29
Commissioning Instructions
FIG. 38
OVEN VENT FAN
N
SW/L
BOILER
HTG
ON
H/W
OFF
H/W
ON
PN
NEUTRAL
PL
LIVE
L
LIVE
N
NEUTRAL
E
EARTH
SPARE NEUTRAL TERMINAL
SWITCH LIVE TO OPERATE BOILER FROM ROOM STAT
OR CYLINDER STAT VIA ZONE VALVES IF FITTED
TO ROOM STAT/ZONE VALVE(S) ETC ( IF FITTED)
FROST STAT (SEE NOTE BELOW)
TO CYLINDER STAT/ZONE VALVE(S) ETC (IF FITTED).
PUMP SUPPLY (THE CIRCULATING PUMP
MUST
BE
CONNECTED DIRECTLY TO THIS SUPPLY)
PUMP SUPPLY (THE CIRCULATING PUMP
MUST
BE
CONNECTED DIRECTLY TO THIS SUPPLY)
3 AMP PERMANENT SUPPLY
NOTE:
If no Hot Water System Controls are used a link
MUST
be fitted between
H/W
ON and
SW/L
BOILER.
If no Central Heating System Controls are used a link
MUST
be fitted between
HTG
ON and
SW/L
BOILER.
If a Frost Thermostat is fitted it
MUST
be connected to
SW/L
BOILER and
H/W
OFF.
TERMINAL STRIP CONNECTIONS