Mitsubishi Electric PMFY Series Technical service manual [PDF] (41 pages)
- Brand: Mitsubishi Electric
- Model: PMFY Series
- Format: PDF
- Updated: 12.05.2026
-
TECHNICAL & SERVICE MANUAL
1
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1. FAN MOTOR (MF) has been changed.
2
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Cautions for units utilizing refrigerant R410A
3
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[1] Cautions for service
4
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PART NAMES AND FUNCTIONS
5
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Press to turn ON/OFF the indoor unit.
6
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Setting and display items
9
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TIME SUN MON TUE WED THU FRI SAT
11
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Note 1. Rating conditions (JIS B 8615-1)
12
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4-2. ELECTRIC PARTS SPECIFICATIONS
13
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4-3. AIR CAPACITY TAKEN FROM OUTSIDE
14
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4-4. NOISE CRITERION CURVES
15
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OUTLINES AND DIMENSIONS
16
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TO OUTDOOR UNIT
18
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REFRIGERANT SYSTEM DIAGRAM
21
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8-1. HOW TO CHECK THE PARTS
22
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< Thermistor for lower temperature >
23
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24
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8-3. FUNCTION OF DIP SWITCH
26
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8-4. TEST POINT DIAGRAM
28
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Indoor controller board
29
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8-4-2. Address board
31
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Be careful when removing heavy parts.
32
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Removing the grille
33
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PHOTOS & ILLUSTRATIONS
34
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RoHS PARTS LIST
36
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VBM-E#2 VBM-ER3 VBM-ER4
39
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Model Number: PMFY-P20VBM-E1
41
Document Preview & Text Transcription
TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Indoor unit
[Model names] [Service Ref.]
No. OC307
REVISED EDITION-E
INDOOR UNIT
CONTENTS
1. TECHNICAL CHANGES.....................2
2. SAFETY PRECAUTION .....................3
3. PART NAMES AND FUNCTIONS ......5
4. SPECIFICATIONS ............................12
5. OUTLINES AND DIMENSIONS .......16
6. WIRING DIAGRAM ...........................17
7. REFRIGERANT SYSTEM DIAGRAM .... 21
8. TROUBLE SHOOTING .....................22
9. DISASSEMBLY PROCEDURE .........32
10. RoHS PARTS LIST ...........................36
Series PMFY Ceiling Cassettes
R410A
December 2012
Note:
• This manual describes
only service data of the
indoor units.
• RoHS compliant products
have mark on the
spec name plate.
• For servicing RoHS com-
pliant products, refer to
the RoHS Parts List.
Revision:
• PMFY-P20/25/32/40VBM-ER4
have been added in
REVISED EDITION-E.
• Some descriptions have
been modified.
• Please void OC307
REVISED EDITION-D.
PMFY-P20VBM-E
PMFY-P25VBM-E
PMFY-P32VBM-E
PMFY-P40VBM-E
PMFY-P20VBM-E
PMFY-P20VBM-E#2
PMFY-P20VBM-ER4
PMFY-P25VBM-E
PMFY-P25VBM-E#2
PMFY-P25VBM-ER4
PMFY-P32VBM-E
PMFY-P32VBM-E#2
PMFY-P32VBM-ER4
PMFY-P40VBM-E
PMFY-P40VBM-E#2
PMFY-P40VBM-ER4
PMFY-P20VBM-E1
PMFY-P20VBM-ER3
PMFY-P25VBM-E1
PMFY-P25VBM-ER3
PMFY-P32VBM-E1
PMFY-P32VBM-ER3
PMFY-P40VBM-E1
PMFY-P40VBM-ER3
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