Trane IntelliPak 1 Installation, Operation And Maintenance Manual page 128

U U n n i i t t S S t t a a r r t t u u p p
Table 57. Chart A - ultra modulating service mode
setup parameters
Modulating Gas
Heat Actuator Low Fire
(Service Mode) (1%)
VDC Signal to
2.0 VDC
actuator
7.0" to
Inlet Pressure
14.0"
Main Gas Regulator
6.0"
Pressure
Load Line Pressure
Manifold Pressure
Note: In the service mode, adjust the % output until the Load
Line Pressure is 2.0", then verify/ adjust manifold
pressure.
Table 58. Chart B - high fire manifold pressure
Burner size
500 MBh
850 MBh
1000 MBh
Note: If the manifold pressure is not within the range shown on
the chart, then the maximum combustion fan speed (Fhi)
needs adjustment. Contact Large Commercial Technical
Support for assistance.
Figure 103. Gas Heat Manual Override screen -
modulating
128
Mid Fire
(38%)
(see High Fire
note) (100%)
5.0 VDC 10.0 VDC
7.0" to 7.0" to
14.0" 14.0"
6.0" 6.0"
2.0"
0.8" to 0.9" See chart B
High Fire Manifold Pressure
2.6" to 2.9"
1.6" to 1.9"
2.1" to 2.4"
Figure 104. Radio regulator — ultra modulating
Low fire bypass
Adjustment screw (under cap) for
manifold pressure adjustment during
low-fire and mid-fire pressure
adjustment only
Figure 105. Main gas regulator and inlet pressure tap
locations
Tap location for outlet
pressure from main gas regulator
Main gas regulator
Tap location for
load line pressure
Connection for
combustion air line
Tap location for Pilot gas
inlet pressure regulator
RT-SVX072A-EN