Electrical Power Supply Cold Room; Connection Of The Door Contact Switch; Connection Of The Fault Indicator Contact - Viessmann EVO-COOL Series Installation And Operating Instructions Manual

GB
5.

Electrical power supply cold room

A 4-pole socket outlet is located on the intake-side of the Refri-
geration evaporator unit for the electrical power supply to the
loads attached to the coldroom, with a total power capacity of
max. 250 VA (lighting, door frame heating).
The door contact switch can also be connected to this sokket
outlet.
5.1 Connecting the door contact switch
The evaporator ventilator should be switched off when the
cold storage cell is opened. For this reason, we recommend
the installation of an potential-free door contact switch (swit-
ching capacity 230VAC, min. 0.5 A).
Connection takes place via the 4-pole socket outlet mounted
on the intake-side of the evaporator unit.
In its delivered condition, the unit is functionally ready for
service without an external door contact switch.
The door contact switch is not included within the scope of
delivery of the unit.
If a door contact switch is connected to the refrigeration unit,
the regulation parameter must be changed (see also Point 9.3,
Menu Settings).
This is achieved through the following menu items:
 Settings
  Limiting values/Alarm


5.2

Connection of the fault indicator contact

The electronic control unit is outfitted with a potentialfree
Fault report contact for connection to the on-site Fault repor-
ting equipment (max. 10A, 230VAC). The mains side electrical
power outage is not monitored.
In the event of a fault, contacts IN and NO are closed.
The connection is located on the circuit board (plug connector
X4).
General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page 46 GB
Door contact
Yes/No
Mains connection 230V AC
via multi-pin connector
Door contact
switch
(optional)
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X4
IN NO NC
Right reserved to make technical changes!
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