Cooling Operation Check - Toshiba HFCR407C Service Manual

(3) Cooling operation check

Set the operation mode to COOL by
pushing the operation switch for 5
seconds or more, and then check "L"
Check each
indoor unit
consecutively.
Operate all the units concurrently.
(NOTE 1)
(NOTE 2)
(NOTE 3)
18
Procedure and summary of trial operation
Start
is displayed.
Is there cool air discharge ?
Yes
Is air circulation good ?
Yes
Is temp. difference of suction/
discharge air good ?
Yes
Is the supply voltage good
(220V 240V) ?
Yes
Is the operation current within
±15% of the catalogue
current value ?
(Max. Hz operation)
Yes
Is the operation
pressure normal ?
Yes
Normal
Trial operation
Trial operation from outdoor
unit is also available.
No
Check operation status of the compressor.
No
No
Check the supply power voltage.
No
Check power cable dia.
No
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 ?
No
134
[
This air conditioner is attached with
reactivation delay timer, so the operation
restarts 2 minutes 30 seconds after it
stopped.
Check louvre direction.
]