Quick Start Manual
3
IMPORTANT SAFETY INFORMATION
Please read all information in this manual thoroughly 
and become familiar with the capabilities and use of this 
appliance before attempting to service or maintain this unit.
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 or property damage.
Improper servicing could result in dangerous 
operation, serious injury, death or property 
damage.
• Beforeservicing,disconnectallelectricalpower
to the air handler.
• Whenservicingcontrols,labelallwiresprior
to disconnecting. Reconnect wires correctly.
• Verifyproperoperationafterservicing.
 WARNING:
The information listed below must be followed 
during the installation, service, and operation 
of this unit. Unqualified individuals should 
not attempt to interpret these instructions or 
install this equipment. If you do not posses 
mechanical skills or tools, call your local 
dealer for assistance. Failure to follow safety 
recommendations could result in possible 
damage to the equipment, serious personal 
injury or death.
 WARNING:
PROPOSITION 65 WARNING: This product 
contains chemicals known to the state of 
California to cause cancer, birth defects or 
other reproductive harm.
• Tominimizeequipmentfailureorpersonalinjury,itis
essential that only qualified individuals install, service, or 
maintain this equipment. If you do not posses mechanical 
skills or tools, call your local dealer for assistance.
• Follow all precautions in the literature, on tags, and
on labels provided with the equipment. Read and 
thoroughly understand the instructions provided with 
the equipment prior to performing the installation and 
operational checkout of the equipment.
• Usecautionwhenhandlingthisapplianceorremoving
components. Personal injury can occur from sharp metal 
edges present in all sheet metal constructed equipment.
• Donotstoreanyofthefollowingon,orincontactwith,
the unit: Rags, brooms, vacuum cleaners, or other 
cleaning tools, spray or aerosol cans, soap powders, 
bleaches, waxes, cleaning compounds, plastics or 
plastic containers, paper bags or other paper products, 
gasoline, kerosene, cigarette lighter fluid, dry cleaning 
fluids, paint thinners, or other volatile fluids.
• Installationofequipmentmayrequirebrazingoperations.
Installer must comply with safety codes and wear 
appropriate safety equipment (safety glasses, work 
gloves, fire extinguisher, etc.) when performing brazing 
operations.
• Unlessotherwisenotedintheseinstructions,onlyfactory
authorized kits or accessories may be used with this 
product.
• Theinstallershouldbecomefamiliarwiththeunitswiring
diagram before making any electrical connections to the 
unit. See the unit wiring label or Figures 15 - 17 (pages 
25 - 27).
• Always reinstall the doors on the air handler after
servicing or cleaning/changing the filters. Do not operate 
the air handler without all doors and covers in place.
GENERAL INFORMATION
Requirements & Codes
• The installer must comply with all local codes and
regulations which govern the installation of this type 
of equipment. Local codes and regulations take 
precedence over any recommendations contained in 
these instructions. Consult local building codes for 
special installation requirements.
• Allelectricalwiringmustbecompletedinaccordance
with local, state and national codes and regulations 
and with the National Electric Code (ANSI/NFPA 70) 
or in Canada the Canadian Electric Code Part 1 CSA 
C.22.1.
• Install this unit only in a location and position as
specified on page 4. This unit is designed only for Indoor 
installations and should be located with consideration 
of minimizing the length of the supply and return ducts. 
See Tables 4 - 8 (pages 17 - 20) and the rating plate for 
proper circulating airflow data.
• This air handler may be used fortemporary heating
of buildings or structures under construction. See the 
guidelines listed on page 4.
About the Air Handler
This appliance has been tested for capacity and efficiency 
in accordance with AHRI Standards and will provide 
many years of safe and dependable comfort, providing 
it is properly installed and maintained. Abuse, improper 
use, and/or improper maintenance can shorten the life of 
the appliance and create unsafe hazards. Please read all 
instructions before installing the unit.










