Internal Unit: Luster Terminals (Signal And Safety Connections) - Viessmann Vitocal 200-S Installation And Service Instructions Manual

Electrical connection

Internal unit: Luster terminals (signal and safety connections)

Set the required parameters during commissioning:
See from page 50.
Terminals Function
X3.1 Switched phase
X3.3 Flow switch
X3.4
X3.6 Power-OFF (jumper fitted at the fac-
X3.7 tory)
G
(cont.)
Explanation
Via control unit ON/OFF switch
Note
Observe the total load 1000 W of all connected compo-
nents.
Requires floating N/O contact:
Closed: Heat pump in operation
■
Open: Heat pump shut down
■
Breaking capacity 230 V~, 0.15 A
■
Remove jumper when connecting.
Requires floating 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 power-OFF contact signal switches off the supply
■
voltage to the relevant function components, subject
to power supply utility.
For the instantaneous heating water heater, the
■
stages to be switched off can be selected (parameter
"Output for Instant.htg wtr heater at power-OFF
790A").
The power supply for the heat pump control unit
■
(3 x 1.5 mm 2 ) and the cable for the power-OFF signal
can be combined in a single 5-core cable.
With heat pump cascades
■
– Power supply without on-site load disconnect:
Only connect the power-OFF signal to the lead heat
pump: See page 37.
–
Power supply with on-site load disconnect: Con-
nect the power-OFF signal to each heat pump: See
page 38.
Further information on power-OFF: See chapter
■
"Power supply".
In connection with Smart Grid:
Do not connect the power-OFF signal.
Do not remove jumper.
Installation sequence
29