Contents
R410A Models Indoor Units
Sanyo Commercial Solutions
Outdoor Units
Optional Controllers
…In a Room
For safe installation and trouble-free operation, you must
…In Moist or Uneven Locations
…In an Area with High Winds
Countermeasures
Amount 353 oz Amount 529 oz
Be sure to recharge the refrigerant only in liquid form
Care regarding tubing
Different tools required
Manifold gauge Vacuum pump
Single-outlet valve
Compressor specifications are different
Existing tubing cannot be used especially R22
Refrigerating machine oil differs R22
Contents
HOW to Process Tubing
Electrical Wiring 5-1. General Precautions on Wiring
AIR Purging
Test RUN 8-1. Preparing for Test Run
Accessories Supplied
Tools Required for Installation not supplied
Outdoor Unit Part name
Type of Copper Tube and Insulation Material
4-Way Air Discharge Semi-Concealed X-Type
For sealing recessed portion of power supply
1-Way Air Discharge Semi-Concealed
Concealed Duct
Ceiling-Mounted
Concealed Duct High-Static Pressure
Wall-Mounted
4-Way Air Discharge Semi-Concealed XM Type
H3 C
Tubing Length
11 Main Tubing Size After Distribution LB, LC
Tubing Size 10 Main Tubing Size LA
12 Outdoor Unit Tubing Connection Size a D
BTU/h 95.500 153.600
15 Refrigerant tubing Existing tubing can be used
Common solenoid valve kit
17 Refrigerant Charge Amount at Shipment for outdoor unit
System Limitations 18 System Limitations
Header joint system Indoor
Header joint system
Tube branching methods horizontal use
Model name Cooling capacity after distribution Remarks
Tubing size with thermal insulation
Suction Tube
Size Part B Part C Part D Part E Part F Part G Part H Inch
Discharge Tube Liquid Tube
21 Dimensions for connections of each part
Types and specifications
Precautions on Installation of Solenoid Valve Kit
Specifications
Optional Solenoid Valve Kit
Unit
Relay kit Front
Installation of Solenoid Valve Kit
Be done through liquid charging
R410A additional charging absolutely must
Example Use the same tools for R22 and for R410A
Main tubing Distribution joint tubing
Remark
Main tubing
Wall-Mounted Type
Ceiling-MountedType
Indoor Unit
Front view
Outdoor Unit
Without snow- proof ducting Without platform
Precautions When Installing in Heavy Snow Areas
Ceiling panel
Unit installation
Unit Ceiling panel
Air direction Front direction
Air direction
Placing the Unit Inside the Ceiling
Suspending the Indoor Unit
Installing the Drain Piping
On the indoor control board
Start when you short the pin
Be careful since the fan will
Removing the corner cover
Installing the Ceiling Panel
Attaching the air-intake grille
Wiring the Ceiling Panel
When Removing the Ceiling Panel for Servicing
Checking After Installation
Adjusting the Auto Flap
Special Remarks DC Fan Tap Change Procedure
Placing the Unit Inside the Ceiling
Suspending the Indoor Unit
Do not install an air bleeder as
Installing the Drain Piping
This may cause water to spray
From the drain pipe outlet
Before Installing the Ceiling Panel
How to Install the Ceiling Panel Main unit
Checking the Drainage
Checking the unit position
Wiring the Ceiling Panel
Installing the Ceiling Panel
Checking After Installation
How to Attach the Corner & Air-Intake Grille
When Removing the Ceiling Panel for Servicing
Adjusting the Auto Flap
23-5/8
22-3/64
Level. If it is not level, water
Confirm that the unit is
Leakage may occur
Be sure to use a level gauge
Installing the Drain Piping
3WAYECO-iUS.indd 2008/02/07
Wiring
Electrical Power Wiring Wiring connections
M5 ss40
Ss12 or 5/32 ss15/32 For fastening
Removing the side panel
Removing the intake grille
Air leakage
Installing the intake grille
Installing the side panel and intake grille
Others Check after installation
If a wireless remote controller is used
27/32 Indoor unit
Inspection access
Air outlet duct flange
Refrigerant tubing
It is important that you use extreme care
Enough to support the weight of the unit
Supporting the indoor unit inside
Ceiling. Ensure that the ceiling is strong
19-11/16, as this could result in water leaks. Fig
Section directly after the connection port can be raised a
Maximum of 19-11/16. Do not raise it any higher than
Be careful since the fan will start when you
How to read the diagram
Short the pin on the indoor control board
Increasing the Fan Speed
17-23/32
23-5/8 for checking and servicing the electrical system
31/32
Min -31/32 Inspection plug
Indoor Fan Performance How to Read the Diagram
Refrigerant tubing drain hose position
It is important that you use
Wall and ceiling side opening position
Extreme care in supporting
Indoor unit from the ceil
Approx 63/64 Ceiling Surface Washer Nut
Fixture Double nut Field supply
Shaping the Tubing
Duct for Fresh Air
Rear cover
Downward gradient Min /100
Check local electrical codes
How to carry out power supply wiring
Regulations before wir
Ing. Also, check any specified
If the Wall is Wooden
Installing the Rear Panel onto the Wall
Selecting and Making a Hole
If the Wall is Brick, Concrete or Similar
Removing the Grille to Install the Indoor Unit
Removing the grille
Attaching the grille
Do not supply power to the unit or operate
Installing the Drain Hose
Shaping the Tubing Right-rear tubing
Left or left-rear tubing
KHX2452
KHX0752 / 0952 / 1252
Transporting
Installing the Outdoor Unit
Positions where anchor bolts are fastened
Routing the Tubing
Remove the Brackets Used for Transport
Connect the Tubing
Prepare the Tubing
Refrigerant tube port
Tubing size mm Outer dia Thickness
Work method
Tightening torque for each cap
Outdoor unit Time delay fuse or Circuit capacity
General Precautions on Wiring
Inter-outdoor unit control wiring
Use shielded wiring
Power
Wiring System Diagram
Wiring Controller
For K, A, X, T, U and D Types
XM Type
For XM Type
Outdoor unit Indoor unit
How to connect wiring to the terminal For stranded wiring
Type
Important Note When Wiring for Common Type
Type
XM Type
Important Note When Wiring for XM Type
Flaring Procedure with a Flare Tool
Connecting the Refrigerant Tubing
Use of the Flaring Method
Deburring
Approximate
Tube diameter Tightening torque
Four tubes arranged together
Two tubes arranged together
Three tubes arranged together
Taping the Tubes
Finishing the Installation
Manifold gauge Vacuum pump
Air Purging with a Vacuum Pump for Test Run Preparation
Leak test
45 min. or more 90 min. or more
Evacuation
Finishing the job
Charging additional refrigerant
Use a cylinder designed for use with R410A
Test RUN
Unit with the unit
Test Run Procedure
Items to Check Before the Test Run
Address setting of main outdoor unit S007 Unit No. setting
Indoor unit setting S004 Rotary switch, red
Main Outdoor Unit PCB Setting
Automatic Address Setting from the Outdoor Unit
Auto Address Setting Basic wiring diagram Example
No main unit Settings
Outdoor main/sub
22-9
3 OFF
Automatic Address Setting no compressor operation
Automatic Address Setting from Outdoor Unit
Automatic Address Setting in Heating Mode
Automatic Address Setting* from the Remote Controller
Automatic Address Setting in Cooling Mode
Blink alternately
Display during automatic address setting
LED 2
Checking the indoor unit addresses
If 1 indoor unit is connected to 1 remote controller
Remote Controller Test Run Settings
LED
Possible cause of malfunction
Message
Alarm messages displayed on system controller
Way Air Discharge Semi-Concealed Type X, XM Types
Soot
Should the power fail while the unit is running
Tips for Energy Saving
Way air discharge semi-concealed type a
Type 1-WAY
100
Troubleshooting
Type standard static pressure
Concealed Duct High-Static Pressure Type U, D Types
Type high static pressure
101
102
On the wired remote control unit
103
CEILING-MOUNTED
104
Or soot
105
106
Tips for Energy Saving