Fujitsu AJ**A72LBTF Manuals

Manuals and User Guides for Fujitsu AJ**A72LBTF. We have 2 Fujitsu AJ**A72LBTF manuals available for free PDF download: Service Manual, Installation Instruction Sheet

Fujitsu AJ**A72LBTF Service Manual (323 pages)

Multi Air Conditioning System for Buildings

Brand: Fujitsu | Category: Air Conditioner | Size: 65.04 MB

Service Manual
1
Table of Contents
2
1 Test Run

6
2 Function of Printed Circuit Board

13
- PCB Layouts
  
  14
- Microprocessor Function List
  
  24
3 Inverter Control

58
- DC Inverter Control Method
  59
- Inverter Block of Outdoor Unit
  59
- Voltage Conversion Chart
  59
- Basic Circuit of 3 Phase Inverter
  60
- PWM Control (General Consideration)
  60
  - Rectangularwave Inverter
    60
  - Sinewave Inverter (for V Series)
    60
- Circuit Description
  
  61
  - Filter PCB
    61
  - Current Transformer
    61
  - IGBT (Insulated Gate Bipolar Transistor)
    61
  - Power Relay & Resistor
    61
  - Coil (Reactor)
    61
  - Smoothing Capacitor
    61
  - Outdoor Unit Operation Control
    62
4 Outdoor Unit Operation Control

63
- Input / Output List
  
  63
- Compressor Operation
  
  64
- Fan Control
  
  67
  - Cooling Operation
    67
  - Heating Operation
    67
- Expansion Valve Control
  
  68
- Special Operation
  
  68
  - Snow Falling Protection Fan Mode
    68
  - Oil Recovery Operation
    68
  - Oil Balance Operation
    69
  - Pre-Heat Operation
    70
  - Defrost Operation Control
    71
  - Protective Function List
    72
5 Indoor Unit Operation

74
- "AUTO" Position
  75
- Dry Operation
  75
- Fan Control Info
  75
- Fan Speed Setting
  75
- Master Control
  
  76
  - Operation Mode Control
    76
  - Auto Changeover
    76
    
    "COOL" Position
    77
    
    "Heat" Position
    77
    
    "FAN" Position
    77
- Louver Control
  
  78
- Electronic Expansion Valve Control
  
  81
- Drain Pump Operation
  
  81
- Function
  
  82
  - Auto Restart
    82
  - Icing Protection Control
    82
  - Oil Recovery Operation
    82
- Timer Control
  
  83
  - Wireless Remote Controller
    83
    
    Program Timer
    83
    
    Sleep Timer
    83
    
    Group Remote Controller Info
    85
    
    Weekly Timer
    85
  - Wired Remote Controller
    87
    
    To Start/Cancel the WEEKLY Timer Operation
    88
    
    To Set the DAY off (for a Holiday)
    88
    
    To Set the Temperature SET BACK Timer
    89
    
    To Start/ Cancel the Temperature SET BACK Timer Operation
    89
6 Trouble Shooting

90

Fujitsu AJ**A72LBTF Installation Instruction Sheet (36 pages)

Multi Air Conditioning System for Buildings (VRF System)

Brand: Fujitsu | Category: Air Conditioner | Size: 1.47 MB

Table of Contents
1
1 Safety Precautions

2
2 Precautions for Using the Alternative Refrigerant

3
3 Accessories

4
4 Installation Work

5
- Selecting an Installation Location
  5
- Transporting the Product
  6
- Installation Dimensions
  7
- Installation the Unit
  9
- System Layout
  10
- Pipe Selection
  11
- Pipe Installation
  12
- Installing Insulation
  17
- Drain Processing
  17
- Electrical Wiring
  18
- Field Setting
  23
- Rotary Switch Setting
  26
5 Charging with Refrigerant

28
- Sealing Test
  28
- Vacuum Process
  29
- Additional Charging
  29
6 Test Run

31
- Pre-Test Run Check Items
  31
- Test Run Method
  31
- Checklist
  31
7 Error Display

32
- Normal Operation Mode
  32
- Error Operation Mode
  33
8 Pump down

34
9 Option Parts

35
10 Information

36

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Fujitsu AJ**A72LBTF Manuals

Fujitsu AJ**A72LBTF Service Manual (323 pages)

Table of Contents

1 Test Run

Test Run Method

Test Run Control

2 Function of Printed Circuit Board

PCB Layouts

Microprocessor Function List

3 Inverter Control

Circuit Description

4 Outdoor Unit Operation Control

Input / Output List

Compressor Operation

Fan Control

Expansion Valve Control

Special Operation

5 Indoor Unit Operation

Master Control

Louver Control

Electronic Expansion Valve Control

Drain Pump Operation

Function

Timer Control

6 Trouble Shooting

Service Information

Service Parts Information

Characteristics of Sensors

Wiring Diagram

Outdoor Internal Layout

Model Designation

Fujitsu AJ**A72LBTF Installation Instruction Sheet (36 pages)

Table of Contents

1 Safety Precautions

2 Precautions for Using the Alternative Refrigerant

3 Accessories

4 Installation Work

5 Charging with Refrigerant

6 Test Run

7 Error Display

8 Pump down

9 Option Parts

10 Information

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