Reznor EEDU Unit Installation Manual - Manual (Page 4)

Form I-EEDU, Page 4
3.1 Uncrating and Inspection
This furnace was test operated and inspected at the factory prior to crating and was
in operating condition. If the furnace has incurred any damage in shipment, document
the damage with the transporting agency and contact an authorized Reznor Distribu-
tor. If you are an authorized Distributor, follow the FOB freight policy procedures as
published by Reznor for Reznor products.
3.0 Uncrating and
Preparation
2.0 Furnace
Location
(cont'd)
2.2 Combustion Air
Requirements
(cont'd)
Installation in a Confined Space
Do not install a unit in a confined space without providing wall openings leading to and
from the space. Provide openings near the floor and ceiling for ventilation and air for
combustion as shown in FIGURE 1, depending on the combustion air source as noted
in Items 1, 2, and 3 below the illustration.
Add total BTUH of all appliances in the confined space and divide by figures below for
square inch free area size of each (top and bottom) opening.
1. Air from inside the building -- openings 1 square inch free area per 1000 BTUH.
Never less than 100 square inches free area for each opening. See (1) in FIGURE 1.
2. Air from outside through duct -- openings 1 square inch free area per 2000 BTUH.
See (2) in FIGURE 1.
3. Air direct from outside -- openings 1 square inch free area per 4000 BTUH. See
(3) in FIGURE 1.
NOTE: For further details or other approved methods on supplying combustion air to a
confined space, see the National Fuel Gas Code ANSI Z223.1a (latest edition).
Hazards of Chlorine
The presence of chlorine vapors in the combustion air of gas-fired heating equipment
presents a potential corrosion hazard. Chlorine will, when exposed to flame, precipitate
from the compound, usually freon or degreaser vapors, and go into solution with any
condensation that is present in the heat exchanger or associated parts. The result is
hydrochloric acid which readily attacks all metals including 300 grade stainless steel.
Care should be taken to separate these vapors from the combustion process. This may
be done by wise location of the furnace with regard to exhausters or prevailing wind
direction. Remember, chlorine is heavier than air. This fact should be kept in mind when
determining installation locations of heating equipment and building exhaust systems.
Confined
Space
(1) (2) (3)
(3) (2) (1)
FIGURE 1 - Confined
Space: A space whose
volume is less than
50 cubic feet per 1000
BTUH of the installed
appliance input rating.
3.2 Preparing the
Furnace for
Installation
Important CAUTION: Remove the panel from the bottom rear of the furnace (See
Paragraph 10.2.2, page 27) and check the burner rack assembly. The burner rack
"drawer" should be setting level with each side on a support rail. Check to assure that
EXCESSIVE shipping vibration has not caused the burner rack assembly to "drop
off" the support rails into the bottom pan. If the burner rack assembly is positioned
properly, close the back panel.
If the burner rack has fallen, remove the screws holding the burner rack assembly and
pull out the burner rack "drawer". Re-assemble by sliding the burner rack "drawer"
into the heater, being sure that both sides are resting on the support rails. Re-attach
to the support brackets underneath the burners. Re-insert the burner rack screws
and close the back panel.
Check the rating plate for the gas specifications and electrical characteristics of the
furnace to be sure that they are compatible with the gas and electric supplies at the
installation site. Read this booklet and become familiar with the installation require-
ments of your particular furnace. If you do not have knowledge of local requirements,
check with the local gas company or any other local agencies who might have require-
ments concerning this installation. Before beginning, make preparations for necessary
supplies, tools, and manpower.
Check to see if there are any field-installed options that need to be assembled to the
furnace prior to installation.