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Страница: 48 / 59

508093-01

Issue 2033

Page 48 of 59

Furnace should operate at least 5 minutes before checking

gas flow. Determine time in seconds for two revolutions of

gas through the meter. (Two revolutions assures a more

accurate time.) Divide by two and compare to time in Table

16. If manifold pressure matches Table 18 and rate is

incorrect, check gas orifices for proper size and restriction.

Remove temporary gas meter if installed.

NOTE:

To obtain accurate reading, shut off all other gas

appliances connected to meter.

Supply Pressure Measurement

When testing supply gas pressure, use the 1/8” N.P.T.

plugged tap located on the gas valve to facilitate test gauge

connection. See Figure 53. Check gas line pressure with

unit firing at maximum rate. Low pressure may result in

erratic operation or underfire. High pressure can result in

permanent damage to gas valve or overfire.

On multiple unit installations, each unit should be checked

separately, with and without other units operating. Supply

pressure must fall within range listed in Table 18.

Manifold Pressure Measurement

Follow the steps below and use Figure 55 as a reference.

Gas manifold Kit 10L34 provides additional components if

needed.

Connect the test gauge positive side “+“ to manifold

pressure tap on gas valve.

Tee into the gas valve regulator vent hose and connect

to test gauge negative “-”.

Start unit and let run for 5 minutes to allow for steady

state conditions.

After allowing unit to stabilize for 5 minutes, record

manifold pressure and compare to value given in

Table 18.

Shut unit off and remove manometer as soon as an

accurate reading has been obtained. Take care to

remove barbed fitting and replace threaded plug.

Start unit and perform leak check. Seal leaks if found.

(+)

(−)

Gas Valve Regulator

Vent Hose

(to burner box)

2” Long Square Tubing

(remove for manifold adjustment)

Tee

10” Long

Square

Tubing

Measuring Device

Barbed Fitting

Manifold Pressure Outlet

Negative Barbed Fitting

(remove for manifold adjustment)

Figure 55.

Содержание 95G1UHE

Страница 1: ...quence of Operation 59 This is a safety alert symbol and should never be ignored When you see this symbol on labels or in manuals be alert to the potential for personal injury or death Electric shock hazard Can cause injury or death Before attempting to perform any service or maintenance turn the electrical power to unit OFF at disconnect switch es Unit may have multiple power supplies WARNING As ...

Страница 2: ...2 120 60 1 15 6 8 40 136 A95UH1E090C16S 88 000 85 000 95 2 1 2 4 1 2 120 60 1 15 8 4 40 160 A95UH1E110C20S 110 000 106 000 95 3 5 1 2 120 60 1 15 10 9 40 170 A95UH1E135D20S 132 000 128 000 95 3 1 2 5 1 2 120 60 1 15 10 9 40 187 Note For vent length and clearances to combustibles please reference installation instructions MODEL NUMBER GUIDE Numeric Code S Stainless Steel Heat Exchanger 08 2 ton add...

Страница 3: ...45 N A Med High 1250 1205 1175 1145 1100 1070 1035 Med 1130 1100 1065 1045 995 960 925 Med Low 880 835 795 745 705 670 610 Low 815 775 730 670 640 585 550 A95UH1E090C16S 3 4 10 x 10 40 70 High 1660 1615 1590 1560 1525 1475 N A Med High 1435 1390 1350 1310 1255 1220 1170 Med 1290 1240 1200 1155 1105 1065 1010 Med Low 1195 1140 1110 1055 1005 960 920 Low 1045 995 945 895 855 805 760 A95UH1E110C20S 1...

Страница 4: ...2 24 5 D Width Night Service Kit 86W57 Single Stage Horizontal Suspension Kit 51W10 80 90 Kit Flush Mount Termination 90 Furnaces Only US Only 51W11 2 3 Vent Version Concentric Vent Kit 90 Furnaces Only US Only 71M80 1 1 2 Vent Version 69M29 2 Vent Version 60L46 3 Vent Version Concentric Vent Kit 90 Furnaces Only Canada Only 44W92 1 1 2 and 2 Vent Version 44W93 3 Vent Version 2 Stage Compressor Ki...

Страница 5: ... 15 6 8 40 134 95G1UH090CE16 88 000 85 000 95 2 1 2 4 1 2 120 60 1 15 8 4 40 158 95G1UH110CE20 110 000 106 000 95 3 5 1 2 120 60 1 15 10 9 40 170 95G1UH135DE20 132 000 128 000 95 3 1 2 5 1 2 120 60 1 15 10 9 40 187 Note For vent length and clearances to combustibles please reference installation instructions MODEL NUMBER GUIDE Major Revision 12 3 Ton add on cooling 16 4 Ton add on cooling 20 5 Ton...

Страница 6: ...5 795 745 705 670 610 Low 815 775 730 670 640 585 550 95G1UH090CE16 3 4 10 x 10 40 70 High 1660 1615 1590 1560 1525 1475 N A Med High 1435 1390 1350 1310 1255 1220 1170 Med 1290 1240 1200 1155 1105 1065 1010 Med Low 1195 1140 1110 1055 1005 960 920 Low 1045 995 945 895 855 805 760 95G1UH110CE20 1 11 1 2 x 10 45 75 High 2130 2095 2065 2030 1995 1955 1930 Med High 1865 1835 1785 1755 1705 1660 1635 ...

Страница 7: ... 11M61 21 0 C Width Night Service Kit 86W57 Single Stage Horizontal Suspension Kit 51W10 80 90 Kit Flush Mount Termination 90 Furnaces Only US Only 51W11 2 3 Vent Version Concentric Vent Kit 90 Furnaces Only US Only 71M80 1 1 2 Vent Version 69M29 2 Vent Version 60L46 3 Vent Version Concentric Vent Kit 90 Furnaces Only Canada Only 44W92 1 1 2 and 2 Vent Version 44W93 3 Vent Version 2 Stage Compress...

Страница 8: ...e 8 of 59 Figure 1 TOP CAP HEAT EXCHANGER ASSEMBLY BURNER BOX ASSEMBLY GAS VALVE FLUE COLLAR COMBUSTION AIR INDUCER CABINET BLOWER ASSEMBLY CONTROL BOX COMBUSTION AIR PRESSURE PROVE SWITCH COLD END HEADER BOX Parts Arrangement ...

Страница 9: ...on to the transformer T1 The breaker is rated at 3A at 32V If the current exceeds this limit the breaker will trip and all unit operation will shutdown The breaker can be manually reset by pressing the button on the face Integrated Ignition Control A92 Shock hazard Disconnect power before servicing Control is not field repairable If control is inoperable simply replace entire control Can cause inj...

Страница 10: ...g heat demand 4 Low Flame Signal check flame sensor 5 Watchguard burner failed to light exceeded maximum number of retries or recycles 6 Not Used 7 Primary or Secondary Limit Open or Watchguard Mode Limit Switch Open longer than 3 minutes 8 Rollout Switch Open 9 Pressure Switch failed to close or opened during heat demand 10 Watchguard Pressure Switch opened 5 times during one heat demand 11 Press...

Страница 11: ... Open 9 Pressure Switch failed to close or opened during heat demand 10 Watchguard Pressure Switch opened 5 times during one heat demand 11 Pressure Switch stuck closed prior to activation of combustion air inducer 12 Flame Sensed without gas valve energized 13 Low Line Voltage 1 A Heartbeat is indicated by a Slow Flash 1 sec on 1 sec off repeating 2 Error codes are indicated by a Rapid Flash the ...

Страница 12: ...ain Fan Time Control Heating Fan On Time The fan on time of 30 seconds is not adjustable Heating Fan Off Time Fan off time time that the blower operates after the heat demand has been satisfied can be adjusted by moving the jumper to a different setting The unit is shipped with a factory fan off setting of 90 seconds For customized comfort monitor the supply air temperature once the heat demand is...

Страница 13: ...y to clean without removing any part of the burners During operation flame is sensed by current passed through the flame and sensing electrode The ignition control allows the gas valve to remain open as long as flame signal is sensed NOTE The A95UH1E 95G1UHE is polarity sensitive Make sure that the furnace is wired correctly and is properly grounded A microamp DC meter is needed to check the flame...

Страница 14: ...alve to assure safety shut off If the gas valve must be replaced the same type valve must be used 24VAC terminals and gas control switch are located on top of the valve All terminals on the gas valve are connected to wires from the ignition control 24V applied to the terminals opens the valve Inlet and outlet pressure taps are located on the valve A manifold adjustment screw is also located on the...

Страница 15: ... 1 5 0 5 1 4 0 4 Set Dial to DC MicroAmps Multi Meter To Control Sensor Terminal To Flame Terminal Flame Sensor Terminal Flame Sensor Wire Intergrated Control Remove sensor from integrated control and connect alligator clip to flame sensor lead Remove sensor from integrated control and connect alligator clip to terminal on control ...

Страница 16: ... the manifold and check resistance of ignitor at the plug Reading should be between 39 and 70 ohms If the reading is correct then the problem is with the wiring between the jack plug and the control If reading is not correct the issue is the ignitor Test 3 Check ignitor for correct voltage Insert meter probes into terminals 2 and 4 use small diameter probes in order not to damage plug Check voltag...

Страница 17: ...re proper flow through the heat exchanger The switch is a SPST N O pressure switch electrically connected to the integrated control The purpose of the switch is to prevent burner operation if the combustion air inducer is not moving enough air for proper combustion Figure 10 Pressure Switch On start up the switch monitors whether the combustion air inducer is operating It closes a circuit to the i...

Страница 18: ...ine and with hose from the positive side of the manometer to the tee in the positive line NOTE tive However the port reads less negative pressure than the port 4 Operate unit and observe manometer reading Readings will change as heat exchanger warms a Take one reading immediately after start up b Take a second reading after unit has reached steady state approximately 5 minutes This will be the pre...

Страница 19: ...gh Table 13 Wrong pressure switch installed in the unit or pressure switch is out of calibration Check that the correct pressure switch is installed in the unit Replace pressure switch if necessary Miswiring of furnace or improper connections at pressure switch Check for correct wiring and loose connections Correct wiring and or replace any loose connections Pressure switch failure If all the abov...

Страница 20: ...e is present in tests 1 and 2 and motor is not operating properly replace motor The motor is not field repairable If replacing the indoor blower motor or blower wheel is necessary placement is critical The blower wheel must be centered in the blower housing as shown in Figure 13 When replacing the indoor blower motor the set screw must be aligned and tightened with the motor shaft as shown in Figu...

Страница 21: ...g P49 If 24 volts is not present problem may be up stream of plug P49 Proceed to test 4 Multi Meter set to VAC 12 0 12 0 24 Multi Meter set to VAC problem is with the harness If voltage is not present problem may be may be with the integrated control Check for 120 volts across terminals CIRC and Neutrals on the integrated control If voltage is present problem is with the harness If voltage is not ...

Страница 22: ... 20 000 2 K two kilo ohms two thousand ohms 0 2 000 200 two hundred ohms 0 200 Motor Module Installation All replacement motor control modules look similar however each module is designed for a specific motor size It is very important to make sure that you are using the correct replacement motor control module USE OF THE WRONG MOTOR CONTROL MODULE MAY RESULT IN UNEXPECTED UNIT OPERATION 1 Verify e...

Страница 23: ... or CPVC Low temperature solvent cement is recommended during cooler weather Metal or plastic strapping may be used for vent pipe hangers Uniformly apply a liberal coat of PVC primer for PVC or use a clean dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket NOTE Canadian Applications Only Pipe fittings primer and solvent cement used to vent e...

Страница 24: ... Exhaust Accelerator Dia X Length Outdoor Exhaust Accelerator Dia X Length Flush Mount Kit 1 1 2 Concentric Kit 2 Concentric Kit 3 Concentric Kit 1 1 2 x12 2 x12 51W11 71M80 OR 44W92 69M29 OR 44W92 60L46 OR 44W93 030 045 1 1 1 2 YES YES YES 2 YES YES YES 2 1 2 YES YES YES 3 YES YES YES 070 1 1 1 2 YES YES YES 2 YES YES YES 2 1 2 YES YES YES 3 YES YES YES 090 2 YES YES YES YES 2 1 2 YES YES YES YES...

Страница 25: ...nes insulation if required In areas where piping penetrates joists or interior walls hole must be large enough to allow clearance on all sides of pipe through center of hole using a hanger When furnace is installed in a residence where unit is shut down for an extended period of time such as a vacation home make provisions for draining condensate collection trap and lines Figure 20 CHIMNEY OR GAS ...

Страница 26: ... lengths permitted Regardless of the diameter of pipe used the standard roof and wall terminations described in section Exhaust Piping Terminations should be used Exhaust vent termination pipe is sized to optimize the velocity of the exhaust gas as it exits the termination Refer to Table 15 In some applications which permit the use of several different sizes of vent pipe a combination vent pipe ma...

Страница 27: ...045 070 090 110 135 Standard or Concentric See Table 3 Intake or Exhaust 1 1 2 2 2 1 2 or 3 Furnace capacity 1 Which termination 2 Which needs most elbows 3 How many 4 Desired pipe size 5 What is the altitude 6 Use Table 11 through Table 13 to find max pipe length 7 Figure 22 Vent Pipe Diameter Sizing ...

Страница 28: ...78 78 74 9 36 21 70 55 23 92 92 73 73 69 10 31 16 65 50 18 87 87 68 68 64 Standard Termination at Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Capacity Capacity Capacity Capacity 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 1 25 20 n a n a n a 76 61 39 n a n a 110 95 63 38 n a 132 132 113 113 109 2 20 15 7...

Страница 29: ...81 74 74 65 9 28 13 60 45 19 76 76 69 69 60 10 23 8 55 40 14 71 71 64 64 55 Concentric Termination Elevation 4501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Capacity Capacity Capacity Capacity 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 1 20 15 n a n a n a 68 53 37 n a n a 100 85 59 34 n a 116 116 109 109 100 2 15 10 6...

Страница 30: ...53 53 49 10 21 6 50 50 28 68 67 48 48 44 Standard Termination Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Capacity Capacity Capacity Capacity 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 030 045 070 090 110 135 1 20 15 n a n a n a 66 51 29 n a n a 95 95 73 38 n a 113 112 93 93 89 2 15 10 61 46 24 90 90 68 33 108 107 88 88 84 3 1...

Страница 31: ... TRANSITION 1 1 2 2 6 MINIMUM Figure 23 TYPICAL EXHAUST PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON DIRECT VENT APPLICATIONS RIGHT HAND DISCHARGE SHOWN SIDE VIEW 45 MAX 45 MAX 2 2 2 2 or 2 12 max EXHAUST TRANSITION 3 2 2 EXHAUST TRANSITION 1 1 2 2 2 EXHAUST or NOTE 1 1 2 Vent Pipe Diameter Allowed Only on 030 045 070 Units DO NOT transition from larger to smaller pipe in horizontal runs of exhaus...

Страница 32: ...forward or to either side in the upflow position and either straight out or downward in the horizontal position The air intake piping must not terminate too close to the flooring or a platform Ensure that the intake air inlet will not be obstructed by loose insulation or other items that may clog the debris screen 2 If intake air is drawn from a ventilated attic Figure 27 or ventilated crawlspace ...

Страница 33: ...plications the vent termination is limited by local building codes In the absence of local codes refer to the current National Fuel Gas Code ANSI Z223 1 NFPA 54 in U S A and current CSA B149 Natural Gas and Propane Installation Codes in Canada for details Position termination according to location given in Figure 30 or Figure 39 In addition position termination so it is free from any obstructions ...

Страница 34: ...N A N A 2 1 2 in N A N A N A N A 7 N A 15 N A 22 N A N A N A 3 in N A N A N A N A N A N A 10 10 16 16 18 18 1 Refer to 99 Minimum Design Temperature table provided in the current edition of the ASHRAE Fundamentals Handbook 2 Poly Propylene vent pipe PP by Duravent and Centrotherm 3 Vent length in table is equivalent length Each elbow is equivalent to 5ft of straight pipe and should be included whe...

Страница 35: ...ches 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 6 inches 152mm for appliances 10 000 Btuh 3kw 12 inches 305mm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 3 feet 9m above if within 10 feet 3m horizontally 6 feet 1 8m 7 feet 2 1m 12 inches 305mm 1 In accordance with the current ANSI Z223 1 NFPA 54 N...

Страница 36: ...rations Minimum separation is 3 76 mm on roof terminations and 6 152 mm on sidewall terminations 3 On roof terminations the intake piping should terminate straight down using two 90 elbows see Figure 31 4 Exhaust piping must terminate straight out or up as shown A reducer may be required on the exhaust piping at the point where it exits the structure to improve the velocity of exhaust away from th...

Страница 37: ... 1 2 38mm accelerator provided on 71M80 44W92 kits for 045 and 070 models 12 305mm INTAKE AIR EXHAUST VENT Figure 37 Direct Vent Concentric Wall Termination 71M80 69M29 or 60L46 US 44W92 or 44W93 Canada 12 305mm Min above grade or average snow accumulation INTAKE AIR INTAKE AIR INTAKE AIR OUTSIDE WALL GRADE CLAMP Not Furnished FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT LARGER VENT PIPE SIZE T...

Страница 38: ... Clearance under veranda porch deck or balcony 12 Equal to or greater than soffit depth 3 feet 9m 12 3 feet 9m within a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 152mm for appliances 10 000 Btuh 3kw 12 inches 305mm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 3 feet 9m above if within 10 feet 3m horizontally 6 fe...

Страница 39: ...rect Vent Roof Termination Kit 15F75 or 44J41 UNCONDITIONED ATTIC SPACE 3 76MM OR 2 51MM PVC PROVIDE SUPPORT FOR EXHAUST LINES 12 305MM ABOVE AVE SNOW ACCUMULATION SIZE PER EXHAUST PIPE TERMINATION SIZE REDUCTION TABLE 3 If exhaust piping must be run up a side wall to position above snow accumulation or other obstructions piping must be supported every 24 inches 610mm When exhaust piping must be r...

Страница 40: ...ance above grade or average snow accumulation B Horizontal separation between intake and exhaust C Minimum from end of exhaust to inlet of intake D Exhaust pipe length E Wall support distance from top of each pipe intake exhaust 12 305 mm Min 12 305 mm Min 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 16 405 mm Max 6 152 mm Max 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 20 508 m...

Страница 41: ... glue all joints Glue the provided drain trap as shown in Figure 51 or Figure 52 Route the condensate line to an open drain Condensate line must maintain a 1 4 downward slope from the furnace to the drain 5 Figure 46 and Figure 47 show the furnace and evaporator coil using a separate drain If necessary the condensate line from the furnace and evaporator coil can drain together See Figure 48 throug...

Страница 42: ...reezing of condensate and blockage of drain line If this is not possible a heat cable kit may be used on the condensate trap and line Heating cable kit is available from Allied in various lengths 6 ft 1 8m kit no 26K68 and 24 ft 7 3m kit no 26K69 Figure 45 Condensate Trap Locations Unit shown in upflow position with remote trap Piping from furnace must slope down a minimum of 1 4 per ft toward tra...

Страница 43: ...l drains together the A C condensate drain outlet must be vented to relieve pressure in order for the furnace pressure switch to operate properly IMPORTANT Figure 49 Evaporator Coil Using a Common Drain Figure 50 Evaporator Coil Using a Common Drain Piping from furnace and evaporator coil must slope down a minimum 1 4 per ft toward trap ...

Страница 44: ... 2 inch PVC Pipe Not Furnished Drain Assembly for 3 4 inch Drain Pipe Condensate Drain Connection In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connection OptionalDrainPipingFromTrap DrainTrapAssembly Furnished DrainTrap Assembly with 1 2 inch Piping DrainTrap Assembly with 3 4 inch Piping 1 2 inch 3 4 inch 1 25 mm Min 2 50 ...

Страница 45: ...ow 1 2 inch PVC To Drain 90 Elbow 1 2 inch PVC Not Furnished 1 2 inch PVC Pipe Not Furnished Drain Assembly for 3 4 inch Drain Pipe 90 Street Elbow 1 2 inch PVC Not Furnished Condensate Drain Connection In Unit Adapter 1 2 inch slip X 1 2 inch mpt Not Furnished Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Drain Trap Assembly with 3 4 inch Piping Vent To Dra...

Страница 46: ...tivate the heating demand 5 Wait for the combustion air inducer to stop Set the thermostat to initiate a heating demand and again allow the burners to fire for approximately 3 minutes 6 Adjust the thermostat to deactivate the heating demand and again wait for the combustion air inducer to stop At this point the trap should be primed with sufficient water to ensure proper condensate drain operation...

Страница 47: ... the gas valve WARNING Gas supply piping should not allow more than 0 5 W C drop in pressure between gas meter and unit Supply gas pipe must not be smaller than unit gas connection Compounds used on gas piping threaded joints should be resistant to action of liquefied petroleum gases Testing Gas Piping In case emergency shutdown is required turn off the main shut off valve and disconnect the main ...

Страница 48: ...ns each unit should be checked separately with and without other units operating Supply pressure must fall within range listed in Table 18 Manifold Pressure Measurement Follow the steps below and use Figure 55 as a reference Gas manifold Kit 10L34 provides additional components if needed 1 Connect the test gauge positive side to manifold pressure tap on gas valve 2 Tee into the gas valve regulator...

Страница 49: ... 0 NOTE A natural to L P propane gas changeover kit is necessary to convert this unit Refer to the changeover kit installation instruction for the conversion procedure Table 18 Supply Line and Manifold Pressure at All Altitudes inches w c for 1 Through 3 Units Capacity Gas Manifold Pressure in w g Supply Line Pressure in w g 0 10 000 ft 0 4500 ft 4501 5500 ft 5501 6500 ft 6501 7500 ft 7501 10000 f...

Страница 50: ...ltage terminal block on the integrated control See Figure 56 A wide variation in the voltage between Line Neutral and C as a function of load indicates a poor or partial ground Compare the readings to Table 21 If the readings exceed the maximum shown in Table 21 make repairs before operating the furnace 2 In addition measure the AC voltage from Line Hot to Line Neutral spade terminals on the integ...

Страница 51: ...ply and return air plenums Insert manometer hose flush with inside edge of hole or insulation Seal around the hose with permagum Connect the zero end of the manometer to the discharge supply side of the system On ducted systems connect the other end of manometer to the return duct as above 3 With only the blower motor running and the evaporator coil dry observe the manometer reading Adjust blower ...

Страница 52: ...cy glass foam filters If the pressure drop is too great system capacity and performance may be reduced The pressure drop may also cause the limit to trip more frequently during the winter and the indoor coil to freeze in the summer resulting in an increase in the number of service calls Before using any filter with this system check the specifications provided by the filter manufacturer IMPORTANT ...

Страница 53: ... may be necessary to cut the exiting exhaust pipe for removal of the fitting 12 Mark and disconnect all combustion air pressure tubing from cold end header collector box 13 Mark and remove wires from pressure switch assembly Remove the assembly Keep tubing attached to pressure switches 14 Disconnect the plug from the combustion air inducer Remove two screws which secure combustion air inducer to c...

Страница 54: ...e to certain metals Carefully rinse piping thoroughly after leak test has been completed Do not use matches candles flame or other sources of ignition to check for gas leaks CAUTION Cleaning the Burner Assembly if needed 1 Turn off electrical and gas power supplies to furnace Remove upper and lower furnace access panels 2 Disconnect the wires from the gas valve 3 Remove the burner box cover if equ...

Страница 55: ...508093 01 Issue 2033 Page 55 of 59 Wiring Diagram ...

Страница 56: ...GIZED GAS VALVE OFF COMBUSTION AIR INDUCER ON INDOOR BLOWER ON HEATING SPEED LED FLASHES CODE 11 PRESSURE SWITCH CLOSED GAS VALVE OFF COMBUSTION AIR INDUCER OFF INDOOR BLOWER OFF WITH DELAY Sequence holds until pressure switch opens or thermostat resets control NO NO YES YES IS VOLTAGE ABOVE 70 VOLTS LED FLASHES CODE 13 LOW LINE VOLTAGE CONTROL WILL NOT RESPOND TO A CALL FOR HEATING UNTIL VOLTAGE ...

Страница 57: ...FF WITH DELAY IS 60 MINUTE RESET PERIOD COMPLETE YES 4 SECONDS YES HAS CONTROL RESET IGNITION SEQUENCE FOUR TIMES FLAME SIGNAL 1 5 MICROAMPS OR GREATER YES YES YES ROLLOUT SWITCH CLOSED LED FLASHES CODE 8 ROLLOUT SWITCH OPEN GAS VALVE POWER OFF COMBUSTION AIR INDUCER POWER ON INDOOR BLOWER ON SEQUENCE HOLDS UNTIL ROLLOUT SWITCH IS RESET AND MAIN POWER IS INTERRUPTED OR THERMOSTAT IS CYCLED OFF ON ...

Страница 58: ...ONITORED CONTINUOUSLY IS ROLLOUT SWITCH CLOSED LED SLOW FLASH RATE REMAINS UNCHANGED THROUGHOUT COOLING CYCLE THERMOSTAT CALLS FOR COOLING COMPRESSOR CONTACTOR AND SYSTEM FAN ENERGIZED WITH 2 SECOND DELAY COOLING SPEED COMPRESSOR OFF THERMOSTAT OPENS SYSTEM FAN AND EAC TERM OFF WITH 45 SECOND DELAY NO NO LED FLASHES CODE 8 ROLLOUT SWITCH OPEN GAS VALVE OFF COMBUSTION AIR INDUCER ON INDOOR BLOWER O...

Страница 59: ...G THERMOSTAT OPENS SYSTEM FAN SWITCHED TO COOL SPEED EAC TERM REMAINS ON THERMOSTAT OPENS MANUAL FAN SELECTION MADE AT THERMOSTAT CONTROL G ENERGIZES SYSTEM FAN AT FAN SPEED EAC TERM ENERGIZED NO YES YES NO SYSTEM FAN SWITCHES TO HEAT SPEAD AFTER 30 SECOND DELAY EAC AND HUM TERMINALS REMAIN ON SYSTEM FAN CONTINUES FAN SPEED WITHOUT INTERRUPTION EAC TERMINAL REMAIN ON HUM TERMINALS ARE ENERGIZED WI...

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