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Outdoor unit
16. Outdoor Unit Setting
16-1. Refrigerant recovery control
Although HFC refrigerant is "Ozone depletion potential = 0", emission control is applied to it as a greenhouse effect
gas.
This model has a switch for the outdoor unit to perform an environment-friendly refrigerant recovery operation
(pump down) when the model is replaced or discarded.
[How to operate]
1 Remove the water in the hydro unit.
(With the water remained in the hydro unit, performing
refrigerant recovery may freeze the water and burst the
unit.) *1
2 Set all the SW804 dip switches to OFF (initial status),
and press the push-button switch SW801 for approx.
1 second.
A cooling operation starts. (During the operation, D805
(green LED) blinks.
Note that this operation lasts for 10 minutes.
3 After 3 minutes has passed, close the liquid-side
valve.
4 After the refrigerant recovery is completed, close the
gas-side valve.
5 Press again the push-button switch SW801 for
approx. 1 second. The outdoor unit stops operation (cooling).
*1 : If can not remove the water
Operate the circulation pump, to prevent freezing.
1.Turn off the power. (hydro and outdoor unit)
2.Set SW06-2 “ON”.
3.Turn on the power. (hydro and outdoor unit)
4.Rotate switch SW01 to position “1” and press tactile switch SW07 for 5 sec, or longer.
5.Rotating the rotary SW01 to position “16”.
6.If you finish refrigerant recovery operation, set SW06-2 “OFF” and set SW01 “1”.
1234
ON
1234
ON
1234
ON
D800
D801
D802
D803
D804
D805
SW804 All OFF (Initial status)
SW801 Press for
approx. 1 sec
SW805 (Green LED) blinks.
<HWS-P805HR-E, P1105HR-E>
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