6
GB
6
Refrigerant oil recovery operation
Set the dipswitches 3-1 and 4-8 to ON in that order. The compressor turns on, and oil recovery operation starts.
The refrigerant oil recovery operation is explained in the next page. Wait for the operation to be automatically completed.
* If there was excess refrigerant that had not been charged at “
2
Refrigerant charging”, charge it during oil recovery operation at step 4 (cooling
operation). After charging the refrigerant, close the valve on the refrigerant cylinder. (Even when the required amount of refrigerant is already
charged, refrigerant charge is automatically adjusted.)
* If the cylinder runs out of refrigerant during the refrigerant oil recovery operation, continue the operation and replace the cylinder.
* If the cumulative oil recovery operation hour is more than three and a half hours, turn the dipswitches 4-8 and 3-1 to OFF to stop the operation
and turn the dipswitches 4-7 on the units (OC) to OFF.
Wait for the operation to be automatically completed.
*
Refer to the table at right for the maximum amount of refrigerant charge.
Do not exceed the maximum amount.
If the refrigerant oil recovery operation does not finish after the maximum
amount of refrigerant is charged, close the valve on refrigerant cylinder, and wait
for the operation to be completed automatically.
* If the cylinder runs out of refrigerant during the refrigerant oil recovery operation,
continue the operation and replace the cylinder.
I
If more than the amount of refrigerant that you calculated is charged into the system in auto-charge mode, then there is no problem if you wish to
close the cylinder valve while the unit is operating. The unit will stop operating of its own accord.
If the length or diameter of the refrigerant pipe is known, please make note of the following.
Procedure 6
Procedure 7
Outdoor unit capacity and the maximum
amount of refrigerant charge
Outdoor unit
capacity
Maximum amount of refrigerant charge
(except for the indoor units and
BC controllers) (kg)
RP200, 250, 300
20.0
SW5
SW4
SW2
SW1
SW3
OFF ON
1
4
2
3
5
6
8
7
9
10
SW3
SW3-1
Address switches
Close the panel at
bottom front of the
unit.
LED monitor
Each dipswitch has 1 to 10 switches from
the top. (OFF-left, ON-right)
(e.g., SW3-1 is the top switch of SW3.
The figure at left indicates that only SW3-1
is set to ON.)
Dipswitches
WT06218X01_en.fm Page 6 Tuesday, December 14, 2010 4:19 PM
