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18-CD29D1-3

7

Installer’s Guide

UPFLO

W

FURNA

CE

CASED

COIL

SCREWS

(BOTH SIDES)

STANDOFFS

(BOTH SIDES)

STANDOFFS (4)

DRILL SCREWS (4)

FOR VERTICAL

INSTALLATIONS:

1

HORIZONTAL INSTALLATION

The coil and furnace must be fully supported when used
in the horizontal position. It is always recommended
that an auxiliary drain pan be installed under a horizon-
tally installed evaporator coil or 95% gas furnace. Con-
nect the auxiliary drain line to a separate drain line (no
trap is needed in this line).
Three brackets (with screws) are included with down-
flow furnaces for installation to stabilize and secure the
furnace and TXC cased coil in the 

horizontal posi-

tion

. See Figure 4.

IMPORTANT:
The 2/4TXC cased coil must be placed downstream of the
furnace.  In horizontal installations, the apex of the coil
may point either toward or away from the furnace.  See
the 2/4TXC coil Installer's Guide for more details.

The cased coil is secured to the furnace and both the
furnace 

and

 the cased coil must be properly supported.

The brackets mount using the rear screws on the coil
case and use the screws provided to secure the bracket
to the furnace. The remaining bracket is placed as close
to center as possible (horizontally) between the coil case
front and the furnace bottom channel (for downflow/
horizontal furnace). Use four of the screws provided to
secure the bracket. The upflow furnace, converted to
horizontal, aligns and attaches the TXC coil as in Fig-
ure 1. However, the coil requires additional support.

UPFLOW INSTALLATION

Standoffs and screws (See Figure 1) are included with
the cased coils for attachment to the furnace. There are
clearance alignment holes near the bottom of the coil
wrapper. Drill screws are used to engage the furnace
top flanges. The standoff is inserted into the cabinet
alignment hole. The drill screws are inserted through
the standoffs then screwed into the furnace flange.

The coil is always placed downstream of the furnace air-
flow.

DOWNFLOW INSTALLATIONS

WARNING

!

FIRE HAZARD
Do NOT install the furnace directly on carpeting, tile or
other combustible material other than wood flooring.
For vertical downflow application, subbase (BAYBASE-
205) must be used between the furnace and combus-
tible flooring. When the downflow furnace is installed
vertically with a cased coil, a subbase is not required.

Required floor opening:

SUBBASE CROSS SECTION

TABLE 1

CABINET

WIDTH

RETURN

DUCT WIDTH

FLOOR OPENING PLENUM OPENING

"A"

"B"

"C"

"D"

17-1/2"

16-1/4"

16-5/8"

20-1/8"

15-5/8"

19-3/8"

21"

19-3/4"

20-1/8"

20-1/8"

19-1/8"

19-3/8"

24-1/2"

23-1/4"

23-5/8"

20-1/8"

22-5/8"

19-3/8"

2

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FURNACE

FRONT

A (width)

B (depth)

C

D

3

CASED COIL CONNECTION

BRACKET FOR DOWNFLOW

FURNACE IN HORIZONTAL

DOWNFLOW ONLY

4

The furnace may be installed in an attic or crawl space
in the horizontal position by placing the furnace 

on the

left side

 (as viewed from the front in the vertical posi-

tion). The horizontal furnace installation in an attic
should be on a service platform large enough to allow
for proper clearances on all sides and service access to
the front of the furnace (See Figure 3 & Clearance
Table 1). Line contact is only permissible between lines
formed by intersections of the top and two sides of the
furnace casing and building joists, studs, or framing.

Summary of Contents for *DH1B040A9241A

Page 1: ...erty and is to remain with this unit Please return to service information pack upon completion of work Installer s Guide __First letter may be A or T 1 8 CD2 9 D1 3 UPFLOW UH1 UPFLOW HORIZONTAL A34162...

Page 2: ...horizontal pitch as required in the National Fuel Gas Code ANSI Z223 1 NFPA 54 or the CAN CGA B149 Installation Codes and these instructions Determine that there is no blockage or restriction leakage...

Page 3: ...quipment to approximate location If damage to contents is found report the damage immediately to the de livering agency Codes and local utility requirements governing the installation of gas fired equ...

Page 4: ...46 cm above the floor and the furnace must be located or protected to avoid physical damage from ve hicles IMPORTANT The furnace must be installed level The only allowable variation would be slightly...

Page 5: ...NTAL ALL DIMENSIONS ARE IN INCHES 1 UH1D120A9601 REQUIRES 3 DIAMETER VENT PIPE UH1C100A9481 UH1D100A9601 REQUIRES 2 1 2 OR 3 DIAMETER VENT PIPE 2 DIAMETER OF VENT PIPE MAY BE LIMITED TO 2 1 2 OR 3 ON...

Page 6: ...From Dwg C341885 Rev 7 DH1 OUTLINE DRAWING DOWNFLOW HORIZONTAL ALL DIMENSIONS ARE IN INCHES 12345 3617898 3618 8 36178 8 3617838 1234567689 74 123456 897 4 4 4 4 7 4 4 7 4 1234 6 897 4 4 4 49 7 49 4...

Page 7: ...e or other combustible material other than wood flooring For vertical downflow application subbase BAYBASE 205 must be used between the furnace and combus tible flooring When the downflow furnace is i...

Page 8: ...or craft rooms Furnaces installed near chemical storage areas Exposure to the following substances in the combustion air supply will also require OUTDOOR AIR for combus tion Permanent wave solutions...

Page 9: ...commencing within 12 inches of the top and one commencing within 12 inches of the bot tom of the enclosure The openings shall communi cate directly or by ducts with the outdoors or spaces crawl or at...

Page 10: ...the bottom All return air duct systems should provide for installa tion of return air filters 1 Determine the appropriate position to set the furnace in order to connect to the existing supply and ret...

Page 11: ...the cloths before you start the furnace RETURN AIR FILTERS Filter and filter rack are not supplied with unit TYPICAL UPFLOW RETURN AIR FILTER INSTALLA TIONS These furnaces require high velocity type...

Page 12: ...ace cabinet side See Figures 13 14 15 NOTE Remove the bottom front channel to install the filter rack in the 14 1 2 width cabinet furnaces Filter Rack Furnace Cabinet Side Filter Rack Retaining Screw...

Page 13: ...ide of the furnace Confirm that the upper retaining pin screw locks into the engagement hole in the blower deck and the lower pin screw rests against the side of the bottom panel See Figures 13 14 16...

Page 14: ...ter clip with the leaf spring mounts in the rear of the cabinet See Figure 21 a UNIT SIZE RETURN AIR BOTTOM SIDE 14 1 2 CUT ON LINE DO NOT CUT 17 1 2 DO NOT CUT DO NOT CUT 21 DO NOT CUT CUT ON LINE 24...

Page 15: ...d lateral of the existing venting system as well as quantity and type of bends c Use the appropriate tables in the latest edition of the National Fuel Gas Code ANSI Z223 1 CAN CGA B149 1 Installation...

Page 16: ...LE TEMPERATURE MARKING D2846 CPVC 41 212 ASTM D2846 F441 SCH 40 80 212 ASTM F441 F442 SDR SERIES 212 ASTM F442 ABS ASTM STANDARD PIPE TYPE ALLOWABLE TEMPERATURE MARKING D2661 SCH 40 DWV 180 ASTM D2661...

Page 17: ...MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET Except adapters at the top of the furnace If different inlet and vent pipe sizes are used the vent pipe must adhere to the ma...

Page 18: ...pt adapters at the top of the furnace If different inlet and vent pipe sizes are used the vent pipe must adhere to the maximum length limit shown in the table above See Note 7 below for exception The...

Page 19: ...y is fully open on a minimum of two sides beneath the floor Clearance in accordance with local installation codes and the requirements of the gas supplier and the manufacturer s Installation Instructi...

Page 20: ...he condition of a heated space HORIZONTAL VENTING THROUGH WALL These furnaces may be installed as direct vent as shipped or as nondirect vent Installation must conform to national state and local code...

Page 21: ...large enough to maintain pitch of vent and properly seal Use cement mortar seal on inside and outside of wall See Figure 31 VENTING THROUGH THE ROOF When penetrating roof with a 2 PVC vent pipe a 2 el...

Page 22: ...SUPPLIED COMBUSTION AIR VENT ELBOW FIELD SUPPLIED VENT 1 1 2 BAYAIR30AVENTA 3 PIPING 2 2 1 2 or 3 PIPING REDUCING COUPLING FIELD SUPPLIED IF NEEDED SEAL ALL WALL CAVITIES BAYVENT200B c CAUTION The ve...

Page 23: ...TICIPATED SNOW LEVEL MAXIMUM OF 24 IN ABOVE ROOF SUPPORT FIELD SUPPLIED VENT m 6 Min 40 Inch Upflow or Downflow Furnace Slope 1 4 per ft Slope 1 4 per ft All horizontal pipes must be supported at a ma...

Page 24: ...wall flue pipe and masonry chimney is to be used for another gas appliance venting area must be sufficient to vent that appliance and that appliance must be con nected to chimney with separate entry...

Page 25: ...detector with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of this subdivision can not be met at the time of completion of installat...

Page 26: ...low models all 120 000 BTU upflow models UH1C080A9601A and all downflow models LABEL SAYS TOP STRAIGHT SIDE MUST BE ON BOTTOM FOR PROPER CONDENSATE DRAINAGE WHEN THE FACTORY SUPPLIED OFF SET 2X3 REDUC...

Page 27: ...ced blower and reposi tion into the other drain tap of the inducer which is lo cated 90 clockwise around the inducer Move the cap from that drain tap to the unused drain tap On upflow units plug the h...

Page 28: ...NG A 1 STAGE HEATING THERMOSTAT NO COOLING Primary drain vent stack must terminate below secondary heat exchanger condensate drain outlet To drain opening If upflow furnace is installed over a finishe...

Page 29: ...xternal electrical source is utilized OUTDOOR UNIT NO TRANSFORMER SEE NOTE 6 From drawing B340388 Rv 2 SEE NOTE 8 FURNACE B C B C TO 115 V 1 PH 60 HZ POWER SUPPLY PER LOCAL CODES HUM SEE NOTE 5 EAC SE...

Page 30: ...E 4 ISOLATION RELAY SEE NOTE 4 B C B C B C From Dwg 21B341422 Rev 3 TWIN TWIN R1 R1 TWINNING CONNECTION DIAGRAM FOR TWINNING 1 STAGE FURNACES WITH SINGLE WIRE TWINNING FEATURE 1 STAGE HEAT 1 STAGE COO...

Page 31: ...P LEG AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF MAIN MANUAL SHUTOFF VALVE GROUND UNION JOINT DRIP LEG GAS PIPING The upflow horizontal furnace is shipped standard for left side installation of gas pipin...

Page 32: ...necessary For 1 Cu Ft Dial Gas Flow CFH Chart Flow Reading 2 For 1 2 Cu Ft Dial Gas Flow CFH Chart Flow Reading 4 For 5 Cu Ft Dial Gas Flow CFH 10X Chart Flow Reading 4 6 Multiply the final figure by...

Page 33: ...481A 3 5 W C 11 0 W C DH1D110A9601A 4 5 W C 11 0 W C 5 Adjust gas heat by removing the adjustment regulator cover screw a To increase outlet pressure turn the regulator adjust screw clockwise b To dec...

Page 34: ...Code ANSI Z223 1 NFPA 54 or National Standard of Canada Natural Gas and Propane Installation Code CSA 149 1 Installation of this furnace at altitudes above 2 000 ft 610m shall be made in accordance w...

Page 35: ...e sensor hot surface igniter or main burner orifices have required removal of the cover TABLE 20 Orifice Twist Drill Size If Installed At Sea Level ALTITUDE ABOVE SEA LEVEL and Orifice Required At Oth...

Page 36: ...ition See Figure 57 58 Disconnect the electrical supply to the unit CAUTION If this is done during the cold weather months provi sions must be taken to prevent freeze up of all water pipes and water r...

Page 37: ...ndensate drain is blocked either by debris improper draining or by freezing condensate the pressure switch will receive a signal warning of the accumulation of condensate in the heat exchanger assembl...

Page 38: ...38 18 CD29D1 3 Installer s Guide...

Page 39: ...s or Recycles exceeded 3 Flashes Draft Pressure Error Possible problems a Venting problem b Pressure seitch problem c Inducer problem 4 Flashes Open High Limit Device 5 Flashes Flame sensed when no fl...

Page 40: ...mprovement it reserves the right to change design and specifications without notice Trane 6200 Troup Highway Tyler TX 75707 For more information contact your local dealer distributor Literature Order...

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