Mitsubishi Heavy Industries FDCA501HES 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 FDCA501HES Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDCA501HES
Category	Air Conditioner
Language	English

Summary

2 SELECTION DATA

2.1 Specifications (Indoor Units)

Details technical specifications for Ceiling recessed (FDT), Ceiling suspension (FDEN), Wall mounted (FDKN), and Duct type (FDUR) indoor units.

2.1 Specifications (Outdoor Units)

Details technical specifications for various outdoor unit models (FDCA series).

2.2 Range of usage & limitations

2.3 Exterior dimensions

(1) Indoor unit

2.6 Piping system

(1) Twin type

Details the refrigerant piping system for twin type outdoor units (FDCA301-601 and FDCA801-1001).

(ii) Triple type

Details the refrigerant piping system for triple type outdoor units (FDCA601 and FDCA801).

(iii) Double twin type

Details the refrigerant piping system for double twin type outdoor units (FDCA601, FDCA801, 1001).

2.7 Selection chart

(3) Correction of cooling and heating capacity in relation to one way length of refrigerant piping

2.9 Noise level

3 ELECTRICAL DATA

3.1 Electrical wiring

Shows the electrical wiring diagram and component list for indoor units (FDT series).

4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

(1) Remote controller

Explains the functions and displays of the wired remote controller.

(b) Wireless remote controller

Explains the functions and displays of the wireless remote controller.

(2) Operation control function by the indoor controller

(n) Heating overload porotection

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

5 APPLICATION DATA

SAFETY PRECAUTIONS

Provides critical safety warnings and precautions for installation and usage.

5.1 Installation of indoor unit

(1) Ceiling recessed type (FDT)

Details selection of installation location and installation space for FDT indoor units.

(1) Ceiling recessed type (FDT) (continued)

(2) Ceiling suspension type (FDEN)

Details selection of installation location for FDEN indoor units.

(2) Ceiling suspension type (FDEN) (continued)

(3) Wall mounted type (FDKN)

Details selection of installation location and cautions for wireless remote controller use for FDKN units.

(3) Wall mounted type (FDKN) (continued)

(4) Ceiling mounted duct type (FDUR)

Details selection of installation location and suspension methods for FDUR units.

(4) Ceiling mounted duct type (FDUR) (continued)

5.2 Installation of remote controller

(b) Installation procedure

Details the installation steps for both exposed and recessed fittings of the wired remote controller.

(b) Installation procedure (continued)

(f) Installation of unit

5.3 Installation of outdoor unit

(1) Installation

Lists accessories and provides guidance on selecting the installation location for outdoor units.

(1) Installation (continued)

Details special instructions for R410A systems and minimum installation spaces for outdoor units.

(1) Installation (continued)

(a) Selection of installation location

(2) Refrigerant piping work

(a) Decision of piping specification

Details piping specifications for twin type outdoor units (FDCA301-601 and FDCA801, 1001).

(ii) Triple type

Details piping specifications for triple type outdoor units (FDCA601 and FDCA801).

(iii) Double twin type

Details piping specifications for double twin type outdoor units (FDCA601, FDCA801, 1001).

(b) Flare processing

(3) Air tightness test and air purge

Details the procedure for air tightness testing and air purging of the refrigerant system.

(4) Refrigerant charge

Explains how to calculate and perform refrigerant charging for the system.

(5) Heating and condensation prevention

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

(7) Electrical wiring

Guides on selecting wire sizes, circuit protection, and wiring connections for the system.

(b) Wiring connection.

Shows wiring diagrams for 1-phase and 3-phase models and explains master/slave unit address settings.

(d) Remote controller wiring and connection procedure

(8) Setting functions using the remote controller

(b) Function setting method

Provides a step-by-step guide on how to change function settings using the remote controller.

6 MAINTENANCE DATA

6.1 Servicing

Details procedures for evacuation and refrigerant charging.

6.2 Trouble shooting for refrigerant circuit

(1) Judgement of operating condition by operation pressure and temperature difference

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

6.3 Diagnosing of microcomputer circuit

(1) Selfdiagnosis function

Explains how to interpret error codes and LED indicators for diagnosing faults.

(b) Display sequence of error, inspection display lamp

(c) Check method when the error code is display

Provides troubleshooting flowcharts for common error codes like E1, E5, E32, E34.

1 Error display : E5 [Communications error during operation]

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] (Only case of FDCA801, 1001 type)

12 Error display : E52 [52C Abnormal]

13 [Defective suction pipe thermistor] (Only case of FDCA801, 1001 type)

14 [Defective low pressure and high pressure sensor] (Only case of FDCA801, 1001 type)

15 Error display : E55 [Defective under-doom thermistor] (Only case of FDCA801, 1001 type)

16 Error display : E57 [Insufficient refrigerant volume.]

(5) Check abnormal operation data with the remote controller