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Section 1. Safety Information
SAFETY HAZARD! This information is intended for use
by individuals possessing adequate backgrounds of electrical and
mechanical experience. Any attempt to repair a central air condition-
ing product may result in personal injury and/or property damage.
The manufacturer or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability in connection
with its use.
LIVE ELECTRICAL COMPONENTS! During instal-
lation, testing, servicing, and troubleshooting of this product, it may
be necessary to work with live electrical components. Failure to fol-
low all electrical safety precautions when exposed to live electrical
components could result in death or serious injury.
CORROSION HAZARD! To prevent shortening its service
life, the air handler should not be used during the finishing phases
of construction. The low return air temperatures can lead to the
formation of condensate. Condensate in the presence of chlorides
and fluorides from paint, varnish, stains, adhesives, cleaning com-
pounds, and cement creates a corrosive condition which may cause
rapid deterioration of the cabinet and internal components.
Important: Due to the unique design of this unit, which
allows the electrical wiring to be routed within the insula-
tion, do not screw, cut, or otherwise puncture the unit
cabinet in any location other than the ones illustrated in
this Installer Guide or in an approved accessory’s In-
staller Guide.
Important: Under no conditions should metal strapping
be attached to the unit to be used as support mecha-
nisms for carrying or suspension purposes.
Table of Contents
Section 1. Safety Information
. ......................................................................... 2
Section 2. Unit Design. ........................................................................................ 3
Section 3. Unit Preparation. ............................................................................. 5
Section 4. Optional Cabinet Disassembly. ............................................... 6
Section 5. Place Unit at Location. ............................................................... 11
Section 6. Unit Location Considerations. ............................................... 12
Section 7. Setting the Unit - Vertical Installation. ................................ 17
Section 8. Setting the Unit - Horizontal Installation. ......................... 19
Section 9. Connecting the Duct work. ...................................................... 20
Section 10. Refrigerant Line. ......................................................................... 21
Section 11. Refrigerant Line Brazing. ....................................................... 22
Section 12. Condensate Drain Piping. ...................................................... 25
Section 13. Electrical - Low Voltage. .......................................................... 27
Section 14. Electrical - High Voltage. ......................................................... 37
Section 15. Unit Outline Drawing. ............................................................... 39
Section 16. Filters. ............................................................................................... 40
Section 17. Start Up. ........................................................................................... 40
Section 18. Sequence of Operation. .......................................................... 42
Section 19. Checkout Procedures. ............................................................. 44
Note: Representative illustrations only included in this
document. Most illustrations display the upflow configu-
ration.
SAFETY HAZARD! Sharp Edge Hazard. Be careful of sharp
edges on equipment or any cuts made on sheet metal while install-
ing or servicing. Personal injury may result.
HAZARDOUS VAPORS! Do not install an air handler
with a non-ducted return in the same closet, alcove, or utility
room as a fossil fuel device. Hazardous vapors can be distributed
throughout the conditioned space and equipment damage can
result.
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