2
TABLE OF CONTENTS
IMPORTANT SAFETY INFORMATION .............................. 2
GENERAL INFORMATION ................................................. 3
Before You Install this Unit ............................................... 3
Locating the Air Conditioner ............................................. 3
Minimum Clearance Requirements .................................. 4
Air Duct System ............................................................... 4
AIR CONDITIONER INSTALLATION ................................. 5
Unpacking the Unit ........................................................... 5
Installing Return & Supply Air Collars (Optional) ............. 5
Supply Duct .................................................................. 5
Return Duct .................................................................. 5
Locating & Installing the Return Air Assembly ................. 5
Connecting the Return & Supply Air Flexible Ducts ......... 5
Locating & Installing the Supply Damper(s) ..................... 6
Condensate Drainage ...................................................... 6
ELECTRICAL CONNECTIONS .......................................... 6
Pre-Electrical Checklist .................................................... 6
Line Voltage ..................................................................... 6
Grounding ........................................................................ 7
Overcurrent Protection ..................................................... 7
Thermostat / Low Voltage Connections ........................... 7
Cooling Only Thermostat .............................................. 7
Heat / Cool Thermostat ................................................ 7
Blower Speed ................................................................... 8
START UP & ADJUSTMENTS ........................................... 8
Pre-Start Checklist ........................................................... 8
Start-Up Procedure .......................................................... 8
System Cooling ............................................................ 8
System Heating ............................................................ 8
AIR CONDITIONER MAINTENANCE ................................. 9
REFRIGERANT CHARGING .............................................. 9
Charging the Unit ............................................................. 9
Safety switches ................................................................ 9
FIGURES & TABLES .......................................................... 10
Figure 9. Unit Dimensions ............................................ 10
Table 2. Physical Data ................................................. 10
Wiring Diagrams .............................................................. 12
Figure 10. Wiring Diagram (1.5, 2, & 2.5 Ton Models) . 12
Figure 11. Wiring Diagram (3, 3.5, 4, & 5 Ton Models) 13
INSTALLATION CHECKLIST ............................................. 16
REPLACEMENT PARTS .................................................... 16
IMPORTANT SAFETY INFORMATION
Please read all instructions before servicing this equipment.
Pay attention to all safety warnings and any other special
notes highlighted in the manual. Safety markings are used
frequently throughout this manual to designate a degree or
level of seriousness and should not be ignored.
WARNING
indicates a potentially hazardous situation that if not avoided,
could result in personal injury or death.
CAUTION
indicates a
potentially hazardous situation that if not avoided, may result
in minor or moderate injury or property damage.
WARNING:
ELECTRICAL SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death or property damage.
Improper servicing could result in dangerous
operation, serious injury, death or property
damage.
• Before servicing, disconnect all electrical power
to the indoor blower.
• When servicing controls, label all wires prior
to disconnecting. Reconnect wires correctly.
• Verify proper operation after servicing.
WARNING:
These units are fully charged with R-410A
refrigerant and ready for installation. When
a system is installed according to these
instructions, no refrigerant charging is required.
If repairs make it necessary for evacuation and
charging, it should only be attempted by qualified,
trained personnel thoroughly familiar with this
equipment. Some local codes require licensed
installation service personnel to service this type
of equipment. Under no circumstances should
the equipment owner attempt to install and/or
service this equipment. Failure to comply with
this warning could result in equipment damage,
personal injury, or death.
WARNING:
Do not place combustible material on or against
the unit cabinet. Do not place combustible
materials, including gasoline and any other
flammable vapors and liquids, in the vicinity of
the unit.
