Lennox ML196UH030XE36B Скачать руководство пользователя | Manualshive

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Page 7

PARTS IDENTIFICATION

TOP CAP

BURNER BOX

ASSEMBLY

DuralokPlus

TM

HEAT EXCHANGER

ASSEMBLY

CONTROL BOX

former, circuit breaker and interlock switch)

COMBUSTION AIR

INDUCER

BURNER

ACCESS

PANEL

COMBUSTION

AIR PRESSURE

SWITCH

PRIMARY LIMIT

GAS VALVE

BLOWER

ASSEMBLY

FLEXIBLE NO-HUB

EXHAUST COLLAR

COLD END

HEADER BOX

BAG ASSEMBLIES

(shipping location)

BLOWER ACCESS

PANEL

FIGURE 1

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Содержание ML196UH030XE36B

Страница 1: ...ory equipped for use with natural gas A kit is available for conversion to LP Propane operation All ML196UHE units are equipped with a hot surface ignition system The gas valve is redundant to assure...

Страница 2: ...Utilization Efficiency based on DOE test procedures and according to FTC labeling regulations Isolated combustion system rating for non weatherized furnaces SPECIFICATIONS Gas Heating Performance Mod...

Страница 3: ...98 Size of filter in 18 x 25 x 1 20 x 25 x 1 25 x 25 x 1 Side Return Single 44J22 44J22 44J22 Ten Pack 66K63 66K63 66K63 Size of filter in 16 x 25 x 1 16 x 25 x 1 16 x 25 x 1 NIGHT SERVICE KIT Night S...

Страница 4: ...137 625 125 0 70 1210 395 1075 300 950 240 640 146 565 130 0 80 N A N A 1030 305 915 250 595 148 535 135 ML196UH030XE36B PERFORMANCE Less Filter External Static Pressure in w g Air Volume Watts at Va...

Страница 5: ...cfm Watts 0 00 1470 313 1355 233 1195 171 975 92 895 50 0 10 1445 325 1330 249 1170 184 940 101 855 63 0 20 1430 335 1300 270 1150 196 885 109 735 75 0 30 1385 350 1265 275 1110 206 870 122 680 82 0...

Страница 6: ...5 385 1165 290 0 80 1950 795 1670 580 1485 460 1360 390 1140 293 1895 790 1650 590 1465 470 1335 395 1120 295 ML196UH135XE60D PERFORMANCE Less Filter External Static Pressure in w g Air Volume Watts a...

Страница 7: ...EMBLY CONTROL BOX former circuit breaker and interlock switch COMBUSTION AIR INDUCER BURNER ACCESS PANEL COMBUSTION AIR PRESSURE SWITCH PRIMARY LIMIT GAS VALVE BLOWER ASSEMBLY FLEXIBLE NO HUB EXHAUST...

Страница 8: ...r T1 The breaker is rated at 3A at 32V If the current exceeds this limit the breaker will trip and all unit opera tion will shutdown The breaker can be manually reset by pressing the button on the fac...

Страница 9: ...sor 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...

Страница 10: ...es into Watchguard Flame Failure mode After a 60 minute reset period the integrat ed control will begin the ignition sequence again Fan Time Control Ignition Control 103217 03 Heating Fan On Time The...

Страница 11: ...rtbeat is indicated by 1s on 1s off It is used for idle continuous fan and cool modes Note 2 Error codes are indicated by a rapid flash the LED flashes X times at second on second off remains off for...

Страница 12: ...6UHE units use an aluminized steel primary and stainless steel secondary heat exchanger assembly Heat is transferred to the air stream from all surfaces of the heat exchanger The shape of the heat exc...

Страница 13: ...hrough the flame and sensing electrode The ig nition control allows the gas valve to remain open as long as flame signal is sensed NOTE The ML196UHE is polarity sensitive Make sure that the furnace is...

Страница 14: ...icroAmps 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...

Страница 15: ...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...

Страница 16: ...ducer orifice to insure 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...

Страница 17: ...d end header box are negative How sure 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 se...

Страница 18: ...tial pressure across the pressure switch Check for restricted inlet vent Remove all block age Check for proper vent sizing and run length See table 13 Wrong pressure switch installed in the unit or pr...

Страница 19: ...ltage 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 cri...

Страница 20: ...peed tap used for continuous fan 1 2 3 4 or 5 on input plug 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...

Страница 21: ...ximately the same resistance within an ohm 3 Check to see if the blower wheel spins freely Motor Test FIGURE 19 TABLE 9 Scale Measurement range in words ohms 2 M two megohm two million ohms 0 2 000 00...

Страница 22: ...PolyPro by Duravent InnoFlue by Centrotherm UL 1738 CERTIFIED GAS VENTING SYSTEM IPEX System1738 Schedule 40 PVC Pipes and Fittings UL1738 IPEX System1738 PVC FGV Cement Primer Not approved as of 12...

Страница 23: ...ermination kits 30G28 44W92 4493 and 81J20 are certified to ULC S636 for use in Canada only 5 See table 8 for vent accelerator requirements 6 Requires field provided 2 to 1 1 2 reducer Joint Cementing...

Страница 24: ...vacation home make provisions for draining condensate collection trap and lines If replacing a furnace which was commonly vented with another gas appliance the size of the existing vent pipe for that...

Страница 25: ...combination vent pipe may be used Contact Lennox Application Department for assis tance in sizing vent pipe in these applications NOTE The exhaust collar on all models is sized to ac commodate 2 Sched...

Страница 26: ...43 123 122 103 103 65 5 n a 61 46 24 95 95 73 38 118 117 98 98 60 6 56 41 19 90 90 68 33 113 112 93 93 55 7 51 36 14 85 85 63 28 108 107 88 88 50 8 46 31 n a 80 80 58 23 103 102 83 83 45 9 41 26 75 7...

Страница 27: ...100 84 49 116 116 109 109 65 3 10 n a 63 48 32 12 95 95 79 44 111 111 104 104 60 4 n a 58 43 27 n a 90 90 74 39 106 106 99 99 55 5 53 38 22 85 85 69 34 101 101 94 94 50 6 48 33 17 80 80 64 29 96 96 89...

Страница 28: ...10 n a 61 46 24 n a 90 90 68 33 108 107 88 88 50 4 n a 56 41 19 85 85 63 28 103 102 83 83 45 5 51 36 14 80 80 58 23 98 97 78 78 40 6 46 31 9 75 75 53 18 93 92 73 73 35 7 41 26 n a 70 70 48 13 88 87 6...

Страница 29: ...r pipe in horizontal runs of exhaust pipe Exhaust 6 Min FIGURE 25 SIDE VIEW 2 2 2 or TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON DIRECT VENT APPLICATIONS RIGHT HAND DISCHAR...

Страница 30: ...e screen to route the intake piping as shown in FIGURE 27 or FIGURE 28 Maintain a minimum clearance of 3 76mm around the air intake opening The air intake opening with the protective screen should alw...

Страница 31: ...and the flue gases are discharged to the out doors The ML196UHE is then classified as a direct vent Category IV gas furnace In both Non Direct Vent and Direct Vent applications the vent termination i...

Страница 32: ...15 N A 22 N A 3 in N A N A 2 2 10 10 16 16 13 13 1Refer to 99 Minimum Design Temperature table provided in the current edition of the ASHRAE Fundamentals Handbook 2 Poly Propylene vent pipe PP by Dur...

Страница 33: ...al 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 ap...

Страница 34: ...feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 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...

Страница 35: ...ssure zones the maximum separation requirement of intake and exhaust pipe DOES NOT apply 3 On roof terminations the intake piping should terminate straight down using two 90 elbows See FIGURE 34 4 Exh...

Страница 36: ...ROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION INTAKE Accelerator not required for 3 concentric 12 305mm FIGURE 38 12 305mm Min above grade or average snow ac cumulat...

Страница 37: ...ective shield is recommended The shield should be constructed using wood sheet metal or other suitable material All seams joints cracks etc in affected area should be sealed using an appropriate seala...

Страница 38: ...OVIDE SUPPORT FOR EXHAUST LINES 12 305mm ABOVE AVE SNOW ACCUMULATION FIGURE 43 Crawl Space and Extended Horizontal Venting Lennox provides kit 51W18 USA kit 15Z70 Canada to install 2 or 3 PVC exhaust...

Страница 39: ...drain Condensate line must maintain a 1 4 downward slope from the furnace to the drain Unit shown in upflow position with remote trap 5 max T o Drain PV CPipeOnly FieldProvidedVent Min 1 AboveCondens...

Страница 40: ...sed on the condensate trap and line Heating cable kit is available from Lennox in various lengths 6 ft 1 8m kit no 26K68 and 24 ft 7 3m kit no 26K69 HorizontalFurnace4 Min to 5 Max above condensatedra...

Страница 41: ...FIGURE 52 Furnace with Evaporator Coil Using a Common Drain Unit shown in horizontal left hand discharge position Condensat e Drain Connection 4 min to 5 Max above condensatedrain connection 5 max PV...

Страница 42: ...ction In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connection OptionalDrainPipingFromTrap DrainTrapAssembly Furnished DrainTr...

Страница 43: ...he trap should be primed with sufficien water to ensure proper condensate drain operation WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage...

Страница 44: ...Gas Flow Approximate TABLE 17 GAS METER CLOCKING CHART ML196 Unit Seconds for One Revolution Natural LP Propane 1 cu ft Dial 2 cu ft Dial 1 cu ft Dial 2 cu ft Dial 030 120 240 300 600 045 80 160 200...

Страница 45: ...e maximum carbon monoxide reading should not exceed 100 ppm TABLE 18 ML196UHE Unit CO2 Nat CO2 LP 030 7 5 8 5 8 2 9 5 045 070 090 110 135 H High Altitude NOTE In Canada certification for installations...

Страница 46: ...he conversion procedure TABLE 20 Conversion Kit and Pressure Switch Requirements at Varying Altitudes ML196 Model Natural to LP Propane High Altitude Natural Burner Orifice Kit High Altitude LP Propan...

Страница 47: ...s a function of load indicates a poor or partial ground Compare the readings to the table below If the readings exceed the maximum shown in TABLE 21 make repairs before operating the furnace 2 In addi...

Страница 48: ...urn 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 O...

Страница 49: ...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 man...

Страница 50: ...essure 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 col...

Страница 51: ...ssembly 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 equipp...

Страница 52: ...or heat can continue 5 A92 integrated control energizes B6 combustion air inducer S18 combustion air pressure switch closes Once S18 closes a 15 second pre purge follows 6 A92 integrated control energ...

Страница 53: ...ALVE ENERGIZED 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 S...

Страница 54: ...RESET IGNITION SEQUENCE FOUR TIMES FLAME SIGNAL 1 5 MICROAMPS OR GREATER YES YES YES ROLLOUT SWITCH CLOSED LED FLASHES CODE 8 ROLLOT SWITCH OPEN GAS VALVE POWER OFF COMBUSTION AIR INDUCER POWER ON IND...

Страница 55: ...ITCH 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 EAC TERM ENERGIZ...

Страница 56: ...AN 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...

Страница 57: ...Page 57...

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