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SUZ-KA18NA2
Mitsubishi SUZ-KA18NA2 User Manual
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HEAD OFFICE : TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU,
TOKYO 100-8310, JAP
AN
C
Copyright 2018 MITSUBISHI ELECTRIC CORPORA
TION
Issued: May 2019 No. OCH688 REVISED EDITION-A
Published : Nov
. 2018 No.OCH688
Made in Japan
Specifications are subject to change without notice.
37
Table of Contents
Table of Contents
1
Combination of Indoor and Outdoor Units
2
Outdoor Unit
2
Part Names and Functions
2
Operating Range
3
Specification
3
Outlines and Dimensions
4
Wiring Diagram
5
Suz-Ka18Nah2.Th
6
Suz-Ka24Na2.Th
7
Suz-Ka30Na2.Th
7
Suz-Ka36Na2.Th
7
Suz-Ka24Nah2.Th
8
Suz-Ka30Nah2.Th
8
Suz-Ka36Nah2.Th
8
Refrigerant System Diagram
9
Suz-Ka18Na(H)2.Th
9
Additional Refrigerant Charge
10
Max. Height Difference
10
Max. Refrigerant Piping Length
10
Data
11
Standard Operation Data
11
Actuator Control
14
Outdoor Fan Motor Control
14
R.V. Coil Control
14
Relation between Main Sensor and Actuator
14
Change in Defrost Setting
15
Pre-Heat Control Setting
15
Service Functions
15
Troubleshooting
15
Trouble Shooting Check Table
16
How to Proceed "Self-Diagnosis"
17
Resetting the Error History
17
Remote Controller Check
18
Malfunction-Diagnosis Method at Maintenance Service
19
Self-Diagnosis
19
Trouble Criterion of Main Parts
21
Check of Compressor
22
Check of Open Phase
22
How to Check Inverter/Compressor
22
Troubleshooting Flow
22
Check of Compressor Operation Time
23
Check of Compressor Start Failure
23
Check of Compressor Winding
23
Check of Outdoor Thermistors
24
Check of R.V. Coil
24
Unit Operates in COOL Mode Even if It Is Set to HEAT Mode
24
Unit Operates in HEAT Mode Even if It Is Set to COOL Mode
24
Check of Outdoor Fan Motor
25
Check of Power Supply
25
Check of Inverter P.C. Board
26
Check of LEV
26
How to Check Miswiring and Serial Signal Error
27
Check of Outdoor Refrigerant Circuit
28
Check the Defrost Heater (Base Pan Heater)
28
Electromagnetic Noise Enters into TV Sets or Radios
29
Back Side of Unit
30
Front Side of Unit
30
Inverter P.C. Board
30
Test Point Diagram and Voltage
30
Suz-Ka24Na(H)2.Th
31
Suz-Ka30Na(H)2.Th
31
Suz-Ka36Na(H)2.Th
31
Function Selections
32
Function Setting
32
Functions Are Available When Setting the Unit Number to 01
32
Unit Function Setting by the Remote Controller
32
Maintenance Password Is Required
33
Selecting Functions Using the Wired Remote Controller
33
Detaching Points
35
Disassembly Instructions
35
Removing the Cabinet
35
Terminal with Locking Mechanism
35
Removing R.V. Coil
36
Removing the Inverter Assembly, Inverter P.C. Board
36
Removing Outdoor Fan Motor
37
Removing the Compressor and 4-Way Valve
37
Removing the Discharge Temperature Thermistor
37
4
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Mitsubishi SUZ-KA18NA2 Specifications
General
Brand
Mitsubishi
Model
SUZ-KA18NA2
Category
Air Conditioner
Language
English
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