Viessmann VITOTRONIC 200 Service Instructions Manual page 303

Vitocal 111-S/222-A/222-S/222-G/333-G controller and sensor PCB
Sensor Connection at
plug X25
F11
—
F12
—
F13
—
F14
—
F16
—
F24 X25.15/X25.16 Vitocal 111-S/222-S only:
F25 X25.17/X25.18 Vitocal 111-S/222-S only:
Factory-fitted
For temperature sensor parameters: See page 314.
Sensor/component
Contact humidistat 24 V
–
Note
If the following contact humidistats are used during cooling, insert
jumper, otherwise the heat pump will not start (message "CA
Protectn device primry").
: Contact humidistat 230 V~: Connection to X3.8/X3.9
: Contact humidistat 24 V
Note
System with heating water/coolant buffer cylinder:
If cooling is performed via several heating/cooling circuits, pro-
■
vide a contact humidistat for each heating/cooling circuit.
Connect several contact humidistats in series.
■
Flow temperature sensor, heating circuit with mixer M2/HC2
System flow temperature sensor, downstream of buffer cylinder
Flow temperature sensor, cooling circuit (without buffer cylinder,
heating circuit without mixer A1/HC1 or separate cooling circuit
SKK)
Room temperature sensor for separate cooling circuit
Reversible suction gas temperature sensor
Liquid gas temperature sensor
PCBs and connection options
: Connection to NC-Box
–
(cont.)
Type
―
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
NTC 10 k
Ω
Pt500A
(PTC)
Pt500A
(PTC)
303