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Mitsubishi Electric PK-2.5FLD User Manual

Mitsubishi Electric PK-2.5FLD
48 pages
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TECHNICAL & SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES·······················2
2. COMBINATION OF INDOOR
AND OUTDOOR UNITS········2
3. PART NAMES AND FUNCTIONS········2
4. SPECIFICATIONS·································5
5. DATA·····················································9
6. OUTLINES AND DIMENSIONS··········12
7. WIRING DIAGRAM·····························15
8.
REFRIGERANT SYSTEM DIAGRAM
······16
9. OPERATION FLOW-CHART··············17
10. MICROPROCESSOR CONTROL·······20
11. TROUBLESHOOTING ························29
12. DISASSEMBLY PROCEDURE···········33
13. PARTS LIST········································36
14. OPTIONAL PARTS·····························42
Indoor unit
[ Model names ] [ Service Ref. ]
2000, 2001 2000 2001
PK-2.5FLD
PK-2.5FLD PK-2.5FLD
1
PK-2.5FLD
2
PK-3FLD
PK-3FLD PK-3FLD
1
PK-3FLD
2
PK-4FLSD
PK-4FLD PK-4FLSD
1
PK-4FLSD
2
No. OC232
REVISED EDITION-A
2000
Indoor unit
Wall Mounted
Series PK
TEMP
ON / OFF
NOT AVAILABLE
AM
PM
AM
PM
˚C
REMOTE CONTROLLER
PK-P2.5FLD
1
, PK-P3FLD
1
,
PK-P4FLSD
1
, PK-P2.5FLD
2
,
PK-P3FLD
2
and PK-4FLSD
2
are added in REVISED
EDITION-A.
Please void OC232.
This manual does not cover
the following outdoor units.
When servicing them,
please refer to the service
manual No.OC127
REVISED EDITION-A,
OC187 and this manual in
a set.
[ Service Ref. ]
(OC127 REVISED
EDITION-A)
PU-2.5VJA
2
, PU-2.5NJA
1
,
PU-3NJA
1
, PU-4VLJSA
2
,
PU-4YJSA
3
, PU-4TJSA
2
(OC187)
PU-3VJC, PU-3YJC
SPLIT-TYPE, AIR CONDITIONERS
PK-2.5FLD2
PK-3FLD2
PK-4FLSD2
PK-2.5FLD, PK-2.5FLD1
PK-3FLD, PK-3FLD1
PK-4FLSD, PK-4FLSD1
OC232--1.qxp 01.10.1 9:17 PM Page 1
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Mitsubishi Electric PK-2.5FLD Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
Power Supply220-240 V, 50 Hz
RefrigerantR410A
Outdoor Unit Noise Level48 dB(A)
TypeSplit System

Summary

TECHNICAL CHANGES

COMBINATION OF INDOOR AND OUTDOOR UNITS

PART NAMES AND FUNCTIONS

Indoor Unit

Overview of the indoor unit's components and their roles.

SPECIFICATIONS

STANDARD SPECIFICATION

Detailed technical specifications for indoor and outdoor units.

DATA

PERFORMANCE DATA

Cooling capacity and performance data under various conditions.

OUTLINES AND DIMENSIONS

REMOTE CONTROLLER

Physical dimensions and layout of the remote controller.

INDOOR UNIT

Dimensional drawings and installation points for the indoor unit.

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

OPERATION FLOW-CHART

Main operation

General operational sequence from power on to mode selection.

COOL operation

Detailed flowchart for the cooling mode operation sequence.

DRY operation

Detailed flowchart for the dry mode operation sequence.

MICROPROCESSOR CONTROL

OUTLINE OF MICROPROCESSOR CONTROL

Overview of the system's control architecture and components.

INDOOR UNIT CONTROL

Detailed control logic for the indoor unit operations.

Emergency operation

Steps for initiating and managing emergency operational modes.

Function of jumper wire and dip switch on indoor controller board

Configuration options using jumper wires and dip switches.

TROUBLESHOOTING

Self-diagnostic function

Using the self-diagnostic feature to identify errors.

OTHER TROUBLES AND CAUSES

Common issues and their potential causes and solutions.

WRONG WIRING ON SITE

Identifying and resolving wiring errors between units.

DISASSEMBLY PROCEDURE

Removing the indoor controller board

Procedure for safely removing the main control board.

Removing the vane motor

Steps to detach and remove the auto vane motor.

Removing the lineflow fan and the fan motor

Guide to disassemble and remove the fan assembly.

PARTS LIST

STRUCTURAL PARTS

List of all structural components with part numbers and quantities.

ELECTRICAL PARTS

List of electrical components, including part numbers and quantities.

OPTIONAL PARTS

REFRIGERANT PIPES

Specifications and part numbers for optional refrigerant piping kits.

TIMER ADAPTER

Details on the timer adapter for system control.

CENTRALIZED REMOTE CONTROLLER

Names and Functions

Identification and purpose of controls and indicators.

Connection method

Wiring instructions for connecting the controller.

PROGRAM TIMER ADAPTER

Connection method

Wiring procedures for installing the program timer adapter.

TIMER

Program timer specifications

Technical details of the program timer unit.

Feature of program timer

Explanation of the program timer's daily and weekly functions.

How to connect program timer (PAC-SK65PT)

Step-by-step guide for connecting the program timer.

Drain pump

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