Panasonic CU-2TZ50TBE - User Manual

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WEB-ACXF55-35140-EN

Operating Instructions

Air Conditioner

Model No.

Indoor Unit Outdoor Unit

CS-TZ20ZKEW

CS-TZ25ZKEW

CS-TZ35ZKEW

CS-TZ42ZKEW

CS-TZ50ZKEW

CS-RZ25ZKEW

CS-RZ35ZKEW

CS-RZ50ZKEW

CS-MTZ16ZKE

Single Split

CU-TZ20ZKE

CU-TZ25ZKE

CU-TZ35ZKE

CU-TZ42ZKE

CU-TZ50ZKE

CU-RZ25ZKE

CU-RZ35ZKE

CU-RZ50ZKE

Multi Split

CU-2Z35TBE

CU-2Z41TBE

CU-2Z50TBE

CU-3Z52TBE

CU-3Z68TBE

CU-4Z68TBE

CU-4Z80TBE

CU-5Z90TBE

CU-2TZ41TBE

CU-2TZ50TBE

CU-3TZ52TBE

nanoeX

ENGLISH

Before operating the unit, please read these operating

instructions thoroughly and keep them for future reference.

Before installation, the installer should:

Read the Installation Instructions, then request the customer

keep them for future reference.

Remove the remote control packed with the indoor unit.

Main Page

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Questions and Answers

L
Lauren MurrayAug 28, 2025
Why does my Panasonic CU-2TZ50TBE Air Conditioner outdoor unit emit water or steam?
- W
  williamsheatherAug 28, 2025
  The outdoor unit emits water or steam because condensation or evaporation occurs on the pipes.
K
Kathleen BlanchardAug 31, 2025
Why does my room have a peculiar odour when using Panasonic CU-2TZ50TBE Air Conditioner?
- K
  kweberAug 31, 2025
  If the room has a peculiar odour when your Panasonic Air Conditioner is running, this may be due to damp smell emitted by the wall, carpet, furniture or clothing.
R
Rebecca ConleyAug 27, 2025
How to improve HEAT/COOL mode efficiency in Panasonic Air Conditioner?
- K
  Kenneth BeckAug 27, 2025
  If your Panasonic Air Conditioner isn't working efficiently in HEAT/COOL mode, ensure the temperature is set correctly, all doors and windows are closed, the filters are clean or replaced, and there are no obstructions at the air inlet and outlet vents.
K
Kara CookAug 27, 2025
What to do if my Panasonic CU-2TZ50TBE Air Conditioner doesn't receive the remote control signal?
- J
  Jamie RomeroAug 27, 2025
  If the Panasonic Air Conditioner unit does not receive the signal from the remote control, ensure that the receiver is not obstructed. Note that certain fluorescent lights may interfere with the signal transmitter; consult an authorised dealer.
L
Lisa SantiagoAug 27, 2025
Why is my Panasonic Air Conditioner remote control not working?
- W
  William BrownAug 27, 2025
  If the remote control for your Panasonic Air Conditioner is not working, ensure the batteries are inserted correctly and replace weak batteries.
C
christinahuffmanAug 27, 2025
Why does my Panasonic CU-2TZ50TBE outdoor unit emit water/steam?
- A
  Amber ChurchAug 27, 2025
  If the outdoor unit of your Panasonic Air Conditioner emits water or steam, it is due to condensation or evaporation occurring on the pipes.
L
larrywilliamsAug 27, 2025
Why is the TIMER indicator always on on my Panasonic CU-2TZ50TBE?
- M
  Matthew MccoyAug 27, 2025
  If the TIMER indicator on your Panasonic Air Conditioner is always on, it means the timer setting repeats daily once set.
M
msawyerAug 26, 2025
What to do if Panasonic Air Conditioner remote control does not work?
- S
  smithjosephAug 26, 2025
  If the remote control for your Panasonic Air Conditioner isn't working, first ensure that the batteries are inserted correctly. If the display is dim or the transmission signal is weak, try replacing the batteries.
J
Joanne ColemanAug 26, 2025
Why does my Panasonic CU-2TZ50TBE Air Conditioner's outdoor unit emit water or steam?
- M
  Mary LiuAug 26, 2025
  The water or steam emitted from the outdoor unit of your Panasonic Air Conditioner is due to condensation or evaporation occurring on the pipes.
M
Matthew TurnerAug 26, 2025
What to do if my Panasonic CU-2TZ50TBE Air Conditioner's HEAT/COOL mode isn't working efficiently?
- S
  Sean GriffinAug 26, 2025
  If your Panasonic Air Conditioner isn't heating or cooling efficiently, make sure that you set the temperature correctly, close all doors and windows, clean or replace the filters, and clear any obstructions at the air inlet and outlet vents. Also, check if the circuit breaker has tripped or if any timers have been set.

Summary

Quick Start Guide

Battery Installation Guide

Guide to install batteries in the remote control.

Setting the Remote Control Clock

Instructions to set the clock on the remote control.

Core Operation Guide

Powering the Unit On;Off

How to turn the air conditioner ON/OFF using the remote.

Selecting Operation Modes

How to choose operation modes like AUTO, HEAT, COOL, DRY.

Adjusting the Temperature Setting

How to adjust the target temperature using the remote control.

Power Supply and Unit Safety Guidelines

Refrigerant and Component Safety

R32 Refrigerant Safety

Safety measures for using R32 flammable refrigerant.

Remote Battery and Power Cord Safety

Installation and Piping Safety Procedures

Piping and Component Protection

Servicing and Work Safety Protocols

Service Personnel Qualifications

Qualifications and duties of service personnel.

Workplace Safety Procedures

Safety checks and practices before and during work.

Equipment Checks and Electrical Safety Standards

Refrigerating Equipment Checks

Electrical Device Safety Checks

Repair, Cabling, and Leak Detection Safety Measures

Cabling and Leak Detection Safety

Refrigerant Handling and Charging Safety

Refrigerant Removal and Evacuation

Procedures for safe refrigerant removal and evacuation.

Refrigerant Charging Procedures

Safe practices for charging refrigerant systems.

Decommissioning and Refrigerant Recovery Safety

Unit Decommissioning Steps

Steps for safely decommissioning the unit.

Refrigerant Recovery Guidelines

Guidelines for safe refrigerant recovery and cylinder handling.

Troubleshooting: Common Symptoms

Troubleshooting: Specific Checks

Troubleshooting: Error Code Retrieval

This document provides operating instructions for a Panasonic air conditioner, covering its functions, usage, and maintenance.

Function Description

The Panasonic air conditioner is designed to provide comfortable indoor climate control. It offers both single split and multi split system configurations, allowing for flexible installation to suit various needs. A notable feature is the built-in Network Adaptor, which enables remote control of the heat pump from anywhere, enhancing convenience and accessibility. The unit operates with R32 refrigerant, a mild flammable refrigerant, and includes specific safety precautions related to its handling and installation.

The air conditioner supports various operation modes:

AUTO Mode: The unit automatically selects an operation mode based on the setting and room temperature. In multi-split systems, it selects a mode every 3 hours based on setting, room, and outdoor temperature.
HEAT Mode: Provides heating, with the power indicator blinking initially as the unit warms up. If the HEAT mode system is locked and another mode is selected, the indoor unit stops and the power indicator blinks.
COOL Mode: Offers efficient comfort cooling.
DRY Mode: Operates at a low fan speed for gentle cooling, reducing air dryness.

The unit also incorporates energy-saving temperature settings, recommending specific ranges for HEAT (20.0 °C ~ 24.0 °C / 68 °F ~ 75 °F) and COOL (26.0 °C ~ 28.0 °C / 79 °F ~ 82 °F) modes to optimize energy consumption.

Usage Features

The air conditioner is controlled via a remote control, which should be used within 8 meters of the indoor unit's receiver.

Basic Operation:

Start/Stop: Press the OFF/ON button to start or stop the unit. When the unit is ON, "OFF" disappears from the remote control display.
Mode Selection: Press the MODE button to select AUTO, HEAT, DRY, or COOL.
Temperature Adjustment: Use the TEMP UP and TEMP DOWN buttons to select the desired temperature, ranging from 16.0 °C to 30.0 °C (60 °F to 86 °F). Holding the SELECT button for approximately 10 seconds will switch the temperature display between °C and °F.

Clock Setting:

To set the clock, press the CLOCK button, then press SELECT to set the time. Holding CLOCK for approximately 5 seconds toggles between 12-hour (am/pm) and 24-hour formats. Confirm with SET.

Airflow Direction:

Vertical Airflow: The AIR SWING button adjusts the upper direction of airflow. The flap swings up/down automatically in COOL/DRY mode and fixes at the upper position once the temperature is achieved. In HEAT mode, it fixes at a predetermined position or swings up-down automatically depending on the discharge air temperature.
Horizontal Airflow: This can be manually adjusted.
MILD DRY (Not applicable for Multi split system): When vertical airflow is set to AUTO, it stops at the lower position to avoid cold air contact, but can be manually adjusted.

Fan Speed and Quiet Operation:

Fan Speed: The FAN SPEED/QUIET button allows selection of fan speed. In FAN AUTO, the speed adjusts automatically. Selecting the lowest fan speed provides a low noise operation.
QUIET: This operation reduces airflow noise.

Fresher and Cleaner Environment (nanoe™ X):

The nanoe™ X function provides cleaner air, moisturizes skin and hair, and deodorizes odors.
To activate, press the nanoe™ X button when the unit is ON or OFF. Fan speed follows the remote control setting during individual nanoe™ X operation. If activated before turning off, it resumes when the unit is turned on. Press the button again to cancel.
In multi-split systems, if one indoor unit activates HEAT mode, individual nanoe™ X operation on other units cannot be performed or will stop.

Quick Temperature Reach (POWERFUL):

The POWERFUL button activates a quick temperature reach function, which automatically stops after 20 minutes. Press again to cancel.

Humidity and Moisture Level Improvement (MILD DRY - Not applicable for Multi split system):

The MILD DRY button reduces air dryness during COOL mode. Press again to cancel.

Sleep Mode:

The SLEEP button provides a comfortable sleeping environment by automatically adjusting the sleep pattern temperature. The indoor unit indicator dims when activated (unless manually dimmed). This function can be combined with the activation timer (0.5 to 9 hours) and has priority over the OFF timer. It can be cancelled by pressing the button until the sleep timer reaches 0.0h.

Timer Setting:

The unit allows setting two different preset times for turning ON or OFF. Select TIMER ON or TIMER OFF, adjust the time using SELECT, and confirm with SET. The nearest timer setting will activate in sequence and repeat daily. To cancel, select the respective setting and press CANCEL. If cancelled manually or due to power failure, it can be restored.

Auto Restart Control:

After a power failure, the unit automatically restarts with the last operation mode and airflow direction. This feature is not applicable when the TIMER is set.

Wireless LAN Module:

For setup, refer to the Setup Instructions Web Manual. The Wireless LAN LED can be turned off by pressing the Wireless LAN button if the app is not used.

Maintenance Features

Regular cleaning is crucial for optimal performance and to prevent malfunctions, such as the "H 99" error code.

General Precautions:

Switch off the power supply and unplug the unit before cleaning.
Avoid touching the aluminum fin due to sharp parts.
Do not use benzine, thinner, or scouring powder.
Use only soap (~ pH 7) or neutral household detergent.
Do not use water hotter than 40 °C / 104 °F.

Indoor Unit Cleaning:

Surface: Handle with care to avoid scratches. Wipe gently with a soft damp cloth.
Coils and Fans: Should be periodically cleaned by an authorized dealer.
Front Panel: Wash gently and dry. To remove, pull upward, then hold horizontally, match and push in, close down, and press both ends.
Air Filters: Clean every 2 weeks. Wash/rinse gently with water, dry thoroughly under shade (away from fire or direct sunlight), and replace any damaged filters. To remove, raise over the horizontal level. To attach, insert into the unit.

Outdoor Unit Cleaning:

Clean debris surrounding the unit.
Clear any blockages from the drain pipe.

Seasonal Inspection (after extended non-use):

Check batteries in the remote control.
Check for obstructions around air inlets and outlet vents.
Use AUTO OFF/ON on the unit to select COOL or HEAT mode. After 15 minutes, a temperature difference of ≥ 8 °C/14.4 °F for COOL and ≥ 14 °C/25.2 °F for HEAT between air inlet and outlet vents is normal.

Extended Non-Use Preparation:

Activate HEAT mode for 2-3 hours to remove moisture from internal parts, preventing mold growth.
Turn off the power supply and unplug the unit.
Remove batteries from the remote control.

Troubleshooting:

The manual provides a comprehensive troubleshooting guide for common symptoms (e.g., indicator blinks, noisy operation, remote control issues, peculiar odors, cracking sounds, water flow, mist, discoloration) and their causes.
For error codes, if the TIMER indicator blinks, use the remote control to retrieve the code: press TIMER ON/OFF for 5 seconds, then press repeatedly until a beep is heard, note the code, turn off the unit, and inform an authorized dealer.