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Fujitsu WPYA100LA - User Manual

Fujitsu WPYA100LA
34 pages
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AIR TO WATER HEAT PUMP
MONOBLOC
type
CONTENTS
SPECIFICATION
. . . . . . . . . .. . . . . . . . . . . . . .
2
FUNCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
OPERATION DETAILS
. . . . . . . . . . . . . . . . . .
5
TROBLESHOOTING GUIDE
. . . . . . . . . . . . .
6
PARTS LIST
. . . . . . . . . . . . . . . . . . . . . . . . . .
14ELECTRIC CIRCUIT DIAGRAM
. . . . . . . . .
15EXPLODED VIEW
. . . . . . . . . . . . . . . . . . . . .
16
DISASSEMBLY PROCESS
. . . . . . . . . . .. . .
18
Models
Outdoor unit
WPYA100LA
WPYA080LA

Table of Contents

Questions and Answers

  • E
    Elizabeth GrahamAug 2, 2025
    What to do if Fujitsu WPYA100LA has a gas leakage?
    • K
      Kenneth OlsonAug 2, 2025
      If there is a gas leakage, you should not only refill the required amount of the refrigerant gas but also find out the gas leakage point and mend it. If the service work has to be suspended before mending the leakage points, be sure to collect the refrigerant gas in the unit by using pump then fasten the service ports to avoid any further leakage. Note that poisonous gas may be generated when the leaked refrigerant is exposed to fire.
  • R
    rodriguezkevinAug 11, 2025
    Why should I avoid remodeling Fujitsu WPYA100LA Heat Pump?
    • M
      Michael TaylorAug 12, 2025
      Never remodel the appliance. Use designated parts or accessories to avoid accidents.
  • J
    Joseph JenkinsAug 22, 2025
    Is it OK to extend the power supply cord of my Fujitsu Heat Pump?
    • A
      ashley95Aug 22, 2025
      Do not use a power supply cord that is extended or connected in halfway.

Summary

Functions

Inverter Control

Defrost Control

Anti-freezing Control

Operation Details

Defrosting Operation Details

Details conditions and timing for defrosting operation start and stop, with associated component states.

Troubleshooting Guide

Safety Warnings and Symbols

Provides critical safety warnings (Danger, Warning, Caution) and explains common safety symbols used in the manual.

Error Code Troubleshooting

Lists error codes, affected parts, and methods for checking and troubleshooting unit malfunctions.

Check Following Steps

Fuse Continuity and Voltage Checks

Guides on checking fuse continuity and measuring voltage for fan motor and pump components.

4-Way Valve and Component Resistance Checks

Details on checking the resistance of the 4-way valve, heater for tank, and circulation pump.

Wiring Diagram

Monitor Display Method

Electric Circuit Diagram

Disassembly Process

Service Panel Removal

Main PCB and Display PCB Removal

Instructions for safely removing the main PCB and the display PCB, including connectors and covers.

Top Panel and Reactor Removal

Module PCB and Solenoid Coil Removal

EEV Coil and Front Panel (Left) Removal

Fan Motor and Fan Bracket Removal

Compressor Removal and Precautions

Detailed procedure for compressor removal, including safety precautions and refrigerant handling.

Circulation Pump Removal

Tank Cover and Tank Heater Removal

Tank and Back Panel Removal

Heat Exchanger Removal

Detailed steps for removing the heat exchanger, including pipes, nuts, and terminal block panel.

Manometer and Pressure Relief Valve Removal

Air Purge Valve and Sensors Removal

Suction, Defrost, and Water Sensors Removal

Refrigerant Cycle Precautions

Key precautions for exchanging refrigerant cycle parts like expansion valve and 4-way valve during brazing.

Fujitsu WPYA100LA Specifications

General IconGeneral
ModelWPYA100LA
CategoryHeat Pump
ManufacturerFujitsu
Heating Capacity11000 BTU/h
RefrigerantR410A
Power Supply230V, 1-phase, 60Hz

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