Reznor SCE Unit Installation Manual Uživatelský manuál stáhnout pdf (Strana 7)

Form RZ-NA I-SCE, Mfg #207697 Rev 7, Page 7

(1) Flanges on the furnace (heat exchanger) turn out as shown. (2) Shape duct connection as

shown -- "U" on top and bottom; "L" on sides. (3) Slide "U" channels over furnace top and

bottom anges making connection. (4) Form "U" channels to seal sides. Drill and lock with

sheetmetal screws.

FIGURE 7B - Install "U"

Channel on Sides of Duct

Connection

FIGURE 7A - Connecting

Ductwork to the Furnace

9. Venting and

Combustion Air

All separated combustion, power vented units MUST BE equipped with both combustion air

and exhaust piping to the outdoors. The unique concentric adapter box designed for use

with this heater allows for both combustion air and exhaust piping with only one horizontal

or vertical penetration hole in the building.

These instructions apply to installation and use of the concentric adapter and vent/combus-

tion air kit (Option CC2 or CC6) designed for use with all Reznor separated-combustion

products. The systems illustrated in this manual are the only venting/combustion air sys-

tems approved for these separated combustion units. Do not use this concentric adapter box

with any other products.

WARNING: Do not use an

existing venting system.

This heater requires

installation of the

combustion air/vent system

ordered with the unit (either

Option CC2 or Option

CC6).

Installation should be done by a qualied agency in accordance with these instructions. The

qualied service agency installing this separated-combustion system is responsible for the

installation.

Hazards of Chlorine - The presence of chlorine vapors in the combustion air of gas-red

heating equipment presents a potential corrosion hazard. Chlorine found usually in the form

of freon or degreaser vapors, when exposed to ame, will precipitate from the compound, 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 unit vent terminal and combustion air inlet with regard

to exhausters or prevailing wind directions. Remember, chlorine is heavier than air. This fact

should be kept in mind when determining installation location of these heaters and building

exhaust systems.

WARNING: SC Series separated combustion units are not designed or

approved for use in atmospheres containing ammable vapors or

atmospheres highly laden with chlorinated vapors. See Hazard Levels,

page 2.

CAUTION: Joint where supply air duct attaches to the furnace must

be sealed securely to prevent air leakage into drafthood or burner

rack area. Leakage can cause poor combustion, pilot problems, shorten

heat exchanger life, and cause poor performance. See Hazard levels,

page 2.

• Return Air Duct/Furnace Connection - All return air ducts should be attached and

sealed to return air anges to provide airtight connection.

• Return Air Duct/Grill Size - Make certain that return air ducting or grills have a free

area equal to the return duct size connection.

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