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Fujitsu ARHC72LHTA User Manual

Fujitsu ARHC72LHTA
29 pages
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SPLIT TYPE
AIR CONDITIONER
DUCT TYPE (50Hz)
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . .
1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . .
2
CIRCUIT DIAGRAM
. . . .
5
ERROR DETECTION
. . .
11
INDOOR PCB CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . . .
6
OUTDOOR PCB CIRCUIT DIAGRAM
. . . . . .
7
REFRIGERANT SYSTEM DIAGRAM
. . . . . . . . . . . . . . .
17
PARTS (INDOOR UNIT)
. . . . . . . . . . . . .
19
PARTS (OUTDOOR UNIT) . . . . . . . . . . .
22
ACCESSORIES. . . . . . . . . . . . . . . . . . . .
27
Indoor unit Outdoor unit
ARHC72LHTA AOHA72LALT
ARHC90LHTA AOHA90LALT
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Fujitsu ARHC72LHTA Specifications

General IconGeneral
Cooling Capacity7.2 kW
Heating Capacity8.0 kW
TypeSplit Type
Seasonal Energy Efficiency Ratio (SEER)6.10
Power Supply230V, 50Hz, 1 Phase

Summary

Specifications

Electrical Data

Details electrical parameters like capacity, power, current, and efficiency.

Noise Level

Provides sound pressure levels for indoor and outdoor units.

Compressor and Refrigerant Details

Covers compressor type, refrigerant used, and charge quantities.

Fan Motor Specifications

Lists technical details for fan motors.

Unit Dimensions and Weights

Lists overall dimensions and weights for indoor and outdoor units.

Indoor Unit Dimensions

ARHC72LHTA Unit Views and Measurements

Displays various views with detailed dimensions for the ARHC72LHTA indoor unit.

ARHC72LHTA Drain Pipe Specifications

Indicates the inside and outside diameters of the drain pipe.

Indoor Unit Dimensions

ARHC90LHTA Unit Views and Measurements

Presents detailed views and dimensions for the ARHC90LHTA indoor unit.

ARHC90LHTA Drain Pipe Specifications

Specifies the drain pipe diameter for the ARHC90LHTA unit.

Outdoor Unit Dimensions

Unit Views and Measurements

Shows top, front, rear, and side views with detailed dimensions for the outdoor unit.

Refrigerant System Diagram

System Flow and Components

Illustrates the refrigerant flow path and components for both units.

Thermistor Identification

Lists and explains the various thermistors used in the system.

Circuit Diagrams

Outdoor Unit Electrical Circuit

Details the electrical connections and components for the outdoor unit.

Indoor Unit Electrical Circuit

Shows the electrical connections and components for the indoor unit.

Indoor PCB Circuit Diagrams

Control Unit and PCB Layouts

Diagrams the control unit and its main PCBs (Control, Power Supply, Filter).

Main PCB Diagram

Detailed Main PCB Schematic

Provides a detailed schematic of the main printed circuit board.

Indoor Power Supply and Filter PCBs

Power Supply PCB Diagram

Shows the schematic for the indoor unit's power supply PCB.

Filter PCB Diagram

Presents the schematic for the indoor unit's filter PCB.

Outdoor PCB Circuit Diagrams

Inverter Assembly and Main PCBs

Diagrams the inverter assembly and main PCBs for the outdoor unit.

Transistor PCB Diagram

Details the transistor PCB schematic for the outdoor unit.

Outdoor PCB Diagrams

Main PCB 2 Diagram

Shows a detailed schematic of the second main PCB for the outdoor unit.

Outdoor PCB Diagrams

Unit Component Schematics

Details schematics for various components like thermistors and switches.

Outdoor Filter PCB Diagrams

Main Filter PCB Schematic

Presents the schematic for the main filter PCB of the outdoor unit.

Outdoor Filter PCB Diagrams

Inverter Filter PCB Schematic

Shows the schematic for the inverter filter PCB of the outdoor unit.

Error Detection

Troubleshooting Error Codes

Lists error codes and their descriptions for troubleshooting.

Outdoor Unit Error Display

LED Indicators and Error Codes

Explains LED indicators and error codes for the outdoor unit.

Indoor Unit Parts

Assembly Components

Identifies parts like Top Plate, Front/Rear Panels, and Evaporator.

Motor and Fan Components

Lists parts related to the motor, fan, and casing assembly.

PCB and Control Components

Details control box, PCBs, terminals, and reactors.

Outdoor Unit Parts

Chassis and Panel Components

Identifies parts like Base, Panels, Pillars, and Fan Guard.

Fan Motor and Compressor Box

Details fan motor and compressor box components.

Refrigerant Piping Components

Lists valve plates, expansion valves, and oil separators.

Compressor and Solenoid Components

Details compressor, solenoid valves, and pressure sensors.

Control Board Components

Lists control box, PCBs, reactors, and bus bars.

Accessories

Indoor Unit Accessories and Optional Parts

Lists items like special nuts, washers, remote controls, and sensors.

Outdoor Unit Accessories

Details joint pipes and binders for outdoor unit installation.

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