-
2
4
-
'10 • PAC-SM-137
A
(7) Silent
mode
(a) As “Silent mode start” signal is received from the remote controller, it operates by dropping the outdoor unit fan tap and
the compressor speed (frequency).
(b)
F
or details, refer to items (1) and (4) above.
(8) Test
run
(a) It is possible to operate from the outdoor unit using the dip switch on the outdoor unit control PCB.
SW3-3
(SW5-3)
ON
SW3-4
(SW5-4)
O
FF
Cooling test run
ON
Heating test run
O
FF
Normal and end of test run
Make sure to turn SW3-3 (SW5-3) to O
FF
after the end of operation.
Note (1) Value in (
) are for the model 71.
(b) Test run control
1)
Operation is performed at the maximum compressor speed (frequency), which is determined for each model.
2)
E
ach protective control and error detection control are effective.
3)
If SW3-4 (SW5-4) is switched during test run, the compressor is stoped for once by the stop control and the cooling/
heating operation is switched.
Note (1) Value in (
) are for the model 71.
4)
Setting and display of remote controller during test run
Item
Mode
Contents of remote controller setting/display
Cooling test run
Setting temperature of cooling is 5°C.
Heating test run
Setting temperature of heating (preparation) is 30°C.
(9) Pump-down
control
Turning ON the pump-down switch SW1 (SW9) for 2 seconds during the operation stop or anomalous stop (excluding the
thermostat O
FF
), the pump-down operation is performed. (This is invalid when the indoor unit is operating. This is effective
even when the indoor unit is stopped by the anomalous stop or the power supply is turned O
FF
.)
Note (1) Value in (
) are for the model 71.
(a) Control
contents
1)
Close the operation valve at the liquid side. (It is left open at the gas side.)
2)
Compressor is started with the target speed (frequency) at 71:62, 100:55, 125
・
140:45 rps in the cooling mode.
3)
Red and green lamps (L
E
D) flash continuously on the outdoor unit control PCB.
4)
E
ach of protection and error detection controls, excluding the low pressure control, anti-frost control and dewing
prevention control, is effective.
5)
Outdoor unit fan is controlled as usual.
6)
E
lectronic expansion valve is fully opened.
(b) Control ending conditions
Stop control is initiated depending on any of the following conditions.
1)
Low pressure of 0.087MPa or lower is detected for 5 seconds continuously.
a) Red
L
E
D: Light, Green L
E
D:
F
lashing, Remote controller: Displays stop.
b) It is possible to restart when the low pressure is 0.087MPa or higher.
c)
E
lectronic expansion valve (cooling/heating) is kept fully open.
2)
Stop by the error detection control
a) Red
L
E
D:
F
lashing, Green L
E
D:
F
lashing
b) Restart is prohibited. To return to normal operation, reset the power supply.
c)
E
lectronic expansion valve (cooling/heating) is left fully open.
3)
When the cumulative operation time of compressor under the pump-down control becomes 5 minutes.
a) Red
L
E
D: O
FF
, Green L
E
D:
F
lashing, Remote controller: Stop
b) It is possible to pump-down again.
c)
E
lectronic expansion valve (cooling/heating) is left fully open.
Note (1) After the stop of compressor, close the operation valve at the gas side.
Caution: Since pressing the pump-down switch cancels communications with the indoor unit, the indoor unit and the
remote controller display “Transmission error –
E
5”. This is normal.
Summary of Contents for FDEN125VNXVD
Page 101: ... 101 10 PAC SM 137A ...
Page 106: ... 106 10 PAC SM 137A 2 Models FDC100 140VNX 100 140VSX ...
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Page 114: ... 114 10 PAC SM 137A 5 4 Electric wiring work installation ...
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