Salus iT500RX - 2.3 Connection Description; 2.3.1 Wiring diagrams for single heating zone

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2.3 Connection Description
2.3.1 Wiring diagrams for single heating zone
A - Boiler control
B - Pump control in radiator heating system
C - Pump control in underoor heating system
L
AC 230V
ON / OFF
N
COMCOM
NONO
iT500RX
N
L
N
L
iT500TX
3V
2 x AA
Hydraulic diagram:
Hydraulic diagram:
Hydraulic diagram:
Electric diagram:
Electric diagram:
L
AC 230V
P1
N
COMCOM
NONO
iT500RX
N
L
iT500TX
3V
2 x AA
P1
P1
T
L, N - power supply 230V
NO, COM - voltage-free output
- fuse
Legend: Symbols explanation:
Buer / Coupler
Thermostatic
mixing valve
Radiator heating
Underoor heating
Pump
Boiler - Boiler connection*
- Boiler’s contacts for ON/OFF
thermostat (according to the
boiler’s instructions)
T
BOILER CONNECTION*
CH
OUTPUT
CH
OUTPUT