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36

18-CD19D6-32

Installer’s Guide

furnace reaches the maximum outlet temperature as
shown on the rating plate, the burners must shut off. If
they do not shut off after a reasonable time and over-
heating is evident, a faulty limit switch is probable and
the limit switch must be replaced. After checking the
operation of the limit control, be sure to remove the pa-
per or cardboard from the return air inlet. Refer to Ser-
vice Facts for additional instructions.

NOTE TO INSTALLER

Review the following warnings with the owner. Review
contents of USER’S INFORMATION MANUAL with the
owner.

AIRFLOW ADJUSTMENT

Check inlet and outlet air temperatures to make sure
they are within the ranges specified on the furnace rat-
ing nameplate. If the airflow needs to be increased or
decreased, see the wiring diagram for information on
changing the speed of the blower motor.

WARNING

!

Disconnect power to the unit before removing the
blower door.
Failure to follow this warning could result in property
damage, personal injury or death.

This unit is equipped with a blower door switch which
cuts power to the blower and gas valve causing shut-
down when the door is removed. Operation with the
door removed or ajar can permit the escape of danger-
ous fumes. All panels must be securely closed at all
times for safe operation of the furnace.

INDOOR BLOWER TIMING

Heating: 

The integrated furnace control module con-

trols the indoor blower. The blower start is fixed at 45
seconds after ignition. The FAN-OFF period is field se-
lectable by dip switches at 60, 100, 140, or 180 seconds.
The factory setting is 100 seconds (See wiring diagram).

Cooling: 

The fan delay off period is factory set at 0 sec-

onds. The option for 80 second delay off is field select-
able (See wiring diagram).

ROOM AIR THERMOSTAT
HEAT ANTICIPATOR ADJUSTMENT

Set the thermostat heat anticipator according to the
current flow measured, or the settings found in the
notes on the furnace wiring diagram (found in the SER-
VICE FACTS or inside the furnace casing).

INSTRUCTIONS TO THE OWNERS

In the event that electrical, fuel, or mechanical
failures occur, the owner should immediately
turn the gas supply off at the manual gas valve,
located in the burner compartment. Also turn off
electrical power to the furnace and contact the
service agency designated by your dealer.

To shut off.

For complete shut-down: Flip the switch on the main
gas valve to the “OFF” position, (See Figure 58 & 59).
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 receptacles.
Failure to follow this warning could result in property
damage.

Whenever your house is to be vacant, arrange to
have someone inspect your house for proper tem-
perature. This is very important during freezing
weather. If for any reason your furnace should
fail to operate damage could result, such as fro-
zen water pipes.

SEQUENCE OF OPERATION
Thermostat call for heat

R and W thermostat contacts close signaling the control
module to run its self-check routine. After the control
module has verified that the pressure switch contacts
are open and the limit switch(es) contacts are closed,
the draft blower will be energized.
As the induced draft blower comes up to speed, the
pressure switch contacts will close and the ignitor warm
up period will begin. The ignitor will heat for approxi-
mately 20 seconds, then the gas valve is energized to
permit gas flow to the burners. The flame sensor con-
firms that ignition has been achieved.
After the flame sensor confirms within a 4 second trial
period that ignition has been achieved, the delay to fan
ON period begins timing. After approximately 45 sec-
onds the indoor blower motor will be energized and con-
tinue to run during the heating cycle.
When the thermostat is satisfied,

 

R and W thermostat

contacts open, the gas valve will close, the flames will
extinguish, and the induced draft blower will be de-en-
ergized. The indoor blower motor will continue to run
for the fan off period (Field selectable at 60, 100, 140 or
180 seconds), then be de-energized by the control mod-
ule.

CONTROL AND SAFETY SWITCH ADJUSTMENTS
LIMIT SWITCH CHECK OUT

The limit switch is a safety device designed to close the
gas valve should the furnace become overheated. Since
proper operation of this switch is important to the
safety of the unit, it 

must be checked out on initial

start up by the installer

.

To check for proper operation of the limit switches, set
the thermostat to a temperature higher than the indi-
cated temperature to bring on the gas valve. Restrict
the airflow by blocking the return air (disconnecting the
indoor blower may trip the inducer limit). When the

Summary of Contents for *DC1B060A9361A

Page 1: ...This Document is customer property and is to remain with this unit Please return to service information pack upon completion of work Installer s Guide UX1C080A9601A UX1C100A9361A UX1C100A9481A UX1D10...

Page 2: ...be within nameplate mark ing e 100 of the furnace combustion air require ment must come from outside the structure WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below f...

Page 3: ...ation 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 equipment wiring plumbing and...

Page 4: ...tion source are located not less than 18 inches 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...

Page 5: ...18 CD19D6 32 5 Installer s Guide From Dwg 21C341884 Rev 6 UX C OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES...

Page 6: ...6 18 CD19D6 32 Installer s Guide DX C DOWNFLOW HORIZONTAL OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES From Dwg 21C341885 Rev 6...

Page 7: ...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 s...

Page 8: ...ed hobby 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 so...

Page 9: ...ent open ings one 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 s...

Page 10: ...sides or 2 one side and the bottom or 3 just 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 o...

Page 11: ...not supplied with unit TYPICAL UPFLOW RETURN AIR FILTER INSTALLA TIONS These furnaces require high velocity type air filters The optional filters may be located within the furnace blower compartment...

Page 12: ...ace cabinet side See Figures 13 14 16 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: ...side 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 14 15 17...

Page 14: ...LOW FILTER CLIP BRACKET INSTALLATION KIT09224 1 Determine the location to be used The furnace cabinet has dimples for location of the alternate furnace clips Side return only Pre drill clearance holes...

Page 15: ...the diameter rise and 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...

Page 16: ...BLE 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 D266...

Page 17: ...ED 15 60 130 NOT ALLOWED 25 70 130 NOTES First letter may be A or T 1 The INLET AIR of one pipe systems require the installation of a 90 elbow to prevent dust and debris from falling straight into the...

Page 18: ...aximum length limit shown in the table above See Note 7 below for exception The inlet pipe can be of a larger diameter but never smaller than the vent pipe 3 MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED...

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: ...d 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 codes POSSIBLE CONFIGURATIO...

Page 21: ...GRADE WHICHEVER IS GREATER 1 2 BAYAIR30AVENTA Sidewall Shield material to be a minimum of 24 gauge stainless or aluminized sheet metal Minimum dimensions are 12 x12 Shield must be fastened to both in...

Page 22: ...FIRST SUPPORT SHOULD BE AS CLOSE TO FURNACE CONNECTION AS POSSIBLE UPWARD PITCH 1 4 PER FOOT STRAPS OR OTHER SUITABLE SUPPORTS AT MAXIMUM OF 3 0 INTERVALS COMBUSTION AIR INLET USE ONLY APPROVED TERMIN...

Page 23: ...CAP COMBUSTION AIR ROOF FLASHING BOOT FIELD SUPPLIED COMBUSTION AIR VENT ELBOW FIELD SUPPLIED MAINTAIN 12 IN 18 IN FOR CANADA MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL MAXIMUM OF 24 IN A...

Page 24: ...e 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 installa...

Page 26: ...ctory supplied only with the following models UC120 DC120 UX120 UY120 UX100 UY100 UX808C960 and all DX DY models LABEL SAYS TOP STRAIGHT SIDE MUST BE ON BOTTOM FOR PROPER CONDENSATE DRAINAGE WHEN THE...

Page 27: ...rain 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 hole in the blower deck where the tube went...

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: ...AY 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 COOL THERMOSTAT 1 ST...

Page 31: ...P LEG AUTOMATIC GAS VALVE WITH MANUAL SHUTOFF MAIN MANUAL SHUTOFF VALVE GROUND UNION JOINT DRIP LEG THE DOWNFLOW VERTICAL MAY BE INSTALLED LEFT OR RIGHT SIDE GAS PIPING R GAS PIPING The upflow horizon...

Page 32: ...e by the heating value of the gas obtained from the utility company and compare to the nameplate rating This must not exceed the nameplate rating 7 Changes can be made by adjusting the manifold pressu...

Page 33: ...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...

Page 34: ...andard 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 with the listed high Altitude Conversion...

Page 35: ...stall 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 Twist Drill Size If Installe...

Page 36: ...d contact the service agency designated by your dealer To shut off For complete shut down Flip the switch on the main gas valve to the OFF position See Figure 58 59 Disconnect the electrical supply to...

Page 37: ...the furnace drain pan The pressure switch contacts will open and remain open not al lowing unit operation The unit will not operate un til the condensate drain has been cleared and the condensate flow...

Page 38: ...38 18 CD19D6 32 Installer s Guide...

Page 39: ...ed 3 Flashes Draft Pressure Error Possible problems a Venting problem b Pressure switch problem c Inducer problem 4 Flashes Open Temperature Limit Circuit 5 Flashes Flame sensed when no flame should b...

Page 40: ...rovement 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 Nu...

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