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Mitsubishi Electric MUH-18RV Manuals
Manuals and User Guides for Mitsubishi Electric MUH-18RV. We have
1
Mitsubishi Electric MUH-18RV manual available for free PDF download: Service Manual
Mitsubishi Electric MUH-18RV Service Manual (89 pages)
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 2.95 MB
Table of Contents
Table of Contents
1
Service Manual
1
Part Names and Functions
2
Technical Changes
2
Accessories
3
Outdoor Unit
3
Remote Controller
4
Specification
6
Noise Criteria Curves
8
Outlines and Dimensions
10
Wiring Diagram
13
Refrigerant System Diagram
17
Air Flow
20
How to Measure the Indoor Air Wet-Bulb/Dry-Bulb Temperature Difference
20
Main Readings
20
Performance Curves
20
Outdoor Low Pressure and Outdoor Unit Current
21
HEAT Operation
22
I Feel Control Operation
36
Indoor Unit Display Section
36
Microprocessor Control
36
Operation Indicator Lamp
36
Wireless Remote Controller
36
TEMPERATURE Buttons
37
Coil Frost Prevention
38
COOL Mode of "I FEEL CONTROL"
38
DRY Mode of “I FEEL CONTROL”
38
Outdoor Fan Speed Control
38
HEAT Mode of “I FEEL CONTROL”
39
Discharge Temperature Protection
40
High Pressure Protection
40
Defrost Thermistor RT61
41
Defrosting
41
Cool Operation
42
Dry Operation
42
R.V. Coil Control
42
Auto Vane Operation
43
Indoor Fan Motor Control
43
How to Set the Timer
46
Program Timer
46
Timer Operation
46
Emergency-Test Operation
47
LEV Control
48
LEV Opening Correction by Discharge Temperature
48
LEV Time Chart
49
Change in Defrost Setting
50
Compulsory Defrosting Mode for Service
50
Service Functions
50
Timer Short Mode
50
Auto Restart Function
51
Cautions on Troubleshooting
52
Troubleshooting
52
Instruction of Troubleshooting
53
Normal Operation
55
Troubleshooting Check Table
55
Trouble Criterion of Main Parts
57
Check of Indoor Fan Motor
59
Check of Remote Controller and Receiver P.C. Board
59
Check of Indoor Electronic Control P.C. Board
60
Check of Outdoor Unit
60
Check of R.V. Coil
63
How to Check Mis-Wiring and Serial Signal Error
64
How to Check Mis-Wiring
65
Check of LEV (Expansion Valve)
66
Check of Outdoor Thermistor
66
Test Point Diagram and Voltage
67
Outdoor Deicer P.C. Board
69
Disassembly Instructions
71
Msh-30Rv
73
Muh-18Rv
75
Indoor Unit Heat Exchanger
79
Indoor Unit Structural Parts
79
Parts List
79
Accessory and Remote Controller Part
80
Indoor Unit Functional Parts and Electrical Parts
80
Outdoor Unit Structural Parts, Electrical Parts and Functional Parts
82
Electrical Parts
85
Accessory Parts
88
Air Cleaning Filter
88
Deodorizing Filter
88
Optional Parts
88
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