Compressor Speed Control; Cord Heater Control (-Nd Model Only); Purpose; Operation - Toshiba RAS-07PKVP-E Service Manual

High Wall, Heat Pump Type
8-19-5. Compressor Speed
Control
The compressor speed control is carried out according
to 8-5.Capacity Control.
Refer to 8-5.Capacity Control.
8-20.Cord Heater Control
(-ND Model Only)

8-20-1. Purpose

Base plate freeze prevention of the outdoor unit.

8-20-2. Operation

As shown in the figure below, the base plate freeze
preventive heater is controlled by temperature of the
outside temperature sensor (TO).
Base plate cord heater control
TO temp.
9ºC
When TO sensor is defective or the air conditioner is in
cooling operation, heater output is turned off.
Heater output
OFF
4ºC
ON
(Equivalent to 75W)

8-21.Auto Restart Function

This indoor unit is equipped with an automatic
restarting function which allows the unit to restart
operating with the set operating conditions in the event
of a power supply being accidentally shut down.
The operation will resume without warning three
minutes after power is restored.
This function is not set to work when shipped from the
factory. Therefore it is necessary to set it to work.
8-21-1. Setting the Auto Restart
Function
To set the auto restart function, proceed as follows:
1) The power supply to the unit must be on; the
function will not set if the power is off.
2) Push the [RESET] button located in the centre
of the front panel continuously for three
seconds.
3) The unit receives the signal and beeps three
times.
4) The unit then restarts operating automatically
in the event of power supply being accidentally
shut down.
Push [RESET] button for more than three seconds.
(Less than 10 seconds)
When the unit is stand-by (Not operating)
The unit is on standby.
(Push [RESET] button
for more than 3 seconds.)
The unit starts to operate.
(After approx. 3 seconds)
The unit beeps three times
and continues to operate.
If the unit is not required to operate at this time, push
[RESET] button once more or use the remote controller
to turn it off.
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Service Manual
The green indicator is on.
The green indicator
flashes for 5 seconds.