SPLIT-TYPE AIR CONDITIONERS - INDOOR UNIT - Revision D - Service Manual - Models OBH548 REVISED EDITION-D

Oct 22, 2026

Service manual for split-type air conditioners indoor units, revised D (OBH548 revised edition-D). Covers included indoor models, notes on RoHS compliance labeling, and strict refrigerant-use requirements to prevent bursts, explosions, or fire. Details technical changes across revisions, including newly added models, specification corrections, and updates for moisture removal values. Provides technical changes and part names and functions, followed by model specifications such as power supply, airflow, moisture removal, sound levels, dimensions, and control voltage.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages48

Reading Time2 h 1 min

AccessFree to download

TECHNICAL CHANGES

New model

Model compatibility and control board changes

Model name and service parts updates

PART NAMES AND FUNCTIONS

SPECIFICATION

Operating range

Power supply

SPLIT-TYPE AIR CONDITIONERS INDOOR UNIT Revision D: • MSZ-GE06/09/12/15/18NA- 9 and MSYGE09/12/15/18NA- 9 have been added. Please void OBH548 REVISED EDITION-C SERVICE MANUAL No. OBH548 REVISED EDITION-D Models MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA MSZ-GE24NA MSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA MSY-GE24NA MSZ-GE06NAMSZ-GE09NA MSZ-GE12NAMSZ-GE15NA MSZ-GE18NA MSY-GE09NAMSY-GE12NA MSY-GE15NAMSY-GE18NA- 8 , 9 Outdoor unit service manual MUZ-GE•NA MUY-GE•NA Series (OBH549) MXZ-B·NA Series (OB444) NOTE: RoHS compliant products have mark on the spec name plate. | Use the speciﬁed refrigerant only | | --- | | Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by failure to follow the instructions. | Revision A: • MSZ-GE24NA and MSY-GE24NA have been added. Revision B: • MSZ-GE06/09/12/15/18NA- 8 and MSY-GE09/12/15/18NA- 8 have been added. Revision C: • Specification has been corrected. The value of "Moisture removal" for MSZ-GE24NA and MSY-GE24NA has been corrected. [2.7 pt./h 5.1 pt./h] Revision D: • MSZ-GE06/09/12/15/18NA- 9 and MSY-GE09/12/15/18NA- 9 have been added. 1 TECHNICAL CHANGES MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NA MSZ-GE24NAMSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA MSY-GE24NA 1. New model MSZ-GE06NA MSZ-GE06NA- MSZ-GE09NA MSZ-GE09NA- MSZ-GE12NA MSZ-GE12NA- MSZ-GE15NA MSZ-GE15NA- MSZ-GE18NA MSZ-GE18NA- MSY-GE09NA MSY-GE09NA- MSY-GE12NA MSY-GE12NA- MSY-GE15NA MSY-GE15NA- MSY-GE18NA MSY-GE18NA- 1. These models have been modified to be compatible with Honeywell remote controller. 2. Indoor electronic control P.C. board has been changed. MSZ-GE06NA- MSZ-GE06NA- MSZ-GE09NA- MSZ-GE09NA- MSZ-GE12NA- MSZ-GE12NA- MSZ-GE15NA- MSZ-GE15NA- MSZ-GE18NA- MSZ-GE18NA- MSY-GE09NA- MSY-GE09NA- MSY-GE12NA- MSY-GE12NA- MSY-GE15NA- MSY-GE15NA- MSY-GE18NA- MSY-GE18NA- 1. Model name has been changed. 2. New service parts numbers (Refer to OBB548 1-9 to 1-12. ) OBH548D 2 2 PART NAMES AND FUNCTIONS MSZ-GE06NA MSZ-GE09NA MSZ-GE12NA MSZ-GE15NA MSZ-GE18NAMSY-GE09NA MSY-GE12NA MSY-GE15NA MSY-GE18NA Front panel | | Installation plate | 1 | | --- | --- | --- | | | Installation plate ¿xing screw 4 × 25 mm | 5 | | | Remote controller holder | 1 | | | Fixing screw for 3.5 × 16 mm (Black) | 2 | | | Battery (AAA) for remote controller | 2 | | | Wireless remote controller | 1 | | | Felt tape (Used for left or left-rear piping) | 1 | OBH548D 3 MSZ-GE24NA MSY-GE24NA Front panel Air ¿lter (Nano platinum filter) Air cleaning filter (Electrostatic anti-allergy enzyme filter) Air inlet Air outlet Heat exchanger Horizontal vane Display section Remote controller ACCESSORIES | | Installation plate | 1 | | --- | --- | --- | | | Installation plate ¿xing screw 4 × 25 mm | 7 | | | Remote controller holder | 1 | | | Fixing screw for 3.5 × 16 mm (Black) | 2 | | | Battery (AAA) for remote controller | 2 | | | Wireless remote controller | 1 | | | Felt tape (Used for left or left-rear piping) | 1 | | | Air cleaning ¿lter | 2 | OBH548D 4 3 SPECIFICATION | Indoor model | | | MSZ-GE06NA | MSZ-GE09NA
MSY-GE09NA | MSZ-GE12NA
MSY-GE12NA | | --- | --- | --- | --- | --- | --- | | Power supply | V, phase, Hz | | 208/230, 1, 60 | | | | Max. fuse size (time delay)/ Disconnect switch | | A | 15 | | | | Min. circuit ampacity | | A | 1.0 | | | | Fan motor | | F.L.A | 0.76 | | | | AirÀow
Super High - High - Med. -Low-Quiet | COOL Dry (Wet) | CFM | 399-321-237-170-145
(364-286-201-134-109) |

FAQs

What does Revision D add to the OBH548 service documentation?

Revision D adds MSZ-GE06/09/12/15/18NA-9 and MSY-GE09/12/15/18NA-9 to the covered models.

What refrigerant safety requirement is emphasized in the manual?

Only the specified refrigerant must be used; using any other refrigerant may cause a burst, explosion, or fire during use, servicing, or disposal.

Which technical specification categories are provided for the indoor units?

The manual includes power supply, fuse and disconnect switch information, air flow, moisture removal, sound level, condensate drain connection, dimensions, weight, external finish, and control voltage.

Oct 22, 2026

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