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AOY14LFBC
Fujitsu AOY14LFBC User Manual
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7 . TROUBLE SHOOTING
R410A
W
ALL
MOUNTED type
INVER
TER
1. When the unit does not operate at all (Operation lamp and T
imer lamp do not light up)
2. Self Diagnosis Function (Either Operation lamp or T
imer lamp is blinking)
* How to operate the self-diagnosis function
* Self- diagnosis table and Check points
3. T
rouble shooting method
* Serial signal check
* IPM protection check
*
Active filter error check
* Refrigeration cycle diagnosis
48
50
Table of Contents
Default Chapter
1
Wall Mounted
1
Table of Contents
2
Electrical Data
5
Fan Motor
5
Noise Level
5
Specifications
5
Dimensions
8
As*9 / 12Lsac, Ao*9 / 12Lsac
9
As*9 / 12Lsbc, Ao*9 / 12Lfbc
10
As*14 / 18Lsbc, Ao*14 / 18Lfbc
11
Refrigerant System Diagram
12
Circuit Diagram
16
Description of each Control Operation
20
Cooling Operation
21
Heating Operation
22
Dry Operation
23
Auto Changeover Operation
24
Indoor Fan Control
25
Outdoor Fan Control
27
Louver Control
28
Compressor Control
29
Timer Operation Control
30
Electronic Expansion Valve Control
32
Test Operation Control
32
Prevent to Restart for 3 Minutes ( 3 Minutes St )
32
Four-Way Valve Extension Select
32
Auto Restart
32
MANUAL AUTO OPERATION (Indoor Unit Body Operation)
33
Compressor Preheating
33
Coil Dry Opeartion Control
33
Defrost Operation Control
34
Off Defrost Operation Control
36
Various Protections
37
Refrigerant Caution -R410A
40
R410A Tools
41
Precaution for Installation
42
Refrigerant Charge
43
Precaution for Servicing
44
New Refrigerant R410A
45
Defference from Conventional Model(R22) and Precautions
48
Trouble Shooting
49
When the Unit Does Not Operate at All
49
Self Diagnosis Function
51
Self-Diagnosis Function and Checking Points
52
Serial Signal Diagnosis
57
Ipm Protection
58
Active Filter Failure
59
Trouble Shooting of Refrigerant Cycle
60
Appending Data
61
Jumper Setting of Indoor Unit and Outdoor Unit
61
Outdoor Unit Pressure Value and Total Electric Current Curve
61
Thermistor Resistance Values
61
Installation Manual
71
For Authorized Service Personnel Only
73
Outdoor Unit Installation
74
Air Purge
74
Cutting the Hole in the Wall for the Connecting Piping
75
Installing the Wall Hook Bracket
75
Forming the Drain Hose and Pipe
75
Installing the Indoor Unit
76
Connecting the Piping
76
Indoor Unit Wiring
76
Outdoor Unit Wiring
77
Front Panel Removal and Installation
78
Test Running
78
Customer Guidance
78
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Fujitsu AOY14LFBC Specifications
General
Brand
Fujitsu
Model
AOY14LFBC
Category
Air Conditioner
Language
English
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