Test Operation; Discharge Temperature Control - Toshiba RAS-25U2FVG-ND Service Manual

Item Operation flow and applicable data, etc.
12. Test When keeping [OPERATION] button pressed for
operation 10 seconds or more, the temporary [COOL] operation
is performed.
Filter lamp ON
NO
Did you press [OPERATION] button
for 3 seconds or more?
YES
Did you press [OPERATION] button
for 10 seconds or more?
NO
Switch to [AUTO RESTART] control.

13. Discharge temperature control

Td value
Judges as an error and stops the compressor.
117°C
Reduce the compressor speed.
105°C
Reduce slowly compressor speed.
103°C
Keeps the compressor speed.
100°C
If the operation is performed with lower speed than one
commanded by the serial signal, speed is slowly raised
up to the commanded speed.
93°C
Operates with speed commanded by the serial signal.
YES
Press [OPERATION] button.
NO
Previous setting operation
YES
Test [COOL] Operation
Control operation
- 44 -
Description
1) When pressing [OPERATION] button, the
previous setting operation starts.
2) When keeping [OPERATION] button pressed
for 3 seconds or more, Pi, Pi, Pi sound is
heard and [AUTO RESTART] control is
changed.
3) When keeping [OPERATION] button pressed
for 10 seconds or more, "Pi" sound is
heard and the test [COOL]
operation starts.
4) If the filter lamp goes on, press [OPERTION]
button to go off the filter lamp, and then
press [OPERTION] button again.
5) To stop the test operation, press
the button again.
1. Purpose
This function detects error on the
refrigerating cycle or error on the com-
pressor, and performs protective control.
2. Operation
• Control of the compressor speed
The speed control is performed as
described in the left table based upon
the discharge temperature.