45
Terminals Function
Explanation
X3.1
Switched phase
Via control unit ON/OFF switch.
Note
Observe the total load (1000 W) for all con-
nected components.
X3.3
X3.4
Flow switch
Requires zero volt
N/O
contact:
■ Closed: Heat pump in operation
■ Open: Heat pump shut down
■ Breaking capacity 230 V~, 0.15 A
Remove jumper when connecting.
X3.6
X3.7
G
Power-OFF (factory-fitted
jumper)
Requires zero volt
N/C
contact:
■ Closed: Heat pump in operation
■ Open: Heat pump shut down
■ Breaking capacity 230 V~, 0.15 A
Remove jumper when connecting.
Note
■ No parameters need to be set.
■ The compressor is "forced" off as soon as
the contact opens.
■ The supply voltage to the relevant func-
tion components is switched off by the
power-OFF contact signal.
■ For the instantaneous heating water
heater, the stages to be switched off can
be selected (parameter "Output for in-
stant. heating water heater at power-
OFF 790A").
■ For further information regarding power-
OFF, see chapter "Power supply".
Installation sequence
Electrical connections
(cont.)
5782 201 GB
Installation