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9-3. Outdoor Unit
9-3-1. 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
Cooling-only
setup
Set position
J805, J806
J807
J808
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 upper limit value of static pressure for duct is 5Pa
or less on 25°C degrees and please use straight duct.
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 4°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
7-10. Defrost control.
When it is needed to lower the maximum value of the compressor
frequency, cut the jumper line. Max. frequency at 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.)
Model
Standard status
When J807 is cut
SP110 SP140 SP160
COOL HEAT COOL HEAT COOL HEAT
53.4 100.2 64.2 100.2 74.4 100.2
53.4 69.6 64.2 75.0 74.4 79.8
High static pressure setup
Existing piping setup
Power save setup
Snow-proof fan control
ON
SW802
1234
∗ all are OFF at shipment.