Reznor MAPS II Unit Installation Manual - Manual (Page 51)

Form I-MAPS II, P/N 206131 (Rev 13), Page 51
9.5 Electric Heat
Section - Model
RECA and Model
REDA
A system with an electric heat section is equipped to provide from 5 to 88 kw
of electric heat. Depending on the size, electric heat sections provide one or
three stages of heating operation. Call for heat and staging occur in response
to system controls (See Paragraph 8).
Electric Heat Capacity and Sequence of Operation
NOTE: 575V and 600V apply to Model RECA only.
Electric Heat Capacity Table
Size
240/480/600V 208V 230/460/575V
KW MBH KW MBH KW MBH
05S 5 17.1 3.8 12.8 4.6 15.7
10S 10 34.1 7.5 25.6 9.2 31.4
15S 15 51.2 11.3 38.4 13.8 47.1
20S 20 68.3 15.0 51.2 18.4 62.8
24S 24 82.0 18.0 61.5 22.1 75.4
15 15 51.2 11.3 38.4 13.8 47.1
20 20 68.3 15.0 51.2 18.4 62.8
25 25 85.4 18.8 64.0 23.0 78.5
30 30 102.5 22.5 76.8 27.6 94.3
35 35 119.5 26.3 89.6 32.2 110.0
39 39 133.2 29.3 99.9 35.9 122.5
60 60 204.9 45.0 153.7 55.2 188.5
75 75 256.1 56.3 192.1 69.0 235.6
88 88 300.5 66.0 225.4 81.0 276.5
Size
(kW)
Size Cabinet
Electric Heaters Sequence of Operation
Stage 1 Stage 2 Stage 3
5 05S A 5 - -
10 10S A 10 - -
15 15S A 15 - -
20 20S A 20 - -
24 24S A 24 - -
15 15 A or B 5 10 5 + 10
20 20 A or B 5 15 5 + 15
25 25 A or B 10 15 10 + 15
30 30 A or B 10 20 10 + 20
35 35 A or B 15 20 15 + 20
39 39 A, B, or C 15 24 15 + 24
50 50 B or C 15 15+15 15+15+10+10
60 60 B or C 10+10 20+20 10+10+20+20
75 75 B or C 20 20+15+20 20+15+20+20
88 88 B or C 24 20+24+20 20+24+20+24
FIGURE 40B - Dimensions of a Model JHUP-0250 Duct Furnace Curb Section
Duct Furnace
Burner Access Door
Limit
Control
Door
57-1/16” (1449mm) 4-1/4” (108mm)
3-27/32”
(98mm)
76-1/4” (1937mm)
78-3/16” (1981mm)
15-1/2”
(394mm)
37-1/2”
(953mm)
23-1/8” (587mm) 24-3/32” (612mm)
10-17/32”
(267mm)
Gas
Supply
Entrance
Flue Outlet
Combustion Air Inlet
Top View
See Paragraph 5.3
for instructions on
mounting the duct
furnace curb section
on the roof curb.