serin labsCheck Your Mitsubishi Model
Type the model number of your indoor unit to see whether it is compatible.
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How to Check Your Unit
- Check your model number. It is on a label on the indoor unit (usually on the right side behind the front panel). Mitsubishi Electric models start with prefixes like MSZ, MSY, MFZ, MLZ, SLZ, SEZ, SVZ, PEAD, PVA, PKA, PCA, PLA, or PEFY.
- Look for the CN105 port. Open the front panel and locate the main control board. The CN105 port is a small 5-pin connector (usually red, sometimes white) labeled "CN105" on the PCB. See the wiring reference for what it looks like.
- Check below. If your model series is in the compatible table, it is supported. Check even if you have already found a CN105 port: on a few series the connector is fitted but the unit does not support control through it.
- Check that the port is free. A wired wall controller such as an MHK2 or a PAC-SDW01RC-1 reaches the unit through CN105 as well, and the controller cannot share the port. CN105 splitters do not work with it, so anything already plugged in has to come out first. The handheld remote does not use the port and is unaffected.
Browse by Unit Type
Pick yours to jump to the list.
Compatible Units
Six families of Mitsubishi Electric indoor unit carry CN105, covering nearly every residential and light-commercial model sold since about 2006. A good proxy: if your unit works with Kumo Cloud (North America) or MELCloud (Europe/global), it has a CN105 port.
Wall-mounted
| Series | Examples & notes | Verdict |
|---|---|---|
| MSZ-FX, MSZ-GX, MSZ-HX, MSZ-WX, MSZ-EX, MSZ-JX | MSZ-FX15NLMSZ-GX12NL NA (R454B) · Newest 2025 low-GWP models |
Compatible |
| MSZ-FS | MSZ-FS06NAMSZ-FS09NAMSZ-FS12NAMSZ-FS18NA NA · Widely confirmed |
Compatible |
| MSZ-GS | MSZ-GS06NAMSZ-GS09NAMSZ-GS12NAMSZ-GS15NA NA · Widely confirmed |
Compatible |
| MSZ-GL | MSZ-GL06NAMSZ-GL09NAMSZ-GL12NAMSZ-GL15NAMSZ-GL18NAMSZ-GL24NA NA, AU · Widely confirmed |
Compatible |
| MSZ-FH | MSZ-FH06NAMSZ-FH09NAMSZ-FH12NAMSZ-FH15NAMSZ-FH18NA NA, EU · Widely confirmed; Hyper-Heat |
Compatible |
| MSZ-EF | MSZ-EF09NAMSZ-EF15NAMSZ-EF25VGKMSZ-EF42VE NA, EU · Designer series |
Compatible |
| MSZ-AP | MSZ-AP20VGKMSZ-AP25VGKMSZ-AP35VGDMSZ-AP50VGK EU, AU/NZ · Widely confirmed |
Compatible |
| MSZ-AY | MSZ-AY20VGKMSZ-AY25VGKMSZ-AY35VGKMSZ-AY50VGK EU · Confirmed |
Compatible |
| MSZ-LN | MSZ-LN25VG2MSZ-LN35VGWMSZ-LN50VG2W EU, NZ · Kirigamine Style; some have built-in WiFi on CN110 — CN105 is separate and available |
Compatible |
| MSZ-HR | MSZ-HR25VFMSZ-HR35VFMSZ-HR45VFMSZ-HR50VF EU · Widely confirmed |
Compatible |
| MSZ-SF | MSZ-SF25VEMSZ-SF35VE3MSZ-SF50VE3 EU · Confirmed |
Compatible |
| MSZ-YK | MSZ-YK18VA EU/Asia · Confirmed via owner report |
Compatible |
| MSZ-BT, MSZ-DM, MSZ-RW, MSZ-FT, MSZ-GF, MSZ-WR, MSZ-HM, MSZ-JP | MSZ-BTMSZ-DMMSZ-RWMSZ-FTMSZ-GFMSZ-WRMSZ-HMMSZ-JP Various · All confirmed via Kumo Cloud / MELCloud / community reports |
Compatible |
| MSZ-FE | MSZ-FE09NA-8 has CN105MSZ-FE12NA-8 has CN105MSZ-FE18NA has CN105MSZ-FE09NA no CN105MSZ-FE12NA no CN105 NA · 09/12NA-8 and 18NA have CN105; base 09/12NA (no suffix) does not, per Mitsubishi's official M-Series controls compatibility table |
Suffix decides |
| MSZ-GE, MSY-GE | MSZ-GE25VA has CN105MSZ-GE09NA-8 has CN105MSZ-GE24NA has CN105MSZ-GE06NA no CN105MSZ-GE09NA no CN105MSZ-GE12NA no CN105MSZ-GE15NA no CN105MSZ-GE18NA no CN105 NA, EU/Asia · EU/Asia VA-suffix trims (e.g. MSZ-GE25VA) confirmed via owner report. NA is suffix-dependent: NA-8, NA-9, and GE24NA have CN105; base 06–18NA (no suffix) does not, per Mitsubishi's official M-Series controls compatibility table |
Suffix decides |
| MSZ-D, MSY-D | MSZ-D…NA-8 has CN105MSZ-D…NA no CN105 NA · Only the -NA-8 suffix has CN105; base -NA models do not, per Mitsubishi's official M-Series controls compatibility table |
Suffix decides |
| MSY (cooling-only) | MSY-GL09NAMSY-GE10VAMSY-GX18NL NA, Asia · Same control board as MSZ equivalents, so the same caveats apply: MSY-GL and MSY-GS are compatible, MSY-D and MSY-GE are suffix-dependent (see the rows above), and MSY-A has no CN105 |
Compatible |
| MSXY (Asia-Pacific) | MSXY-FN10VEMSXY-FN13VEMSXY-FP10VG Singapore, Asia · Starmex-branded; confirmed |
Compatible |
| MSZ-FD | MSZ-FD Marked "NO" in the CN105 Remote Controllers, Interfaces, and Accessories row of Mitsubishi's official M-Series controls compatibility table |
No control |
| MSZ-HE | MSZ-HE Marked "NO" in the CN105 Remote Controllers, Interfaces, and Accessories row of Mitsubishi's official M-Series controls compatibility table |
No control |
| MSZ-A, MSY-A | MSZ-AMSY-A Marked "NO" in Mitsubishi's official M-Series controls compatibility table. Some of these units do have a CN105 connector fitted, but it isn't wired for control — the port being there doesn't make the unit work |
No control |
| MS-WA | MS-WA Marked "NO" in the CN105 Remote Controllers, Interfaces, and Accessories row of Mitsubishi's official M-Series controls compatibility table |
No control |
Floor-mounted
| Series | Examples & notes | Verdict |
|---|---|---|
| MFZ-KX (R454B), MFZ-KJ, MFZ-KA | MFZ-KA09NAMFZ-KJ18NA MFZ-KA and MFZ-KJ confirmed on Mitsubishi's official M-Series controls compatibility table |
Compatible |
| MFZ-KT | MFZ-KT25VGMFZ-KT35VG Some MFZ-KT models report CN104 only — verify CN105 is present |
Verify port |
Ceiling cassette
| Series | Examples & notes | Verdict |
|---|---|---|
| MLZ-KX (R454B), MLZ-KP, MLZ-KY, MLZ-KA | MLZ-KP09NAMLZ-KP12NAMLZ-KP18NAMLZ-KA50VA MLZ-KP and MLZ-KY confirmed on Mitsubishi's official M-Series controls compatibility table; horizontal vane not available on all models |
Compatible |
| SLZ-NL (R454B), SLZ-KA, SLZ-KF | SLZ-KA12NASLZ-KF35VASLZ-M50FA Four-way cassette; SLZ-KA and SLZ-KF confirmed on Mitsubishi's official M-Series controls compatibility table |
Compatible |
Ducted & air handlers
| Series | Examples & notes | Verdict |
|---|---|---|
| SEZ-NL (R454B), SEZ-M | SEZ-M50DAL Confirmed; some older SEZ units may need 9600 baud |
Compatible |
| SEZ-KD | SEZ-KD09NA4 has CN105SEZ-KD12NA4R1 has CN105SEZ-KD25VAQ has CN105SEZ-KD09NA no CN105 Suffix-dependent in North America: NA4 and NA4R1 have CN105, base NA (no suffix) does not, per Mitsubishi's official M-Series controls compatibility table |
Suffix decides |
| SVZ-NL (R454B), SVZ-KP, MVZ-A | SVZ-KP18NASVZ-KP24NASVZ-KP36NAMVZ-A24AA4MVZ-A30AA7 Multi-position air handler; confirmed. SVZ-KP and both MVZ trims (AA4 and AA7) have CN105 on Mitsubishi's official M-Series controls compatibility table |
Compatible |
| PEAD-NL (R454B), PEAD-M, PEAD-RP, PEAD-SP, PEAD-A | PEAD-A18AA7PEAD-M100JAAR1PEAD-RP100EA2 Mid-static ducted; confirmed. Some models have quirks. |
Compatible |
| PVA-NL (R454B), PVA-A | PVA-A18AA7PVA-A36AA7PVA-A42AA7 Multi-position air handler; confirmed |
Compatible |
| PVFY-NAMU | PVFY-P36NAMUPVFY-P54NAMU City Multi air handler; confirmed |
Compatible |
P-Series & City Multi
| Series | Examples & notes | Verdict |
|---|---|---|
| PKA, PCA, PLA, PEA, PAA | PKA-A36KA7PCA-A30PLA-A18BA All P-Series indoor units have CN105; confirmed via Kumo Cloud |
Compatible |
| PEFY (City Multi) | PEFY-P32VMA-E2PEFY-P100VMA-E Newer City Multi indoor units have native CN105. Older models may need a PAC-IT51AD-E adapter (CN100 → CN105) |
Adapter |
Trane / American Standard
| Series | Examples & notes | Verdict |
|---|---|---|
| NAXWST, NTXWPH, NTXMPH, NTXWST, NTYWST | NAXWST09A112ABNTXWPH09B112AANTXWST12A112AANTYWST12A112AA Same hardware as Mitsubishi; confirmed compatible. NTXWST/NTYWST A112AA indoor boards have CN105 per Trane service manual OBHT732 |
Compatible |
Feature Availability
All compatible units support basic climate control (mode, temperature, fan speed). Some advanced features vary by model.
| Feature | Notes | Availability |
|---|---|---|
| Climate control (mode, temp, fan) | Core functionality; always works |
All models |
| Vertical vane | Not applicable to ducted units |
Most wall-mount units |
| Horizontal vane (wide vane) | Not all models have motorized horizontal vanes |
Some wall-mount units |
| Outside air temperature | Depends on outdoor unit; may report -63.5°C when compressor is idle (normal). Not available on some multi-zone configurations. |
Many models |
| Compressor frequency | Often unavailable on multi-split systems. Some models always report 0. |
Many single-zone systems |
| Input power (W) & energy (kWh) | Varies significantly by model. Available on some MSZ-GS, MSZ-HR, MSZ-LN, MSZ-WX models. Not available on many others. |
Some models |
| Runtime hours | Available on select models |
Some models |
| i-See sensor | Sensor data readable on supported models; direct control not yet available |
Models with i-See hardware |
| Remote temperature sensor | Override the unit's internal temperature reading with an external sensor (Home Assistant sensor for ESPHome, BLE sensor for HomeKit) |
Most models |
What Will Not Work
Three cases apply, and the port being present does not overrule them.
Mitsubishi Heavy Industries
SRK · SRC · SRF
A different company from Mitsubishi Electric. These units use a different protocol and have no CN105 connector.
Air-to-water heat pumps
Ecodan · Zubadan · Geodan
The connector is there but the serial protocol differs. See Mitsubishi-CN105-Protocol-Decode for Ecodan-specific projects.
No usable CN105
pre-2006 · MSZ-HJ · MSH-BF · LGH · MSZ-ZF
Pads without a connector, or no port at all. Soldering is possible on MSZ-HJ but not recommended. Lossnay (LGH) ventilators use a different protocol.
Common Questions
I found a CN105 port. Is my unit compatible?
Usually yes, but the port alone is not proof. Most Mitsubishi Electric indoor units with a CN105 connector use the same serial protocol as this controller, so you can flash the firmware, wire it up, and it should work.
The exceptions are MSY/MSZ-A, MSZ-FD, MSZ-HE and MS-WA, plus the unsupported trims of MSZ-D, MSZ-FE, MSY/MSZ-GE and SEZ-KD: some of those boards carry a CN105 connector that is not wired for control, so check your model number as well as the port.
Something is already plugged into my CN105 port
Then it has to come out. The controller needs CN105 to itself, and most indoor units have only one. The usual occupant is a wired wall controller: MHK2, MHK1, PAC-SDW01RC-1, or a PAR-series panel, all of which reach the unit through that port.
CN105 splitters do not work with the controller, so there is no way to run both at once. Unplugging the wall controller frees the port; the handheld infrared remote does not use it and goes on working either way.
My unit has CN110 but not CN105. Will it work?
CN110 is where Mitsubishi's own WiFi adapter (MELCloud / Kumo Cloud) connects. It is a separate port from CN105. Many newer units have both: CN110 for the factory WiFi module and CN105 for additional serial communication. Look for CN105 elsewhere on the control board. If your unit only has CN110 and no CN105, it is not compatible with this project.
My unit has CN100 instead of CN105
Some older City Multi (VRF) indoor units have CN100 instead of CN105. You can use a Mitsubishi PAC-IT51AD-E or PAC-IT52AD-E signal adapter to convert CN100 to a CN105-compatible interface. These adapters are not interchangeable; check which one your unit requires.
I have a multi-zone system. Does it work?
Yes. Each indoor head in a multi-zone system has its own CN105 port. You need one controller per indoor unit. The outdoor unit (MXZ series) does not need a controller.
Note: some advanced sensors like compressor frequency and outside air temperature may not be available when multiple indoor units share a single outdoor unit.
My model is not on any list. Can I try it anyway?
If your Mitsubishi Electric unit has a CN105 port, it is worth trying. The serial protocol is standardized across Mitsubishi Electric's product line. If it works, please report it on Discord to help others.
I have a Trane or American Standard heat pump
Many Trane and American Standard ductless systems are rebranded Mitsubishi Electric units. Models starting with NAXWST, NTXWPH, NTXMPH, NTXWST, or NTYWST are Mitsubishi hardware and are compatible.
What do the regional model suffixes mean?
Mitsubishi Electric uses different model suffixes by region for the same hardware. The regional suffix does not affect CN105 compatibility; the same unit series is compatible across all regions.
| Region | Suffix Pattern | Examples |
|---|---|---|
| North America (R410A) | -NA, -NA-U1 | MSZ-GL09NA, MSZ-EF15NAW-U2 |
| North America (R454B) | -NL | MSZ-GX12NL, MSZ-FX15NL |
| Europe (R32) | -VG, -VGK, -VG2 | MSZ-AP25VGK, MSZ-LN35VG2W |
| Europe (R410A) | -VE, -VA, -VF | MSZ-SF35VE3, MSZ-HR35VF |
| Australia / NZ | -VGD, -VGKD, -VAD | MSZ-AP35VGD, MSZ-GE25VAD |
| Asia / Singapore | -VE, -VG (MSXY prefix) | MSXY-FN10VE, MSXY-FP13VG |
Compatibility information is based on community reports, manufacturer documentation, and open-source project data. It may not be exhaustive and is not guaranteed for every unit; always verify both that your model is listed as supported and that a CN105 connector is present on your unit before buying hardware.