INSTALLATION

39 GAS CONVERSION

Gas type

 

 

 

L.P.G.

 

 

 

Setting No.

 

 

4

 

 

 

1Check that the gas cock fitted under the boiler is turned off and the appliance is switched off at the mains isolating spur.

2Remove the front panel of the case.

3 Take off the lid of the sealed chamber.

4Take the front panel of the combustion chamber off and remove the burner as explained in frame 43.

NATURAL

1

GAS

 

B

5Carry out the conversion for the type of gas, replacing the burner injectors correctly as explained in frame 51.

6Re---assemble the burner, the front panel of the combustion chamber and the lid of the sealed chamber.

7Switch on the appliance at the mains isolating spur.

8Turn the boiler OFF positioning the main switch C as in figure below.

ABC D E

9Disconnect the CH temperature probe (24 on page 14).

10Press and hold the reset button D for about 10 seconds until the lock---out signal lamp E blinks.

11Connect the CH temperature probe (24 on page 14).

12Press the reset button D repeatedly (4 times) until the lamps A give the follow indication:

Gas

Position of

Approx. Max current through the

supply

knob B

modulator device

 

 

 

Natural gas

1

125 mA

 

 

 

L.P.G.

4

165 mA

 

 

 

13To change the setting turn the DHW temperature control B to a position corresponding to the gas used as shown in the figure above.

By turning the control B, the lock---out signal lamp E blinks quickly (2 per second) indicating that the setting has changed and must be memorized.

14To memorize the setting keep pressed the reset button D for about 5 seconds until the lamps A briefly blinks simultaneously.

15Open the gas cock.

16To reset the boiler to the normal operation turn it ON by the main switch C on the desired operation and checking the ignition pressure and that the burner lights up uniformly. The boiler automatically resets to its normal operation after 10 minutes if the above reset operation is not performed.

The factory setting is Natural gas.

17Calibrate the gas valve according to the instructions given in this manual.

INSTALLATION

Where:

Lamp ON

 

 

Lamp OFF

At this time it is possible to determine the current setting by keeping the reset button D pressed for more than 5 seconds. The lamps A will flash a number of times corresponding to the setting of the DHW temperature control B (see next figure).

18Set the correct gas pressure for central heating output required.

19Stick the self ---adhesive label (included with the conversion kit, indicating the type of gas, and the gas pressures to which the appliance has been set) over the existing label on the bottom of the control panel and replace the adjustment protection cap.

20Replace the front panels of the case.

21Check the correct operation of the boiler.

40 HANDING OVER

After completing the installation and commissioning of the system, the installer should hand over to the householder by the following actions:

1Hand the User’s Instructions to the householder and explain his or her responsibilities under the Gas Safety (Installation and Use) Regulations 1994 and amendments 1996 or rules in force.

2Draw attention to the Lighting Instruction label affixed to the inside of the lower front door.

3Explain and demonstrate the lighting and shutting down procedures.

4The operation of the boiler and the use and adjustment of ALL system controls should be fully explained to the householder, to ensure the greatest possible fuel economy consistent with household requirements of both heating and hot water consumption.

5Advise the user of the precautions necessary to prevent damage to the system and to the building, in the event of the system remaining inoperative during frosty conditions.

6If a programmer is fitted, draw attention to the Programmer Instructions and hand them to the householder.

7After installation and commissioning please complete the Commissioning Checklist before handover to the customer.

For IE, it is necessary to complete a “Declaration of Conformity” to indicate compliance to I.S. 813:2002.

8Stress the importance of regular servicing by a CORGI registered installer and that a comprehensive service should be carried out AT LEAST ONCE A YEAR.

In IE, servicing work must be carried out by a competent person.

Emphasise to the user that the boiler may stop working if the system pressure is lowered by draining radiators to decorate behind them. In particular, explain to the user how the domestic hot water temperature varies with flow rate. This is especially important when water is drawn off while the boiler is already running for central heating.

mini HE --- Installation & Servicing

33

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Mamiya C32, C28, C24 manual Installation GAS Conversion, Handing Over
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C28, C24, C32 specifications

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