IM 777-18 • SKYLINE OUTDOOR AIR HANDLER 46 www.DaikinApplied.com
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Ventilation and Flue Pipe Requirements
WARNING
Hot surface hazard.
Can cause severe equipment damage,
personal injury, or death. Allow burner assembly to cool
before servicing equipment.
WARNING
Units equipped with gas heating must not be operated in an atmosphere
contaminated with chemicals which will corrode the unit such as
hydrocarbons, clorine, cleaning solvents, refrigerants, swimming
pool exhaust, etc.
Exposure to these components may cause
severe damage to the gas furnace and result in improper or
dangerous operation. Operation of the gas furnace in such a
contaminated atmosphere constitues product abuse and will
void all warranty coverage by the manufacturer. Questions
regarding specific cantaminates should be referred to your
local gas utility.
Standard Efficiency Models
The Daikin outdoor air handling unit is equipped with an
outdoor air hood to supply adequate combustion air. The unit
also has a flue outlet assembly and requires no additional
chimney, flue pipe, Breidert cap, draft inducer, etc..
High Efficiency Models
All unit installations must be in accordance with the National
Fuel Gas Code ANSI Z223.1 (NFPA 54) in the United States
and Can/CGA-B149 Installation Code in Canada, and all other
applicable local codes and ordinances. These requirements
include but are not limited to:
• Furnace Location and clearances
•
Circulating airflow and ductwork
• Combustion air supply to the heating equipment
•
Venting of the products of combustion (flue gases)
• Gas supply, piping and connections
Condensate Drain Lines
WARNING
Failure to connect condensate drains can result in
accumulation of condensate during heater operation and
result in hazardous operation and can damage the heat
exchanger.
WARNING
Failure to connect and properly install candensate drains
can result in water flow into the building causing structural
damage, injury, and death.
WARNING
For outdoor installations, the condensate drain line must be
routed through a heated space. DO NOT DRAIN ON THE
ROOF. Failure to properly connect condensate drains can
result in significant amounts of ice buildup, causing structural
damage, injury, and death.
Where condensate drains are located outside a heated space
or in a space where temperatures may fall below freezing,
the drain line must be protected. Use a 2.5 to 5 watt per foot
(0.003 to 0.005 kW per meter) at 115 VAC, 40° F (4.4° C) self-
regulating, shielded and waterproof heat tape. Wrap the drain
trap and drain line with heat tape and secure with ties. Follow
the heat tape manufacturer’s installation recommendations.
Disposal of condensate is subject to local codes and
ordinances. In some locals the condensate drain system may
be connected to a sanitary drain within the building. Some
municipalities require that the acidic condensate produced be
neutralized before being discharged into the sanitary sewer. A
condensate neutralizer kit should be used. Refer to installation
instructions provided with the kit. Locate neutralizer where it
is readily accessible for inspection and maintenance. When
a drain is not readily available, a condensate pump might be
needed. Installer is responsible for providing the neutralization
kit and condensate pump.
