Transcript
EGEA-NCA R407C series
0705-6180683-rev.1
Water chillers, heat pumps and condensing units with axial fans 110 - 240 kW
USE, SELECTION AND MAINTENANCE MANUAL
FAST S.p.A.
GB
English
Index Declaration of conformity
4
General standards
5
Description of the unit
6
Configuration
7
Selection of the unit
8
Description of components
9
Accessories
10
Regulation
11
Nominal technical data
13
Total electrical data
17
Cooling performance EGEA NCA R407C F
18
Cooling performance EGEA NCA R407C F L
19
Heating performance EGEA NCA R407C H
20
Heating performance EGEA NCA R407C HL
21
Performance variations
22
Water side pressure drop
22
Desuperheater pressure drop
23
Sound pressure level, dB(A)
23
Hydraulic kit accessory
24
Storage tank design
26
Expansion tank design
27
Operating limits
27
Dimensions and weights
28
Minimum operative spaces
30
List of pressure equipment - Directive PED 97/23 EC
31
Safety
31
Receipt, warehousing, handling
32
Positioning
33
Installation
34
First start-up or start-up after prolonged standstill. Operation
35
Antifreeze protection
38
Unit maintenance
39
Unit disposal
39
Cooling circuit layouts
40
Diagnosis and troubleshooting
46
Alarms table
48
FAST S.p.A. 35044 Montagnana (PD) Italia – Via Luppia Alberi, 170 Tel. (+39) 0429 806311 Telefax (+39) 0429 806340 www.fastaer.com -
[email protected]
DECLARATION OF CONFORMITY
EGEA NCA R407C
We the undersigned declare under our soul responsibility that the unit in subject, EGEA NCA R407C is: 1. Designed, manufactured and marketed in accordance with the following technical specifications: Harmonised standards: - EN 378 -1: Refrigerating system and heat pumps - Safety and environmental requirements - Part 1: Basic requirements, definitions, classification and selection criteria. - EN 378-2: Refrigerating system and heat pumps - Safety and environmental requirements - Part 2: Design, construction, testing, marking and documentation. - EN 378-3: Refrigerating system and heat pumps - Safety and environmental requirements - Part 3: Installation site and personal protection. - EN 378-4: Refrigerating system and heat pumps - Safety and environmental requirements - Part 4: Operation, maintenance, repair and recovery - EN 12735: Copper and copper alloys - Seamless, round copper tubes for air conditioning and refrigeration. 2. Designed, manufactured and marketed in accordance with the following European Directives: - Directive PED 97/23/EC MODULE A1 (the list of pressure equipment is indicated on page 25 of the present manual) - Machine directive 98/37/CE - Low voltage directive 73/23/EEC and subsequent modifications. - (EMC) Electromagnetic compatibility directive 89/336/EEC and subsequent modifications. This validity of this declaration becomes void in the event the machine is modified without the written authorisation of the manufacturer.
Chief executive Montagnana, 06/04/2005
Paolo Gasparini
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
General standards The present manual is an integral par t of the documentation enclosed with the machine. It must be preserved for future reference and must accompany the machine throughout its working life. The manual defines the purpose to which the machine was built and establishes the correct installation and use limits.
CONTAINED IN THE PRESENT MANUAL.
• All use, installation and maintenance instructions of the unit are described in this manual as well as the main accident prevention standards.
GENERAL DANGER SIGNS. Carefully observe all indications at the side of the pictogram. The non observance of the indications could cause hazardous conditions with possible injury to the operator and to the user in general.
• Read all the information contained in this manual carefully. Pay particular attention to the use regulations that are accompanied by “DANGER” o r “ WA R N I N G ”, b e c a u s e i f n o t observed, they could cause damage to the machine and/or persons and property. • For irregularities not contemplated by this manual, consult the local After Sales Service.
•
FAST S.p.A. decline any responsibility for any damage due to the improper use of the machine, and to a partial or superficial reading of the information contained in this manual.
• Installation and maintenance must be carried out by exper t and qualified personnel having training in accordance with law 46/90 and/ or decree 380/2001 concerning the electrical/electronic and air conditioning installations, and registered in the I.A.A. chamber of commerce, otherwise FAST S.p.A. decline any responsibility concerning the safety of the product. THE MANUFACTURER DECLINES ANY RESPONSIBILIT Y FOR DAMAGE TO PROPERT Y, PERSONS OR ANIMALS CAUSED BY THE NON OBSERVANCE OF THE INDICATIONS AND REGULATIONS
Use, selection and maintenance manual
Even though a suitable risk analysis was carried out during the design of the EGEA NCA unit, pay ATTENTION to the pictograms on the machine that make the reading of the manual easier catching the readers attention concerning risks which cannot be avoided or sufficiently limited with the adoption of protection means and measures.
VOLTAGE DANGER SIGN Carefully observe all indications at the side of the pictogram. The signs indicate components on the unit or, in the present manual, identify areas that could generate risks of an electrical nature.
GENERAL WARNING SIGNS Carefully observe all indications to the side of the pictogram that limit some actions in order to ensure greater safety for the operator.
• The guarantee does not cover in any case costs due to turntable ladders, scaffolding or other similar elevating systems that are necessary to carry out operations under guarantee. The guarantee is not valid if: • t h e s e r v i ce s a n d re p a i r s h ave been carried out by unauthorised personnel or companies; • the unit has been previously repaired or modified with non original parts; • the unit has not been suitably maintained; • the instructions illustrated in the present manual have not been observed; • unauthorised modifications have been made.
Note: The manufacturer reserves the right to carry out modifications at any time deemed necessary to improve their product, and are not obliged to apply the said modifications to previously manufactured machines that have already been delivered or are being constructed. The general conditions are in any case subject to the general sale conditions foreseen on the stipulation of the contract.
MAIN GUARANTEE CONDITIONS • The guarantee does not include p a y m e n t fo r d a m a g e s d u e t o incorrect installation by the installer. • The guarantee does not include payment for damages due to the improper use of the unit by the user. • The manufacture is not responsible for injuries to the installer or user, caused by incorrect installation or improper use of the unit; • The equipment must be installed in such a manner so as to permit maintenance and/or repair operations;
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Description of the unit The water chillers, heat pumps and the condensing unit units of the EGEANCA R407C series have been designed to offer the designer, installer and the end client, a unit that favour the dimensional compactness, the high energy efficiency and the extreme silent running. The EGEA-NCA R407C series units are available in 6 sizes from 110 to 240 kW. The first three have a single refrigerating circuit and a hydraulic circuit that can be equipped, if required, with a pump and storage tank. The last three have two refrigerating circuits. The characteristics of the external panels and the axial fans of the condensate section, make these units
ideal for external installation on building roofs or in operative spaces. The electronic microprocessor regulation controls and manages all components and operating parameters of the unit. The high reliability of the components used and the severe tests that the units are subjected to, guarantee high qualitative standards that facilitate the installation and maintenance of the machine. The different versions that are available allow to identify the model that is most suitable for the plant-engineering requirements.
only, heat pump and condensing unit (cooling only) versions, all three available in the standard and low noise version. F H MF (cooling FL
standard cooling only standard heat pump condensing unit only) low noise cooling only (up to 200 kW) HL low noise heat pump (up to 200 kW) MFL low noise condensing unit, cooling only (up to 200 kW)
Available versions The available versions are the cooling
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Configuration Suitably combining the numerous options available for the EGEA-NCA series, each model can be configured so as to respond to a wide range of system requirements. The following paragraph “Choice of unit” lists all items necessary for the compilation of the commercial acronym made up of 23 fields. Where the symbol “0” appears, means that the option is standard. When configuring the unit always remember that not all configurations are possible . For example: • the EGEA-NCA chillers do not foresee the following configurations: cooling only low noise version 240 FL, heat pump low noise version 240HL and muffle condensing unit version 240 ML; • the condensing unit versions do not have the hydraulic kit; • the heat pump version does not have the desuperheater option. Configuration example : EGEA-NCA series water chiller with the following characteristics: - cooling capacity at nominal conditions 180 kW; - cooling only version; - mains water inlet filter - pump hydraulic kit; - condenser protection grille. EGEA-NCA180F00F1000000G Below are illustrated the unit's identification plates. The plate with the performance data is fixed to the machine in two different positions: 1) next to the electrical power supply cable inlet 2) on the door of the electric panel (under the panel that covers it). The plate indicating the weight of the machine is positioned next to the electrical power supply cable inlet.
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Selection of the unit Field
DESCRIPTION
from 1 to 8
EGEA-NCA
9, 10, 11
DIMENSION: 110, 130, 160, 180, 210, 240
12 - MODEL F: cooling only H: heat pump M: condensing unit 13 - VERSION 0: standard L: low noise 14 - POWER SUPPLY 0: supply voltage 400V, three-phase, 50 Hz 15 - WATER FILTER 0: absent WF
F: mains water inlet filter
16 - WATER KIT 0: absent B
1: pump hydraulic kit
A
2: pump and tank hydraulic kit
B1
3: twin pump hydraulic kit
A1
4: twin pump and tank hydraulic kit
17 - EXTERNAL COIL 0: external coil with aluminium fins BSP
A: painted aluminium external coil for aggressive environments
BSR
B: external coil with copper fins for aggressive environments
BSS
C: external coil with tinned copper fins for aggressive environments
18 - HEAT RECOVERY 0: absent DH
D: desuperheater
RH
R: total recovery on cooling only
19 - PRESSURE INDICATORS 0: absent RG
M: pressure gauges
20 - ELECTRIC HEATER 0: absent EH
1: evaporator electric heater
EC
2: compressor cover electric heater (*)
EH + EC
4: evaporator electric heater + compressor cover electric heater
21 - SUPER LOW NOISE VERSION 0: absent CA
A: compressors sound covering
FS
B: fan speed control (**)
CA + FS
C= compressors sound covering + fan speed control
22 - SUPERVISION AND REMOTE PANEL 0: absent RP
P: remote panel
SS
S: supervision with serial line RS485
RP + SS
R: remote panel + supervision with serial line RS485
(*) for cooling only versions without condensate control (**) if fitted on cooling only, accessory including compressor cover heater
23 - OTHER ACCESSORIES 0: absent PG
G: condenser protection grille
RA
A: rubber anti-vibration dampers
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Description of components
Structure and panels : The base is made of thick galvanised steel. The structural parts and external panels are made of epoxy powder coated galvanised steel. Access panel to the compressor and refrigerating circuit housing can be easily removed to help installation and maintenance.
EGEA NCA R407C
Compressors: The direct start-up scroll type compressors with R407C refrigerant, are housed in a special soundproof location to guarantee low noise levels outside the machine. The cooling capacity control is obtained by capacity control levels based on the number of installed compressors. The phase sequence control and the thermal protection are standard to guarantee protection. Evaporator: The evaporator is made with a stainless steel braze welded plate type heat exchanger and thermally insulated with a polyurethane closed cell anti-condensate jacket. A differential pressure switch is supplied as standard to control the circulation of the water. Axial fans: The fans are direct-coupled axial type. The electric motors are Y/Δ 6 pole with internal thermal protection; an electronic speed regulator, controlled based on the condensate pressure, can be supplied as optional. Each fan is equipped, if a hydraulic kit is present, with a double accident-prevention protection grid. Condenser: The finned coil of the condenser is made with Cu pipes and Al fins with corrugated surfaces blocked by means of the mechanical expansion of the pipes. Cu/Cu coils can be supplied for specific installations or with epoxy anti-corrosion protection. Thermostatic valve: The valve guarantees a sufficient level of intake overheating to the compressor inflecting the flow of refrigerant through the evaporator. The valve has an external pressure equaliser to guarantee a more rapid response to the system's fluctuation. Filter-drier: The ceramic and hygroscopic filter holds the impurities and possible humidity present in the refrigerating circuit.
KEY
1
Compressor
2
Condenser coil
3
Plate evaporator
4
Axial fans
5
Tank
6
Pump
7
Expansion tank
8
Electrical panel
High pressure switch: Two pressure switches positioned on the high pressure side of the refrigerating circuit stop the compressor in the event of abnormal pressures. Low pressure switch: The pressure switch positioned on the low pressure side of the refrigerating circuit stop the compressor in the event of abnormal pressures. Sight glass: Allows to check the amount of refrigerant and the possible presence of humidity in the refrigerating circuit. Liquid receiver: Serves to hold the surplus liquid refrigerant in the heat pump operation. Reverse cycle valve: Inverts the flow of refrigerant to the change of the summer/winter function and during the defrosting cycle. Refrigerating circuit safety valve: Valve set at an absolute pressure of 31 bar and intervenes by discharging overpressure in abnormal operating conditions.
EMC 89/336/EEC and 92/31/EEC. It is equipped with a doorstop disconnector switch that only permits access to the panel when the power is removed by means of the opening lever. Regulation: The electric panel complete with power and regulation section, includes the microprocessor, the general automatic cut-out switch, the auxiliary circuit's circuit breakers, the compressors and fans contactors and the control board. The microprocessor of the cooling only version (F) and the heat pump version (MF) allows to manage the cooling capacity operations on one or more capacity step controls based on the temperature control of the system recycled water, setting of the operating parameters, display of the inlet and outlet temperature of the evaporator, display of the alarms reset, setting the timing to protect the compressors, automatic restart after loss of power and management of the circulation pumps. The regulation of the heat pump version (H), in addition to that described, also foresees the management of the refrigerating circuit and defrosting circuits inversion.
Electric panel: Contains the controls and power section and the safety devices. The electric panel is in accordance with the CEI 60204-1 and the electromagnetic compatibility directives
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Accessories DESUPERHEATER (optional) The partial recovery is only active during the summer cycle function. The heat that is normally dispersed through the condenser coil is partially recovered by braze welded stainless steel plate type heat exchanger (positioned upstream of the condenser coil) to supply hot water for sanitary or other use.
HYDRAULIC KITS Hydraulic kit A: Includes: expansion tank, storage tank, circulating pump, ball valve, air valve, discharge tap, safety valve (3 bar). Hydraulic kit A1: Includes: the same as hydraulic kit A, with Twin pump.
Hydraulic kit B: Includes: circulating pump, ball valve, air valve, water discharge tap. Hydraulic kit B1: Includes: the same as hydraulic kit B, with Twin pump. A serial output and connection gateway to a supervision network can be supplied as an optional accessory to the different versions.
STANDARD EQUIPMENT AND ACCESSORIES EGEA - NCA
F
FL
MF
MFL
H
HL
General disconnectors
S
S
S
S
S
S
Differential pressure switch
S
S
n.d.
n.d.
S
S
Microprocessor control
S
S
S
S
S
S
Free contact ON/OFF
S
S
S
S
S
S
General alarm free contact
S
S
S
S
S
S
Water inlet mesh filter
O
O
n.d.
n.d.
O
O
Hydraulic kit B
O
O
n.d.
n.d.
O
O
Hydraulic kit A
O
O
n.d.
n.d.
O
O
Hydraulic kit B1
O
O
n.d.
n.d.
O
O
Hydraulic kit A1
O
O
n.d.
n.d.
O
O
Pre-painted aluminium external coil
O
O
O
O
O
O
External coil with copper fins
O
O
O
O
O
O
External coil with tinned copper fins
O
O
O
O
O
O
Desuperheater
O
O
n.d.
n.d.
n.d.
n.d.
Total recovery on cooling only
O
O
n.d.
n.d.
n.d.
n.d.
Refrigerant pressure gauges
O
O
n.d.
n.d.
O
O
Evaporator electric heater
O
O
n.d.
n.d.
O
O
Compressor cover electric heater
O
O
O
O
O
O
Compressors sound covering
O
O
O
O
O
O
Fan speed electronic regulator
O
O
O
O
O
O
Remote panel
O
O
O
O
O
O
Supervision with serial line RS485
O
O
O
O
O
O
Condenser protection grille
O
O
O
O
O
O
Base anti-vibration dampers
O
O
O
O
O
O
S - standard O - optional n.d. - not available
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Regulation MICROPROCESSOR CARD The cooling only unit and heat pump unit versions are equipped with microprocessor control μC2 with 3 digit display and icon to set the control parameters: • Selection of the operating mode (cooling or heating for the heat pump version); • Evaporator water inlet temperature regulation with one or two step thermostat control; • Defrost cycle management (for the heat pump version); • setpoint and related differential; • setpoint compensation constant based on the external temperature; • Control of the cooling capacity on the evaporator water inlet temperature; • control of the compressor on/off times;
• water discharge temperature; • high/low pressure transducer. The following page illustrates "probe reading parameters" table containing the description of the probes used.
• compressor operating hour count;
• auto-diagnosis in the event of probe failure (temperature or pressure); •
auto-diagnosis in the event of abnormal supply voltage;
• overheating of the compressors' electric motors; • intervention of the high or low pressure switches;
• control of the water flow to the evaporator by means of a standard differential pressure switch;
• antifreeze;
• activation of the antifreeze electric heater (optional) to protect the evaporator;
• high/low temperature on system start-up.
• start, stop, reset;
A table containing the list of alarms managed by the microprocessor is illustrated at the end of the present manual.
The following page illustrates "Regulation setting parameters" table, where the main parameters used for the regulation are described.
Displayed main parameters: • water inlet temperature;
• consent to an external water pump (for versions without hydraulic kit ).
Displayed main alarms
• compressor start-up delay; • rotation of the compressor starts following the FIFO (first-in first out) logic for long term uniform use;
• remote setting of the operating cycle (cooling or heating) for the heat pump version;
• lack of water to the evaporator (differential pressure switch);
Fundamental operations of the unit that can be managed by means of contacts on the panel: • remote start and stop of the unit;
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
REGULATION SETTING PARAMETERS Display indications
Parameter and description
Default level
Min
Max
Unit of measure
Variation
Default
Visibility
Supervisor variable
Type variable
Value FAST
r01
Summer set point
D
r13
r14
°C/°F
0.1
12.0
-
41 (R/W)
Analogic
-
r02
Summer differential
D
0.3
50.0
°C/°F
0.1
3.0
-
42 (R/W)
Analogic
2.0
r03
Winter set point
D
r15
r16
°C/°F
0.1
40.0
-
43 (R/W)
Analogic
-
r04
Winter differential
D
0.3
50.0
°C/°F
0.1
3.0
-
44 (R/W)
Analogic
-
r05
Compressor rotation 0 = disabled 1 = FIFO type 2 = with hour control
F
0
2
Flag
1
1
-
78 (R/W)
Complete
2
r07
Neutral zone differential
F
0.1
50.0
°C/°F
0.1
2.0
-
45 (R/W)
Analogic
0.1
r13
Summer set minimum
U
-40.0
r14
°C/°F
0.1
8.0
-
47 (R/W)
Analogic
-
r14
Summer set maximum
U
r13
176.0
°C °F
0.1
18.0
-
48 (R/W)
Analogic
-
r15
Winter set minimum
U
-40.0
r16
°C/°F
0.1
27.0
-
49 (R/W)
Analogic
-
r16
Winter set maximum
U
r15
176.0
°C °F
0.1
55.0
-
50 (R/W)
Analogic
-
PROBE READING PARAMETERS Display indications
Parameter and description
Default level
Min
Max
Unit of measure
Variation
Default
Visibility
Supervisor variable
Type variable
BOO
Probe selection to view on display
U
0
9
Flag
1
0
S
24 (R/W)
Complete
BO1
Water inlet probe
D
-
-
°C/°F
-
-
S
70 (R)
Analogic
BO2
Water outlet probe
D
-
-
°C/°F
-
-
S
71 (R)
Analogic
B04
high-low pressure transducer 1
D
-
-
°C/°F (bar)
-
-
S
73 (R)
Analogic
B08
high-low pressure transducer 2
D
-
-
°C/°F (bar)
-
-
E
77 (R)
Analogic
KEY U = User D = Direct F = Factory R/W = supervisor read/write parameter R = supervisor read only parameter S = always present E = expansion
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Nominal technical data Nominal technical data EGEA-NCA R407C (F) and (MF) - cooling only and condensing unit versions
Model
110
130
160
180
210
240
Nominal cooling capacity
[kW]
103.4
127.3
151.3
174.6
197.8
236.7
Rated input power
[kW]
37.1
44.5
58.1
66.4
74.8
97.1
E.E.R.
2.8
2.9
2.6
2.6
2.6
2.4
Desuperheater power
28.1
34.4
41.9
48.2
54.5
66.8
[kW]
Compressor type
scroll
Number of compressors
2
2
2
4
4
4
Number of circuits
1
1
1
2
2
2
Performance levels
2
2
2
4
4
4
Power supply
400 V - 3ph - 50 Hz
Casing protection class Evaporator/number
IP 23
plates/1
Water flow rate
[m3/h]
Pressure drop
17.8
21.9
26.0
30.0
34.0
40.7
[kPa]
26
26
29
26
33
24
Water flow rate
[m3/h]
4.8
5.9
7.2
8.3
9.4
11.5
Pressure drop
[kPa]
12
15
21
9
11
18
Desuperheater
Refrigerant type Quantity of refrigerant
R407C
[kg]
17.3
25.4
33.2
46.1
48.3
50.4
Axial fans Number of fans
3
3
3
4
4
4
[m3/h]
60000
57000
54000
72000
72000
72000
Length
[mm]
3308
3308
3308
4308
4308
4308
Width
[mm]
1206
1206
1206
1206
1206
1206
Height
[mm]
2311
2311
2311
2311
2311
2311
2”
2”
2”
DN80
DN80
DN80
[kg]
1148
1186
1237
1882
2032
2066
[kg]
1096
1121
1159
1749
1875
1877
59
59
59
61
61
61
Total air flow rate Dimensions and weight
Connectors diameter Version F weight Version MF weight Sound pressure level
♫
[dB(A)]
Outside air temperature 35°C; chilled water temperature 7/12°C. The compressor's operating conditions for the MF version are
the same as version F
Energetic index in relation to the refrigerating cycle
Desuperheater inlet/outlet water temperature 40/45°C
Not present in the condensing unit version
Value not available for the condensing unit version. This is supplied pressurised with inert gas.
♫
Sound pressure at 10 m in free field, with direction factor 2.
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Nominal technical data EGEA-NCA R407C (FL) and (MFL) - cooling only and condensing unit low noise versions
Model
110
130
160
180
210
Nominal cooling capacity
[kW]
103.4
124.6
154.6
171.6
188.5
Rated input power
[kW]
37.1
46.1
56.3
68.1
79.8
E.E.R.
2.8
2.7
2.7
2.5
2.4
Desuperheater power
28.1
34.1
42.2
47.9
53.7
Number of compressors
2
2
2
4
4
Number of circuits
1
1
1
2
2
Performance levels
2
2
2
4
4
[kW]
Compressor type
scroll
Power supply
400 V - 3ph - 50 Hz
Casing protection class Evaporator/number
IP 23
plates/1
Water flow rate
[m3/h]
Pressure drop
17.8
21.4
26.6
29.5
32.4
[kPa]
26
25
30
25
30
Water flow rate
[m3/h]
4.8
5.9
7.3
8.2
9.2
Pressure drop
[kPa]
12
15
21
9
11
[kg]
20.2
29.7
53.9
56.5
Desuperheater
Refrigerant type Quantity of refrigerant
R407C
38.8
Axial fans Number of fans [m3/h]
Total air flow rate
3
4
4
4
4
42000
58000
56000
56000
56000
Dimensions and weight Length
[mm]
3308
4308
4308
4308
4308
Width
[mm]
1206
1206
1206
1206
1206
Height
[mm]
2311
2311
2311
2311
2311
2”
2”
2”
DN80
DN80
Version FL weight
[kg]
1267
1326
1426
1952
2102
Version MFL weight
[kg]
1215
1262
1348
1819
1945
51
52
52
53
53
Connectors diameter
Sound pressure level
♫
[dB(A)]
Outside air temperature 35°C; chilled water temperature 7/12°C. The compressor's operating conditions for the MFL
version are the same as version FL
Energetic index in relation to the refrigerating cycle
Desuperheater inlet/outlet water temperature 40/45°C
Not present in the condensing unit version
Value not available for the condensing unit version. This is supplied pressurised with inert gas.
♫
Sound pressure at 10 m in free field, with direction factor 2.
Use, selection and maintenance manual
14
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Nominal technical data EGEA-NCA R407C (H) - heat pump version
Model Nominal heating capacity
[kW]
110
130
160
180
210
240
110.6
136.2
161.9
186.8
211.6
253.7
Rated input power
[kW]
31.6
40.0
47.6
55.0
58.8
70.5
Nominal cooling capacity
[kW]
103.4
127.3
151.3
174.6
197.8
236.7
Rated input power
[kW]
37.1
44.5
58.1
66.4
74.8
97.1
COP
3.5
3.4
3.4
3.4
3.6
3.6
Compressor type
scroll
Number of compressors
2
2
2
4
4
4
Number of circuits
1
1
1
2
2
2
Performance levels
2
2
2
4
4
4
Power supply
400 V - 3ph - 50 Hz
Casing protection class
IP 23
Condenser/number
Plates/1
Water flow rate
[m3/h]
Pressure drop
[kPa]
19.0
23.4
27.8
32.1
36.4
43.6
29
29
33
29
37
27
Refrigerant type
R407C
Quantity of refrigerant
[kg]
19.7
29.1
38.1
53.1
55.6
58.1
Axial fans Number of fans
3
3
3
4
4
4
[m3/h]
60000
57000
54000
72000
72000
72000
Length
[mm]
3308
3308
3308
4308
4308
4308
Width
[mm]
1206
1206
1206
1206
1206
1206
Height
[mm]
2311
2311
2311
2311
2311
2311
2”
2”
2”
DN80
DN80
DN80
[kg]
1178
1213
1264
1912
2064
2095
59
59
59
61
61
61
Total air flow rate Dimensions and weight
Connectors diameter Version H weight Sound pressure level
♫
[dB(A)]
Outside air temperature 7°C, 85 % R.H.; water temperature to the condenser 40/45°C
Outside air temperature 35°C; chilled water temperature 7/12°C.
Energetic index in relation to the refrigerating cycle
♫
Sound pressure at 10 m in free field, with direction factor 2.
Use, selection and maintenance manual
15
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Nominal technical data EGEA-NCA R407C (HL)- heat pump low noise version
Model
110
130
160
180
210
Nominal heating capacity
[kW]
110.6
133.3
165.4
183.5
201.6
Rated input power
[kW]
32.5
40.4
48.7
54.1
56.0
Nominal cooling capacity
[kW]
103.4
124.6
154.6
171.6
188.5
Rated input power
[kW]
37.1
46.1
56.3
68.1
79.8
COP
3.4
3.3
3.4
3.4
3.6
Compressor type
scroll
Number of compressors
2
2
2
4
4
Number of circuits
1
1
1
2
2
Performance levels
2
2
2
4
4
Power supply
400 V - 3ph - 50 Hz
Casing protection class
IP 23
Condenser/number
Plates/1
Water flow rate
[m3/h]
Pressure drop
[kPa]
19.0
22.9
28.4
31.6
34.7
29
28
34
28
34
Refrigerant type
R407C
Quantity of refrigerant
[kg]
23.0
34.0
44.5
62.0
64.9
Axial fans Number of fans
3
4
4
4
4
[m3/h]
42000
58000
56000
56000
56000
Length
[mm]
3308
4308
4308
4308
4308
Width
[mm]
1206
1206
1206
1206
1206
Height
[mm]
2311
2311
2311
2311
2311
2”
2”
2”
DN80
DN80
1301
1357
1457
1983
2135
51
52
52
53
53
Total air flow rate Dimensions and weight
Connectors diameter Version HL weight Sound pressure level
[kg] ♫
[dB(A)]
Outside air temperature 7°C, 85 % R.H.; water temperature to the condenser 40/45°C
Outside air temperature 35°C; chilled water temperature 7/12°C.
Energetic index in relation to the refrigerating cycle
♫
Sound pressure at 10 m in free field, with direction factor 2.
Use, selection and maintenance manual
16
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Total electrical data Cooling only version, (F), and heat pump version, (H) Model
110
130
160
Power supply
180
210
240
400 V - 3 ph - 50 Hz
Maximum input power
[kW]
67.1
69.1
79.1
97.0
111.0
133.0
Maximum input current
[A]
114.7
118.7
134.7
162.0
180.0
214.0
Maximum starting current
[A]
280
340
400
340
360
438
110
130
160
180
210
240
The input also takes the pump option into account.
Condensing unit, (MF) Model Power supply
400 V - 3 ph - 50 Hz
Maximum input power
[kW]
64.6
66.6
76.6
93.0
106.1
128.1
Maximum input current
[A]
109.7
113.7
129.7
154.7
170.0
204.0
Maximum starting current
[A]
280
340
400
340
360
438
Cooling only low noise version, (FL), and heat pump low noise version, (H) Model
110
Power supply
130
160
180
210
400 V - 3 ph - 50 Hz
Maximum input power
[kW]
64.9
68.1
78.1
94.0
107.4
Maximum input current
[A]
109.7
115.8
131.8
155.2
174.0
Maximum starting current
[A]
280
340
400
340
360
The input also takes the pump option into account.
Condensing unit low noise version, (MFL) Model
110
130
Power supply
160
180
210
400 V - 3 ph - 50 Hz
Maximum input power
[kW]
62.4
65.6
75.6
90.0
102.5
Maximum input current
[A]
104.7
110.8
126.8
147.9
164.0
Maximum starting current
[A]
280
340
400
340
360
Use, selection and maintenance manual
17
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Cooling per formance EGEA NCA
ta Size
110
130
160
180
210
240
28
30
32
35
40
43
twu
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
5
104.8
32.2
102.5
33.4
100.3
34.6
97.0
36.4
91.5
39.4
88.2
41.2
6
108.2
32.5
105.9
33.7
103.6
34.9
100.2
36.7
94.5
39.7
91.1
41.5
7
111.6
32.9
109.3
34.1
106.9
35.3
103.4
37.1
97.6
40.1
94.0
41.9
8
115.1
33.2
112.7
34.4
110.2
35.6
106.6
37.4
100.6
40.4
97.0
42.2
9
118.5
33.6
116.0
34.8
113.6
36.0
109.8
37.8
103.6
40.8
99.9
42.6
10
122.0
34.0
119.4
35.2
116.9
36.4
113.0
38.2
106.7
41.2
102.9
43.0
5
128.4
38.2
125.8
39.7
123.3
41.3
119.5
43.7
113.2
47.6
109.4
50.0
6
132.5
38.6
129.9
40.2
127.3
41.7
123.4
44.1
116.9
48.0
113.0
50.4
7
136.7
39.0
134.0
40.6
131.3
42.2
127.3
44.5
120.6
48.5
116.6
50.8
8
140.9
39.5
138.1
41.0
135.4
42.6
131.2
45.0
124.3
48.9
120.2
51.3
9
145.1
39.9
142.2
41.5
139.4
43.1
135.1
45.4
128.0
49.4
123.8
51.7
10
149.3
40.4
146.3
41.9
143.4
43.5
139.0
45.9
131.7
49.8
127.4
52.2
5
153.7
50.7
150.4
52.4
147.2
54.2
142.4
56.9
134.3
61.4
129.5
64.1
6
158.5
51.3
155.2
53.0
151.8
54.8
146.9
57.5
138.6
61.9
133.6
64.6
7
163.3
51.9
159.9
53.7
156.5
55.4
151.3
58.1
142.8
62.5
137.7
65.2
8
168.1
52.5
164.6
54.3
161.1
56.0
155.8
58.7
147.1
63.1
141.8
65.7
9
172.9
53.1
169.3
54.9
165.7
56.6
160.3
59.3
151.3
63.7
145.9
66.3
10
177.8
53.8
174.1
55.5
170.4
57.2
164.8
59.9
155.6
64.2
150.1
66.9
5
177.1
57.7
173.3
59.8
169.6
61.9
164.0
65.1
154.7
70.4
149.1
73.6
6
182.7
58.3
178.9
60.5
175.0
62.6
169.3
65.8
159.7
71.1
153.9
74.3
7
188.4
59.0
184.5
61.1
180.5
63.2
174.6
66.4
164.7
71.7
158.8
74.9
8
194.1
59.7
190.0
61.8
186.0
63.9
179.9
67.1
169.7
72.4
163.6
75.6
9
199.8
60.4
195.6
62.5
191.4
64.6
185.2
67.8
174.7
73.0
168.5
76.2
10
205.5
61.1
201.2
63.2
196.9
65.3
190.4
68.4
179.7
73.7
173.3
76.9
5
200.5
64.7
196.2
67.1
192.0
69.6
185.6
73.3
175.0
79.5
168.7
83.2
6
207.0
65.4
202.6
67.9
198.3
70.3
191.7
74.0
180.8
80.2
174.2
83.9
7
213.5
66.1
209.0
68.6
204.5
71.1
197.8
74.8
186.6
80.9
179.8
84.6
8
220.1
66.9
215.4
69.3
210.8
71.8
203.9
75.5
192.3
81.7
185.4
85.4
9
226.1
67.6
221.9
70.1
217.1
72.5
210.0
76.2
198.1
82.4
191.0
86.1
10
233.2
68.4
228.3
70.8
223.4
73.3
216.1
77.0
203.9
83.2
196.6
86.9
5
240.1
84.0
235.1
87.1
230.1
90.2
222.6
94.9
210.2
102.7
202.8
107.4
6
247.6
85.1
242.5
88.2
237.4
91.3
229.7
96.0
216.9
103.8
209.3
108.4
7
255.1
86.2
249.8
89.3
244.6
92.4
236.7
97.1
223.6
104.8
215.8
109.5
8
262.6
87.3
257.2
90.4
251.8
93.5
243.8
98.1
230.3
105.9
222.3
110.6
9
270.1
88.4
264.6
91.5
259.1
94.6
250.8
99.2
237.0
107.0
228.8
111.7
10
277.7
89.5
272.0
92.6
266.3
95.7
257.9
100.3
243.7
108.1
235.3
112.8
Data refer to a thermal head of 5°C of the exchanger inlet/outlet water ta outside air temperature [°C] twu outlet water temperature [°C] Pf cooling capacity [kW] Pa input power [kW]
Use, selection and maintenance manual
18
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Cooling performance EGEA NCA R407C FL
ta Size
110
130
160
180
210
28
30
32
35
40
43
twu
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
Pf
Pa
5
104.9
32.1
102.6
33.3
100.3
34.5
96.9
36.4
91.3
39.5
87.9
41.4
6
108.3
32.4
106.0
33.7
103.6
34.9
100.1
36.8
94.3
39.9
90.8
41.7
7
111.8
32.8
109.4
34.0
107.0
35.3
103.4
37.1
97.3
40.2
93.7
42.1
8
115.2
33.1
112.8
34.4
110.3
35.6
106.6
37.5
100.4
40.6
96.7
42.4
9
118.7
33.5
116.1
34.7
113.6
36.0
109.8
37.8
103.4
40.9
99.6
42.8
10
122.2
33.9
119.5
35.1
116.9
36.3
113.0
38.2
106.5
41.3
102.6
43.2
5
126.0
39.7
123.4
41.2
120.9
42.8
117.1
45.1
110.8
49.0
107.0
51.4
6
130.0
40.1
127.4
41.7
124.8
43.3
120.9
45.6
114.3
49.5
110.4
51.8
7
134.0
40.6
131.3
42.2
128.6
43.7
124.6
46.1
117.9
50.0
113.9
52.3
8
138.0
41.1
135.3
42.7
132.5
44.2
128.4
46.6
121.5
50.5
117.4
52.8
9
142.0
41.6
139.2
43.1
136.4
44.7
132.2
47.0
125.1
50.9
120.9
53.3
10
146.1
42.1
143.2
43.6
140.3
45.2
135.9
47.5
128.7
51.4
124.4
53.8
5
156.8
48.9
153.5
50.7
150.2
52.5
145.3
55.2
137.2
59.8
132.3
62.6
6
161.8
49.4
158.4
51.2
155.0
53.1
150.0
55.8
141.6
60.3
136.5
63.1
7
166.8
50.0
163.3
51.8
159.8
53.6
154.6
56.3
146.0
60.9
140.8
63.6
8
171.8
50.6
168.2
52.4
164.6
54.2
159.3
56.9
150.4
61.4
145.1
64.1
9
176.8
51.2
173.1
53.0
169.4
54.8
164.0
57.5
154.8
61.9
149.4
64.6
10
181.8
51.8
178.0
53.5
174.3
55.3
168.6
58.0
159.3
62.5
153.7
65.2
5
174.4
59.3
170.7
61.4
166.9
63.5
161.3
66.7
151.9
72.0
146.3
75.2
6
179.9
60.0
176.1
62.1
172.2
64.2
166.4
67.4
156.8
72.7
151.0
75.8
7
185.4
60.7
181.5
62.8
177.5
64.9
171.6
68.1
161.7
73.4
155.7
76.5
8
190.9
61.4
186.9
63.5
182.8
65.6
176.7
68.8
166.5
74.1
160.4
77.2
9
196.4
62.2
192.3
64.3
188.1
66.4
181.8
69.5
171.4
74.8
165.1
77.9
10
202.0
62.9
197.7
65.0
193.4
67.1
187.0
70.2
176.3
75.5
169.9
78.6
5
192.1
69.7
187.8
72.1
183.6
74.5
177.3
78.1
166.7
84.1
160.4
87.8
6
198.1
70.5
193.7
72.9
189.4
75.4
182.9
79.0
172.0
85.0
165.5
88.6
7
204.1
71.4
199.6
73.8
195.2
76.2
188.5
79.8
177.3
85.9
170.6
89.5
8
210.1
72.3
205.5
74.7
201.0
77.1
194.1
80.7
182.6
86.7
175.8
90.3
9
216.1
73.2
211.4
75.6
206.7
78.0
199.7
81.6
188.0
87.6
180.9
91.2
10
222.2
74.1
217.3
76.5
212.5
78.9
205.3
82.5
193.3
88.5
186.1
92.1
Data refer to a thermal head of 5°C of the exchanger inlet/outlet water ta outside air temperature [°C] twu outlet water temperature [°C] Pf cooling capacity [kW] Pa input power [kW]
Use, selection and maintenance manual
19
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Heating performance EGEA NCA R407C H
ta Size
110
130
160
180
210
240
-5
0
3
5
7
10
twu
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
35
88.6
24.4
97.4
25.2
103.3
25.6
107.4
25.9
111.4
26.2
117.6
26.4
40
88.2
27.4
97.0
28.2
102.8
28.8
106.9
29.1
110.9
29.4
117.0
29.7
45
87.9
30.3
96.8
31.3
102.6
31.9
106.6
32.2
110.6
32.6
116.7
32.9
50
87.7
33.7
96.5
34.7
102.3
35.4
106.3
35.8
110.3
36.1
116.4
36.4
35
108.9
30.1
119.9
31.0
127.0
31.6
132.0
31.9
137.1
32.2
144.6
32.5
40
108.4
33.7
119.4
34.7
126.4
35.5
131.5
35.8
136.5
36.2
143.9
36.5
45
108.2
37.3
119.1
38.5
126.1
39.3
131.2
39.7
136.2
40.0
143.6
40.4
50
108.0
41.4
118.8
42.7
125.8
43.5
130.8
44.0
135.8
44.4
143.3
44.9
35
129.6
35.8
142.6
36.8
151.1
37.6
157.0
38.0
163.0
38.3
171.9
38.7
40
129.0
40.0
141.9
41.3
150.4
42.2
156.3
42.6
162.3
43.0
171.2
43.4
45
128.7
44.4
141.6
45.8
150.0
46.8
156.0
47.2
161.9
47.6
170.8
48.1
50
128.3
49.2
141.2
50.8
149.6
51.8
155.6
52.3
161.4
52.8
170.3
53.3
35
149.6
41.3
164.6
42.5
174.4
43.4
181.2
43.8
188.1
44.2
198.4
44.7
40
148.8
46.3
163.8
47.7
173.6
48.7
180.4
49.2
187.3
49.6
197.5
50.1
45
148.5
51.3
163.4
52.9
173.1
54.0
180.0
54.5
186.8
55.0
197.1
55.5
50
148.1
56.8
163.0
58.6
172.7
59.8
179.5
60.4
186.3
61.0
196.5
61.5
35
169.4
46.7
186.4
48.2
197.4
49.1
205.3
49.6
213.1
50.1
224.7
50.6
40
168.6
52.4
185.6
54.0
196.6
55.2
204.3
55.7
212.2
56.2
223.8
56.7
45
168.2
58.1
185.1
59.9
196.2
61.1
203.9
61.7
211.6
62.3
223.3
62.9
50
167.8
64.3
184.6
66.4
195.6
67.7
203.3
68.4
211.0
69.0
222.6
69.7
35
203.0
56.0
223.4
57.7
236.6
58.9
246.1
59.4
255.4
60.0
269.4
60.7
40
202.1
62.8
222.4
64.7
235.6
66.0
244.9
66.7
254.3
67.4
268.2
68.0
45
201.6
69.6
221.9
71.8
235.0
73.2
244.4
74.0
253.7
74.7
267.6
75.5
50
201.0
77.2
221.3
79.5
234.4
81.1
243.7
82.0
252.9
82.7
266.9
83.6
Data refer to a thermal head of 5°C of the exchanger inlet/outlet water ta outside air temperature [°C] - R.H. 85 % twu outlet water temperature [°C] Pt heating capacity [kW] Pa input power [kW]
Use, selection and maintenance manual
20
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Heating performance EGEA NCA R407C
ta Size
110
130
160
180
210
-5
0
3
5
7
10
twu
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
Pt
Pa
35
88.6
24.4
97.4
25.2
103.3
25.6
107.4
25.9
111.4
26.2
117.6
26.4
40
88.2
27.4
97.0
28.2
102.8
28.8
106.9
29.1
110.9
29.4
117.0
29.7
45
87.9
30.3
96.8
31.3
102.6
31.9
106.6
32.2
110.6
32.5
116.7
32.9
50
87.7
33.7
96.5
34.7
102.3
35.4
106.3
35.8
110.3
36.1
116.4
36.4
35
106.6
29.4
117.4
30.3
124.3
31.0
129.2
31.2
134.2
31.5
141.5
31.8
40
106.1
32.9
116.8
34.0
123.7
34.7
128.7
35.0
133.6
35.4
140.9
35.7
45
105.9
36.5
116.5
37.7
123.5
38.4
128.4
38.8
133.3
40.4
140.6
39.6
50
105.7
40.5
116.3
41.8
123.2
42.6
128.0
43.1
132.9
43.5
140.2
43.9
35
132.4
36.5
145.7
37.6
154.4
38.4
160.4
38.8
166.5
39.1
175.7
39.5
40
131.8
40.9
145.0
42.2
153.7
43.1
159.7
43.5
165.8
43.9
174.9
44.4
45
131.5
45.4
144.7
46.8
153.3
47.8
159.3
48.3
165.4
48.7
174.5
49.2
50
131.1
50.3
144.3
51.8
152.9
52.9
158.9
53.4
164.9
53.9
174.0
54.4
35
146.9
40.6
161.7
41.8
171.3
42.6
178.0
43.1
184.8
43.4
194.9
43.9
40
146.2
45.5
160.9
46.8
170.5
47.9
177.2
48.3
184.0
48.7
194.1
49.3
45
145.9
50.4
160.5
51.9
171.9
53.1
176.8
53.5
183.5
54.1
193.6
54.5
50
145.4
55.8
160.1
57.6
169.6
58.7
176.4
59.3
183.0
59.9
193.0
60.5
35
161.4
44.5
177.6
45.9
188.1
46.8
195.6
47.3
203.0
47.7
214.1
48.2
40
160.6
49.9
176.8
51.5
187.3
52.5
194.7
53.1
202.1
53.5
213.2
54.0
45
160.3
55.3
176.4
57.1
186.9
58.2
194.2
58.8
201.6
56.0
212.7
59.9
50
159.8
61.3
175.9
63.2
186.4
64.5
193.7
65.2
201.1
65.8
212.1
66.4
Data refer to a thermal head of 5°C of the exchanger inlet/outlet water ta outside air temperature [°C] - R.H. 85 % twu outlet water temperature [°C] Pt heating capacity [kW] Pa input power [kW]
Use, selection and maintenance manual
21
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Performance variations DT different from the nominal CHILLER
The performance declared up until now have been determined referring to a DT of the water between the inlet and the outlet of the plate type heat exchanger of 5°C. The table to the side indicates the correction coefficient to apply to the different DT.
DT = 4°C
DT = 5°C
DT = 8°C
Cooling capacity correction factor
0.98
1
1.03
Input power correction factor
0.99
1
1.02
Heating capacity correction factor
0.99
1
1.03
Input power correction factor
0.99
1
1.01
0.000
0.0001
0.0002
HEAT PUMP
Fouling factors The declared performances also refer to clean heat exchangers. For fouling factors different than 0, the performance data is multiplied by the value indicated in the table.
CHILLER Fouling factor [m2·K/W] Cooling capacity correction factor
1
0.96
0.92
Input power correction factor
1
0.99
0.98
Heating capacity correction factor
1
0.98
0.94
Input power correction factor
1
0.99
0.98
0%
10%
20%
Cooling capacity correction factor
1
0.99
0.98
Evaporator pressure drop correction factor
1
1.14
1.24
HEAT PUMP
Influence of percentage
the
glycol
If the water in the cooling only mode is mixed with ethylene glycol to avoid freezing, there is a variation in the performance and the pressure drop as indicated in the table.
PERCENTAGE OF GLYCOL
Water side pressure drop The variation of the water side pressure drop based on the flow rate in the plate heat exchanger (evaporator/condenser)
is illustrated in diagram 1 for each model. These loses are intended as net of the
45,0
50,0 45,0 110
40,0
160 130
180
2"
40,0
210
3"
35,0
240
35,0
30,0
1SFTTVSFESPQ <1B>
1SFTTVSFESPQ <1B>
water side filter that are illustrated in diagram 2 (clean filter).
30,0 25,0 20,0 15,0
25,0 20,0 15,0
10,0
10,0
5,0
5,0
0,0 5,0
15,0
25,0
35,0
45,0
0,0
55,0
0,0
8BUFSnPXSBUF
20,0
30,0
40,0
50,0
8BUFSnPXSBUF
Diagram 1 - Plate heat exchanger pressure drop
Use, selection and maintenance manual
10,0
Diagram 2 - Filter pressure drop
22
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Desuperheater pressure drop The variation of the water side pressure drop based on the flow rate in the desuperheater is
illustrated in Diagram 3 for each model. These loses are intended as net
30,0
of the water side filter that are illustrated in diagram 4 (clean filter).
45,0 1" 1/2
40,0
110-130-160
25,0
20,0
1SFTTVSFESPQ <1B>
1SFTTVSFESPQ <1B>
35,0 180-210-240
15,0
10,0
30,0 25,0 20,0 15,0 10,0
5,0
5,0 0,0
0,0 2,0
4,0
6,0
8,0
10,0
2,0
12,0
4,0
6,0
8,0
10,0
12,0
8BUFSNBTTnPX
8BUFSNBTTnPX
Diagram 3 - Desuperheater pressure drop
Diagram 4 - Filter pressure drop
Sound pressure level, dB(A) Standard cooling only (F), heat pump (H), and condensing unit (MF) versions Model
Distance [m]
110
140
160
180
210
240
1
75
75
75
77
77
77
3
67
67
67
69
69
69
5
64
64
64
66
66
66
10
59
59
59
61
61
61
20
54
54
54
56
56
56
Low noise cooling only (FL), heat pump (HL), and condensing unit (MFL) versions Model
Distance [m]
Use, selection and maintenance manual
110
140
160
180
210
1
67
68
68
69
69
3
59
60
60
61
61
5
56
57
57
58
58
10
51
52
52
53
53
20
46
47
47
48
48
23
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Hydraulic kit accessory The hydraulic kit accessory allows the installer to complete the system with suitable components selected for its correct functioning. The EGEA-NCA R407C series unit house the hydraulic kit inside the cooling structure to increase compactness and space economy. The bearing structure also protects the hydraulic kit components from exposure to bad weather. The hydraulic kit is available in the following versions B pump only hydraulic kit A pump and tank hydraulic kit B1 pump only with twin pump hydraulic kit A1 twin pump and tank hydraulic kit
Hydraulic kit B - EGEA NCA 110 - 160 water inlet
PD
EV
Fig. 1
Hydraulic kit B - EGEA NCA 180 - 240 P
VF
water inlet
P
VF
Hydraulic kit A
VF
FA
Hydraulic kit B Hydraulic kit B in fig. 1 includes a circulation pump and an air relief valve. The water filter, which is not included in the kit, is in any case available as an accessory. Two parallel pumps are present in the 180 to 240 versions (fig. 2). A water filter must be fitted on the inlet piping to protect the heat exchanger and in the event of problems due to blockage of the heat exchanger.
water outlet
P
VF
VF
water outlet PD
VF
FA
Fig. 2
EV
PUMPING UNIT Model
110
130
160
180
210
240
[kPa]
164
149
116
134
122
151
3
[m /h]
17.8
21.9
26.0
30.0
34.0
40.7
Input power
[kW]
2.47
2.47
2.47
1.99 x 2
1.99 x 2
2.47 x 2
Input current
[A]
4.98
4.98
4.98
3.65 x 2
3.65 x 2
4.98 x 2
Useful head Water flow rate
IN/OUT water connections
Hydraulic kit A in fig. 3 includes a circulation pump (models from 180 to 240 have two pumps in parallel, fig. 4), storage tank with expansion tank, safety valve, air relief valve and discharge tap. The water filter, which is not included in the kit, is in any case available as an accessory. A water filter must be fitted on the inlet piping to protect the heat exchanger and in the event of problems due to blockage of the heat exchanger.
2” - 1 1/4”
STORAGE TANK Model 3
110
130
160
180
210
240
Storage volume
[dm ]
500
500
500
700
700
700
Expansion tank volume
[dm3]
24
24
24
24
24
24
KEY P
pump
VS
air relief valve
EV
VF
on-off valve
VA
safety valve
PD
differential pressure switch
SB
storage tank
VSC
discharge tap
VN
single-acting valve
SE
expansion tank
FA
water filter (optional)
Use, selection and maintenance manual
24
evaporator
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Hydraulic kit B1 Hydraulic kit B1 in fig. 5 is the same as kit A1 except that it has two parallel circulation pumps, one in backup. Three pumps are available for models 180, 200, 240, where the first two are running at all times and the third in backup. The water filter, which is not included in the kit, is in any case available as an accessory (fig. 6). A water filter must be fitted on the inlet piping to protect the heat exchanger and in the event of problems due to blockage of the heat exchanger.
Hydraulic kit A - EGEA NCA 110 - 160 VS
SE VA
water inlet
water outlet
P VF
VF
PD
SB FA
EV uscita acqua
Fig. 3 VSC
Hydraulic kit A - EGEA NCA 180 - 240 VS
SE VA
P VF
water inlet
VF
water outlet PD
SB
VF
P
VF
FA
EV uscita acqua
Fig. 4
VSC
Hydraulic kit B1 - EGEA NCA 110 - 160 3
9)
water inlet
9)
91
91
water outlet 3'
'" 3
Fig. 5
&7
Hydraulic kit B1 - EGEA NCA 180 - 240 9)
1
91
9)
1
91
water outlet
water inlet
7'
'"
Fig. 6
Use, selection and maintenance manual
1
3'
7/
&7
25
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Hydraulic kit A1
Hydraulic kit A1- EGEA NCA 110 - 160 6(
Hydraulic kit A1 in fig. 7 includes a twin circulation water inlet pump, storage tank with expansion tank, safety valve, air relief valve and discharge tap. Three )$ pumps are available for models 180, 200, 240, where the first two are running at all times and the third in backup (fig. Fig. 7 8).The water filter, which is not included in the kit, is in any case available as an accessory. The water filter, which is not included Hydraulic in the kit, is in any case available as an accessory. A water filter must be fitted on the inlet piping to protect the heat exchanger and in the event of problems water inlet due to blockage of the heat exchanger.
74 9$ 9)
6%
9)
96&
91
water outlet 3'
91
3
&7
kit A1- EGEA NCA 180 - 240 6(
74 9$
9)
1
91
7'
1
7/
7'
1
7/
water outlet 3'
6%
)$
The characteristics of pumping units B1 and A1 are almost the same as units B and A and are illustrated in the diagram of fig. 9.
3
96&
Fig. 8
&7
System available pressure
4ZTUFNBWBJMBCMFQSFTTVSF <1B>
25,0
20,0
15,0 240
110-130-160
10,0
180-210
5,0
0,0 10,0
20,0
30,0
40,0
50,0
60,0
70,0
8BUFSNBTTnPX
Storage tank design The ideal total hydraulic volume of the system must be such that the thermal capacity of the water contained in it is sufficient to limit the number of starts per hour of the compressor below the maximum value. The following formula is valid:
V=
43•Pfrig DELTA T
where: - V = minimum volume of water within the system, [l]; - Pfrig = cooling capacity, [kW]; - DELTA T = temperature differential, [°C].
Use, selection and maintenance manual
26
Therefore, if the total volume of the system is below the value calculated above, the machine must be equipped with a storage tank so that its volume, added to that of the system, satisfies the above mentioned report.
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Expansion tank design When the machine is in a closed circuit an expansion tank must be installed. The total volume, Vt, of the diaphragm expansion tank is calculated with the following formula:
Vt =
C•(u2-u1) 1-Pp/Pe
where: - V t = total volume of water in the system, [l]; - C = total capacity of the system (storage, piping, user etc.), [kg]; - u1 = specific volume of the water at the
minimum operating temperature [l/kg]; - u2 = specific volume of the water at the maximum operating temperature [l/kg]; - Pp = absolute pre-charge pressure of the expansion tank, [bar]; - Pe = maximum operating pressure of the system or safety valve setting pressure, [bar]. This table indicates the water's specific volume values at the various temperatures.
T
u
[°C]
[l/kg]
2
1.00003
4
1.00000
6
1.00003
8
1.00012
10
1.00027
12
1.00048
14
1.00073
16
1.00103
18
1.00138
20
1.00177
Operating limits
Maximum outside temperature SUMMER Minimum outside temperature SUMMER
F
FL
MF
MFL
H
HL
[°C]
42
39
39
38
--
--
[°C]
-5
-5
5
5
--
--
Maximum outside temperature WINTER
[°C]
--
--
--
--
18
18
Minimum outside temperature WINTER
[°C]
--
--
--
--
-6
-3
Max. evaporator inlet water temperature
[°C]
18
18
--
--
--
--
Min. evaporator inlet water temperature
[°C]
8
8
--
--
--
--
Max. condenser outlet water temperature
[°C]
--
--
--
--
55
55
Min. condenser outlet water temperature
[°C]
--
--
--
--
27
27
Maximum evaporator inlet/outlet water DT
[°C]
8
8
--
--
--
--
Minimum evaporator inlet/outlet water DT
[°C]
4
4
--
--
--
--
Maximum condenser IN/OUT water DT
[°C]
--
--
--
--
8
8
Minimum condenser IN/OUT water DT
[°C]
--
--
--
--
4
4
Maximum distance between the condenser unit and the inside
[m]
--
--
20
20
--
--
Maximum inlet water pressure
[bar]
3.0
3.0
3.0
3.0
3.0
3.0
Maximum glycol percentage
[%]
30
30
--
--
--
--
In the F, FL versions, equal to -10°C with electronic fan speed regulator.
Use, selection and maintenance manual
27
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Dimensions and weights
70
EGEA NCA 110 - 160 F, MF, H - standard version EGEA NCA 110 F, MF, H - low noise version
70
footprint
Water inlet with hydraulic kit Standard water inlet
242
258
519
2311
866
371
457,5
Water outlet
1208
247,5
3308
Weight variations in relation to the standard(*) MODEL
110
130
160
180
210
240
with desuperheater
[kg]
+ 14
+ 18
+ 18
+ 24
+ 24
+ 24
with hydraulic kit A1
[kg]
+ 28
+ 28
+ 28
+ 39
+ 39
+ 43
with hydraulic kit A2 (**)
[kg]
+ 129
+ 129
+ 129
+ 163
+ 163
+ 167
with hydraulic kit B1
[kg]
+ 41
+ 41
+ 41
+ 56
+ 56
+ 61
with hydraulic kit B2 (**)
[kg]
+ 142
+ 142
+ 142
+ 180
+ 180
+ 185
(*) For standard weight see nominal technical data tables. (*) The weight variation does not take into account the amount of water in the tank.
Use, selection and maintenance manual
28
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 180 - 240 F, MF, H - standard version EGEA NCA 130 - 210 F, MF, H - low noise version
Water inlet with hydraulic kit Standard water inlet
242
257
628
2311
869
414
489
1206
4308
246
Water outlet
Connectors Model
110
130
160
180
210
240
F, FL
2”
2”
2”
DN80
DN80
DN80
H, HL
2”
2”
2”
DN80
DN80
DN80
54 mm 28 mm
54 mm 28 mm
54 mm 28 mm
54 mm 28 mm
54 mm 28 mm
54 mm 28 mm
MF, MFL
IN OUT
Use, selection and maintenance manual
29
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
3000
Minimum operative spaces
1000
0 100
100 0
Use, selection and maintenance manual
30
1000
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
List of pressure equipment - Directive PED 97/23 EC The list of pressure equipment is indicated in the table along with the related module fitted on the EGEA NCA R407C chiller, in accordance with Directive PED 97/23 EC.
COMPONENT
MODULE
COMPRESSOR
D1
Plate heat exchanger
B
Reverse cycle valve
A
Liquid receiver
D1
High pressure switch
B
High pressure side safety valve
B
Low pressure side safety valve
B
Safety The machine has been designed so as to reduce to the minimum the risks for the safety of the people interacting with it. During the design phase, it was not technically possible to completely eliminate the risk causes. Therefore it is imperative to refer to the following instructions.
Access to the unit Access to the unit once it has been installed must only be permitted to qualified operators and technicians. The operator is a person who has been authorised by the owner of the machine to carry out operations on the said machine (in accordance with that indicated in the present manual). The technician is a person authorised by FAST or subordinate
under their own responsibility by a FAST distributor, to carry out operations on the machine. The owner of the machine is the legal representative of the company, entity or individual owner of the system in which the FAST machine is installed. These persons are responsible for the observance of all safety standards indicated in the present manual and the existing law. In the event that access by unauthorised persons to the machine can not be prevented due to the nature of the location in which it is installed, a cordoned area must be defined around the machine and at least 1.5 meters from the external surface, inside of which only operators and technicians are permitted. The operators and technicians must
Use, selection and maintenance manual
31
operate on the machine wearing suitable safety clothing (shoes, gloves, safety helmets, etc) and with suitable tools.
Residual risks The installation, start-up, shutdown and maintenance of the machine must be carried out in accordance with that stipulated in the technical documentation of the product and in such a manner that no hazardous situations are generated. Risks that have not been able to be eliminated during the design phase are indicated in the following table.
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
CONSIDERED PART
RESIDUAL RISK
METHOD
PRECAUTION
Heat exchanger coil
small cuts
contact
avoid contact, use protective gloves
Fan grille and fan
lesions
introduction of pointed objects through the grille while the fan is turning
do not insert objects of any kind through the grille of the fan and do not place objects over the grille
Inside the unit: compressor and delivery pipes
burns
contact
avoid contact, use protective gloves
Inside the unit: metal parts and electrical cables
intoxication, electrocution, severe burns
insulation defect of the power supply cables upstream of the unit's electric panel; live metal parts
suitable electrical protection of the power supply line; maximum care when earthing the metal parts
Outside the unit: area around the unit
intoxication, severe burns
fire due to short circuit or overheating of the power supply line upstream of the unit's electric panel
cable section and power supply line safety system conforming with existing laws
intoxication, severe burns
high evaporation pressure due to the incorrect use of the machine during maintenance (compressors compartment open)
carefully check the evaporation pressure value during maintenance operations
Low pressure safety valve
Receipt, warehousing and handling Receipt and warehousing On receipt of the goods, check that they have not undergone damage and that they correspond with that indicated on the accompanying documents. Possible damage or incomplete delivery must be opportunely signalled. The unit can
be stored in an area protected from weather with temperatures from 20°C to a maximum of +55°C.
Refer to the weights indicated in the tables of the present manual. the machine should ideally be handled packed.
Handling The unit can be handled both by forklift or by crane. Particular attention must be given not to damage the condenser coil during handling.
Use, selection and maintenance manual
32
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Lifting truck
with
The forks of the fork-lift truck must protrude bu at least 50 mm
fork-lift
If a forklift truck is used, make sure it is of adequate capacity and that the forks are at least 1200 mm long. the unit must be lifted by positioning the forks as indicated in the figure. Make sure that the unit is securely balanced.
Lifting crane
with
trolley
Lifting must be carried out in accordance with the diagram below following the indicated instructions. Use a lifting beam or bar, cords of suitable capacity (not chains), 42 mm (1” 1/4) diameter tubes that must be inserted into the holes at the base of the machine; block the ends of the tubes with pegs or split pins making sure that the cord does not slip off. Make sure that the unit is securely balanced. Peg
Peg 42mm diameter tube
Positioning The unit must be installed in accordance with the operative space indicated in the diagrams. The surface on which the unit rests must be flat and sturdy, suitable to support the weight when operating.
structure, the anti-vibration dampers should be fitted into the holes in the base of the unit (rubber, supplied as an optional accessory). Fitting of the antivibration dampers is highlighted in the layout in the diagram.
Anti-vibration dampers In order to avoid the transmission of vibrations to the supporting
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33
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Installation
Hydraulic connections: unit with built-in hydraulic kit The hydraulic connections of the chiller should be made in accordance with the layout illustrated to the side. In particular it is essential a filter on the inlet piping against possible impurities in the water. the non installation of the said filter will result in the decay of the guarantee. The built-in hydraulic kit includes: circulation pump, storage tank, air relief valve, differential pressure switch, safety valve. the piping must be suitable insulated and supported so they do not stress the machine connections.
DEVICES TO BE INSTALLED BY THE CLIENT 3$ .
74
5 ("
'"
Chiller with built-in hydraulic kit
7* '
("
7*
water outlet 34
Hydraulic connections: unit without hydraulic kit
DEVICES TO BE INSTALLED BY THE CLIENT 74
3$ .
74
In addition to that mentioned above, a pump, an insulated storage tank and an expansion tank must also be installed (see figure to the side).
1
5 '"
("
4&
7*
7* 4"
Chiller
'
water inlet
5
. ("
7*
water outlet 34
M
pressure gauge
GA
anti-vibration joint
RS
discharge tap
VS
air relief valve
T
thermometer
P
Pump
FA
water filter
VI
on-off valve
SE
expansion tank
RC
discharge tap
F
external flow switch
SA
storage tank
Electrical connections The dimensional diagrams in the present manual illustrate the position foreseen for the entry of the power supply cables. To access the electric panel and therefore the power supply control board the front upper panel must be dismantled. For the scaling of the power supply line, refer to the power and current values in the enclosed table. The machine's electrical layout is found inside the compressor compartment along with the other supplied documents. Particular attention must be given to the following points:
water inlet
5
.
- the electrical connections must be carried out by qualified personnel; - the power supply cables must be protected upstream by a suitable device in accordance with the present laws against short circuits and overloads; - the section of the cables must be in line with the upstream safety system setting and must take into account all influencing factors (temperature, type of insulation, length etc.); - it is very important that the earthing connections are carried out with the maximum care; - check the type of power supply that could be three-phase or three-
Use, selection and maintenance manual
34
phase with neutral. There are two pairs of terminals in the electric panel control board (free contacts): one is for the remote general alarm and the other is for the remote ON-OFF (see electrical layout). in particular, refer to the supplied electrical layouts for the connections of the condensing unit units to the internal units and the room thermostat.
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Condensing unit The connection lines to the condensing unit unit must be sized so as to favour the return of the oil to the compressor (see layout to the side). For the same reason, suitable siphons are fitted to the inlet line when the evaporator is positioned lower than the condenser. The maximum height permitted between the creation of two successive series of siphons must not be over 4 m.
Condensing unit
> 0,5 %
Hmax = 4 m
> 0,5 %
Evaporator
First start-up or start-up after prolonged standstill
Preliminary electrical, hydraulic and refrigerating controls must be performed before starting the chiller.
Before starting Before starting, check that: – the system is full and the air blown out; – the electrical connections have been carried out correctly; – the line voltage is within the permitted tolerances (±10% of the nominal value);
WARNING: I f p re s e n t , t h e u n i t m u s t b e powered to allow compressors' cover electric heaters to evaporate the refrigerant present in the oil at least 24 hours before starting (or at the end of each prolonged standstill period). If this precaution
Use, selection and maintenance manual
is not carried out serious damage may be inflicted on the compressor and the guarantee will decay.
Start-up of the unit FOR ITALY ONLY Remember that for the units of this series start-up is carried out by the FAST After Sales Service. The start-up must be agreed before hand based on the construction times of the system. Before the FAST After Sales Service intervenes, all operations (electrical and hydraulic connections, filling and blowing out of air) must be completed. Refer to the regulation manual for the setting of all parameters and for detailed information concerning the machine operations and control board.
35
WARNING: make sure that all the indications in the present manual have been carried out before carrying out the controls on the first start-up. Before starting the chiller, check that: • the electrical connections have been carried out correctly and that all terminals have been fully tightened;
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
• the voltage on the terminals is 230 V ± 5% (for units fed with 1 phase) or 400 V ± 5% (for units fed by 3 phases), which can be verified by means of a tester: if the voltage is subject to frequent changes, contact our Technical department for the choice of suitable protections; • there are no leaks of refrigerant, using a leak detector if necessary.
WARNING: Before starting, check that all the unit's panels are in place and fixed with the suitable screws.
Use regulations for R407C gas Refrigerating circuits with cooling gas R407C require particular attention during assembly and maintenance so as to avoid operating irregularities. Therefore it is necessary to: - Avoid topping up with oil different from that already introduced in the compressor. - If there are gas leaks that make the circuits even partially full, do not top up with refrigerant, but completely empty the machine collecting the refrigerant for future disposal, and refill it with the foreseen amount. - In the event of replacement of any part of the refrigerating circuit, do not leave the circuit open for more than 15 minutes. - In particular, if the compressor is replaced complete the installation within the above mentioned time after having removed the rubber plugs. - If empty, do not apply power to the compressor; do not compress the air inside the compressor.
Preliminary controls electric parts
-
the power supply line of the unit is disconnected upstream of the unit. Make sure that the disconnecting device is padlocked or that a suitable notice warning not use is applied to its handle. All operations must be carried out without voltage as follows: - remove the front upper panel; - move the main switch to the “0” position (OFF); - open the door of the electric panel; - make sure that the power supply cables are correctly dimensioned; - make sure that the chiller is earthed; - make sure that the screws that fix the wires to the electrical components inside the panel are tight so as to guarantee a good contact; - close the door of the electric panel; At this point power can be applied to the machine closing the line disconnector and moving the main switch of the machine to the “1” position (ON). Using a voltmeter, check the phase voltage value supplied to the unit. The power supply voltage should be 400 V ± 10%. Determine the average phase voltage (RS+ST+RT)/3 and the percentage difference between each of the phase voltages and this average voltage. The maximum difference must not be higher than 3%. A greater variation will annul the guarantee.
Preliminary controls hydraulic parts
- Check that the connections between the hydraulic connectors of the machine and the piping of the system are correct; - check that the on-off valves of the hydraulic circuit are open; - make sure that the system is full; - blow out the air from the system; - Make sure that the circulation pump is working and that its rotation direction is clockwise (seen in front of the fan cover); - make sure that the water flow rate corresponds to that stipulated, make sure that a constant water flow rate is maintained at all times.
Preliminary controls cooling circuit
EXAMPLE: R-S = 397 V; S-T = 406V; R-T = 395 V average of the values: (397+406+395)/3 = 399.3 V percentage difference: (406 - 397) / 399.3 x 100 = 2.25%
(397 - 395) / 399,3 x 100 = 0.5%
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36
-
Visually control the integrity of the various cooling circuit components. Make sure that the level of the lubricating oil on the compressors is at approx. halfway on the sight glass.
(406 - 395) / 399,3 x 100 = 2.75% Before carrying out the controls in this paragraph, make sure that
-
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Start-up
correct.
Move the main switch on the electric panel to the “ON” position. Proceed as follows depending on the machine model:
Running
- EGEA NCA F-MF: press the “on/ off” key of the microprocessor keyboard (down arrow for 2-3 sec.); make sure that the remote on/off contacts are bridged for heat pump machines; make sure there are no alarms by controlling the display of the keyboard. - EGEA NCA-H: press the “ON/OFF” key of the microprocessor keyboard and select the operating mode (chiller or heat pump) by means of the “MODE” key on the same keyboard; make sure that the remote on/off contacts are bridged; make sure there are no alarms by controlling the display of the keyboard.
Controls during running Check the rotation direction of 3 phase compressors: if the intake pressure does not diminish and the outlet pressure does not increase at the normal values, disconnect the power and invert any of the two phases of the three core input cable and reconnect the power to make sure it was not connected incorrectly: never modify the internal electrical connections otherwise the guarantee will decay.
IMPORTANT NOTE: it is very important to check the compressor rotation direction in the scroll unit. If powered with the incorrect phase sequence they will rotate backwards. In this case they are very noisy and could be damaged: invert the phases immediately. To make a more precise control of the rotation direction, connect a pressure gauge unit by means of the appropriate tapping points and check that the pressures are
The chiller microprocessor control system on the F-H units regulates the cooling capacity of the machine (on/off of the compressor) based on the system's thermal output; control of the inlet and outlet water temperature: the differences between these temperatures must not exceed the maximum limits of approx. 7°C. A greater temperature difference is a symptom of a poor water flow rate (in relation to the nominal value) or presence of air in the system. An external consent (e.g. room thermostat) in the condensing unit unit (MF) commands the start and stop of the compressor.
Starting and stopping Press the “on/off” key on the microprocessor (down arrow for 23 sec.) or open the remote on/off contact. Disconnect the machine on the main switch of the electric panel for long standstill periods.
Winter stop If the hydraulic system has been filled with water it must be discharged at the end of the summer season to avoid the formation of ice during the winter. If the system has been filled with anti-freeze this operation is not necessary. Before the cold weather starts, the concentration of glycol in the mixture must be verified by means of a densimeter and topped up if necessary.
- check the condensate coils. These must be clean to guarantee a good heat exchange. Possible dirt that has built up on their surfaces, due to the movement of the air, must therefore be removed. Remove pieces of paper, leaves etc.. and clean the fins with an air jet. To avoid damaging the aluminium fins, the air jet must be directed at right angles to the coil surface. The cleaning operations must be carried out with the utmost of care because the coil fins are easily damaged (0.12 mm aluminium). If the fins are damaged they must be arranged again by combing them with a special tool. Protective gloves must be worn before starting any operations on the coils because accidental contact with the fins could cause small cuts. - check that the unit power supply cable has not undergone any alterations that could compromise its insulation; - make sure that the screws which fix the wires to the electrical components inside the electric panel are tight so as to guarantee an electrical connection; the same also for the earth connections. - make sure there are no leaks in the hydraulic circuit; - check the inlet and outlet pressure during the running of the compressors. The panels of the compressor housing must be removed and a pressure gauge connected to the tapping points on the refrigerating circuit. This operation must be carried out by qualified personnel. - visual control of the compressors oil level indicator.
Ordinary maintenance Ordinary maintenance consists in simple operations that should be carried out monthly as follows: - check the tightness of the fixing screws of the fans to the grilles and of the grilles to the structure
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Antifreeze protection If the operating surrounding temperature is below 0°C during the standstill period, it is necessary, if the chiller has not been emptied, to add anti-freeze (ethylene glycol) in the percentage indicated in the table so as to avoid the formation of ice. The same also happens if the minimum surrounding operating temperature is over 0°C, if this is lower than 0°C in the standstill periods of winter months. It is also necessary to add a percentage of glycol as indicated in the table, to avoid the formation of ice if the outlet water temperature of the chiller drops below 5°C. After glycol has been added the circulation pump must be operated for at least 30 minutes to avoid stratification. Check the concentration of glycol after each top up and if necessary add more.
Minimum surrounding temperature
Ethylene glycol
[°C]
[% in volume]
<0
10
-5
15
-10
20
-15
30
Minimum water outlet temperature
Ethylene glycol
[°C]
[% in volume]
<5
10
0
15
-5
20
Unit maintenance The EGEA - NCA series chillers have been designed to require low maintenance and to make these operations easy. Below are some simple instructions for correct maintenance of the unit. The maintenance program must, in any case, be carried out by a qualified technician. WARNING: • Use suitable personal protective equipment (PPE) during maintenance operations • Before accessing the unit for maintenance or cleaning operations, make sure the unit is disconnected from the power supply, that the supply can not be switched on again without
•
•
•
•
Use, selection and maintenance manual
the maintenance engineer's knowledge and that the heat exchange coils are off. The upper part of the compressor and the outlet pipes are at high temperatures: take particular care if working close to them. Take particular care when working close to finned coils because the fins are particularly sharp. Do not remove the fan protection grilles before have previously disconnected the power supply inside the machine; do not introduce foreign objects through the protection grille of the fans. After finishing the maintenance
38
operations, make sure that the panels is correctly closed by means of fixing screws. The table below indicates the related monthly maintenance operations of each components indicating the type of control to be carried out. The monthly program is indicative and can vary depending on the working and environmental conditions in which the chiller is operating.
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
MONTHLY MAINTENANCE PROGRAM FANS CONDENSER COIL
• Control the electrical absorption • Control that the fan's motors turn freely and without abnormal noise. Make sure that the bearings do not overheat excessively • Control the condenser coil and if necessary clean it with compressed air or a soft brush
REFRIGERATING CIRCUIT
• Control the condensate and evaporation pressures (by a refrigeration expert) • Control the compressor's current absorption, the outlet pressure and the presence of any strange noises • Control the correct quantity of refrigerant by means of the liquid indicator • Control the calibration of the thermostatic valve (overheating 5 ÷ 8°C) • Check that the oil level indicated in the compressor indicator is not below the minimum • Check that the safety devices activate (pressure switches)
ELECTRICAL CIRCUIT
• Check the electric power supply on all phases • Make sure that the electrical connections are sufficiently tightened
CONTROL
• Check that the control equipment, LEDs and display are functioning
HYDRAULIC CIRCUIT
• Make sure there are no water leaks • Bleed the air from the circuit by means of the appropriate air relief valve • Check the temperature and pressure of the inlet and outlet liquid •Where necessary, ensure that the system is filled with the correct percentage of glycol and that ice has not formed within the hydraulic circuit
Unit disposal The EGEA-NCA series machines have been designed to guarantee continual use. The duration of some main components, such as the fan and compressor, depend on the maintenance they have undergone. If the unit is to be disposed of, the operation must be carried out by specialised refrigeration personnel. The EGEA - NCA series units must be disposed of in accordance with the present laws at the end of its useful working life. If the unit is to be disposed of,
the operation must be carried out by specialised refrigeration personnel.
personnel and sent to a collection centre in accordance with the laws in your country;
The main materials that make up the EGEA - NCA series units are:
• the compressors' lubrication oil is also recovered by specialised personnel and sent to a collection centre in accordance with the laws in your country.
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39
• galvanised sheet steel (panels, fans); • copper (coil pipes, winding of the electric motors); • t h e r e f r i g e ra t i n g g a s i s recovered by specialised
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Cooling circuit layouts EGEA NCA 110 - 160 F VSH
CO HP1 HP2 LV VC VC CP1
CP2 F
VC LV
LP
VSL VC EV VE B1
LI
B2
PD
KEY B1
evaporator liquid inlet probe
LI
liquid indicator
B2
liquid outlet probe (antifreeze)
LP
low pressure switch
CO
condenser
LV
liquid line tap
CP1
scroll type compressor
PD
differential pressure switch
CP2
scroll type compressor
VC
service valve
EV
evaporator
VE
thermostatic expansion valve
F
replaceable cartridge filter drier
VSH
high pressure safety valve
HP1
manual reset high pressure switch
VSL
low pressure safety valve
HP2
manual reset high pressure switch
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40
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 180 - 240 F
CO
LV
VC
VC
CP1
HP1
HP3
HP2
HP4
VSH
VSH
CP2
LV VC VC
CP4
CP3
F
F
VSL
VC
VSL
LP
LV VC
VC
LP
LV VC
EV
LI
VE
B1
B2
VE
LI
PD
KEY B1
evaporator liquid inlet probe
HP3
manual reset high pressure switch
B2
liquid outlet probe (antifreeze)
HP4
manual reset high pressure switch
CO
condenser
LI
liquid indicator
CP1
scroll type compressor
LP
low pressure switch
CP2
scroll type compressor
LV
liquid line tap
CP3
scroll type compressor
PD
differential pressure switch
CP4
scroll type compressor
VC
service valve
EV
evaporator
VE
thermostatic expansion valve
F
replaceable cartridge filter drier
VSH
high pressure safety valve
HP1
manual reset high pressure switch
VSL
low pressure safety valve
HP2
manual reset high pressure switch
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GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 110 - 160 MF
VSH
CO HP1 HP2 LV
VC
VC CP1
CP2 F
LI VC VC LP
V SL
LV
LV
KEY CO
condenser
LP
low pressure switch
CP1
scroll type compressor
LV
tap
CP2
scroll type compressor
LI
liquid indicator
HP1
manual reset high pressure switch
VC
service valve
HP2
manual reset high pressure switch
VSH
high pressure safety valve
F
replaceable cartridge filter drier
VSL
low pressure safety valve
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GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 180 - 240 MF
CO
LV
VC
VC
HP1
HP3
HP2
HP4
VSH
VSH
CP1
CP2
LV VC CP4
CP3
F
VC
F
LI
VSL
VC
VSL
VC
LI
LP
LP VC
VC
LV
LV
LV
LV
KEY CO
condenser
HP4
manual reset high pressure switch
CP1
scroll type compressor
LI
liquid indicator
CP2
scroll type compressor
LP
low pressure switch
CP3
scroll type compressor
LV
tap
CP4
scroll type compressor
VC
service valve
F
replaceable cartridge filter drier
VE
thermostatic expansion valve
HP1
manual reset high pressure switch
VSH
high pressure safety valve
HP2
manual reset high pressure switch
VSL
low pressure safety valve
HP3
manual reset high pressure switch
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GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 110 - 160 H
TP CO
7&)
RV HP1
VU
VSH
LV V C
F
LV
VC LI
HP2 VC CP1
CP2
RL
VU
VC LP VSL
EV
B2
B1
7&'
PD
KEY B1
evaporator liquid inlet probe
LP
low pressure switch
B2
liquid outlet probe (antifreeze)
LV
liquid line tap
CO
condenser
PD
differential pressure switch
CP1
scroll type compressor
RL
liquid receiver
CP2
scroll type compressor
RV
reverse cycle valve
EV
evaporator
VC
service valve
F
replaceable cartridge filter drier
VE F
summer thermostatic expansion valve
HP1
manual reset high pressure switch
VE H
winter thermostatic expansion valve
HP2
manual reset high pressure switch
VSH
high pressure safety valve
LI
liquid indicator
VSL
low pressure safety valve
TP
pressure transducer
VU
single-acting valve
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
EGEA NCA 180 - 240 H
TP
TP
CO
VE H
VE H
RV LI
VC L V
F VC L V
VU
VSH
CP1
RV
HP1
HP3
HP2 VC CP2
HP4
VSL
LV VC
F
LV VC
VC CP3
RL
VU
VU VSH
VC
VC
LP
CP 4
RL
VU VSL
LP EV
VE F
VE F B1
B2
PD
KEY B1
evaporator liquid inlet probe
LI
liquid indicator
B2
liquid outlet probe (antifreeze)
LP
low pressure switch
CO
condenser
LV
liquid line tap
CP1
scroll type compressor
PD
differential pressure switch
CP2
scroll type compressor
RL
liquid receiver
CP3
scroll type compressor
RV
reverse cycle valve
CP4
scroll type compressor
VC
service valve
EV
evaporator
VE F
summer thermostatic expansion valve
F
replaceable cartridge filter drier
VE H
winter thermostatic expansion valve
HP1
manual reset high pressure switch
VSH
high pressure safety valve
HP2
manual reset high pressure switch
VSL
low pressure safety valve
HP3
manual reset high pressure switch
VU
single-acting valve
HP4
manual reset high pressure switch
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45
GB
LI
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Diagnosis and troubleshooting PROBLEM
CAUSE
SYMPTOM
1. Excessive thermal load
- The temperature of the chiller's - Lower the thermal load, by outlet water is over the foreseen lowering either the flow rate or temperature of the inlet water value
2. Excessive surrounding See 1.1. temperature 1. WATER TEMPERATURE OVER THE FORESEEN VALUE
3. Condenser fins blocked
- Clean the condenser's fins - Free the front surface of the condenser that is blocked
5. The fan turns in the See 1.1. wrong direction
- Invert the positions of two of the three phases of the fan
6. Lack of refrigerant in the refrigerating circuit
- Check for leaks of refrigerant (carried out by a refrigeration expert) and eliminate them. - Top up the system (carried out by a refrigeration expert)
1. Lack of refrigerant
performance
- Lower the surrounding temperature below the prescribed limits
4. Front surface of the See 1.1. condenser blocked
2. INSUFFICIENT Cooling
See 1.1.
REMEDY
- Low evaporation pressure - Bubbles in the liquid sight glass
- The refrigeration circuit See 1.6. functions correctly, but with insufficient performance
2. Excessive surrounding See 3.1. temperature
- Avoid the circulation of air on the condenser. Improve the flow of fresh air.
1. Vibrations throughout - The noisiness of the machine is the piping greater than normal
- Suitably brace the piping
3. ABNORMAL
2. Noisy compressor
See 4.1.
- Check and replace if necessary
NOISE
3. Noisy thermostatic valve
See 4.1.
- Check. Add refrigerant if necessary. Replace if necessary.
1. Pressure switch inoperative
- The compressor stops
- Check and replace the pressure switch
2. Machine completely empty
See 6.1.
See 1.6.
4. ACTIVATION OF THE LOW
3. Refrigerant filter blocked
See 6.1.
- Check and replace the filter
PRESSURE SWITCH
4. Thermostatic valve non functioning correctly
See 6.1.
- Check, clean and if necessary replace it
5. Surrounding temperature too low
See 6.1.
- Install the condensate control kit.
continue...
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
PROBLEM
5. ACTIVATION OF THE HIGH PRESSURE SWITCH
6. COMPRESSOR
CAUSE
SYMPTOM
1. One or more fans did not start
- The compressor stops - Activation of the general alarm relay
2. Pressure switch inoperative
See 5.1.
- Check and replace the pressure switch
3. Excessive refrigerant
See 5.1.
- Discharge the excessive gas
4. Presence of non condensible gas in the refrigerating circuit
See 5.1.
- Fill the circuit again after having emptied the system and created a vacuum
5. Insufficient air to the condenser coil
See 5.1.
- See 1.3, 1.4, 1.5
6. Refrigerant filter blocked
See 5.1.
- Check and replace the filter
7. Excessive surrounding temperature
See 5.1.
- See 1.2
8. Circulation of hot air due to incorrect installation
- Condenser coil outlet air - Eliminate the cause of the temperature over the maximum circulation respecting the minimum values distances from a wall as indicated in the dimensional diagram or prevent the condenser coils from coming into contact with hot air - The compressor does not start
- Replace the compressor
2. A safety device does not give its consent
- See 7.1
- See point 5 and 6
3. Defective connection or contacts open
- See 7.1
- Check the voltage and close the contact
4. Power circuit open
- See 7.1
- Check the cause of the safety devices intervention, close the automatic of the compressor
5. Compressor's contactor de-energized
- See 7.1
- Check the voltage at the safety device terminals. Close the automatic of the compressor
IRREGULARITIES
VALVE OPERATING IRREGULARITY
8. FILTER DRIER
- Repair or replace the fan/s
1. Defective compressor
OPERATING
7. THERMOSTATIC
REMEDY
6. Compressor's contactor defective
- The compressor starts and stops
1. Thermostatic expansion valve too closed: excessive overheating of the evaporator outlet gas
- Compressor too hot
- Open the thermostatic valve to reduce overheating
2. Thermostatic expansion valve too open: the system functions with overheating too low. Return of liquid to the compressor
- Compressor too cold and noisy
- Close the thermostatic valve to increase overheating
3. Defective thermostatic valve: bulb unloaded or stem blocked
- Low evaporation pressure
1. Filter drier chocked
OPERATING IRREGULARITY
Use, selection and maintenance manual
- Compressor's inlet piping frosted - Bubbles in the flow indicator - Piping of the liquid colder at the filter drier outlet
47
- Check and replace if necessary
- Replace the valve
- Clean or replace the filter
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Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Alarms table
Alarms list
Type alarm
Reset
Compr.
Pump
Fan
Resist.
Valve
Alarm
Supervisor variable
Supervisor variable description
Variable type
HP1
High pressure
Depends on P05
OFF C1-2
-
ON(60”)
-
-
ON
-
31 (R)
Circuit 1 alarm
Digital
HP2
High pressure
Depends on P05
OFF C3-4
-
ON(60”)
-
-
ON
-
32 (R)
Circuit 2 alarm
Digital
LP1
Low pressure
Depends on P05
OFF C1-2
-
OFF 1
-
-
ON
-
31 (R)
Circuit 1 alarm
Digital
LP2
Low pressure
Depends on P05
OFF C3-4
-
OFF 2
-
-
ON
-
32 (R)
Circuit 2 alarm
Digital
TP
Main thermal circuit breaker
Depends on P08
OFF
OFF
OFF
-
-
ON
-
35 (R)
General alarm
Digital
tC1
Circuit 1 thermal circuit breaker
Depends on P08
OFF C1-2
-
OFF 1
-
-
ON
-
31 (R)
Circuit 1 alarm
Digital
tC2
Circuit 2 thermal circuit breaker
Depends on P08
OFF C3-4
-
OFF 2
-
-
ON
-
32 (R)
Circuit 2 alarm
Digital
LA
Warning
Depends on P08
-
-
-
-
-
ON*
ON
40 (R)
General warning
Digital
FL
Flow switch alarm
Depends on P08
OFF
OFF
OFF
-
-
ON
-
35 (R)
General alarm
Digital
E1
Alarm probe B1
Automatic
OFF
OFF
OFF
OFF
-
ON
-
36 (R)
Probes alarm
Digital
E2
Alarm probe B2
Automatic
OFF
OFF
OFF
OFF
-
ON
-
36 (R)
Probes alarm
Digital
E3*
Alarm probe B3
Automatic
OFF
OFF
OFF
OFF
-
ON
-
36 (R)
Probes alarm
Digital
E4*
Alarm probe B4
Automatic
OFF
OFF
OFF
OFF
-
ON
-
36 (R)
Probes alarm
Digital
E8*
Alarm probe B8
Automatic
OFF
OFF
OFF
OFF
-
ON
-
36 (R)
Probes alarm
Digital
Hc1-4
Time warning C1-4
Automatic
-
-
-
-
-
-
ON
37 (R)
Compressor warning
Digital
EPr
Err. EEPROM operating
Automatic
-
-
-
-
-
-
ON
40 (R)
General warning
Digital
EPb
Err. EEPROM on starting
Automatic
OFF
OFF
OFF
OFF
OFF
OFF
OFF
35 (R)
General alarm
Digital
ESP
Expansion error
Automatic
OFF
OFF
OFF
OFF
OFF
-
-
35 (R)
General alarm
Digital
EL1-2
Zero cross
Automatic
-
-
100%
-
-
ON*
ON
42 (R)
Fans warning
Digital
dF1-2
Defrosting error
Digital
Automatic
-
-
-
-
-
-
ON
40 (R)
General warning
d1-2
Defrost activation of concerned circuit
-
-
-
-
-
-
-
-
-
Warning on display
-
A1
Circuit 1 ice alarm
Depends on P05
OFF C1-2
-
OFF 1
-
-
ON
-
31 (R)
Circuit 1 alarm
Digital
continue... Use, selection and maintenance manual
48
GB
Water chillers, heat pumps and condensing units - EGEA - NCA R407C 0705-6180683-rev.1
Alarms list
Supervisor variable
Supervisor variable description
Variable type
-
32 (R)
Circuit 2 alarm
Digital
ON*
ON
41 (R)
Temperature warning
Digital
-
-
ON
40 (R)
General warning
Digital
OFF
-
-
ON
40 (R)
General warning
Digital
-
-
-
-
ON
40 (R)
General warning
Digital
OFF
OFF
OFF
OFF
OFF
35 (R)
General warning
Digital
Alarm type
Reset
Compr.
Pump
Fan
Resist.
Valve
Alarm
A2
Circuit 2 ice alarm
Depends on P05
OFF C3-4
-
OFF 2
-
-
ON
Ht
High temperature
Automatic
-
-
-
-
-
AHt
System start high temperature
Automatic
OFF
-
OFF
OFF
ALt
System start low temperature
Automatic
OFF
-
OFF
ELS
Low power supply voltage
Automatic
-
-
EHS
High power supply voltage
Automatic
OFF
OFF
NOTE: The "Warning" is different from the "Alarm" relay in as much that it is only activated in the event of warnings, being all warnings that do not require the direct intervention on the machine, and the alarm bell is not shown on the display.
KEY * = if the probe is set to compensate in the event of failure, the unit continues to operate. P05 = Alarms reset (equal to 0 = manual) P08 = Digital input selection (equal to 2 = flow switch on auto reset) ON* = if the expansion card is not present.
Use, selection and maintenance manual
49
GB
NOTE
NOTE
0705-6180683-rev.1
Manuale stampato su carta riciclata. Manual printed on recycled paper.
I dati tecnici riportati sulla seguente documentazione non sono impegnativi. FAST si riserva la facoltà di apportare in qualsiasi momento tutte le modifiche ritenute necessarie per il miglioramento del prodotto Technical data shown in this booklet are not binding. FAST S.p.A. shall have the right to introduce at any time whatever modifications deemed necessary to the improvement of the product.
FAST S.p.A. TRATTAMENTO DELL'ARIA 35044 Montagnana (PD) - Italy Via Luppia Alberi, 170 Tel. (+39) 0429 806311 - Fax 0429 806340 E-mail: [email protected] http://www.fastaer.com
