Trane BAYHALT245 Assembly instructions

Models:
BAYHALT245
BAYHALT246
BAYHALT247
INSTALLER'S
GUIDE
IMPORTANT—This Document is customer property and is to remain with this unit.
Please return to service informationpack upon completion of work.
ALL phases of this installation must comply with
NATIONAL, STATE AND LOCAL CODES
18-CH12D27-2A-EN
HIGH ALTITUDE
CONVERSION KITS
for *UX2, *DX2, *UX-R, *DX-R, *UY-R, and *DY-R
Furnace Models
A. GENERAL
These high altitude conversion kits are to be used only with
furnace model numbers *UX2, *DX2, *UX-R, *DX-R, *UY-
R, and *DY-R series.
These instructions describe the conversion of these
furnaces for installation exceeding an altitude of 5000 feet
above sea level.
Due to the lower density of air at higher altitudes, there
would be insufficient negative pressure developed by
the induced draft blower to maintain normal operation.
Therefore, to com-pensate for the less dense air, pressure
switches must be changed to prevent nuisance lockouts
and/or cycling of the reduced draft blower on high speed.
Please note that with the reduced firing input rates required
for high altitude installa-tions, the induced draft blower
has ample capacity to provide sufficient combustion air
for proper and safe operation. Refer to the National Fuel
Gas Code, Section 8.1.2 and Appendix F, for information
regarding the correct procedure to derate the furnace's
input. The following instructions must be followed to convert
these furnaces for high altitude applications.
B. CONVERSION
The instructions below apply to *UX2, *DX2, *UX-R-V, *DX-
R-V, *UY-R9V-V and *DY-R9V-V furnace product lines.
1. Check for damage to kit contents, and check for all
items listed in the table.
2. Disconnect electrical supply to furnace, if installed.
3. Remove the wiring connections from the pressure
switch(es) in the furnace. Mark the wires if needed to
properly identify the replacement.
4. Remove the pressure switch(es) sample tube from the
switch assembly.
5. Remove the pressure switch from the unit.
6. Install the new pressure switch in the same location
and manner as the old pressure switch.
7. Connect the pressure switch sample tube and electrical
connections.
8. Reconnect the electrical supply to the unit.
C. CHECKOUT
Once the furnace has been correctly rated for the high
altitude installation, and the pressure switch has been
changed, the furnace installation shall be checked for
proper installation and performance. Refer to the unit
Installer's Guide for checkout procedure.
C. NOTES
1. The use of high altitude calibrated pressure switches in
sea level applications is not permitted.
2. The high altitude pressure switches are factory
calibrated and sealed. Field adjustment is not
permitted. If the factory seal is broken, the product
warranty may be voided.
KIT CONTENTS:
HIGH ALTITUDE CONVERSION KITS
Kit Model
No.
Furnace
Models Contents
BAYHALT245
*UX2B060A, *DX2B060A
*UY060R-V, *UX060R-V,
*DY060R-V, *DX060R-V
2 - Pressure
Switch
BAYHALT246
*UX2B080A, *DX2B080A
*UX2C100A, *DX2C100A
*UY080R-V, *UX080R-V,
*DY080R-V, *DX080R-V,
*UY100R-V, *UX100R-V,
*DY100R-V, *DX100R-V
2 - Pressure
Switch
BAYHALT247
*UX2D120A, *DXD120A
*UY120R-V, *UX120R-V,
*DY120R-V, *DX120R-V
2 - Pressure
Switch
* First letter may be "A" or "T"
* First letter may be "A" or "T"

Installer's Guide
VENT LENGTH TABLES FOR *UX/DX-R-V AND *UY/DY-R-V (ONLY) WITH HIGH ALTITUDE KIT
VENT LENGTH TABLE WITH BAYHALT KIT (HIGH ALTITUDE KIT)
TABLE MAXIMUM TOTAL EQUIVALENT LENGTH IN FEET
FOR VENT AND INLET AIR (SEE NOTES)
5,000 - 12,000 Feet 2 INCH PIPE 2.5 INCH PIPE 3 INCH PIPE
*UX2B060A, *DX2B060A
UX/UY/DX/DY060R936V
200 200 200
*UX2B080A, *DX2B080A
UX/UY/DX/DY080R942V
50 120 200
*UX2C100A, *DX2C100A
UX/UY/DX/DY100R948V
Not Allowed 60 200
*UX2D120A, *DX2D120A
UX/UY/DX/DY120R960V
Not Allowed Not Allowed 200
NOTES: * - First letter may be "A" or "T"
1. Minimum vent length for all models: 3' horizontal and vertical.
2. DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET,
(Except adapters at the top of the furnace).
3. MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED! THE LENGTH SHOWN IS NOT A COMBINED TO-
TAL, IT IS THE MAXIMUM LENGTH OF EACH (Vent or Inlet air pipes).
4. One SHORT radius 90° elbow is equivalent to 10' of 3" pipe and one LONG radius elbow is equivalent to 6' of
3" pipe. One 90° elbow is equivalent to 7½' of 2½" pipe or 5' of 2" pipe. Two 45° elbows equal one 90°elbow.
5. The termination tee or bend must be included in the total number of elbows. If the BAYVENT100A termination
kit is used, the equivalent length of pipe is 5 feet. BAYVENT200A/B equivalent length is 0 feet.
6. Pipe adapters are field supplied (except 120).
About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy efficient indoor environments for residential applications.
For more information, please visit www.trane.com or www.americanstandardair.com
The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are
committed to using environmentally conscious print practices.
© 2020
18-CH12D27-2A-EN 20 Jul 2020
Supersedes 18-CH12D27-2 (February 2010)