Trane IntelliPak SAHL Series Installation, Operation And Maintenance Manual page 59

Table 18. Modulating Gas Heat Settings
Heater Size (MBH) Gas Orifice
500
850
1000
Heater Size (MBH) Gas Orifice
500
850
1000
Note: Valve actuator settings are approximate and may require "fine tuning" to properly set. Right (fine) settings given are in notches from the "zero"
midpoint location on sight gage.
Table 19. Gas Heating Capacity Altitude Correction Factors
Sea Level - 2000
Capacity
1.00
Multiplier
Note: Correction factors are per AGA Std. 221.30 - 1964, Part VI, 6.12. Local codes may supersede.
Notes:
1. If more than one unit is served by the same main gas supply, consider the total gas input (cubic feet/hr.) and the total
2. Obtain the Specific Gravity and BTU/Cu.Ft. from the gas company.
3. The following example demonstrates the considerations necessary when determining the actual pipe size.
Example: A 40' pipe run is needed to connect a unit with a 500 MBH furnace to a natural gas supply having a rating of 1,000 BTU/Cu.Ft.
and a specific gravity of 0.60
Cu.Ft/Hour = Furnace MBH Input
4.
Figure 24. Unit Gas Trains (Natural Gas) 235 and 350 MBH
RT-SVX36G-EN
Full Modulation
Air Damper
Actuator Voltage
Range (VDC)
#21 7 - 10
#H 6 - 10
#N 5 - 10
Full Modulation
Air Damper
Actuator Voltage
Range (VDC)
#34 / #53 7 - 10
#32 6 - 10
#29 5 - 10
2001 - 2500 2501 - 3500
.92 .88
length when determining the appropriate gas pipe size.
Gas BTU/Cu.Ft. X Multiplier (Table
Cu.Ft/Hour = 500
Table 16 indicates that a 1-1/4" pipe is required.
Natural Gas
Partial Modulation
Air Damper
Actuator Voltage
Range (VDC)
7 - 9.7
6 - 8.7
5 - 8.7
LP
Partial Modulation
Air Damper
Actuator Voltage
Range (VDC)
7 - 9.7
6 - 8.7
5 - 8.7
Altitude (Ft.)
3501 - 4500
.84
17)
Valve Actuator
Left (Coarse)
Setting
2.3
1.3
0.9
Valve Actuator
Left (Coarse)
Setting
6
3.2
1.9
4501 - 5500 5501 - 6500
.80 .76
Installation
Right (Fine)
Setting
-1
-1
0
Right (Fine)
Setting
1
1
0
6501 - 7500
.72
59