Technical data

24 Installation and maintenance manual atmoCRAFT
5.4.5 Connection of external accessories and
control units
When connecting accessories, the existing bridge on the
relevant plug must be removed.
Take especial care that the bridge is removed when
incorporating an installation thermostat.
Controller Connection
VRC 410s (1-circuit
controller)
Insert into the operating aperture
VRC 420s (2-circuit
controller)
Operating component: Insert into the
operating aperture mixer module:
electronic box ProE plug
auroMATIC 620 Terminal X1/7-8-9
calorMATIC 630 Terminal X1/7-8-9
VRT 40 Electronics box ProE plug
VRT 390 Terminal X1/7-8-9
VRT 320 Terminal X1/7-8-9
VRT 330 Terminal X1/7-8-9
VRT 340f
Receiver Insert into the operating
aperture
VR 30/2 Plug X6/telephone jack (next to X2)
VR 80
to eBUS of controller calorMATIC 630 or
auroMATIC 620
VR 90
Mixer module VR 60
Table 5.1 Overview of the controllers which can be used
Accessories and external installation components Connection
External sensor VRC-DCF (from control set 410/420, see above) Electronic box plug socket X 8
Maximum thermostat Electronic box ProE plug “Installation thermostat”
Control fume extraction hood and Control external gas solenoid
valve and Fault signal display and External heating pump and
Control circulation pump and Control of an external exhaust gas
diverter
The accessories are and ancillary connection box which contains the
functions referred to. It is connected to the control box for control of
the components: plug socket X 7
Control of external solenoid valve or Operating and fault signal
display or Control external heating pump or Control circulation
pump
The accessories can be used for two of the functions referred to - the
setting of the required function is undertaken on the accessories. It
is connected to the control box for control of the components: plug
socket X 7
Flue gas sensor
Plugs are incorporated in the wiring harness, connection instead of
standard replacement resistance fitted
Gas pressure monitor Connection to ProE plug: Installation thermostat, plug socket X 1
Table 5.2 Accessories and external installation components
Note!
For the gas pressure monitor, several switches
having safety functions can be connected to the
small voltage input of the installation
thermostat (in series).
The water shortage safety device, external controllers
and similar items must be connected via potential-free
contacts.
The controllers shown in Table 5.1 can be used for the
control of the Vaillant atmoCRAFT and the heating
system. The installation should be undertaken in
accordance with the individual operating instruction
manuals.
5 Installation