Test running
Installation Manual
17
HEAT INSULATION
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resis-
tance (over 120°C).
2. Precautions in high humidity circum-
stance:
This air conditioner has been tested ac-
cording to the "KS Standard Conditions
with Mist" and confirmed that there is
not any default. However, if it is oper-
ated for a long time in high humid at-
mosphere (dew point temperature: more
than 23°C), water drops are liable to fall.
In this case, add heat insulation material
according to the following procedure:
• Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm.
• Stick glass wool on all air conditioners that are located in ceiling atmosphere.
Indoor unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
1. PRECAUTIONS IN TEST RUN
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
CAUTION
①
For test run, carry out the cooling operation firstly even during heating
season. If heating operation is carried out firstly, it leads to the trouble
of compressor. Then attention must be paid.
②
Carry out the test run more than 5 minutes without fail.
(Test run will be cancelled 18 minutes later automatically)
CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE
• After completing work, be sure to measure and record trial run properties, and store measured
data, etc.
• Measuring items are room temperature, outside temperature, suction temperature, blow out tem-
perature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise,
operating pressure, piping temperature, compressive pressure.
• As to the structure and appearance, check following items.
□
Is the circulation of air adequate?
□
Is the draining smooth?
□
Is the heat insulation complete
(refrigerant and drain piping)?
□
Is there any leakage of refrigerant?
□
Is the remote controller switch operated?
□
Is there any faulty wiring?
□
Are not terminal screws loosened?
M4......118N.cm{12kgf.cm}
M5......196N.cm{20kgf.cm}
M6......245N.cm{25kgf.cm}
M8......588N.cm{60kgf.cm}
Test running
Summary of Contents for NHXM40C1A0
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