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RGM Form 421, Mfg No. 150492, Page 7
8. Coupling Two, Three, Four or Five Furnaces using Optional Coupling Kits
Refer to illustrations and follow the instructions below.
Figure 6C - Front View of Coupled Furnaces
Figure 6D - Top View of Coupled Furnaces (NOTE:
Access panel may be in top or bottom of ductwork.)
Instructions for Coupling Furnaces (Refer to Figures 6A,
6B, 6C and 6D)
1. Attach the tie plate to the first furnace using threaded socket assem-
blies. Tie plate must be positioned below the hanger angles. Secure
fasteners firmly.
2. Move the second furnace into position next to the first furnace. Tie
plate must be below the hanger angle. Secure the tie plate to the
hanger angle using the 3/8-16 bolts, the washers, and the spotweld
nuts on the tie plate.
3. Position the filler plates to furnaces as shown in Figure 6A. Using a
filler plate as a template, drill 1/8" diameter holes. Attach filler plates
using the sheet metal screws provided. Offset of filler plate allows
alignment with unit duct flanges. See Figure 6C.
4. Coupled units require access panels in the top or bottom of the
outlet duct for limit control service. See Figure 6D and Paragraph
11.
4"
1
2
3
6
7
5
7
Item Description
1 Socket Assembly
2 Bolt
3 Lockwasher
5 Spotweld Nut
6 Tie Plate
7 Hanger Angles
Figure 6A - Coupling Furnaces
Unit
1
Unit
2
Figure 6B - Installing Coupling Kit
Tie Plate
Coupling Kit, Option CR1 (P/N
57963), for Two Furnaces
Qty P/N Description
2 57964 Filler Plate
1 57965 Tie Plate
2 9557 Threaded Socket Assembly
2 5095 3/8-16 x 1-1/4" lg Hex
Head Bolts
2 5197 Split Ring Lock Washer
20 11813 #10 x 1/2" lg Sheetmetal
Screws
Additional Kits
:
3 Furnaces - Option CR2 (P/N 82654)
4 Furnaces - Option CR3 (P/N 82655)
5 Furnaces - Option CR4 (P/N 82656)
Size "A"
75-100 14-5/8" 371mm
125-140 17-3/8" 371mm
170 20-1/8" 371mm
200 22-7/8" 371mm
225 25-5/8" 371mm
250 28-3/8" 371mm
300 33-7/8" 860mm
350 39-3/8" 1000mm
400 44-7/8" 1140mm
A
A + 2"
(51mm)
Limit
Control
Limit
Control
Limit Control
Access panel for
limit control
service and
observation of
coupled unit
Discharge Duct