LENNOX Air Handler (indoor Blower&evap) Manual L0805377
User Manual: LENNOX LENNOX Air Handler (indoor blower&evap) Manual LENNOX Air Handler (indoor blower&evap) Owner's Manual, LENNOX Air Handler (indoor blower&evap) installation guides
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LENNOX INSTALLATION INSTRUCTIONS ,?,_2003 Lennox (ndustries inc. Dallas, Texas, USA Merit® CB28UH UPFLOW HORIZONTAL 504,739M 05/03 TeCh nical blications BLOWER COIL UNITS Litho CB28UH Series Units ........................... General ....................................... Shipping & Packing List ......................... Unit Dimensions ............................... Requirements .................................. Installation .................................... Field Piping Connections ........................ Condensate Drain .............................. Filters ......................................... Sealing the Unit ................................ Blower Speed Adjustments ...................... Electrical ..................................... System Wiring Diagrams ....................... CB28UH Upflow Position (WithOptionalElectncHeat) U.S.A. 1 1 1 2 4 4 6 6 7 7 7 10 11 RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE IMPORTANT The Lennox Merit® CB28UH series blower coil units are designed for installation with optional field-installed electric heat and a matched remote outdoor unit, These units are for indoor installation only. The CB28UH units are designed for upflow/horizontal positional installations and are shipped (completely assembled) from the factory for upflow and horizontal righthand discharge. • , WARNING These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before installation. Check equipment for shipping damage. If you find any damage, immediately contact the last carrier. CB28UH Series Package 1 of I contains 1 - Assembled blower coil unit 05/03 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII 504,739M IIIIIIIIIIIIIIIIIIIIIIIIIIIIIII DETAIL OF PIPING PLATE SUPPLY 3/4 ...... ......................../ 3/4 (19) (_ CONDENSATE DRAINS (2) / CB28UH UPFLOW POSITION mo_izontol) A,N CONDENSATE DRAIN AUXILIARY DRAIN ON LEFT MAIN DRAIN ON RIGHT (Upfl ow) LINE VOLTAGE INLETS LOW VOLTAGE INLETS Top and ,.,_!ght Side) VIEW (Top and Left Side) TOP Model No. AUX,_,AR%'/--T ......... CONDENSATE CB28UH-018/024 CB28UH-030 5/8 J_ c-_ (16) / I OPTIONAL ELECTRIC HEAT f mm inch mm inch A 45-1/4 1149 49-1/4 1251 52-1/2 1334 B 16-1/4 413 21-1/4 540 21-1/4 540 C 20-5/8 524 20-5/8 524 22-5/8 575 D 14-3/4 375 19-3/4 502 19-3/4 502 E 19 483 19 483 21 533 F 15 351 20 508 2O 508 / i I / SUCTION L,NE _=_ I LIQUID LINE i , o,o (16) Return F Air Lo,o FRONT VIEW (16) mm (Field Installed) FILTER ACCESS CB28UH-048 CB28UH-060 inch DRAIN (Upflow) I CB28UH-036 CB28UH-042 5/8 Return Air I (25) (16) E ---------_ '_SlDE VIEW Torque Table Part Recommended Torque Blower Motor Bolts 48 in./Ibs. 5.42 NM Blower Set Screw 155 in./Ibs. 17.51 NM Drain Pan Plug 84 in./Ibs. 9.49 NM TXV Chatleff Nuts 20 ft./Ibs. 27.11 NM Sheet Metal 16 in Jibs. 1.80 NM Machine Screws #10 28 in./Ibs. 3.16 NM Page 2 DETAIL OF PIPING PLATE CB28UH HORIZONTAL POSITION (RIGHT-HAND AIR DISCHARGE) FILTER C I 1;;, AUXILIARY CONDENSATE DRAIN (Horizontal) I ( MAN 5 I\ ) LIQUID LINE C ONDDREN SATE (Horizontal) I SUCTION OPTIONAL ELECTRIC (Field installed) LINE HEAT TOP VIEW \ LINE VOLTAGE INLETS 3/4 11-1/16 (19) A \ 4 \ (16) 518 all= _I- Side) (Top and Right f \ 5/8 1 (16) (25) \ D B \ FILTER ACCESS 5/8 (16) END 3/4 (19) f \ LOW VOLTAGE INLETS (Bottom and Right Side) VIEW FRONT VIEW CB28UH HORIZONTAL POSITION (LEFT-HAND AIR DISCHARGE) END VIEW DETAIL OF PIPING PLATE I- .......... FILTER 1 C OPTIONAL (Field 3/4 11-1/t6 LOW ELECTRIC Installed) HEAT SUCTION TOP VOLTAGE LINE LIQUID LINE (19) 3/4 f INLETS (Top and si8 -=114 LeftSide)/ (16) .__1 / VIEW (19) MAIN --II ;l#p A f DRAIN AUXILIARY ON DRAIN RIGHT ON LEFT FILTER D MAIN B CONDENSATE DRAIN ............ 3/4 I LINE V )LTAGE INLETS (Bottom and Left Side) (19) 518 (16) 518 (16) AUXILIARY DRAIN END VIEW Model No. ( 215) (Horizontal) FRONT A END VIEW B C D VIEW E F inch mm inch mm inch mm inch mm inch mm inch mm CB28UH-018/024 CB28UH-030 45-1/4 1149 16-1/4 413 20-5/8 524 14-3/4 375 19 483 15 351 CB28UH-036 CB28UH-042 49-1/4 1251 21-1/4 540 20-5/8 524 19-3/4 502 19 483 20 508 CB28UH-048 CB28UH-060 52-1/2 1334 21-1/4 540 22-5/8 575 19-3/4 502 21 533 20 508 Page 3 UPFLOW CONFIGURATION Installation ofLennoxblowercoilunitswithorwithoutoptionalelectricheatmustconform withstandards intheNationalFireProtection Association(NFPA)"Standardfor Installation of Air Conditioning andVentilation Systems NFPANo,90A,"and"Standardfor Installation of ResidenceTypeWarmAir HeatingandAir Conditioning SystemsNFPANo.90B,"manufacturer's installation instructionsandlocalmunicipalbuildingcodes, Thisunitiscertified forinstallation clearances tocombustiblematerialas listedontheunitratingplate, 9 HORIZONTAL DRAIN PAN* UPFLOW/ DRAIN PAN .e *FOR OPTIMUM PERFORMANCE, REMOVE HORIZONTAL DRAIN PAN. CB28UHunitsarefactory-configured forupflowor horizontalright-handdischargeinstallation,Forhorizontal left-handdischarge, somefieldmodification is required. FIGURE 1 Horizontal Right-Hand Discharge Application 1 -Remove access panel. Remove corrugated padding from the space between the blower and coil assembly. ACAUTION 2 -No further adjustment is necessary. Set unit so that it is sloped 1/4 inch toward the drain pan end of the unit. Upflow Application 1 - Remove access panel. Remove corrugated padding from the space between the blower and coil assemblies. NOTE - For horizontal applications, an auxiliary drain pan is required. Refer to local codes. NOTE - For horizontal applications in high humidity areas, seal around the exiting drain pipe, liquid line and suction line to prevent infiltration of humid air. RIGHT-HAND DISCHARGE CONFIGURATION NO ADJUSTMENT 2 -To ensure proper operation, remove the horizontal drain pan from units in upflow configurations, UPFLOW/DRAIN PAN IS NECESSARY HORIZONTAL 3 -Place unit in desired location. Make sure that unit is level. Connect return and supply air plenums as required using sheet metal screws, See figure 1, 4 - Mount units that have no retum air plenum on a stand at least 14" from the floor for proper air return. Lennox offers an optional upflow unit stand. (45K31 for CB28UH-018, 024, 030; 45K32 for CB28UH-036 through -060.) DRAIN PAN FIGURE 2 Page 4 3 -If theunitis to besuspended, it mustbesupported alongthe entirelengthof the cabinet.If youusea strap,attacha pieceofangleironorsheetmetaltothe unit(eitheraboveor below)so thatthefulllengthof thecabinetis supported. Usesecuringscrewswhich arenolongerthan1/2inchtoavoiddamaging thecoil orfilter,Seefigure3.Connectthereturnandsupply airplenumsas requiredusingsheetmetalscrews, SUSPENDING HORIZONTAL UNIT 1/2 in Screws max. Electrical Inlet Clearance 8 -Rotate top cap 180 ° front to back and align with unused screw holes, Holes must align with front and back coil end plates. Note that top cap has a 45 ° bend on one side and 90° bend on the other. The 90 ° bend must be on the same side as the horizontal drain pan. See figures 4 and 5, NOTE - Use extreme care when re-installing screws into coil end plate engaging holes. Misaligned screws may damage coil. 9 -Remove the condensate shield from the right front and install it on the left front as shown in figure 4, FIELD MODIFICATION FOR LEFT-HAND DISCHARGE SHEET METAL I tl " I I CABINET I I II 90 ° BEND FRONT VIEW END VIEW FIGURE 3 CAUTION COIL SHOWN IN UP-FLOW POSITION FOR EASY CONVERSION FIGURE 4 / Horizontal Left-Hand Discharge Application NOTE - For horizontal applications, an auxiliary drain pan is required. Refer to local codes. 1 - Remove access panel. Remove corrugated padding from the space between the blower and coil assembly before operation. 2-Pull coil assembly from unit, Pull off the horizontal drain pan, 3 -Remove drain plugs from back drain holes on horizontal drain pan and reinstall them on front holes. BACK COIL END SEAL 90 ° BEND FIGURE 5 10 -From the upflow position, flip cabinet 90 ° to the left and set into place. Put coil assembly back in place, Secure coil in place by putting the cabinet support rail back in place, See figures 4 and 6, LEFT-HAND DISCHARGE 4 -Rotate drain pan 180° front to back and install it on the opposite side of coil. Follow the instruction steps with the corresponding numbers in figure 4. CONFIGURATION SECURING FLANGE ON CABINET SUPPORT RAIL HORIZONTAL DRIP SHIELD 5-Remove screws from top cap, Remove horizontal drip shield screw located in the center of the back coil end seal. See figure 4, 6 -Rotate horizontal drip shield 180 ° front to back. 7-Remove plastic plug from left hole on coil front end seal and reinstall plug in back hole. Re-install horizontal drip shield screw in front coil end seal, Drip shield should drain downward into horizontal drain pan inside coil, See fgure 4, HORIZONTAL DRAIN PAN FIGURE 6 Page 5 NOTE - For horizontal applications in high humidity areas, seal around the exiting drain pipe, liquid line and suction line to prevent infiltration of humid air. 11 -Knock out drain seal plate from access door. Secure plate to cabinet front flange with screw provided, 12 -Flip access door and replace it on the unit, 13 -Set unit so that it is sloped 1/4 inch toward the drain pan end of the unit, Connect return and supply air plenums as required using sheet metal screws, 14 -If you are going to suspend the unit, the entire length of the cabinet must be supported. If you use a chain or strap, attach a piece of angle iron or sheet metal to the unit (either above or below it), so that the full length of the cabinet is supported. Use securing screws which are no longer than 1/2 inch to avoid damaging the coil or filter, See figure 3. Use sheet metal screws to connect the return and supply air plenums, All CB28UH coils are equipped with a factory-installed, internally mounted expansion valve. Use Lennox L15 (sweat) series line sets as shown in table 1 or use fieldfabricated refrigerant lines, L10 (flare) line sets may be used by cutting off flare nut. Refer to the piping section of the Lennox Unit Information Service Manual for proper size, type and application of field-fabricated lines, TABLE 1 REFRIGERANT LINE KITS CB28UH LIQUID VAPOR L15 UNIT LINE LINE LINE SETS 3/8 in 5/8 in (8 ram) (16 ram) -018/-024 L15-26 must be in place to guard against damage to the paint, 4 - With heat shield in place, sweat in the suction line connection to the line set. After procedure is completed, remove heat shield, 5 - Place heat shield against piping plate and around the liquid line connection, Sweat in the liquid line connection to the line set, 6 - Refer to instructions provided with outdoor unit for leak testing, evacuating and charging procedures. Connect main condensate drain and route downward to an open drain or sump, Do not connect drain to a closed waste system, Refer to figure 7 for typical condensate trap configuration, TYPICAL CONDENSATE MINIMUM 1 INCH (25 ram) PITCH PER 10 FEET J (3048 ram) OF LINE _ Trap must be deep difference COIL DRAIN PAN enough (Generally, DRAIN CONNECTION PIPE DIAMETER DIFFERENCE to offset -042/-048 -060 static FIGURE 7 It is recommended that the auxiliary drain be connected to a drain line for all units. If auxiliary drain is not connected, it must be plugged with provided cap, See figure 8 for auxiliary and main drain locations, LEFT-HAND DISCHARGE 20 ft, - 50 ft, UPFLOW RIGHT-HAND DISCHARGE (6 m - 15 m) [ -030/-036 maximum 2 inches [51ram] minimum). I L15-41 3/8 in 3/4 in, (10 mm) (19 mm 3/8 in 7/8 in. (10 ram) (22 ram) 3/8 in 1-1/8 in, FIELD (10 mm) (29 ram) FABRICATED 20 ft, - 50 ft, (6 m - 15 m) L15-65 ool oo % .............................................. 30 ft. - 50 ft, (9 m - 15 m) NO TE - CB28UH series evaporators use nitrogen or dry air as a holding charge. If there is no pressure when the rubber plugs are removed, check the coil or line set for leaks before installing. After installation, pull a vacuum on the line set and coil before releasing the unit charge into the system. AUXILIARY DRAIN ON LEFT MAIN DRAIN ON RIGHT FIGURE 8 The following practices are recommended to ensure condensate removal: 1 -Drain piping should not be smaller than the drain connections at drain pan, 2 -A trap must be installed in the main drain line, 1 - Use a wet rag to protect TXV bulb (or remove it) when brazing suction line, 3 -The trap must be deep enough to offset the difference in static pressure between drain pan and atmosphere, Generally, two inches is satisfactory for medium static applications. 2 - Be aware of filter access panel when connecting lines, Filter must be accessible, 4 -Horizontal runs must be sloped 1 inch per 10 feet of drain line to offset friction, 3 - Place heat shield (damp rag) against the piping plate and around the suction line connection, Heat shield 5 -An open vent in drain line will sometimes be required to prevent vapor lock. Page 6 6 -Drainsshouldbeconstructed ina mannertofacilitate futurecleaningandnot interferewithfilteraccess. Seefigure7. 7 -Auxiliarydrainshouldrunto an areawherehomeownerwill noticeit draining.Refertolocalcodes. 8 -Alldrainconnections thatarenotusedduringinstallationmustbeplugged andproperlytorquedto7ft.Ibs. topreventleaks. TABLE 2 FILTER DIMENSIONS FILTER SIZE Inches (mm) UNIT MODEL NO. CB28UH-018/-024 15 x 20 (381 x 508) CB28UH-030/-042 20 x 20 (508 x 508) CB28UH-048/-060 20 x 22 (508 x 559) It is very important to seal the unit so that warm air is not allowed into the cabinet. Warm air introduces moisture, which results in condensation problems. This is especially important when the unit is installed in an unconditioned area. A IMPORTANT Make sure the liquid line and suction line entry points are sealed with either the provided material or with Permagum. Permagum may also be used to seal around the main and auxiliary drains and around open areas of electrical inlets. Each unit includes a factory-installed filter. Note that filter access cover fits over access panel. Minimum Blower Speeds (With Electric Heaters) Filters should be inspected monthly and must be cleaned or replaced when dirty to assure proper operation. This unit is equipped with standard throw-away type filters For the minimum allowable speed for the CB28UH series units with electric heat, refer to the ECB29 installation instructions. which should be replaced when they become dirty. Air Volume Adjustment To remove filter, take off filter access door, slide filter out of the guides on either side of cabinet, insert new filter and replace the filter access door. See table 2 for replacement filter sizes. Blower speed selection is accomplished by changing the taps at the harness connector at the blower motor. Refer to unit wiring diagram in figure 9. Refer to tables 3 through 8 for blower performance data. TABLE 3 CB28UH-018/024 BLOWER PERFORMANCE Air Volume External Static Pressure (208/230v) and Motor Watts at Specific Low Blower Taps Medium High Pa cfm L/s Watts cfm L_ Watts cfm L/s Watts .00 0 700 330 245 895 420 310 1030 485 375 .05 10 690 325 240 875 415 305 1010 475 370 .10 25 680 320 235 865 410 300 990 470 365 .15 35 665 315 230 850 400 290 970 460 355 .20 50 655 310 225 830 390 285 955 450 350 .25 60 640 300 220 810 385 280 925 440 345 .30 75 625 295 220 795 375 270 900 425 335 .40 100 595 280 210 750 355 255 850 400 320 .50 125 555 260 195 700 330 240 800 380 305 .60 150 510 240 185 640 300 225 725 340 290 .70 175 395 185 165 ............ 620 295 265 .75 185 ........................ 570 270 255 in. w.g. NOTE -AII air data is measured external to unit with air filter in place. Electric heaters have no appreciable air resistance. Page 7 CB28UH-030 External Static Pressure Pa cfm Low L/s ,00 0 1015 .05 10 995 .10 25 .15 35 .20 TABLE 4 BLOWER PERFORMANCE (208/230v) Air Volume and Motor Watts at Specific Blower Taps Wa_s cfm High L/s 535 410 1230 580 450 530 400 1205 570 445 1095 515 390 1190 560 440 1075 505 380 1165 550 430 345 1050 495 375 1140 540 425 435 335 1025 485 365 1105 520 415 425 325 1005 475 355 1080 510 405 860 405 305 950 450 335 1025 485 390 800 380 285 890 420 315 960 450 370 150 740 350 265 810 385 290 875 415 350 .70 175 670 315 240 735 345 270 790 375 330 .75 185 610 290 225 675 320 255 725 340 315 Watts cfm 480 385 1135 470 375 1120 980 465 365 960 455 355 50 945 445 .25 6O 925 .30 75 900 .40 100 .50 125 .60 in. w.g. Medium L_ Watts NOTE-Att air data is measuredextemaIto unitwith air filter in place.Electricheatershave no appreciableair resistance. TABLE CB28UH-036 5 BLOWER PERFORMANCE (208/230v) Air Volume and Motor Wa_s at Specific Blower Taps External Static Pressure Low Medium High in. w.g. Pa cfm L/s Watts cfm L_ Watts cfm L/s Watts .00 0 935 440 420 1145 540 510 1505 710 655 .05 10 930 440 415 1140 535 500 1485 700 640 .10 25 925 435 410 1130 535 490 1475 695 630 .15 35 915 435 395 1125 530 480 1455 685 615 .20 50 910 430 390 1115 525 475 1435 680 600 .25 60 905 425 380 1110 525 465 1420 670 585 .30 75 900 425 370 1100 520 455 1395 660 570 .40 100 885 415 355 1080 510 430 1350 640 540 .50 125 865 410 335 1060 500 415 1300 615 510 .60 150 845 400 315 1030 485 390 1235 585 480 .70 175 820 390 300 ............ 1160 550 455 .75 185 ........................ 1015 480 425 NOTE -Att air data is measured extemaIto unitwith air filter in place.Electricheatershave no appreciableair resistance. CB28UH-042 BLOWER TABLE 6 PERFORMANCE (208/230v) Air Volume and Motor Wa_s at Specific Blower Taps External Static Pressure Low Medium High Pa cfm L/s Watts cfm L_ Watts cfm L/s Watts .00 0 1295 610 520 1520 720 595 1775 840 730 .05 10 1275 605 510 1505 710 585 1750 825 720 .10 25 1255 590 495 1480 700 570 1720 810 710 .15 35 1230 580 480 1455 685 555 1690 795 700 .20 50 1215 575 470 1430 675 540 1650 780 685 .25 60 1195 565 455 1405 665 525 1620 765 675 .30 75 1170 555 440 1380 650 515 1595 750 660 .40 100 1125 530 415 1320 625 485 1515 715 635 .50 125 1065 500 385 1260 595 460 1420 670 605 .60 150 1005 475 360 1175 555 425 1325 625 575 .70 175 910 430 330 1075 505 395 1210 570 545 .80 200 ........................ 900 425 480 in, w.g. NOTE- All air data is measuredexternal to unit with air filter in place. Electric heaters have no appreciable air resistance. Page 8 TABLE 7 BLOWER PERFORMANCE CB28UH-048 (208/230v) Air Volume and Motor Wa_s at Specific Blower Taps External Static Pressure Pa cfm Low L/s Wa_s cfm High L/s Wat_ .00 0 1590 .05 10 1570 845 805 2055 970 1005 835 790 2035 960 995 .10 25 .15 35 1750 825 785 2005 945 980 1730 815 775 1980 935 .20 970 640 1710 805 765 1945 920 955 700 635 1685 795 755 1915 905 940 690 625 1660 785 745 1885 890 930 1415 670 615 1610 760 725 1820 860 900 1370 645 600 1550 730 705 1750 825 875 150 1310 620 580 1490 705 685 1670 790 845 .70 175 1240 585 560 1405 665 660 1575 745 820 .75 185 1210 570 550 1360 640 645 1520 720 800 Wat_ cfm 750 665 1790 740 660 1770 1555 735 655 1530 720 645 50 1510 710 .25 60 1485 .30 75 1460 .40 100 .50 125 .60 in. w.g. Medium L_ NOTE- Alt air data is measuredextemaIto unitwith air filter in place.Etectdcheatershave no appreciableair resistance. CB28UH-060 BLOWER TABLE 8 PERFORMANCE (208/230v) Air Volume and Motor Watts at Specific External Static Pressure Low Medium-Low Medium Blower Taps Medium-High High in. w.g. Pa cfm L/s Watts cfm L/s Watts cfm L/s Watts cfm L/s Watts cfm L/s Watts .00 0 1570 740 575 1800 850 700 2005 945 825 2135 1005 930 2245 1060 1080 .05 10 1550 730 570 1780 840 690 1980 935 815 2110 995 925 2220 1050 1070 .10 25 1530 725 560 1760 830 680 1950 920 805 2080 985 915 2190 1035 1060 .15 35 1520 715 560 1735 820 670 1930 910 795 2055 970 905 2165 1020 1050 .20 50 1495 705 550 1710 805 660 1910 900 790 2025 955 895 2135 1010 1040 .25 60 1475 695 545 1690 795 655 1880 890 780 1995 940 885 2105 995 1030 .30 75 1460 690 540 1670 785 650 1855 875 770 1965 930 875 2075 980 1020 .40 100 1415 670 530 1615 760 630 1795 850 750 1910 900 855 2005 945 995 .50 125 1370 645 520 1560 735 615 1735 820 730 1850 875 835 1935 910 975 .60 150 1310 620 505 1495 705 595 1670 790 710 1780 840 810 1855 875 950 .70 175 1250 590 490 1425 675 575 1600 755 690 1705 805 785 1780 840 925 .80 200 1175 555 470 1360 640 560 1520 715 665 1620 765 755 1685 795 900 .90 225 1025 485 440 1280 605 545 1420 670 645 1520 715 725 1595 750 875 .95 235 1240 585 535 1365 645 630 1460 690 705 1545 730 860 NOTE - All air data is measured external to unit with air filter in place. Electric heaters have no appreciable air resistance. Page 9 Wiringmustconform tothecurrentNational ElectricCode ANSI/NFPA No. 70,or CanadianElectricCodePartI, CSAStandardC22.1,andlocalbuildingcodes.Referto followingwiringdiagrams.Seeunitnameplate for minimumcircuitampacityandmaximumovercurrent protectionsize. dancewith tables310-16and 310-17in the National ElectricCode,ANSI/NFPA No.70or tables1 through4 in the CanadianElectricCode,PartI, CSAStandard C22.1. Thisunitisprovidedwithknockoutforconduit.Referto figure9 for unitschematicwiringdiagram. Separateopeningshavebeenprovided for24Vlowvoltageandlinevoltage.Referto thedimensionillustration forspecificlocation. Selectthe propersupplycircuitconductorsin accor- Page 10 ,A WARNING CB28UH Typical Wiring FIELD WIRING FOR ECB SERIES UNITS WITHOUT CIRCUI[ BREAKERS Diagram FIELD UNITS CIRCUIT WIRING FOR ECB SERIES WITH CIRCUIT BREAKERS 5 CIRCUII AcB3 A LB= A L3= A A Z_ A : li_1 . g_ _ I =ill....i=ill....i_ - Single Phase Z CIRCUI] Z_cBzA -- ] A cB A .II...._ m L .,I.IIT m EQUIPMENT GROUND L5 IS NOT PRESENT ON IP} ELECTRIC HEATERS A ZB_ THE NUMBER OF CIRCUITS VARY ACCOROING TO HEATER MODEL, REFER TR FAN EDIL NAMEPLATE FOR ACTUAL NUMBER EMPLOYED A EQUIPMENI GROUND LOCATED IN INDOOR UNIf CONNECT POWER WIRES FROM HEALER LABELED LI,L2 ON "P" VOLTAGE UNITS AND LI,L2,L3 ON "Y" VOLTAGE UNITS TO TB2 TERMINAL STRIP IN INDOOR UNIT. 24V BLUE POWER R /_ A . -B k d >_ ICON > 4 >:_ ................................................... ! LOCATION MOTOR PLUG 5 SPD TO CHANGE SPEEDS MOTOR PLUG 5 SPD A COMMON COMMON HI HI MEO HI MED MEO MED LOW lOW LOW MOTOR --- LINE -- CLASS SHOWN VOLTAGE II FIELO VOLTAGE WIRING FIELD WIRING @ aoo_ FIGURE 9 Page 11 LH_o USA L2 LI COOLING ONLY APPLICATION 4i K5 INDOOR BLOWER RELAY •--_-----L NOTE-USE COPPER CONDUCTORS ONLY, I (Black) L2 (Orange) REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE CIRCUIT 1 FIELD-SUPPLIED WIRE NUTS TRANSFORMER © GROUND ,ll LINE VOLTAGE FIELD INSTALLED THERMOSTAT _j I F- l t_ TBI TERMI NAL ._1 I l_ Ir CLASS 2 VOLTAGE FIELD INSTALLED NEC/CEC NOTE-ALL REMAINING WIRES FACTORY INSTALLED I BLOCK /_k TO EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM J VV Z_ FACTORY COOLING APPLICATION WITH ELECTRIC INSTALLED JUMPERS HEAT L2 LI IL NOTE-USE COPPER CONDUCTORS ONLY, K5 INDOOR BLOWER RELAY HEAT ELEMENT REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE _1 CIRCUIT NOTE-ALL REMAINING WIRES FACTORY INSTALLED CIRCUIT BREAKERS OR TERMINAL BLOCK TRANSFORMER K52 HEAT RELAY _1 LINE VOLTAGE FIELD INSTALLED CLASS 2 VOLTAGE FIELD INSTALLED NEC/CEC FUSE ==_ GROUND ',1-- TO EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM /_ THERMOSTAT j r Ir I L_ L THERMOSTAT HEAT ANTICIPATION SETTING .4 AMP (ELECTRIC HEAT) TBI _) TERMINALIO BLOCK 'T L. t _l I I i . I __1 J _ WHEN TWO STAGE THERMOSTAT IS USED CONNECT SECOND STAGE HEAT BULB TO TERMINAL "W2," AND REMOVE JUMPER BETWEEN TERMINALS "R" AND "W2." Ak FACTORY INSTALLED JUMPERS VV Ax CONNECTION USED ON (Y VOLTAGE) /k 3L3PHASE ELECTRIC HEATERS ONLY. FIGURE 10 Page 12 HEAT PUMP ONLY APPLICATION L2 I l- K3 INDOOR BLOWER RELAY [] CIRCUIT 1 [],A CIRCUIT BREAKERS OR TERMINAL BLOCK TRANSFORMER FUSE GROUND TBI TERMINAL BLOCK I 1 /k] I L L CLASS 2 VOLIAGE FIELD INSIALLED NEC/CEC NOTE-ALL REMAINING WIRES FACTORY I I I I J I I I I i i I I I I I i I I I I I/ q[ w INSTALLED _> u_ o z Z_TO Z_ /_Y2 EXTERNAL LOAD 24VAC AT .50 AMP MAXIMUM FACTORY INSTALLED JUMPERS USED ONLY WHEN TWO SPEED COMPRESSOR AA IS USED (HP21). Z_ USING SERVICE LIGHT OPTION (S54) WITH SOME ELECTRONIC THERMOSTATS MAY REQUIRE MOVING S54 COMMON WIRE TO Y1 IN HEAT PUMP UNIT. Z_ COMMON Z_ AMBIENT COMPENSATING HEAT PUMP CLASS 2 VOLTAGE TERMINALS USED ONLY ON SOME THERMOSTATS. THERMISTOR CONNECTION USED ONLY ON SOME THERMOSTATS. FIGURE 11 Page 13 L2 LI It CIRCUIT HEAT PUMP APPLICATION WITH ELECTRIC HEAT K3 INDOOR BLOWER RELAY HEAT ELEMENT 'I r_,A CIRCUIT BREAKERS OR TERMINAL BLOCK TRANSFORMER K32 HEAT RELAY © _1 GROUND CLASS 2 VOLTAGE FIELD INSTALLED NEC/CBC FUSE NOTE - ALL REMAINING WIRES ARE FACTORY INSTALLED _TBI A TERM[ NAL BLOCK //_ THERMOSTAT HEATANTICIPATION SETTING 0.4 AMP ELECTRIC HEAT Z_ FACTORY INSTALLED JUMPERS /I I 1 I I J SI THERMOSTAT ,/_ ----- K22 EM HEAT RELAY cpcp pl $23 0UTO00R THERMOSTAT (IF USED) I '_( I I J i I T I ] 1 I .I t I I ' Ii /_ WHEN tS USED, CONNECT LEADS "R' TO AND TERMINALS "R" ANDOUTDOOR "W2" AND THERMOSTAT REMOVE JUMPER BETWEEN TERMINALS "W2." Z_ EMERGENCY HEAT RELAY (USED ONLY tF OUTDOOR T'STAT IS USED) FIELD PROVIDED AND INSTALLED NEW INDOOR UNIT, 24VAC 5VA MAX NEC/CEC CLASS 2 LO ',,_ LnZ o /_k USING SERVICE LIGHT OPTION ($54) WITH SOME ELECTRONIC THERMOSTATS MAY REQUIRE MOVING $54 COMMON WIRE TO Y1 IN HEAT PUMP UNIT. c_n- N Z_ COMMON z_Y2 Z_ USED ONLY ON SOME THERMOSTATS. USED ONLY WHEN TWO SPEED COMPRESSOR AMBIENT COMPENSATING THERMISTOR IS USED (HP21). CONNECTION USED ONLY ON SOME THERMOSTATS. FIGURE 12 Page 14 i-- i-,__j i i II , _ c,. °°i z,
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