User guide

10
It is important that you always refer to
the Boiler Manufacturers Instructions
concerning electrical wiring before using
the information contained in this leaet�
In some cases the Boiler Manufacturers
Instructions will contain information
regarding removal of certain link wires
and will always indicate the fuse rating
for the main electrical supply�
Important note:
Combination Boiler Model
Chaffoteux Celtix 2�20 OFF N PH 7 6
FIM Leblanc GVM 420 see special circuit
Glowworm Fuelsaver N L 8 7
Ravenheat N L C D
Saunier Duval SD 620 F N L 2 3
Saunier Duval SD 123C N L 2 1
Saunier Duval SD 235C N L 2 1
Saunier Duval SD 135C N L 2 1
N
D S
room stat
D = demand
S = satisfy
QM1 Terminals
220-240V AC
50 Hz
FUSED
SUPPLY
L 1 2 3 4