Operating Instructions and Installation Instructions

ManualsBrandsBosch ManualsAir ConditioningWR8..P...

6 720 607 884 (2009/05) GB

WR8..P...

WR11..P...

With piezo ignition and double safety system

consisting of 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 Manual 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

Summary of content (12 pages)

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Installation Manual and Operating Instructions Gas Instantaneous Water Heater WR8..P... WR11..P... 6 720 607 884 (2009/05) GB With piezo ignition and double safety system consisting of 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.
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Contents 1. Technical Characteristics and Dimensions 1.1 1.2 1.3 1.4 1.5 1.6 Category, Appliance Type and Approval Number ...... 2 General Description ......................................................... 2 Explanation of Model Code ............................................ 2 Dimensions ......................................................................... 3 Appliance design ............................................................... 3 Technical characteristics .............................
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1.4 Dimensions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Front cover Hole for fixing to wall Observation window Temperature control Output control Gas connection Exhaust pipe union Draught diverter with flue gas monitor Heat exchanger Automatic gas valve Piezo Water valve Fig. 2 Dimensions (mm) WR8..P... WR11..P... 1.5 A B C D E F G H (Ø) LPG 310 580 228 112,5 463 60 25 3/4" Appliance design 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26a.
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Technical characteristics Flue specifications*** Water system specifications Gas supply specifications * Output and heat demand 1.6 * ** *** 4 Technical Data Symbol Unit WR8 WR11 Rated max. heat output Pn kW 11.8 19.2 Rated min. heat output Pmin kW 7.0 7.0 kW 7.0 - 11.8 7.0 - 19.2 Output (modulation range) Rated max. heat input Qn kW 13.5 21.8 Rated min. heat input Qmin kW 8.1 8.1 G30/G31 mbar 28-30/37 28-30/37 G30/G31 kg/h 1 1.
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2. Preconditions for installation The appliance can only be sold in the countries mentioned in the type plate. 2.1 Regulations Gas safety (installation & use) Regulations 1998. It is the law in GB that a competent Person in accordance with the above regulations installs all gas appliances. Failure to install appliances correctly could lead to prosecution. It is in your interest , and that of safety, to ensure compliance with the law.
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2.6 Flue It is absolutely essential that all instantaneous water heaters are connected to a suitably dimensioned flue pipe by means of a gas-tight connection. The flue pipe should be made of galvanised iron, aluminium, stainless steel or fibre concrete. Fit as shown in Fig. 5. A flexible or rigid pipe should be used, fit it inside the flue socket. The external diameter of the pipe should be slightly smaller than the dimension specified in the appliances dimensions table. Fig. 5 Minimum distances (cm) 2.
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3. Operation and maintenance Sealed parts must not be interfered with. 3.1 Function This water heater is fitted with piezo ignition that provides for easy commissioning. In first place it must dislocate the output control of the off position to the ignition position (see fig. 7). Press in the slide control knob and subsequently press the piezo button. Release the slide control after about 15 seconds, if the pilot flame does not stay alight, repeat the operation.
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Function check* Flue gas safety device function check: - Disconnect flue pipe - Replace with pipe (about 50 cm long) with sealed end - Fit pipe vertically - Start up appliance at rated output and set temperature control to maximum temperature. Under those conditions, the appliance should shut down after two minutes. Remove temporary pipe and reconnect flue pipe. * This work may only be carried out by an approved engineer. 3.7 Converting to a different gas type Use only the genuine Bosch conversion kit.
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4.