Vaillant geoTHERM Installation Instructions

Electrical installation
54 Installation instructions geoTHERM 0020051574_04
7
7.3.7 Connecting a limit thermostat (dual-circuit
supply)
PE L2 L1L3N
L3 L2 L1NPEL3 L2 L1NPE 1 2 N PELNPE
SS
LNPEN L3
T
1
+
230 V
50 Hz
2
7.14 Connecting limit thermostats VWS
L3 L2 L1NPEL3 L2 L1NPE L3 L2 L1N PELNPE
PE L2 L1L3N
T
1
230 V
50 Hz
2
LNPEN L3
7.15 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 lines) (2).
> Install a limit thermostat on the standard power supply
for the auxiliary consumers in such a way that it inter-
rupts the current-carrying conductor.
> Connect a limit thermostat to the terminals (1).

Vaillant geoTHERM Specifications

General

Brand	Vaillant
Model	geoTHERM
Category	Heat Pump
Language	English