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CAUTION
(SEE SECTION 3.2: VERTICAL UPFLOW & HORIZONTAL LEFT)
Horizontal units must be configured for right hand air supply. Horizontal drain
pan must be located under indoor coil. Failure to use the drain pan can result in
property damage.
CAUTION
(SEE SECTION 14.2: INDOOR COIL - DRAIN PAN - DRAIN LINE)
In compliance with recognized codes, it is recommended that an auxiliary
drain pan be installed under all evaporator coils or units containing evaporator
coils that are located in any area of a structure where damage to the building
or building contents may occur as a result of an overflow of the coil drain pan
or a stoppage in the primary condensate drain piping. See accessory section
in this manual for secondary horizontal drain pan RXBM-.
NOTICE
When used on cooling applications, excessive sweating may occur when unit
is installed in an unconditioned space. This can result in property damage.
NOTICE
Improper installation, or installation not made in accordance with the
Underwriters Laboratory (UL) certification or these instructions, can result
in unsatisfactory operation and/or dangerous conditions and are not cov-
ered by the unit warranty.
NOTICE
In compliance with recognized codes, it is recommended that an auxiliary
drain pan be installed under all evaporator coils or units containing evapo-
rator coils that are located in any area of a structure where damage to the
building or building contents may occur as a result of an overflow of the
coil drain pan or a stoppage in the primary condensate drain piping. See
accessories section of these instructions for auxiliary horizontal overflow
pan information (model RXBM).
NOTICE
Use of this air-handler during construction is not recommended. If opera-
tion during construction is absolutely required, the following temporary
installation requirements must be followed:
Installation must comply with all Installation Instructions in this manual
including the following items:
• Properly sized power supply and circuit breaker/fuse
• Air-handler operating under thermostatic control;
• Return air duct sealed to the air-handler;
• Air filters must be in place;
• Correct air-flow setting for application
• Removing the coil and storing it in a clean safe place is highly recom-
mended until construction is completed and the outdoor unit is installed.
• Clean air-handler, duct work, and components including coil upon com-
pletion of the construction process and verify proper air-handler operat-
ing conditions according as stated in this instruction manual.
• NOTE: Electric strip heater elements tend to emit a burning odor for a few
days if dust has accumulated during construction. Heater elements are
easily damaged. Take great care when cleaning them. Low pressure com-
pressed air is recommended for cleaning elements.
2.0 GENERAL INFORMATION
2.1 IMPORTANT INFORMATION ABOUT EFFICIENCY AND INDOOR
2.1
AIR QUALITY
Central cooling and heating equipment is only as efficient as the duct system that car ries
the cooled or heated air. To maintain efficiency, comfort and good indoor air quality, it is
important to have the proper balance between the air being supplied to each room and
the air returning to the cooling and heating equipment.
Proper balance and sealing of the duct system improves the efficiency of the heating
and air conditioning system and improves the indoor air quality of the home by reducing
the amount of airborne pollutants that enter homes from spaces where the ductwork and
/ or equipment is located. The manufacturer and the U.S. Environmental Protection
Agency's Energy Star Program recommend that central duct systems be checked by a
qualified contractor for proper balance and sealing.
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