Uncrating and preparation (cont'd), 2 preparing for installation (cont'd) – Reznor B Unit Installation Manual User Manual
Page 6

Form I-F/B, P/N 98126 R21, Page 6
Vent Outlet
Instructions for
Size 125
Front Flange
(Slide front flange under top
of heater; see FIGURE 3A.)
Size 125
Flue
Collar
Support
Sizes 25, 50, 75, 100, 165, and 200 - Vent is
factory assembled in the horizontal position.
Sizes 25, 50, 75, 100, 165, and 200 -
Change the position of the flue collar
assembly for a vertical vent outlet
FIGURE 2 - Vent Outlet
Positions - Sizes 25, 50,
75, 100, 165, 200
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 16 screws
(#10x1/2" sheetmetal screws) in the plastic bag.
2. Attach the Flue Collar Support - Size 125
•
Position the support with the opening
toward the back of the heater.
•
Slide the flange on the front of the flue
collar support
under the drafthood (top
of the heater).
•
Fasten with five sheetmetal screws.
Flue Collar Assembly
Sheetmetal Screw (4)
3. Attach the Flue Collar Assembly - Size 125
(If vent outlet is to be vertical; see Installation
Note, page 5.)
•
Position the flue collar assembly
over the rear opening
•
Fasten with four sheetmetal
screws.
FIGURE 3B - Size 125,
STEP 3 - Attach Flue
Collar Assembly
Size 125 Flue
Collar Assembly
Size 125
Flue Collar
Support
Slide the flange on the front
of the flue collar support
underneath the drafthood.
Drafthood
Sheetmetal
Screw (5)
3. Uncrating and
Preparation
(cont'd)
3.2 Preparing for
Installation
(cont'd)
3.2.2 Assembling Vent Outlet (cont'd)
Vent Outlet Instructions for Sizes 25, 50, 75, 100, 165 and 200
The heater in these sizes is shipped with the vent outlet in the horizontal position and
requires no further field preparation. However, if a vertical vent outlet connection is
needed, reverse the positions of the flat cover plate and the flue collar assembly. See
FIGURE 2.
A size 125 heater always requires field assembly of the vent outlet. The three sheet-
metal pieces and a parts bag including the instructions and screws are shipped attached
to the drafthood of the heater.
FIGURE 3A - Size 125,
STEP 2 - Attach Flue
Collar Support