Viessmann VITOCAL 111-S - Page 36

36
Requirements for the contact humidistat:
■
Electrical connection, subject to the type of contact
humidistat:
–
24 V (recommendation):
Connection to F11 on the controller and sensor
PCB
–
230 V~, 0.5 A:
Connection to X3.8/3.9 on the luster terminals
■
Installation inside the room to be cooled at the cool-
ing water flow (remove thermal insulation if required)
■
If several rooms with different relative humidity levels
are part of the cooling circuit, fit and connect several
contact humidistats in series:
Design the switching contacts as N/C contacts.
Indoor unit: Remove the front panels
3.
4.
2x
2.
1.
5.
Fig. 27
Installation sequence
Only type AWBT(-M)-AC/AWBT(-M)-E-AC: Connecting the cooling circuit (cont.)
6199592
Installation