Mitsubishi Heavy Industries FDCA601HES User Manual

MULTI-TYPE
PACKAGED AIR-CONDITIONER
(Split system, Air to air heat pump type)
Collection data
Manual No. '04•M-T-089
(OUTDOOR UNIT) (INDOOR UNIT)
FDCA301HEN
301HES
401HEN
401HES
501HES
601HES
801HES
1001HES
FDTA151
201
251
301
401
501
FDENA151
201
251
301
401
501
FDKNA151
201
251
301
FDURA201
251
301
401
501

Mitsubishi Heavy Industries FDCA601HES Specifications

General

Cooling Capacity	6.0 kW
Power Supply	220-240V, 50Hz
Refrigerant	R410A
Weight (Outdoor Unit)	45 kg
Type	Split System

Summary

1 GENERAL INFORMATION

1.1 Specific features

Details the key characteristics and benefits of the Multi-Type V series air conditioning system.

1.2 How to read the model name

1.3 Table of models

1.4 Table of system combinations

2 SELECTION DATA

2.1 Specifications

Provides detailed technical specifications for ceiling-recessed (FDT) indoor units FDTA151, 201, 251.

(b) Ceiling suspension type (FDEN)

Details technical specifications for FDEN indoor units FDENA151, 201, 251.

(c) Wall mounted type (FDKN)

Provides technical specifications for FDKN indoor units FDKNA151, 251.

(d) Ceiling mounted duct type (FDUR)

Details technical specifications for FDUR indoor units FDURA201, 251.

(2) Outdoor unit

Details technical specifications for FDCA301HEN and FDCA301HES outdoor units.

2.2 Range of usage & limitations

4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

(1) Remote controller (a) Wired remote controller

Explains the functions and operation of the wired remote controller's display and buttons.

(b) Wireless remote controller (Optional parts)

Details the features and operation of the wireless remote controller, including its display and buttons.

(2) Operation control function by the indoor controller

(d) Dehumidifying operation (“THERMAL DRY”)

(f) Hot start (Cold draft prevention during heating)

(g) FM control with the heating thermostat turned off (For cold draft prevention)

(h) Room temperature sensing temperature compensation during heating

(m) Compressor inching prevention control

(n) Heating overload porotection

(o) Frost prevention during cooling, dehumidification

(p) Thermistor (Return air, heat exchanger) disconnected wire detection.

5.3 Installation of outdoor unit

(3) Outdoor unit Models FDCA301HEN, 301HES

Shows installation requirements, space, and external views for FDCA301HEN/HES outdoor units.

2.6 Piping system

(1) Twin type Models FDCA301HEN, 301HES, 401HEN, 401HES, 501HES, 601HES

Illustrates the refrigerant piping system for twin type outdoor units (FDCA301-601).

(2) Triple type

Illustrates the refrigerant piping system for triple type outdoor units (FDCA601).

(3) Double twin type

Depicts the refrigerant piping system for FDCA601HES double twin type outdoor units.

Models FDCA801HES,1001HES

3 ELECTRICAL DATA

3.1 Electrical wiring

Presents wiring diagrams for various indoor and outdoor unit models.

(a) Wired remote controller

(b) Ceiling suspension type (FDEN) Models All models

(c) Wall mounted type (FDKN) Models FDKNA151, 201, 251

(d) Ceiling mounted duct type (FDUR) Models All models

(2) Outdoor unit

5 APPLICATION DATA

SAFETY PRECAUTIONS

Provides critical safety warnings and precautions for installation and operation.

5.1 Installation of indoor unit

Provides guidance on selecting installation locations and required space for indoor units.

(c) Suspension

(d) Drain Piping

9) Drainage test

(2) Ceiling suspension type (FDEN)

(d) Installation

Provides instructions for mounting the indoor unit, including attaching suspension lugs.

(e) Refrigerant Piping

Details refrigerant pipe positioning and connection procedures, including flare processing.

(f) Drain Piping

Outlines the connection options for drain piping and material recommendations.

(3) Wall mounted type (FDKN)

(c) Attaching of mounting plate

(4) Ceiling mounted duct type (FDUR)

(2) Refrigerant piping work

Details piping specifications and branch pipe sets for various FDCA models (Twin, Triple, Double Twin).

(b) Flare processing

(3) Air tightness test and air purge

Outlines the procedure for conducting an air tightness test and air purge using nitrogen gas.

(4) Refrigerant charge

Explains factory refrigerant charge and how to calculate additional charging for longer piping lengths.

(5) Heating and condensation prevention

(6) Drain piping work (Models FDCA301~601 only)

(7) Electrical wiring

Provides guidance on selecting appropriate wire sizes and circuit protection based on model and phase.

(b) Wiring connection.

(b) Function setting method

(d) Changing the remote controller’s temperature setting range

(9) Test run

Explains how to perform test operations directly from the outdoor unit or via remote controller.

1 Error display : e5 [Communications error during operation]

2 Error display : e32 [Power supply phases reversed]

3 Error display : e33 [Compressor overcurrent trouble]

4 Error display : e34 [Open phase at L3 phase of 52C secondary side]

5 Error display : e35 [Cooling overload operation]

6 Error display : e36 [Discharge temperature error]

7 Error display : E37 [Defective outdoor unit heat exchanger thermistor]

8 Error display : E38 [Defective outdoor air temperature thermistor]

9 Error display : E39 [Defective discharge pipe thermistor]

10 Error display : E40 [63H1 operation]

11 Error display : E49 [Abnormal low pressure or low pressure sensor wire disconnected]

Explains error E49 for abnormal low pressure or sensor wire issues in FDCA801/1001 models.

12 Error display : E52 [52C Abnormal]

Covers error E52 related to the 52C (magnetic contactor) abnormality and its diagnosis.

13 Error display : E53 [Defective suction pipe thermistor]

Details error E53 for a defective suction pipe thermistor in FDCA801/1001 models and its troubleshooting.

14 Error display : E54 [Defective low pressure and high pressure sensor]

Explains error E54 for defective low/high pressure sensors in FDCA801/1001 models and its diagnosis.

15 Error display : E55 [Defective under-doom thermistor]

Covers error E55 for a defective under-doom thermistor in FDCA801/1001 models and its troubleshooting.

16 Error display : E57 [Insufficient refrigerant volume.]

Details error E57 related to insufficient refrigerant volume and its protection control.

(d) How to advance checks for each faulty symptom

Provides troubleshooting steps for symptoms that do not trigger an error code.

(i) Inspection method when there is no error display

1) Louver motor does not operate

3) Four way valve does not switch during heating operation

10 Error display : E10 [Control of 1 remote controller VS multiple units Excessive number of units (more than 17 units) ]

9 Error display : E16 [Fan motor abnormalities]

10 Error display : E28 [Directive remote controller thermistor.]

Explains error E28 related to the remote controller thermistor and provides resistance-temperature characteristics.

(4) Error diagnosis procedures at the outdoor units side

Provides procedures for diagnosing errors on the outdoor unit, including part replacement.

● Overcurrent Setting

6 MAINTENANCE DATA

6.1 Servicing

Covers essential servicing procedures including evacuation and refrigerant charging.

(1) Evacuation

Explains the evacuation procedure to purge impurities using a vacuum pump.

(2) Refrigerant charging

Details the procedure for charging refrigerant after evacuation, including purging air.

6.2 Trouble shooting for refrigerant circuit

Provides guidance on diagnosing refrigerant circuit issues based on pressure and temperature differences.

6.3 Diagnosing of microcomputer circuit

Explains how to diagnose microcomputer circuit errors using LED indicators and flowcharts.

(a) Check Indicator Table

(b) Display sequence of error, inspection display lamp

(c) Check method when the error code is display

Provides flowcharts for diagnosing errors based on remote controller and PCB LED indicators.

7 WIRELESS KIT (OPTION FOR FDT MODEL ONLY)

(1) Wireless kit model

(5) Attachment of wireless kit