Indoor Unit: Luster Terminals (Signal And Safety Connections) - Viessmann Vitocal 200-S Installation And Service Instructions For Contractors

Installation sequence
Electrical connection

Indoor unit: luster terminals (signal and safety connections)

Set the required parameters during commissioning:
see page 51 onwards.
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
30
(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 operational
■
Open: heat pump shut down
■
Breaking capacity 230 V~, 0.15 A
■
Remove jumper when connecting.
Requires floating N/C contact:
Closed: heat pump operational
■
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 power
■
supply to the relevant components, subject to the
power supply utility.
For the instantaneous heating water heater, the
■
stages to be switched off can be selected (parameter
"Output for instant. heating water heater at pow-
er-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 disconnec-
tion: Only connect the power-OFF signal to the
lead heat pump: see page 38.
–
Power supply with on-site load disconnection:
Connect the power-OFF signal to all heat pumps:
see page 39.
For further information regarding power-OFF: see
■
chapter "Power supply".
In connection with Smart Grid:
Do not connect the power-OFF signal.
Do not remove jumper.