Service manual

6
2
Operating Conditions
Summary

The units referred to within this manual conform with the protection requirements of
Directives 89/336/EEC Electromagnetic Compatibility and 73/23/EEC Low voltage.
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Operating conditions of the unit are as follows:
Outdoor temperature -5 ~ 43°C Cooling
-15 ~ 21°C Heating
Room Temperature 18 ~ 32°C Cooling
15 ~ 29°C Heating
Room humidity <80% Cooling
Note 1: Cooling capacity is rated at the following temperature conditions:
Indoor air inlet temperature 27°C DB, 19°C WB.
Outdoor air inlet temperature 35°C DB.
Note 2: Heating capacity is rated at the following temperature conditions:
Indoor air inlet temperature 20°C DB.
Outdoor air inlet temperature 7°C DB, 6°C WB.
Note 3: For details about the Outdoor unit, Indoor units or Remote Controller installation
refer to the relevant literature, i.e. Installation Instructions supplied with the units.
Note 4: Operatives handling refrigerants must be suitably qualified in accordance with local
and national codes of practice and statutory requirements.
Note 5: Legislation may regulate the removal of waste refrigerant from the systems. We advise
awareness of any regulations and duty of care. Waste refrigerant must NEVER be
discharged to atmosphere.
Note 6: Electrical work should be in accordance with all relevant codes of practice and should
be carried out by suitably qualified personnel.
Note 7: Metric/Imperial pipe conversion.
1 5/8
Note 8: Within this manual:
ODU = Outdoor Unit IDU = Indoor Unit
R/C = Remote Controller D.O.L. = Direct On-Line compressor
INV = HP Inverter ODU FIX = HP Fixed Speed ODU
DB = Dry Bulb WB = Wet Bulb
Mg-Sw = Magnetic Contactor IOL = Inner Overload Relay
OCR = Over Current Relay IGBT = Inverter Gate Bi-Polar Transistor
Note 9: MPaG ⇒ kgf/cm
2
G Conversion multiplier
1.0MPaG = 10.2kgf/cm
2
G
Diameter (mm) 6.4 9.5 12.7 15.9 19.0 22.0 28.6 34.9 41.3 54.1
Nominal diameter (inch)
1
⁄4
3
⁄8
1
⁄2
5
⁄8
3
⁄4
7
⁄8 1
1
⁄8 1
3
⁄8 1
5
⁄8 2
1
⁄8