Gas Heat Data - Trane Foundation GCC180-300 Installation Operation & Maintenance

Installation
• Flue Exhaust clear of any obstruction
Table 3. Gas heater operating data
Heating Input Rate—Btu/h
Minimum Supply Gas Pressure Natural/LP
Manifold Gas Pressure
Combustion Blower Suction Pressure (1
Combustion Blower Suction Pressure (2
Minimum Flame Sensing Current
Normal Sensing Current Range
Flue Gas Temperature Rise
Above Ambient
Flue Gas Content - % CO
2
Minimum Supply Air Temperature Across Heat
Exchanger
(a)
A voltage reading across pens (V+) and (V-) is equatable to the flame sensing current. One volt equals one micro amp.
Table 4. Piping
Length of Pipe (ft)
15
30
45
60
75
Note: Capacity of Pipe of Different Diameters and Lengths in Cu. Ft. Per Hr. with Pressure Drop of 0.3" and Specific Gravity of 0.60.
Table 5. Specific gravity multipliers
Specific Gravity
Figure 28. Schematic diagram for field gas piping to units
1/8" NPT Test Plug
Gas Supply Line
Gas shuttoff (Field Supplied
outside unit cabinet.)
26
240,000
5.0/11.0
3.2-3.5
st
Stage)
-0.6 to -0.8
nd
Stage)
-1 to -1.3
(a)
1/2" Pipe 3/4" Pipe
76
52
43
38
77
0.50
0.55
0.60
0.65
Field supplied ground
Union

Gas Heat Data

320,000 350,000
5.0/11.0 4.5/11.0
3.2-3.5 3.2-3.5
-0.6 to -0.8 -0.6 to -0.8
-1 to -1.3 -1 to -1.3
5.0 Micro Amps DC
8.0 to 16 Micro Amps DC
300 to 450° F
7.5 to 8.5% (Natural Gas)
8.5 to 9.5% (LP)
40° F
Iron Pipe Size (IPS) Inches
1" Pipe
176 345
120 241
99 199
86 173
155 345
6" MIN
To Gas Train
Unit Access Hole
Drip Leg
380,000
5.5/11.0
3.2-3.5
-0.6 to -0.8
-1 to -1.3
1¼" Pipe 1½" Pipe
750 1220
535 850
435 700
380 610
545
Multipliers
1.10
1.04
1.00
0.96
RT-SVX51L-EN