Model No
TECHNICAL DATA & SERVICE MANUAL
Indoor Unit
Outdoor Unit
When Installing…
SPECIAL PRECAUTIONS
Please Read Before Starting
When Transporting
When Servicing
Check of Density Limit
Others
1. Care regarding tubing
3. Different tools required
Manifold gauge Vacuum pump
Configuration and characteristics of cylinders
Fig.
Fig.
Section 3: ELECTRICAL DATA
Section 1: SPECIFICATIONS
Section 4: SERVICE PROCEDURES
Section 2: PROCESSES AND FUNCTIONS
TENTATIVE
1. SPECIFICATIONS
FEATURES
1. Specifications 1-1Unit Specifications
4-WayCassette Type
POWER SOURCE
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
FEATURES
Wall Mounted Type
1. Specifications 1-1Unit Specifications
POWER SOURCE
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
FEATURES
Ceiling Type
1. Specifications 1-1Unit Specifications
POWER SOURCE
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
FEATURES
Low Silhouette Duct Type
1. Specifications 1-1Unit Specifications
POWER SOURCE
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DIMENSIONS & WEIGHT
1. Specifications 1-1Unit Specifications
POWER SOURCE
FEATURES
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
A Indoor Unit
1. Specifications
1-2Major Component Specifications
Remote controller Optional / Supplied
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1. Specifications
1-2Major Component Specifications
A Indoor Unit
A Indoor Unit
1. Specifications
1-2Major Component Specifications
Remote controller Supplied / Optional
A Indoor Unit
1. Specifications
1-2Major Component Specifications
Remote controller Supplied / Optional
1. Specifications
1-2Major Component Specifications B Outdoor Unit
1. Specifications
1-2Major Component Specifications B Outdoor Unit
U-36PE1U6
1. Specifications
1-2Major Component Specifications B Outdoor Unit
P-42PE1U6
1-2Major Component Specifications B Outdoor Unit
1. Specifications
1. Specifications
1-2Major Component Specifications B Outdoor Unit
U-36PS1U6
1-2Major Component Specifications B Outdoor Unit
1. Specifications
1-35
1-3Other Component Specifications Outdoor Unit
1. Specifications
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1-36
1. Specifications
1-3Other Component Specifications Outdoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
1-37
1. Specifications
1-3Other Component Specifications Outdoor Unit
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Indoor unit : 4-WayCassette Type 26 Type
1. Specifications 1-4Dimensional data
1-4Dimensional data
Indoor unit : 4-WayCassette Type 36, 42Type
1. Specifications
Drain and wiring port 3-5/32
Indoor unit : Wall Mounted Type
1-4Dimensional data
1. Specifications
1. Specifications 1-4Dimensional data
Indoor unit : Ceiling Type 26 Type
1. Specifications 1-4Dimensional data
Indoor unit : Ceiling Type 36, 42 Type
1. Specifications 1-4Dimensional data
Indoor unit : Low Silhouette Duct Type 26 Type
1. Specifications 1-4Dimensional data
Indoor unit : Low Silhouette Duct Type 36 Type
1. Specifications 1-4Dimensional data
Indoor unit : Low Silhouette Duct Type
1. Specifications 1-4Dimensional Data
1. Specifications 1-4Dimensional Data
B Outdoor Unit: U-42PE1U6, U-42PS1U6
U-36PE1U6, U-36PS1U6
1-5Refrigerant Flow Diagram
Outdoor Unit : U-26PE1U6, U-26PS1U6
Indoor Unit : 26, 30, 36 Types
1-5Refrigerant Flow Diagram
Outdoor Unit: U-42PE1U6, U-42PS1U6
1-6Operating Range
1. Specifications
U-26PE1U6, U-26PS1U6 U-36PE1U6, U-36PS1U6
U-42PE1U6, U-42PS1U6
1. Specifications
4-WayCassette Type
1. Specifications 1-8Noise Criterion Curves
S-26PK1U6
1. Specifications 1-8Noise Criterion Curves
208 - 230 V, 1 Phase, 60 Hz
Wall Mounted Type
1. Specifications 1-8Noise Criterion Curves
Ceiling Type
MODEL
1-8Noise Criterion Curves
1. Specifications
Low Silhouette Duct Type
1. Specifications 1-8Noise Criterion Curves
Outdoor Units
26 Type
1. Specifications 1-9Increasing the Fan Speed
How to read the diagram
Indoor Fan Performance
Model: 36, 42 Type
1-10Air throw distance chart 4-WayCassette Type
1. Specifications
Model: 26 Type
Wall Mounted Type
1. Specifications 1-10Air throw distance chart
Model: 36 Type
1-10Air throw distance chart Ceiling Type
1. Specifications
Model: 26 Type
Time delay fuse or
1. Specifications
General Precautions on Wiring
Time delay fuse or
Indoor Unit U1, T1, F1 Types
1. Specifications
Wiring System Diagrams
Outdoor Unit
Fig.
1. Specifications
How to Connect Wiring to the Terminal
For stranded wiring
Indoor unit type
1. Specifications
Outdoor Unit 1. Tubing Size
Table
2. Check of density limit
1. Specifications
Installation requirements
1. Specifications
3. SELECTING THE INSTALLATION SITE
Installation space
Countermeasures against snow and wind
1. Specifications
3-3.Installing the Unit in Heavy Snow Areas
3-2. Air-DischargeChamber for Top Discharge
For U-42PES1U6unit
1. Specifications
3-5.Dimensions of Wind Ducting
For U-26PES1U6 / U-36PES1U6unit
direction
1. Specifications
U-42PES1U6unit
Wind
1. Specifications
U-26PES1U6 / U-36PES1U6 / U-42PES1U6
Required space around outdoor unit
1. Specifications
3-6.Dimensions of Snow Ducting
For U-42PES1U6unit
U-42PES1U6unit
1. Specifications
U-26PES1U6 / U-36PES1U6 / U-42PES1U6
1. Specifications
Reference diagram for snow-proofvents –
Space requirements for setting –
Installation in front-rearrows
1. Specifications
Reference diagram for snow-proofvents –
Space requirements for setting –
4-3.Routing the Tubing and Wiring
4. HOW TO INSTALL THE OUTDOOR UNIT
1. Specifications
4-1.Installing the Outdoor Unit
Ceiling Type
1. Specifications
Indoor Unit 5. SELECTING THE INSTALLATION SITE
5-1.Indoor Unit AVOID
6-1.Suspending the Indoor Unit
6. HOW TO INSTALL THE INDOOR UNIT
1. Specifications
4-WayCassette Type U1 Type
Fig.
1. Specifications
6-3.Placing the Unit Inside the Ceiling
Fig.
Fig.
1. Specifications
6-4.Installing the Drain Piping
Fig.
the drainage
1. Specifications
6-5.Checking the Drainage
ing to the outdoor unit are completed
Fig.
1. Specifications
6-6.Before Installing the Ceiling Panel
Ceiling Panel
1. Specifications
6-7.Installing the Ceiling Panel
6-8.When Removing the Ceiling Panel for Servicing
a Installing the air-intakeplenum
1. Specifications
1 Accessories
2 Installation
Fig.
1. Specifications
d Installing the ceiling panel
ceiling
6-10.Removing the Wall Fixture from the Unit
1. Specifications
trical wiring or conduits are
Wall Mounted Type K1 Type
b If Block, Brick, Concrete or Similar Type Wall
1. Specifications
6-12.Installing the Rear Panel on the Wall
a If Wooden Wall
6-14.Preparing the Indoor Side Tubing
1. Specifications
How to remove the grille
How to replace the grille
How to remove the cover plate
1. Specifications
6-15.Wiring Instructions
General Precautions on Wiring
6-17.Shaping the Tubing
1. Specifications
6-18.Installing the Drain Hose
wiring to the outdoor unit are completed
Fig.
1. Specifications
Ceiling Type T1 Type
6-19.Suspending the Indoor Unit
Fig.
1. Specifications
Fig.
Fig.
Fig.
1. Specifications
Fig.
Fig. Fig.
Fig.
1. Specifications
6-21.Installing the Drain Piping
6-20.Duct for Fresh Air
Fig.
1. Specifications
Low Silhouette Ducted Type F1 Type
Table
It is important that you use
1. Specifications
enough to support the weight
6-23.Suspending the Indoor Unit
their locking nuts face upward
1. Specifications
Fig. 6-24.Installing the Drain Piping
Tighten the hose clamps so
Be careful since the fan will start
1. Specifications
when you short the pin on the
6-25.Checking the Drainage
6-26.Increasing the Fan Speed
1. Specifications
How to read the diagram
HT : Using the booster cable
Fig.
1. Specifications
6-27.When Installing the Indoor Unit
Fig.
SUPPLEMENT ON DRAIN PIPING
1. Specifications
Checkpoint after installation
Symptom
How to Install Batteries
7. HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER
1. Specifications
7-1.Wireless Remote Controller Installation
7-4.Setting the Model Code
1. Specifications
7-2.Room Temperature Sensor Setting
Fig. 7-3.Address Switches
controller wires together
1. Specifications
7-5.Indicator Section Installation
1 7-6.Operating Controller Installation
Ceiling Type T1 Type
1. Specifications
7-7.Indicator Section Installation
7-8.Operating Controller Installation
Fig.
1. Specifications
7-9.Electrical Wiring
7-10.Test Run Switch
Table
1. Specifications
7-11.Misoperation Alarm Indicators
Alarm
wires. Doing so can result
1. Specifications
controller wires together
with the power supply
Fig.
1. Specifications
Fig.
Fig.
To avoid placing an
1. Specifications
7-13.Electrical Wiring
7-14.Test Run Switch
10. Temperature setting buttons
1. Specifications
7-15.Misoperation Alarm Indicators
8. Transmitter 9. Remote control sensor
correctly incorrect wiring
1. Specifications
7-16.Basic Wiring Diagram
Be sure to do the wiring
Wiring procedure
1. Specifications
7-17.Wiring System Diagram for Group Control
Group control using 2 signal receiving units
1Basic wiring diagram
1. Specifications
When installing multiple remote controllers
Setting method
Wall mounted Type K1 Type
1. Specifications
<CZ-RWSK1U> 7-19.Test Run Procedure
Wireless remote controller transmitter
Using the controller
1. Specifications
7-21-1.Changing the room temperature sensor
7-21-2.Using the remote controller
Outdoor unit control PCB
1. Specifications
7-22.Precautions
Indoor unit control PCB
Nos. 1, 2, 3 all OFF
1. Specifications
S-26PK1U6
Nos. 1, 2 OFF, No. 3 ON
Indoor unit
1. Specifications
7-24.Diagnosis Table
Cause
Fig.
1. Specifications
Flaring Procedure with a Flare Tool
Fig.
Fig.
1. Specifications
Caution Before Connecting Tubes Tightly
Cautions During Brazing
outlets when moving the unit
1. Specifications
Precautions for Packed Valve Operation
Never grasp the drain or refrigerant connecting
Fig.
1. Specifications
5. Finishing the Installation
4. Taping the Tubes
1. Leak Test
1. Specifications
Manifold gauge Fig. Vacuum pump
Fig.
designed for use with R410A
1. Specifications
2. Evacuation
Use a cylinder specifically
R410A
1. Specifications
3. Charging Additional Refrigerant
4.Finishing the Job
2-3Automatic Fan Speed Indoor Unit
Room Temperature Control
2. PROCESSES AND FUNCTIONS
2-2Cold Draft Prevention Heating Cycle
Fig. Chart Summary and Explanations
2-1Room Temperature Control
2. Processes and functions
A Cooling
Fig. Chart Summary and Explanations
2. Processes and functions B Heating
2. Processes and functions
2-2Cold Draft Prevention Heating Cycle
A Cooling
2-3Automatic Fan Speed Indoor Unit
B Heating
2. Processes and functions
Current release control
2-4Control Functions
2.Processes and functions
Discharge temperature release control
Current release value shift control
Freeze prevention low-temperaturerelease control
2. Processes and functions
Overcurrent protection control
Defrost control
2. Processes and functions
2-5Outdoor Unit Control PCB
1 Layout Diagram CR-CH4872R
2. Processes and functions
2-6Outdoor Unit Control PCB CR-CH4272R
2. Processes and functions
1 Explanation of Functions
Table 1. Method of System Address Setting
2. Processes and functions
Fig.
Page
3. ELECTRICAL DATA
Indoor Units
Outdoor Units
3. Electrical data
3-1Indoor Units
3. Electrical data
Wall Mounted Type : S-26PK1U6
3. Electrical data
Wall Mounted Type : S-26PK1U6
3. Electrical data
Ceiling Type : S-26PT1U6, S-36PT1U6, S-42PT1U6
3. Electrical data
Ceiling Type : S-26PT1U6, S-36PT1U6, S-42PT1U6
3. Electrical data
Low Silhouette Ducted Type : S-26PF1U6, S-36PF1U6
3. Electrical data
Low Silhouette Ducted Type : S-26PF1U6, S-36PF1U6
3. Electrical data
3-2Outdoor Units
3. Electrical data
U-26PE1U6
3. Electrical data
3-2Outdoor Units
3-2Outdoor Units
3. Electrical data
U-26PS1U6
3. Electrical data
3-2Outdoor Units
3-2Outdoor Units
3. Electrical data
U-36PE1U6
3. Electrical data
3-2Outdoor Units
3-2Outdoor Units
3. Electrical data
U-36PS1U6
3. Electrical data
3-2Outdoor Units
3-2Outdoor Units
3. Electrical data
U-42PE1U6
3. Electrical data
3-2Outdoor Units
3-2Outdoor Units
3. Electrical data
U-42PS1U6
3. Electrical data
3-2Outdoor Units
Page
4-3.Details of Alarm Messages
4. SERVICE PROCEDURES
4-1.Meaning of Alarm Messages
4-2.Symptoms and Parts to Inspect
Blinking
4. Service procedures
4-1.Meaning of Alarm Messages
Wired
remote
4. Service procedures
Wired
Wireless
Remarks
4. Service procedures
contents
4. Service procedures
4-2.Symptoms and Parts to Inspect
Alarm
Judgment condition
4. Service procedures
Alarm
contents
Judgment condition
4. Service procedures
Alarm
contents
Input power detection circuit trouble
4. Service procedures
4-3.Details of Alarm Messages
1 Alarm “P29”
4. Service procedures
2 Alarm “P26”
HIC PCB trouble
HIC-CH2672R
4. Service procedures
3 Alarm “E31”
HIC-CH4872R
4 Alarm P22
4. Service procedures
5 Alarms “F04,” “F06,” “F07,” “F08,” “F12”
4. Service procedures
Sensor installation
4. Service procedures
<Check procedure>
Sensor Temperature Correlation Table
1 Outdoor Air Temp. TO, Intake Temp. TS, Heat
4-4.Table of Thermistor Characteristics
4. Service procedures
Check Pin
5-1.Overview
5. OUTDOOR UNIT MAINTENANCE REMOTE CONTROL
Temperatures
Alarm History
Outdoor unit alarm history monitor
5. Outdoor unit maintenance remote control
System diagram
Temperature monitor
All units start/stop Fig. 1 <Operation>
5. Outdoor unit maintenance remote control
5-3.Normal Display Operations and Functions
Normal display functions
Item code
Display contents
3XX-YYR.C
XX= Main bus line outdoor system address 1 –
button
5. Outdoor unit maintenance remote control
5. Outdoor unit maintenance remote control
5. Outdoor unit maintenance remote control
Parameter
5. Outdoor unit maintenance remote control
List of Item Codes
Item code
Setting mode 2 <Operating procedure>
5. Outdoor unit maintenance remote control
5. Outdoor unit maintenance remote control
List of Item Codes
Refrigerant type
6-8.Examples of Wiring Diagrams
6-3.TestRun Procedure
6-5.TestRun Using the Remote Controller
6-6.Precautions
Fig.
6. TEST RUN 6-1.Preparing for Test Run
6. Test run
Fig.
6. Test run U1, K1, T1, F1 Type 6-2.Caution
6-3.TestRun Procedure
Fig.
6. Test run
6-5.Test Run Using the Remote Controller
6-6.Precautions
6-4.Items to Check Before the Test Run
Indoor unit
Wired remote
6. Test run
Cause
6. Test run 6-8.Examples of Wiring Diagrams
Basic wiring diagram
Fig.
Fig. 6-6b
Basic wiring diagram
Fig. 6-6a Wiring procedure
6. Test run
Setting the outdoor unit system addresses
6. Test run
Fig.
Main-subremote controller control
Remote controller setting mode
6. Test run