Transcript
TECHNICAL BULLETIN
Excellence Without Compromise
EWC R
TB 117
CONTROLS INC.
Models EWC STMS 2A & 3A Leave this bulletin on the job site
The STMS control panel will interface with single stage or two stage gas or oil fired furnaces and boilers, with electric air conditioning systems, or two stage heat, single stage cool heat pumps.
ZONE 3 MOTOR SW3OPEN
EWC-STMS-2A Control Panel K5
Z5
Z6
C5
C6
K6
EWC-STMS-3A Control Panel K3
Z3
D15
C3
D16
ZONE 3 T'STAT
R3
C W2 Y2 Y1 W1 R
D18
CLOSED
D14 D17
K6
D13
K5
Z6 Z5 C6
ZONE 2 MOTOR
M6 M4 M2 M1
SW2 OPEN
K2
D7
D11
Z2
D12
D8
D9
Z1
D3 D4
C1
ZONE 1 MOTOR
M6 M4 M2 M1
SW1 OPEN K4
CLOSED
R2
D2
D6
D1
D5
K7
Z7 C7
CB1
Z8
D22
C8
D21 D19 D20
1
D32
SYSTEM
K11
B O HP E W2 W1 Y2 Y1 GC R GHC
Z11
D31
C11
D33
C W1 Y1 HP Y2 W2 R O E G
D34 D30
J1 K10
Z10
D29
C10
D27 D28 D26
K9
Z9 C9
D25 D23 D24
D11 D7
K2
CLOSED
K1
CAUTION PLEASE read all instructions carefully before starting the installation procedures. DO NOT connect to voltages above 30 VAC.
ADDITIONAL { ZONE PANEL
W2 Y2 O R C + -
Z1 C1
D3 D4
R1
D6 D5
CLOSED
D2
Z7
D1
C7
K7
ZONE 1 T-STAT
C W1 Y1 HP Y2 W2 R O E G
K4 Z4
24V T'FORMER
C4
D22 D21
CB1
2
C W2 Y2 Y1 W1 R
D10 D9
D8
M6 M4 M2 M1
ZONE 2 T'STAT
R2
D12
Z2 C2
ZONE 1 SW1 MOTOR OPEN
ZONE 1 T-STAT
Z4
K8
M6 M4 M2 M1
R1
C4
24V T'FORMER
2
C W2 Y2 Y1 W1 R
D10
C5
ZONE 2 MOTOR SW2OPEN
ZONE 2 T'STAT
C2
CLOSED
K1
This technical bulletin contains information and wiring diagrams for the ULTRA ZONE, STMS-2A and 3A control panels. Please read and familiarize yourself with the proper wiring diagrams before you start the installation. We have compiled these diagrams based on the most frequently asked questions regarding the wiring of these panels. The STMS panel will interface with many HVAC systems. If your particular application does not match any of the supplied diagrams, call the technical support hot line. If the system does not operate properly or you experience trouble during the installation, check this bulletin against the field wiring for shorts or mis-wiring. If the problem cannot be resolved, then call the technical support hot line.
M6 M4 M2 M1
K8
D19 Z8 D20
1
C8
SYSTEM
B O HP E W2 W1 Y2 Y1 GC R GHC
D32 D31
K11
Z11
D33
C11
D34 D30
J1 K10
Z10 C10
D29 D27 D28 D26
K9
Z9 C9
D25 D23 D24
CAUTION PLEASE read all instructions carefully before starting the installation procedures. DO NOT connect to voltages above 30 VAC.
ADDITIONAL { ZONE PANEL
W2 Y2 O R C + -
R
R
CONTROLS INC. Englishtown, NJ
CONTROLS INC. Englishtown, NJ
CONTROL SYSTEM
EWC-STMS-2A
CONTROL SYSTEM
EWC-STMS-3A
Warning: Control panel does not have any built in time delays. The HVAC system must have its own or, installer provided time delay relays to prevent system short cycling.
TABLE OF CONTENTS PAGE
The heating and cooling system changeover, 1 Introduction and Specifications emergency heat, and fan operations are 2 Two stage systems controlled by the subbase on the zone 1 3 Heat pump systems thermostat. When using thermostats with manual changeover switches 4 Two stage wiring diagrams (HEAT-OFF-COOL) on zones other than zone 1, 5 & 6 Heat pump wiring diagrams make sure all zones are in the same mode at 7 Expansion panel wiring all times. If zone 1 system mode is changed, then the other zones should be changed as 8 & 9 Transformer and damper wiring well, for proper operation. Auto changeover 10 & 11 Service notes thermostats on other zones will eliminate the 12 Diagram overview need for manual changeover. Most battery powered or AC powered thermostats can be SPECIFICATIONS used and wired directly to the panel. For even greater comfort and energy savings, Power Requirements: 24volt 60 Hz 40VA setback thermostats can be wired to any or all Wiring Connections: Screw terminal blocks for thermostat gauge wire. zones. Mounting: Mounts with 4 screws and mollies (included). Panel Dimensions: Length: 11 5/8" (295mm); Width: 9" (229mm); Depth: 1 1/4" (32mm).
Warning: These panels are designed for use with 24 volts AC power. Do not use any other voltage! Use caution to avoid electric shock or equipment damage. All wiring should be done in accordance with local and national codes. P/N 090375A0117 REV E 16 APR 2001
.
Copyright EWC Controls C 1999-2003 All Rights Reserved
EWC Controls Inc. 385 Highway 33
. Englishtown, NJ 07726 . 800-526-4048 . 732-446-3110 . FAX
732-446-5362
TWO STAGE SYSTEMS OPERATION
WIRING
CONVENTIONAL TWO STAGE SYSTEM
SYSTEM
The mode of operation is determined by the position of the system selector switch on the subbase of the zone 1 thermostat. Switching subbases are not required on the other zones.
Wiring a 2 stage HVAC system to the EWC STMS control panel is similar to wiring directly to a thermostat subbase. The following terminals are on the system terminal block. R - To hot side of system transformer. B - Unused. O - Unused. Y1/Y2 - To compressor relays first and second stage. W1/W2 - To heat relays first and second stage. E - Unused. GC - To fan relay if cycled in cool mode only. GHC- To fan relay if cycled in cool and heat mode. HP- Unused.
HEAT MODE The panel will be in the heat mode when the zone 1 thermostat subbase is in either the "HEAT" position or the "OFF" position. This allows any zone to call for heat, except zone 1 when its subbase is in the off position. When a zone calls for heat, the panel closes the circuit from the system "R" terminal to the system "W1" terminal, energizing the first stage heat relay. Also in the heat mode, system terminal "R" is in constant make to system "B" terminal. If any zone is equipped with a 2 stage thermostat, when the thermostat makes on the second stage, the panel will also make the system terminal "R" to system "W2" to energize the second stage heat relay.
COOL MODE The panel is in the cool mode when the zone 1 thermostat subbase is switched to the cool position. In this mode any zone can call for cooling. When a zone calls for cooling, the panel closes the circuit from the system "R" terminal to the system "Y1" and "G" terminals, energizing the first stage cool relay, and the fan relay. Also in the cool mode, the system "R" terminal is in constant make to the system "O" terminal. If any zone is equipped with a 2 stage thermostat, when the thermostat makes on the second stage, the panel will also make system "R" terminal to the system "Y2" terminal, to energize the second stage compressor relay.
OFF MODE There is no true off mode. When the zone 1 thermostat is in the off position, the remaining zones can still call for heat. Each zone thermostat must have its own switching subbase, with "OFF" position, in order to turn off each individual zone.
FAN Manual control or continuous operation of the fan is controlled by the position of the fan switch on the zone 1 thermostat subbase only. The remaining zones are not capable of individual fan control. The STMS system terminal block provides two fan control connections, "GC" and "GHC". The "GC" terminal will energize the fan relay in the cool mode only. The "GHC" terminal will energize the fan relay in both heating and cooling modes. Used for electric heat and some hydronic heat applications.
2
ZONE DAMPER MOTORS Use 3 conductor wire from each zone damper motor terminal to the corresponding terminals on the STMS or STEX control panels. Consult wiring diagrams for damper types. NOTE: When operating more than one damper motor per zone, consult specific wiring diagrams. When any zone is calling, that damper will be in the open position. Any zone not calling will be in the closed position. When all zones are satisfied, the position of the damper is controlled by the "OPEN/CLOSED" switches on the panel. OPEN POSITION - The damper will drive open when all zones are satisfied. CLOSED POSITION - The damper will drive closed when all zones are satisfied except with SMD, BMD, IMD dampers, the last zone to satisfy will always remain open regardless of switch position.
THERMOSTATS ZONE 1 Thermostat wiring depends on the type of thermostats used. The following is a description and the requirements of the terminals on the zone 1 thermostat terminal block. R- Hot side of 24 volts to thermostat. C- Common side of 24 volts to thermostat. If needed. Y1- Must be made to "R" on a call for 1st stage cooling. Y2- Must be made to "R" on a call for 2nd stage cooling. HP- Unused in two stage operation. O- Must be made to "R" continuously when system switch is in the cool position. E- Unused in two stage operation. W1- Must be made to "R" on a call for 1st stage heating. W2- Must be made to "R" on a call for 2nd stage heating. G- Must be made continuously when fan switch is in the "ON" position. ZONE 2/3 Zone 2/3 thermostat is a simple single stage heat-cool thermostat or a 2 stage heat and 2 stage cool depending on requirements of a particular zone. The following is a description and the requirements of the terminals on the zone 2/3 thermostat R- High side of 24 Volts to thermostat. C- Low side of 24 Volts to thermostat. If needed Y1- Must be made to "R" on a call for cooling. Y2- Must be made to Y1 on a call for second stage cooling. W1- Must be made to "R" on a call for heat. W2- Must be made to "W1" on a call for second stage heat.
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
HEAT PUMP SYSTEM OPERATION HEAT PUMP SYSTEM The mode of operation of the heat pump is determined by the position of the system selector switch on the subbase of the zone 1 thermostat. Switching subbases are not required on the other zones.
HEAT MODE The panel will be in the heat mode when the zone 1 thermostat subbase is in either the "HEAT" position or the "OFF" position.This allows any zone to call for heat, except zone 1 when its subbase is in off position. When a zone calls for heat, the panel closes the circuit from the system "R" terminal to the system "HP", and "G" terminals, turning on the compressor and fan. Also in the heat mode, system terminal "R" is in constant make to system "B" terminal. Terminal "B" is used to operate a reversing valve that is energized in the heat mode. If any zone is equipped with a 2 stage thermostat, when the thermostat makes on the second stage, the panel will also make system "HP" to system "W2" to energize the second stage or auxilliary heat relay.
EMERGENCY HEAT MODE This mode is activated by putting the zone 1 thermostat subbase in the emergency heat position. In this mode the compressor is disabled. When a zone calls for heat, the circuit is closed from the system "R" terminal to the system "E" and "G" terminals. The "E" terminal is used to energize a separate emergency or backup heat relay. If any zone is equipped with a 2 stage thermostat, when the thermostat makes on the second stage, the panel will also make system "E" terminal to system "W2" terminal. It may be the same heat source as the emergency heat.
COOL MODE The panel is in the cool mode when the zone 1 thermostat subbase is switched to the cool position. In this mode any zone can call for cooling. When a zone calls for cooling, the panel closes the circuit from the system "R" terminal to the system "HP", and "G" terminals, turning on the compressor and the fan. Also in the cool mode, the system "R" terminal is in constant make to the to the system "O" terminal. Terminal "O" is used to operate a reversing valve that is energized in the cool mode.
OFF MODE There is no true off mode. When the zone 1 thermostat is in the off position, the remaining zones can still call for heat. Each zone thermostat must have its own switching subbase, with "OFF" position, in order to turn off each individual zone.
FAN The operation of the fan is controlled by the position of the fan switch on the zone 1 thermostat subbase only. The remaining zones are not capable of individual fan control. The STMS system terminal block provides two fan control connections, "GC" and "GHC". The "GC" terminal will energize the fan relay in the cool mode only. The "GHC" terminal will energize the fan relay in both heating and cooling modes. The Heat Pump fan relay should be connected to GHC terminal.
WIRING HEAT PUMP Wiring the heat pump to the EWC STMS control panel is similar to wiring the heat pump to a thermostat subbase. The following terminals are on the system terminal block. R - To hot side of heat pump system transformer. B - To reversing valve if energized in heat mode. O - To reversing valve if energized in cool mode. Y1/Y2 - Unused. W2 - 2 second stage heat relay. E - To emergency heat or backup heat relay. GC - Unused. GHC- To fan relay, cycled in cool and heat mode. HP- To compressor relay in heat pump mode. W1- Unused.
ZONE DAMPER MOTORS Use 3 conductor wire from each zone damper motor terminal to the corresponding terminals on the STMS or STEX control panels. Consult wiring diagrams for damper types. NOTE: When operating more than one damper motor per zone, consult specific wiring diagrams. When any zone is calling, that damper will be in the open . position. Any zone not calling will be in the closed position. When all zones are satisfied, the position of the damper is controlled by the "OPEN/CLOSED" switches. OPEN POSITION - The damper will drive open when all zones are satisfied. CLOSED POSITION - The damper will drive closed when all zones are satisfied except with SMD, BMD, IMD dampers, the last zone to satisfy will always remain open regardless of switch position.
THERMOSTATS ZONE 1 Thermostat wiring depends on the type of thermostats used. The following is a description and the requirements of the terminals on the zone 1 thermostat terminal block. R- Hot side of 24 volts to thermostat. C- Common side of 24 volts to thermostat. If needed. HP- Must be made to "R" on a call for heat or cool. O- Must be made to "R" continuously when system switch is in the cool position. E- Must be made to "R" continuously when system switch is in emergency heat position. W2- Must be made to "R" on a call for second stage heat when system switch is in either heat or emergency heat. G- Must be made continuously when fan switch is in the "ON" position. ZONE 2/3 Zone 2/3 thermostat is a simple single stage heat-cool thermostat or a 2 stage heat and 1 stage cool depending on requirements of a particular zone. The following is a description and the requirements of the terminals on the zone 2/3 thermostat R- High side of 24 Volts to thermostat. C- Low side of 24 Volts to thermostat. If needed Y1- Must be made to "R" on a call for cooling. W1- Must be made to "R" on a call for heat. W2- Must be made to "W1" on a call for second stage heat.
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
3
2 Stage Heat/Cool Thermostat and System Wiring
WIRING DIAGRAM #1 Two stage heating and cooling using EWT-2S & EWT-2SM Thermostats On STMS-3A Panel Wire Zone 3 same as Zone 2
WIRING DIAGRAM #2
EWT-2S ZONE 2 THERMOSTAT HEAT
. . . . 50
60
70
. . . . 80
50
60
70
COOL
80
50 60 70 80
. . . .
Model T8624 ZONE THERMOSTAT
W2
Y2
Y1
C
ZONE 2 T-STAT
C W2 Y2 Y1 W1 R
. . . . 50
60
70
Room
Fan
i
Auto
W2 Y2 Y1 W1 R
RC O
G
B
OT OT
C W2 Y2 Y1 W1 R
EWT-2SM ZONE 1 THERMOSTAT HEAT
o
68
Heat
W1 RC RH
ZONE 2 T-STAT
AM
10:30 Mon Wake System Heat
{
EWC-STMS-2A PANEL
Two stage heating and cooling using T8624 programmable digital thermostats On STMS-3A Panel Wire Zone 3 same as Zone 2 EWC-STMS-2A/3A PANEL
. . . .
80
50
60
70
80
Model T8624 ZONE THERMOSTAT
COOL
10:30
AM
68
o
Room
Heat Mon Wake System Heat
FAN
ZONE 1 T-STAT
AUTO ON
HEAT OFF COOL
W1 Y1 Y2 W2 RC RH
O
EWTZONE 2 THERMOSTAT
2
G
WIRING DIAGRAM #3
W1 Y1 Y2 W2 R
RC O
G
B
OT OT
WIRING DIAGRAM #4 EWC-STMS-2A/3A controlling a conventional 2 stage heat and 2 stage cool system
70
80
80
50
60
70
EWC-STMS-2A PANEL
60 50
Y
W
R
ZONE 2 T-STAT
SYSTEM C W2 Y2 Y1 W1 R
i
Auto
C W1 Y1 HP Y2 W2 R O E G
B
C W1 Y1 HP Y2 W2 R O E G
Two stage heating and cooling using EWT-2SM T'stat on Zone 1 & single stage heating and cooling using EWT T'stat on Zone 2
C
ZONE 1 T-STAT
Fan
{
. 60. 70 . 80 .
50
W2
EWT-2SM ZONE 1 THERMOSTAT HEAT
60
70
. . . .
80
24V T'FORMER
HEAT 2 RELAY
. . . . 50
50
60
70
80
EWC-STMS-2A/3A PANEL
W1
2
COOL
CB1 1
. 60. 70 . 80 .
50
HEAT 1 RELAY
Y2 FAN AUTO ON
ZONE 1 T-STAT
HEAT OFF COOL
W1 Y1 Y2 W2 RC RH
C W1 Y1 HP Y2 W2 R O E G
O
G
SYSTEM
COOL 2 RELAY
B
Y1
1 COOL 1 RELAY
G
FAN RELAY
R
1 Field installed jumper.
C TRANSFORMER
2 Some Zones may not require 2 stage thermostats. Small Zones should NOT be able to bring on second stage heat (W2) or cooling (Y2).
4
B O HP E W2 W1 Y2 Y1 GC R GHC
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
Connect this lead to this terminal to cycle fan in both heating and cooling
E-Mail-
[email protected]
J1
WIRING DIAGRAM #6
WIRING DIAGRAM #5 EWC-STMS-2A/3A Heat Pump System 2 stage heat single stage cool using EWT-HPH & EWT-2S thermostats On STMS-3A Panel Wire Zone 3 same as Zone 2
Heat Pump Two stage heating and single stage cooling using T8011 Digital Thermostats On STMS-3A Panel Wire Zone 3 Same as Zone 2
EWT-2S ZONE THERMOSTAT HEAT
. . . . 60
50
70
50
60
70
Model T8011 ZONE THERMOSTAT
Hold Em. Ht. Aux. Ht.
. . . .
80
80
Fr
72
FAN
SYSTEM
Auto On
Cool Off Heat Em. Ht.
C
EWC-STMS-2A PANEL
Y
W1
E
ZONE 2 T-STAT W2
Y2
Y1
W2
R
O
1
B
L
G
2
C W2 Y2 Y1 W1 R
W1 RC RH
1 ZONE 2 T-STAT
C W2 Y2 Y1 W1 R
Select
o
EWC-STMS-2A PANEL
. . . .
Model T8011 ZONE THERMOSTAT
EWT-HPH ZONE THERMOSTAT . . . . 50
60
70
ZONE 1 T-STAT
EM. HEAT AUX. HEAT
C W1 Y1 HP Y2 W2 R O E G
. . . .
HEAT PUMP THERMOSTAT
C W1 Y1 HP Y2 W2 R O E G
FAN AUTO ON
X
Y
E
Hold Em. Ht. Aux. Ht.
80
50 60 70 80
ZONE 1 T-STAT
EM. HEAT HEAT OFF COOL
W2
R
O
B
L
G
1
4:31pm
Fr
72
Select
o
FAN
SYSTEM
Auto On
Cool Off Heat Em. Ht.
C
W1 Y1
E
W2
R
O
L
G
B
1
Notes: 1. Field installed jumper. 2. When using T8011 T'STAT on Zones 2/3 switch should be in same position as Zone 1 T'STAT. If not panel will ignor its call.
1. Field installed jumper
WIRING DIAGRAM #7
WIRING DIAGRAM #8
Heat Pump Two stage heating and single stage cooling using T8011 & T8624 Digital Thermostats On STMS-3A Panel Wire Zone 3 same as Zone 2
EWC-STMS-2A/3A controlling a heat pump 2 stage heat and single stage cool with a single source of backup heat 3 Model T8624 ZONE THERMOSTAT
EWC-STMS-2A PANEL
10:30
o
68
AM
Room
1. Connect reversing valve wire to terminal "B" for heat pumps that energize the reversing valve on heat cycle. "O" for heat pumps that energize the reversing valve in cool cycle.
Heat Mon Wake System Heat
C
ZONE 2 T-STAT
4:31pm
COOL
50 60 70 80
Y2 W2 Y1 W1
Fan
{
2
Heat Pump Thermostat and System Wiring
i
Auto
R RC
B
O
G
OT OT
2. Field installed jumper.
1
C W2 Y2 Y1 W1 R
EWC-STMS-2A/3A PANEL 24V T'FORMER
SYSTEM 2 Model T8011 ZONE THERMOSTAT
2 CB1
RV
1 ZONE 1 T-STAT
Hold Em. Ht. Aux. Ht.
C W1 Y1 HP Y2 W2 R O E G
4:31pm
Fr
72
Select
REVERSING VALVE
o
Y
SYSTEM
1 FAN
SYSTEM
Auto On
Cool Off Heat Em. Ht.
{
COMPRESSOR RELAY
W2 C
W1 Y1
E
W2
R
O
L
G
B
2 1
SECOND STAGE HEAT RELAY
R
C TRANSFORMER
G
Notes: 1. Field installed jumper. 2. DO NOT use auto change over mode on Zone 1. 3. Use Zone 2 Thermostat in autochange over mode.
B O HP E W2 W1 Y2 Y1 GC R GHC
J1
FAN RELAY
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
5
2
Heat Pump System Wiring
WIRING DIAGRAM #10
WIRING DIAGRAM #9
EWC-STMS-2A/3A controlling a heat pump 2 stage heat and single stage cool with outdoor low temperature compressor lockout.
EWC-STMS-2A/3A controlling a heat pump 2 stage heat and single stage cool with emergency heat.
1. Connect reversing valve wire to terminal "B" for heat pumps that energize the reversing valve on heat cycle. "O" for heat pumps that energize the reversing valve in cool cycle.
1. Connect reversing valve wire to terminal "B" for heat pumps that energize the reversing valve on heat cycle. "O" for heat pumps that energize the reversing valve in cool cycle.
2. Outdoor temperature control [ ODTC ] Field installed.
EWC-STMS-2A/3A PANEL
SYSTEM
EWC-STMS-2A/3A PANEL
SYSTEM
RV
RV
24V T'FORMER REVERSING VALVE
2 CB1
Y
2
2
CB1
Y
1
1
COMPRESSOR RELAY
COMPRESSOR RELAY
E
E
SYSTEM
1
{
EMERGENCY HEAT RELAY
W2
SECOND STAGE HEAT RELAY
R
C TRANSFORMER
G
SYSTEM
1
B O HP E W2 W1 Y2 Y1 GC R GHC
{
EMERGENCY HEAT RELAY
J1
B O HP E W2 W1 Y2 Y1 GC R GHC
W2
SECOND STAGE HEAT RELAY
R
C TRANSFORMER
G
FAN RELAY
J1
FAN RELAY
WIRING DIAGRAM #12
WIRING DIAGRAM #11
T
T
B
R
O
B
O
Y
DUCT SENSOR
HEAT PUMP O.D. SECTION
Y
OUTDOOR
W R
R
FURNACE
EWC-STMS-2A/3A PANEL
B
FAN RELAY
8
FAN
G THERMOSTAT
R
Y
G W O
ODT 1
B R
B
XFMR
BR
T
OR
O
BR/X2 or BW
LIMIT
CONTROL BOARD FOSSIL FUEL KIT
24V T'FORMER 2
NOTES: 4. THIS LEAD REQUIRED ONLY IF FURNACE NEEDS "Y" TO DELIVER FULL COOLING AIRFLOW. 5. MAKE THIS JUMPER CONNECTION ONLY IF THE FURNACE NEEDS FAN ENABLE SIGNAL FOR HEATING OPERATION. 6. THIS JUMPER REQUIRED ONLY FOR 2 STAGE FURNACES. 7. BONNET THERMOSTAT MODEL TAYPLUS101A REQUIRED FOR OIL FURNACE APPLICATIONS. 8. TO LOCK OUT GAS FURNACE AT OUTDOOR TEMPERATURES ABOVE ODT SET POINT DO NOT CONNECT WIRE TO THERMOSTAT TERMINAL "W" AND TERMINAL "1" ON ODT.
OUTDOOR SECTION
OUTDOOR TEMPERATURE SENSOR
EWC-STMS-2A/3A PANEL
EWC-STMS-2A/3A controlling 2 stage heat/1 stage cool Heat Pump system using a Trane add on Fossil Fuel kit P/N TAYPLUS 103A
EWC-STMS-2A/3A controlling Heat Pump system with a Intercity Products Fossil Fuel kit P/N AXA 001 RKAI
FURNACE CONTROL
24V T'FORMER
ODTC
REVERSING VALVE
24V T'FORMER
2
X2
YL
Y
RD
R
BL
B
3
CB1 1
SYSTEM B O HP E W2 W1 Y2 Y1 GC R GHC
J1
2 CB1 1
3 PH ONLY
TRANSFORMER 24V 2
1
1. Field installed jumper. 2. No connection this terminal
6
}
W3 TO POWER SUPPLY PER LOCAL CODES
5
G3
SYSTEM B O HP E W2 W1 Y2 Y1 GC R GHC
FURNACE G J1
W1
KI
G
B
KI-3
X2
KI-1
7 6 BT
W2
X3
R
W1
B
KI-2
Y3
Y Y2
TDR-1
Y1
3 PH ONLY
}
TO POWER SUPPLY PER LOCAL CODES
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
4
TAYPLUS 103A
E-Mail-
[email protected]
TDR
Expansion Panel Wiring EWC-STEX- 4B-Expansion Panel Z4
ZONE D MOTOR
M6 M4 M2 M1
K4 OPEN
2
CLOSED
D22
D19
D21
R4
C8
D2
D3
D27
D25
D28
D26
TO MAIN CONTROL PANEL
+
-
CONTROL SYSTEM
C R OW Y 2 2
EWC-STEX- 4B-Expansion Panel ZONE D MOTOR
M6 M4 M2 M1
K4 OPEN
CLOSED
2AG 3AMP SLO-BLO
1
SPARE
C4
D24
D20
D22
D19
D21
ZONE D T'STAT
C W2 W1 Y1 Y2 R
R4
C8
D2
D3
D27
D25
D28
D26
TO MAIN CONTROL PANEL
-
CONTROL SYSTEM
C R OW Y 2 2
EWC-STMS-3A Control Panel
ZONE 3 MOTOR SW3 OPEN
M6 M4 M2 M1
K3
D15 D16
D14 D13
K5
K1
Z5
Z1 C1
C W2 Y2 Y1 W1 R
D17
K6
Z6 C6
D4
R1
D6 D5
CLOSED
D2
Z7
D1
C7
K7
ZONE 1 T-STAT
C W1 Y1 HP Y2 W2 R O E G
K4 Z4 D22 C4 D21
CB1
2
ZONE 3 T'STAT
R3
D18
24V T'FORMER K8
24V 1 TRANSFORMER 24V, 40VA
Z3 C3
CLOSED
ZONE 1 SW1 MOTOR OPEN
M6 M4 M2 M1
Z8 C8
D19 D20 D32
SYSTEM
B O HP E W2 W1 Y2 Y1 GC R GHC
Y2 R
. DO NOT connect to voltages above 30 VAC.
R
CONTROLS INC. Englishtown, NJ
FUSE
R8
K8 C6
+
TRANSFORMER 24V, 40VA
D23
Z6
FUSE
2 24V
Z4
SW4
K6
24V T'FORMER
Y2 R
. DO NOT connect to voltages above 30 VAC.
R
CONTROLS INC. Englishtown, NJ
FUSE
R8
K8 C6
FUSE
SPARE
1 TRANSFORMER 24V, 40VA
D24
Z6
2AG 3AMP SLO-BLO
24V
C4
D20
WIRING DIAGRAM #13
C W2 W1 Y1 Y2 R
SW4
K6
24V T'FORMER
ZONE D T'STAT
D23
D31
K11
Z11
D33
C11
D34 D30
J1 K10
Z10 C10
D29 D27 D28
K9
Z9
D26 D25
C9
D23 D24
CAUTION PLEASE read all instructions carefully before starting the installation procedures. DO NOT connect to voltages above 30 VAC.
ADDITIONAL { ZONE PANEL
W2 Y2 O R C + -
R
CONTROLS INC. Englishtown, NJ
CONTROL SYSTEM
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
7
DAMPER WIRING
TRANSFORMER
WIRING DIAGRAM #14 Rectangular Damper wiring
A separate 24 volt 40 VA transformer is required and must be connected to terminals 1and 2 of the terminal block labeled "T-Former". This transformer powers the control panel, thermostats, and damper motors. It does not power the system control circuit. The board is protected by a polyfuse circuit breaker at the transformer input. The polyfuse overheats and opens the circuit to protect the panel. Removing power from the board allows the polyfuse to cool and automatically reset. If polyfuse overheats, check field wiring for shorts or miswires, especially damper motor wiring.
Jumper Wire
4
5
6
Z
1
2
3
X
D M P R 1
A single rectangular damper motor is wired to the M1, M4 and M6 terminals as shown.
DAMPER WIRING
M6 M4 M2 M1
Control Panel
Description of damper motor terminals on control panel Terminal M1 Common.
4 Jumper Wire
Terminal M2 Constant 24VAC.
1
Terminal M4 24VAC to
5 2
6
Z
3
Jumper Wire
X
4
5
6
Z
1
2
3
X
D M P R 1
M6 M4 M2 M1
open damper.
Terminal M6 24VAC to
Wiring two rectangular damper motors controlled by one zone as
close damper.
Control Panel
WIRING DIAGRAM #15 Controlling 3 or more rectangular dampers from One Zone Numbers in circles below refer to the terminal numbes on the socket for the R4 relay.
TRANSFORMER 24V, 40VA
R4 Relay Coil
R4 Type Relay
5
Jumper Wire
9
1
6
10
2
7
13
14
11
3
8
12
D M P R 1
M6 M4 M2 M1
4
4
5
6
Z
4
5
6
Z
4
5
6
Z
4
5
6
Z
1
2
3
X
1
2
3
X
1
2
3
X
1
2
3
X
Control Panel
A relay can be added to the system to control more than two dampers per zone. The diagram shows a relay used to control four dampers using the "R4" relay which has four sets of contacts (4-pole) with both normally open and normally closed contacts. If more than four dampers are required on a single zone, a second R4 relay can be added and the coils wired in parallel.
8
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
CLOSED OPEN
WIRING DIAGRAM #17 Wiring MA-SMDL Motor Actuators to ULTRA-ZONE Control Panels
ZONE 1 MOTOR
MA-SMDL
CLOSED OPEN
MA-SMDL
CLOSED OPEN
1 2 4
1 46
MA-URD
CLOSED OPEN
1 2 4
1 46
MA-ND2
CLOSED OPEN
1 2 4
1 46
Wiring MA-ND and MA-URD Motor Actuators to ULTRA-ZONE Control Panels
MA-URD
WIRING DIAGRAM #16
MA-SMDL
CLOSED OPEN
Damper Wiring
SW1 OPEN
M6 M4 M2 M1
ZONE 1 MOTOR
24V T'FORMER
CLOSED
24V T'FORMER
CB1
2
SW1 OPEN
M6 M4 M2 M1
CLOSED
CB1
2
1
1
WIRING DIAGRAM #18
WIRING DIAGRAM #20
Wiring Model MA-L Motor Actuators [ Belimo KM 24 ] to a ULTRA-ZONE Control Panel
Spring Return Motor wiring
ULTRA-ZONE CONTROL PANEL CONTROLS INC. Englishtown, NJ
24V
3 2 1
M6 M4 M2 M1
24V T'FORMER
D M P R 1
{
MA-ESR
R
MA-L
M6 M4 M2 M1
NC NO C M M
2 R
CONTROLS INC. Englishtown, NJ
MA-L
1
3 2 1
{
24V
2
Note: 1. When using more than one damper per Zone, wire motors in parallel as shown. Maximum of 12 MA-L motors may be wired to a control panel. 2. To additional dampers as required.
This diagram shows how to wire a spring return damper. A power close style damper is wired M1 & M6. Power open style damper is wired to M1 & M4.
WIRING DIAGRAM #19 WIRING DIAGRAM #21
Wiring Model PAOB-F [ Belimo NM-24 ] to a ULTRA-ZONE Control Panel
Round Damper wiring ULTRA-ZONE CONTROL PANEL
0
1
0
NM-24
MA-RDN
1
NM-24
L [Y=0 R [Y=0
] ]
L [Y=0 R [Y=0
] ]
2
{
White Red Black
Control Panel
M6 M4 M2 M1
24V T'FORMER
1
MA-RDN
White Red Black
1
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
D M P R 1
M6 M4 M2 M1
E-Mail-
[email protected]
9
Service Notes The EWC-STMS-2A/3A is a multiuse control panel. The panel can be wired to a conventional single stage or 2 stage heating/cooling system or to a heat pump system. Therefore verify that the installation is wired for the intended application.
Assuming the heating/cooling equipment checks out fine, shut off the power at the furnace or heat pump. If it does not check out correct the problems before proceeding with testing of the zoning system.
To check out the installation, first check that the Heating/Cooling system is operational. Do this by using a jumper wire on the control panel "system" terminal block.
When testing the zone control system, the power at the furnace should be off, to prevent compressor short cycling and other controls being cycled needlessly.
Conventional Heat/Cool System
Jump from "R" to "Y1" Compressor and fan should turn on. . "R" to "G" - Compressor and fan should turn on. (due to STMS internal circuitry) "R" to "W1" - Heat should turn on. With 1st stage running, see that the 2nd stage is working by shorting "Y1" to "Y2" on cooling cycle and by shorting "W1" to "W2" on heating cycle.
Heat Pump System
Determine if reversing valve is to be energized in the cooling or heating mode. Jump from "R" to "Y1" Compressor and fan should turn on in heating or cooling mode depening on system. "R" to "G" - same as above.
Zone Control System Power 1. Check that there is 24VAC on terminals 1 and 2 from the transformer. 2. Check that there is 24VAC on terminals M1 and M2 for each zone damper. If voltage measured is less than 5 volt, check "Polyfuse" for overheating. If Polyfuse is hot, it is usually caused by a shorted cable, a miswired damper motor or thermostat. To find the problem, start with damper wiring. Disconnect one cable at a time, remove power from panel and wait 30 seconds. Restore power and recheck voltage at terminals M1 and M2. If voltage is restored, that is the cable with the short or miswire. To be sure that there is not more than one shorted cable, reconnect removed cables one at a time, monitoring the 24V power to make sure there are no more shorts. 3. Check each zone thermostat terminal block "C" to "R" to make sure that there is power to each thermostat. 4. Make sure that the proper thermostat is wired to each zone. "On Heat Pump Systems" the Zone 1 thermostat MUST be a "Heat Pump Thermostat", Zones 2 and 3 and all expansion zones require conventional thermostats [ see diagrams #5 to #8 ].
"R" to "Y1" + [O or B] Compressor and fan should turn on in the opposite mode to step 1. 10
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
Service Notes
Damper Operation 5. If panel will not go into "Cool" mode, make sure Zone 1 thermostat is in "Cool" mode and that there is 24VAC present between "C" and "O" terminals on Zone 1 thermostat terminal block. If the thermostat is in the "Cool" mode and there is no 24VAC between terminals "C" and "O" on the panel, check out the wiring, subbase and thermostat to determine where the problem is. If panel will not work in "Heat" mode, make sure Zone 1 thermostat is in "Heat" mode, and that there is NO voltage between terminals "C" and "O" and "C" and "E". If voltage [24VAC] is present, check wiring, subbase and thermostat. If voltage is present on terminal "O" the panel is in the "cooling mode". Voltage on terminal "E" puts the panel into "Emergency Heat" mode and will not permit the compressor to run in the Heating or Cooling mode.
Before starting to check dampers for proper operating sequence, put all "Open-Closed" switches on panel in "Open" position. Determine how many and what model of damper is connected to each zone. Verify that they are wired per the correct schematic for the number and model of damper used. [ see schematics #14 to #21 ] Start test with all zone thermostats satisfied all dampers should be open. Make Zone 1 thermostat call - Zone 1 damper should stay open, all others should close. Repeat this test with all other zones - have that zone thermostat call with all others satisfied that damper remains open, all others should close. The control panel damper terminal block outputs are as follows M1 = 24V common M2 = 24V constant M4 = 24V signal to open M6 = 24V signal to close
Damper Models After review of service notes, the problem cannot be resolved, then call the Technical Support hot-line (1-800-526-4048).
On Models SMD, BMD and IMD dampers, also wall registers, ceiling diffusers and floor registers using Model MAN motor actuators make sure that there is a "Jumper" from terminal "2" to "5". Power on terminal 1 and 4 drives the damper open and power on terminals 1 and 6 drives it closed. Model ND same as above but no "Jumper" is needed. Model RDN and SMDLED - apply power [24V] between terminals 1 and 2 damper should drive closed and stop. With power (24V) applied to terminals 1 and 2 plus 4, damper should drive open and stop.
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-635-8646
E-Mail-
[email protected]
11
WIRING DIAGRAM Model STMS Control Panel HEAT PUMP AND 2 STAGE WIRING
Rectangular Damper Motor Wiring
HEAT
4
. . . . 50
60
70
. . . .
80
50
60
70
COOL
80
50 60 70 80
. . . .
4 1
EWT-2S ZONE 3 THERMOSTAT
5
6
HEAT PUMP WIRING
Z
EWC-STMS-3A Control Panel
Jumper Wire
1
2
3
ZONE 3 MOTOR SW3 OPEN
X
M6 M4 M2 M1
K3
Z3
D15
C3
D16
D14 D13 Z5
K5
D17
W2
Y2
Y1
W1 RC RH
C W2 Y2 Y1 W1 R
D18
CLOSED
Round Damper Motor Wiring
EWC-STMS-2A/3A controlling a heat pump 2 stage heat & single stage cool with emergency heat
ZONE 3 T'STAT
R3
K6
Z6 C6
1
EWT-HPH ZONE 1 THERMOSTAT . . . . 50
RV
M6 M4 M2 M1
REVERSING VALVE
TRANSFORMER 24V, 40VA
Y
C1
CLOSED
50 60 70 80
. . . .
D2
Z7
D1
C7
K7
ZONE 1 T-STAT
D22 C4 D21
CB1 K8
Z8 C8
SYSTEM
D19 D20
D31
B O HP E W2 W1 Y2 Y1 GC R GHC
{ W2
SECOND STAGE HEAT RELAY
R
C TRANSFORMER
G
K11
Z11
D33
C11
D34 D30
J1 K10
Z10 C10
D29 D27 D28
K9
Z9
D26 D25
C9
D23 D24
CAUTION
W2 Y2 O R C + -
PLEASE read all instructions carefully before starting the installation procedures. DO NOT connect to voltages above 30 VAC.
ADDITIONAL { ZONE PANEL
AUTO ON
X
Y
EM. HEAT HEAT OFF COOL
E
W2
R
CONTROLS INC. Englishtown, NJ
CONTROL SYSTEM
O
B
L
G
1
}
2
EWT-2S ZONE 3 THERMOSTAT
R
FAN RELAY
FAN
C W1 Y1 HP Y2 W2 R O E G
Z4
D32
EMERGENCY HEAT RELAY
EM. HEAT AUX. HEAT
80
R1
D6
K4
1 3
70
HEAT PUMP THERMOSTAT
24V E
60
D5
24V T'FORMER
2 COMPRESSOR RELAY
Z1
K1
ZONE 1 SW1 MOTOR OPEN
D4
HEAT
4
. . . . 50
60
70
. . . .
80
50
60
70
80
COOL
50 60 70 80
Rectangular Damper Motor Wiring 1
. . . .
4
5
6
2 STAGE WIRING
Z
EWC-STMS-3A Control Panel
Jumper Wire
1
EWC-STMS-2A/3A controlling a conventional 2 stage heat and 2 stage cool system
2
3
ZONE 3 MOTOR SW3 OPEN
X
M6 M4 M2 M1
K3
Z3
D15
C3
D16
ZONE 3 T'STAT
R3
D18
CLOSED D14 D13 Z5
Round Damper Motor Wiring
K5
D17
Y2
K6
K1
ZONE 1 SW1 MOTOR OPEN
M6 M4 M2 M1
HEAT 2 RELAY
W1
TRANSFORMER 24V, 40VA
C1
Z6 C6
CLOSED
EWT-2SM ZONE 1 THERMOSTAT
D2
Z7
D1
C7
R1
G
FAN RELAY
R
Z8 C8
D19 D20
D31
K11
Z11
D33
C11
D34
K10
Z10 C10
D29
CAUTION
D27
PLEASE read all instructions carefully before starting the installation procedures. DO NOT connect to voltages above 30 VAC.
D28
K9
Z9
D26 D25
C9
D23 D24
Connect this lead to this terminal to cycle fan in both heating and cooling
EWC R
70
80
COOL
Technical. . . . . . . . . . 1-800-526-4048 Sales. . . . . . . . . . . . . .1-800-446-3110 Fax. . . . . . . . . . . . . . . 1-732-635-8646 e-mail.
[email protected] 385 Highway 33, Englishtown, NJ 07726
O
G
B
1
D30
J1
ADDITIONAL { ZONE PANEL
R
Excellence Without Compromise
60
HEAT OFF COOL
W1 Y1 Y2 W2 RC RH
C W1 Y1 HP Y2 W2 R O E G
D21
K8
C TRANSFORMER
. . . . 50
AUTO ON
ZONE 1 T-STAT
D32
COOL 1 RELAY
80
FAN
K7
C4
CB1
B O HP E W2 W1 Y2 Y1 GC R GHC
70
. . . .
D22
SYSTEM Y1
50 60
50 60 70 80
Z4
1
COOL 2 RELAY
. . . .
D6
K4
24V
Y2
D4
W1 RC RH
D5
24V T'FORMER
2
HEAT 1 RELAY
Z1
Y1
1
HEAT
W2
12 CONTROLS INC.
W2
C W2 Y2 Y1 W1 R
CONTROLS INC. Englishtown, NJ
CONTROL SYSTEM
All wiring should be done to local and national codes and ordinances. Use color-coded multi-conductor wire. Wire number to number or
W2 Y2 O R C + -
}
NOTES: 2
1. Field installed jumper. 2. To add expansion panels see TB-117. 3. Wire to Terminal "O" or "B" depending on system Reversing Valve. See TB-117. 4. Zone 2 & 3 must be conventional thermostatsnot Heat Pump.
WARNING: THIS PANEL IS DESIGNED FOR USE WITH 24 VOLTS. DO NOT USE ANY OTHER VOLTAGE!
