Contact Temperature Sensor; Room Temperature Sensor For Separate Cooling Circuit - Viessmann VITOCAL Series Technical Manual

Installation accessories
3-way diverter valve with G 1½ connection
800 80
700 70
600 60
500 50
400 40
300 30
200 20
100 10
0 0
0 1
Flow rate in m³/h
A Diverted flow
B Straight flow

Contact temperature sensor

Part no. 7426463
For capturing the flow temperature of the separate cooling circuit or
the heating circuit without mixer, if it is designed as a cooling circuit.
4 2
6 6
Secured with a tie.

Room temperature sensor for separate cooling circuit

Part no. 7438537
Install in the room to be cooled on an internal wall, opposite radia-
tors/heat sinks. Never install inside shelving units, in recesses, or
immediately adjacent to a door or heat source (e.g. direct sunlight,
fireplace, TV set etc.).
Connect the room temperature sensor to the control unit.
VITOCAL
(cont.)
2 3 4 5
A
B
6 7 8 9
Specification
Lead length 5.8 m, fully wired
IP rating IP 32D to EN 60529; ensure through
design/installation.
Sensor type Viessmann NTC 10 kΩ at 25 °C
Permissible ambient temperature
– Operation 0 to +120 °C
– Storage and transport –20 to +70 °C
Connection:
■ 2-core lead with a cross-section of 1.5 mm
■ Lead length from the remote control up to 30 m
■ Never route this lead immediately next to 230/400 V cables.
6
2 (copper)
VIESMANN
95