Refrigerant Refill - Samsung MC26AC2-07 Service Manual

3-2-2(g) Refrigerant Refill
• Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using.
1. Vacuum system with pump (for new
installation, leakage).
2. Turn the 3-way valve clockwise to close,
connect the pressure gauge(low pressure
side) to the service valve, and open the
3-way valve again.
3. Connect the tank to refill with Refrigerant
4. Set the unit to Low pressure checking mode.
* Press the ON/OFF switch for 5 second.
* All lamps blink on the indoor unit.
5. Check the pressure indicated by the
pressure gauge(low pressure side).
* Refer to Low pressure graph.
6. Open the refrigerant tank and fill with refrig-
erant until the rated pressure is reached.
* It is recommended not to pour the refriger-
ant in too quickly, but gradually while
operating a pressure valve.
7. Stop operation of the air conditioner.
8. Close the 3-way valve, disconnect the
pressure gauge, and open the 3-way valve
again.
9. Close the cap of each valve.
Samsung Electronics
Operating Instructions and Installation
Compound
gauge
For mounting
other end of
hose when
not in use
INDOOR
A-UNIT
INDOOR
B-UNIT
INDOOR
C-UNIT
R410A
Suspension hook
High
pressure
gauge
Hand
wheel
Finger tight
fittings
Connected to
high pressure
side
Vacuum
pump
3-11