29
Vanguard L -
Installation & Servicing
INSTALLATIoN
34 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 overheat reset button cap (22) and press the
reset button.
5.
Set the boiler thermostat (21) to maximum.
6.
Switch the burner switch (12), and pump switch (13) to the
ON position.
7.
Switch the electricity supply ON and check that all the
external controls are calling for heat. Set main boiler
switch (11) to on.
8.
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.
9.
Operate the boiler for 20 minutes and for gas fired boilers
check the gas rate (Table 1).
10.
Refer to the burner instructions for specific operating
features.
35 GENERAL cHEckS
Make the following checks for correct operation.
1.
The correct operation 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.
36 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 a
Gas Safe Registered Engineer for gas fired boilers.
33 commISSIoNING AND TESTING coNT'D
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.
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.
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.
INST
ALLA
TI
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