WR11
6 720 607 529 ZA (05.02) JS
WR11..G...
WR14..G...
WR18..G...
With electronic ignition and triple safety system
consisting of ionisation detector, flue gas monitor
and heat exchanger temperature sensor.
Safety instructions:
If you smell gas:
- Do not operate any electrical switches.
- Do not telephone from inside the danger area.
- Turn off the gas cock.
- Open windows and ventilate room.
- From outside, call the gas company and your approved
installer.
Do not use or store easily combustible materials in the vicinity
of the appliance.
Gas Instantaneous Water Heater
Installation and Operating Instructions
Installation and servicing of the appliance may only be
carried out by an approved technician.
The appliance should be regularly serviced in order to ensure
that it remains in perfect and safe working order.
If there is a risk of freezing, the appliance must be switched
off and drained. If the appliance has not been drained during
a cold spell, when it is switched on again check that it
produces hot water. If problems occur, contact your installer.
2 6 720 607 529
2.5 HDG funcioning ................................................................ 5
2.6 Gas connection ................................................................. 5
2.7 Flue....................................................................................... 5
2.8 Commissioning .................................................................. 5
3. Operation and maintenance
3.1 Function .............................................................................. 6
3.2 Water temperature control ..............................................6
3.3 Appliance adjustments ..................................................... 6
3.4 Maintenance ...................................................................... 6
3.5 Flue gas safety device ..................................................... 6
3.6 Converting to a different gas type ................................6
3.7 Troubleshooting ................................................................. 7
4. Operation .................................................................................. 8
1. Technical Characteristics and Dimensions
1.1 General Description
The appliance is easy to operate as it is ready to use at the
press of a button.
Guaranteed safety provided by:
- Gas-tight ionisation detector that prevents escape of gas
if there is no flame.
- Flue gas safety device that switches off the appliance if
the flue is not functioning properly.
- Temperature limiter which protects the heat exchanger
against overheating.
Electronic ignition controlled by opening of water valve.
Output modulation, absence of a permanent pilot flame and
absence of batteries make it more economical than
conventional appliances.
Hydrodynamic generator produces the necessary electrical
power for ignition and appliance monitoring.
Semi-permanent pilot flame functions only during the time
between opening of the water valve and activation of the
main burner.
Heat exchanger has no tin/lead lining.
Automatic water valve made of glass-fibre reinforced
polyamide, 100% recyclable.
Automatic control of water flow maintains constant flow rate
even with fluctuating supply pressure.
Proportional adjustment of gas and water flow rates in order
to ensure an even temperature gradient.
Green LED indicates burner condition.
1.2 Explanation of Model Code
Contents
W Gas instantaneous water heater
R Proportional output control
11 Flow rate (l/min)
G Electronic ignition powered by hydrogenerator
23 Natural gas type H
31 LPG (butane/propane)
S... Country code
1.3 Accessories (Included with Appliance)
- Sleeves and hooks for wall-mounting.
1. Technical Characteristics and Dimensions
1.1 General Description ......................................................... 2
1.2 Explanation of Model Code ............................................2
1.3 Accessories ........................................................................ 2
1.4 Dimensions ......................................................................... 3
1.5 Appliance design ...............................................................3
1.6 Circuit diagram ..................................................................4
1.7 Technical characteristics................................................. 4
2. Preconditions for installation
2.1 Regulations .........................................................................5
2.2 Location .............................................................................. 5
2.3 Fixing the appliance.......................................................... 5
2.4 Water connection ............................................................. 5
W R 11 G
23
31
S….
W R 14 G
23
31
S….
W R 18 G
23
31
S….
36 720 607 529
1.4 Dimensions
Fig. 2
1.5 Appliance design
Fig. 3
1. Pilot burner
2. Igniter electrode
3. Ionisation detector
4. Heat exchanger
5. Main burner
6. Injector
7a. Testing point for burner pressure
7b. Testing point for supply pressure
8. Slow ignition valve
9. Venturi
10. Temperature control
11. Water valve
12. Adjusting screw for min. water flow rate
13. Flow restrictor
14. Water filter
15. Cold water supply pipe
16. Diaphragm
17. Main gas valve
18. Regulating screw
19. Gas inlet
20. Gas filter
21. Hydrodynamic generator
22. Hot water supply pipe
23. Igniter unit
24. LED - burner status
25. On/Off switch
26. LED - failure indicator
27. Servo valve
28. Output control
29. Gas valve
30. Gas valve for pilot burner
31. Pilot burner injector
32. Gas pipe for pilot burner
33. Temperature limiter
34. Flue gas safety device
1. Outer case
2. Hole for fixing to wall
3. Observation window
4. Temperature control
5. LED failure indicator
6. On/Off switch
7. LED indicator for burner
status
8. Output control
9. Gas connection
10. Flue socket
11. Draught diverter with flue
gas monitor
12. Heat exchanger
13. Automatic gas valve
14. Igniter unit
15. Water valve
Dimensions
A B C D E F G H (Ø)
(mm) Nat. Gas G.P.L.
WR11..G...
310 580 228 112,5 463 60 25
WR14..G...
350 655 228 132,5 510 95 30
WR18..G... 425 655 334 132,5 540 65 30
1/2"
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