Panasonic CU-YL28HBE5 Service Manual page 34

CAUTION
Dry Vacuuming
• If vacuum pump possible vacuuming until less than -100.7kpa.
Running vacuum pump at both liquid and gas side for more than 1 hour and vacuuming until -100.7kpa.
After that keep the pressure -100.7kpa for 1 hour and confirm the vacuum gauge value not increasing.
If vacuum gauge value is increase, there is possibility of water inside the unit or there is any leakage.
10.1.3. 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.
1. There should be sufficient ventilation.
2. The outdoor unit should be sheltered as much as
possible from rain and direct sunlight, and the air
should be able to move around so that hot and cold
air do not build up.
3. There should not be animals or plants near the air
outlet which could be adversely affected by hot or cold
air coming out from the unit.
4. The outlet air and operating noise should not be a
nuisance to other occupants nearby.
5. The location should be able to withstand the full
weight and vibration of the outdoor unit, and it should
also be level and safe for the unit to be installed.
6. The intake and outlet should not be covered.
7. There should not be danger of flammable gas or
corrosive gas leaks.
8. There should be as little back-ventilation (air blowing directly onto the fan) as possible.
(If strong wind blows directly onto the fan, it may cause problems with normal operation.)
• If you know which direction the prevailing wind comes from during the operating season, set the outdoor unit at a right-
angle to this wind direction, or so that the air outlet faces toward a wall or fence.
• If there are obstructions near the outdoor unit and the wind direction is not constant, install an optional air guider.
9. Do not allow any obstacles near the outdoor unit which will interfere with air flow around the air intake and air outlet.
10. If installing in a location which is prone to snowfall, place the installation base as high as possible, and be sure to install a
roof or enclosure which does not allow snow to accumulate.
11. Avoid installing the unit in places where petroleum products (such as machine oil), salinity, sulphurous, gases or high-
frequency noise are present.
Do not use a "CHARGE CYLINDER".
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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