MITSUBISHI ELECTRIC PUZ-A18NKA7 Heat Pump Cooling Only Outdoor Unit Ductless User Manual
- June 13, 2024
- Mitsubishi Electric
Table of Contents
MITSUBISHI ELECTRIC PUZ-A18NKA7 Heat Pump Cooling Only Outdoor Unit
Ductless
Product Information
This product is a split-type, heat pump air conditioner. It is available in various models:
- Outdoor Unit Models: PUZ-A12NKA7, PUZ-A18NKA7, PUZ-A24NHA7, PUZ-A30NHA7, PUZ-A36NKA7, PUZ-A42NKA7, PUZ-A12NKA7-BS, PUZ-A18NKA7-BS, PUZ-A24NHA7-BS, PUZ-A30NHA7-BS, PUZ-A36NKA7-BS, PUZ-A42NKA7-BS
- Indoor Unit Models: PUY-A12NKA7, PUY-A18NKA7, PUY-A24NHA7, PUY-A30NHA7, PUY-A36NKA7, PUY-A42NKA7, PUY-A12NKA7-BS, PUY-A18NKA7-BS, PUY-A24NHA7-BS, PUY-A30NHA7-BS, PUY-A36NKA7-BS, PUY-A42NKA7-BS
The product uses R410A refrigerant and was revised in November 2021.
Product Usage Instructions
- Refer to pages 5 and 7 in the user manual for detailed instructions.
- Refer to the service manual (OCH636) for additional information.
- The product consists of various functional parts. The required quantity of each part per unit is indicated below:
| Part No. | Part Name | Wiring Diagram Symbol | Remarks |
|---|---|---|---|
| T 7 W A 0 7 2 2 1 | FAN MOTOR | MF1 | |
| R 0 1 E 1 1 1 1 5 | PROPELLER FAN | ||
| R 0 1 E 0 3 0 9 7 | NUT |
Note : The table above lists only a few parts. Refer to the user manual for the complete list of parts and their details.
Revision:
A note has been added on page 5 and 7 in REVISED EDITION-B.
OCB636A is void.
PARTS CATALOG
Outdoor unit
SERVICE PARTS LIST
FUNCTIONAL PARTS
- PUZ-A12NKA7 PUZ-A12NKA7-BS
- PUZ-A18NKA7 PUZ-A18NKA7-BS
- PUY-A12NKA7 PUY-A12NKA7-BS
- PUY-A18NKA7 PUY-A18NKA7-BS
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure.
No.
|
Parts No.
|
Parts Name
| PUZ-A12NKA7| PUZ-A18NKA7| PUY- A12NKA7| PUY- A18NKA7| PUZ-A12NKA7-BS| PUZ-A18NKA7-BS| PUY-A12NKA7- BS| PUY-A18NKA7- BS|
Wiring Diagram Symbol
|
Remarks
---|---|---|---|---|---|---|---|---|---|---|---|---
1| T7W A07 221| FAN MOTOR| 1| 1| 1|
1| 1| 1| 1| 1| MF1|
2| R 0 1 E1 1 1 1 5| PROPELLER FAN| 1| 1| 1|
1| 1| 1| 1| 1| |
3| R 01 E03 0 97| NUT| 1| 1| 1| 1| 1|
1| 1| 1| |
4| T 97 427 607| COMPRESSOR| 1| | 1| | 1|
| 1| | MC (SNB092FNCM)| Includes RUBBER MOUNTS
4| T 97 428 607| COMPRESSOR| | 1| | 1| |
1| | 1| MC (SNB130FNCM2)| Includes RUBBER MOUNTS
5| R01 M09 202| THERMISTOR DS| 1| 1| 1|
1| 1| 1| 1| 1| TH4 (Discharge)
TH33 (Comp. surface)
|
6| T7W E08 410| STOP VALVE ASSY| 1|
1| 1| 1| 1| 1| 1| 1| | 1/4F, 1/2F
Includes STOP VALVES
7| R 01 E69 4 40| POWER RECEIVER| 1| 1| 1|
1| 1| 1| 1| 1| |
8| R01 H14 202| THERMISTOR| 1| 1| 1|
1| 1| 1| 1| 1| TH32 (Suction)|
9| R01 H90 401| LEV-B ASSY| 1| 1| 1|
1| 1| 1| 1| 1| | Includes LEV-B COIL
10| R01 H38 242| LEV COIL| 1| 1| 1|
1| 1| 1| 1| 1| LEV-B (RED)| CAM type
11| R01 N25 202| THERMISTOR| 1| 1| 1|
1| 1| 1| 1| 1| TH3 (Liquid)|
12| R01 H89 401| LEV-A ASSY| 1| 1|
1| 1| 1| 1| 1| 1| | Includes LEV-A COIL
13| R01 H37 242| LEV COIL| 1| 1| 1|
1| 1| 1| 1| 1| LEV-A (WHITE)| CAM type
14| R 01 E12 4 13| CHARGE PLUG| 1| 1| 1| 1|
1| 1| 1| 1| |
15| R01 H83 202| THERMISTOR| 1| 1| 1|
1| 1| 1| 1| 1| TH6 (2-phase pipe)
TH7 (Ambient)
|
16| T7W E08 403| 4-WAY VALVE| 1| 1| |
| 1| 1| | | |
17| T7W E97 242| SOLENOID COIL (4-WAY
VALVE)| 1| 1| | | 1| 1| | | 21S4|
18| T7W E15 208| HIGH PRESSURE SWITCH| 1| 1|
1| 1| 1| 1| 1| 1| 63H| UL4.14MPA
19| R01 H55 408| HEAT EXCHANGER| 1| |
1| | 1| | 1| | |
19| R01 H50 408| HEAT EXCHANGER| | 1| |
1| | 1| | 1| |
20| T7W E28 259| REACTOR| 1| 1| 1|
1| 1| 1| 1| 1| ACL|
21| T7W H90 315| CONTROLLER CIRCUIT BOARD| 1|
1| 1| 1| 1| 1| 1| 1| C.B.|
22| T7W E70 716| TERMINAL BLOCK| 1| 1|
1| 1| 1| 1| 1| 1| TB1| 6P (L1,L2,GR,S1,S2,S3)
23| R 01 E00 3 16| SWITCH BOARD| 1| 1| 1|
1| 1| 1| 1| 1| S.B.|
24| R 01 E00 3 27| P.B.SUPPORT| 1| 1| 1| 1|
1| 1| 1| 1| |
25| R 01 E00 3 25| P.B.COVER| 1| 1| 1| 1|
1| 1| 1| 1| |
26| R 01 E01 3 27| H.S.SUPPORT| 1| 1| 1| 1|
1| 1| 1| 1| |
27| R01 M17 202| THERMISTOR (HS)| 1| 1|
1| 1| 1| 1| 1| 1| TH8 (Heat sink)|
28| R01 A53 602| COMP FELT (TOP)| 1| 1|
1| 1| 1| 1| 1| 1| |
29| R01 A52 602| COMP FELT (BODY)| 1| 1|
1| 1| 1| 1| 1| 1| |
30| R 01 E21 2 39| FUSE 10A 250V| 2| 2| 2|
2| 2| 2| 2| 2| F1, F2| 10A 250V
31| R 01 E17 2 39| FUSE 250V 3.15A| 2| 2| 2|
2| 2| 2| 2| 2| F3, F4| 250V 3.15A
32| T7W A12 510| LEAD ASSY COMP| 1| | 1|
| 1| | 1| | |
32| T7W A13 510| LEAD ASSY COMP| | 1| |
1| | 1| | 1| | +
- PUZ-A24NHA7 PUZ-A24NHA7-BS
- PUZ-A30NHA7 PUZ-A30NHA7-BS
- PUY-A24NHA7 PUY-A24NHA7-BS
- PUY-A30NHA7 PUY-A30NHA7-BS
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure.
PUY-A24 only
If PIPE COVER KIT (PAC-SK58DK-E) is attached to the piping inside the outdoor
unit, and it is removed for servicing, please order and install the same PIPE
COVER KIT.
FUNCTIONAL PARTS
- PUZ-A36NKA7 PUZ-A36NKA7-BS
- PUZ-A42NKA7 PUZ-A42NKA7-BS
- PUY-A36NKA7 PUY-A36NKA7-BS
- PUY-A42NKA7 PUY-A42NKA7-BS
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure
- PUY-A42 only
If PIPE COVER KIT (PAC-SK59DK-E) is attached to the piping inside the outdoor unit, and it is removed for servicing, please order and install the same PIPE COVER KIT.
STRUCTURAL PARTS
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure.
No.
|
Parts No.
|
Parts Name
| PUZ-A12NKA7| PUZ-A18NKA7| PUY- A12NKA7| PUY- A18NKA7| PUZ-A12NKA7-BS| PUZ-A18NKA7-BS| PUY-A12NKA7- BS| PUY-A18NKA7- BS|
Remarks
---|---|---|---|---|---|---|---|---|---|---|---
1| R01 **E00 ****631| ICE GUARD| 1| 1|
1| 1| 1| 1| 1| 1|
2| R01 ****E61 ****691| GRILLE| 1| 1| 1|
1| 1| 1| 1| 1|
3| R01 ****E21 ****668| FRONT PANEL| 1| 1|
1| 1| 1| 1| 1| 1|
4| T7W A00 005| BRAND LABEL| 1| 1| 1|
1| 1| 1| 1| 1|
5| R01 ****E45 ****130| MOTOR SUPPORT| 1| |
1| | 1| | 1| |
5| R01 ****E46 ****130| MOTOR SUPPORT| | 1| |
1| | 1| | 1|
6| R01 ****E43 ****686| BASE ASSY| 1| 1|
1| 1| 1| 1| 1| 1|
7| T 7W E00 617| CONDUIT PLATE| 1| 1| 1| 1|
1| 1| 1| 1|
8| T7W E12 682| BACK PANEL| 1| 1| 1|
1| 1| 1| 1| 1| Includes No. 10
9| T 7W E24 667| SERVICE PANEL| 1| 1| 1| 1|
1| 1| 1| 1|
10| R01 ****E03 ****633| SERVICE PLATE| 1| 1|
1| 1| 1| 1| 1| 1|
11| R01 ****E04 ****684| REAR GUARD| 1| |
1| | 1| | 1| |
11| R01 ****E05 ****684| REAR GUARD| | 1| |
1| | 1| | 1|
12| T 7W E15 641| TOP PANEL| 1| 1| 1| 1|
1| 1| 1| 1**|
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure.
No.
|
Parts No.
|
Parts Name
| PUZ-A24NHA7| PUZ-A30NHA7| PUY- A24NHA7| PUY- A30NHA7| PUZ-A24NHA7-BS| PUZ-A30NHA7-BS| PUY-A24NHA7- BS| PUY-A30NHA7- BS|
Remarks
---|---|---|---|---|---|---|---|---|---|---|---
1| T 7 W E 1 2 6 6 2| SIDE PANEL (L)| 1| 1| 1|
1| 1| 1| 1| 1|
2| R 0 1 E 0 1 6 5 5| HANDLE| 3| 3| 3|
3| 3| 3| 3| 3|
3| R 0 1 E 0 1 6 3 1| ICE GUARD| 1| 1| 1|
1| 1| 1| 1| 1|
4| R 0 1 E 7 4 6 9 1| WIRE GRILLE| 1| 1|
1| 1| 1| 1| 1| 1|
5| R 0 1 E 2 2 6 6 8| FRONT PANEL| 1| 1|
1| 1| 1| 1| 1| 1|
6| R 0 1 E 5 6 6 8 6| BASE ASSY| 1| 1| 1|
1| 1| 1| 1| 1|
7| T 7 W E 2 0 1 3 0| MOTOR SUPPORT| 1| 1| 1|
1| 1| 1| 1| 1|
8| T 7 W E 0 1 6 1 7| CONDUIT PLATE| 1| 1| 1|
1| 1| 1| 1| 1|
9| R 0 1 E 4 0 6 5 8| COVER PANEL (FRONT)| 1|
1| 1| 1| 1| 1| 1| 1|
10| R 0 1 E 2 4 6 5 8| COVER PANEL (REAR)| 1|
1| 1| 1| 1| 1| 1| 1|
11| R 0 1 E 0 6 6 5 5| HANDLE (REAR)| 1| 1|
1| 1| 1| 1| 1| 1|
12| T 7 W E 4 1 6 6 1| SIDE PANEL (R)| 1| 1|
1| 1| 1| 1| 1| 1|
13| T 7 W E 1 0 6 6 7| SERVICE PANEL| 1| 1| 1|
1| 1| 1| 1| 1|
14| T 7 W A 0 0 0 0 5| BRAND LABEL| 1| 1| 1|
1| 1| 1| 1| 1|
15| T 7 W E 0 7 6 9 8| REAR GUARD| 1| 1| 1|
1| 1| 1| 1| 1|
16| T 7 W E 1 6 6 4 1| TOP PANEL| 1| 1| 1|
1| 1| 1| 1| 1|
STRUCTURAL PARTS
- PUZ-A36NKA7
- PUZ-A42NKA7
- PUY-A36NKA7
- PUY-A42NKA7
- PUZ-A36NKA7-BS
- PUZ-A42NKA7-BS
- PUY-A36NKA7-BS
- PUY-A42NKA7-BS
- The part quantity below indicates the required number of pieces per unit.
- The circled No. indicates that the part is not shown in the figure.
No.
|
Parts No.
|
Parts Name
| PUZ-A36NKA7| PUZ-A42NKA7| PUY- A36NKA7| PUY- A42NKA7| PUZ-A36NKA7-BS| PUZ-A42NKA7-BS| PUY-A36NKA7- BS| PUY-A42NKA7- BS|
Remarks
---|---|---|---|---|---|---|---|---|---|---|---
1| R 0 1 E 3 0 6 6 2| SIDE PANEL (L)| 1| 1| 1|
1| 1| 1| 1| 1|
2| R 0 1 E 0 5 6 5 5| HANDLE (FRONT)| 2| 2| 2|
2| 2| 2| 2| 2|
3| R 0 1 E 0 2 6 3 1| ICE GUARD| 2| 2| 2|
2| 2| 2| 2| 2|
4| R 0 1 E 7 3 6 9 1| WIRE GRILLE| 2| 2| 2|
2| 2| 2| 2| 2|
5| R 0 1 E 2 3 6 6 8| FRONT PANEL| 1| 1| 1|
1| 1| 1| 1| 1|
6| T 7 W E 2 6 6 8 6| BASE ASSY| 1| 1| 1|
1| 1| 1| 1| 1|
7| R 0 1 E 5 9 1 3 0| MOTOR SUPPORT| 1| 1| 1|
1| 1| 1| 1| 1|
8| T 7 W E 0 4 6 1 7| CONDUIT PLATE| 1| 1| 1|
1| 1| 1| 1| 1|
9| R 0 1 E 3 5 6 5 8| COVER PANEL (FRONT)| 1| 1|
1| 1| 1| 1| 1| 1|
10| R 0 1 E 3 6 6 5 8| COVER PANEL (REAR)| 1| 1|
1| 1| 1| 1| 1| 1|
11| R 0 1 E 0 6 6 5 5| HANDLE (REAR)| 2| 2| 2|
2| 2| 2| 2| 2|
12| T 7 W E 3 7 6 6 1| SIDE PANEL (R)| 1| 1|
1| 1| 1| 1| 1| 1|
13| T 7 W E 2 1 6 6 7| SERVICE PANEL| 1| 1| 1|
1| 1| 1| 1| 1|
14| T 7 W A 0 0 0 0 5| BRAND LABEL| 1| 1| 1|
1| 1| 1| 1| 1|
15| R 0 1 E 1 0 6 9 8| REAR GUARD| 1| 1| 1|
1| 1| 1| 1| 1|
16| R 0 1 E 3 6 6 4 1| TOP PANEL| 1| 1| 1|
1| 1| 1| 1| 1|
Copyright 2016 MITSUBISHI ELECTRIC CORPORATION
Issued : Nov. 2021 No. OCB636 REVISED EDITION-B
Issued : Jul. 2018 No. OCB636 REVISED EDITION-A
Published : Oct. 2016 No. OCB636
Made in Japan
Specifications are subject to change without notice