5
OPERATING THE BOILER
6 720 803 600 (2012/06)
3OPERATING THE BOILER
3.1 CONTROLS
[A] MAIN POWER ON/OFF BUTTON
[B] COVER OR POSITION FOR OPTIONAL PLUG-IN CONTROLLER
[C] DISPLAY
[D] SYSTEM PRESSURE GAUGE
[E] RESET BUTTON
[F] ECO BUTTON (DOMESTIC HOT WATER PRE-HEAT ON/OFF)
[G] HOLIDAY BUTTON
[H] DOMESTIC HOT WATER TEMPERATURE CONTROL
[I] CENTRAL HEATING TEMPERATURE CONTROL
[J] SERVICE ENGINEER BUTTON ONLY
[K] SERVICE ENGINEER BUTTON ONLY
[L] BURNER INDICATOR LIGHT
[M] POWER INDICATOR & FAULT INDICATOR (BLUE)
1
2
3
4
5
6
max
2
3
1
04
bar
reset
eco
1
2
3
4
e
6
maxmin
A
J
B
K
C
L
D
M
E
F
G
H
I
6720647361-71.1Wo