Koldwave 5AK39BFA, Инструкция по установке, эксплуатации и обслуживанию, Страница: 17 / 32

17
Inspection and Repair of Electrical
System
* Koldwave Technical Services
Department must be contacted prior
to or during any repair/service on a
unit which is under warranty.
Service other than routine
maintenance should be performed
only by a qualified refrigeration
service person.
Always disconnect power and discharge
capacitors before servicing.
Compressor and Fan Motor Capacitors
Visually check the capacitors for bulges or
signs of leakage. Using a capacitor tester,
check each capacitor shorts, grounds, or
leakage. Also verify the capacitance in mfd
matches the capacitor rating.
Inspection and Repair of
Refrigerant System
* Koldwave Technical Services
Department must be contacted prior
to or during any repair/service on a
unit which is under warranty.
Service other than routine
maintenance should be performed
only by a qualified refrigeration
service person.
Check all connections and every part for
leaks whenever the refrigerant system is
repaired. Use a leak detector, soap solution,
or a halide torch to inspect the system.
When repairing a refrigerant leak, the
brazing flame will cause oxidation to occur
inside the copper tubing being repaired. It is
therefore desirable to use a slightly reduced
flame and to flow dry nitrogen gas through
the refrigerant piping while brazing to
prevent this oxidation from taking place.
Once the repair is completed, thoroughly
evacuate the refrigerant system with a
vacuum pump before recharging the system.
Koldwave strongly recommends a
filter/drier be installed when any repairs are
made to the refrigeration system.
Preventative Maintenance
Your Koldwave portable spot cooler has
been designed to give maximum
performance and reliability with minimum
maintenance. Maintenance of the system is
concentrated in three areas covered in the
following paragraphs.
Blower Motors
Caution: Always disconnect the power
source before working on or near a motor
or its connected load.
The motor may require periodic cleaning to
prevent the possibility of overheating due to
an accumulation of dust and dirt on the
windings or on the motor exterior.
Filter
The life of a filter depends entirely on its
environment and use. It is recommended
that air filters be inspected on a regular basis
every four to six weeks. A clogged filter
will cause the unit to operate at greatly
reduced efficiency. This unit employs one
1/2" thick, washable aluminum mesh air
filter located behind the louvered front panel
of the evaporator coil and, depending on the
unit size, one or two in front of the
condenser coil on the left side or back of the
unit. The evaporator filter can easily be
removed and cleaned; just pull down the