Glow-worm 45/2 Back Boiler - Manual (Page 13)

13 221780A
6 Commissioning
Diagram 6.2
3924 S
1.15 m 3 /h to 1.75 m 3 /h
40.5 ft 3 /h to 61.8 ft 3 /h
GAS SERVICE
COCK UNION
BACK
BOILER
ONLY 'ON'
TURNED
FULLY
CLOCKWISE
BACK
BOILER &
FIRE 'ON'
TURNED TO
MID POSITION
90
°
'OFF'
TURN FULLY
ANTI-
CLOCKWISE
180
°
The rate of the back boiler should be within the range,
Note, if the gas rate is checked, make sure that all other gas
appliances and pilot lights are turned off.
Turn control thermostat knob “B” anti-clockwise to “O” “Off”
position. Remove pressure gauge and replace test point screw
make sure that a gas tight seal is made. Replace governor
cover screw “F”.
Relight the back boiler by turning control thermostat knob “B”
clockwise to “MAX”.
Use the self adhesive arrow from the fittings pack and stick it
against the relevant heat input figure on the Data label.
6.2 Testing the Back Boiler Controls
To check the operation of the flame failure device carry on as
follows:
With the main burner alight, slightly push in gas valve control
knob “A” and then turn it fully clockwise until
is against the
setting point. This will cause the main and pilot burner to go out.
Note, relighting will not now be possible as the safety device in
the gas valve has been activated.
Check that the flame failure device closes within 60 seconds,
indicated by a “click” from the valve.
DO NOT ATTEMPT TO RELIGHT UNTIL AT LEAST 3 MINUTES
HAVE GONE BY.
Relight the pilot and main burner as described in the relevant
part of Section 6.1.
Check that the control thermostat and any external controls
operate the back boiler correctly.
6.3 Clearance of Products
A clearance of products (spillage) test must be carried out after
installation of the back boiler and its fire.
Before fitting the fire front check that the heat exchanger baffle
is fitted and seated correctly.
Make sure that there is no flame disturbance on the back boiler
burner immediately before carrying out test, look through pilot
window “M”, in diagram 6.1.
Details of the necessary procedure to be carried out will be
found under “TEST FOR CLEARANCE OF PRODUCTS” in the
fire front Installation Instruction Booklet.