Reznor RA 140 Guide de dépannage télécharger pdf (Page 17)

Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 3, Page 17

Installing

Ducts

Inlet Air Duct

Discharge

Duct

Inlet Air Duct

Canadian installations require field installation of an inlet air duct (re-

turn air system) on a Model RAD heater. The blower-equipped heater has

an inlet air duct flange. Inlet duct dimensions (inside) should be:

RAD140 RAD235

Height 32-1/8” (816mm) 32-1/8” (816mm)

Width 21-3/4” (552mm) 31-1/8” (791mm)

Slip the ductwork over the flange and attach using 1/2” long sheet metal

screws.

Discharge Duct

A discharge duct may be attached to a Model RAD heater. To connect the

duct to the heater,

• Remove the louvers from the furnace.

• Field fabricate a duct transition as illustrated.

• Attach duct transition to the heater using 1/2” long sheet metal

screws

IMPORTANT: Never reduce the furnace opening size

abruptly. Always use a tapered transition like the one

illustrated.

3/4 (19mm)

18

(457mm

minimum)

3/4 (19mm)

16-1/4 (413mm)

RAD A Minimum B

140 30” (762mm) 15” (381mm)

235 40” (1016mm) 20” (508mm)

Model RAD 140 235

CFM (free air) 2000 3200

Air throw (9 ft 50 ft 65 ft

suspension) 15M 20M

CFM .25" ESP 1425 2140

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 51 52

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Reznor RA 140 Guide de dépannage Page 17