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4. Refrigerant filling
Refrigerant filling must be done in the state of liquid refrigerant. If this is done in gas refrigerant, the balance of refrigerant
composition will collapse and damage the operation.
For the use of a gas cylinder without siphon inside, turn it upside down and use it.
(We recommend manifold with sight glass.)
DRY VACUUMING
• If vacuum pump possible vacuuming until less than -100.7kPa.
1. Running vacuum pump at both liquid and gas side for more than 1 hour and vacuuming until -100.7kPa.
2. After that keep the pressure -100.7kPa for 1 hour and confirm the vacuum gauge value not increasing.
3. If vacuum gauge value is increase, there is possibility of water inside the unit or there is any leakage.
10.5.3. Regarding handling
Handling the unit by hold the handle at compressor side and hold the basepan bottom at fan side.
10.5.4. Selecting the outdoor unit installation locations
• Select location which satisfies the following condition, and then confirm with the customer that such a place is satisfactory before
installing the outdoor unit.
Caution
Do not use a “CHARGE CYLINDER”.
Caution
As a rule, please collect all existing refrigerants in the system outside the system when the refrigerant leakage occurs by the
system.
After that, please fill new refrigerant of a regulated amount again.
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