Emergency Operation; Defrosting; Serial Interface; Door Contact Switch - Viessmann FS0900SE Betriebsanleitung

GB
6.

Emergency operation

lf the regulator stops operating, the cooling unit can
continue to operate on an emergency basis. After removal
of the front panel, the regulator is accessible. By activating
the flip switch, the output for the compressor and the
ventilators is bridged.The unit is then in permanent
operation.The function of the pressostat as a safety device
is maintained.
Important!
Emergency operation must be monitored, since the
coldroom temperature is not regulated.The coldroom
temperature must be adjusted manually by switching
of the power supply at intervals.
7.

Defrosting

Automatic defrosting takes place automatically above +3°C.
8. Serial interface RS 232
The regulator has a 9-pole D Sub plug on the back of the
plate. The serial interface serves as a connection to the
remote control supplied optionally and is prepared for
connection to a central control unit.
8.1

Door contact switch

lf the multiple pole plug of the unit is connected to a door
contact switch, the sliding switch on the regulator must be
placed in the position ‚with door contact switch. The switch
is accessible after removing the front cover.
9.

Cleaning and maintenance of the refrigeration unit

Attention!
Remove plug from power source during cleaning and
secure against reinsertion.
- The cooling unit should be inspected periodically after
beginning operation and, if necessary, cleaned.
Depending on requirements, the intervals between
inspection and cleaning have to be determined.The
cleaning intervals depend on the condition of the
surroundings.
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 No. 5237338-06 GB
- The condenser and evaporator can be cleaned with a
soft brush, compressed air or, in case of oil residues,
with a high pressure cleaner. Do not use any sharp or
pointed objects. The fins should not be bent or
damaged during cleaning.
By courtesy of intensive contamination with solvents or
outgasing synthetics natural discolorations can appear
on the SilverProtec surface. These are unproblematicly
removable with common purifiers based on oxygen or
with bleaching agents with a reaction time conforming
to the gravity of discoloration. The purifiers Vanish
Oxiaction from Hoffmanns or Sil OXIperfect from Henkel
perform well. Both products are available in trade. For
the cleaning of vertical areas on which the sprayed
purifier would slide down without a reaction time, we
recommend to spray the purifier on a cleaning rag and
then press it slightly on the discoloured spot so that the
rag doesn't slip off. Remove the rag after the reaction
time and wipe the treated spot again.
Pay attention to the product information!
10.

Disposing of refrigerant

lf the cooling unit has to be replaced by a new one, take
care not to damage the pipes on the cooling unit, to
ensure that no coolant is released.
Defective cooling units must be disposed of according
to environmental regulations and guidelines.
Electronic regulator control after removal of front
cover.
6 - 10
without
Door Contact Switch
with
Right reserved to make technical changes!