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11-4. Outdoor Unit
11-4-1. Refrigerant Recovery Control
The “ozone destruction coefficient” of HFC refrigerant is 0 and the
discharge regulation is set as anathermal effect gas.
To this model, a switch which can perform the refrigerant recovery
(pump down) by the outdoor unit is mounted so that it is easy to react
against the environment at reinstalling or rejection time.
[Operation method]
1) Set the mode of the indoor unit to fan mode.
2) Set all DIP switch SW804 to OFF (Initial status) and then push the
button switch SW801 for approx. 1 second. The cooling operation
starts. (During this time, D805 (Green LED) flashes.)
This operation finishes by 10 minutes.
3) After operation for 3 minutes or more, close valve at liquid side.
4) After recovery of refrigerant, close valve at gas side.
5) Push the button switch SW801 again for approx. 1 second.
The outdoor unit stops.
6) Stop the indoor unit and then turn off the power supply.
11-4-2. Various setting on outdoor unit (Existing piping, Power save, Cooling-only, etc.)
The following settings are available by DIP switch setup and jumper line setup.
Function
High static
pressure setup
Existing piping
setup
Power save setup
Snow-proof fan
control
Defrost time
change
Max. frequency
change
Set position
J805, J806
J807
Control contents
Turn the switch to ON when mounting a duct to the discharge
port of the outdoor unit. Add 3 taps to the upper limit value of the
outdoor fan tap.
The operation is performed with
(Max: Upper fan: 890 rpm / Lower fan: 910 rpm (WF)).
In this case, the outdoor noise level may increase.
Turn the switch to ON when Ø19.1 is used for the existing pipe.
In this case, the heating capacity may lower according to outside
temp. and indoor temp. in heating operation.
Turn the switch to ON when using the power save function.
The control to lower the compressor frequency (Approx. –10%) is
performed by indoor heat exchanger temp. in heating operation.
When snow enters from clearance of the fan guard or heat
exchanger into blast path and it is accumulated, the control to
prevent generation of motor lock is validated.
When outside temp. is below 0°C though the compressor stops,
the outdoor fan operates with W5.
The defrost interval is cut to shorten it than the standard status.
For contents of control and cutting method, refer to
Section 8-2-10. Defrost control.
When it is needed to lower the maximum value of the
compressor frequency, cut the jumper line.
Max. frequency at cooling/heating is lowered.
In this case the Max. capacity decreases.
Max. frequency of compressor
When using the air conditioner as a cooling-only conditioner, cut
the jumper line.(An air conditioner can be changed to cooling-
only conditioner by “0F” of DN code on the remote controller.)
Cooling-only setup J808
Model
Standard status
When J807 is cut
RAV-SP1104 RAV-SP1404
COOL HEAT COOL HEAT
53.4 71.4 64.2 90.6
53.4 64.2 64.2 72.0
1234
ON
1234
ON
1234
ON
D800
D801
D802
D803
D804
D805
SW801: Push for 1 second.
W804: All OFF (As initial status)
The D805 (Green LED)
flashes.
1234
ON
High static pressure setup
Existing piping setup
Power save setup
Snow-proof fan control
SW802
∗ all are OFF at shipment.