Toshiba RAV-SM304SDT-TR Service Manual page 133

12-4-2. 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.
<SP56>
Function
Existing piping
SW801
setup
ON
Power save
setup
1
Cooling-only
setup
<SP80>
Function
High static
pressure setup
SW802
Existing
piping setup
Power save
setup
∗ all are OFF at shipment.
Snow-proof
fan control
Defrost
time change
Max. frequency
change
Cooling-only
setup
Setting position
2 3
Existing pipe setting
Power saving setting
Cooling only setting
Set position
High static pressure setup
Existing piping setup
Power save setup
Snow-proof fan control
J805, J806
J807
J808
Control contents
Turn off the switches. (Ø19.1 existing pipes cannot be used.)
When using the power saving function, turn on switches.
The control to lower the compressor frequency (approx. -10%) is performed
by indoor heat exchanger temp. in heating operation.
When using the outdoor unit as a cooling-only machine, turn on switches.
("OF" of DN cord on the remote controller also can be used for changing the
machine to the cooling-only model.)
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 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
9-1-10. 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
Model
Standard status
When J807 is cut
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.)
– 133 –
RAV-SP80
COOL HEAT
72.0 99.6
72.0 79.2