Service Parts Information 6 : Active Filter; Wo*A100Ldt Models) - Fujitsu WATERSTAGE WS A050DD6 Series Maintenance Document

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Split system single phase type
2.4.6 Service parts information 6 : Active filter module (Only for
WO*A080LDC and WO*A100LDT models)
Check point 1 : Check Open or Short-circuit and Diode (D1)
Remove connector, check the open or short-circuit and the diode in the module.
If it is abnormal, replace ACTIVE FILTER MODULE.
Check point 2 : Check the output DC voltage (between P and N)
Check the output DC voltage (between P and N) of compressor stopping and operating.
If the output voltage of compressor operating is less than the output voltage of compressor stopping,
Active Filter Module is defective.
36
Check the open or short-circuit
Terminal
Tester (+)
(+IN)
(-IN)
P
L1
P
L1, L2
L2
Check the diode
Terminal
Tester (+)
L2
P
Ref. value 1
Specifications for multimeter
Manufacturer : HIOKI
Model name : 3804
Power source : DC9V
→ Replace Active Filter Module.
Resistance value
Tester (-)
(-IN)
360kΩ ±20%
N
(+IN)
720kΩ ±20%
1.40MΩ
L2
(Ref. value 1)
360kΩ ±20%
N
Control Box
1.69MΩ
N
(Ref. value 1)
Resistance value
Tester (-)
1.32MΩ
P
(Ref. value 1)
1.40MΩ
L2
(Ref. value 1)
Ref. value 2
Specifications for multimeter
Manufacturer : YOKOGAWA
Model name : 7534
Power source : DC3V
Maintenance Document 1589-3
0Ω
/
2.28MΩ
(Ref. value 2)
∞Ω
/
1.88MΩ
(Ref. value 2)
/
1.50MΩ
(Ref. value 2)
/
1.51MΩ
(Ref. value 2)

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This manual is also suitable for:

Waterstage ws a100dd6 seriesWaterstage wg a050dd6 seriesWaterstage wg a100dd6 seriesWaterstage wo a060ldc seriesWaterstage wo a080ldc seriesWaterstage wo a100ldt series

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