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Mitsubishi SUZ-KA35VA User Manual

Mitsubishi SUZ-KA35VA
130 pages
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TECHNICAL & SERVICE MANUAL
No.OC322
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
R410A
SUZ-KA25VA.TH SUZ-KA25VAR1.TH
SUZ-KA35VA.TH SUZ-KA35VAR1.TH
SUZ-KA25VAH.TH SUZ-KA25VAHR1.TH
SUZ-KA35VAH.TH SUZ-KA35VAHR1.TH
SUZ-KA50VA.TH
SUZ-KA50VA
1.TH
SUZ-KA50VAR2.TH
SUZ-KA60VA.TH
SUZ-KA60VA
1.TH
SUZ-KA60VAR2.TH
SUZ-KA71VA.TH
SUZ-KA71VA
1.TH
CONTENTS
1.
COMBINATION OF INDOOR AND OUTDOOR UNITS
....
2
2. TECHNICAL CHANGES
....................................
3
3. PART NAMES AND FUNCTIONS
......................
7
4. SPECIFICATION
.................................................
8
5. NOISE CRITERIA CURVES
..............................
12
6. OUTLINES AND DIMENSIONS
........................
13
7. WIRING DIAGRAM
...........................................
15
8. REFRIGERANT SYSTEM DIAGRAM
..............
23
9. PERFORMANCE CURVES
..............................
29
10. ACTUATOR CONTROL
....................................
57
11. SERVICE FUNCTIONS
.....................................
58
12. TROUBLESHOOTING
......................................
58
13. DISASSEMBLY INSTRUCTIONS
...................
103
14. PARTS LIST
....................................................
113
15. RoHS PARTS LIST
.........................................
119
Indication of
model name
Note:
This service manual describes technical data of the outdoor units.
RoHS compliant products have <G> mark on the spec name plate. For servicing of RoHS compliant products, refer to the RoHS Parts List.
HFC
utilized
R410A
SUZ-KA25VA(H).TH SUZ-KA25VA(H)R1.TH
SUZ-KA35VA(H).TH SUZ-KA35VA(H)R1.TH
August 2011
REVISED EDITION-G
Revision:
• Errors in "11. SERVICE FUNCTIONS" and "12. TROUBLESHOOTING" have been corrected
in REVISEDEDITION-G.
• Please void OC322 REVISED EDITION-F.
SUZ-KA25VA
SUZ-KA35VA
SUZ-KA25VAH
SUZ-KA35VAH
SUZ-KA50VA
SUZ-KA60VA
SUZ-KA71VA
Outdoor unit
[Model names]
[Service Ref.]
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Mitsubishi SUZ-KA35VA Specifications

General IconGeneral
BrandMitsubishi
ModelSUZ-KA35VA
CategoryAir Conditioner
LanguageEnglish

Summary

Combination of Indoor and Outdoor Units

Technical Changes

Specifications

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Performance Curves

How to Measure Indoor Air Temperature Difference

Guides on attaching thermometers to measure indoor air wet-bulb/dry-bulb temperature difference.

Outdoor Low Pressure and Unit Current

Performance Data Tables

Cooling Operation Performance Data

Detailed cooling performance data tables for various models and conditions.

Heating Operation Performance Data

Detailed heating performance data tables for various models and conditions.

Actuator Control

Outdoor Fan Motor Control

Explains when the outdoor fan motor turns ON/OFF relative to the compressor.

R.V. Coil Control

Details the control states (ON/OFF) for Heating, Cooling, and Dry modes.

Sensor to Actuator Relation

Shows which sensors control which actuators for different models.

Troubleshooting

Cautions on Troubleshooting

Provides important safety and preparatory steps before troubleshooting.

Failure Mode Recall and Tables

Explains failure recall, lists error codes, symptoms, and outdoor unit failure modes.

Troubleshooting Check Table

Lists abnormal points, LED indications, conditions, and correspondences for troubleshooting.

Trouble Criteria for Main Parts

Details resistance and pressure checks for key components like thermistors, compressor, etc.

Troubleshooting Flowcharts

Provides diagnostic flowcharts for specific components and issues like inverter, compressor, LEV.

Test Point Diagrams

Shows layouts of various P.C. boards with test points, connectors, and component diagrams.

Disassembly Instructions

Removing the Cabinet

Step-by-step guide to remove the outdoor unit cabinet panels.

Removing Major Assemblies

Instructions for removing inverter/power boards, R.V. coil, and thermistors.

Removing Fan, Compressor, and Valves

Procedures for removing the fan motor, compressor, 4-way valve, and reactor.

Parts List (Non-RoHS Compliant)

Outdoor Unit Structural Parts

Exploded views and part numbers for structural components.

Outdoor Unit Electrical Parts

List of electrical components with part numbers and quantities.

RoHS Parts List

Outdoor Unit Electrical Parts (RoHS Compliant)

List of RoHS compliant electrical components with part numbers.

Outdoor Unit Structural Parts

Exploded views and part numbers for structural components.

Accessories

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