1. Unit Components
Figure 1 Top view of the refrigerant pipes inside an outdoor unit
H
C
A
CJ2 CJ1
B
F
CJ3
Figure 2 Valve types allocations
I
A: Refrigerant charge port (for automatic
D
charging only)
B: Check joint on the low-pressure side
A port through which additional refrigerant
CJ5
is charged after the completion of
refrigerant oil recovery operation
C: Service port on the liquid valve
G
Connecting port to the refrigerant circuit
• Evacuation port (liquid side)
• A port through which refrigerant for the
D: Service port on the gas valve
Connecting port to the refrigerant circuit
CJ4
• Evacuation port (gas side)
• A port through which refrigerant for the
E
E: A valve to be closed after the completion
of refrigerant oil recovery operation (BV3)
(Be sure to close this valve after the
completion of refrigerant oil recovery
operation.)
F: Liquid valve
G: Gas valve
H: O/T
I: ACC
J: COMP
CJ3: Refrigerant charge port
CJ4: Oil sampling port
CJ5: Refrigerant oil discharge port
2
CJ5
J
CJ4
indoor units is charged
indoor units is charged