Samsung ASH180UE, Service Manual

Page: 17 / 54

Samsung Electronics
3-11
Operating Instructions and Installation
3-2-2(i) Refrigerant Refill
• Fill the airconditioner with coolant, or refill when necessary during use.
1. Purge air(for new installation only).
3. Connect the tank to refill with Refrigerant
7. Stop operation of the airconditioner.
9. Close the cap of each valve.
8. Close the 3-way valve, disconnect the
pressure gauge, and open the 3-way
valve again.
4. Set the unit to cool operation mode.
5. Check the pressure indicated by the
pressure gauge(low pressure side).
* Standard pressure is should be
4.0~5.0kg/cm
2
in a reqular,
high operation mode.
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.
6. Open the coolant tank and fill with coolant
until the rated pressure is reached.
* It is recommended not to pour the
coolant in too quickely, but gradually
while operating a pressure valve.
Outdoor Unit
Suspension
hook
High
pressure
gauge
Hand
wheel
Finger
tight
fittings
Connected to
high pressure
side
Compound
gauge
2-way valve
3-way valve
For mounting
other end of
hose when
not in use
Charging
line