Instrukcja obsługi Bosch Appliances W18P

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Installation and Operating Instructions
Gas Instantaneous Water Heater
W11..P...
W14..P...
W18..P...
With piezo ignition and double safety
system consisting of flue gas monitor and
heat exchanger temperature sensor.
Safety instructions:
If you smell gas: Installation and servicing of the appliance may only be
- Do not operate any electrical switches. carried out by an approved technician.
- Do not telephone from inside the danger area.
- Turn off the gas cock. The appliance should be regularly s

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Index page page 1. Technical Characteristics and Dimensions ............... 2 2.5 Gas connection.................................................................5 2.6 Flue.......................................................................................5 1.1 General description ..........................................................2 2.7 Comissioning......................................................................5 1.2 Explanation of model code.......................................

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1.4 Dimensions 1. Front cover 2. Hole for fixing to wall 3. Observation window 4. Temperature control 5. Output control 6. Gas connection 7. Exhaust pipe union 8. Draught diverter with flue gas monitor 9. Heat exchanger 10. Automatic gas valve 11. Piezo 12. Water valve Fig. 2 Dimensions A B C D E F G H (Ø) (mm) Natural Gas LPG W11..P... 310 580 228 112,5 463 60 25 W14..P... 1/2" 350 655 228 132,5 510 95 30 W18..P... 425 655 334 132,5 540 65 30 1.5 Appliance design 1. Heat exchanger 2. Main burne

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1.6 Technical characteristics Technical Data Symbol Unit W11 W14 W18 P Rated max. heat output Btu/h 65570 80595 104165 n P Rated min. heat output Btu/h 31420 40300 52082 min Output (modulation range) Btu/h 31420 - 65570 40300 - 80595 52082 - 104165 Rated max. heat input Q Btu/h 74450 92210 117825 n Rated min. heat input Q Btu/h 36200 46105 58912 min Supply pressure: Natural gas mbar (kPa) 20 (2.0) 20 (2.0) 20 (2.0) LPG (butane/propane) mbar (kPa) 28 (2.8) 28 (2.8) 28 (2.8) Consumption: 3 Natural

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Select pipe diameter to suit output of instantaneous water 2. Preconditions for installation heater being installed. Fit gas service cock as close to appliance as possible. The appliance can only be sold in the countries mentioned in the type plate. Caution: This is a low pressure gas appliance. A SA certified 2.8 kPa low pressure regulator must be fitted. 2.1 Regulations Any local by-laws and regulations pertaining to installation 2.6 Flue and use of gas-heated appliances must be observed. Plea

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The overhaul should involve thoroughly cleaning the heat 3. Operation and maintenance exchanger, burner, pilot burner and automatic water valve filter. Sealed parts must not be interfered with. If necessary, the inside of the heat exchanger and the connecting pipes should be descaled. 3.1 Function Check the gas and water valves for leaks and carry out a This water heater is fitted with piezo ignition that provides complete function check. for easy commissioning. If components need to be replaced

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3.7 Troubleshooting Installation, servicing and repairs may only be carried out by an approved engineer. The following table illustrates only a few solutions to straightforward problems. Problem Cause Solution Pilot flame stay alight. Blocked pilot burner. Clean.* Several atempts required to turn pilot flame on. Yellow pilot flame. Flame goes out while appliance is in Flue gas safety device has tripped Ventilate room. Wait 10 minutes then restart operation. appliance. If problem recurs, call a

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4. Operation Turn on all gas and water taps Purge air from pipes Ignition: Depress slide control knob and hold it in Release the slide control knob after approximately 15 seconds Press the piezo igniter Repeat these steps if the flame does not stay alight Output Control: output decrease output increase Temperature adjustment Turning control anti-clockwise Turning control clockwise increases water flow rate and reduces water flow rate and reduces water temperature increases water temperature Swit