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91

Field Selections

TIMING DIAGRAM, FIELD SELECTIONS &
ADJUSTMENTS

FIELD SELECTIONS –– DIPSWITCHES (continued)

Auto Stage; SW6 & SW7

There are applications where a single stage thermostat is
used with the two stage furnace. With this application the
furnace will initially operate in the low heat stage. Based
upon a user selected time, the furnace will automatically
stage to high heat stage mode. auto staging will take place
with a 24VAC signal on “W1” when autostaging is turned
on. “W2” will be recognized as a call for stage 2 heat even
when autostaging is active. The following dipswitches are
available to accommodate this requirement:

Selection*

SW6

SW7

AutoStage

A

OFF

OFF

Normal 2 stage operation
(Autostaging is off)
(factory setting)

B

ON

OFF

AutoStage, 10 minutes on
low, then to high with
call on “W1”

C

OFF

ON

AutoStage, 15 minutes on
low, then to high with call

on “W1”

D

ON

ON

AutoStage, 20 minutes

on low, then to high with call on W1”
*(ref only)

Manual Fault Clear; SW8

For the first 30 seconds after a change in state of dipswitch
SW8, the furnace control will wait to determine if the switch
becomes

on/off/on/off/on/off

or

off/on/off/on/off/on

within

30 seconds. When this action is detected within 30 sec-
onds, the fault code memory buffer shall be cleared.

FLAME STATUS L.E.D. (AMBER)

A yellow or amber L.E.D. is provided to indicate flame sta-
tus. When normal flame is sensed, the flame L.E.D. is con-
tinuously on. The flame L.E.D. will flash at a rate of one to
four flashes per second if a weak flame is detected. If an
unexpected flame is detected, the L.E.D. will flash rapidly.

The L.E.D. is off when there is no flame detected.

For more diagnostics information, consult the wiring dia-
gram and troubleshooting chart at the end of this book.

TIMING DIAGRAM

On the next page is a timing diagram for normal heat se-
quence. This diagram assumes no faults are present dur-
ing the heat call.

FAULT CLEAR

MANUAL FAULT CLEAR; SW8

Faults will automatically be cleared from the fault buffer after one
week. The fault buffer can also be manually cleared if this is de-
sired. For the first 30 seconds after a change in state of dip-
switch SW8, the furnace control will wait to determine if the

switch becomes

on/off/on/off/on/off

or

off/on/off/on/off/on

within 30 seconds. When this action is detected within 30 sec-
onds, the fault code memory buffer shall be cleared. Be sure to
return the dipswitch to the original state (on or off) or is in the de-
sired position after clearing the fault buffer using this method.

FAULT RECALL

Upon power reset, the three most recent faults which are
less than one week old will be flashed in succession from
the most recent to the oldest. This will be done as a diag-

nostic aid to the field technician. After one week, a fault will
be removed from the fault buffer.

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Содержание 96MDT SERIES

Страница 1: ...6T SERIES 96MDT SERIES U L and or C S A recognized fuel gas and CO carbon monoxide detectors are rec ommended in all applications and their installation should be in accordance with the manufacturer s...

Страница 2: ...ard Vertical Direct Vent Termination 58 Option 2 Standard Horizontal Direct Vent Termination 60 Option 3 Variant of Standard Horizontal Direct Vent Termination 60 Option 4 Alternate Horizontal Direct...

Страница 3: ...t return the unit without open ing the carton If the model number is correct open the carton and verify that the furnace rating label specifies the same furnace model number that is specified on the c...

Страница 4: ...facturer products meet current Fed eral OSHA Guidelines for safety California Proposition 65 warnings are required for certain products which are not covered by the OSHA standards California s Proposi...

Страница 5: ...record height above anticipated snow level or in Canada intake and exhaust vents conform with CSA B149 1 Canadian Natural Gas and Propane Installation Code ______ Correct relationship exhaust to inta...

Страница 6: ...INSTRUC TIONS WARNING COMBUSTION AND VENTILATION AIR MUST BE PRO VIDED TO THE FURNACE AS REQUIRED BY THE NA TIONAL FUEL GAS CODE U S AND CSA B149 1 CANADA AND THE COMBUSTION AND VENTILATION AIR SECTIO...

Страница 7: ...MBUSTION RETURN AIR TEMPERATURE MAINTAINED BE TWEEN 55 F 13 C AND 80 F 27 C AND CLEAN FURNACE DUCT WORK AND COMPO NENTS UPON SUBSTANTIAL COMPLETION OF THE CONSTRUCTION PROCESS AND VERIFY THAT THE FURN...

Страница 8: ...m 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 sign shall read in print size no less tha...

Страница 9: ...the furnace cabinet no freeze protection is required When the trap is mounted out side or partially outside the cabinet it must be protected from freezing Regardless of the location of the drain trap...

Страница 10: ...F L O W NOTE HORIZONTAL LEFT ORIENTATION DEPICTED IN ILLUSTRATION HORIZONTAL RIGHT ORIENTATION IS SIMILAR IN INSTALLATION ST A1194 05 X0 FIGURE 4 OPTION B 2 3 PIPE OPTION A 2 PIPE 8 6 ST A1194 40 X0 C...

Страница 11: ...ORIZONTAL OPTIONAL VENT AIR INLET CONDENSATE DRAIN UPFLOW ELECTRICAL CONNECTION LINE VOLTAGE ELECTRICAL CONNECTION LOW VOLTAGE 22 96 23 80 8 00 11 00 17 44 29 05 26 17 32 88 23 00 14 00 28 06 1 12 29...

Страница 12: ...RIZONTAL AS SHOWN HORIZONTAL INSTALLATIONS REQUIRE CONDENSATE TRAP TO BE MOUNTED EXTERNALLY BELOW THE UNIT USE CAUTION MOUNT THE TRAP AFTER THE UNIT IS AT THE POINT OF INSTALLATION TO PREVENT DAMAGE T...

Страница 13: ...LKHEAD COUPLING HOSE DOUBLE ELBOW TUBE C HOSE CLAMP INTAKE AIR DIFFUSER 8 X 1 2 SCREW X4 8 X 1 2 SCREW X10 5 8 DRAIN HOSE B CONDENSATE TRAP BRACKET DOWN FLOW 2 PVC VANE 1 4 HOLE PLUG 1 2 DRAIN HOSE F...

Страница 14: ...LOW WITH VERTICAL VENT Pg 15 16 UPFLOW WITH LEFT SIDE VENT Pg 17 18 DOWNFLOW WITH RIGHT VENT NON ZERO CLEARANCE Pg 19 22 DOWNFLOW ZERO CLEARANCE Pg 23 27 HORIZONTAL RIGHT WITH RIGHT VENT Pg 28 30 HORI...

Страница 15: ...STALL IN JACKET WITH THE BARBED FITTING POINTED INTO THE VESTIBULE INSTALL 2 OPTION DRAIN RIGHT DETERMINE RIGHT OR LEFT DRAIN OPTION LOCATE 7 8 HOLE IN JACKET SIDE REMOVE PLUG DISCARD DRILL 2 1 8 HOLE...

Страница 16: ...ED __ UNIT HAS FORWARD PITCH __ HEAT TAPE INSTALLED IF REQUIRED __ VERIFY ALL HOSES ARE SECURE AND FULLY SEATED __ CONFIRM THAT ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS H...

Страница 17: ...PLATE 2b INSTALL 2 PIPE GROMMET AS SHOWN 2c INSTALL INTAKE COUPLING AS SHOWN 2b 2c 2a 2 5 8 1a 1b 1c 1 1a REMOVE FLUE TRANSITION TRANSITION COUPLING AND ELBOW NOTE REMOVE INDUCER COUPLING W ELBOW FOR...

Страница 18: ...P OVER END 1 OF HOSE DOUBLE ELBOW 5b4 INSTALL TUBE C WITH HOSE CLAMP AS SHOWN TO HOSE A PRE ASSEMBLED 5b5 ATTACH HOSE DOUBLE ELBOW TO BULKHEAD COUPLING POSITION WIRE HOSE CLAMP __ VERIFY ALL HOSES ARE...

Страница 19: ...NSTRUCTIONS ARE INTENTIONALLY GENERIC SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE FLAT HEAD SCREWDRIVER 1 4 BLACK VENT TUBE TRAP BRACKET DOWN FLOW 1 1a TRANSITION COUPLING DISCARD FLUE TRANSITION DISC...

Страница 20: ...BRACKET WITH 2 SCREWS AS SHOWN 4c INSTALL 559 DRAIN PLUG IN THE CONDENSATE TRAP 4 3d 3c 3a 3b 3a RELOCATE 403 DRAIN PLUG IN THE COLLECTOR BOX 3b INSTALL 2 PIPE GROMMET 3c INTAKE COUPLING IN JACKET AS...

Страница 21: ...IN STEP 1 FROM INDUCER COUPLING TO THE FLUE TAP IN THE CONDENSATE TRAP 6e INSTALL HOSE E FROM COLLECTOR BOX TO TOP OF CONDENSATE TRAP 20 10 APPROXIMATELY 10 20 TILT ON INDUCER COUPLING GROUND ROTATE I...

Страница 22: ...T ALL HOSES ARE FREE OF KINKS __ CONFIRM ALL HOSES AND OTHER DRAIN PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP O...

Страница 23: ...1 4 SHOWN WITH FURNACE IN AS SHIPPED CONDITION NOTE THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 5 16 HEX HEAD DRIVER TRANSITION COUPLING RETAIN...

Страница 24: ...ECTRICAL WIRING SECTION FOR INSTRUCTIONS 5c SEE ELECTRICAL WIRING SECTION FOR INSTRUCTIONS 5c DRILL 2 1 8 HOLES IN BLOWER SHELF 5d 6 5a ROTATE UNIT 180 5b REMOVE KNOCKOUTS WITH HAMMER AND FLAT HEAD SC...

Страница 25: ...SEATED 10c SLIDE PIPE COLLAR ASSEMBLIES FROM STEP 7 OVER THE 2 PIPES AND DRILL 8 PVC GLUE JOINT SLIDE INTAKE PIPE THROUGH THE LEFT SIDE KNOCKOUT ON COVER PLATE CLEAN AND PVC GLUE TO INTAKE COUPLING AS...

Страница 26: ...2 SCREWS 11c CUT 1 4 VENT TUBE TO FIT APPROX 10 1 2 11a ROTATE INDUCER COUPLING 10 NOTE TIGHTEN ELBOW COUPLING CLAMPS TO FLUE PIPE WITH 5 16 NUT DRIVER NOT SHOWN NOTE USE SOAPY WATER TO FACILITATE EA...

Страница 27: ...PARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE IDB COUPLING MUST BE LOCATED ON THE TOP OF THE COUPLING SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTR...

Страница 28: ...E 1 4 VINYL CAP YELLOW ON COLLECTOR BOX VENT TAP 2a 2b 2c MOVE MOVE MOVE 1 1a REMOVE TRAP AND HOSES NOTE TO REMOVE TRAP REMOVE 2 SCREWS AND PULL STRAIGHT OUT 1b INSTALL INTAKE COUPLING IN TOP PLATE AS...

Страница 29: ...ONDENSATE DRAIN PLUG AND CONDENSATE TRAP GASKET AS SHOWN 4d INSTALL CONDENSATE TRAP MAKE SURE THE CHANNEL AT THE LOCATION SHOWN IN THE IMPORTANT SECTION ENGAGES THE EDGE OF THE JACKET AT THE LOCATION...

Страница 30: ...VE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING SEE LOCATION DETAIL IN THE GENERAL CONVERSION INSTRUCTION...

Страница 31: ...PARTS MAY BE DIFFERENT IN YOUR FURNACE 1a REMOVE FLUE TRANSITION TRANSITION COUPLING AND ELBOW NOTE REMOVE INDUCER COUPLING W ELBOW FOR EASIER 1b REMOVE CONDENSATE TRAP AND HOSES NOTE TO REMOVE TRAP R...

Страница 32: ...LLOW ON COLLECTOR BOX VENT TAP 3b 3a 5 5a REMOVE METAL BRACKET AND THE 403 DRAIN PLUG DISCARD 5b REMOVE HOSE A DISCARD 5c INSTALL 559 CONDENSATE DRAIN PLUG AND CONDENSATE TRAP GASKET AS SHOWN 5d INSTA...

Страница 33: ...D COUPLINGS ARE TIGHTENED Checklist 6 HOSE E 6c HOSE F 6d ROTATE UNIT 90 6a ROTATE UNIT 90 6b CUT 1 4 VENT HOSE TO FIT APPROX 5 1 2 AND INSTALL AS SHOWN 6c CUT HOSE E AT LINE 1 INSTALL NOTE MAKE SURE...

Страница 34: ...34 Field Conversions...

Страница 35: ...35 Field Conversions...

Страница 36: ...36 Field Conversions...

Страница 37: ...37 Field Conversions...

Страница 38: ...Field Conversions 38...

Страница 39: ...SE CONVERSION INSTRUCTIONS ARE INTENTIONALLY GENERIC SOME PARTS MAY BE DIFFERENT IN YOUR FURNACE 2 INTAKE COUPLING NOTE STEPS 1 4 SHOWN WITH FURNACE IN AS SHIPPED CONDITION NOTE THESE CONVERSION INSTR...

Страница 40: ...TEP AFTER THE UNIT IS ROTATED 4a REMOVE METAL BRACKET AND 403 DRAIN PLUG DISCARD 4b REMOVE HOSE A DISCARD 4c INSTALL 559 CONDENSATE DRAIN PLUG 4d CONDENSATE TRAP GASKET AS SHOWN 4e INSTALL CONDENSATE...

Страница 41: ...ARTS HAVE A SLOPE IN DIRECTION OF WATER FLOW __ BOTH WORM DRIVES ON THE HOSE CLAMPS OF THE FLUE TRANSITION MUST BE LOCATED ON THE TOP OF THE COUPLING SEE LOCATION DETAIL IN THE GENERAL CONVERSION INST...

Страница 42: ...living space 6 If a filter is installed near the furnace be sure to have adequate space for installation and removal of the unit filter 7 NOTE Where the maximum airflow is 1800 CFM or more BOTH sides...

Страница 43: ...or cold areas Avoid return air from utility rooms kitchens and laundry rooms Ducting DUCTING WARNING UPFLOW FURNACE THE SOLID METAL BASE PLATE SHIPPED WITH THE FURNACE MUST BE IN STALLED IN THE FURNA...

Страница 44: ...installation and removal of the unit filter NOTE DO NOT take return air from furnace rooms garages or cold areas Avoid return air from utility rooms kitchens and laundry rooms FIGURE 10 CUT OUT USING...

Страница 45: ...Chlorine based swimming pool chemicals Water softening chemicals De icing salts or chemicals Carbon tetrachloride Halogen type refrigerants Printing inks paint removers varnishes etc Cleaning solvents...

Страница 46: ...every 4 feet No sags or dips are permitted 3 IMPORTANT Do not common vent with any other ap pliance Do not install in the same chase or chimney with a metal or high temperature plastic pipe from an o...

Страница 47: ...SOLVENT CEMENT IMPORTANT After cutting pipe remove all ragged edges and burrs This is important to prevent reduction in pres sure drop throughout the system 1 Cut pipe end square Chamfer edge of pipe...

Страница 48: ...ucture such as in areas with large accumulations of snow in winter Table 3 shows the equivalent lengths of dif ferent types of elbows Table 4 specifies the equivalent maximum vent lengths specified by...

Страница 49: ...commended maximum number of long sweep elbows for either 2 or 3 inch pipe Combinations of long sweep 90s standard 90s or 45s may be used but the manufacturer recommends the use of long sweep 90s whene...

Страница 50: ...Lengths section Table 4 Application of these products is limited to the terminations listed in Tables 5 and 6 below These manufacturers have provisions for B vent liners and chimney liners which can b...

Страница 51: ...t and Figure 32 Direct Vent the vent location should also be governed by the following guidelines 1 Avoid terminating under any kind of patio or deck How ever if necessary vent piping may be installed...

Страница 52: ...ave openings into the space which are located in accor dance with the requirements set forth in the following subsections A and B Size connected to the heated area or to the outside and by the input o...

Страница 53: ...horizon tal ducts each opening shall have a minimum free area of 1 square inch for each 2 000 BTUH of total appliance input rat ing of all equipment in the enclosure see Figure 15 Table 10 specifies t...

Страница 54: ...or spaces NON DIRECT VENT cont GENERAL VENTING REQUIREMENTS AND GUIDELINES FIGURE 14 NON DIRECT VENT AIR FROM ATTIC OR CRAWL SPACE OPTIONAL INLET AIR 1 SQ IN 6 5 SQ CM PER 4000 BTUH ST A1194 19 FIG D...

Страница 55: ...7 VENT PENETRATIONS FOR NON DIRECT VENT FURNACES ST A1194 19 FIG B FIGURE 18 VENT PENETRATIONS FOR NON DIRECT VENT FURNACES WALL PENETRATIONS 8 MIN 12 MAX 20 31cm ST A1194 19 FIG F WARNING DO NOT USE...

Страница 56: ...M WALL 60 Max TIP PORTION MUST REMAIN VERTICAL VENT MAY BE ROTATED AS MUCH AS 45 LEFT OR RIGHT FROM VERTICAL AS LONG AS TIP PORTION RE MAINS VERTICAL 45 45 ST A1194 19 FIG F 12 31cm ABOVE GRADE OR AVG...

Страница 57: ...opening 6 inches 15cm for appliances 10 000 Btuh 3kw 12 inches 30cm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 12 30cm 3 ft 9m 10 ft 3 05 m pref...

Страница 58: ...ND GUIDELINES WARNING ALL FURNACE INSTALLATIONS MUST COMPLY WITH THE NATIONAL FUEL GAS CODE OR IN CANADA CSA B149 1 NATURAL GAS AND PROPANE INSTALLATION CODE AND LOCAL CODES TO PROVIDE ADEQUATE COMBUS...

Страница 59: ...standard direct vent vertical termination 3 8cm minimum only if no snow accumulation is anticipated Venting Terminations more than 24 above roof penetration re quire additional support 12 31cm U S CA...

Страница 60: ...ES TO OPT B TERMINATION ONLY NOTE This detail applies to the ter mination and NOT the penetra tion through the wall EXHAUST COUPLING REQUIRED INTAKE 12 31cm From Walll NOTE 1 A TRAP IN TH IS NOT REQ 2...

Страница 61: ...TERMINATION 9 PIPING EXTERNAL TO THE STRUCTURE MUST BE INSULATED AS REQUIRED FOR LOCAL CLIMATE 10 WALL PENETRATION AND VENT TERMINATION MUST BE WITH 2 PIPE OPTION B ONLY NOTE 1 A TRAP IN THE COMBUSTI...

Страница 62: ...ion elbows must be at the same angle and face the same direction left or right 2 A wind vane must be installed in the combustion air inlet pipe as shown in the diagram 3 Number and distance between re...

Страница 63: ...rtical horizontal intake air vent runs and may be installed through roofs or sidewalls One 5 inch diameter hole RXGY E03 RXGY E03A or 3 5 8 inch diameter hole RXGY E02 RXGY E02A is required for the in...

Страница 64: ...nadian Natural Gas and Propane Installation Code NOTE Dimensions between the inlet and outlet pipes di rect vent only are fixed by the sidewall termination Other drawings in this manual which specify...

Страница 65: ...10 ft 3 05 m preferred 7 feet 2 1m 3 feet 9m within a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 15cm for appliances 10 000Btuh 3kw 12 inches 30cm for appliances 10 000...

Страница 66: ...24 61cm ABOVE ROOF A SEE 6 1 8m MINIMUM 10 3m RECOMMENDED A SEE MINIMUM 12 31cm ABOVE GRADE IN U S ST A1194 18 DETAIL ST A1194 21 ST A1194 22 DETAIL A CONCENTRIC VENTING THROUGH ROOF CONCENTRIC VENTI...

Страница 67: ...d drain will cause the condensate water to overflow the vent and spill water on the floor below it but the furnace will con tinue to run and heat will be provided If the installer uses this approach h...

Страница 68: ...DRAIN ROUTING THE INSTALLER HAS THE OPTION TO ROUTE THE DRAIN TO THE RIGHT OR LEFT SIDE OF THE FURNACE AS NEEDED A I R F L O W HEIGHT OPTION B HEIGHT OPTION A HEIGHT OF LOWER CONDENSATE DRAIN SENSOR...

Страница 69: ...N AIR AND TENDS TO COLLECT AT LOWER LEVELS MAKING IT MORE DIFFICULT TO SMELL AT NOSE LEVEL NATURAL GAS IS LIGHTER THAN AIR AND WILL RISE POSSIBLY ACCUMULATING IN HIGHER PORTIONS OF THE STRUCTURE IF A...

Страница 70: ...company for the lo cation of the manual main shut off valve The gas line and manual gas stop must be adequate in size to prevent undue pressure drop and never smaller than the pipe size to the gas va...

Страница 71: ...ply CONTINUED ON NEXT PAGE ways use a pipe compound resistant to the action of lique fied petroleum gases on all threaded connections IMPORTANT When making gas pipe connections use a back up wrench to...

Страница 72: ...SHUT OF VALVE FOR CANADIAN INSTALLATIONS CSST CAN BE USED INSTEAD OF 2 STREET ELBOWS 2 STREET ELBOWS UNION MANUAL SHUT OF VALVE DRIP LEG UNION MANUAL SHUT OF VALVE 2 STREET ELBOWS HORIZONTAL FIGURE 36...

Страница 73: ...ABLE 12 NATURAL GAS PIPE CAPACITYTABLE CU FT HR Capacity of gas pipe of different diameters and lengths in cu ft per hr with pressure drop of 0 3 in and specific gravity of 0 60 natural gas Nominal Le...

Страница 74: ...the furnace has been converted to LP gas LP CONVERSION FIGURE 38 TYPICAL LP KIT CONTENTS TABLE 13 LP GAS PIPE CAPACITYTABLE CU FT HR Maximum capacity of pipe in thousands of BTU per hour of undiluted...

Страница 75: ...upplier adjust the line pressure at the regulator MANIFOLD GAS PRESSURE MEASUREMENT Natural gas manifold pressure should be 3 5 3 w c for high fire and 1 8 1 w c for low fire LP gas manifold pressure...

Страница 76: ...Association Inc Batterymarch Park Quincy MA 02269 CSA International 5060 Spectrum Way Mississauga Ontario Canada L4W 5N6 online www csa ca REVERSING THE ELECTRICAL CONNECTION JUNCTION BOX If the line...

Страница 77: ...c sheet for compatibility concerns Generally all thermostats that are not of the current robbing current robbing thermostats require the addition of an isolation relay See Figure 41 types are compatib...

Страница 78: ...oltage neutral terminal on the control board This will power the humidifier whenever the burner is on and the circulating air blower is operating in the heat ing mode NOTE Maximum current 1 0 amps for...

Страница 79: ...SORT FILTER RACK FIELD SUPPLIED FILTER ST A1194 10 X0 ST A1194 11 X0 RXGF CC ACCESSORT FILTER RACK FIELD SUPPLIED FILTER ST A1194 12 X0 FIGURE 43 FILTER LOCATIONS ACCESSORIES FIELD INSTALLED OPTION AC...

Страница 80: ...e to provide correct airflow to each furnace for supply and return UT ELECTRONIC CONTROLS 1095 310 CONTROL BOARD 62 104059 01 1 Single Stage Operation a Control board ONE is on furnace connected to th...

Страница 81: ...SHOWN IS FIELD INSTALLED NOTE A FAULT CODE 20 WILL FLASH TO INDICATE A TWINNING PROBLEM CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT 100 HEAT AT ALL TIMES ACCESSORIES CONTROL BOARDS Accessories FIGU...

Страница 82: ...T A1254 07 01 NOTE ALL WIRING SHOWN IS FIELD INSTALLED NOTE A FAULT CODE 20 WILL FLASH TO INDICATE A TWINNING PROBLEM CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT SW 7 SW6 TIME TO 2nd STG OFF ON N A...

Страница 83: ...WN IS FIELD INSTALLED NOTE A FAULT CODE 20 WILL FLASH TO INDICATE A TWINNING PROBLEM CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT TWIN TWIN ACCESSORIES CONTROL BOARDS Accessories FIGURE 46 UT ELECTR...

Страница 84: ...he volume of natural gas per hour 14 000 900 Q 15 56 FT3 Q The volume of natural gas used on this furnace at sea level is 15 56 ft3 per hour Use this value to locate the ori fice size in table Table E...

Страница 85: ...est method 5 Furnace operation is optimized when operating at design rate Installer is responsible to verify rate 6 This table applies to 90 models only with 14 000 BTU Burner DO NOT USE THIS CHART FO...

Страница 86: ...rates must be measured on site with manifold pressure adjustment to ensure that an actual 10 reduction in input rate is achieved Once this field adjustment has been made the label shown in Figure 47 m...

Страница 87: ...tegrated Controls with Direct Spark Ignition UT ELECTRONIC CONTROLS Integrated Controls with Direct Spark Ignition 1 Each time the thermostat W Heating contacts close the furnace control checks to mak...

Страница 88: ...esent the fault displayed is normally re solved by priority noted in the table above The lower pri ority number is displayed over a higher fault priority number For example a fault priority 2 Unexpect...

Страница 89: ...condition cannot be reset by cycling the heat call 2 Voltage is detected unexpectedly on the gas valve contacts welded relay and will not clear by cycling the inducer Fault code 93 is set and display...

Страница 90: ...n a vertical orientation and the low voltage terminal block T2 is on the left Cool Blower Off Delay SW2 SW3 A means of selecting the cooling speed blower off delay time is provided In legacy mode dips...

Страница 91: ...r amber L E D is provided to indicate flame sta tus When normal flame is sensed the flame L E D is con tinuously on The flame L E D will flash at a rate of one to four flashes per second if a weak fla...

Страница 92: ...y major changes in the gas flow rate should be made by changing the size of the burner orifices To change orifice spuds shut off the manual gas valve and remove the gas manifold On LP gas furnaces the...

Страница 93: ...nifold pressure and or gas orifice size may need to be changed to adjust the furnace to its nameplate input Consult the local gas utility to obtain the yearly average heating value and orifice size re...

Страница 94: ...IMITE D MISSION D OXYDES D AZOTE NOx EN NANORAMMES PAR JOULE ___ HOURLY INPUT RATING DEBIT CALORIFQUE MAXIMUM Btu hr Kw 75 000 21 98 HOURLY INPUT RATING DEBIT CALORIFQUE MINIMUM Btu hr Kw FACTORY EQUI...

Страница 95: ...279 x 178 High 1423 1387 1355 1320 1285 1250 1215 1180 1144 Low 916 869 820 752 685 646 586 530 488 R96T 1 2 373 Med Lo 1064 1022 979 937 888 820 770 729 673 602317 Med 1192 1161 1121 1081 1041 998 9...

Страница 96: ...M1 or M2 Check motor lead color for speed designation Heating speeds should not be reduced where it could cause the furnace air temperature to rise to exceed the maximum outlet air temperature specifi...

Страница 97: ...neutralizer if used be replaced by a qualified installer service agency or the gas supplier IMPORTANT It is recommended that an annual inspec tion and cleaning of all furnace markings be made to as su...

Страница 98: ...pes or wires in walls Check heat anticipator setting Furnace may need an isolation relay Check installation instructions under section titled Isolation Relay for details Verify correct furnace sizing...

Страница 99: ...RING REGULATIONS AND LOCAL CODES AS APPLICABLE REPLACEMENT WIRE MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL 105C MIN FIELD INSTALLED FACTORY STANDARD LOW VOLTAGE FIELD INSTALLED FACTORY O...

Страница 100: ...100 CM 1016...

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