
44
SPLIT-TYPE ROOM AIR CONDITIONER
USER GUIDE
hose to the port as the right figure shown.
1. Install and Fix Outdoor Unit.
Fix with bolts and nuts tightly
on a flat and strong floor. If installed on the wall or roof, make
sure to fix the supporter well to prevent it from shaking due to
serious vibration or strong wind.
2. Outdoor Unit Piping Connection
• Remove the valve caps from the 2-way and 3-way valve.
• Connect the pipes to the 2-way and 3-way valves separately
according to the required torque.
• Outdoor Unit Cable Connection (see previous page)
3. Outdoor Unit Cable Connection (see previous page)
Air purging
The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on
the compressor. After connecting the indoor and outdoor units, release air and moisture from the
refrigerant cycle using a vacuum pump, as shown below.
Attention: To protect the environment, be sure not to discharge the refrigerant to the air
directly.
How to Purge Air Tubes:
1. Unscrew and remove caps from 2 and 3-way valves.
2. Unscrew and remove cap from service valve.
3. Connect vacuum pump flexible hose to the service valve.
4. Start vacuum pump for 10-15 minutes until reaching a vacuum of 10 mm Hg absolutes.
5. With vacuum pump still running close the low pressure knob on vacuum pump manifold. Then
stop vacuum pump.
6. Open 2-way valve 1/4 turn then close it after 10 seconds. Check tightness of all joints using liquid
soap or an electronic leak detector.
7. Turn 2 and 3-way valves stem to fully the valves. Disconnect vacuum pump flexible hose.
8. Replace and tighten all valve caps.
Содержание KF-CE07
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