Installing The Vr 65 With One 3-Port Valve; Lation Instructions - Vaillant Control Center VR 65 Installation Instructions Manual

5.1

Installing the VR 65 with one 3-port valve

• Wire up the Control Center as shown in fig. 5.2.
• Connect the eBUS terminals of the VR 65 to the eBUS
terminals of the heating appliance using a two-core
cable. The polarity of the eBUS cable can be mixed.
The eBUS can be branched at any part of the system.
The Control Center VR 65 requires its own 230 V mains
supply via a switched fused spur.
The boiler also requires a 230 V supply.
Note!
The VR 65 has a mains switch (see fig. 4.2) to
isolate the internal electronics as well as all
connected zone valves for the purposes of tests
and maintenance. When the housing cover has
been removed, a green LED indicates if the
VR 65 is still connected to the mains voltage.
Connection of Control Center
230 V~ CYL.
N L
230 V~
M
Fig. 5.2 Connection with 3-port valve
Installation Instructions for Control Center VR 65
CH DHW DHW
N on off on N on
BUS NTC DO NOT
+ - 2 1 USE
* NTC (for use with
Vaillant uniSTOR only)
* Cylinder
thermostat
* Note: With Vaillant uniSTOR - use either the cylinder thermostat or the NTC
Electrical installation 5
230 V wires
eBUS (24 V)
optional (24 V)
Vaillant
VR 65
ecoTEC
230 V~
optional
(VRT 360 or
VRC 400)
7