A - MASTER SWITCH FOR ON/OFF
B - MAINS ON/OFF INDICATOR +
FAULT DIAGNOSTIC LIGHT
C - CENTRAL HEATING TEMPERA-
TURE CONTROL
D - BURNER ON INDICATOR LIGHT
(GREEN)
E - FAULT RESET BUTTON
F - SERVICE BUTTON
G - DOMESTIC HOT WATER TEMPE-
RATURE CONTROL (ONLY IN
CONJUNCTION WITH OPTIONAL
DIVERTER VALVE)
H - ECO BUTTON (ONLY IN CON-
JUNCTION WITH OPTIONAL
DIVERTER VALVE)
I - SYSTEM PRESSURE GAUGE
J - POSITION FOR OPTIONAL
PROGRAMMER
K - DISPLAY
L - CENTRAL HEATING BOOST
BUTTON
M - HOLIDAY BUTTON (ONLY IN
CONJUNCTION WITH OPTIONAL
DIVERTER VALVE)
CONTROLS
USING YOUR
APPLIANCE