Trane IntelliPak 1 Installation, Operation And Maintenance Manual page 44

I I n n s s t t a a l l l l a a t t i i o o n n
Table 18. LP gas – 2-stage and modulating gas heat settings (continued)
850 MBH Mod
1000 MBH 2-stg
1000 MBH Mod
Note: P0, P1, and P2 are fan speed settings in the Seimens controller. The default speeds have been preset at the factory and normally do not
need field adjustment.
(a) binary input for 2-stage
(b) 800MBH is Horizontal Discharge. MBH is listed on gas heat rating plate.
Figure 20. 2-stage and Mod gas train for 235 to 500
MBh
Ratio regulator
Manual shut-off valve
To combustion
air sensor
Main gas
solenoid
valves
Manual shut-off
vavle with 3/4" field
connection
44
Propane
0 1150 1150
n/a 2600 2600
0 1150 1150
High gas switch
Low gas
switch
10 3920 2.5
10 4430
10 4430
Figure 21. 2-stage and Mod gas train for 850 MBh
Ratio regulator
Manual shut-off valve
To combustion
air sensor
Main gas
solenoid
valves
Manual shut-off
vavle with 1" field
connection
Figure 22. 2-stage and Mod gas train for 1000 MBh
High gas switch
5
2 5
2 5
Low gas
switch
Ratio regulator
Low gas
switch
RT-SVX072A-EN
0.516
0.516
0.516
High gas switch
Manual shut-off valve
Main gas
solenoid
valves
To combustion
air sensor
Manual shut-off
vavle with 1" field
connection