5.10.2 Electrical wiring with valve seal control
Connect the 2nd stage thermostat (TR) to the terminals T6 and T8 removing the jumper.
Key to layout (Fig. 18)
B5 – Signal 2nd stage operating
h1
– 1st stage hour counter
h2
– 2nd stage hour counter
PG – Min. gas pressure switch
S3 – Remote lock-out signal (230V - 0.5 A max.)
T6A – Fuse
TL
– Limit thermostat
TR – 2nd stage thermostat
TS – Safety thermostat
V10 – Safety valve
V11 – 1st stage valve
V12 – 2nd stage valve
X4 – 4 pin plug
X6 – 6 pin plug
X7 – 7 pin plug
20141174
230V ~ 50Hz
Installation
22
GB
D4371
TO BE DONE BY
BY THE INSTALLER
Fig. 18