System Maintenance; Servicing Schedule - IDEAL Harrier GTS 5 Installation And Servicing

58 SYSTEM MAINTENANCE

Water Level
Check the water level in the installation regularly, and if
necessary top it up without allowing a sudden inlet of cold
water into the hot boiler.
The operation should only be necessary a few times per
season; if it has to be done more frequently, there is probably
a leak which should be found and corrected without delay.
59 SAFETY
For boilers with gas burners
It is the law that any service work must be carried out by a
registered CORGI installer.
WARNING. Always turn off the gas supply at the gas service
cock, and switch off and disconnect the electricity supply to
the appliance and any external controls before servicing.
IMPORTANT. After completing the servicing or replacement of
components always:

60 SERVICING SCHEDULE

To ensure the continued safe and efficient operation of the
appliance it is recommended that it is checked at regular
intervals and serviced as necessary. The frequency of
servicing will depend upon the installation condition and
usage but should be carried out at least annually.
Ideal Stelrad Group does not accept any liability resulting
from the use of unauthorised parts or the repair and servicing
of appliances not carried out in accordance with the
Company's recommendations and specifications.
1. Light the boiler and carry out function checks, noting any
operational faults.
2. Run the boiler for 10 minutes and then check the burner
rate.
Harrier GTS -
Installation & Servicing
SERVICING
Safety Devices
Check that safety devices, and particularly the heating circuit
safety valve, are working correctly at regular intervals, and at
least when the boiler is cleaned.
Draining
It is recommended that an installation should not be emptied
unless absolutely necessary.
For example: when leaving for several months and/or there is a
risk of frost in the building.
• Test for gas soundness.
• check the water system is correctly filled and free of air. Air
in the boiler could cause damage to the heat exchanger.
• With the system hot examine all water connections for
soundness.
• Check the gas rate and measure the combustion CO/CO
content.
• Complete the boiler log book.
• Carry out functional checks as appropriate.
3. Optional test for gas fired boilers - Connect a suitable gas
analyser to the sampling point fitted in the flue adapter. For
correct boiler operation the CO/CO2 ratio of the flue gas
should not be greater than 0.004 ratio. If this is the case
and the gas input is at least 90% of the nominal, no further
action need be taken. If not proceed to 4.
4. Remove and clean the burner.
5. Inspect the heat exchanger through the burner opening.
Clean the flueways.
6. Check that the flue terminal is unobstructed and that the
flue system is sealed correctly.
7. After completion of servicing refer to previous frame for
reference to final safety checks.
2
35