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25

 CAUTION:

To avoid electric shock, personal 
injury, or death, turn off the power at 
the disconnect or the main service 
panel before making any electrical 
connections.

ELECTRICAL WIRING

Electrical connections must be made in ac-
cordance with all applicable local codes and 
ordinances, and with the current revision of the 
National Electric Code (ANSI/NFPA 70).

For Canadian installations electrical connections 
and grounding must be done in accordance 
with the current Canadian Electrical Code (CSA 
C22.1 Part 1) and/or local codes.  If any of the 
original wire as supplied with the furnace must be 
replaced, it must be replaced with wire having a 
minimum  temperature rating of 105°C. Refer to 
the furnace nameplate and Table 10 for electrical 
requirements.

Line Voltage Wiring

The line voltage (115 volt) to the furnace must 
be supplied from a dedicated branch circuit 
containing the correct fuse or circuit breaker for 
the furnace. See Table 10.  An electrical switch 
should be readily accessible from and within 
sight of the furnace.  (See the Wiring Diagram 
label in the furnace and Figure 21.)

The furnace cabinet must have an uninterrupted, 
unbroken ground to minimize injury should an 
electrical fault condition occur. The controls used 
in this furnace require an earth ground to operate 
properly. Acceptable methods for grounding are 
electrical wire or conduit approved for electrical 
ground service. Do not use gas piping as an 
electrical ground.

NOTE:  Proper line voltage polarity must be 
maintained in order for the control system 
to operate correctly. Verify that the incoming 
neutral line is connected to the white wire and 
the incoming “hot” line is connected to the 
black wire in the junction box. These furnaces 
will not operate unless polarity and ground 
are properly connected. See Figure 21.

 CAUTION:

Label all wires prior to disconnection 
when servicing controls. Wiring errors 
can cause improper and dangerous 
operation.  Verify proper operation 
after servicing.

NOTE: 

The following procedure describes 

how to connect the furnace for a two-stage 
application.

Low Voltage Wiring

Furnace is factory confi gured to operate on low 
and high fi re – two stage mode confi gurations. 
The second stage will function based on the 
program settings in the thermostat controller. 
The furnace integrated control board consists of 
two boards – main and add-on boards. The two 
boards are pre-wired with the furnace interface 
board. The IQ thermostat controller requires 
wiring to the interface board in the fi eld (see 
Figures 22 and 25).

IMPORTANT NOTE: The use of shielded cable 
is required for the connection to the thermo-
stat controller. This wire is fi eld  supplied. 
Ground the shielded cable at the furnace end 
only on the grounding lug on the interface 
board bracket.

Table 8. Natural and LP Gas Orifi ce Sizes 

for Elevations between

zero and 4999 ft. Above Sea Level

Table 9. Natural and LP gas Orifi ce Sizes 

for Elevations between 5000 and 10,000 ft. 

Above Sea Level

Furnace High Fire Rating

Orifi ce Drill Size

Plate Input (Btu/h)

Nat.

LP

60,000

49

56

80,000

45

55

100,000

45

55

120,000

45

55

Furnace High Fire Rating

Orifi ce Drill Size

Plate Input (Btu/h)

Nat.

LP

60,000

49

57

80,000

45

56

100,000

45

56

120,000

46

56

Summary of Contents for TE Series 95

Page 1: ...or maintenance can cause injury or property damage Refer to this manual for assistance For additional information consult a qualified installer service agency or the gas supplier FOR YOUR SAFETY Do n...

Page 2: ...ort 15 Location of Outdoor Terminations 18 Horizontal Venting 18 Vertical Venting 19 Vent Freezing Protection 19 Concentric Vent Termination 20 Drainage of Condensate From Furnace 20 Gas Supply and Pi...

Page 3: ...s A B Combustion Air Vent 3 See Fig 15 for sizes 1 1 2 x 3 1 2 Dia Opening for Gas Connection 3 4 3 4 3 4 22 1 2 Exhaust Vent Combustion Air Inlet 1 1 2 x 3 1 2 Dia Opening for Gas Connection C 2 PVC...

Page 4: ...these instructions 10 The furnace is not to be used for temporary heating of buildings or structures under construction INSTALLATION REQUIREMENTS Requirements and Codes Thisfurnacemustbeinstalledinacc...

Page 5: ...oratory as recognized under 527 CMR 3 A Product approved vent terminal must be used and if applicable a Product approved air intake must be used In stallation shall be in strict compliance with the ma...

Page 6: ...use of unauthorized parts may void the manufacturer s product warranty coverage The 90 upflow furnace can be installed hori zontally in an attic basement crawl space or alcove This furnace can be inst...

Page 7: ...Tee Soft Tubing Looped to Provide a Drain Trap 3 to 2 Reducer Optional Drainage Port is Downward Reducer Bushing Alternative for Horizontal Vent Pressure Switch Pressure Switch Condensate Vinyl Cap Fi...

Page 8: ...be connected to any other heat producing device such as a fireplace insert stove etc CIRCULATING AIR SUPPLY Plenums and air ducts must be installed in ac cordance with the Standard for the Installatio...

Page 9: ...taminated with various household chemicals which can cause severe corrosion in the furnace combus tion system NOTE If the furnace is operated without ad equate air for combustion and ventilation it ma...

Page 10: ...y involves installation in a small room All such installations must have specific provisions for introduction of combustion and ventilation air Codes require that two openings be provided for this one...

Page 11: ...oved for use with these condensing furnaces Table 3 Vent Table table provided in this section applies to the total of vent and combustion air piping for either type of installation These condensing fu...

Page 12: ...Air Duct must be at least 1 sq in per 4 000 Btuh of total input rating Ducts must extend above attic insulation Air Duct must be at least 1 sq in per 4 000 Btuh of total input rating Ventilation Louve...

Page 13: ...ilding 4 Follow the lighting instructions Place the appliance being inspected in operation Adjust thermostat so appliance shall operate continuously 5 Turn on clothes dryers and any other appliance no...

Page 14: ...ion requires breakable connec tions in the piping Note that a maximum of two couplings per pipe are allowed Upflow Furnaces Combustion Air Pipe Exhaust Vent Cabinet 5 Support System on Vertical Rise B...

Page 15: ...longradiuselbow Therefore forour example we have three additional long radius elbowsforwhichwemustaddtoourpiping Each long radius elbow is equivalent to 2 5 feet so we must add 7 5 feet to our vent le...

Page 16: ...000 Btuh 3 kW and 100 00 Btuh 30 kW 6 inches 15 cm for appliances 10 000 Btuh 3 kW 9 inches 23 cm for appliances 10 000 Btuh 3 kW and 50 000 Btuh 15 kW C Clearance to permanently closed window D Vert...

Page 17: ...other appliance 6 inches 15 cm for appliances 10 000 Btuh 3 kW 12 inches 30 cm for appliances 10 000 Btuh 3 kW and 100 00 Btuh 30 kW 36 inches 91 cm for appliances 100 00 Btuh 30 kW 4 feet 1 2 m belo...

Page 18: ...eCanadianFuelGasCodetakes precedence over these instructions Specifi cally allminimumdistancerequirementswith respecttoterminationoftheventpipinglisted below items 1 through 8 The following list is a...

Page 19: ...or pulled through the wall 4 Insure the combustion air inlet pipe for a 2 pipeinstallation hasa90degreetermination elbow as shown in Figures 16 and 17 Note A combustion air intake must be provided wi...

Page 20: ...4 Route the tubing out of the hole located 8 inches up from the bottom furnace The condensate should drain from the plastic collector box location A in Figure 18 as droplets or a small stream If you...

Page 21: ...J Drain Tube Clamp Loosen For Step 1 Retighten for Step 3 Route to floor drain OR Route to condensate pump Keep downward slope Collector Box A Rotate counter clockwise Step 2 Upflow Models the Nationa...

Page 22: ...jury or death Figure 19 Typical Gas Service Connection MANIFOLD PRESSURE ADJUSTMENT Manifold pressures for low and high stages are independently adjustable Adjustment tap locations on the valve are sh...

Page 23: ...500 440 400 370 350 1 1 2 1600 1100 890 760 670 610 560 530 For a Natural Gas Sea Level Heating Value of 800 to 899 Btu cu ft Elevation feet above sea level zero to 1999 2000 to 4999 5000 to 5999 600...

Page 24: ...nace to replace the pressure switch or to utilize LP propane gas must be made by qualified service personnel using factory authorized or approved parts High altitudeapplicationswiththisfurnacecanbefie...

Page 25: ...for the control system to operate correctly Verify that the incoming neutrallineisconnectedtothewhitewireand the incoming hot line is connected to the blackwireinthejunctionbox Thesefurnaces will not...

Page 26: ...ler The thermostat controller must not be installed on an outside wall or any other location where itsoperationmaybeadverselyaffected Adverse effects include radiant loading from fireplaces sunlight o...

Page 27: ...rocedures After all of the above checks have been made 1 Close the disconnect s to provide line volt age to the furnace 2 Setthermostatcontrollerusingtheinstaller s instructions also refer to Table 1...

Page 28: ...alue for instal lation see Table 1 Refer to either Table 6 for natural gas or Table 7 for LP propane gas to verify the manifold pressure setting required for yourparticularinstallation Toadjustthemani...

Page 29: ...f the supply air limit switch make sure that the blower door is in place and that there is power to the furnace Completely block the return airflow to the furnace by install ing a close off plate in p...

Page 30: ...e vent pressure switch reacts to blockage in the vent or combus tion air piping Supply Air Limit Switch The supply air limit switch prevents the air temperature leaving the furnace from exceeding the...

Page 31: ...N TEMP SENSOR SUCTION PRESS SENSOR GREEN BLACK WHITE RED RED EXV 6 WIRE CABLE CABLE WHITE GREEN GREEN BLACK 3 PIN PLUG 6 PIN PLUG WHITE BLACK FURNACE BOARD GREEN RED RED YELLOW GRAY RED YELLOW RED BLU...

Page 32: ...the bearings is required for the life of the motor Condensate Drain Assembly Be sure the condensate lines are free and open i e avoid kinking hoses Also make sure all hose clamps are tight to avoid dr...

Page 33: ...lower Door Switch 10 Vent Safety Switch 11 Low Voltage Transformer 12 Supply Air Limit Switch 3 4 12 18 14 7 9 11 23 5 6 22 10 16 13 15 21 8 17 20 2 1 13 Circulating Air Blower Assembly 14 Induced Dra...

Page 34: ...eignitionfeaturewhich varies the warm up period as follows If igni tion is successful the warm up is reduced by 3 seconds on each subsequent call for heat until ignition failure occurs Upon igni tion...

Page 35: ...ng 1 Is the thermostat operating properly 2 Are the blower compartment door s in place 3 Is the furnace disconnect closed 4 Has the circuit breaker tripped or the control board fuse burned open 5 Is t...

Page 36: ...k tested _______ Gas Line Pressure _____________________ in water column with furnace operating Manifold Pressure ______________________ in water column with furnace operating Is there adequate fresh...

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