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F96VTN and G96VTN: Installation, Start-up, Operating and Service and Maintenance Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

9. Install the green ground screw to the J-Box bracket and attach both

ground wires to the green ground screw.

10. Connect any code required external disconnect(s) to field power

wiring.

11. Connect field power and neutral leads to furnace power leads inside

the external electrical box as shown in

Fig. 31

For a top panel-mounted external electrical box,

complete the following:

1. Drill two (2) 1/8-in. (3 mm) pilot holes through the dimples in the

furnace casing near the 7/8-in. knock-out on the side of the casing.

Do not remove the knock-out in the side of the casing.

2. Align the J-Box bracket with the pilot holes inside the furnace

casing.

3. Install 2 screws through the outside of the casing to secure the

J-Box bracket to the furnace casing.

4. Route field power wiring into external electrical box.
5. Pull furnace line voltage power wires through strain-relief bushing

of the external electrical box.

6. Pull the ground wire of the field line voltage wiring through the

strain-relief bushing into the furnace casing.

7. Install the green ground screw to the J-Box bracket and attach both

ground wires to the green ground screw.

8. Connect any code required external disconnect(s) to field power

wiring.

9. Connect field power and neutral leads to furnace power leads inside

the external electrical box as shown in

Fig. 33

Power Cord Installation in Furnace J-Box

NOTE:

Power cords must be able to handle the electrical requirements

listed in

Table 11

. Refer to power cord manufacturer’s listings.

1. Install J-Box mounting bracket to inside of furnace casing. See

Fig. 34

2. Route listed power cord through 7/8-in. (22 mm) diameter hole in

casing and J-Box bracket.

3. Secure power cord to J-Box bracket with a strain relief bushing or a

connector approved for the type of cord used.

4. Pull furnace power wires through 1/2-in. (12 mm) diameter hole in

J-Box. If necessary, loosen power wires from strain—relief wire-tie

on furnace wiring harness.

5. Connect field ground wire and factory ground wire to green ground

screw on J-Box mounting bracket as shown in

Fig. 34

6. Connect power cord power and neutral leads to furnace power leads

as shown in

Fig. 32

7. Attach furnace J-Box cover to mounting bracket with screws

supplied in loose parts bag. Do not pinch wires between cover and

bracket. See

Fig. 34

BX Cable Installation in Furnace J-Box

1. Install J-Box mounting bracket to inside of furnace casing. See

Fig. 34

2. Route BX connector through 7/8-in. (22 mm) diameter hole in

casing and J-Box bracket.

3. Secure BX cable to J-Box bracket with connectors approved for the

type of cable used.

4. Connect field ground wire and factory ground wire to green ground

screw on J-Box mounting bracket as shown in

Fig. 34

5. Connect field power and neutral leads to furnace power leads. as

shown in

Fig. 32

6. Attach furnace J-Box cover to mounting bracket with screws

supplied in loose parts bag. Do not pinch wires between cover and

bracket.

Communication Connector is only used when the twinning two furnaces

using a factory accessory twinning kit. Only select sizes can be twinned,

refer to Twinning Kit instructions for list of approved furnaces. See

Fig. 36

L14F006A

Fig. 36 – Twinning Communication Connector

24-V Wiring

Make field 24-v connections at the 24-v terminal strip. See

Fig. 38

Connect terminal Y/Y2 as shown in

Fig. 32

for proper cooling operation.

Use only AWG No. 18, color-coded, copper thermostat wire.

NOTE:

Use AWG No. 18 color-coded copper thermostat wire for

lengths up to 100 ft. (30 M). For wire lengths over 100 ft., use AWG No.

16 wire.
The 24-v circuit contains an automotive-type, 3-amp. fuse located on the

control. Any direct shorts during installation, service, or maintenance

could cause this fuse to blow. If fuse replacement is required, use ONLY

a 3-amp. fuse of identical size. See

Fig. 38

Thermostats

A single stage heating and cooling thermostat can be used with the

furnace. The furnace control board CPU will control the furnace and

outdoor unit staging. A two stage heating and cooling thermostat can

also be used to control the staging. For two stage thermostat control of

the furnace staging, turn SW1-2 ON at the furnace control board. For

two stage thermostat control of a 2-stage outdoor unit, remove the

ACRDJ jumper from the furnace control board. Refer to typical

thermostat wiring diagrams and the Sequence of Operation section for

additional details. Consult the thermostat installation instructions for

specific information about configuring the thermostat. See

Fig. 38

and

Fig. 39

A11157

Fig. 37 – Field-supplied Isolation Relay for Humidifiers with

Internal Power Supply

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in dangerous operation,

personal injury, death, or property damage.

Do not drill into blower shelf of furnace to route control wiring. Route

any control or accessory wiring to the blower compartment through

external knockouts on the casing.

NOT USED

24 V

Coil

To Humidifier Leads

To Com/24V Screw Terminal

on Thermostat Strip

To HUM Terminal On

Furnace Control Board

To Humidifier Leads

Содержание F96VTN

Страница 1: ...ANCE PROCEDURES 58 WINTERIZATION 65 SEQUENCE OF OPERATION 68 PARTS REPLACEMENT INFORMATION GUIDE 71 MODEL NOMENCLATURE 71 Most states in the USA and jurisdictions in Canada have laws that require the...

Страница 2: ...o the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The...

Страница 3: ...ARNING FIRE INJURY OR DEATH HAZARD Failure to follow this warning could result in property damage personal injury or death This furnace was manufactured to operate with natural gas When fuel supply is...

Страница 4: ...ion of leaks to check all connections as specified in the Gas Piping section 6 Always install furnace to operate within the furnace s intended temperature rise range with a duct system which has an ex...

Страница 5: ...scomfort and or vent freezing Failure to follow these guidelines is considered faulty installation and or misapplication of the furnace and resulting failure damage or repairs may impact warranty cove...

Страница 6: ...lumbing codes CANADA Current edition of CAN CSA B149 1 Parts 4 5 6 and 9 In the state of Massachusetts This product must be installed by a licensed plumber or gas fitter When flexible connectors are u...

Страница 7: ...ficient air must be provided to avoid negative pressure in the equipment room or space A positive seal must be made between the furnace cabinet and the return air duct to prevent pulling air from the...

Страница 8: ...ustion Air Method 1 Provide the space with sufficient air for proper combustion ventilation and dilution of flue gases using permanent horizontal or vertical duct s or opening s directly communicating...

Страница 9: ...4 Unusually tight construction is defined as Construction with a Walls and ceilings exposed to the outdoors have a continuous sealed vapor barrier Openings are gasketed or sealed and b Doors and open...

Страница 10: ...09 9 229 40 26087 7 178 30 19355 6 152 140 000 70 45161 10 254 47 30435 8 203 35 22581 7 178 FURNACE WATER HEATER TOTAL INPUT 100 000 30 000 130 000 divided by 4 000 32 5 Sq In for each two Vertical D...

Страница 11: ...horizontal drain trap grommet is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS It it NOT required for applications using single pipe or ventilated combustion air venting The condensate trap extends belo...

Страница 12: ...ured per local codes Supports and clamps should be spaced to prevent the drain line from sagging or being dislocated from the furnace or termination point In the absence of local codes consult the cur...

Страница 13: ...amp and insert the long end of the adapter or the 1 2 in CPVC pipe into the outlet stub on the drain tube 9 Connect additional condensate piping to a code approved drain or to a condensate pump approv...

Страница 14: ...an be constructed from field supplied 1 2 in CPVC or 3 4 in PVC pipe in compliance with local building codes A factory supplied 1 2 in CPVC to 3 4 in PVC adapter is supplied in the loose parts bag for...

Страница 15: ...viewed for possible openings using light assistance or a probe can be inserted for sampling the air stream The cover attachment shall prevent leaks Connect supply air duct to flanges on furnace supply...

Страница 16: ...s cased evaporator coil or coil casing is used install as shown in Fig 25 NOTE It is recommended that the perforated supply air duct flanges be completely removed from furnace when installing the furn...

Страница 17: ...ustible flooring subbase required 15 1 8 384 19 483 16 3 4 425 20 5 8 524 Downflow Applications on Combustible Flooring with coil assembly or coil box subbase not required 15 1 2 394 19 483 16 1 2 419...

Страница 18: ...onnect supply air duct to flanges on furnace supply air outlet Bend flange upward to 90 with wide duct pliers See Fig 20 The supply air duct must be connected to ONLY the furnace supply outlet air duc...

Страница 19: ...on sheet for performance data for a particular filter media or IAQ device Design the filter and associated ductwork for the best match of pressure drop versus filter size Best practice usually chooses...

Страница 20: ...5 13 0 08 21 0 13 32 0 29 72 0 20 49 1000 472 0 06 16 0 11 28 0 17 43 0 27 67 1200 566 0 07 18 0 14 36 0 22 56 1400 661 0 08 21 0 18 45 0 28 70 1600 755 0 09 23 0 21 54 1800 850 0 10 25 0 26 64 20 x 2...

Страница 21: ...5 See Note 4 ON ON ON 385 335 See Note 4 Heating SW1 High Heat Airflow3 800 770 730 700 665 635 605 570 540 510 Low Heat Airflow3 560 520 470 425 390 See Note 4 SW1 5 and SW2 2 set to OFF except as in...

Страница 22: ...e 4 Heating SW1 High Heat Airflow3 1470 1435 1400 1365 1330 1295 1260 1225 1190 1155 Low Heat Airflow3 1150 1110 1070 1030 990 950 910 870 830 790 SW1 5 and SW2 2 set to OFF except as indicated See No...

Страница 23: ...ote 4 Heating SW1 High Heat Airflow3 1810 1765 1720 1675 1625 1575 1525 1475 1425 1375 Low Heat Airflow3 1405 1350 1290 1225 1160 1100 See Note 4 SW1 5 and SW2 2 set to OFF except as indicated See Not...

Страница 24: ...e dampers or other flow control must prevent chilled air from entering the furnace If the dampers are manually operated they must be equipped with means to prevent operation of either unit unless the...

Страница 25: ...is used black pipe shall be installed at the furnace gas control valve and extend a minimum of 2 in 51 mm outside the furnace WARNING FIRE OR EXPLOSION HAZARD Failure to follow this warning could resu...

Страница 26: ...pe must be disconnected from furnace and capped before and during supply pipe pressure test If test pressure is equal to or less than 0 5 psig 14 in w c turn off electric shutoff switch located on fur...

Страница 27: ...M WIRE LENGTH FT M Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop MAXIMUM FUSE OR CKT BKR AMPS Time delay type is recommended...

Страница 28: ...piping or the indoor coil drain See Fig 30 for alternate electric entry through top panel 1 Select and remove 7 8 in 22 mm knock out on the desired side of the casing Remove the knock out from the cas...

Страница 29: ...Install J Box mounting bracket to inside of furnace casing See Fig 34 2 Route BX connector through 7 8 in 22 mm diameter hole in casing and J Box bracket 3 Secure BX cable to J Box bracket with connec...

Страница 30: ...HUM terminal is a 24 VAC output energized when the blower is operating during a call for heat 3 Twinning Connector The furnace can only be controlled by a single or two stage thermostat A Communicati...

Страница 31: ...he venting system should be done in conjunction with planning for the ductwork drainage and furnace accessories such as air cleaners and humidifiers Begin assembling the venting system AFTER the furna...

Страница 32: ...Canadien recommande l inspection par un personel qualifi et ce une fois par ann e Les autorit es ayant juridiction inspecteurs de gas inspecteurs en b timents d partement des incendies etc devraient t...

Страница 33: ...moisture from entering the furnace from the combustion air inlet pipe See Fig 51 When sizing venting systems the equivalent length of the optional inlet pipe moisture trap must be taken into account W...

Страница 34: ...damage plants shrubs air conditioning equipment or utility meters 3 Do not locate termination directly into prevailing winds Termination should be positioned so that it will not be affected by sustain...

Страница 35: ...lvents Primers Cements PVC Pressure Pipe Schedule 40 D1785 UL 1738 D2466 or D2665 F656 D2564 DWV Schedule 40 D1785 D2665 SDR 26 N A D2241 SDR 21 N A D2241 IPEX Schedule 40 ULC S636 ULC S636 ULC S636 U...

Страница 36: ...Maintain 12 in 305mm minimum clearance above highest anticipated snow level or grade whichever is greater Side wall termination with 2 elbows preferred 12 in min 305 mm from overhang or roof Maintain...

Страница 37: ...air supply inlet 6 ft 1 8 M 3ft 9 M above if within 10 ft 3 M horizontally L Clearance under a veranda porch deck or balcony 12 in 305 mm Permitted only if veranda porch deck or balcony is fully open...

Страница 38: ...n See Note 8 K Clearance to a mechanical air supply inlet 6 ft 1 8 M 3ft 9 M above if within 10 ft 3 M horizontally L Clearance under a veranda porch deck or balcony 12 in 305 mm Permitted only if ver...

Страница 39: ...arance distances when vent termination is located more than 6 ft 2 M away from an inside corner refer to the appropriate Direct Vent or Non Direct Vent Clearance Table Clearance description when termi...

Страница 40: ...to Fig 50 for terminations approved for use in Alberta and Saskatchewan Size the Vent and Combustion Air Pipes General Furnace combustion air and vent pipe connections are sized for 2 in 50 mm ND PVC...

Страница 41: ...nt Termination NOTE Maximum Equivalent Vent Length MEVL includes standard and concentric vent termination and does NOT include elbows Use Table 15 Deductions from Maximum Equivalent Vent Length to det...

Страница 42: ...gth Unit Size 40 000 1 60 000 2 80 000 100 000 3 120 000 Altitude feet Pipe Dia in 1 2 2 1 2 2 3 1 2 2 3 4 2 2 3 4 2 3 4 0 2000 40 155 185 20 100 175 200 15 55 130 175 200 20 80 175 200 10 75 185 2001...

Страница 43: ...each pipe 2 Count the number of elbows for each pipe 3 For each pipe multiply the number of elbows by the equivalent length for the type of elbow used Record the equivalent length of all the elbows fo...

Страница 44: ...be necessary to remove one knockout for the vent pipe and the other knockout for the combustion air connection See Fig 15 Use a flat blade screwdriver and tap on the knockout on opposite sides where t...

Страница 45: ...1 64 76 7 6 1 6 1 6 1 6 1 15 2 13 7 6 1 18 3 15 2 6 1 9 1 9 1 7 6 6 1 22 9 19 8 18 3 6 1 25 9 22 9 19 8 18 3 0 1 5 1 5 6 1 7 6 6 1 6 1 9 1 7 6 4 6 4 6 3 0 3 0 6 1 12 2 9 1 7 6 6 1 13 7 12 2 9 1 29 1 5...

Страница 46: ...w Configurations Appearance May Vary See Notes for Venting Options A11327A HORIZONTAL LEFT VERTICAL VENT CONFIGURATION 1 2 3 4 6 7 5 5 Rotate vent elbow to required position Any other unused knockout...

Страница 47: ...adapter Slide clamps over the coupling 3 Slide vent pipe through adapter and coupling into vent elbow 4 Insert vent pipe into vent elbow 5 Torque all clamps 15 lb in 6 Attach combustion air pipe adapt...

Страница 48: ...r with sheet metal screws DO NOT DRILL INTO POLYPROPYLENE VENT PIPES Use an optional accessory vent coupling if needed 12 Seal around the combustion air pipe with silicone or foil tape SILICONE SEALER...

Страница 49: ...than 18 in 457 mm apart to help avoid vent gas recirculation into combustion air intake Termination elbows will be installed after the vent and if used combustion air pipe is installed Sidewall Termi...

Страница 50: ...t restrictor 1 Remove the vent elbow from the inducer outlet 2 Align the lock tabs on the outlet restrictor with the slots on inside outlet of the inducer assembly 3 Snap the outlet restrictor in plac...

Страница 51: ...te setup switches on furnace control 3 Configure the setup switches as necessary for the application 4 Replace blower door NOTE If a bypass humidifier is used setup switch SW1 4 Comfort Efficiency sho...

Страница 52: ...ontinuous Fan CF Setup Switches SW2 3 4 5 The CF setup switches are used to select desired airflow when thermostat is in continuous fan mode or to select low cooling airflow for two speed cooling unit...

Страница 53: ...low these warnings could result in personal injury or death Failure to use a properly configured trap or NOT water priming trap before operating furnace may allow positive pressure vent gases to enter...

Страница 54: ...le to adjust the manifold pressure to obtain the proper input rate To check the inlet gas pressure 1 Make sure the gas supply is turned off to the furnace and at the electric switch on the gas valve 2...

Страница 55: ...erved by the meter b Move setup switch SW1 2 to ON position This keeps furnace locked in low heat operation when only W W1 is energized c Jumper R to W W1 d Run furnace for 3 minutes in low heat opera...

Страница 56: ...low in high heat 1 Remove jumpers from R and W W1 and W2 2 Wait until the blower off delay is completed 3 Turn 115 VAC power off 4 Check the position of setup switch SW1 4 When set to OFF airflow is r...

Страница 57: ...42 3 4 1 4 42 3 5 1 5 42 3 6 1 5 42 3 7 1 6 2001 611 825 43 3 8 1 6 42 3 3 1 4 42 3 4 1 4 42 3 5 1 5 to 850 43 3 6 1 5 43 3 7 1 6 42 3 2 1 3 42 3 3 1 4 3000 914 875 43 3 4 1 4 43 3 5 1 5 43 3 7 1 5 43...

Страница 58: ...25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 95 237 29 124 248 621 78 46 92 231 30 120 240 600 80 45 90 225 31 116 232 581 82 44 88 220 32...

Страница 59: ...r switch install blower door and refer to the SERVICE label on the blower door for more information Component Self Test Component Test can ONLY be initiated by performing the following 1 Remove blower...

Страница 60: ...posable media filter replace only with a factory specified media filter of the same size 6 Slide filter into cabinet 7 Replace filter cabinet door 8 Turn on electrical supply to furnace A190094B Fig 6...

Страница 61: ...mbly c Mark blower wheel orientation and cutoff plate location to ensure proper reassembly d Remove screws securing cutoff plate and remove cutoff plate from housing e Remove bolts holding motor mount...

Страница 62: ...oth rollout switches 15 Slide one piece burner out of slots on sides of burner assembly 16 Remove the flame sensor from the burner assembly 17 Optional Remove the Hot Surface Igniter HSI and bracket f...

Страница 63: ...the collector box opening or water will flow out of tube 4 Remove the collector box plug from the top port on the upper corner of the collector box See Fig 61 5 Attach a funnel with a flexible tube to...

Страница 64: ...ich needs to be corrected such as improper adjustment of manifold pressure insufficient or poor quality combustion air improper vent termination incorrect size or damaged manifold orifice s improper g...

Страница 65: ...Antifreeze should run through the inducer housing overfill condensate trap and flow to an open drain 8 Replace the rubber plug in the port on the collector box 9 Remove the middle unused rubber plug f...

Страница 66: ...Y Y2 simultaneously until the heartbeat flashes When done put setup switch SW1 1 in the OFF position Was there a previous status code other than the heartbeat Go to section below for the status code...

Страница 67: ...urners operate in high heat then switch to low heat check manifold pressure If OK check burner carryover and flame sensor location Clean flame sensor with fine steel wool and recheck current Nominal c...

Страница 68: ...ch HPS closes and the high heat gas valve solenoid GV HI is energized The furnace control CPU begins a 15 second prepurge period after the low heat pressure switch LPS closes If the high heat pressure...

Страница 69: ...ow High cooling airflow is based on the A C air conditioning selection shown in Fig 59 The electronic air cleaner terminal EAC 1 is energized with 115 vac whenever the blower motor BLWM is operating W...

Страница 70: ...ack on at heating airflow When the W W1 input signal disappears the furnace control begins a normal inducer post purge period while changing the blower airflow If Y Y2 input is still energized the fur...

Страница 71: ...cer Inducer assembly Inducer motor capacitor when used Inducer motor module when used TO OBTAIN INFORMATION ON PARTS Consult your installing dealer or a licensed Heating and Air Conditioning company o...

Страница 72: ...02 23 Catalog No 440 01 4801 00 REV C Replaces 440 01 4801 00 REV B F96VTN and G96VTN Installation Start up Operating and Service and Maintenance Instructions Manufacturer reserves the right to chang...

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