INSTRUCTION REF: IN145
ISSUE No. 2
DATE 25.02.09
Page 11 of 13
www.parry.co.uk
MAINTENANCE AND SERVICE
Servicing is recommended every 6-12 months depending on usage. All service or repair
work must be carried out by a competent gas engineer. Failure to do this could
invalidate your warranty.
ROUTINE MAINTENANCE
To be done by engineer
1)
Ensure fryer is filled with oil.
2) Fit pressure gauge to multifunction valve and go through lighting procedure, check
flame failure device opens in no more than 30 seconds.
3) Turn thermostat to 150°C and check that the pressure at the test point is:
NATURAL GAS
20mb ( 8” W.G.)
PROPANE GAS
37mb (14” W.G.)
BUTANE GAS
28mb (11.2” W.G.)
Adjust governor if necessary.
Only leave burner on for a minimum amount of time to ensure fryer does not get too
hot.
4) Turn the thermostat to off and ensure both burners extinguish completely within 3-4
seconds.
5)
Turn the thermostat on again to 150°C and ensure both burners cross light smoothly
from the pilot.
6)
Check burner flames are uniform and there is no spillage of the flames away from
the heat exchanger.
7) Turn the thermostat off and blow out the pilot. Check that the flame failure valve
closes within 60 seconds. This can be done by feel or sound.
9)
Turn off the gas, remove pilot and withdraw burner assembly, clean the burner parts
and ensure the injectors are clear.
10)
Reassemble the pilot and main burners.
11)
Go through the lighting up procedure, turn the thermostat to 150°C and allow to heat
