Reznor SC 100, SC 125, SC 150, SC 175, SC 200, SC 225, SC 250, SC 300, SC 350, SC 400 High CFM Conversion Kit Instructions

Form CP-SC-CFM Conversion (Version .1)
Obsoletes CP-SC-CFM Conversion
High CFM Conversion Kit for Model SC, P/N 263309
Description/
Application
The purpose of this kit is to convert a Model SC unit for use in an application that
requires a higher CFM than the standard unit. Installation of this kit will allow for use of
the furnace with the CFM range listed in the table.
Model
and Size
SC 100
SC 125
SC 150
SC 175
SC 200
SC 225
SC 250
SC 300
SC 350
SC 400
Components of
Kit P/N 263309
High Air Throughput (CFM) with Kit, P/N 263309
MAXIMUM
MINIMUM
3700
4630
5555
6480
7405
8330
9255
11110
12900
14815
This kit includes:
980
1230
1480
1725
1975
2220
2465
2960
3455
3950
(1) Limit Control, 145°F, blue label, P/N 50418
(1) High CFM Conversion Label, P/N 263310
(1) Instruction Sheet, P/N 263311
WARNING: This conversion shall be done by a qualified service agency in accordance with the
manufacturer’s instructions and all applicable codes and requirements of the authority having
jurisdiction. If the information in these instructions is not followed exactly, a fire, explosion or
production of carbon monoxide may result causing property damage, personal injury or loss of life.
The qualified service agency performing this work assumes responsibility for the conversion of this
appliance to provide for higher CFM.
Conversion
Instructions
WARNING: The instructions in this sheet are designed to prepare a
Reznor duct furnace for increased air throughput conversion prior to
installation. If your duct furnace is installed, for your safety, turn off the
gas and the electric before servicing.
1.Fill in the Field Conversion Label - Complete the information.
(date)
(name & address of company making this conversion)
263309
2.Install the Limit Control Remove the control
compartment panel and
open the electrical box.
Locate the limit control.
Mark the wires and
remove the control. Using
the same screws, install
the limit control from this
conversion package and
reconnect the wires.
Limit
Control
Electrical Box in the Control Compartment
Form CP-SC-CFM Conversion, P/N 263311 R1, Page 1
Conversion
Instructions
(cont'd)
3.Remove the Heat Exchanger Baffles - Refer to the illustration and identify the
air baffles to be removed. Remove the screws from the support brackets and slide
the entire baffle assembly out of the heat exchanger. Reinstall the screws to plug
the holes.
Baffles (Remove
with the supports
as an assembly.)
Discharge Air End of
the Heat Exchanger
showing the Baffle
Assembly to be
Removed
Remove the support
bracket screws and slide
the baffle assembly out
of the heat exchanger.
Replace the screws to
plug the holes.
Conversion is complete for Model SC Size 100; skip to Step 5.
Entering Air End of
the Heat Exchanger
showing the Two Side
Finger Baffles to be
Removed
4. Sizes 125-400 only - Remove the Side Finger Baffles – Refer to the illustration
below showing the entering air side of the heat exchanger (baffles shown above
have already been removed). Identify the side finger baffles. Remove both side
baffles; each baffle is attached with two screws.
Remove the two screws
from each of the side finger
baffles. Remove both baffles.
Heat exchanger side finger
baffles being removed
(Sizes 125-400 only).
NOTE: Do NOT remove
these side finger baffles
on Model SC Size 100.
Conversion is complete for Sizes 125-400; continue to Step 5.
5. Select a location adjacent to the rating plate for the conversion label. Being sure
the surface is clean and dry, adhere the conversion label that was completed in
Step 1.
At startup, test for proper operation. Be sure to comply with the air throughputs in the
table on page 1.
www.ReznorHVAC.com; (800) 695-1901
Form CP-SC-CFM Conversion, P/N 263311, Page 2
©2014 Reznor LLC, All rights reserved.
Trademark Note: Reznor® is registered in at least the United States.
05/14 (Serial No. Date Code BNE) Form CP-SC-CFM Conversion (Version .1)