REMKO ETF 220 - Manual (Page 11)

11
Maintenance and Service
Regular maintenance and observance of some basic
principles are required to ensure a long service life and
to keep the unit functioning properly.
However, the unit should be inspected at least once a
year and thoroughly cleaned after long periods of use.
All movable parts have a permanent lubrication that re-
quires little maintenance. The entire cooling system is a
low-maintenance, closed-loop system and may only be
serviced by authorised service centres.
The unit is operated with the environmentally-friendly re-
frigerant R134 a which does not harm the ozone layer.
The refrigerant/oil mixture in the unit must be disposed
of properly in accordance with general regulations and
local requirements.
Import information on recycling!
Work on the cooling system and the electrical sys-
tem may only be performed by authorised person-
nel!
Cleaning the condenser and evaporator
The unit housing must be open to perform work on
these components; this work may only be performed by
authorised service centres!
◊
Clean the condenser and the evaporator either by
blowing air into the unit or with a vacuum cleaner or
soft brush.
Do not expose it to a direct stream of water.
◊
Keep in mind that the fins are easy to damage or
bend.
◊
Carefully clean the inner surfaces of the unit, the con-
densation tray with hose connection, the fan and the
fan housing.
◊
Reassemble all of the disassembled parts properly.
◊
Perform a functional test and conduct an electrical
safety check!
Before performing any work on the unit, make sure
to unplug power cord!
◊
Keep the unit free of dust and other deposits.
◊
Use only a dry or slightly moist towel to clean the
unit.
Do not expose it to a direct stream of water.
◊
Do not use abrasive cleaning agents or cleaning
products containing solvents; only use suitable
cleaning products even when the unit is extremely
dirty.
◊
Check the air intake filter for dirt on a regular basis.
Clean or replace if necessary.
The unit does not start:
◊
Check the connection to the power supply.
230V / 1~ / 50 Hz.
◊
Check the power fuse installed by the customer.
10 A.
◊
Check the power plug for damage.
Work on the cooling system and the electrical sys-
tem may only be performed by authorised person-
nel!
Troubleshooting
The unit was tested repeatedly during production to en-
sure that it is working properly.
However, should problems occur, refer to the following
list.
Before performing any work on the unit, make sure
to unplug power cord.
The unit is loud or vibrates, condensation comes
out:
◊
Make sure that the unit is in an upright position on a
flat surface.
◊
Check the condensation collector and the connection
adapter for dirt.
To perform this test, the unit must be open; it may
only be performed by an authorised service centre.
If, after performing these checks, the unit still does not
work properly, please notify an authorised service cen-
tre.
The unit starts but no condensation forms:
◊
Check that the condensation collector has been in-
serted properly and is not full.
“Collector full” may not appear on the display.
◊
Check that the microswitch of the condensation col-
lector is working.
◊
Check the room temperature.
The operating range of the unit is between 6 and 32
°C.
◊
Check the humidity.
Minimum 40 % relative humidity.
◊
Check the set operating mode.
The humidity in the setup room must be more than the
humidity of the selected range.
◊
Check the air intake filter for dirt.
Clean or replace if necessary.
◊
Check the exchanger fins for dirt.
To conduct this test, the unit must be open; it may
only be performed by an authorised service centre.