Transcript
OSO RTV series
146042-01
RTVM 6-09
Installation, maintenance and service manual
RTV-E - single coil
RTV-VE - double coil
N
CCA
Think future http://www.osohotwater.com
Subject to changes without notice
1
Single coil RTV-E Function and construction The RTV-E is available in two capacities: 200 and 300 litres. It is a floor standing water heater which is delivered with three adjustable feet. The cold water supply is on top of the heater. The mixing valve and pressure relief valve are factory fitted. The mixing valve also functions as a stop valve towards the cold water supply. Easy draining of the heater with a drain valve on the pressure relief valve which is placed below the electric central. Solarex RTV-E has a built-in coil in stainless steel which is designed for circulation from f.ex. a solar panel. The electric element boosts the temperature whenever it is necessary. The RTV-E is equipped with operation and maximum thermostat. At delivery the thermostat is set at 75 ºC, but it can easily be adjusted with a screwdriver. The safety temperature release is at 98ºC. For electrical heating of tap water. Pressure: Max operating pressure 9 bar Temperature: Max operating temp. 85ºC Balancing temp. 100ºC
T/R F/R
OSO Solarex RTV -E makes use of solar energy
Built-in stainless steel heat exchanger.
Product description Recommended for Apartments, flats, cottages etc. Floor mounted or with a wall bracket – max 200 l. Indirect and/or electric heating. Serial conn. – max 6x300 l. Pressure vessel Stainless SMS steel, design pressure 10 bar, For all water qualities with chloride content less than 250 ppm. Insulation OSO ECO Foam, water based polyurethane. ISO 3285 certification. Flame retardant and recyclable. Insulation cover White epoxy coated steel. Good protection against rough transport and corrosive environment. Electric element RG 1 ¼” 3 kW 1x230 Volt. For all water qualities with chloride content <250 ppm. Maximum 5 kW 230/400V 1/3 phase. Electric thermostat TS2 adjustable 60-90°C, preset at 75°C. Safety cut-off at 98°C with reset. 30A 230-400V. Thermostat for 3 phase can be fitted. Electric central Plastic VO material in frame and cover. Splash proof IP21. Internally connected included electric cable and plug. Power cable Length 3m. Plug for grounded socket. Minimum fuse 16A for 3 kW 230V. Indirect heating coil Capacity max 26 kW with water from a boiler. 9 kW with solar heating and 9/6 kW when a combination of solar heating and a boiler Mixing valve UX thermostatic blending valve, adjustable 45-75°C, preset at 55°C. Integrated non-return and stop valve. Pressure relief valve SV2 preset and sealed at 9 bar. Factory mounted at drain connection. Easy draining prevents frost during winter. User manual Is supplied with unit, complete with spare parts list and equipment. Directions for use labelled on unit. Environment Zero emissions to ground, earth or water from production and regular use of product. All parts 100% recyclable.
Technical data
2
Order no.
ltrs. - kW
Suited for
Diam. x H mm
Conn.
OSO RTV-E OSO RTV-E
Volume Heat exch. cap.
200 - 3 kW
Solar heating
ø580 x 1230 H
22 mm
198 l.
9 kW when dt 20°C
45 kg
0,42
300 - 3 kW
Solar heating
ø580 x 1680 H
22 mm
287 l.
9 kW when dt 20°C
59 kg
0,58
Subject to changes without notice
Net. weight
M³
Prod. No.
Technical data RTV-E Quality: All units are fully CE approved. Pressure relief valve approved by NBI 06870/387. Electrical equipment is in accordance with LVD 73-23 (directive for low voltage systems) and EMC 89-336 (electromagnetic compatibility). List of details: 1. Power cable with plug Fixed connection is required for 400V 3-ph. 2. Mixing valve Adjustable temperature range (45-80ºC) 3. Electric central containing: Electric element 3kW stainless steel Incoloy 825 Thermostat 60-90ºC Safety temperature release 98ºC 4. Indirect heating coil Stainless steel Duplex LDX 2101 5. Pressure relief valve 9 bar Drain valve On the pressure relief valve
2
1 3
H
4 B 5
Measures (mm) A B Height incl. mixing valve Diameter
A
0-40
RTV 200E 223 633 1230 580
RTV 300E 223 633 1680 580
Connection to the vvx flow/return RTV 200E and RTV 300E is ¾”. Internal thread from pressure relief valve is ¾”.
ø580
4
F/R
3
Installation – important! The heater must be filled with water before the electricity is connected. Otherwise the warranty does not apply. If the heater is installed but not in use, it must be flushed with water once a week. 1
3
RESET
Electrical installation RTV-E For RTV-E 200 and 300 ltrs water heaters. IMPORTANT: The water heater must be connected to a separate switch.
2
4
1
2
Electrical connections – technical data:
1996
R5/4 "
RG 3 kW 230V 1 phase, 1 ¼” connection with O-ring seal Electric element up to 5 kW can be installed. Adjustable 60-90ºC. 98ºC Internally connected from factory. Splash proof IP21. 2,3 mtrs cable. Output >3kW or when 400V 3 phase is installed requires fixed connection
ER CK BA
Electric element: Thermostat: Safety cut-off: Electric central: Power cable:
230V 1-phase For installation in sanitary rooms special regulations apply.
Warning Do not remove the factory fitted pressure relief valve (9 bar). The valve must have a free flowing, non closeable 1/2” outlet to a visible and frost free drain! All alterations or repair concerning the electrical equipment must be performed by authorized electricians only, and in accordance with the diagrams shown. All connections must be pulled tight. This must be repeated after approximately 3 months’ operation. Subject to changes without notice
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Double coil RTV-VE Function and construction The RTV-VE is available in two capacities: 200 and 300 litres. It is a floor standing water heater which is delivered with three adjustable feet. The cold water supply is on top of the heater. The mixing valve and pressure relief valve are factory fitted. The mixing valve also functions as a stop valve towards the cold water supply. Easy draining of the heater with a drain valve on the pressure relief valve which is placed below the electric central. Solarex RTV-VE has built-in twin coils in stainless steel which are designed for circulation from a solar panel in f.ex. one coil and another heating source in the other coil. The electric element boosts the temperature whenever it is necessary. The RTV-VE is equipped with operation and maximum thermostat. At delivery the thermostat is set at 75 ºC, but it can easily be adjusted with a screwdriver. The safety temperature release is at 98ºC. For electrical heating of tap water. Pressure: Max operating pressure 9 bar Temperature: Max operating temp. 85ºC Balancing temp. 100ºC
T/R F/R
OSO Solarex RTV-VE Makes use of solar energy
Built-in stainless steel twin heat exchangers
Product description Recommended for Apartments, flats, cottages etc. Floor mounted or with a wall bracket – max 200 l. Indirect and/or electric heating. Serial conn. – max 6x300 l. Pressure vessel Stainless SMS steel, design pressure 10 bar, For all water qualities with chloride content less than 250 ppm. Insulation OSO ECO Foam, water based polyurethane. ISO 3285 certification. Flame retardant and recyclable. Insulation cover White epoxy coated steel. Good protection against rough transport and corrosive environment. Electric element RG 1 ¼” 3 kW 1x230 Volt. For all water qualities with chloride content <250 ppm. Maximum 5 kW 230/400V 1/3 phase. Electric thermostat TS2 adjustable 60-90°C, preset at 75°C. Safety cut-off at 98°C with reset. 30A 230-400V. Thermostat for 3 phase can be fitted. Electric central Plastic VO material in frame and cover. Splash proof IP21. Internally connected included electric cable and plug. Power cable Length 3m. Plug for grounded socket. Minimum fuse 16A for 3 kW 230V. Indirect heating coil Capacity max 26 kW with water from a boiler. 9 kW with solar heating and 9/6 kW when a combination of solar heating and a boiler Mixing valve UX thermostatic blending valve, adjustable 45-75°C, preset at 55°C. Integrated non-return and stop valve. Pressure relief valve SV2 preset and sealed at 9 bar. Factory mounted at drain connection. Easy draining prevents frost during winter. User manual Is supplied with unit, complete with spare parts list and equipment. Directions for use labelled on unit. Environment Zero emissions to ground, earth or water from production and regular use of product. All parts 100% recyclable.
Technical data Order no.
4
ltrs. - kW
Suited for
Diam. x H mm
Conn.
Volume Heat exch. cap.
Net weight M³
OSO RTV-VE 200 - 3 kW
Solar/boiler etc.
ø580 x 1230 H
22 mm
198 l.
9 kW + 6 kW
“
50 kg
0,42
OSO RTV-VE 300 - 3 kW
Solar/boiler etc.
ø580 x 1680 H
22 mm
287 l.
9 kW + 6 kW
“
64 kg
0,58
Subject to changes without notice
Prod. No.
Technical data RTV-VE Quality: All units are fully CE approved. Pressure relief valve approved by NBI 06870/387. Electrical equipment is in accordance with LVD 73-23 (directive for low voltage systems) and EMC 89-336 (electromagnetic compatibility). List of details: 1. Power cable with plug Fixed connection is required for 400V 3-ph. 2. Mixing valve Adjustable temperature range (45-80ºC) 3. Electric central containing: Electric element 3kW stainless steel Incoloy 825 Thermostat 60-90ºC Safety temperature release 98ºC 4. Indirect heating coil Stainless steel Duplex LDX 2101 5. Pressure relief valve 9 bar Drain valve On the pressure relief valve
2
1 4 H
3
Measures (mm) A B C D Height incl. mixing valve Diameter
RTV 200 VE 223 478 603 858 1230 580
RTV 300 VE 223 633 1000 1255 1680 580
Connection to the vvx flow/return RTV 200VE and RTV 300VE is ¾”. Internal thread from pressure relief valve is ¾”.
D C
4
B
5
A
0-40
ø580
4
3
F/R
Installation – important! The heater must be filled with water before the electricity is connected. Otherwise the warranty does not apply. If the heater is installed but not in use, it must be flushed with water once a week. 1
3
RESET
Electrical installation RTV-VE For RTV-VE 200 and 300 ltrs water heaters. IMPORTANT: The water heater must be connected to a separate switch.
2
4
1
2
Electrical connections – technical data:
R5/4 "
For installation in sanitary rooms special regulations apply.
1996
RG 3 kW 230V 1 phase, 1 ¼” connection with O-ring seal Electric element up to 5 kW can be installed. Adjustable 60-90ºC. 98ºC Internally connected from factory. Splash proof IP21. 2,3 mtrs cable. Output >3kW or when 400V 3 phase is installed requires fixed connection
ER CK BA
Electric element Thermostat Safety cut-off Electric central Power cable
230V 1-phase
Warning Do not remove the factory fitted pressure relief valve (9 bar). The valve must have a free flowing, non closeable 1/2” outlet to a visible and frost free drain! All alterations or repair concerning the electrical equipment must be performed by authorized electricians only, and in accordance with the diagrams shown. All connections must be pulled tight. This must be repeated after approximately 3 months’ operation. Subject to changes without notice
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Electrical connections RTV-E and RTV-VE
1
Reset button Safety cut-out
Thermostat
3
RESET
2
4
1
2
Temperature adjustment
C BA
R KE
1996 R5/4 "
Electric element 5/4"
Electrical equipment - description: Thermostat
TS2, adjustable from 60-90°C. Temperature is adjusted by turning the arrow on the temperature adjustment scale to the preferred temperature. IMPORTANT: When the internal temperature in the water heater is set close to 60°C there is a slight risk of bacterial growth in the unit. A temperature setting of 65°C or above is preferable. The factory setting is 75°C.
Reset button
Located on the upper part of the TS2 thermostat, this button will release and cut all power to the heating element if the internal temperature in the water heater rises above 98°C. If this occurs, the function of the thermostat must be checked by authorized personnel before the reset button is pressed.
Internal wiring
All internal wiring is factory fitted. 2.5 mm² wires are standard. The unit is also factory fitted with a standard external power cable, complete with plug for grounded sockets. Lenght 3 m.
Heating element RG 5/4” - 3 kW - 230V 1-phase. The element is resistant to up to 250 mg. Cl/litre. An RG 5/4” - 3 kW - 400V 2-phase element is also available as an option.
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Subject to changes without notice
Valves for RTV-E and RTV-VE Mixing valve The RTV series is fitted with an OSO UX-22 mechanical mixing valve. It is adjustable from 45-75°C. Preset at 55°C. The UX has an integrated non-return and stop valve. Connections ø22 mm. cold and hot water pipes are inserted into the appropriate connection on the mixing valve as shown. Then tighten nut. Temperature adjustment The water temperature from the water heater to the taps is adjusted using knob A. Start by turning A fully counter-clockwise. Then adjust to requested temperature according to the diagramme shown by turning A clockwise.
UX
°C 75 70 65 60 55 50 45
UX
40 35 Turn knob
30 25
0
1
Safety valve The safety valve is fitted near the bottom on the front of the unit, directly below the electric central. The plug D can be used as a drain. It is also possible to drain the unit by opening the safety valve itself, by turning knob K counter-clockwise until it stays open. To close valve continue turning counter-clockwise until the valve snaps shut.
2
3
4
5
K
D
R Overflow
Subject to changes without notice
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Spare parts for RTV-E and RTV-VE Electric element RG 5/4” 3 kW 230V 1-ph. with o-ring seal RG 5/4” 3 kW 400V 3-ph. with o-ring seal O-ring seal for 5/4” element Internal wiring 2,5 mm² KN 5/4” socket tool for 5/4” element
Order no.
71259 71246 73650 81570 73450
RG 5/4”
KN 5/4”
O-ring
Thermostat TS2 60-90°C with safety cut-off at 98°C
80060
1
3
TS2
RESET
2
4
1
2
Valves SV 2 - 9 bar safety valve UX 22 - Mixing valve AN sacrificial anode: for 200 ltr. model for 300 ltr. model Thermistor pocket
90405 90040 56200 56250 81020
SV2
UX 22
AN
Warranty The OSO stainless steel inner vessel is guaranteed against material defect or manufacturing faults for a period of 10 years from the date of purchase. All other parts including, but not limited to factory fitted electrical elements (damage caused by lime scale and aggressive water excluded), expansion vessel, thermostats and valves are guaranteed against material defects or manufacturing faults for 2 years from the date of purchase. In the event of a replacement component being required OSO Hotwater will supply such part(s) free of charge and freight paid, on condition that the defective component is delivered, freight paid to OSO Hotwater within 2 weeks of written notice being given to OSO Hotwater of the defect. Such replacement parts shall be guaranteed under the terms of this guarantee to the unexpired period of the aforementioned 2 year period. This warranty is conditional upon the OSO cylinder being installed in compliance with the OSO Installation & Maintenace Instructions, all current legislation, codes of practice and regulations governing the installation of unvented hot water cylinders in force at the date of installation and provided that: 1. The water quality shall be in accordance with European Council Directive 98/83 EC, or revised version at the date of installation, and is not fed with water from a private supply. Particular: Chloride content: Max. 250 mg/l Sulphate content: Max. 250 mg/l Combination Chloride/sulphate: Max. 300 mg/l (in total) 2. The OSO cylinder is filled with water before turning the electricity supply on to the heater elements. 3. If the newly fitted water heater is not in regular use then it must be flushed through with fresh water for at least 15 minutes. Open at least one hot water tap once per week, during a period of at least 4 weeks. 4. The OSO unvented cylinder has not been modified in any way other than by OSO Hotwater and is only used for the storage of potable water. 5. No factory fitted parts have been removed for unauthorised repair or replacement. 6. Defects caused by frost, excess pressure, salt dehardner process, transient voltage, lightning strikes or incorrect installation, repair or use, are not covered by this warranty. A laboratory evaluation of possible defects can be ordered by the user, however the user must pay for this where the above mentioned conditions have not been fulfilled. Evidence of the purchase date and the date of supply must also be submitted with your claim. This guarantee does not confer any rights other than those expressly set out above and does not cover any claims for consequential loss or damage. This guarantee is offered as an extra benefit and does not affect your statutory rights as a consumer.
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Subject to changes without notice
Maintenance and service manual OSO RTV series
Contents: • Instructions for service and maintenance
page 10
• Diagnostics and fault finding
11
• Service and parts replacement
12
Subject to changes without notice
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Instructions for service and maintenance General layout
Pos No. Key
10
Replaceable spare part
Not replaceable
Part No.
1
Mixing valve UX 22
90040
2
Anode RTV 200E/200VE
56200
2
Anode RTV 300E/300VE
56250
3
Electric box lid
74000
4
Thermostat kit
80060
5
5/4” heating element 1 x 240V
71259
5
5/4” heating element 2 x 400V
71246
6
Thermistor pocket
81020
7
FLOW
8
Power cable
9
RETURN
10
Safety relief valve SV-2
11
3/4” Drain
-
12
Leak warning outlet
-
13
Adjustable feet
51510
Subject to changes without notice
90405
60710
Diagnostics and fault finding guide
IMPORTANT: All maintenance or repair work must be executed by an approved installer. Type of failure
Possible cause
Diagnostic and what to do
No power supply to the water heater No hot water The thermostat may be set too high and cause the fuse or safety cut-off to operate.
Check if there is any power on the power supply terminal on the thermostat (4). Reduce thermostat setting by 5°C and press the reset button.
Heating element (5) or internal electrical wiring out of order. No heating
Check if there is any power on the power supply on the connector of the heating element between black and yellow/green wires. If this is OK, press the reset button on the fuse/safety cut-off.
Thermostat (4) is set too low. Heating element (5) or the internal electrical wiring partially out of order. Water not warm enough UX mixing valve (1) (fitted on top) is incorrectly adjusted
Adjust the thermostat up using a std. screwdriver. Check the resistance of the heating element on the connector of the heater bundle, and the condition of the internal wiring. See page 7 of this manual to see how to adjust the mixing valve to the preferred temperature.
Safety valve (SV) is dripping (10)
Water expands when heated. If there is no consumption of hot water over a period of time pressure builds up, causing the safety valve to open.
If drip from the SV is severe it might need to be replaced. Some dripping is normal. Alternatively an expansion vessel can be fitted.
Leak warning outlet (13) is dripping
The heating element (5) may not be properly tightened, or there may be a leak.
Check the heating element o-ring seal and all connections.
Other problems, or if none of the above solves the problem
Contact the installer/supplier regarding any other failure.
WARNING: Incorrect handling of thermostat, safety valve or other valves may lead to tank rupture. When servicing the unit follow instructions carefully: 1. Always turn off main power supply (8) when water supply is being shut off. 2. Test the free operation of the safety valve regularly by opening the valve ensuring the water flows freely. 3. Electrical connection and all servicing of the electrical components should only be carried out by an authorized electrician. 4. Fitting and all servicing of plumbing fixtures should only be carried out by an autorized installer. 5. When replacing the thermostat, safety valve or any other valve or part supplied with this unit, use only approved parts of the same specification. CAUTION: • Before resetting the safety cut-off or altering the thermostat setting, always remember to isolate the electrical supply to the unit. This must be done prior to removing the electrical box lid. • If the electric element (5) or thermostat (4) is defective, contact authorized electrician. • After adjustments are completed, ensure the lid to the electrical box is refitted correctly and that the retaining screw is properly fitted. Subject to changes without notice
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Service and parts replacement Spare parts list, see page 8.
Replacing the heating element 1. Disconnect the power cable (8). 2. Remove the electric box lid (3). 3. Shut mixing valve (1) by turning knob (A) fully clockwise until the valve is completely closed. 4. Open Safety Relief valve (10) for a few seconds to relieve some of the pressure. This is done by turning knob counter-clockwise. Close the valve by turning the knob (A) fully counterclockwise until it snaps shut. 5. Disconnect all wires from the element. 6. Remove the element (5) by using an element socket tool (see spare parts page 8). Some water will flow from the element connection when removing it. 7. Quickly clean the O-ring slot. Enter the new heating element (5) , with a new O-ring fitted, into its connection. Important: Make sure the element enters the thread correctly and that the O-ring is placed in its correct position. Tighten element. 8. Open mixing valve (1) using knob (A) and check the element connection for leaks. 9. Refit the wires to the element in their correct positions, tighten properly. 10. Refit the electric box lid and reconnect the power cable (8). Adjust the mixing valve to the preferred temperature setting (see diagramme on page 7) using knob (A).
Fig. C
A
Replacing the thermostat 1. Disconnect the power cable (8). 2. Remove the lid (3) covering the electric box. 3. Loosen screws labelled 1, 3, 4 and A (see fig. D) and disconnect the electric wires. 4. Remove thermostat (4) by pulling back slightly on steel clip S using two fingers, then lifting the thermostat slightly horizontally out of the clip before removing it from the electrical box. 5. Replace thermostat by again pulling back on steel clip S before slotting the new thermostat into place. 6. Reconnect the wires to connections 1, 3, 4 and A (see fig. D), tighten properly. For further description and details regarding the thermostat see page 6.
Fig. D
1
3
RESET
2
4
A
S
B
S
Important: Refit the electric box lid before reconnecting the power cable (8). Note: All reference numbers relates to fig. C above, except references in pt. 3 and 6 which relates to fig. D.
C BA
Inspection and/or replacing of sacrificial anode (inspect anode annually, first time after 1 year in service) R KE
1. Shut mixing valve (1) by turning knob (A) clockwise towards - (minus) to full stop.
R5/4 "
2. Open Safety Relief valve (10) for a few seconds to relieve some of the pressure. This is done
1996
2 1
by turning knob (K) counter-clockwise. Close the valve by turning the knob (K) fully
A
counter-clockwise until it snaps shut. 3. Unscrew the anode (2) using an appropriate spanner. 4. Pull the anode 2/3 out of the tank for inspection. Minimum diameter of anode is 8 mm. If the anode measures less than 8 mm in diameter in any area it must be replaced. 5. Reinstall/replace the anode and tighten properly. Make sure the anode enters the threads correctly and that its O-ring seal is in place. 6. Open mixing valve (1) by turning knob (A) towards + (plus), and adjust to the preferred
10 K
temperature setting (see diagramme on page 7) using knob (A). When replacing parts, use only approved spare parts of the same specification.
Think future http://www.oso.no www.oso-hotwater.com
12
OSO Hotwater Export AS • N-3300 Hokksund, • Tel.: +47 32 25 00 00 Subject to Norway. changes without notice
®
• Fax: +47 32 25 00 91
Fig. E
