Viessmann VITOTRONIC 200 Service Instructions Manual page 295

Luster terminals, Vitocal 111-S/222-A/222-S
Terminals Function
X3.8 Frost stat, cooling
X3.9 or
Jumper
X40.L1 Heat pump control unit power supply:
Phase L1
X40.
?
X40.N Neutral conductor terminal
Earth conductor terminal
PCBs and connection options
(cont.)
Explanation
Note
No parameters need to be set
■
No jumper should be installed if a power-OFF contact
■
is connected.
The compressor is "forced" off as soon as the contact
■
opens.
The power-OFF signal switches off the supply voltage
■
of the respective component (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
■
2
(3 x 1.5 mm ) and the cable for the power-OFF signal
can be combined in a single 5-core cable.
In connection with Smart Grid:
The power-OFF signal must not be connected.
Jumper must be installed.
Requires floating contact:
Closed: Safety chain has continuity
■
Open: Safety chain interrupted; heat pump shut down
■
Breaking capacity 230 V~, 0.15 A
■
Connected in series if 2 safety components are instal-
■
led
Insert jumper if no safety components are instal-
■
led.
Power supply 230 V~
295