Toshiba MM-A0280HT Service Manual page 112

Procedure and Summary of Trial Operation
(3) Cooling operation check
Set the operation mode to
COOL by pushing the operation
switch for 5 seconds or more,
and then check "L" is displayed.
Check each
indoor unit
consecutively.
Is there cool air discharge?
Is air circulation good?
Operate all the units
concurrently.
Is temp. difference of
(NOTE 1)
suction/discharge air good?
Is the supply voltage
good (220V 240V)?
Is the operation current
within ±15% of the catalogue
(NOTE 2)
current value?
(Max. Hz operation)
Is the operation pressure
(NOTE 3)
Trial Operation
Start
Trial operation from
outdoor unit is
also available.
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
normal?
Yes
Normal
113
[
This air conditioner is attached
with reactivation delay timer, so
the operation restarts
2 minutes 30 seconds after it
stopped.
Check operation status of the compressor.
Check louver direction.
Check the supply power voltage.
Check power cable dia.
Check overload of indoor /outdoor
temperature.
Check pipe length and refrigerant amount.
Check the compressor operation Hz, and
outdoor fan operation status.
Is there an abnormal sound of the
compressor?
]
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