Grasslin Towerchron QM1 Installation And User Instructions Manual page 10

Important note:
It is important that you always refer to
the Boiler Manufacturers Instructions
concerning electrical wiring before using
the information contained in this leaflet�
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�
Combination Boiler Model
Chaffoteux Celtix 2�20 OFF
FIM Leblanc GVM 420
Glowworm Fuelsaver
Ravenheat
Saunier Duval SD 620 F
Saunier Duval SD 123C
Saunier Duval SD 235C
Saunier Duval SD 135C
10
N
220-240V AC
50 Hz
FUSED
SUPPLY
N
see special circuit
N
N
N
N
N
N
QM1 Terminals
L 1 2 3 4
room stat
D
PH 7 6
L 8 7
L C D
L 2 3
L 2 1
L 2 1
L 2 1
S
D = demand
S = satisfy