37
Installation and Servicing
SECTION 2 - INSTALLATION
2.24 INITIAL LIGHTING
Legend
A. Boiler Status
B. Burner on Indication
C. Hot keys
D. CH Temperature Control
E. DHW Temperature Control and
Boiler Off Switch
F. Pressure Gauge
G. CH Flow
H. Gas Inlet Pressure Test Point
I. Gas Service Cock
J. DHW Inlet Valve
K. CH Return Isolating Valve
L. DHW Outlet
M. Filling Loop
1
0
4
2
3
bar
MENU
READY
TIMER OR ROOM
THERMOSTAT OFF
ON
60°C
off
max
max
boiler
off
PREPARATION FOR IGNITION
1. Check that the electrical supply is OFF.
2. Check that the system has been filled and that the
boiler is not air locked.
3. Ensure that the automatic air vent cap is open. Refer
to Section 3.27.
4. To assist with venting the air from the system, refer to
Page 43 Vent System. This function operates the boiler
to ensure efficient venting of the boiler and system.
5. Refit the boiler front panel. Refer to Section 3.2.
6. Check that the drain cock is closed and that the CH (G
& K) and DHW (J) isolating valves are OPEN.
7. Check that the DHW Temperature Control Knob (E) is
turned fully anti-clockwise into the off position.
8. Check that the gas service cock (I) is OPEN.
9. Slacken the screw in the inlet pressure test point (H)
and connect a gas pressure gauge via a flexible tube.
INITIAL IGNITION
1. Switch the electricity supply ON and check all internal
and external controls are calling for heat.
2. Set the CH Temperature Control (D) to max and set the
DHW Temperature Control (E) to max. The boiler will
now go through its ignition sequence until the burner is
established.
Filling
Loop
CH Flow
DHW
Outlet
CH
Return
DHW
Inlet
Gas
Supply
G
L
I
H
J
K
M
A
D
C
E
F
B
3. If the boiler has not lit, after 5 ignition attempts, the following
screen will be displayed.
IGNITION LOCKOUT
Check other gas appliances work
If pre-payment meter check credit
If not, contact gas supplier
Restart boiler.
If fault persists contact installer
01482 498663
EXIT
RESTART
4. Restart the boiler and the ignition sequence will be repeated.
If restart occurs 5 times within 15 minutes then the following
screen will be displayed.
TOO MANY RESTARTS
Contact installer
01482 498660
EXIT
RESTART
If power is removed this will be restarted.
INST
ALLA
TION
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