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Table 2. Vent Pipe Lengths

FURNACE

MODELS

(BTU)

FURNACE

INSTALLATION

SINGLE VENT PIPE LENGTH (FT.)

with 1 long radius elbow**

DUAL VENT PIPE LENGTH (ft.)

with 1 long radius elbow on each pipe**

OUTLET

2” Diameter

OUTLET

3” Diameter

INLET / OUTLET

2” Diameter 

INLET / OUTLET

3” Diameter

60,000

Upfl ow

90

90

90

90

Horizontal

50

90

50

90

Downfl ow

30

90

30

90

80,000

Upfl ow

90

90

90

90

Horizontal

30

90

30

90

Downfl ow

30

90

30

90

100,000

Upfl ow

60

90

60

90

Horizontal

30

90

30

90

Downfl ow

30

90

25

90

120,000

Upfl ow

N/A

90

N/A

90

Horizontal

N/A

90

N/A

90

Downfl ow

N/A

90

N/A

90

*NOTES:

1. Subtract 2.5 ft. for each additional 2 inch long radius elbow, 5 ft. for each additional 2 inch short radius elbow, 3.5 ft. for each additional 3 

inch long radius elbow, and 7 ft. for each additional 3 inch short radius elbow. Subtract 5 ft for each 2” tee and 8 ft for each 3” tee. Two 45 
degree elbows are equivalent to one 90 degree elbow.

2. This table applies for elevations from sea level to 2,000 ft. For higher elevations, decrease pipe lengths by 8% per 1,000 ft of altitude.

For 1- pipe installations, install vent piping as described in 
this section and provide air for combustion and ventilation 
according to pages 7 - 10. Table 2 contains the maximum 
length of vent and combustion air piping for either type 
of installation.

Category IV appliances operate with positive vent pressure 
and therefore require vent systems which are thoroughly 
sealed. They also produce liquid condensate, which is 
slightly acidic and can cause severe corrosion of ordinary 
venting materials. Furnace operation can be adversely 
affected by restrictive vent and combustion air piping.

The inducer assembly on this furnace can be rotated to 
vent the fl ue products out of the left or right side of the 
furnace. This increases the fl exibility of which direction 
the vent pipe can exit the furnace.

Vent Pipe Material

Vent and combustion air pipe and fi ttings must be one of 
the following materials in the list and must conform to the 
indicated ANSI/ASTM standards. Cement must conform 
to ASTM Standard D2564 for PVC and Standard D2235 
for ABS. PVC primer must meet standard ASTM F656. 
When joining PVC piping to ABS, use PVC solvent cement. 
(See procedure specifi ed in ASTM Standard D3138)

In Canada, all plastic vent pipes and fi ttings including 
any cement, cleaners, or primers must be certifi ed as a 
system to ULC S636. However this requirement does not 
apply to the fi nish fl anges or piping internal to the furnace.

Vent Pipe Length & Diameter

In order for the furnace to operate properly, the combustion 
air and vent piping must not be excessively restrictive.

• The venting system should be designed to have the 

minimum number of elbows or turns.

•  All horizontal runs must slope upwards from the furnace 

at 1/4 inch minimum per running foot of vent.

• Transition to the fi nal vent diameter should be done as 

close to the furnace outlet as practical.

•  Always use the same size or a larger pipe for combustion 

air that is used for the exhaust vent.

Table 2 indicates the maximum allowable pipe length for 
a furnace of known input rate, when installed with piping 
of selected diameter and number of elbows. To use the 
table, the furnace input rate, the centerline length and the 
number of elbows on each pipe must be known.

When estimating the length of vent runs, consideration 
must be made to the effect of elbows and other fi ttings. 
This is conveniently handled using the idea of “equivalent 
length”. This means the fi ttings are assigned a linear 
length that accounts for the pressure drop they will cause. 
For example: a 2” diameter, long radius elbow is worth 
the equivalent of 2.5 feet of linear run. A 90 degree tee 
is worth 7 ft.

The equivalent lengths of tees and various elbows are 
listed in Table 2. Measure the linear length of the vent run 

Materials

Standards

Schedule 40PVC .............................. D1785
PVC-DWV ..........................................D2665
SDR-21 & SDR-26 .............................D2241
ABS-DWV ..........................................D2661
Schedule 40 ABS ...............................F628
Foam/Cellular Core PVC ....................F891

Summary of Contents for *TC

Page 1: ...llow the gas supplier s instructions If you cannot reach your gas supplier call the fire department WARNING RISQUE D INCENDIE OU D EXPLOSION Le non respect des avertissements de s curit pourrait entra...

Page 2: ...R REQUIREMENTS 14 Plenums Air Ducts 14 Supply Air Connections 15 Upflow Horizontal Furnaces 15 Downflow Furnaces 15 Return Air Connections 15 Upflow Horizontal Furnaces 15 Side Return Installations 15...

Page 3: ...l Cooling Heat Pump CFM Variable Speed 36 Gas Information 37 Table 11 Gas Flow Rates 37 Table 12 Gas Pipe Capacities 37 Table 13 High Altitude Deration Chart for Propane Gas 38 Table 14 Natural Gas He...

Page 4: ...may be used for temporary heating of buildings or structures under construction See the guidelines listed on pages 5 This furnace is not approved for installation in mobile homes Installing this furn...

Page 5: ...uous return temperature must not be below 60 F 15 C Occasionally a temporary return temperature of 55 F 12 C is acceptable However operation with a return temperature below 55 F 12 C is not allowed He...

Page 6: ...hes Back 0 Inches Allow 24 in minimum clearance for servicing Recommended clearance is 36 in TOP FRONT UPFLOW APPLICATIONS HORIZONTAL APPLICATIONS VENT TOP FRONT DOWNFLOW APPLICATIONS SIDE TOP BOTTOM...

Page 7: ...rit ci dessus rouvrir les portes et les fen tres et remettre les ventilateurs d vacuation les registres de foyers et tout autre appareil fonctionnant au gaz leur tat de fonctionnement initial CARBON M...

Page 8: ...icted If the furnace is operated without adequate air for combustion the flame roll out switch will open turning off the gas supply to the burners NOTE This safety device is a manually reset switch DO...

Page 9: ...freely exchange with the outdoors Figure 2 Outdoor Air Using Vertical Ducts If combustion air is taken from outdoors through vertical ducts the openings and ducts must have a minimum free area of one...

Page 10: ...G Upon completion of the furnace installation carefully inspect the entire flue system both inside and outside the furnace to assure it is properly sealed Leaks in the flue system can result in seriou...

Page 11: ...aterial Vent and combustion air pipe and fittings must be one of the following materials in the list and must conform to the indicated ANSI ASTM standards Cement must conform to ASTM Standard D2564 fo...

Page 12: ...install a coupling 1 Slide the rubber coupling over the end of the pipe that is attached to the furnace and secure it with one of the hose clamps 2 Slide the other end of the rubber coupling onto the...

Page 13: ...gths noted in Table 2 page 11 For Canadian installations please refer to the Canadian Installation Code CAN CGA B149 1 or 2 and or local codes For extremely cold climates or for conditions of short fu...

Page 14: ...QUIREMENTS WARNING Do not allow combustion products to enter the circulating air supply Failure to prevent the circulation of combustion products into the living space can create potentially hazardous...

Page 15: ...rn air NOTE Do not use the back of the furnace for return air Side Return Installations To attach the return air duct to the left or right side of the furnace punchoutthefourknockouts Figure29 fromthe...

Page 16: ...ecifications Upflow Installation WARNING The furnace must not be installed directly on carpeting tile oranycombustiblematerialother than wood flooring Side Return Air Inlet TCseriesgasfurnacesareshipp...

Page 17: ...inducer assembly 2 See Figure 14 page 18 2 Remove the inducer assembly ground wire 3 from the blower deck 4 or door 3 Removefourscrews 5 securingtheinducerassembly 2 to the header box 6 4 Remove drain...

Page 18: ...have two pairs of switches One set is connected to the static tap on the inducer assembly and the other to the collector box Downflow TL furnaces require only one pair of switches to be connected to...

Page 19: ...r grommet should be installed in the 1 5 8 hole prior to running the gas pipe into the cabinet No sealants are required The 3 4 rubber grommet is used if venting out the left side of the cabinet and t...

Page 20: ...eral rules In some cases the lowest point in the vent system is where it connects to the inducer Options 6 8 In this case one drain at this location is sufficient If the vent exits the furnace horizon...

Page 21: ...comply with the latest edition of the National Fuel Gas Code ANSI Z223 1 or CAN CGA B149 1 or 2 Installation Codes IMPORTANT NOTES Some local regulations require the installation of a manual main shu...

Page 22: ...des fuites de gaz Pour la v rification de tous les joints utiliser plut t une solution savonneusecommercialefabriqu esp cifiquement pur la d tection des fuites de gaz Un incendie ou une explosion peut...

Page 23: ...Shut Off Valve to be 4 to 5 feet above floor NOTE B Inducer assembly omitted for clarity of pipe installation Figure 22 Typical Gas Connections 6 4 2 UPFLOW MODELS DOWNFLOW MODELS 1 See Note B See Not...

Page 24: ...to LP Propane gas must be performed by qualified service personnel using a factory supplied conversion kit Failure to use the properconversionkitcancausefire explosion propertydamage carbonmonoxidepo...

Page 25: ...be controleed by a 24 VAC thermostat The thermostat s wiring must comply with the current provisions of the NEC ANSI NFPA 70 and with applicable local codes having jurisdiction NORDYNE no longer supp...

Page 26: ...it s Y C terminals Single Stage AC Two Stage Thermostat This option uses the full two stage heating capability of the furnace with a single stage outdoor unit See Figure 22 Connect the thermostat s W1...

Page 27: ...7 2 If using a separate humidistat connect the DHUM R terminals on the humidistat to the DHUM R terminals on the motor control board In this option the DHUM output of the humidistat must be set to be...

Page 28: ...s until all of the checks in the previous steps have been completed 1 Set the thermostat to the lowest setting 2 Turn off all electrical power to the furnace 3 Follow the Operating Instructions on the...

Page 29: ...lowers should continue to run when the limit switch opens 1 Check the blower door for secure mounting and that there is power to the furnace 2 Block the return airflow to the furnace by installing a c...

Page 30: ...tinues to run the fan for a period of 60 seconds Fan Mode When the thermostat energizes the G terminal for continuous fan without calling for heat or cooling the indoor fan is energized on the selecte...

Page 31: ...gas control switch to the OFF position 5 Disconnect the wires from the gas valve igniter flame sensor and flame rollout switch CAUTION To prevent damage to the unit or internal components it is recomm...

Page 32: ...alified service technician to identify and repair the problem If the furnace still doesn t operate check the Flame Roll out Switches Figure 41 and reset if necessary If the furnace operates when the F...

Page 33: ...s 1 5 8 T stat 7 8 18 1 2 Front Brace LEFT SIDE RIGHT SIDE Electric 7 8 25 1 2 22 1 2 Gas 1 5 8 Vent pipe 3 Cond 1 1 16 B 19 FLANGES TOP VIEW 3 7 1 2 Flue C BOTTOM VIEW Electric 7 8 Vent pipe 3 Cond 1...

Page 34: ...5 0 0 1 0 1 525 58 1 450 61 1 375 64 1 300 68 1 225 72 1 150 76 1 075 82 1 000 88 1 0 1 0 1 620 54 1 540 57 1 465 60 1 390 63 1 315 67 1 240 71 1 165 76 1 090 81 0 1 1 0 1 695 52 1 620 54 1 545 57 1 4...

Page 35: ...345 52 1 345 65 1 0 0 1 460 48 1 460 60 1 0 1 1 575 45 1 575 56 1 1 0 1 690 42 1 690 52 1 1 1 1 805 39 1 805 49 D CABINET Switch Settings for Heat 0 OFF 1 ON TC TL 120D VD Input BTU 120 000 1 2 3 4 CF...

Page 36: ...7 8 LOW HIGH 0 0 0 0 705 1 025 2 5 TON 0 0 0 1 750 1 090 3 TON 0 0 1 0 795 1 155 0 0 1 1 840 1 220 0 1 0 0 885 1 285 3 5 TON 0 1 0 1 930 1 350 0 1 1 0 975 1 415 4 TON 0 1 1 1 1 020 1 480 1 0 0 0 1 065...

Page 37: ...ER REVOLUTION OF GAS METER 1 5 10 10 360 1 800 3 600 12 300 1 500 3 000 14 257 1 286 2 571 16 225 1 125 2 250 18 200 1 000 2 000 20 180 900 1 800 22 164 818 1 636 24 150 750 1 500 26 138 692 1 385 28...

Page 38: ...56 56 56 56 ORIFICE SIZE 4 2 9 0 4 2 9 0 4 2 9 0 4 2 9 0 MANIFOLD PRESSURE 8 000 to 10 000 FT 56 56 56 56 ORIFICE SIZE 4 2 8 5 4 2 8 5 4 2 8 5 4 2 8 5 MANIFOLD PRESSURE LOCAL HEATING VALUES FOR NATUR...

Page 39: ...PRESSURE 9 000 to 9 999 FT 48 48 48 48 ORIFICE SIZE 1 7 2 8 1 7 2 8 1 7 2 8 1 7 2 8 MANIFOLD PRESSURE Table 16 High Altitude Deration Chart for Natural Gas Low heating Value NATURAL GAS with LOW HEAT...

Page 40: ..._IN H_OUT L2 OUT L2 IN L1 IN L1 OUT Y1_OUT Y Y2_OUT W_OUT C EXPANSION PORT R RED GREEN NOT FOR FIELD USE CONNECTION TO FURNACE CONTROL BOARD CONNECTION TO IQ THERMOSTAT IF APPLICABLE MOTOR WIRING HARN...

Page 41: ...REEN BROWN BROWN YELLOW VIOLET VIOLET VIOLET ORANGE ORANGE ORANGE VENT LIMIT ON SELECT MODELS BLACK 120V WHITE NEUTRAL GROUND 710916 CONDENSATE ON SELECT MODELS Refer to the Installation Instructions...

Page 42: ...END 0409 LOW VOLTAGE HIGH VOLTAGE BLUE BLUE BLUE BLUE BLACK BLACK 120V WHITE BLACK BLACK BLACK BLACK BLACK BLACK WHITE WHITE NEUTRAL BLACK WHITE WHITE RED RED GREEN GROUND GREEN BROWN BROWN YELLOW VIO...

Page 43: ...AL GROUND CONDENSATE ON SELECT MODELS BLACK VIOLET For 80 and 90 2 Stage Variable Speed Upflow Furnaces WIRING DIAGRAM 7109180 FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE Refer to the Installation In...

Page 44: ...t Flash Off Low Flame Sensor Signal Flame Present Diagnostic Description FAULT CONDITIONS Diagnostic Description Yellow LED Continuous Flash On Alternating Flash Motor Fault On Off 0409 FLAME ROLL OUT...

Page 45: ...ance 6 inches 15cm for appliances 10 000 Btuh 3kW 6 inches 15cm for appliances 10 000 Btuh 3kW 4 ft 1 2m below or to side of opening 1 ft 300mm above opening 12 inches 30cm for appliances 10 000 Btuh...

Page 46: ...5 ft Intervals Upward Pitch 1 4 per foot Flue Pipe First support placed as close to furnace connection as possible Wall Normal Snow Level COMBUSTION AIR 90 Elbow both ends Seal Caulk Around Pipes at B...

Page 47: ...o length to resemble illustration NOTES Header box drain tubing is routed thru the blower deck and side of cabinet Header box drain tubing is routed thru the blower deck and side of cabinet Drain Line...

Page 48: ...TION AIR FLUE PIPE AIR FLOW 1 2 3 4 5 6 7 8 Rubber Grommet COMBUSTION AIR See VIEW C for drain line positions See VIEW C for drain line positions See VIEW D for drain line positions Plug Plug See VIEW...

Page 49: ...W E for drain line positions PVC TEE Reducer 1 2 x 1 2 Hose Barb 1 All drain lines must be trapped with J Trap or field supplied loop 2 Drain line traps may be positioned inside or outside the cabinet...

Page 50: ...Switches Inducer Motor Control Box Inducer Limit Switch Main Air Limit Switch AIR AIR FLOW FLOW 1 2 3 4 5 6 7 8 Burner Assembly Flame Sensor Roll Out Switch Finish Flange Blower Assembly behind blowe...

Page 51: ...51...

Page 52: ...NAME CITY STATE INSTALLATION ADDRESS CITY STATE UNIT MODEL UNIT SERIAL Minimum clearances per Table 1 page 6 YES NO Has the owner s information been reviewed with the home owner YES NO Has the literat...

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