Esoteric DV-30s Service Manual download pdf (Page 25)

Manual No. 405/0101 ANNUAL SERVICE 25

7. ANNUAL SERVICE - PAGE 25

To ensure continued efficient operation of the appliance, it is recommended that it is checked and cleaned as necessary at

regular intervals. The frequency of servicing will depend upon the particular installation conditions and usage but in general

once per year should be adequate. It is the law that any service work must be carried out by a competent person such as

British Gas or other C.O.R.G.I. registered personnel.

The following aspects of the boiler and installation should be examined, and rectified as necessary.

1. Check that the system pressure is 1.5 bar (cold).

2. Run the boiler and check the operation of its controls and ensure that it responds to any switches and programmer.

3. Check the installation of the flue terminal and ensure it is not obstructed.

If it is necessary to dismantle the boiler the following checks should be made.

1. Remove the combustion fan and ensure that it is clean and free of debris. Check the impellor for freedom of rotation.

2. Remove the combustion chamber front and check if the burner or heat exchanger requires cleaning.

3. Examine the main injector orifice and ensure it is clear and undamaged.

4. If a sufficiently large pilot flame cannot be achieved examine the pilot injector orifice to ensure it is clear and

undamaged.

5. When refitting the inner case front panel check that the seals are in good condition and compress satisfactorily.

On completion of the service run the boiler and ensure that it operates satisfactorily.

The boiler model and serial No. are given on the Serial No. label on the front of the control box.

The boiler data label is on the left hand side of the chassis next to the gas valve.

WARNING: Before commencing work open the control panel cover (hinges down) and turn the boiler thermostat to O.

Allow the boiler to cool and isolate the electricity supply.

IMPORTANT: Always test for gas soundness after completing any servicing of gas carrying components and carry out

functional checks of controls.

7.1 REMOVE THE CASE

Refer to Fig. 31.

Ensure that the electricity supply is off.

1. With the control panel cover open, remove the two screws

(one each side) securing the control panel to the case side

panels.

2. Carefully slide out the assembly away from the boiler,

unclipping the neon from the back of the control panel

before fully withdrawing the assembly.

Note: If a programmer is fitted, disconnect the wiring

harness from the rear of the programmer before fully

withdrawing the bottom panel assembly.

3. Remove the outer case front panel by pulling it forwards

off its fixings.

4. Place the case parts safely aside to avoid possible

damage.

Fig. 31

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Esoteric DV-30s Service Manual Page 25