Technical data

19Installation and maintenance instructions ecoTEC exclusive 0020017768_05
5.10.4 Details for the connection of an external
timer to the connection rail
3
987
MAINS
SUPPLY
230 V
50 Hz
L
L
LN
N
N
N
20 VDC (DO NOT USE 7, 8, 9 IN UK!)
3 A FUSE
SWITCH
CONTACTS
ROOM
THERMOSTAT
CLOCK
4
5
Fig. 5.14 Details for the connection of timers
If it is intended to connect a room thermostat in
addition to a timer, the connection between the ON
connection of the timer and connection 4 on the boiler
must be interrupted by the contacts of the room
thermostat (see circuit diagram Fig. 5.14).
5.10.5 Optional plug-in timers by Vaillant
Further details for the connection can be found in the
relevant instructions of the accessories. The cover on
the connection box should be replaced after all the
electrical connections have been made. The cover is
secured with two clips.
Controller Item no. Connection
VRT 400 (single-circuit weather compensator) 307 409 Installation in electronics box (plug-and-play)
VRT 240 (room thermostat) 307 401 Wall mounting, terminal 3 - 4
VRT 360f (room thermostat) 0020018253 Remote controller, receiver wall mounting
VRT 360 (room thermostat) 307 406 Wall-mounted, 2-wire bus
VRT 40 (room thermostat) 300 662 Wall-mounted, 3-wire connection to terminals 7-8-9
VRT 50 (room thermostat) 0020018265 Wall-mounted, eBus
Telecommunication Item no. Connection
vrnetDIALOG 830 00 2000 3988 GSM/GPRS, wall-mounted or installation in electronics box
(plug-and-play)
vrnetDIALOG 840/2 00 2000 3983 Wall-mounted, analogue telephone line up to 16 appliances
vrnetDIALOG 860/2 (Int) 00 2000 3984 Wall-mounted, GSM/GPRS, up to 16 appliances
Accessories Item no. Connection
Accessory module 2 from 7 00 2001 7744 Fitting in the electronics box
vrDIALOG 810 306 743 Visualisation and configuration software
Table 5.2 Controller and accessories
Installation 5