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Gas Furnace Design
If the 10th digit in the model number is a “G”, the rooftop
unit was furnished with a factory installed furnace (Example,
DPS010AHCG). The Rebel commercial rooftop units are
available with either the low, medium and high heat input
). This packaged gas heat
rooftop unit is designed for outdoor non-residential installations
only. Furnace to be supplied with natural gas or LP only.
The gas heat furnace design consists of a tubular heat
exchanger, in-shot burner manifold with gas valve, induced
combustion blower, gas heat DDC control module and all
operational safeties. The tubular heat exchanger can come
with the standard aluminized steel construction or the optional
stainless steel construction. The safety switches include a
high-limit temperature switch, an auxiliary high-limit switch,
a combustion blower proof of airflow, and the flame roll-out
switch (see
Gas Heating Capacity Data
Table 13: DPS 003-015 Gas Heating Capacities
Figure 28: Gas Heat Section
Figure 29: Field Gas Heat Connections
Data
Unit Size
003 - 006
007 - 015
Low Heat
Med Heat
High Heat
Low Heat
Med Heat
High Heat
Heating Input (MBh)
80
120
160
200
300
400
Heating Output (MBh)
64
96
128
160
240
320
Steady State Efficiency
80%
Number of Stages
2
Turndown
1
5:1
10:1
Maximum Temperature Rise
3
60/100
Gas Connection Size
1/2"
3/4"
Min/Max External Static Pressure
0.5"/2.5"
Gas Main Pressure
Natural Gas (in. wc)
7-14
7-14
7-14
7-14
7-14
7-14
Propane (in. wc)
12-14
12-14
12-14
12-14
12-14
12-14
Manifold Pressure Natural Gas (per gas valve)
Stage 1 (in. wc)
1 .2
1 .2
1 .2
1 .2
1 .2
1 .2
Stage 2 (in. wc)
3 .2
3 .2
3 .2
3 .2
3 .2
3 .2
Low fire
2
0 .4
0 .4
0 .4
0 .4
0 .4
0 .4
Manifold Pressure Propane
Stage 1 (in. wc)
2 .3
2 .3
2 .3
2 .3
2 .3
2 .3
Stage 2 (in. wc)
10 .0
10 .0
10 .0
10 .0
10 .0
10 .0
Low fire
2
N/A
N/A
N/A
N/A
N/A
N/A
NOTE:
1. Modulating heat only.
2. Modulating heat not available with propane.
3. Aluminized steel 60°, Stainless steel 100°
MANUAL GAS
SHUT-OFF
VALVE with ⅛" NPT
TEST PLUG
UNIT GAS SUPPLY
CONNECTION *
*FACTORY SUPPLIED GROMMET MUST BE UTLIZIED
FROM GAS
METER
Gas
Field
Piping
IM 1125-6 • REBEL ROOFTOPS 28
www.DaikinApplied.com
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DOT-ITB-21-8041-AC
FPID: 437300-3-7B-01
