Domotec Therm-Control DHB 370 C, Installation Notes

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Appendix
Sensor position
Note : fo r plastic pipes
position sensor on metal
boiler coupling
Sensor positioning
on metal pipes
Sensor positioning
on plastic pipes
DHB 200
Min. 200 mm
Min. 200 mm
Insulation
Therm-Control sensor
Aluminium tape
Pipe/boiler coupling
Water Heater
DHB 405
Electrical Scheme
L
N
L L/ N N PE PE COM NO NC S1 GND S2 GND
Heating cable DHB 200
Pipe sensor
Temperature sensor s
NTC
Alarm 2 A max. 250 Vac
30 mA
MAX.
C 20 A
Therm-Control
For Connection of a single unit:
F1: circuit breaker 20 A max. ( C-characteristic).
F2: residual current device 30 mA.
For multiple unit connection on a three phase system
F1: circuit breaker 3x20 A max. ( C-characteristic)
F2: residual current device 3x30 mA double-pole electrical protection might be
needed to comply with local electrical standards.
For multiple unit connection on one phase system:
F1, F3, F5: circuit breaker 20 A max. ( C-characteristic).
F2, F4, F6: residual current device 30 mA.
D omotec.ch | 55
Water Heater
Water heater sensor