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TABLE OF CONTENTS
SAFETY INSTRUCTIONS............................................................5
READ ALL INSTRUCTIONS BEFORE USE ...................................................5
Safety Messages ..........................................................................................5
Notes for Flammable Refrigerant..................................................................6
DELIVERED PARTS ..................................................................20
GENERAL INFORMATION .......................................................22
Model information ......................................................................................22
Parts and Dimensions .................................................................................23
Control Parts ...............................................................................................27
Control Panel...............................................................................................29
Typical Installation Example ........................................................................30
Cycle Diagram.............................................................................................31
Wiring Diagram ...........................................................................................32
Conditions to be considered when installing the outdoor unit....................36
Minimum Operation Space .........................................................................36
INSTALLATION OF OUTDOOR UNIT.......................................36
Safety Zone.................................................................................................37
Installation at Seaside .................................................................................39
Seasonal wind and cautions in winter.........................................................40
Transporting the Unit ..................................................................................41
Foundation for Installation...........................................................................43
INSTALLATION OF INDOOR UNIT ..........................................44
Conditions where Indoor Unit is Installed ...................................................44
ELECTRICAL WIRING ..............................................................47
General considerations and warnings .........................................................47
WATER PIPING ........................................................................58
Water Piping and Water Circuit Connection................................................58
How to install downward water piping .......................................................60
Water pump Capacity .................................................................................62
Pressure Drop .............................................................................................62
Performance curve......................................................................................63
Water Quality ..............................................................................................64
Frost protection by antifreeze ............................................................64
Frost protection by antifreeze valve ...........................................................65
Water Volume and Expansion Vessel Pressure ..........................................67
ACCESSORIES INSTALLATION ...............................................68
Before Installation .......................................................................................71
Thermostat..................................................................................................71
2nd Circuit...................................................................................................75
3rd Party Boiler ...........................................................................................78
3rd Party Controller .....................................................................................79
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