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4. REFRIGERANT FLOW DIAGRAM
Indoor Unit
SAP – K91AHA
Indoor unit
Indoor Unit
SAP – K121AHA
Indoor unit
Insulation of Refrigerant Tubing
IMPORTANT
Because capillary tubing is used in the outdoor unit, both the
wide and narrow tubes of this air conditioner become cold. To
prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a
proper insulation material. The thickness of the insulation
should be a min. 8 mm.
CAUTION
Wide tube
service
Wide tube
valve
Muffler
O.D.
ø9.52 mm
(3/8 ")
Narrow
tube
service
Narrow tube
valve
O.D.
ø6.35 mm
(1/4")
Wide tube
service
Wide tube
valve
Muffler
O.D.
ø12.7 mm
(1/2 ")
Narrow
tube
service
Narrow tube
valve
O.D.
ø6.35 mm
(1/4")
After a tube has been insulated,
never try to bend it into a narrow
curve because it can cause the tube
to break or crack.
Outdoor Unit
Outdoor unit
Accumulator
4-way
valve
Capillary tubes
(both for heating
Capillary tube
and cooling)
(for heating)
Strainer
Check
valve
Outdoor Unit
Outdoor unit
Accumulator
4-way
valve
Capillary tubes
(both for heating
and cooling)
Receiver
tank
12
SAP – C91AHA
Cooling cycle
Heating cycle
SAP – C121AHA
Cooling cycle
Heating cycle
Insulation
Thickness:
Min. 8 mm
Wide tube
Thickness:
Min. 8 mm
Narrow tube
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