Contents - service manual
- Table of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- Table Of Contents
- about this manual
- Part 1 System Outline
- Table Of Contents
- What Is in This Chapter?
- FCQ35, 50, 60, 71B
- FCQ100, 125, 140D
- FFQ25, 35, 50, 60B
- FBQ35, 50B
- FBQ60, 71B
- FBQ100, 125B
- FHQ35, 50B
- FHQ60, 71B
- FHQ100B
- FHQ125B
- FUQ71B
- FUQ100, 125B
- FAQ71B
- FAQ100B
- FDEQ71, 100B
- FDEQ125B
- specifications
- technical specifications
- Indoor Piping
- Pipe Connection Diameters
- Piping Components
- Part 1
- FCQ35, 50, 60B
- FCQ71, 100, 125B
- FCQ71, 100, 125, 140D
- FBQ35, 50, 60B
- FBQ71B
- FDQ125, 200, 250B
- FHQ35, 50, 60B
- FHQ71, 100, 125B
- FUQ71, 100, 125B
- FDEQ71B
- FDEQ100B
- Part 1
- FCQ100, 125B
- FCQ71, 100, 125 140D
- FBQ35, 50, 60, 71, 100, 125B
- FHQ35, 50, 60, 71, 100, 125B
- FDEQ71, 100, 125B
- FBQ35, 50, 60, 71B & FDEQ71B
- FBQ100, 125B & FDEQ100, 125B
- Part 2
- Simulated Operation Function
- functions of thermistors
- forced operating mode (emergency operation)
- outdoor unit identification function
- simulated operation function
- restart standby
- automatic restart
- using conditions for remote control thermostat
- forced thermostat off
- freeze prevention function
- pmv control
- thermostat control
- drain pump control
- condensation avoidance control
- fan and flap operations
- indoor unit fan control
- Additional Checks for Troubleshooting
- What Is in This Chapter
- troubleshooting
- overview of general problems
- equipment does not operate
- equipment operates but does not provide heating
- equipment discharges white mist
- equipment produces loud noise or shakes
- equipment discharges dust
- swing flap does not operate
- Troubleshooting by LED Indications on the Indoor Unit
- system malfunctions
- Overview of the Indoor Safety Devices
- Malfunction of Transmission between Indoor and Outdoor Unit (U4 or UF)
- Test Run Checks
- Part 4
- how to change the field settings with the wired remote control
- how to change the field settings with the infrared remote control
- Overview of the Field Settings on the Indoor Units
- Overview of the Factory Settings on the Indoor Units
- Setting the Ceiling Height
- Setting the Filter Counter
- main/sub setting when using two remote controls
- setting the centralized group no
- The Field Setting Levels
- General Operation Data
- Table Of Contents
- removal of suction grille
- removal of air filter
- removal of decoration panel
- removal of horizontal blade
- removal of swing motor
- removal of switch box
- removal of pc board
- removal of humidity sensor and air temperature thermistor
- removal of fan motor
- removal of drain pan, drain pump, float switch
- removal of heat exchanger temperature thermistor
- 1.12 FFQ25, 50, 60B
- Table Of Contents
- removal of horizontal vane
- removal of fan rotor and fan motor
- removal of drain pan
- removal of drain pump
- installation of drain pump
- replacement of heat exchanger thermistor
- replacement of heat exchanger
- replacement of pc board
- replacement of receiver section of infrared remote control
- removal of air filter and suction grille
- removal of electrical parts and pc boards
- removal of fan bearing
- removal of bottom panel and drain pan
- removal of fan
- removal of air flow control blade
- removal of front grille
- removal of electrical box
- removal of heat exchanger
- removal of electrical parts box
- removal of swing louvre unit
- removal of fan rotor
- Table Of Contents
- Table Of Contents
- Table Of Contents
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Wiring Diagrams ESIEN05-041–80 Part 1 – System Outline311454.11 FHQ71, 100, 125BWiring diagram The illustration below shows the wiring diagram of the unit.Note 4ControlboxReceiver / Display unitIn case of simultaneous operation systemIndoor unit(Master)Indoor unit(Slave)to OutdoorUnitWired remote controlNote 6remote controlto Outdoor UnitNote 4Notes1.2.3. In case using central remote control, connect it to the unit in accordance with theattached installation manual.4. X24A is connected when the infrared remote control kit is being used.5. remote control model varies according to the combination system, confirmengineering materials and catalogs, etc. before connecting.6. In case installing the drain pump (M1P), remove the jumper connector of X15Aand execute the additional wiring for float switch and drain pump.7. Symbols show as follows:RED : RedBLK : BlackWHT : WhiteYLW : YellowPRP : PurpleGRY : GrayBLU : Blue: Terminal: Connector: Field wiringNote 6
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