38
Harrier GTE -
Installation & Servicing
INSTALLATION
58 COMMISSIONING AND TESTING
A. ELECTRICAL INSTALLATION
1. Checks to ensure electrical safety should be carried
out by a competent person.
2. ALWAYS carry out the preliminary electrical system
checks, i.e. earth continuity, polarity, resistance to earth
and short circuit, using a suitable meter.
B. FOR GAS INSTALLATION
1. The whole of the gas installation, including the meter,
should be inspected and tested for soundness and then
purged in accordance with the recommendations of the
relevant standards listed on page 4.
WARNING. Whilst effecting the required gas soundness test and purging air from the gas
installation, open all windows and doors, extinguish naked lights and DO NOT SMOKE.
59 INITIAL LIGHTING
1. Check that the system has been filled and the boiler is not
air locked - air in the boiler could damage the heat
exchanger.
2. Check that all the drain cocks are closed and any valves in
the flow and return are open.
3. Check that the GAS SERVICE COCK IS ON.
4. Unscrew the safety thermostat (overheat) reset button cap
(7) or (Deluxe model 9) and press the reset button.
5. Set the boiler thermostats (3) or (Deluxe model 6) to
maximum.
6. If Deluxe control panel fitted set the 3 position switch (3) to
Manual or Auto.
7. If Deluxe control panel fitted set the burner and pump
summer/winter switches (2) to the winter setting (
).
8. Switch the electricity supply ON and check that all the
external controls are calling for heat. Set the main boiler
switch (1) to ON ( ).
9. The burner will commence the ignition sequence. If the
burner has failed to light then it will lock out. Press the reset
button to restart the ignition sequence.
10. Operate the boiler for 20 minutes and for gas fired boilers
check the gas rate (Table 1).
11. Refer to the burner instructions for specific operating
features.
12. Set the boiler thermostats (3) or (Deluxe model 6)to
appropriate settings ensuring the second stage is 5ºC lower
than the first stage if a 2 stage burner is fitted.
60 GENERAL CHECKS
Make the following checks for correct operation.
1. The correct operations of ANY secondary system controls
should be proved. Operate each control separately and
check that the main burner or circulating pump, as the
case may be responds.
2. Water circulation system;
a. With the system HOT examine all water connections for
soundness.
b. With the system still HOT, turn off the gas or oil burner,
water and electricity supplies to the boiler and drain
down to complete the flushing process.
c. Refill and vent the system, clear all air locks and again
check for water soundness.
d. Balance the system.
3. Finally set the controls to the User's requirements.
Note.
We advise never to set the boiler thermostat below position 4
(approx. 40ºC) in order to avoid the risk of combustion products
condensing on the walls of the boiler.
61 HANDING OVER
ROUTINE OPERATION
Describe the function of the boiler and system controls and
show how they are adjusted and used.
Hand these Installation and Servicing Instructions, User's
Instructions and Log book to the customer and request him to
keep them in a safe place for ready reference.
IMPORTANT. Point out the owner that the boiler must have
regular maintenance and cleaning, at least annually, in order to
ensure reliable and efficient operation. Regular attention will
also prolong the life of the boiler and should preferably be
performed at the end of the heating season.
Recommend that a contract for this work should be made with
the regional gas authority or a CORGI registered heating
installer for gas fired boilers.
INST
ALLA
TION
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