4
Push the
button and the setting is defined.
BS3 RETURN
5
When the
button is pushed again, the operation
BS3 RETURN
starts according to the setting.
Refer to the service manual for more details and for other settings.
Confirmation of the set mode
The following items can be confirmed by setting mode 1 (H1P
LED is off)
Check the LED indication in the field marked
1
Indication of the present operation state
x
-
, normal
w
-
, abnormal
c
-
, under preparation or under test operation
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
2
Indication of COOL/HEAT selection setting
When set to COOL/HEAT change-over by each individual outdoor
unit circuit (= factory setting).
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
3
Indication of low noise operation state
x
-
standard operation (= factory setting)
w
-
operation
L.N.O.P
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
4
Indication of power consumption limitation setting
x
-
standard operation (= factory setting)
w
-
operation
DEMAND
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
Installation manual
20
.
L.N.O.P
DEMAND
12.4. Test operation
Do not insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it
will cause injury.
Do not perform the test operation while working on the
indoor units.
When performing the test operation, not only the outdoor
unit, but the connected indoor unit will operate as well.
Working on a indoor unit while performing a test operation
is dangerous.
In the check operation, the following checks and judgement will
be performed:
Check of the stop valve opening
Check for wrong wiring
Check of refrigerant overcharge
Judgement of piping length
It takes ±40 minutes to complete the check operation.
Perform the test operation as decribed in the paragraph "Test
operation procedure" on page 20.
Test operation procedure
1
Close all front panels except the front panel of the electric box.
2
Turn ON the power to all outdoor units and the connected indoor
units.
Be sure to turn on the power 6 hours before operation in order to
have power running to the crank case heater and to protect the
compressor.
3
Make the field setting as described in the paragraph "12.3. Field
setting" on page 18.
4
Press the
button once, and set to the SETTING
BS1 MODE
MODE (H1P LED = OFF).
5
Press and hold the
BS4 TEST
more. The unit will start the test operation.
The test operation is automatically carried out in cooling
mode, the H2P LED will light up and the messages "Test
operation" and "Under centralized control" will display on the
remote controller.
It may take 10 minutes to bring the state of the refrigerant
uniform before the compressor starts.
During the test operation, the refrigerant running sound or
the magnetic sound of a solenoid valve may become loud
and the LED display may change, but these are not mal-
functions.
During the test operation, it is not possible to stop the unit
operation from a remote controller. To abort the operation,
press the
BS3 RETURN
±30 seconds.
6
Close the front panel in order to let it not be the cause of
misjudgement.
7
Check the test operation results by the LED display on the
outdoor unit.
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
Normal completion
x w w x x x x
Abnormal completion
8
When the test operation is fully completed, normal operation will
be possible after 5 minutes.
Otherwise, refer to "Correcting after abnormal completion of the
test operation" on page 21 to take actions for correcting the
abnormality.
button down for 5 seconds or
button. The unit will stop after
CMSQ200+250A7W1B
Air conditioning system
4PW47543-1