Vaillant geoTHERM SERIES, Руководство по установке, Страница: 53 / 132

Electrical installation
Installation instructions geoTHERM 0020051574_04
53
7
7.3.6 Connecting the limit thermostat
(unblocked mains supply)
L3 L2 L1 N PE L3 L2 L1 N PE 1 2 N PE L N PE S S L N PE N L3
PE L2 L1 L3 N
T
1
2
7.12 Connecting limit thermostats VWS
L3 L2 L1 N PE L3 L2 L1 N PE L3 L2 L1 N PE L N PE N L N PE L3
PE L2 L1 L3 N
T
1
2
7.13 Connecting limit thermostats VWW
Key
T
Limit thermostat
A limit thermostat (on-site) can be connected as additional
floor protection.
If there is a lock-out due to the limit thermostats, the con-
troller displays the error message 91 (
¬
Ch. 11.5 ).
>
Remove the bypass pipework (dashed line) ( 2 ).
>
Connect a limit thermostat to the terminals ( 1 ).