h. Turn off all electrical power to the system.

i. Remove the manometer and flexible tubing. Re- move the barbed fitting and replace the plug or tighten the pressure test screw.

j. Turn on electrical power to the system and ener- gize valve.

k. Using a leak detection solution or soap suds, check for leaks at plug or pressure boss screw.

▲! WARNING

Replace and/ or tighten all plugs removed or loosened when adjusting gas pressure. Leak check the fittings before placing the furnace into regular service.

Failure to follow this warning could result in fire, ex- plosion, or property damage.

Installer’s Guide

Table 14 lists the main burner orifices used with the furnace. If a change of orifices is required to correct the furnace input rating. Refer to Table 17.

TABLE 15

FINAL MANIFOLD PRESSURE SETTINGS

FUEL

PRESSURE

NATURAL GAS

3.5" W.C.

 

 

LP GAS

11.0" W.C.

 

 

Y

NOTE:

The manifold pressure must be referenced to the burner box. The burner box pressure tap equalizes the gas valve pressure regulator. Manifold pressure is checked by installing a tee (field supplied) in the tub- ing, between the tee coming from the burner box tube and the gas valve, in addition to the regular gas valve pressure tap on the outlet side of the gas valve. See Figure 53.

▲! CAUTION

Replace manifold pressure tap threaded plug and leak check after checking/ adjusting manifold gas pressure.

18-CD19D6-32

33

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Trane UX1B080A9421A, UX1C100A9481A, UX1C080A9601A, UX1C100A9361A manual Final Manifold Pressure Settings, Fuel Pressure
Page 32 Page 34

UX1D100A9601A, DX1B060A9361A, UX1D120A9601A, DX1B080A9421A, DX1B040A9241A specifications

The Trane UX1B040A9241A, DX1D120A9601A, UX1D120A9601A, UX1B060A9241A, and DX1C100A9481A are part of Trane's innovative line of HVAC systems, designed to provide efficient heating and cooling for both residential and commercial applications. Each model is equipped with state-of-the-art features and technologies that prioritize energy efficiency, durable performance, and innovative climate control solutions.

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