Trane UX1B060A9361A manual Start UP and Adjustment, Reinstallation of the Burner BOX Cover

See Table 17 & 18 for help in selecting orifices if orifice change is required. Furnace input rate and tempera- ture rise should be checked again after changing ori- fices to confirm the proper rate for the altitude.

Installations above 4,000 feet may require a pressure switch change. If required, use the BAYHALT*** Kit (High Altitude Accessory Kit) listed in PRODUCT DATA.

TABLE 17

PART NUMBERS FOR REPLACEMENT ORIFICES

DRILL	PART	DRILL	PART
SIZE	NUMBER	SIZE	NUMBER
44	ORF00501	54	ORF00555
45	ORF00644	55	ORF00693
46	ORF00909	56	ORF00907
47	ORF00910	57	ORF00908
48	ORF01099	58	ORF01338
49	ORF00503	59	ORF01339
50	ORF00493

REINSTALLATION OF THE BURNER BOX COVER

Figure 57 shows the correct way to reinstall the burner box cover if adjustment or replacement of the flame sensor, hot surface igniter, or main burner orifices have required removal of the cover.

					TABLE 18
Orifice				ALTITUDE ABOVE SEA LEVEL
Twist Drill
Size If		and Orifice Required At Other Elevations
Installed
At Sea
Level	2000		3000		4000	5000	6000	7000	8000	9000	10000
42	42		43		43	43	44	44	45	46	47
43	44		44		44	45	45	46	47	47	48
44	45		45		45	46	47	47	48	48	50
45	46		47		47	47	48	48	49	49	50
46	47		47		47	48	48	49	49	50	51
47	48		48		49	49	49	50	50	51	52
54	54		55		55	55	55	55	56	56	56
55	55		55		55	56	56	56	56	56	57
56	56		56		57	57	57	58	59	59	60
57	58		59		59	60	60	61	62	63	63
58	59		60		60	61	62	62	63	63	64

From National Fuel Gas Code - Table F-4

▲! WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow the installation instructions for the venting system being placed into operation could re- sult in carbon monoxide poisoning or death.

START UP AND ADJUSTMENT

PRELIMINARY INSPECTIONS

With gas and electrical power “OFF”

1.Duct connections are properly sealed

2.Filters are in place

3.Venting is properly assembled

4.Blower door is in place

Flip the switch on main gas valve within the unit to the “OFF” position. Turn the external gas valve to “ON”. Purge the air from the gas lines. After purging, Check all gas connections for leaks with a soapy solution —

Installer’s Guide

DO NOT CHECK WITH AN OPEN FLAME. Allow 5 minutes for any gas that might have escaped to dissi- pate. LP Gas being heavier than air may require forced ventilation. Flip the switch on the gas valve in the unit to the “ON” position.

I	Outlet Pressure Boss	Regulator
		Adjustment
Inlet Pressure
Boss (opt.)	On/Off Switch
White-Rodgers 36G gas valve

O On/Off Switch

White-Rodgers 36F gas valve

LIGHTING INSTRUCTIONS

▲! WARNING

DO NOT attempt to manually light the burner.

Failure to follow this warning could result in property damage, personal injury or death.

Lighting instructions appear on each unit. Each instal- lation must be checked out at the time of initial start up to insure proper operation of all components. Check out should include putting the unit through one complete cycle as outlined below.

Turn on the main electrical supply and set the thermo- stat above the indicated temperature. The ignitor will automatically heat, then the gas valve is energized to permit the flow of gas to the burners. After ignition and flame is established, the flame control module monitors the flame and supplies power to the gas valve until the thermostat is satisfied.

18-CD19D6-32 35