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• This air handler is certified for installation in
residential and light commercial applications
and approved for the following configurations:
−
Vertical: Upflow with bottom or side (left or
right side) return
−
Vertical: Downflow with bottom or side (left
or right side) return
−
Horizontal (Upflow with bottom return)
• All models are designed for indoor installation
only.
• These instructions are intended as a general
guide only and do not supersede national or
local codes. Compliance with all local, state, or
national codes pertaining to this type of
equipment should be determined prior to
installation.
• Read this entire manual, as well as the
instructions supplied in separate equipment,
before starting installation.
• It is recommended that a trained and qualified
professional who has attended a Rinnai
installation training class complete your
installation.
• Installation of the air handler, field wiring, warm
air ducts, etc. must conform to the requirements
of the Canadian Electrical Code CSA 22.1,
National Electrical Code, ANSI/NFPA No. 70
(latest edition) in the United States, and any
state laws, and local ordinances (including
plumbing or wastewater codes). Local
authorities having jurisdiction should be
consulted before installation begins. Such
applicable regulations or requirements take
precedence over the general instructions in this
manual.
• Install the conditioned air plenum, ducts and air
filters (not provided) in accordance with NFPA
90B Standard for the Installation of Warm Air
Heating and Air-Conditioning Systems (latest
edition). The blower section is provided with
flanges for the connection of the plenum and
ducts. Air filters must be listed as Class 2
furnace air filters. The blower section is shipped
from the factory completely assembled.
• For ease in installation, it is best to make any
necessary evaporator coil configuration
changes before connecting the air handler to
the evaporator coil.
Canadian Air Handler Installation and Operation Manual
• Do not remove the cabinet knockouts until it
has been determined which knockouts need
to be removed for the installation.
• Select the final installation position that best
suits the site conditions. Consider required
clearances, space, and routing requirements
for refrigerant line, condensate disposal,
filters, ductwork, wiring, and accessibility for
service. Refer to the rating plate for specific
information.
•
When the unit is installed in a humid space
and used in cooling applications, excessive
sweating may occur on outside of unit. To
prevent excessive sweating wrap unit with
1 in. (25 mm) fiberglass insulation. All
openings should be sealed to prevent air
leakage that could cause condensate to form
inside the cabinet.
•
Electrical wires should be sealed on the
inside where they exit the conduit opening.
Sealant is required to prevent air leakage and
condensate from forming inside the blower,
control box, and on the electrical controls.
•
Glycol is permitted in installations with the
I-Series boiler up to 50% concentration. Refer
to the I-Series Condensing Boiler Installation
and Operation Manual for approved glycol
manufacturers.
•
The air handler and its complementing
cooling coil must be installed in such a way
as to allow free access to the air handler/
control compartment.
IMPORTANT
The Clean Air Act of 1990 bans the
intentional venting of refrigerant (CFC's and
HFC's) as of July 1, 1992. Approved
methods of reclaiming must be followed.
Fines and/or incarceration may be levied for
non-compliance.
WARNING
• Do not install this air handler if it is
damaged.
• Do not install this air handler if any part
or all of the unit has been under water.
Explosion Hazard:
• Keep flammable materials and vapors,
such as gasoline, away from this unit.
• Failure to follow these instructions can
result in death, explosion or fire.
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