Toshiba RAV-SM564UT-E Service Manual page 85

2) Heating fan control

The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency.
(From Min. W1 to Max. are controlled according to the following table.)
‚
During 3 minutes after start-up, the fan is fixed
with the maximum fan tap corresponding to zone
in the following table.
After then the fan is controlled by temperature of
TE sensor.
ƒ
If status, TE > 24°C continues for 5 minutes, the
operation stops.
This status is same to the usual Thermo-OFF
which has no alarm display, and the fan restarts
after 2 minutes and 30 seconds.
This intermittent operation is not abnormal.
„
When the above status
considered that the filter of suction part of the
indoor unit is stain.
Clean the filter and then restart the operation.
10°C ≤ TO
Maximum
5. Coil heating control
1) This control function heats the compressor by turning on the stopped compressor instead of a case heater.
It purposes to prevent slackness of the refrigerant inside of the compressor.
2) As usual, turn on power of the compressor for the specified time before a test run after installation,
otherwise a trouble of the compressor may be caused.
As same as a test run, it is recommended to turn on power of the compressor beforehand when starting
operation after power of the compressor has been interrupted for a long time.
3) Coil heating is controlled by TD and TE sensor.
4) The power is turned off when TD is 30°C or more.
TE [˚C]
0
–1
–6
–7
Tel: 01823 665660
Heronhill - for all your Toshiba requirements
‚
occurs frequently, it is
Temp. range
5 ≤ TO < 10°C
–5 ≤ TO < 5°C
TO < –5°C
TO error
No power-ON
Continuous ON (L)
Continuous ON (H)
– 85 –
www.heronhill.co.uk
TE [˚C]
24
21
18
15
38.9Hz ≤ ≤ ≤ ≤ ≤ f < 67.6Hz
f < 38.9Hz
W7 W8
WA WB
WE WF
WE WF
WE WF
L
H
–2 tap/20 seconds
STOP timer count
–2 tap/20 seconds
–1 tap/20 seconds
rpm hold
+1 tap/20 seconds
67.6Hz ≤ ≤ ≤ ≤ ≤ f
W9
WD
WF
WF
WF
SP40, SP45
10W and equivalent
30W and equivalent
Fax: 01823 665807