Electrical Connections - Viessmann VITOCAL 200-G Installation And Service Instructions Manual

Electrical connections

Terminals Function
X3.8 Primary circuit pressure
X3.9 switch and/or frost stat
or
Jumper
P
(cont.)
Explanation
Note
■ No parameters need to be set.
■ The compressor is "forced" off as soon
as the contact opens.
■ The power-OFF contact signal causes
the supply voltage to the relevant com-
ponents to be switched off (subject to
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
power-OFF").
■ The power supply for the heat pump
control unit (3 x 1.5 mm
for the power-OFF signal can be com-
bined in a 5-core cable.
■ For further information regarding pow-
er-OFF, see chapter "Power supply".
Requires floating contact:
■ Closed: Safety chain has continuity
■ Open: Safety chain interrupted; heat
pump shut down
■ Breaking capacity 230 V~, 0.15 A
On-site connection:
■ Connected in series if both safety com-
ponents are installed
■ Insert jumper if no safety compo-
nents are installed
Installation sequence
2 ) and the cable
41