High Wall, Heat Pump Type
Service Manual
45
Toshiba
8-12-3. Operation
The sequence that PURE indicator (Orange) is turned
on are described in the following flowchart.
1) If the air purifying error input was detected by 5
times or under, turn on the purifier again
approx. 10 minutes after and judge it again.
2) If the air purifying error input was detected by 5
times or more and 1000 H timer counts up,
determine the error and turn on the PURE
indicator (Orange).
3) The FILTER indicator keeps lighting even if the
operation is stopped by the remote controller.
The timer is stored in memory of the
microcomputer, and the operation time is
cleared by filter RESET button on the indoor
unit.
(FILTER indicator goes off.)
[1] Reset by RESET button.
[2] Reset by RESET button or by the stop direction
from the remote controller.
NOTE
When the breaker is turned [ON] or RESET button is
pushed while the FILTER indicator is turned on, the air
purifier is not turned on until the integrated operation
time of the indoor fan exceeds 1 hour after operation
start.
It is the safety measures considering an incomplete
drain when electric dust collector has been cleaned
with water.
8-13.Discharge
Temperature Control
8-13-1. Purpose
This function detects error on the refrigerating cycle or
error on the compressor, and performs protective
control.
8-13-2. Operation
Control of the compressor speed
The speed control is performed as described in the
table below based upon the discharge temperature.
Air purifying operation
PURE indicator (Blue) ON
Air purifier ON
Error input is detected
Air purifier OFF
PURE indicator (Orange) ON
Error input was detected
5 times or more
Approx. 10 minutes
passed from the error
input was detected
NO
NO
YES
YES
NO
NO
YES
Operation indicator ON
Air purifier power
estimates 1000H
YES
[1]
[2]
TD value
117°C
112°C
108°C
105°C
98°C
Control operation
Judges as an error and stops the compressor.
Reduce the compressor speed.
Reduce slowly compressor speed.
Keeps the compressor speed.
If the operation is performed with lower speed than
one commanded by the serial signal, speed is slowly
raised up to the commanded speed.
Operates with speed commanded by the serial signal.
+00A08-010_01EN_SVM_HighWallHeatPump.book Page 45 Wednesday, March 4, 2009 11:22 AM
