M40
10 / ENGLISH
b.
ACCESSORIES´ CONNECTIONS
Fig. 18: Connecting a 4420 GSM remote control to the heater.
Alarm
Temperature sensor
Fig. 19. Connecting a solenoid valve to the heater.
Fig. 20. Connecting a room thermostat (a) and a weekly timer (b).
a.
The short-circuit loop shall be eliminated.
T0209