32
Installation and Servicing
Section 2 - Installation
INST
ALLA
TION
The user control has one display to inform the user about
the status of the boiler. The display shows the status of the
flame. If no flame is detected then flame symbol will not be
visible. When the flame is detected the flame symbol will
be visible permanently.
Below is a list with display function.
Boiler Off Mode
Press the Mode button to
enable CH.
2.26 THE DISPLAY
N
Boiler On Mode, no Heat
Demand
N
Boiler is active for Central
Heating
N
Boiler is in Lockout for a
specific error.
Display will
show a number after the
“L” to indicate which error is
detected
Boiler has a fault for a
specific error.
Display will
show a number after the
“F” to indicate which error is
detected.
Boiler is active for boiler
frost protection:
operates
if the ambient temperature
is below 5°C until it reaches
19°C.
N
FP
L
01
F
01
2.27 GENERAL CHECKS
CENTRAL HEATING (CH)
1
.
Ensure that the external controls are calling for heat.
The display should show:-
2. Gas Rate
Check the boiler gas rate when the boiler is at
maximum output.
Refer to Section
2.30
Check at the gas meter, with no other appliance in use.
Refer to Table 2 for gas rates.
3.
Set the external controls to OFF. The burner should go
off and the pump continue to run for 4 minutes.
The display should show:
4.
Check the correct operation of the timer (if fitted) and all
other system controls. Operate each control separately
and check that the main burner responds.
Make the following checks for correct operation:
N
N
OFF
N
N