Reznor CAUA Unit Installation Manual - Manual (Page 4)

Form I-CAUA, P/N 164771 R8, Page 4
Shipped-Separate
Accessories
3.0 Receiving,
Uncrating, and
Preparing for
Installation
This unit was test operated and inspected at the factory prior to crating and was in
operating condition. If the heater has incurred any damage in shipment, document the
damage with the transporting agency and contact an authorized Reznor ® Distributor.
If you are an authorized Distributor, follow the FOB freight policy procedures as pub-
lished by Reznor for Reznor ® brand products.
Check the rating plate for the gas specifications including altitude and the electrical
characteristics of the heater to be sure that they are compatible with the gas and elec-
tric supplies and the altitude of the installation site.
Read this booklet and become familiar with the installation requirements of your par-
ticular heater. If you do not have knowledge of local requirements, check with the gas
company or any other local agencies who might have requirements concerning this
installation.
Before beginning, make preparations for necessary supplies, tools, and manpower.
If any of these shipped-separate accessories listed here are part of the installation,
check to be sure the required parts are at the installation site.
• Cased Cooling Coil (Option C or Model ACU) - The optional cooling coil is a
cased coil designed for a Model CAUA heater. The coil is shipped separately for
installation in the discharge opening of the heater. The thermostatic expansion
valve kit for R410A refrigerant and the size of unit is shipped loose for field
installation. Verify the coil and valve kit(s) with the list in Form I-CAUA-CC shipped
in the literature envelope or with the cooling coil.
• Vibration Isolators (Option PC) - If vibration isolators are part of the installation,
the four pads are shipped separately and must be field attached to the bottom at
each corner of the unit.
• Concentric Adapter and Vent Terminal (Option CC) - If the heater is installed as
a separated-combustion system, a concentric adapter assembly is required. The
concentric adapter and parts are shipped in a separate carton. Be sure that the
shipped-separate carton is at the installation site. See Paragraph 6.2.1.
• Filter Cabinet (Option CW) - The return air filter cabinet is shipped separately
for field installation over the inlet air opening of the heater. The inlet air opening
location is determined by the application. A filter cabinet can be attached to the
rear, the left side, the right side, or the bottom of the unit. Follow the installation
instructions in Form I-CAUA-FC shipped with the cabinet.
• Mixing Cabinet (Option GA) - If the application includes bringing in outside supply
air, a mixing cabinet must be attached to the unit. The optional mixing cabinet is
shipped separately for field attachment to the rear of the unit. Check to be sure
that the mixing box is the damper configuration ordered. Follow the installation
instructions in Form I-CAUA-MB that is shipped with the mixing box.
• Inlet Base (Option AVA for Sizes 350 and 400) - If an optional inlet base is part
of the installation, follow the instructions in Form I-CAUA-IB shipped with the
inlet base to select the location. A Model CAUA heater ordered with an inlet base
mounts on the base and has a bottom inlet air opening.
• Discharge Plenum (Option CD for Sizes 350 and 400) - The discharge plenum
is shipped separately for installation over the discharge opening of the heater.
If the discharge plenum and a cased cooling coil are part of the installation, the
discharge plenum is attached to the cooling coil casing at the factory.
Refer to the instructions in Form I-CAUA-DP (or both Forms I-CAUA-DP and
I-CAUA-CC) shipped with the discharge plenum.
Also, shipped with the heater are the parts needed to install a heat section condensate
drain (needed if installing a cooling coil).
associated parts. The result is hydrochloric acid which readily attacks all metals includ-
ing 300 grade stainless steel.
Care should be taken to separate these vapors from the combustion process. This
may be done by installing a separated combustion system and/or wise location of the
furnace with regard to exhausters or prevailing wind direction. Chlorine is heavier than
air. This fact should be kept in mind when determining installation locations of heating
equipment and building exhaust systems.
2.0 Heater
Location
(cont'd)