Reznor B125 Installation Manual

WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause
property damage, injury or death. Read the
installation, operation, and maintenance
instructions thoroughly before installing or
servicing this equipment.

Horizontal/Vertical

Vent Outlet

INST ALLATION FORM I-F/B125-HV

Obsoletes RGM 434-HV125

®

Model F and B 125 unit heaters require field assembly of the vent outlet. Using 17, #10 x 1/2" sheetmetal
screws (16 in the plastic bag and the two screws used to hold the vent outlet pieces in place during shipping),
carefully follow the illustrated instructions on page 2 to assemble the vent outlet.

DANGER: Failure to provide proper venting could result in death, serious injury, and
/or property damage. The unit must be installed with a vent connection and proper vent
to the outside of the building. Follow the instructions on page 2 and the venting
instructions in the installation manual.

Applies to: Models F125 and B125

SEE PAGE 2

REQUIRES ASSEMBLY

INSTRUCTIONS ON

THIS SHEET.

OF FLUE OUTLET.

THIS HEATER

! CAUTION:

REFER TO

REFER TO

! CAUTION:

THIS HEATER

OF FLUE OUTLET.

THIS SHEET.

INSTRUCTIONS ON

REQUIRES ASSEMBLY

Form I-F/B125-HV, P/N 132794 (Rev 2), Page 1

ASSEMBLY INSTRUCTIONS FOR VENT OUTLET -- Models F 125 and B 125

These instructions and illustrations show the vent outlet being assembled in the horizontal position. To assemble the
vent outlet in the vertical position, follow the instructions reversing the positions of the flue collar assembly (Step 3)
and the cover (Step 4).

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.

The three pieces are: P/N
Flue Collar Support 131992
Flue Collar Assembly 132765
Cover 132764

2. Attach the Flue
Collar
Support

Flue Collar

Support

• 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.

3. Attach the Flue Collar Assembly

• Position the flue collar

assembly over the rear

Flue Collar

Assembly

opening.

• Fasten with four

sheetmetal screws.

Installation NOTE: For vertical vent outlet,
reverse the positions of the flue collar
assembly (Step 3) and the cover (Step 4).

Front Flange
MUST slide
under top of
heater

Flue Collar
Support

Flue Collar
Assembly

Slide the flange on the front of
the flue collar support under­neath the drafthood.

Drafthood

Sheetmetal Screws (5)

Sheetmetal Screws (4)

4. Attach the Cover

• Position the flat cover.

• Fasten on the top and

back with eight sheet­metal screws.

5. Installation of the vent outlet is complete. When the
outlet is in the horizontal position, it is recom­mended that a 12-18" piece of straight pipe be
connected to the flue pipe before installing an elbow.
Follow the instructions in the installation manual for
venting the heater.

Cover

[phone], www.RezSpec.com

©2014 Reznor, LLC. All rights reserved. Printed in the U.S.A.

Trademark Note: Reznor® is registered in the United States and other countries.

Form I-F/B125-HV, P/N 132794 (Rev 2), Page 2

0514 OG POD Form I-F/B125-HV (Version 0.1)

Sheetmetal
Screws (8)

Cover