Reznor B Unit Installation Manual - Manual (Page 7)

Form I-F/B, P/N 98126 R21, Page 7
Sheetmetal Screw (8)
Flat Cover
Vent Outlet Instructions
for Sizes 250, 300 and
400
1. Remove the two center screws (one on each side) that are holding the three
flue outlet pieces in place during shipping. Use these screws and the 24 screws
(#10x1/2" sheetmetal screws) in the plastic bag.
FIGURE 3C -
Size 125, STEP 4
- Attach Cover
Sizes 250, 300
and 400
Flue Collar Support
Drafthood
Assembly
Sheetmetal Screw (9)
Flue Collar
Support
Sheetmetal Screws (7)
Flue Collar Assembly
3. Attach the Flue Collar Assembly - Sizes 250, 300,
400 (If vent outlet is to be vertical; see Installation
Note, page 5.)
•
Position the flue collar
assembly over the rear
opening
•
Fasten with seven
sheetmetal screws
Sizes 250, 300, and 400
Flue Collar Assembly
4. Attach the Cover -
Sizes 250, 300, 400
•
Position the flat cover
over the top opening
•
Fasten on the top
and back with ten
sheetmetal screws
Sizes 250, 300,
and 400
Flat Cover
Sheetmetal
Screw (10)
Cover
Size 125
Flat Cover
4. Attach the Cover - Size 125
•
Position the flat cover over
the top opening
•
Fasten on the top and back
with eight sheetmetal screws
FIGURE 4A -
Sizes 250, 300,
and 400,
STEP 2 -
Attach
Flue Collar
Support
FIGURE 4B - Sizes
250, 300, and 400,
STEP 3 - Attach
Flue Collar Assy
The vent outlet for Sizes 250, 300, and 400 always requires field assembly. The three
sheetmetal pieces and a parts bag including the instructions and screws are shipped
attached to the drafthood of the heater.
2. Attach the Flue Collar Support - Sizes 250,
300, 400
•
Position the support around
the hole in the drafthood with
the opening toward the back
of the heater
•
Fasten with nine sheetmetal
screws
FIGURE 4C -
Sizes 250, 300,
and 400, STEP 4
- Attach Cover
3.2.3 Installing Guard
Options - Model B
Guard options are designed to provide complete protection from the rotating drive
and/or blower components.
Option CD12 is designed for use with Model B Sizes 25-100 with standard direct drive
motor. This kit includes only the blower inlet guard.
Option CD10 is designed for use on Model B Sizes 50-400 with a belt driven motor and
includes both the belt guard and the blower inlet guard.