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