Installation guide

ENGLISH
Installation Manual 43
Refrigerant Bottling
WARNING
▶ Regulation for refrigerant leakage
: the amount of refrigerant leakage should satisfy the following equation for human safety.
❐ If the above equation can not be satisfied, then follow the following steps.
- Selection of air conditioning system: select one of the next
1. Installation of effective opening part
2. Reconfirmation of Outdoor Unit capacity and piping length
3. Reduction of the amount of refrigerant
4. Installation of 2 or more security device (alarm for gas leakage)
- Change Indoor Unit type
: installation position should be over 2m(6.6ft) from the floor (Wall mounted type → Cassette type)
- Adoption of ventilation system
: choose ordinary ventilation system or building ventilation system
- Limitation in piping work
: Prepare for earthquake and thermal stress
Total amount of refrigerant in the system
Volume of the room at which Indoor Unit of the least capacity is installed
- Add exact amount of refrigerant calculated by the installation pipe diameter length and the indoor combination.
Liquid pipe
Low Pressure
Gas pipe
High Pressure
Gas pipe
Ⓐ Manifold Gauge
Ⓑ Low pressure side Handle
Ⓒ High pressure side Handle
WARNING
- Pipe to be vacuumed : gas pipe, liquid pipe, common pipe
- If the refrigerant amount is not exact, it may not operate properly.
- If additionally bottled refrigerant amount is over ±10%, condenser burning or insufficient indoor unit
performance may be caused.
≤ 0.44 ( kg / m
3
)
(0.028(lbs/ft
3
))
Refrigerant piping system