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Mitsubishi Electric SUZ-KA25VA5 User Manual

Mitsubishi Electric SUZ-KA25VA5
44 pages
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TECHNICAL & SERVICE MANUAL
R410A
CONTENTS
1.
COMBINATION OF INDOOR AND OUTDOOR UNITS
.....
2
2. PARTS NAMES AND FUNCTIONS
..................
3
3. SPECIFICATION
................................................
4
4. NOISE CRITERIA CURVES
..............................
6
5. OUTLINES AND DIMENSIONS
........................
7
6. WIRING DIAGRAM
............................................
9
7. REFRIGERANT SYSTEM DIAGRAM
.............
12
8. ACTUATOR CONTROL
...................................
16
9. SERVICE FUNCTIONS
...................................
17
10. TROUBLESHOOTING
.....................................
17
11. DISASSEMBLY PROCEDURE
........................
34
Indication of
model name
Note:
This service manual describes
service data of the outdoor
units only.
HFC
utilized
R410A
SUZ-KA25VA5.TH
SUZ-KA35VA5.TH
PARTS CATALOG (OCB603)
No. OCH603
October 2015
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
[Model Name]
SUZ-KA25VA5
SUZ-KA35VA5
SUZ-KA50VA5
SUZ-KA60VA5
SUZ-KA71VA5
[Service Ref.]
SUZ-KA25VA5.TH
SUZ-KA25VA5.TH-ET
SUZ-KA35VA5.TH
SUZ-KA35VA5.TH-ET
SUZ-KA50VA5.TH
SUZ-KA50VA5.TH-ET
SUZ-KA60VA5.TH
SUZ-KA60VA5.TH-ET
SUZ-KA71VA5.TH
SUZ-KA71VA5.TH-ET
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Mitsubishi Electric SUZ-KA25VA5 Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR32
Power Supply220-240 V, 50 Hz
Indoor Unit Noise Level21 dB

Summary

Combination of Indoor and Outdoor Units

Parts Names and Functions

Specification

Main Electric Parts Specifications

Details specifications and ratings for key electrical components used in the outdoor units.

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Refrigerant Piping Length Specifications

Refrigerant Piping Height Difference

Additional Refrigerant Charge

Refrigerant Pumping Down Procedure

Actuator Control

Outdoor Fan Motor Operation

Explains the ON/OFF timing of the outdoor fan motor in relation to the compressor operation.

Reversing Valve Coil Control

Describes the control logic for the reversing valve (R.V.) coil during cooling and heating modes.

Sensor and Actuator Relationship

Maps various sensors to their purpose and the actuators they control in the system.

Service Functions

Change in Defrost Setting

Provides instructions on how to adjust the defrost finish temperature by modifying a jumper wire.

Troubleshooting

Troubleshooting Safety Cautions

Outlines essential safety precautions and checks to perform before starting troubleshooting procedures.

Troubleshooting Error Code Table

Lists common error codes, symptoms, abnormal points, and recommended remedies for unit malfunctions.

Self-Diagnosis Methods

Details how to perform self-diagnosis using wired and wireless remote controllers for various models.

Troubleshooting Flows and Component Checks

Provides systematic troubleshooting flows and criteria for checking main parts like compressor, thermistors, and coils.

Outdoor Refrigerant Circuit Check

Disassembly Procedure

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