7
GB
7
Check for successful completion of the refrigerant oil recovery operation.
Turn the dipswitches 1-4, 1-5, 1-6, and 1-7 to ON to verify that the refrigerant oil recovery operation is completed. “S-1” or “r-1” on
the outdoor unit’s LED indicates a successful completion.
“S-1” “r-1”: The refrigerant oil recovery operation is successfully completed. Go to the next procedure.
“S-1” “r-0”: The refrigerant charge adjustment is not completed, but regular air conditioning operation can be started. If there was excess
refrigerant that had not been charged, charge it through the low-pressure check joint (CJ2) during the air conditioning operation.
“S-0” “r-1”: The refrigerant oil recovery operation is not completed. To restart the refrigerant oil recovery operation, set the dipswitches 3-1 and
4-8 to ON in that order.
“S-0” “r-0”: The refrigerant oil recovery operation is not completed. To restart the refrigerant oil recovery operation, set the dipswitches 3-1 and
4-8 to ON in that order.
8
Disconnecting the cylinder
After completing the oil recovery operation, close the valve on the cylinder, and disconnect the cylinder within five minutes.
9
Recording the amount of refrigerant that was charged
Write on the control box panel the amount of refrigerant charged.
0
Closing the valve on the connecting port to the refrigerant circuit
Close BV3 completely. The refrigerant oil recovered from the existing pipes is sealed in an oil recovery vessel.
Procedure 8
LED
Procedure 9
Procedure 10
Procedure 11
S
O
O
S
Compressor side
Oil-recovery side
<Factory setting> <After the oil-recovery test run>
A
A
B
C
Turn the valve clockwise by 90 degrees.
* Use a tool if necessary.
A
Lever
B
(Cap tightening torque: 20-25N•m
(200-250 kg•cm))
C
Rotation direction
WT06218X01_en.fm Page 7 Tuesday, December 14, 2010 4:19 PM
