Trane IntelliPak WEHE Series Installation, Operation And Maintenance Manual page 36

Installation
Table 7. Modulating gas heat settings
Heater Size (MBH) Gas Orifice
500
850
1000
Heater Size (MBH) Gas Orifice
500 #34 / #53
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 8. Gas heating capacity altitude correction factors
Sea Level
To 2000
Capacity
Multiplier
1.00
Note: Correction factors are per AGA Std. 221.30 - 1964, Part VI, 6.12. Local codes may supersede.
Table 9. Specific gravity multipliers
Specific Gravity Multiplier
0.50
0.55
0.60
0.65
Connecting the Gas Supply Line to the
Furnace Gas Train
Follow the steps below to complete the installation
between the supply gas line and the furnace. Refer to
Figure 17 - Figure 19 for the appropriate gas train
configuration.
1. Connect the supply gas piping using a "ground-joint"
type union to the furnace gas train and check for leaks.
2. Adjust the inlet supply pressure to the recommended
7" to 14" w.c. parameter for natural gas.
3. Ensure that the piping is adequately supported to
avoid gas train stress.
36
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)
7 - 10
#32 6 - 10
#29 5 - 10
Altitude (Ft.)
2001 2501
To 2500 To 3500 To 4500
.92 .88
1.10
1.04
1.00
0.96
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
3501 4501 5501
To 5500 To 6500
.84 .80
Figure 16. 1000 MBH - unit gas trains (natural gas)
Valve Actuator
Left (Coarse) Right (Fine)
Setting
2.3
1.3
0.9
Valve Actuator
Left (Coarse) Right (Fine)
Setting
6
3.2
1.9
6501
To 7500
.76 .72
Setting
-1
-1
0
Setting
1
1
0
RT-SVX35H-EN