Panasonic S-M20PY3E - User Manual

Panasonic S-M20PY3E

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Operating Instructions

Air Conditioner

ENGLISH

Before operating the unit, read these operating instructions thoroughly and

keep them for future reference.

Panasonic Corporation

1006 Kadoma, Kadoma City, Osaka, Japan

WEB-ACXF55-28600-EN

4-Way Cassette 60 × 60

(Type Y3)

Model No.

INDOOR UNIT

4-Way Cassette 60 × 60

(Type Y3)

S-M20PY3E

S-25PY3E

S-36PY3E

S-50PY3E

S-60PY3E

OUTDOOR UNIT

Single Split

See page 12.

RAC Multi

See page 19 (Supplement).

OI_00_331027_EN.indb 1 2021/9/1 13:03:17

Table of Contents

Other manuals for Panasonic S-M20PY3E

Installation Instructions89 pages

Questions and Answers

D
Dustin AlvaradoAug 13, 2025
Why is my Panasonic S-M20PY3E Air Conditioner not cooling or heating properly?
- A
  Adrian KellerAug 13, 2025
  If your Panasonic Air Conditioner's cooling or heating performance is poor, it might be due to the indoor unit's sensor being improperly positioned. The built-in sensor may sense temperature improperly, for example, temperature difference between the ceiling and floor, lighting apparatus, electric fan, windows or waist-high partition walls, etc.. Consult your dealer about changing the temperature sensor setting to use the remote controller's sensor instead. Also, minimize heat sources in the room and reduce the number of people in the room.
K
Kevin GillAug 17, 2025
Why is my Panasonic S-M20PY3E performing poorly in cooling or heating?
- C
  Christopher ObrienAug 17, 2025
  If your Panasonic Air Conditioner isn't cooling or heating well, check if the air intake or air discharge port of the indoor and outdoor units are blocked by dust or obstacles. If so, remove the dust or obstructions to improve performance. Also check the fan speed and change it to 'Medium' or 'High' if it is set to 'Low'.
F
Felicia ReyesAug 21, 2025
What to do if Panasonic S-M20PY3E does not run when turned on?
- G
  Gregory KingAug 21, 2025
  If your Panasonic Air Conditioner isn't running even when powered on, first, press the ON/OFF operation button on the remote controller again, especially if there was a recent power failure. If the operation button is turned off, switch on the power. If the breaker has been tripped, consult your dealer without turning it on. If the fuse is blown, consult your dealer.
R
Raymond HubbardAug 25, 2025
Why is my Panasonic S-M20PY3E making noise?
- U
  ubrownAug 25, 2025
  The noise you hear from your Panasonic Air Conditioner could be the sound of refrigerant liquid flowing inside the unit or the sound of drainage water through the drain pipe. It may also be a cracking sound caused by temperature changes of parts.
N
Nathan MartinAug 28, 2025
Why is my Panasonic S-M20PY3E Air Conditioner emitting fog?
- N
  Nicholas ValenzuelaAug 28, 2025
  Fog coming from your Panasonic Air Conditioner could be due to a dirty heat exchanger inside the unit, requiring cleaning. It is recommended to consult your dealer, as technical engineering is required. Fog can also appear during defrost operation.
J
James McphersonSep 1, 2025
Why is my Panasonic S-M20PY3E Air Conditioner discharging dust?
- S
  Stephanie SandovalSep 1, 2025
  Dust discharge may occur if dust has accumulated inside the indoor unit. Ensure that nanoe™ X is set to ON. If nanoe™ X is already ON, it may be considered abnormal, and you should contact your dealer.
J
James NashSep 5, 2025
What to do if my Panasonic S-M20PY3E smells bad?
- J
  Jesse AdamsSep 5, 2025
  The unit inside is dirty and has accumulated odor components. Contact your dealer for assistance.
A
Ashley SnyderSep 8, 2025
Why is my Panasonic Air Conditioner making noise during heating?
- G
  Gregory LewisSep 9, 2025
  The noise you are hearing during heating operation is likely due to the defrost operation being in process.

Summary

Safety Precautions

General Safety Guidelines

Covers warnings, cautions, prohibited actions, and matters to be observed.

Precautions for Use

Installation and Wiring Requirements

Details on proper installation procedures and electrical wiring standards.

Operation and Energy Saving Tips

Guidance on starting operation and optimizing energy efficiency.

Disposal of Old Equipment

Information on environmentally sound disposal of electrical products.

Names of Parts

Indoor Unit Components Identification

Visual identification of parts for the indoor unit, including air intake and outlet.

Outdoor Unit Models Identification

Visual identification of various outdoor unit models (PZ3, PZ2, PZH3, PZH2).

Maintenance

Unit Cleaning and Maintenance

Instructions and warnings for cleaning indoor and outdoor unit components.

Air Filter Check and Remote Controller Indicators

Guidance on checking the air filter using remote controller indicators.

Operation Mechanism

Heating, Defrosting, and DRY Operation

Explanation of heating performance, defrosting, and DRY mode operation.

Power Failure Recovery

Details on automatic unit resume after a power loss.

nanoe X Function

nanoe X Display and Operation

Illustrates how nanoe™ X appears on the remote controller display during operation.

nanoe X Function Benefits and Activation

Explains the function's role in freshness, cleaning, and its automatic activation.

Internal Cleaning Function

Internal Cleaning Operation Process

Describes the internal drying and nanoe™ X circulation for mold suppression.

Internal Cleaning Function Notes and Compatibility

Information on function control, compatibility, and operation limitations.

Troubleshooting

Indoor Unit Troubleshooting Guide

Identifies common indoor unit symptoms like noise, odor, and airflow issues.

Outdoor Unit Troubleshooting Guide

Addresses issues related to outdoor unit operation, noise, and steam.

Before Requesting Services

Common Issues and Service Contact

Provides solutions for common problems and guidance on contacting service dealers.

Connectable Outdoor Unit Lineup

Europe Connectable Outdoor Unit Lineup

Lists compatible outdoor units for RAC Multi systems in Europe by type and phase.

Oceania Connectable Outdoor Unit Lineup

Lists compatible outdoor units for RAC Multi systems in Oceania by type and phase.

Indoor Unit Specifications

4-Way Cassette 60 x 60 (Type Y3) Specs

Details technical specifications for the Type Y3 indoor unit.

Single Split Outdoor Unit Specifications (Europe - PZH2;PZ2)

Europe: PZH2 and PZ2 Outdoor Unit Details

Specifications for European PZH2 and PZ2 single split outdoor units.

Single Split Outdoor Unit Specifications (Europe - PZ2)

Europe: PZ2 Outdoor Unit Technical Data

Detailed technical specifications for European PZ2 single split outdoor units.

Single Split Outdoor Unit Specifications (Europe - PZH3;PZ3)

Europe: PZH3;PZ3 Outdoor Units (1-phase)

Specifications for European 1-phase PZH3/PZ3 single split outdoor units.

Single Split Outdoor Unit Specifications (Europe - PZ3)

Europe: PZ3 Outdoor Units (1-phase)

Specifications for European 1-phase PZ3 single split outdoor units.

Single Split Outdoor Unit Specifications (Oceania - PZ3)

Oceania: PZ3 Outdoor Units (1-phase)

Specifications for Oceania 1-phase PZ3 single split outdoor units.

Supplement - RAC Multi Outdoor Unit

RAC Multi Outdoor Unit Identification

Visual identification of RAC Multi outdoor units by type.

RAC Multi Outdoor Unit Compatibility

Lists compatible indoor/outdoor units for RAC Multi systems.

Supplement - Multi Split Indoor Unit Specifications

Multi Split Indoor Unit Model Details

Specifications for various Multi Split indoor unit models.

Supplement - Multi Split Outdoor Unit Specifications

Multi Split Outdoor Unit Combinations

Details on outdoor unit combinations with indoor units for multi-split systems.

Panasonic S-M20PY3E Specifications

General

Brand	Panasonic
Model	S-M20PY3E
Category	Air Conditioner
Language	English

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