Esse 39 Portrait, Инструкция по установке, эксплуатации и обслуживанию

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Page 27
39P-I01-160617
SERVICING INSTRUCTIONS
The heater is fitted with a pilot light and flame-sensing device which is also an oxygen
depletion sensor (O.D.S). This is not adjustable and must not be put out of action. If
any parts of this system requires replacement only original manufacturers parts must
be used.
The following servicing procedure should be carried out regularly and only by a qualified
person.
1. Ensure that the heater is turned off and is cold.
2. Remove the front panel, glass frame securing nuts and the glass frame Fig.2)
3. Carefully remove any deposits of dirt, lint etc., from the vermiculite burner bed,
aeration holes and pilot assembly with a soft brush. Do not use a vacuum cleaner
near the vermiculite burner bed.
4. Clean the pilot aeration ‘hole’.
5. Inspect the catalyst for sign of damage and dirt. The expected life of the catalyst is in
excess of 11,000 hours (10 years of normal use). After this time the catalyst should
be replaced. If there are any deposits of dirt or soot on the catalyst clean with a soft
brush and a vacuum cleaner.
6. Due to high temperatures reached within the heater, surface cracks may appear on
the back board behind the flames. This is quite normal and will not affect the safe
operation of the heater. Replace the glass frame.
7. Check the high and low burner setting pressures as described in COMMISSIONING THE
HEATER.
8. Check the safe operation of the heater.
A.
If a combustion analyser is available check the combustion performance of the
heater as follows:
B. Light the heater on HIGH and after 15 minutes check the combustion
performance is in accordance with Fig.16 above the catalyser.
C. If the Co figures are more than given in Fig.16 this suggests that the catalyser is
due for changing or the aeration holes on the burner require or new
vermiculite granules are required. Turn off the heater investigate and correct.
9. Check that the purpose provided air vent is non-obstructed.
Fig 16
Above Catalyzer
Co ppm Less than 10
Co2% Approx. 3.0-5.0