Reznor B Unit Installation Manual User Manual
Page 21
Form I-F/B, P/N 98126 R21, Page 21
6.4.4 Polytube
Adapter - Options
CD6, CD8, and CD11
- applies to Model B
only
The polytube adapter option is designed to adapt this blower-type heater for use with
polytube ductwork. The use of polytubes for air distribution is common in greenhouse
applications and some industrial applications. A polytube distribution system delivers
warm air to a specific area, reducing the need for complete area heating. The polytube
adapter is available in three installation designs making it adaptable to many applica-
tions and building structures.
WARNINGS: This adapter is to be used only on blower units. At
no time should the free area in the polytube be less than the listed
minimum. Failure to comply with these warnings could result in
severe personal injury, death and/or property damage.
The polytube adapter option package does not include polytubing. Polytubing can be
obtained from a supply distributor such as MVT-USA Company, 150 Elizabeth Lane,
Unit 1, Genoa City, WI 53128 or from most local greenhouse supply distributors. Some
local code authorities require the polytube material to be a listed material. Consult code
authority having jurisdiction and the polytube supplier to determine the appropriate
polytube material and recommended methods of suspension.
Conversion Table
(Diameter to Area)
Diameter
of the Hole
Area of
the Hole
(inches)
(sq in)
2-1/2
4.91
2-1/4
3.98
2
3.14
1-7/8
2.76
1-1/2
1.76
1
0.785
FIGURE 22 - Optional
Polytube Adapter
Illustration shows Option CD8,
Polytube Adapter for Floor-
Mounted Heater. Options CD6 and
CD11 are for Suspended Heaters.
Size
CFM
at .25"
ESP
Polytube
Diameter
(inches)
Minimum Free
Area (square
Inches)
Suggested Hole Sizes and Locations
Holes
Length of Polytube
50 Ft
75 Ft
100 Ft
125 Ft
150 Ft
75
925
18
110
Number 37 pairs 75 pairs 75 pairs
Diameter
1-1/2"
1"
1"
Spacing
16"
12"
16"
100
1235
18
145
Number 50 pairs 50 pairs 100 pairs 94 pairs
Diameter
1-1/2"
1-1/2"
1"
1"
Spacing
12"
18"
12"
16"
125
1540
18
185
Number 40 pairs 60 pairs 60 pairs 125 pairs
Diameter
1-7/8"
1-1/2"
1-1/2"
1"
Spacing
15"
15"
20"
12"
130
1600
24
190
Number 40 pairs 60 pairs 60 pairs 125 pairs
Diameter
1-7/8"
1-1/2"
1-1/2"
1"
Spacing
15"
15"
20"
12"
165
2035
24
240
Number 50 pairs 50 pairs 75 pairs 75 pairs 75 pairs
Diameter
1-7/8"
1-7/8"
1-1/2"
1-1/2"
1-1/2"
Spacing
12"
18"
16"
20"
24"
200
2465
24
300
Number 42 pairs 42 pairs 60 pairs 60 pairs 100 pairs
Diameter
2-1/4"
2-1/4"
1-7/8"
1-7/8"
1-1/2"
Spacing
14"
21"
20"
25"
18"
250
3085
24
360
Number 40 pairs 60 pairs 60 pairs 60 pairs 60 pairs
Diameter
2-1/2"
2"
2"
2"
2"
Spacing
15"
15"
20"
25"
30"
300
3700
24
425
Number 75 pairs 75 pairs 75 pairs 75 pairs 75 pairs
Diameter
2"
2"
2"
2"
2"
Spacing
9"
12"
16"
20"
24"
400
4935
24
550
Number 60 pairs 60 pairs 60 pairs 100 pairs 100 pairs
Diameter
2-1/2"
2-1/2"
2-1/2"
1-7/8"
1-7/8"
Spacing
10"
15"
20"
15"
18"