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TCA Series - HvacPartsShop.com

1. SU ca 88 52 2 gt C 2 C SS 3 2 Ol C NS D CD CS 2 QC 49 0245 0305 0365 048 8 8 5 7 85 CO gt gt 88 520 2 C 77 UY SS Cc Cc 87 55 8 8 2 gt C 2 C 82876 0605 2 gt 277 7 C 2 gt gt C 500 C 2 Cc 2 C c 7 5 2 84 SS gt 8 8 C S S 200 C 200 C ASS C gt O gt 20 2 Orc C C TCAO036B 048B 060B B Cooling Components TCA units use one cooling circuits consisting of a compres sor condenser coil and evaporator coil See figure 4 One draw through type condenser fan is used in TCA024 072 units Units are equipped with belt drive or direct drive blow ers which draw air across the evaporator during unit opera tion Cooling may be supplemented by
2. 11 25 Fal HRI HEATER COMPRESSOR J2 JACK HEAT IN DNU Usb 218 l JACK EXHAUST FAN ACK TEST CCS 132 EXHAUST FAN MOTOR ICONTACTOR COMPRESSUR IRELAY QUTDOOR FAN 1 1 22 FAN EXHAUST FAN ECONOMIZER Pig FAN PS9 06 1 5 152 PLUG I TIN MOTO Ro ISWITCH LIMIT LOW COMP COMPRESSOR MONITOR et LIMIT Uu PRESS MANUAL RESET J UY DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED WIRING DIAGRAM COMBINATION PACKAGED ROOF TOP TCA TGA 036 048 060 072 1 M 380 420 50 3 Form 535 044W Litho U S A TCA024 072 P Y J amp M Voltage Sequence of Operation Power 1 Line voltage from unit disconnect energizes transformer T1 T1 provides 24VAC power to terminal strip TB1 TB1 provides 24VAC to the unit cooling heating and blower controls Blower Operation 2 Indoor thermostat terminal energizes blower contactor with 24VAC 3 N O K3 closes energizing blower B3 Economizer Operation 4 The economizer control module receives a demand and energizes exhaust fan relay K65 with 24VAC at 50 outside air damper open adjustable 5 N O K65 1 and N O K65 2 both close energizing exhaust fan motor B10 Cooling Demand 6 First stage cooling demand Y1 and G is energized by the thermostat G energizes bl
3. 1005 0 65 3 TON TCA036B 0 80 RPM BHP Drive Kit 5 510 0 10 0 15 610 0 20 0 25 605 0 20 640 0 25 675 0 30 745 0 35 705 0 25 720 740 0 30 790 0 35 870 0 45 805 820 0 40 0 50 945 0 55 540 0 15 635 0 20 0 30 0 35 880 045 955 0 60 1020 0 70 570 660 895 0 60 1010 0 65 1075 0 80 685 0 25 765 715 0 30 790 0 40 860 0 50 930 0 60 995 0 70 1055 0 85 0 35 815 0 45 840 0 45 910 0 55 880 0 55 950 0 65 965 980 0 65 1010 0 75 1030 0 75 1045 0 80 1070 0 90 0 90 to 1 60 in w g 3 Ton Basic Efficiency Down Flow TCA036B Air External Static in w g yale 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM RPM BHP RPM High Static Drive Kit 5 Field Furnished 900 1125 0 90 1185 1 00 1240 1 15 1290 1 30 1340 1 45 1390 1 60 1435 1 75 1480 1 95 1000 1135 0 90 1190 1 05 1245 1 20 1300 1 35 1350 1 50 1395 1 65 1440 1 80 1485 1 95 1100 1145 0 95 1200 1 10 1255 1 25 1305 1 40 1355 1 55 1405 1 70 1450 1 85 1495 2 05 1200 1155 1 00 1210 1 15 1265 1 30 1315 1 45 1365 1 60 1410 1 75 1460 1 95 1505 2 10 1300 1165 1 05 1220 1 20 1270 1 35 1325 1 50 1510 2 15 1400 1175 1 10 1280 125 1280 1 40 1335 1 55 1380 1 70 1430 1 90 1475 2 05 15
4. RPM RPM RPM High Static Drive 5 Field Furnished 900 1125 0 85 1330 1 35 1380 1 50 1425 1 65 1465 1 80 1000 1130 0 90 1240 1 15 1295 1 30 1340 1 40 1390 1 60 1435 1 75 1475 1 85 1100 1140 0 90 1200 1 05 1250 1 20 1300 1 35 1350 1 50 1400 1 65 1445 1 80 1485 1 95 1200 1150 0 95 1210 1 10 1260 1 25 1310 1 40 1360 1 55 1410 1 70 1455 1 85 1495 2 00 1300 1165 1 00 1270 1 30 1320 1 45 1415 1 75 1465 1 90 1505 2 05 1400 1175 1 05 1280 1 35 1330 1 50 1425 1 80 1470 1 95 1515 2 15 1500 1190 1 15 1240 125 1295 1 40 1345 1 55 1390 1 70 1435 1 90 1480 2 05 1525 2 20 0 10 to 0 80 in w g 3 Ton Standard Efficiency Horizontal TCA036S Air External Static in w g pe 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Furnished Low Static Drive Kit 1 900 480 0 10 735 0 30 810 0 35 875 0 45 940 0 55 1000 0 65 1000 520 0 15 595 0 15 675 0 25 750 0 30 820 0 40 890 0 50 950 0 60 1010 0 70 1100 555 0 15 625 0 20 695 0 25 765 0 35 835 0 45 1020 0 75 1200 595 0 20 660 0 25 725 0 30 790 0 40 850 0 45 1030 0 75 1400 675 0 30 730 0 35 785 0 40 840 0 50 895 0 55 1060 0 85 1500 720 0 35 765 0 40 815 0 45 870 0 55 920 0 60 1075 0 95 0 90 to 1 60 in w g 3 Ton Standard Efficiency Horizontal TCA036S Air External Static
5. LENNOX Service Literature UNIT INFORMATION Corp 0618 L4 Revised 07 2007 TCA 2 to 6 ton 7 to 21 kW TCA024 through 072 The TCA packaged electric cooling units are available in basic cooling efficiency 036B 048B and 060B and stan dard cooling efficiency 024S 030S 036 048 060 and 072S Cooling capacities range from 24 000 to 72 000 Btuh Optional electric heat is factory or field installed in TCA units Electric heat operates in single stage depending on the kW input size 7 5kW through 30 kW heat sections are available for the TCA unit Information contained in this manual is intended for use by qualified service technicians only All specifications are sub ject to change Procedures outlined in this manual are pre sented as a recommendation only and do not supersede or replace local or state codes If the unit must be lifted for service rig unit by attaching four cables to the holes located in the unit base rail two holes at each corner Refer to the installation instructions for the proper rigging technique AWARNING Improper installation adjustment alteration service maintenance can cause property damage person al injury or loss of life Installation and service must be performed by a qualified installer or service agency AIMPORTANT The Clean Air Act of 1990 bans the intentional vent ing of refrigerant 5 of July 1 1992 Approved methods o
6. RPM RPM BHP RPM RPM RPM RPM RPM BHP Field Furnished Low Static Drive Kit 3 1600 740 0 35 845 040 895 0 45 945 050 995 055 1040 0 65 1090 0 70 1700 780 040 880 0 50 925 055 975 0 60 1020 0 65 1065 0 70 1110 0 75 1800 820 045 865 0 50 915 0 55 960 060 1005 0 65 1050 0 70 1090 0 75 1135 0 85 1900 860 0 55 905 0 60 950 0 65 990 0 70 1035 0 75 1075 0 80 1120 0 85 1160 0 95 2000 905 060 945 065 985 070 1025 0 75 1065 0 85 1110 090 1150 0 95 1190 1 05 2100 945 0 70 985 075 1020 0 80 1060 0 85 1100 0 95 1140 100 1180 1 05 1215 1 10 2200 985 080 1060 0 90 1100 1 00 1135 1 05 1170 1 10 1210 1 15 1245 1 25 2300 1025 0 90 1100 1 05 1135 1 10 1170 1 15 1205 120 1240 1 30 1275 1 35 2400 1070 1 05 1135 1 15 1170 120 1205 1 30 1275 145 1310 150 0 90 to 1 60 in w g 5 Ton Standard Efficiency Down Flow 0605 Air External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 cfm RPM RPM RPM RPM RPM RPM RPM RPM Low Static Drive Kit 3 High Static Drive Kit 7 1600 1135 0 75 1220 0 90 1265 0 95 1305 1 05 1345 1 15 1385 1 20 1425 1 30 1700 1155 0 85 1360 1 20 1400 1 30 1440 1 40 1800 1180 0 90 1380 1 30 1415 1 35 1455 1 45 1900 1200 1 00 1280 1 15 1320 1 20 136
7. 760 0245 and TCA030S 1065 865 1055 830 1030 800 1000 770 955 740 905 700 850 655 785 720 645 9 BLOWER DATA DIRECT DRIVE 3 4 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Air Volume cfm at Various Blower Speeds 208 VOLTS 230 VOLTS 460 575 VOLTS High Medium Low High Medium Low High Medium Low 3 and 4 Ton Basic Efficiency Down Flow TCA036B and TCA048B 0 0 2225 1145 2125 1750 1220 0 1 2140 1145 2075 1715 1215 0 2 2070 1135 2025 1680 1205 0 3 2010 1105 1975 1640 1185 0 4 1950 1055 1915 1595 1155 0 5 1885 995 1850 1540 1105 0 6 1805 910 1770 1475 1040 0 7 1705 810 1680 1400 950 0 8 1580 1570 1310 0 9 1425 1445 1210 1 0 1230 1300 3 and 4 Ton Basic Efficiency Horizontal TCA036B and TCA048B 0 0 2110 1090 2125 1770 1265 0 1 2025 1090 2055 1720 1245 0 2 1955 1075 1990 1675 1230 0 3 1900 1045 1930 1635 1210 0 4 1840 1000 1865 1590 1180 0 5 1775 940 1795 1535 1130 0 6 1690 855 1715 1465 1050 0 7 1580 750 1620 1370 935 0 8 1435 1500 1240 0 9 1245 995 1155 885 1365 1075 3 4 Ton Standard Efficiency Down Flow 0365 and TCA048S
8. C DO 0 9 s20 seo 520 n 520 157 4 rae F4e F4e 10 15 22 5KW WIRING DIAGRAM 3 07 HEATING ELECTRIC TIEH 7 5 10 15 22 5 P BOX FEA LLIN Supersedes Form New Form No Seem 550184 Litho U S A Page 49 T1EH 7 5 15 22 5 30 VOLTAGE KEY F5 IFUSE ELECTRIU JFUSE UN E42 IrUSE ELECIRIC HEAT 2 nnn HE HEAT 1 HE2 ELEMEN RIC H HES ELEMENT ELECTRIC HEAT 53 hc K9 1 RELAY HEAT P2 PLUG UNIT HEAT 615 ISW AIT PRIMAR 5157 SWITCH LIMIT SECONDARY ELECT HT 2 TB2 TERMINAL STRIP UNIT _ F4 TBS 111 F3 Ye K 513 4 520 520 1 224 Q HE2 KI5 1 Q 21 7 Kisa 9 WS VEN O9 DFO SAMS Faz WIRING DIAGRAM 9705 HEATING ELECTRIC 7 5 15 22 5 50 5 HE2 HES 7 5 15 A4 New Form 535 049W Litho U Page 50 T1EHA 7 5 15 22 5 30 45 amp 60kW J VOLTAGE 24V POWER ON IKEY a FUN PRIMARY HI SWITCH LIM 5157 ISWITCH LIMIT SECONDARY ELECT HT 2 TB2 TERMINAL STRIP UNIT WIRING DIAGRAM 9 05 HEATING ELECTRIC 7 5 15 22 5 30 6 J M A_BOX ON New Form No 535 047W Lithe U Page 51 Sequence of Operation
9. POWER 1 Terminal strip TB1 found in the main control box supplies thermostat components with 24VAC OPERATION 2 TB1 receives signal from the electronic thermostat A2 Y1 Y2 W1 W2 and energizes the appropriate components for heat or cool demand Page 53 SERIES ECONOMIZER IKEY 6 A62 ENTHALPY SENSOR OR RT27 USED FOR DIFFERENTIAL SENSING NSO0R ENTHALPY N R 7 MOTOR DAMPER ECONOMIZER ECONOMIZER AND RT27 TEMPERATURE SENSORS fo MAY IP4 _ PLUG ECONOMIZER USED INSTEAD OF A7 AND 62 ENTHALPY SENSORS ISOR D AIR s DESIGNATES OPTIONAL WIRING CLASS II FIELD WIRING WIRING DIAGRAM 11 05 ACCESSORIES ECONOMIZER FOR TCA TGA UNITS BOX ECONOMIZER SECTION DI eer it 635 0590 2005 Litho U S A SEQUENCE OF OPERATION POWER 1 Terminal strip TB1 found in the main control box energizes the economizer components with 24VAC OPERATION Enthalpy sensor A7 and 2 if differential enthalpy is used communicates to the economizer control module when to power the damper motor B7 Economizer control module supplies B7 with 0 10 VDC to control the positioning of economizer The damper actuator provides 2 to 10 VDC position feedback Page 54 OUTDOOR AIR DAMPER DESCRIPTION COMPONENT MOTOR DAMPER ECONOMIZER PLUG ECONOMIZER 5 DESIGNATES OPTIONAL WIRING CLASS II FIELD WIRING WIRING DIAGRA
10. as 46 24V POWER NOTE FOR USE WITH COPPER CONDUCTORS ONLY REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE S40 IS NOT REQUIRED ON 072 UNITS ECONOMIZER 2 BLOWER G HEAT 1 1 HEAT 2 W2 IMPORTANT TO PREVENT MOTOR BURNOUT NEVER CONNECT MORE THAN ONE MOTOR LEAD TO ANY ONE CONNECTION TAPE UNUSED MOTOR LEADS amp c CONNECTIONS FOR REMOTE MOUNTED SMOKE DETECTORS 17 amp A64 LOAD O 1VA 24VAC CLASS II EACH J2 8 9 AND P2 ARE USED ON TCA UNITS ONLY A17 ONLY OR A64 ONLY HOOKUP AND A64 HOOKUP DESCRIPTION KEY COMPONENT DC NM R RANSF ORMER Fe FUSE EXHAUST FAN COMPRESSOR ARRONT ECONOMTZER JACK UNIT ECONOMIZER FAN K EXHAUST FAN yz De RS ESTER EXHAUST MOTOR BLOWER MOTOR 10 1 IR 65 1 2 FTN ST FAN IP2 PLUG UNIT HEAT 1L P4 PLUG ECONOMIZER IPLUG EXHAUST FAN IPS PLUG TEST 8 15 16 0 085 MOTOR S P UG BLOWER MOTOR 070 E CN 77 0 CI ITOR et Pa ee B KI EEE SWI TCH FREEZESTAT DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED WIRING DIAGRAM 1 06 COMBINATION PACKAGED ROOF TOP TCA TGA 036 048 060 072 1 G J
11. cfm RPM RPM RPM RPM RPM RPM High Static Drive 8 1900 1245 1 10 1285 1 15 1320 1 20 1355 1 30 1395 1 35 1430 1 45 1465 1 55 1495 1 60 2000 1275 1 20 1310 125 1345 1 35 1385 1 40 1420 150 1455 1 55 1485 1 65 1520 1 70 2100 1305 1 30 1340 1 40 1375 1 45 1410 1 55 1445 1 60 1480 1 70 1510 1 75 1545 1 85 2200 1335 1 45 1370 1 50 1405 1 60 1440 1 65 1470 1 75 1505 1 85 1535 1 90 1570 2 00 2300 1365 1 55 1400 1 65 1435 1 75 1470 1 80 1500 1 90 1530 1 95 1565 2 05 1595 2 15 2400 1400 1 70 1435 1 80 1465 1 90 1500 1 95 1530 2 05 1560 2 15 1590 2 20 1620 2 30 2500 1435 1 90 1465 1 95 1495 2 05 1530 2 15 1560 2 20 1620 2 40 1650 2 50 2600 1465 2 05 1500 2 15 1530 2 25 1560 2 30 1590 2 40 1620 2 50 1650 2 60 1680 2 70 2700 1500 2 25 1530 2 30 1565 2 40 1595 2 50 1620 2 60 1650 2 70 1680 2 80 1710 2 90 2800 1535 2 45 1565 2 50 1595 2 60 1625 2 70 1655 2 80 1685 2 90 1710 3 00 1740 3 10 2900 1570 2 65 1600 2 75 1630 2 85 1660 2 95 1685 3 00 1715 3 10 1745 325 1770 3 30 Note BOLD to operate this range 3 hp blower motor is required FACTORY INSTALLED BELT DRIVE KIT SPECIFICATIONS Motor hp RPM Range Nominal Maximum Drive 1 Drive 2 Drive 3 Drive 4 Drive 5 Drive 6 Drive 7 Drive
12. el 2 Check to ensure that refrigerant lines are in good condition and do not rub against the cabinet or other refrigerant lines 3 Check voltage at the disconnect switch Voltage must be within the range listed on the nameplate If not con sult the power company and have the voltage cor rected before starting the unit 4 Recheck voltage and amp draw with unit running If voltage is not within range listed on unit nameplate stop unit and consult power company Refer to unit nameplate for maximum rated load amps 5 Inspect and adjust blower belt see section on Blower Compartment Blower Belt Adjustment B Cooling Start Up Operation 1 Initiate first and second stage cooling demands ac cording to instructions provided with thermostat 2 No Economizer Installed in Unit A first stage cooling demand Y 1 will energize com pressor 1 and the condenser fan An increased cool ing demand Y2 will not change operation Units Equipped With Economizer When outdoor air is acceptable a first stage cooling demand Y1 will energize the economizer An in creased cooling demand Y2 will energize com pressor 1 and the condenser fan When outdoor air is not acceptable unit will operate as though no economizer is installed 1 Units contain one refrigerant circuit or stage 1 Unit is charged with 22 refrigerant See unit rat ing plate for correct amount of charge 1 Refer to Cooling O
13. input Output 208 1 19 200 1 7 5 25 600 1 11 2 38 200 1 16 9 57 700 1 22 5 76 800 220 1 21 500 1 8 4 28 700 1 12 6 43 000 1 18 9 64 500 1 25 2 86 000 230 1 23 500 1 9 2 31 400 1 13 8 47 000 1 20 7 70 700 1 27 5 93 900 240 1 25 600 1 10 0 34 200 1 15 0 51 200 1 22 5 76 800 1 30 0 102 400 440 1 21 500 1 12 6 43 000 1 18 9 64 500 1 25 2 86 000 460 1 23 500 1 13 8 47 000 1 20 7 70 700 1 27 5 93 900 480 1 25 600 1 15 0 51 200 1 22 5 76 800 1 30 0 102 400 550 1 21 500 1 12 6 43 000 1 18 9 64 500 1 25 2 86 000 575 1 23 500 1 13 8 47 000 1 20 7 70 700 1 27 5 93 900 600 1 25 600 1 15 0 51 200 1 22 5 76 800 1 30 0 102 400 25 TCA PARTS ARRANGEMENT FILTERS 4 024 030 036 048 060 16 20 X 2 EVAPORATOR BROWER 072 20 X 20 X 2 COIL MOTOR TB1 LOW VOLTAGE TERMINAL BLOCK CONDENSER FAN ECONOMIZER OPTIONAL BLOWER 0 EE NN CONDENSER lo 1 COIL CONDENSATE 5 DRAIN ELECTRIC HEAT Optional COMPRESSOR FIGURE 1 TCA CONTROL BOX TRANSFORMER FAN RELAY BLOWER CONTACTOR T4 K10 K3 riL 11 1 tl TRANSFORMER CONTACTOR K1 CAPACITOR C1 or C12 TERMINAL BLOCK TB1 FIGURE 2 Page 26 I U
14. 0 0 2175 1145 2100 1735 1220 0 1 2100 1145 2050 1705 1215 0 2 2040 1130 2000 1665 1205 0 3 1980 1095 1945 1625 1180 0 4 1915 1050 1885 1575 1145 0 5 1850 980 1815 1520 1095 0 6 1765 900 1735 1450 1025 0 7 1660 800 1640 1375 940 0 8 1535 1530 1285 0 9 1375 1120 1285 1000 1405 1185 1 0 1180 1125 1260 3 4 Ton Standard Efficiency Horizontal 0365 and TCA048S 0 0 2060 1740 1265 1890 1545 1090 2085 1745 1260 0 1 1990 1700 1255 1830 1515 1090 2020 1700 1240 0 2 1930 1660 1230 1780 1480 1070 1960 1660 1225 0 3 1870 1040 1900 1620 1205 0 4 1810 995 1835 1575 1170 0 5 1740 930 1760 1515 1115 0 6 1650 845 1680 1440 1035 0 7 1535 745 1580 1340 915 0 8 1385 1460 1210 0 9 1195 1320 1045 1 0 960 1155 10 BLOWER DATA DIRECT DRIVE 5 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Air Volume cfm at Various Blower Speeds External Static Pressure in w g 208 VOLTS 230 VOLTS 460 575 VOLTS High Low High Low High Low 5 Ton Basic Efficiency Down Flow TCA060B 0 0 2300 1745 0 1 2180 1710 0 2 2090 1690 0 3 2035 1680 0 4 1995 1670 0 5 1965 1655 0 6 1940 1635 0 7
15. eter lower Repeat steps 3 through 8 until calculation reads desired fresh air percentage DCV Set and Max Settings Adjust settings when an optional IAQ sensor is installed The DCV SET potentiometer is factory set at approxi mately 5096 of the potentiometer range Using a standard 1 2000ppm sensor dampers will start to open when the IAQ sensor reads approximately 1000ppm Adjust the DCV SET potentiometer to the approximate setting specified by the controls contractor Refer to figure 18 The DCV MAX potentiometer is factory set at approxi mately 50 of the potentiometer range or 6VDC Damp ers will open approximately half way when CO rises above setpoint Adjust the DCV MAX potentiometer to the approximate setting specified by the controls con tractor Refer to figure 18 Note DCV Max must be set higher than economizer mini mum position setting for proper demand control ventilation Page 41 1 CALCULATE MINIMUM FRESH AIR PERCENTAGE MIXED AND RETURN AIR TEMPERATURE 20 29 0 10 0 23 18 10 20 30 40 12 7 1 4 F 50 10 60 16 70 80 27 90 32 100 F 38 40 40 50 50 60 PERCENT FRESH AIR PERCENT FRESH AIR 60 70 70 80 80 90 100 F 20 29 10 0 23 18 10 12 20 30 40 FAM QE 50 10 90 100 F 60 70 16 21 80 27 90 32
16. 1 10 2100 890 0 65 940 0 70 985 0 80 1030 0 85 1075 0 95 1120 1 00 1160 1 10 1205 1 20 2200 930 0 70 975 0 80 1020 0 85 1065 0 95 1105 1 05 1145 1 10 1190 1 20 1230 1 30 2300 970 0 80 1010 0 90 1055 0 95 1095 1 05 1135 1 15 1175 1 20 1215 1 30 1255 1 40 2400 1005 0 90 1050 1 00 1090 1 10 1130 1 15 1170 1 25 1210 1 35 1245 1 45 1285 1 55 0 90 to 1 60 in w g 5 Ton Basic Efficiency Down Flow 060 External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM RPM Low Static Drive Kit 3 High Static Drive Kit 7 1600 1315 1 20 1355 1 30 1400 1 40 1440 1 50 1700 1155 0 90 1200 1 00 1245 1 10 1290 120 1330 1 30 1370 1 35 1410 1 45 1450 1 60 1800 1175 1 00 1220 1 10 1265 1 15 1305 1 25 1345 1 35 1385 1 45 1425 1 55 1465 1 65 1900 1240 1 15 1280 1 25 1325 1 35 1365 1 45 1400 1 55 1440 1 65 1480 1 75 2000 1220 1 15 1260 1 25 1300 1 35 1340 1 45 1380 1 55 1420 1 65 1455 1 75 1495 1 85 2100 1245 1 25 1285 1 35 1325 145 1360 1 55 1400 1 65 1440 1 75 1475 1 85 1510 1 95 2200 1270 1 40 1310 1 50 1345 1 55 1385 1 65 1420 1 75 1460 1 90 1495 2 00 1530 2 10 2300 1295 1 50 1335 1 60 1370 1 70 1405 1 80 1445 1 90 1480 2 00 1515 2 10 1550 2 20 2400 1320 1 60 1360 1 70
17. 1085 0 90 1135 1 05 1185 1 20 1230 1 30 1275 1 45 1320 1 60 1365 1 75 1405 1 90 1400 1100 1 00 1150 1 10 1195 1 25 1240 1 35 1285 1 50 1330 1 65 1370 1 80 1415 1 95 1500 1115 1 05 1160 1 15 1210 1 30 1255 1 45 1380 1 85 1420 2 00 12 BLOWER DATA BELT DRIVE 3 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g 3 Ton Standard Efficiency Down Flow TCA036S Air External Static in w g riesig 0 10 0 30 0 40 0 50 0 80 RPM RPM RPM RPM RPM RPM RPM 595 0 15 690 0 20 780 0 30 860 040 930 0 50 1000 0 60 1000 520 0 10 615 0 20 705 025 790 0 35 870 045 945 0 55 1010 0 65 1075 0 75 725 0 30 805 0 35 885 0 45 745 0 30 825 0 40 900 0 50 825 0 45 890 0 55 955 0 65 1015 0 75 0 90 to 1 60 in w g 3 Ton Standard Efficiency Down Flow TCA036S Air External Static in w g 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM
18. 1290 1 40 1330 1 50 1370 1 65 1410 1 80 1700 1135 1 05 1180 1 15 1265 1 35 1305 1 50 1345 1 60 1425 1 85 1800 1155 1 10 1200 1 20 1280 1 45 1320 1 55 1360 1 70 1435 1 95 1900 1180 1 20 1220 1 30 1300 1 55 1340 1 65 1375 1 75 1415 1 90 1450 2 05 2000 1205 1 30 1245 1 40 1320 1 65 1355 1 75 1395 1 90 1430 2 00 1465 2 15 Page 14 BLOWER DATA BELT DRIVE 4 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g 4 Ton Standard Efficiency Down Flow TCA048S Air External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM m BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Furnished Low Static Drive Kit 2 1200 580 0 15 660 020 740 0 30 815 0 35 885 0 45 955 0 55 1015 0 60 1075 0 70 1300 620 0 20 690 0 25 765 0 30 835 0 40 905 0 50 970 0 55 1030 0 65 1090 0 75 1400 655 0 25 790 0 35 855 0 45 925 0 55 985 0 60 1045 0 70 1105 0 85 1500 690 0 30 755 0 35 820 0 40 880 0 50 945 0 60 1005 0 65 1060 0 75 11
19. 1395 1 80 1430 1 90 1465 2 05 1500 2 15 1535 225 1570 2 35 0 10 to 0 80 in w g 5 Ton Basic Efficiency Horizontal 060 External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM RPM RPM RPM RPM RPM RPM BHP Low Static Drive Kit 3 1600 735 0 35 780 0 40 825 0 45 925 0 55 975 0 65 1025 0 70 1070 0 80 1700 775 0 40 815 0 45 860 0 50 905 0 55 1090 0 85 1800 855 0 55 895 0 60 940 0 65 985 0 70 1025 0 80 1070 0 85 1115 0 95 1900 855 0 55 895 0 60 935 0 65 975 0 75 1015 0 80 1055 0 85 1095 0 95 1140 1 05 2000 1165 1 10 2100 940 0 75 970 0 80 1005 0 85 1045 0 90 1080 1 00 1115 1 05 1155 1 15 1190 1 20 2200 980 0 85 1010 0 90 1045 0 95 1080 1 05 1115 1 10 1150 1 20 1185 1 25 1220 1 35 2300 1020 0 95 1050 1 00 1085 1 10 1115 1 15 1150 1 20 1185 1 30 1215 1 35 1250 1 45 2400 1065 1 10 1095 1 15 1125 1 20 1155 1 30 1185 1 35 1215 1 45 1250 1 50 1280 1 60 0 90 to 1 60 in w g 5 Ton Basic Efficiency Horizontal 060 External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM BHP RPM RPM BHP Low Static Drive Kit 3 High Static Drive Kit 7 1600 1120 0 90 1165 1 00 1210 1 10 1255 1 20 1295 1 30 1340 1
20. 1905 1600 0 8 1855 1545 0 9 1780 1465 1 0 1670 5 Ton Basic Efficiency Horizontal TCA060B 0 0 2285 1800 0 1 2225 1800 0 2 2170 1790 0 3 2120 1775 0 4 2070 1745 0 5 2020 1710 0 6 1965 1660 0 7 1895 1600 0 8 1820 1525 0 9 1730 1440 1 0 1620 5 Ton Standard Efficiency Down Flow 0605 0 0 2155 1715 0 1 2085 1695 0 2 2035 1685 0 3 2000 1675 0 4 1970 1660 0 5 1940 1640 0 6 1905 1610 0 7 1855 1565 0 8 1790 1495 0 9 1700 1405 1 0 1580 5 Ton Standard Efficiency Horizontal 0605 0 0 2190 1870 2030 1600 2215 1800 0 1 2150 1850 1990 1595 2165 1796 0 2 2105 1820 1950 1585 2120 1780 0 3 2070 1750 0 4 2020 1715 0 5 1965 1670 0 6 1900 1615 0 7 1830 1550 0 8 1750 1475 0 9 1650 1385 1 0 1535 11 BLOWER DATA BELT DRIVE Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g RPM BHP 480 0 10 RPM BHP Field Furnished 590 0 15 3 Ton Ba RPM BHP Low Static Drive Kit 1 690 0 25 sic Efficiency Down Flow External Static in w g RPM BHP BHP 780 0 30 860 0 40 RPM BHP 935 0 55 RPM BHP
21. 3 F 1 7 C 1 7 C on a temperature drop and closes at 58 F 4 F 14 4 C 2 2 onatempera ture rise To prevent coil icing freezestats open during compressor operation to temporarily disable the re spective compressor until the coil temperature rises If the freezestats are tripping frequently due to coil icing check the airflow filters economizer position and unit charge be fore allowing unit back in operation Make sure to eliminate conditions which might promote evaporator ice buildup 3 High Pressure Switch S4 optional The high pressure switch is a manual reset SPST N C switch which opens on a pressure rise 4 is located in the compressor discharge line and wired in series with the compressor contactor coil When discharge pressure rises to 450 10 psig 3103 69 kPa indicating a problem in the system the switch opens and the respective compressor is de energized the economizer can continue to operate 4 Low Ambient Switches S11 optional The low ambient switch is an auto reset SPST N O pres sure switch which allows for mechanical cooling opera tion at low outdoor temperatures In all models the switch is located in each liquid line prior to the indoor coil section and is wired in parallel with outdoor fan B4 When S11 opens B4 is de energized In G J and M voltage units S11 is wired in series with out door fan relay K10 coil and when opened breaks 24 volts to the coil de energizing outdoor
22. 40 1380 1 50 1420 1 65 1700 1135 0 95 1180 1 05 1225 1 15 1270 1 25 1310 1 35 1350 1 45 1390 1 60 1430 1 70 1800 1155 1 00 1200 1 10 1240 1 20 1285 1 30 1325 1 45 1365 1 55 1405 1 65 1440 1 75 1900 1220 1 20 1260 1 30 1300 1 40 1340 1 50 1380 1 65 1415 1 75 1455 1 85 2000 1245 1 30 1280 1 40 1320 1 50 1360 1 60 1395 1 70 1435 1 85 1470 1 95 2100 11230 1 30 1265 1 40 1305 1 50 1340 1 60 1380 1 70 1415 1 80 1450 1 95 1485 2 05 2200 1255 1 40 1290 1 50 1330 1 60 1365 1 70 1400 1 85 1435 1 95 1470 2 05 1505 2 15 2300 1285 1 55 1320 1 65 1355 1 75 1385 1 85 1420 1 95 1455 2 05 1490 2 20 1520 2 30 2400 1315 1 70 1345 1 75 1380 1 90 1415 2 00 1445 2 10 1480 2 20 1510 2 30 1545 2 45 16 BLOWER DATA BELT DRIVE Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 5 TON 0 10 to 0 80 in w g 5 Ton Standard Efficiency Down Flow 0605 Air External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM
23. BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Furnished Low Static Drive Kit 2 1200 590 0 15 900 0 50 960 0 55 1015 0 65 1300 630 0 20 685 0 25 745 0 30 805 0 35 860 0 45 920 0 50 975 0 60 1030 0 70 1400 675 0 25 940 0 55 990 0 65 1045 0 75 1500 715 0 30 760 0 35 810 0 40 860 0 50 910 0 55 960 0 60 1010 0 70 1060 0 80 1600 755 0 40 800 0 45 845 0 50 890 0 55 940 0 60 985 0 70 1035 0 80 1080 0 85 1700 800 0 45 840 0 50 880 0 55 925 0 60 970 0 70 1015 0 75 1060 0 85 1100 0 95 1800 840 0 55 880 0 60 920 0 65 960 0 70 1000 0 75 1040 0 85 1085 0 95 1125 1 00 1900 885 0 60 955 0 75 995 0 80 1030 0 85 1070 0 95 1110 1 00 1150 1 10 2000 925 070 114710 1180 1 20 0 90 to 1 60 in w g 4 Ton Standard Efficiency Horizontal TCA048S Air External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM BHP RPM RPM Drive Kit 2 High Static Drive Kit 6 1200 1065 0 75 1165 0 95 1210 1 05 1255 1 20 1295 1 30 1335 1 40 1375 1 50 1300 1130 0 90 1175 1 00 1220 1 10 1265 1 25 1305 1 35 1345 1 45 1385 1 60 1400 1320 140 1360 150 1400 155 1500 1330 145 1370 160 1410 170 1600 1125 0 95 1170 1 05 1215 1 15 1260 1 30 1300 1 40 1345 1 55 1385 1 65 1420 1 80 1700 1190 1 15 1235 1 25 1275 1 35 13
24. R 22 6 165 0 oz 7 Ibs 12 oz Reciprocating Scroll 15 6 15 6 3 8 3 8 1 0 1 5 20 20 1 4 1 4 825 825 250 250 24 3 24 3 3 700 3 500 7 78 7 78 3 8 3 8 2 3 14 14 1 3 4 npt 1 3 4 npt Balanced Port Therm 5 5 10 x 10 10 x 10 208 230V amp 208 230V 460V 1 phase 3 phase 208 230V 460V amp 575V 3 phase 3 5 TON 4 Ton 5 Ton TCA048B2D TCA048S2D TCA060B2D TCA060S2D Basic Standard Basic Standard 49 500 50 000 59 800 62 000 47 000 48 000 57 000 59 000 1 750 1 600 1 850 1 800 75 75 82 82 5 0 4 4 6 7 5 4 10 0 13 0 10 0 13 0 9 4 11 0 8 5 11 0 R 22 R 22 R 22 R 22 6 Ibs 12 oz 9 Ibs 12 oz 6165 3 oz 11 Ibs 5 oz Scroll Scroll Scroll Scroll 15 6 15 6 15 6 15 6 3 8 3 8 3 8 3 8 1 0 2 0 1 0 2 0 20 20 20 20 1 4 1 4 1 3 1 3 825 825 1075 1075 250 250 370 370 24 3 24 3 24 3 24 3 3 700 3 300 4 300 4 300 7 78 7 78 7 78 7 78 3 8 3 8 3 8 3 8 2 3 2 4 14 14 14 14 1 3 4 npt 1 3 4 npt 1 3 4 npt 1 3 4 npt ostatic Expansion Valve removeable power head 5 5 75 75 10 x 10 10 x 10 11 10 11 x 10 Disposable 4 16 x 20x 2 208 230 amp 208 230V 208 230V amp 208 230V 460V 1 phase 460V 1 phase 3 phase 3 phase 208 230V 208 230V 460V amp 575V 460V amp 575V 3 phase 3 phase NOTE Net capacity includes evaporator blower motor heat deduction Gross capacity does not include evaporator blower motor heat deduction 1 Certified in accordance with the USE certifica
25. RETURN AIR A64 DETECTUR SMDKE SUPPLY AIR B1 COMPRESSOR MOTOR BLOWER B4 MOTOR OUTDOOR 7 MITUR DAMPER ECUNDMIZER 10 MOTOR EXHAUST 4 CAPACITUR BLUWER MOTOR C6 CAPACITUR EXHAUST C7 CAPACITDR CDMPRESSDR HARD START 24V COMMON le NOTE IF ANY WIRE IN THIS APPLIANCE IS REPLACED IT CAPACITUR DUAL MUST BE REPLACED WITH WIRE DF LIKE SIZE RATING TERMINATION AND INSULATION THICKNESS eee Bet AKER TRANSFIIRMER TI WARNING ELECTRIC SHOCK HAZARD CAN CAUSE INJURY HEATER COMPRESSOR OR DEATH UNIT MUST BE GROUNDED IN JACK HEAT ACCORDANCE WITH NATIONAL AND LOCAL CODES JACK UNIT ECONOMIZER JACK EXHAUST FAN DISCONNECT ALL POWER BEFORE SERVICING JACK TEST JACK BLU WER EXHAUST FAN MOTOR 0 1 1 E CONTACTOR COMPRESSOR 12 9 CONTACTOR BLOWER RELAY HARD START Le RELAY EXHAUST FAN PLUG UNIT HEAT F PLUG ECUN MIZER EQUIPMENT Q DLUG EXHAUST GROUND X IPLUG BLOWER MOTOR IPLUG EXHAUST FAN MOTOR A SWITCH LIMIT LOW COMP 1 LICR 3 1 COMPRESSOR MONITOR SWITCH LIMIT HI PRESS MANUAL RESET 2555 SWITCH LUW PRESS LOW AMB KIT THERMOSTAT CRANKCASE SWITCH FREEZESTAT SWITCH FIRESTAT 1 1 1 SWITCH FIRESTAT 2 TRANSFORMER CONTROL FIELD WIRING P
26. TCA072S Voltage 60hz 208 230V 3ph 460V 3ph 575V 3ph Compressor Rated Load Amps 18 6 9 0 74 Locked Rotor Amps 156 0 75 0 54 0 Outdoor Fan Full Load Amps 2 4 1 3 1 0 Motor Locked Rotor Amps 47 24 19 Power Horsepower 75 75 75 Exhaust Full Load Amps 50 22 15 Locked Rotor Amps 7 8 34 2 9 Service Outlet 115V GFI amp rating 15 15 15 Indoor Blower Horsepower 1 5 2 Motor Rated Load Amps 57 27 Locked Rotor Amps 40 16 2 Maximum Unit Only 50 20 wihpower OKW 50 20 7 5 kW 50 20 15 kw 60 25 22 5 kW 80 35 30 110 45 Minimum Unit Only 32 13 wihpower 37 15 7 5 kW 37 15 15 kw 58 23 22 5 kW 80 32 30 kW 103 41 Unit Fuse Block Unit Only 18W05 18W05 18W07 18W08 18W07 18W07 with power exhaust 18W05 18W05 18W08 18W08 18W07 18W07 Disconnect Standard 0 22 5 kW 20W18 20W18 20W18 20W18 20W18 20W18 Access Panel 3o amp w 20w19 20W19 20W18 20W18 20W18 20W18 Hinged Access 0 22 5 20W24 20W24 20W24 20W24 20W24 20W24 30 kW 20W25 20W25 20W24 20W24 20W24 20W24 NOTE Extremes of operating range are plus and minus 10 of line voltage 1 HACR type breaker or fuse 2 Refer to National or Canadian Electrical Code manual to determine wire fuse and disconnect size requirements ELECTRIC HEAT CAPACITIES 7 5 kW 10 kw 15 kW 22 5 kW 30 kW No of kW Btuh No of kW Btuh No of kW Btuh No of kW Btuh No of kW Btuh Steps input Output Steps input Output Steps input Output Steps input Output Steps
27. enthalpy control and an A7 outdoor enthalpy sensor The modulating economizer opens fully to use outdoor air for free cooling when temperature is suit able and opens to minimum position during the occupied time period The A6 enthalpy control is located in the economizer ac cess area See figure 17 The A7 enthalpy sensor is located on the division panel between horizontal supply and return air sections ECONOMIZER CONTROLS A7 ENTHALPY SENSOR OTHER SIDE OF PANEL ENTHALPY CONTROL X NN B7 DAMPER MOTOR MIXED AIR SENSOR R1 AND WIRING POWER EXHAUST WIRES THIS BUNDLE ONLY CONNECTED WHEN UNIT IS EQUIPPED WITH POWER EXHAUST FIGURE 17 Optional Sensors An optional differential sensor A62 may be used with the AT outdoor sensor to compare outdoor air enthalpy to re turn air enthalpy When the outdoor air enthalpy is below the return air temperature outdoor air is used for free cool ing Mixed air sensor R1 is used to modulate dampers to 55 F 13 discharge air An optional IAQ sensor A63 may be used to lower operat ing costs by controlling outdoor air based on level room occupancy also called demand control ventilation or DCV Damper minimum position can be set lower than traditional minimum air requirements dampers open to traditional ventilation requirements when CO level reach es DCV IAQ setpoint Refer to instructions provided with s
28. fan B4 When liquid pressure rises to 275 10 psig 1896 69 kPa the switch closes and the condenser fan is ener gized When discharge pressure in drops to 150 x 10 psig 1034 69 kPa the switch opens and the condenser fan is de energized This intermittent fan operation results in higher evaporating temperature allowing the system to op erate without icing the evaporator coil and losing capacity 5 Low Temperature Switch S3 optional compressor monitor S3 is a SPST bimetal thermostat which opens on tempera ture drop It is wired in line with the 24 compressor con tactor When outdoor temperature drops below 40 F 4 5 C the switch opens and de energizes the compressor When the compressor is de energized the cooling demand is handled by the economizer The switch automatically re sets when outdoor temperature rises to 50 F 10 C C Blower Compartment TCA 036 048 and 060 units are equipped with either direct drive or belt drive blowers The 024 and 030 are equipped with direct drive blowers only and the TCA072 is available with belt drive blowers only See unit nameplate for blower type The blower compartment in all TCA024 072 units is located between the evaporator coil and the compressor compartment 1 Blower Wheels All belt drive units use 10 x 10 254 mm x 254 mm blower wheels The 024 030 036 and 048 direct drive units use 10 x 10 254 mm x 254 mm blower wheels also The TCAO060 di
29. frames Transition must be installed in the roof mounting frame before mounting the unit to the frame Refer to the manufacturer s instructions included with the transition for detailed installa tion procedures C Outdoor Air Dampers T1DAMP 114 1 is available for TCA 2 2 5 3 4 and 5 ton unit and TIDAMP11N 1 is available for the TCA 6 ton units Both sets include the outdoor air hood A motorized kit T1DAMP21AN1 can be ordered separately for all TCA unit sizes The dampers may be manually or motor M op erated to allow up to 25 percent outside air into the system at all times see figure 16 Washable filter supplied with the outdoor air dampers can be cleaned with water and a mild detergent It should be sprayed with Filter Handicoat er when dry prior to reinstallation Filter Handicoater is R P Products coating no 418 and is available as Lennox Part No P 8 5069 Page 39 OUTDOOR AIR DAMPER MOTORIZED DAMPER ASSEMBLY Tm MANUAL OUTDOOR AIR DAMPER PAINTED SIDE FIGURE 16 D Supply and Return Diffusers all units Optional flush mount diffuser return FD9 65 and FD11 95 and extended mount diffuser return RTD9 65 and RTD11 95 are available for use with all TCA units Refer to manufacturer s instructions included with tran sition for detailed installation procedures E Economizer Field or Factory Installed Unit may contain an optional factory installed economizer equipped with an A6
30. included in ARI Standard 270 3 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor hp required Maximum usable hp of motors furnished are shown In Canada nominal motor hp is also maximum usable motor hp output If motors of comparable hp are used be sure to keep within the service factor limitations outlined on the motor nameplate 4 2 hp blower motor is not available for 208 230V 1ph applications Page 7 Disposable 4 16 x 20 x 2 208 230V 1 phase 208 230V 460V amp 575V 3 phase SPECIFICATIONS BELT DRIVE BLOWER 5 6 TON General Data Nominal Tonnage 5 Ton 6 Ton Model No TCA060B2B 06052 07252 Efficiency Type Basic Standard Standard Cooling Gross Cooling Capacity Btuh 59 800 62 000 75 000 Pertormance Net Cooling Capacity Btuh 1 57 000 1 59 000 2 72 000 ARI Rated Air Flow cfm 1 850 2 000 2 250 3 Sound Rating Number dB 82 82 82 Total Unit Power kW 6 7 5 4 7 0 SEER Btuh Watt 110 0 113 0 EER Btuh Watt 18 5 141 0 210 3 Refrigerant Type R 22 R 22 R 22 Charge Furnished 6 Ibs 3 oz 11 Ibs 5 oz 11 Ibs 3 oz Compressor Type one per unit Scroll Scroll Scroll Outdoor Coil Net face area sq ft 15 6 15 6 19 27 Tube diameter in 3 8 3 8 3 8 Number of rows 1 0 2 0 1 4 Fins inch 20 20 20 Outdoor Motor HP 1 3 1 3 1 3 Seren Motor rpm 1075 1075 1075 Total motor watts 370 370 405 Diameter in No of blades 24 3
31. 0 1 30 1395 1 35 1435 1 45 1470 1 55 2000 1265 1 15 1305 1 25 1340 1 30 1380 1 40 1415 1 45 1450 1 55 1485 1 65 2100 1255 1 20 1290 1 25 1330 1 35 1365 1 40 1400 1 50 1435 1 60 1470 1 65 1505 1 75 2200 1280 1 30 1320 1 40 1355 1 45 1390 1 55 1425 1 60 1460 1 70 1495 1 80 1525 1 85 2300 1310 1 45 1345 1 50 1380 1 60 1415 1 65 1450 1 75 1480 1 85 1515 1 90 1550 2 00 2400 1340 1 55 1505 1 95 1540 2 05 1570 2 15 0 10 to 0 80 in w g 5 Ton Standard Efficiency Horizontal 0605 External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM RPM RPM RPM RPM RPM RPM Field Furnished Low Static Drive Kit 3 1600 760 0 35 850 0 45 900 0 50 950 0 55 1000 0 65 1050 0 70 1100 0 80 1700 805 0 45 1025 0 70 1075 0 80 1120 0 85 1800 845 0 50 885 0 55 1055 0 80 1100 0 85 1145 0 95 1900 890 0 60 925 0 65 965 0 70 1000 0 75 1040 0 80 1085 0 90 1125 0 95 1170 1 05 2000 935 0 70 1000 0 80 1040 0 85 1075 0 90 1115 0 95 1155 1 05 1195 1 15 2100 975 0 80 1040 0 90 1075 0 95 1110 1 00 1145 1 05 1185 1 15 1225 1 25 2200 1020 0 90 1080 1 00 1115 1 05 1145 1 15 1180 1 20 1215 1 25 1250 1 35 2300 1065 1 05 1120 1 15 1155 1 20 1185 1 25 1215 1 30 1250 1 40 1285 1 50 2400 1110 1 20 1135 1 25 1165 1 30 1190 1 35 1220
32. 00 ON New rs No e S85 0258 Lithe U S A J2 LI R L2 5 L3 T E PPP e Pp TCA036 072 VOLTAGE UNIT DIAGRAM 5 A64 5 5 17 A64 A QUIPMENT NOTE FOR USE WITH COPPER CONDUCTORS ONLY REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE S40 IS NOT REQUIRED ON 072 UNITS IMPORTANT TO PREVENT MOTOR BURNOUT NEVER CONNECT MORE THAN ONE MOTOR LEAD TO ANY ONE CONNECTION TAPE UNUSED MOTOR LEADS CONNECTIONS FOR REMOTE MOUNTED SMOKE DETECTORS A17 amp A64 MAX LOAD 0 1 24VAC CLASS II EACH J2 8 9 AND P2 ARE USED ON TCA UNITS ONLY A17 ONLY OR A64 ONLY HOOKUP 17 AND A64 HOOKUP EXHAUST FAN MOTOR FIELD WIRING POWER SUPPLY LI R 12 5 15 47 24V POWER ECONOMIZER BLOWER G HEAT 1 WI HEAT 2 W2 6 WARNING ELECTRIC SHOCK HAZARD CAN CAUSE INJURY ACCORDANCE WITH NATIONAL AND LOCAL CODES DISCONNECT ALL POWER BEFORE SERVICING NOTE IF ANY WIRE IN THIS APPLIANCE IS REPLACED IT MUST BE REPLACED WITH WIRE OF LIKE SIZE RATING TERMINATION AND INSULATION THICKNESS COOL I YI po DESCRIPTION _ _ _ KEY SORTER PON B LATE 1 0 ir RETURN AR Bs 07 B7 MOTOR DAMPER ECONOMIZER BIO MOTOR BLOWER EXHAUST 24V COMMON CI CAPACITOR OUTDOOR FAN 5 CAPACI TOR EXHAUST CIRCUIT BREAKER TRANSFORMER
33. 1 40 1255 1 45 1285 1 55 1315 1 60 0 90 to 1 60 in w g 5 Ton Standard Efficiency Horizontal 0605 External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 cfm RPM RPM RPM RPM RPM RPM RPM RPM Low Static Drive Kit 3 High Static Drive Kit 7 1600 1150 0 90 1195 1 00 1240 1 10 1285 120 1330 1 30 1370 1 40 1410 150 1445 1 60 1700 1170 0 98 1385 150 1425 160 1460 170 1800 1190 1 05 1275 1 25 1320 1 35 1360 1 45 1400 155 1440 1 65 1475 180 1900 1210 1 10 1255 1 20 1295 130 1335 140 1375 1 55 1415 1 65 1455 1 75 1495 1 90 2000 1275 1 30 1315 1 40 1355 1 50 1395 1 60 1435 1 75 1470 1 85 1510 2 00 2100 1340 1 50 1375 160 1415 175 1450 1 85 1490 1 95 1525 2 10 2200 1325 155 1360 1 60 1400 1 75 1435 185 1470 1 95 1510 210 1545 2 20 2300 1355 1 65 1390 175 1425 1 85 1460 1 95 1495 210 1530 220 1565 2 30 2400 1380 1 80 1415 1 90 1450 200 1485 2 10 1550 2 35 1585 245 Page 17 BLOWER DATA BELT DRIVE 6 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from
34. 10 0 11 6 9 4 11 0 R 22 R 22 R 22 R 22 6 Ibs 0 oz 7 Ibs 12 oz 6 Ibs 12 oz 9 Ibs 12 oz Reciprocating Scroll Scroll Scroll 15 6 15 6 15 6 15 6 3 8 3 8 3 8 3 8 1 0 1 5 1 0 2 0 20 20 20 20 1 4 1 4 1 4 1 4 825 825 825 825 250 250 250 250 24 3 24 3 24 3 24 3 3 700 3 500 3 700 3 300 7 78 7 78 7 78 7 78 3 8 3 8 3 8 3 8 2 3 2 3 14 14 14 14 1 3 4 NPT 1 3 4 NPT 1 3 4 NPT 1 3 4 NPT Balanced Port Thermostatic Expansion Valve removeable power head 1 5 hp 2 hp 1 5 hp 42 hp 1 5 hp 2 hp 1 5 hp 42 hp 1 72 hp 2 3 hp 1 72 2 3 hp 1 72 hp 2 3 hp 1 72 hp 2 3 hp 10 x 10 10 x 10 10 x 10 10 x 10 kit 1 673 1010 rpm kit 4 968 1340 rpm kit 7 1212 1548 rpm 2 745 1117 rpm kit 5 897 1346 rpm kit 8 1193 1591 rpm kit 3 833 1250 rpm kit 6 1071 1429 rpm Disposable 4 16 x 20x 2 208 230V amp 460V 3 phase Disposable 4 16 x 20 x 2 208 230V 1 phase 208 230V 460V amp 575V 3 phase Disposable 4 16 x 20 x 2 208 230 amp 460 3 phase NOTE Net capacity includes evaporator blower motor heat deduction Gross capacity does not include evaporator blower motor heat deduction 1 Certified in accordance with the USE certification program which is based on ARI Standard 210 240 95 F outdoor air temperature and 80 F db 67 F wb entering evaporator air minimum external duct static pressure 2 Sound Rating Number rated in accordance with test conditions
35. 100 38 OUTDOOR AIR TEMPERATURE Economizer Operation The occupied time period is determined by the thermostat or energy management system Outdoor Air Not Suitable During the unoccupied time period dampers are closed During the occupied time period a cooling demand will open dampers to minimum position and mechanical cooling functions normally During the occupied time period dampers will open to DCV MAX when IAQ reading is above setpoint regardless of thermostat demand or outdoor air suitability Outdoor Air Suitable See table 16 for economizer operation with a standard two stage thermostat During the occupied period dampers will open to DCV MAX when IAQ reading is above setpoint regardless of thermostat demand or outdoor air suitability DCV MAX will NOT override damper full open position When an R1 mixed air sensor for modulating dampers is installed DCV MAX may override damper free cooling position when oc cupancy is high and outdoor air temperatures are low If R1 senses discharge air temperature below 45 F 7 C dampers will move to minimum position until discharge air temperature rises to 48 F 9 C B Outdoor Air Dampers Optional manual and motorized outdoor air dampers pro vide fresh outdoor air The motorized damper assembly opens to minimum position during the occupied time peri od and remains closed during the unoccupied period Manual damper assembly is set at installation and re mains in
36. 15 1 45 1355 1 60 1395 1 70 1435 1 85 1800 1210 1 20 1250 1 30 1290 1 45 1335 1 55 1370 1 70 1410 1 80 1450 1 95 1900 1230 1 30 1270 1 40 1310 1 55 1350 1 65 1390 1 80 1425 1 90 1465 2 05 2000 1295 1 50 1330 1 65 1405 1 85 1445 2 00 1480 2 15 Page 15 BLOWER DATA BELT DRIVE 5 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g 5 Ton Basic Efficiency Down Flow 060 External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM RPM RPM RPM RPM RPM RPM BHP Low Statie Drive Kit 1600 705 0 30 765 0 35 825 0 40 935 0 55 990 0 60 1040 0 70 1090 0 75 1700 740 0 35 800 0 40 855 0 50 910 0 55 960 0 60 1010 0 70 1060 0 75 1110 0 85 1800 780 0 40 835 0 50 885 0 55 940 0 60 990 0 70 1035 0 75 1085 0 85 1130 0 90 1900 815 0 50 870 0 55 920 0 60 970 0 70 1015 0 75 1065 0 85 1110 0 90 1155 1 00 2000 855 0 55 905 0 60 950 0 70 1000 0 75 1045 0 85 1090 0 90 1135 1 00 1180
37. 17W48 x x NOTE The model numbers that appear here are for ordering field installed accessories only Field Installed or Configure to Order factory installed Configure to Order Factory Installed X Field Installed Page 4 SPECIFICATIONS DIRECT DRIVE BLOWER 2 2 5 General Data Nominal Tonnage 2 Ton 2 5 Ton Model No TCA024S2D TCA030S2D Efficiency Type Standard Standard Cooling Gross Cooling Capacity Btuh 30 000 Performance 4 Net Cooling Capacity Btuh 29 400 ARI Rated Air Flow cfm 1000 2 Sound Rating Number dB 75 1 SEER Btuh Watt 13 5 13 5 1 EER Btuh Watt 12 11 8 Refrigerant Type R 22 R 22 Charge Furnished 7 Ibs 0 oz 7 Ibs 0 oz Compressor Type one per unit Scroll Outdoor Coil Net face area sq ft 15 6 Tube diameter in 3 8 Number of rows 1 Fins per inch 20 Outdoor Motor HP 1 4 Motor rpm 825 Total motor watts 250 Diameter in No of blades 24 3 Total air volume cfm 3700 Indoor Coil Net face area sq ft 7 78 Tube diameter in 3 8 Number of rows 3 3 Fins per inch 14 14 Drain Connection no and size in 1 3 4 npt 1 3 4 npt Expansion device type Balanced Port Thermostatic Expansion Valve removeable power head Indoor Blower Nominal Motor HP 25 25 Wheel nominal diameter x width in 10x 10 10x 10 Filters Type Disposable Number and size in 4 16 x 20 x 2 Electrical Characteristics 60 Hz 208 230V 208 230V 1 phase 1 phase N
38. 20 0 90 1600 730 0 35 790 040 850 045 910 0 55 965 0 65 1025 0 75 1080 0 85 1135 0 95 1700 770 0 40 825 0 45 880 0 55 935 0 60 990 0 70 1045 0 80 1100 0 90 1155 1 00 1800 810 0 45 860 0 55 910 0 60 965 0 70 1020 0 80 1070 0 85 1125 1 00 1175 1 10 1900 845 0 55 895 0 60 945 0 70 995 0 75 1045 0 85 1095 0 95 1145 1 05 1195 1 15 2000 885 0 65 1125 105 1170 1 15 1220 1 25 0 90 to 1 60 in w g 4 Ton Standard Efficiency Down Flow TCA048S Air External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 cfm RPM RPM RPM RPM RPM RPM RPM RPM High Static Drive Kit 6 Field 1200 1380 145 1425 155 1465 170 1300 1145 0 90 1200 1 00 1250 1 10 1300 125 1345 1 35 1435 1 60 1475 1 75 1400 1260 1 15 1310 1 30 1355 1 40 1445 1 70 1490 1 85 1500 1275 1 25 1320 1 35 1370 1 50 1455 1 75 1500 1 90 1600 1470 185 1510 195 1700 1205 1 10 1255 1 25 1300 1 35 1350 1 50 1395 1 65 1440 1 80 1480 1 90 1520 2 05 1800 1220 120 1450 1 85 1495 2 00 1535 2 15 1900 1240 1 30 1335 1 55 1380 1 65 1465 1 95 1510 2 10 1550 2 25 2000 1265 1 40 1395 1 75 1440 1 90 1480 2 05 1525 2 20 1565 2 35 0 10 to 0 80 in w g 4 Ton Standard Efficiency Horizontal TCA048S Air External Static in w g Volume 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM ien
39. 20 2 25 1500 1185 1 15 1240 1 30 1295 1 45 1345 1 60 1390 1 80 1440 1 95 1485 2 15 1530 2 30 0 10 to 0 80 in w g 3 Ton Basic Efficiency Horizontal TCA036B Air External Static in w g pal 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 RPM RPM RPM RPM RPM RPM BHP RPM BHP Field Furnished Low Static Drive Kit 1 900 475 0 10 565 0 15 650 0 20 800 0 35 870 0 45 930 0 55 990 0 65 1000 510 0 10 590 0 15 665 0 25 815 0 40 880 0 50 940 0 60 1000 0 70 1100 545 0 15 615 0 20 690 0 25 760 0 35 825 0 40 890 0 50 950 0 60 1010 0 75 1200 585 0 20 650 025 715 0 30 780 0 40 845 0 45 905 0 55 965 0 65 1020 0 75 1400 665 0 30 830 0 50 885 0 55 940 0 65 995 0 75 1045 0 85 1500 855 0 55 910 0 60 960 0 70 1010 0 80 1065 0 90 0 90 to 1 60 in w g 3 Ton Basic Efficiency Horizontal TCA036B Air External Static in w g pint 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM BHP RPM BHP High Static Drive Kit 5 Field 900 1045 0 75 1100 0 90 1150 1 00 1195 1 10 1240 1 25 1285 1 40 1325 1 50 1365 1 65 1000 1055 0 80 1105 0 90 1155 1 05 1205 1 15 1250 1 30 1295 1 45 1335 1 55 1375 1 70 1100 1260 1 35 1305 1 50 1345 1 60 1385 1 75 1200 1075 0 90 1125 1 00 1175 1 15 1220 1 25 1270 1 40 1310 1 55 1395 1 80 1300
40. 24 3 24 3 Total air volume cfm 4 300 4 300 4 800 Indoor Coil Net face area sq ft 7 78 7 78 9 7 Tube diameter in 3 8 3 8 3 8 Number of rows 2 4 3 Fins per inch 14 14 14 Drain Connection no and size in 1 3 4 NPT 1 3 4 NPT 1 3 4 NPT Expansion device type Balanced Port Thermostatic Expansion Valve removeable power head 4 Indoor Nominal Motor HP 1 5 hp 2 hp 1 5 hp 52 hp 1 5 hp 2 hp Blower amp Drive Selection Maximum Usable Motor HP 1 72 hp 2 3 hp 1 72 hp 2 3 hp 1 72 hp 2 3 hp Wheel nominal diameter x width in 10 x 10 10 x 10 10 x 10 Available Drive Kits kit 1 673 1010 rpm kit 4 968 1340 rpm kit 7 1212 1548 rpm kit 2 745 1117 rpm kit 5 897 1346 rpm kit 8 1193 1591 rpm kit 3 833 1250 rpm kit 6 1071 1429 rpm Filters Type Disposable Disposable Disposable Number and size in 4 16 x 20 x 2 4 16 x 20x 2 4 20x 20x2 Electrical Characteristics 60 Hz 208 230V amp 208 230V 208 230V 460V 1 phase 460V amp 575V 3 phase 3 phase 208 230V 460 amp 575V 3 phase NOTE Net capacity includes evaporator blower motor heat deduction Gross capacity does not include evaporator blower motor heat deduction 1 Certified in accordance with the USE certification program which is based on ARI Standard 210 240 95 F outdoor air temperature and 80 F db 67 F wb entering evaporator air minimum external duct static pressure 2 Certified in accordance with the ULE
41. 6 048 060 072 No OUTDOOR AIR Outdoor Air Dampers Damper Section Manual Includes Outdoor TIDAMP11A 1 16W88 x Aip moog T1DAMP11N 1 16W91 Damper Motorized Kit Order Manual Outdoor Air Damper Separately 16W92 x T1DAMP21AN1 Power Exhaust FAN Standard Static 208 230V TIPWRE10A 1P 17W39 460V TIPWRE10A 1G 17W40 575V TIPWRE10A 1J 17W41 208 230 TIPWRE10N 1P 17W42 460V TIPWRE10N 1G 17W43 575V TIPWRE10N 1J 17W44 ELECTRICAL Voltage 208 230V 1 phase O 9 208 230V 3 phase 460 3 phase Om Bem 575V 3 phase Om Hem Disconnect See Electrical Electric Heat Tables for selection GFI Service Outlets LTAGFIK10 15 74 70 ELECTRIC HEAT 7 5 kw 208 230V 1ph TTEHO075AN1P 14W32 x x x x x 208 230V 3ph TIEHOO75AN1Y 14W35 x x x x 460V 3ph TTEHO075AN1G 14W39 x x x x 575V 3ph TTEHO075AN1J 14W43 x x x x 10 kw 208 230V 1ph T1EHO100A1P 30W26 x 15 kw 208 230V 1ph TTEH0150AN1P 14W33 208 230V 3ph TTEH0150AN1Y 14W36 460V 3ph TTEHO150AN1G 14W40 575V 3ph TTEHO150AN1J 14W44 x x x 22 5 kW 208 230V 1ph T1EHO225AN1P 14W34 208 230V 3ph 225 14W37 x 460V 3ph TTEHO225AN1G 14W41 x 575V 3ph 1 225 1 14W45 30 kW 208 230V 3ph TTEHO300N 1Y 14W38 460V 3ph TTEHO300N 1G 14W42 x 575V 3ph T1EHO300N 1J 14W46 x ELECTRIC HEAT AC
42. 8 1 5 1 7 673 1010 745 1117 833 1250 968 1340 897 1346 1071 1429 1212 1548 1193 1591 2 23 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor hp required Maximum usable hp of motors furnished by Lennox are shown In Canada nominal motor hp is also maximum usable motor hp If motors of comparable hp are used be sure to keep within the service factor limitations outlined on the motor nameplate MINIMUM AIR FLOW WITH ELECTRIC HEAT UNITS CFM 2250 2050 1 19 BLOWER DATA POWER EXHAUST FANS PERFORMANCE Return Air System Air Volume Exhausted cfm Static Pressure 1 10 1 10 208V 230V 460V and 575V 208V 230V 460V and 575V Low Medium High Low Medium High Low Medium High Low Medium High 0 1290 1300 1320 1300 1305 1295 3545 3915 4230 3880 4135 4340 0 1 1045 1055 1055 1040 1050 1055 2880 3215 3580 3255 3550 3755 0 2 805 805 815 805 810 810 2290 2665 3055 2710 3010 3240 0 3 580 580 600 595 590 585 1735 2175 2605 2200 2500 2770 0 4 390 405 400 405 400 410 1165 1660 2175 1685 2010 2325 0 5 245 315 215 240 255 300 530 1045 1710 1120 1510 1885 0 6 155 340 35 90 165 290 250 1160 470 990 1420 0 7 145 515 140 400 470 430 915 OPTIONS ACCESSORIES AIR RESISTANCE in w g CEILIN
43. 9 16 18 19 15 kW 56 59 61 28 29 30 Unit Fuse Block Unit Only 18W00 18W01 18W01 18W06 18W06 18W06 with power exhaust 18W01 18W02 18W02 18W06 18W06 18W06 Disconnect Hinged Door 20W21 20W21 20W21 20W21 20W21 20W21 0 15 kW Standard Access Door 20W15 20W15 20W15 20W15 20W15 20W15 3 TON STANDARD EFFICIENCY TCA036S Voltage 60hz 208 230V 1ph 575V 3ph Compressor Rated Load Amps 14 4 9 6 5 8 4 0 Locked Rotor Amps 77 0 73 0 38 0 28 0 Outdoor Fan Full Load Amps 1 7 1 7 1 1 0 7 Motor Locked Rotor Amps 3 1 3 1 22 1 3 Power Horsepower 75 75 Exhaust Full Load Amps 5 0 15 Locked Rotor Amps 78 2 9 Service Outlet 115V GFI amp rating 15 15 Indoor Blower Horsepower 5 1 5 5 1 5 2 Motor Rated Load Amps 3 1 11 5 1 5 2 4 27 Locked Rotor Amps 6 8 55 3 8 15 16 2 Maximum Unit Only 35 45 15 15 15 Overcurrent with power 0KW 40 50 15 15 15 exhaust 7 5kw 50 60 15 15 45 15 kW 90 100 25 25 25 2 Minimum Unit Only 23 32 8 8 9 with power 28 37 14 9 10 10 exhaust 75kw 50 60 33 36 18 19 13 14 15 15 89 99 56 59 61 28 29 30 22 23 24 Unit Fuse Block Unit Only 17W94 17W96 18W00 18W00 18 01 118 06118 06 18W06 18W06 18W06 18W06 with power exhaust 17W95 17W97 18W01 18W01 18W02 18 06 18W06 18W06 18W06 18W06 18W06 Disconnect Hinged 0 7 5 kW 20W21 20W21 20 21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 15 kW 20W22 20W22 20W21 20W21 20W21 20W21 20W21 20W21 201 21 20W21 20W21 Standard Ac
44. Accessories Page 39 VIII Diagrams Page 44 2006 Lennox Industries Inc OPTIONS ACCESSORIES Item Catalog 024 030 036 048 060 072 No COOLING SYSTEM Condensate Drain Trap PVC LTACDKP03 07 37K69 Copper LTACDKCO3 07 45 67 Corrosion Protection em o Compressor Crankcase Heater 208 230V 1PH TICCHTO1AN1P 95 07 208 230V 3PH TICCHTO1A 1Y 21W36 Tx 460V 3PH TICCHTO1A 1G 21W37 Tx 460V 3PH TICCHTO1AN1G 95 08 x x 575V 3PH TICCHTO1AN1J 95 09 Low Ambient Kit T1SNSR12AN1 95 05 Efficiency Standard Om Basic O o High Pressure Switch T1SNSR11AN1 95M04 x Refrigerant R 22 Blower SUPPLY AIR Motors Direct Drive 0 25hp O Direct Drive 0 5 hp Om Direct Drive 0 75 hp O Belt Drive 1 5 hp Standard Efficiency Cm Bem Belt Drive 22 hp Standard Efficiency Om Drive Kits Drive Kit 1 TIDRKT001 1 673 1010 rpm 20W81 9 See Blower Data Tables for selection Drive Kit 2 TIDRKT002 1 745 1117 rpm 20W82 Drive Kit 3 TIDRKT003 1 833 1250 rpm 20W83 Drive Kit 4 TIDRKT004 1 968 1340 rpm 20W84 Drive Kit 5 TIDRKTO005 1 897 1346 rpm 20W85 9 Drive Kit 6
45. CESSORIES OPTIONS See Electrical Electric Heat Tables for selection Unit Fuse Block amp 9 9 9 NOTE The catalog and numbers that appear here are for ordering field installed accessories only Field Installed or Configure to Order factory installed Configure to Order Factory Installed X Field Installed Page 3 OPTIONS ACCESSORIES Item Catalog 024 030 036 048 060 072 Indoor Air Quality Indoor Air Quality Coz Sensors Sensor white case display COSNSR50AE1L 77N39 Sensor duct mount black case no display COSNSR53AE1L 87N54 x x x x x x Sensor Duct Mounting Kit LTIAQSDMKO03 36 85143 CEILING DIFFUSERS Step Down Order one RTD9 65 R 27687 RTD11 95 29604 Canada Only RTD11 95S 13 61 Flush Order one FD9 65 R 27686 FD11 95 29608 Canada Only FD11 95S 13 56 Transitions Supply and Return Order one TITRAN10AN1 17W53 x x x 20 1 17W54 ROOF CURBS Down Flow Cliplock 8 in height T1CURB23AN1 16W93 x 14 in height T1CURB20AN1 16W94 x x 18 in height T1CURB21AN1 16W95 x x x x 24 in height T1CURB22AN1 16W96 x x Standard 14 in height T1CURB10AN1 13W27 x Hinged 8 in height T1CURB30AN1 17W46 x x 18 in height T1CURB32AN1 17W47 x x x x 24 in height T1CURB33AN1
46. CONNECT ALL POWER BEFORE SERVICING HEAT JACK UNIT ECONOMIZER __ 955 VACK TEST J132 JAGK BLOVER EXHAUST FAN MOTOR 20 CONTACTOR BLOWER K65 I 2 RELAY EXHAUST FAN 2 IPLUG UNIT HEAT OCG 8 PLUG EXHAUST Pers EQUIPMENT PIs2 PLUG EXHAUST FAN MOTOR GROUND COMPRESSOR MONITOR LI Le s e L3 T H 8 34 PRES 3 ir TRANSFORMER CONT ROL FIELD WIRING POWER SUPPLY DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED WIRING DIAGRAM 1 06 COMBINATION PACKAGED ROOFTOP TCA TGA 036 048 060 072 1 208 250 60 5 BELT DRIVE HEA 00 ON 036 048 060 072 Supersedes Form New rex Seeed ere 535 046W Litho U S A Page 45 TCA036 072 amp J VOLTAGE UNIT DIAGRAM gt 8 NOTE IF ANY WIRE IN THIS APPLIANCE IS REPLACED IT MUST BE REPLACED WITH WIRE OF LIKE SIZE RATING TERMINATION AND INSULATION THICKNESS WARNING ELECTRIC SHOCK HAZARD CAN CAUSE INJURY ACCORDANCE WITH NATIONAL AND LOCAL CODES um DISCONNECT ALL POWER BEFORE SERVICING R iis eooo o ST rcs L3 T p 600 ee RED T4 3 7 GROUND BLACK zo FIELD WIRING 5 1 POWER SUPPLY 5 3 12 5 4 2 L3 T A BELT DRIVE 036 048 060 072
47. EFFICIENCY TCA024S Voltage 60hz Compressor Outdoor Fan Motor Rated Load Amps Locked Rotor Amps Full Load Amps Locked Rotor Amps Service Outlet 115V GFI Indoor Blower Motor 1 Maximum Overcurrent Protection 2 Minimum Circuit Ampacity Unit Fuse Block Disconnect Kit Horsepower Rated Load Amps Locked Rotor Amps Unit Only 7 5 kW 10 kw Unit Only 7 5 kW 10 kw Hinged 0 10 kW Standard Access 0 10 kW 208 230V 1ph 10 4 54 1 7 3 1 15 25 1 7 2 2 25 45 60 17 42 55 28W68 20W21 20W15 TCA030S 208 230V 1ph 14 1 68 1 7 3 1 15 25 17 22 35 45 60 22 42 55 17W94 20 21 20W15 Page 21 ELECTRICAL ELECTRIC HEAT DATA 3 TON 3 TON BASIC EFFICIENCY TCA036B Voltage 60hz 208 230V 3ph 460V 3ph Compressor Rated Load Amps 10 3 4 3 Locked Rotor Amps 75 0 40 0 Outdoor Fan Full Load Amps 1 7 1 1 Motor Locked Rotor Amps 3 1 2 2 Power Horsepower 75 75 Exhaust Full Load Amps 5 0 22 Locked Rotor Amps 7 8 34 Indoor Blower Horsepower 5 1 5 2 5 1 5 2 Motor Rated Load Amps 3 1 57 7 5 1 5 2 8 34 Locked Rotor Amps 6 8 40 46 9 3 8 20 20 4 Service Outlet 115V GFI amp rating 15 15 Maximum Unit Only 25 30 30 15 15 15 Overcurrent with power 0 kW 30 35 35 15 15 15 Eretoction exhaust 7 5 kw 35 40 40 20 20 20 15 kW 60 60 70 30 30 30 Minimum Unit Only 18 21 23 8 10 10 with power 0 kW 23 26 28 11 12 13 exhaust 7 5 kW 33 36 3
48. G DIFFUSER AIR THROW DATA Air Economizer Electric Heat Air Volume cfm 1 Effective Throw ft Model No RTD9 65 FD9 65 1200 0 04 0 06 1200 11 18 16 22 1400 0 04 0 09 1400 12 19 17 24 1600 0 04 0 12 1600 12 20 18 25 1800 0 05 0 15 1800 13 21 20 28 2000 0 05 0 18 5000 14 23 21 29 2200 0 05 0 20 2200 16 25 22 30 2400 0 05 0 22 2600 0 06 0 24 Model No RTD11 95 FD11 95 2800 0 06 0 26 2600 24 29 19 24 3000 0 06 0 28 2800 25 30 20 28 3000 27 33 21 29 1 Effective throw based on terminal velocities of 75 ft per minute CEILING DIFFUSERS AIR RESISTANCE in w g RTD9 65 Step Down Diffuser FD9 65 RTD11 95 Step Down Diffuser FD11 95 Air Volume cfm 2 Ends 1 Side amp All Ends amp Flush 2 Ends 1 Side amp Ends 8 Flush Open 2 Ends Open Sides Open Diffuser Open 2 Ends Open Sides Open Diffuser 800 0 15 0 13 0 11 0 11 1000 0 19 0 16 0 14 0 14 1200 0 25 0 20 0 17 0 17 1400 0 33 0 26 0 20 0 20 1600 0 43 0 32 0 20 0 24 1800 0 56 0 40 0 30 0 30 0 13 0 11 0 09 0 09 2000 0 73 0 50 0 36 0 36 0 15 0 13 0 11 0 10 2200 0 95 0 63 0 44 0 44 0 18 0 15 0 12 0 12 2400 0 21 0 18 0 15 0 14 2600 0 24 0 21 0 18 0 17 2800 0 27 0 24 0 21 0 20 3000 0 32 0 29 0 25 0 25 20 ELECTRICAL ELECTRIC HEAT DATA 2 2 5 TON 2 AND 2 5 TON STANDARD
49. HE3 END OF FIRST STAGE HEAT 5 6 7 Heating demand is satisfied Terminal W1 in the ther mostat is de energized Electric heat contactor K15 is de energized 7 5kW units N O contacts K15 1 open de energizing 15kW units 15 1 and K15 2 open de energizing HE2 and 22 5kW units K15 1 K16 1 and K16 2 open de ener gzing HE4 HE5 and 15 22 5 30 kW Y J and Voltage END OF FIRST STAGE HEAT 5 6 T Page 52 Heating demand is satisfied Terminal W1 in the ther mostat is de energized Electric heat contactor K15 is de energized 7 5kW and 15kW units N O contacts K15 1 open de energizing HE1 22 5kW and 30kW units N O contacts K15 1 opende energizing HE2 and HE3 ELECTRONIC ELECTROMECHANICAL THERMOSTAT 24V POWER ECONOMIZER BLOWER 6 ew i HEAT 1 WI HEAT 2 W2 Cee ee COOL I YI 24V COMMON iP3___ PLUG LESS ECONOMIZER R ENSOR REMO THERMOS TERMINAL STRIP CLASS 11 VOLTAGE THERMOSTAT SUPPLIED BY USER ZX REMOVE WHEN ECONOMIZER IS USED J3 MAXIMUM LOAD 20VA 24VAC CLASS II T7300 THERMOSTAT TBB220 TOUCHSCREEN THERMOSTAT TIME CLOCK CONTACTS CLOSED OCCUPIED DESIGNATES OPTIONAL WIRING CLASS II FIELD WIRING WIRING DIAGRAM ACCESSORIES ELECTRONIC OR ELECTROMECHANICAL THERMOSTAT T SERIES UNITS A BOX ECONOMIZER SECTION e 63550570 C Litho U S A
50. IGH TERMINAL 1 lb STATIC APPLICATIONS REMAINS AT COMMON 7 BLOWER MOTOR doe BLOWER SHAFT 460 575V UNITS Disconnect isolation lead before moving speed tap wire Tape exposed end of isolation lead and secure away from other components FIGURE 6 C Determining Unit CFM Belt Drive Blowers 1 The following measurements must be made with air fil ters in place and no cooling demand 2 With all access panels in place measure static pres sure external to unit from supply to return 3 Measure the indoor blower wheel RPM 4 Referring to the blower tables starting on Page 12 use static pressure and RPM readings to determine unit CFM Use air resistance table when installing units with any of the options or accessories listed 5 The blower RPM can be adjusted at the motor pulley Loosen Allen screw and turn adjustable pulley clock wise to increase CFM Turn counterclockwise to de Page 30 crease CFM See figure 9 Do not exceed minimum and maximum number of pulley turns as shown in table 1 TABLE 1 MINIMUM AND MAXIMUM PULLEY ADJUSTMENT Min Turns Open Max Turns Open D Blower Belt Adjustment Maximum life and wear can be obtained from belts only if proper pulley alignment and belt tension are main tained Tension new belts after a 24 48 hour period of op er
51. M RPM BHP Field Furnished Low Static Drive Kit 2 1200 570 0 15 655 0 20 885 0 45 955 0 55 1015 0 65 1075 0 75 1300 605 0 20 680 0 25 900 0 50 965 0 60 1030 0 70 1090 0 80 1400 640 0 25 710 0 30 920 0 55 985 0 65 1045 0 75 1100 0 85 1500 675 0 25 740 0 35 940 0 60 1000 0 70 1060 0 80 1115 0 90 900 0 55 960 0 65 1020 0 75 1080 0 85 805 0 45 985 0 70 1040 0 80 1095 0 90 1800 785 0 45 840 0 50 955 1010 0 80 1065 0 90 1115 1 00 1900 820 0 50 875 0 60 980 1035 0 85 1090 0 95 1140 1 10 910 0 65 1065 0 95 1115 1 05 1165 1 15 0 90 to 1 60 in w g sic Efficiency Down Flow TCA048B Air External Static in w g Volume 0 90 1 0 1 20 1 30 1 40 1 50 1 60 cfm RPM RPM BHP RPM RPM RPM RPM BHP RPM BHP High Static Drive Kit 6 Field Furnished 1200 1135 0 85 1190 1 00 1290 1 25 1340 1 35 1385 1 50 1475 1 80 1300 1145 0 90 1200 1 05 1300 1 30 1350 1 45 1395 1 55 1485 1 85 1400 1160 0 95 1210 1 10 1310 1 35 1360 1 50 1405 1 65 1490 1 90 1500 1170 1 00 1225 1 15 1325 1 40 1370 1 55 1415 1 70 1500 2 00 1600 1185 1 10 1235 1 20 1335 1 50 1515 2 10 1700 1200 1 15 1255 1 30 1350 1 55 1440 1 85 1480 2 00 1525 2 15 1800 1220 1 25 1270 1 35 1365 1 65 1410 1 80 1450 1 90 1495 2 10 1535 2 25 1900 1550 2 35 2000 1260 1 40 1305 1 55 1 70 1440 2 00 1480 2 10 1520 2 25 1560 2 45 0 10 to 0 80 in
52. M 2 06 ACCESSORIES MOTORIZED OAD FOR TCA TGA UNITS ECONOMIZER SECTION D2 Supersedes Form No New Form No 534 489W 2006 Litho U S A SEQUENCE OF OPERATION OPERATION Occupied Mode 1 24 volt signal from terminal on TB1 opens B7 dampers to minimum position Unoccupied Mode 2 Dampers remain closed Page 55
53. NIT COMPONENTS All 2 through 6 ton 7 through 21 kW units are build to order units BTO The TCA unit components are shown in figure 1 All units come standard with removable unit panels All L1 L2 and L3 wiring is color coded L1 is red L2 is yellow and L3 is blue A Control Box Components TCA control box components are shown in figure 2 The control box is located in the upper right portion of the com pressor compartment 1 Control Transformer T1 All use a single line voltage to 24VAC transformer mounted in the control box Transformer supplies power to control circuits in the unit The transformer is rated at 70VA and is protected by a 3 5 amp circuit breaker CB8 The 208 230 Y voltage transformers use two 208 230V TRANSFORMER BLUE YELLOW SECONDARY primary voltage taps as shownin figure 3 while 460 G and 575 J voltage transformers MUN use a single primary voltage tap ORANGE PRIMARY FIGURE 3 BLACK 2 Transformer T4 J voltage Al J 575 voltage direct drive units use transformer 4 mounted in the control box T4 is a line voltage to 460V to pow er the indoor blower It is connected to line voltage and is pow ered at all times 3 Terminal Strip TB1 All indoor thermostat connections will be to TB1 located in the control box For thermostats without occupied and unoccupied modes a factory installed jumper across ter minals R and OC should be in place 4 Fan Capacito
54. OTE Net capacity includes evaporator blower motor heat deduction Gross capacity does not include evaporator blower motor heat deduction 1 Certified in accordance with the USE certification program which is based on ARI Standard 210 240 95 F outdoor air temperature and 80 F db 67 F wb entering evaporator air minimum external duct static pressure 2 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270 Page 5 SPECIFICATIONS DIRECT DRIVE BLOWER General Data Nominal Tonnage Model No Efficiency Type Cooling Gross Cooling Capacity Performance Btuh 1 Net Cooling Capacity Btuh ARI Rated Air Flow cfm 2 Sound Rating Number dB Total Unit Power kW 1 SEER Btuh Watt 1 EER Btuh Watt Type Charge Furnished Refrigerant Compressor Type one per unit Outdoor Coil Net face area sq ft Tube diameter in Number of rows Fins per inch Motor HP Motor rpm Outdoor Coil Fan Total motor watts Diameter in No of blades Total air volume cfm Indoor Coil Net face area sq ft Tube diameter in Number of rows Fins per inch Drain Connection no and size in Expansion device type Indoor Blower Nominal Motor HP Wheel nominal diameter x width in Type Number and size in Filters Electrical Characteristics 60 Hz 3 Ton TCA036B2D TCA036S2D Basic Standard 37 400 38 000 36 000 36 600 1 200 1 200 81 75 3 6 3 2 11 0 13 0 10 0 11 6 R 22
55. OWER SUPPLY DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLED EXHAUST WIRING DIAGRAM FAN MOTOR COMBINATION PACKAGE D ROOUF TOP TCA TGA 024 030 036 048 060 1 P 208 230 60 1 HEAT CUUL SECTION B33 BELT DRIVE Supersedes Form No New Form No 036 048 060 535 045 2007 Litho USA Le Li Page 44 9 TCA036 072 VOLTAGE UNIT DIAGRAM Ay NOTE FOR USE WITH COPPER CONDUCTORS ONLY REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT PROTECTION SIZE S40 IS NOT REQUIRED ON 072 UNITS IMPORTANT TO PREVENT MOTOR BURNOUT NEVER CONNECT MORE THAN ONE MOTOR LEAD TO ANY ONE CONNECTION TAPE UNUSED MOTOR LEADS ECONOMIZER Q BLOWER 6 HEAT 1 WI HEAT 2 W2 A COOL 1 Y 549 FOR REMOTE MOUNTED SMOKE DETECTORS 7 amp A64 LOAD 0 1 24VAC CLASS II EACH A PI8 J2 8 9 AND P2 ARE USED ON TCA UNITS ONLY A17 ONLY OR A64 ONLY HOOKUP A17 AND A64 HOOKUP PI8 0108 8109 Bt MOTOR OUTDOOR FAN D MOTOR DAMPER lt ECONOMIZER BIO MOTOR EXHAUST FAN NOTE IF ANY WIRE IN THIS APPLIANCE IS REPLACED IT MUST BE REPLACED WITH WIRE OF LIKE SIZE RATING TERMINATION AND INSULATION THICKNESS WARNING ELECTRIC SHOCK HAZARD CAN CAUSE INJURY OR DEATH UNIT MUST BE GROUNDED IN ACCORDANCE WITH NATIONAL AND LOCAL CODES DIS
56. SURES 9 Do not use the approach method if system pressures E vs do not match pressures in tables 4 through 12 The ap Temp E Dis 10 psig Suct 5 psig proach method is not valid for grossly over or under charged systems TABLE 13 APPROACH TEMPERATURE Liquid Temp Minus Ambient Temp 5 F 1 2 8 0 5 6 1 3 3 0 5 036B 14 F 1 7 8 C 0 5 0365 0485 7 1 3 9 0 5 048 BF 1 4 4 0 5 060 GENEE 060S 9 F 1 5 0 0 5 0725 10 F 1 5 6 05 36 V SYSTEMS SERVICE CHECKS A Cooling System Service Checks TCA units are factory charged and require no further adjust ment however charge should be checked periodically us ing the approach method The approach method compares actual liquid temperature with the outdoor ambient temper ature See section IV CHARGING NOTE When unit is properly charged discharge line pres sures should approximate those in tables 4 through 12 VI MAINTENANCE The unit should be inspected once a year by a qualified ser vice technician 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 ACAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dan gerous operation Verify proper ope
57. T1EH 7 5 10 15 22 5 P Voltage HEATING ELEMENTS 1 Terminal Strip 2 is energized when the unit discon nect closes TB2 supplies line voltage to electric heat elements HE1 and TB3 TB3 supplies line voltage to HE2 through HE6 Elements are protected by fuses F3 and F42 FIRST STAGE HEAT 2 3 Heating demand initiates at W1 in thermostat 24VAC is routed from the indoor thermostat through primary limit 15 Electric heat contactor K15 and heat relay K9 are energized K9 energizes blower con tactor K3 and economizer 7 5kW units N O contacts K15 1 close energizing HE1 10kW 15kW units K15 1 and K15 2 close energizing HE2 and HE3 22 5kW units K15 1 K16 1 and K16 2 close energiz ing HE4 HE5 and HE6 Sequence of Operation T1EH 7 5 HEATING ELEMENTS 1 Terminal Strip TB2 is energized when the unit discon nect closes TB2 supplies line voltage to electric heat elements HE1 and TB3 TB3 supplies line voltage to HE2 Elements are protected by fuses and or F42 FIRST STAGE HEAT 2 3 Heating demand initiates at W1 in thermostat 24VAC is routed from the indoor thermostat through primary limit 15 Electric heat contactor K15 and heat relay K9 are energized Heat relay K9 energizes blower contactor K3 and economizer 7 5kW and 15kW units contacts K15 1 close en ergizing HE1 22 5kW and 30kW units contacts K15 1 close energizing HE2 and
58. TIDRKTOO6 1 1071 1429 rom 20W86 Drive Kit 7 T1DRKT007 1 1212 1548 rom 20W87 Drive Kit 8 TIDRKTOO8 1 1193 1591 20W88 CABINET Coil Guards 1 20 1 17W87 x x T1GARD20N 1 17W88 Hail Guards T1GARD10A 1 17W89 x T1GARD10N 1 17W90 Hinged Access Panels Om Om CONTROLS Dirty Filter Switch COSWCHOOAE 1 30K48 x x Smoke Detector Return TISNSR41AN1 94M18 x x ECONOMIZER Economizer Economizer Single Enthalpy Control T1ECON30A 1 16W86 9 06 Order Outdoor Air Hood Separately T1ECON30N 1 16W89 amp Horizontal Economizer Conversion Kit T1HECKOOAN1 17W45 x Outdoor Air Hood T1HOOD30A 1 16W87 9 9 9 0 T1HOOD30N 1 16 90 9 Economizer Controls Differential Enthalpy Sensor T1SNSR60AN1 17W71 Single Temperature Control TASEK10 15 76 37 Differential Temperature Control Order 2 TASEK10 15 76 37 x NOTE The model numbers that appear here are for ordering field installed accessories only Field Installed or Configure to Order factory installed Configure to Order Factory Installed 1036B models only X Field Installed 2 2 hp blower motor is not available for 208 230V 1ph applications Page 2 OPTIONS ACCESSORIES Item Catalog 024 030 03
59. V 1ph 208 230V 3ph 460V 3ph 575V 3ph Compressor Rated Load Amps 20 2 12 2 6 1 4 2 Locked Rotor Amps 137 0 83 1 41 0 33 0 Outdoor Fan Full Load Amps 1 7 1 7 1 1 0 7 Motor Locked Rotor Amps 3 1 3 1 22 1 3 Power Horsepower 75 75 75 75 Full Load Amps 5 0 5 0 22 15 Locked Rotor Amps 78 78 3 4 2 9 Service Outlet 115V GFI amp rating 15 15 15 15 Indoor Blower Horsepower 5 1 5 5 1 5 2 5 1 5 2 5 1 5 2 Motor Rated Load Amps 3 1 11 5 3 1 57 75 15 28 34 15 24 27 Locked Rotor Amps 6 8 55 6 8 40 469 38 20 204 38 15 162 Maximum Unit Only 50 30 35 15 15 15 15 rent with power OkW 50 60 35 20 15 15 15 rotection exhaust 7 5 50 60 35 20 15 15 15 15kW 90 60 30 25 25 25 Minimum Unit Only 31 9 9 with power OkW 36 44 26 15 9 10 11 exhaust 7 5 kW 50 60 33 19 13 14 15 15 89 99 56 30 22 23 24 Unit Fuse Block Unit Only 17 97 17W97 18W01 18 01 18W02 18W06 18W06 18W06 18W06 18 06 18W06 with power exhaust 17W97 17W98 18W02 NS OS LR ette 18W06 Disconnect Standard 0 7 5 kW 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 201 15 20W15 20W15 Access 5 kW 20W16 ES RAS NE 20W15 20W15 20W15 20W15 Hinged 0 7 5 kW 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 15 kW 20 22 5 20W21 204121 20W21 Pe Re ae 20W21 NOTE Extremes of operating range are plus and minus 109 of line voltage 1 HACR type breaker or fuse 2 Refer to National or Can
60. a factory or field installed economizer The evaporators are slab type and use thermostatic expansion valve as the primary refrigerant metering device Each evaporator is also equipped with en hanced fins and rifled tubing In all units each compressor is protected by a freezestat figure 4 on each evaporator coil A low ambient switch S11 and high pressure switch S4 is available as a field accessory for additional compressor protection 1 Compressor B1 All TCA024 072 units except TCA036B use one scroll compressor See SPECIFICATIONS and ELECTRICAL table of contents or compressor nameplate for com pressor specifications The 036B is equipped witha recipro cating compressor A WARNING Electrical shock hazard Compressor must be grounded Do not operate without protective cover over terminals Disconnect power before removing protective cover Discharge capacitors before ser vicing unit Failure to follow these precautions could cause electrical shock resulting in injury or death Each compressor is energized by a corresponding com pressor contactor NOTE Refer to the wiring diagram section for specific unit operation 2 Freezestat S49 Each unit is equipped with a low temperature switch freezes tat located on a return bend of each evaporator coil The freezestat is wired in series with the compressor contac tor K1 The freezestat is a SPST N C auto reset switch which opens at 29 F
61. adian Electrical Code manual to determine wire fuse and disconnect size requirements Page 23 ELECTRICAL ELECTRIC HEAT DATA 5 TON 5 TON BASIC EFFICIENCY TCA060B Voltage 60hz 208 230V 3ph 460V 3ph Compressor Rated Load Amps 18 6 9 0 Locked Rotor Amps 128 0 63 0 Outdoor Fan Full Load Amps 24 1 3 Locked Rotor Amps 47 24 Power Horsepower 75 75 Exhaust Full Load Amps 5 0 22 Locked Rotor Amps 78 3 4 Service Outlet 115V GFI amp rating 15 15 Indoor Blower Horsepower 75 1 5 2 75 1 5 2 Rated Load Amps 4 2 5 7 7 5 22 2 8 34 Locked Rotor Amps 9 6 40 46 9 5 2 20 204 Maximum Unit Only 45 45 50 20 20 20 Overcurrent with power 50 50 50 25 25 25 Protection exhaust 7 5 kW 50 50 50 25 25 25 15 kW 60 60 70 30 30 30 22 5 kW 80 90 90 40 45 45 Minimum Unit Only 30 32 34 15 16 16 iier ty with power 0 kW 35 37 39 17 18 19 exhaust 7 5 kW 35 37 39 17 18 19 15 kW 57 59 61 28 29 30 22 5 kW 80 81 84 40 41 41 Unit Fuse Block Unit Only 18W04 18W04 18W05 18W07 18W07 18W07 with power exhaust 18W05 18W05 18W05 18W08 18W08 18W08 Disconnect Standard Access 20W15 20W15 20W15 20W15 20W15 20W15 Hinged Access 20W21 20W21 20W21 20W21 20W21 20W21 5 TON STANDARD EFFICIENCY TCA060S Voltage 60hz 208 230V 1ph 575V 3ph Compressor Rated Load Amps 25 3 15 4 7 1 5 3 Locked Rotor Amps 141 0 110 0 52 0 38 9 Outdoor Fan Full Load Amps 24 24 1 3 1 0 Motor Locked Rotor Amps 47 47 24 1 9 Power Horsep
62. approach tem perature less than value shown indicates an over charge Page 35 TABLE 4 TABLE 9 TCA024S R22 NORMAL OPERATING PRESSURES TCA048S R22 NORMAL OPERATING PRESSURES Outdoor Coil Discharge Suction 5 Outdoor Coil Entering Air Temp 10 psig psig Entering Air 18 83 e Dis 10 psig Suct 5 psig t ae oe 8 9 F 20 8 a a 12 50 wr 235 8 FF 28 8 115 304 91 1055F 24 86 TABLE 5 TCA030S R22 NORMAL OPERATING PRESSURES TABLE 10 OutdoorCoil Discharge Suction 5 060 R22 NORMAL OPERATING PRESSURES Entering Air Temp 10 psig psig Outdoor Coil C Entering Air 65 F 157 85 Temp Dis 10 psig Suct 5 psig 75 F 182 86 85 F 210 87 95 F 241 88 105 F 275 90 115 F 311 91 TABLE 6 TCA036B R22 NORMAL OPERATING PRESSURES MEE 359 78 Outdoor Coil TABLE 11 Entering Air 0605 R22 NORMAL OPERATING PRESSURES Temp Dis 10 psig Suct 5 psig Outdoor Coil ii Temp Dis 10 psig Suct 5 psig MER DONNER _ pod 757 TABLE 7 TCA036S R22 NORMAL OPERATING PRESSURES Outdoor Coil Entering Air Temp Dis 10 psig Suct 5 psig TCA 072S R22 NORMAL OPERATING PRESSURES Outdoor Coil Entering Air Temp Dis 10 psig Suct 5 psig evr 15 79 BF 22 24 p sr 29 78 s 8 115 365 82 TCA048B R22 NORMAL OPERATING PRES
63. ase fan switch With fan switch in ON position blow ers will operate continuously 2 With fan switch in AUTO position the blowers will cycle with demand Blowers and entire unit will be off when system switch is in OFF position B Determining Unit CFM Direct Drive Blowers 1 The following measurements must be made with air fil ters in place and no cooling demand 2 With all access panels in place measure static pres sure external to unit from supply to return Add any additional air resistance for options and accessories shown in air resistance table on Page 20 3 Use figure 5 to determine the factory set blower speed BLOWER SPEED FACTORY SETTINGS 024 030 048 Units 1 Com 1 Com 1 Com 2 Hi 2 Hi 2 Hi 3 Med 3 Med 3 Low 4 Low 4 Low 4 Unused 036 Units 060 Units Factory Setting FIGURE 5 4 Use the blower tables starting on Page 9 the mea sured static pressure and the factory set blower speed to determine CFM If CFM is lower than the de sign specified CFM move the lead from speed tap 3 or 4 to speed tap 2 See figure 6 Note Speed tap 3 can be used on 036 units if speed tap 2 delivers more CFM than required by design specification For 460 575V units remove the isolation lead from speed tap 2 before moving the wire to speed tap 2 Tape the ex posed end of the isolation lead and secure away from other components DIRECT DRIVE HIGH STATIC APPLICATIONS MOVE CONNECTOR TO TERMINAL 2 FOR H
64. ation This will allow belt to stretch and seat grooves Make sure blower and motor pulley are aligned as shown in figure 7 1 Loosen four bolts securing motor base to mounting frame See figure 9 2 To increase belt tension Slide blower motor downward to tighten the belt This increases the distance between the blower motor and the blower housing 3 To loosen belt tension Slide blower motor upward to loosen the belt This de creases the distance between the blower motor and the blower housing 4 Tighten four bolts securing motor base to the mounting frame 5 Check and adjust belt alignment as needed See figure 7 PULLEY ALIGNMENT SSeS f BLOWER PULLEY NOT ALIGNED FIGURE 7 MOTOR BELT PULLEY E Check Belt Tension Overtensioning belts shortens belt and bearing life Check belt tension as follows 1 Measure span length X See figure 8 2 Apply perpendicular force to center of span X with enough pressure to deflect belt 1 64 for every inch of span length or 1 5mm per 100mm of span length MEASURE BELT TENSION DEFLECTION 1 64 PER INCH OF SPAN OR 1 5mm PER 100mm OF SPAN FIGURE 8 Example Deflection distance of a 40 span would be 40 64 or 5 8 Example Deflection distance of a 400mm span would be 6mm 3 Measure belt deflection force For a used belt the deflection force should be 5 Ibs 35kPa A new belt deflection force should be 7 Ibs 48kPa A force b
65. certification program which is based on ARI Standard 340 360 95 F 35 C outdoor air temperature and 80 F 27 C db 67 F 19 C wb entering evaporator air minimum external duct static pressure 3 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor hp required Maximum usable hp of motors furnished are shown In Canada nominal motor hp is also maximum usable motor hp output If motors of comparable hp are used be sure to keep within the service factor limitations outlined on the motor nameplate 5 2 hp blower motor is not available for 208 230V 1ph applications Page 8 BLOWER DATA DIRECT DRIVE 2 2 5 Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance economizer etc 2 Any field installed accessories air resistance electric heat duct resistance diffuser etc Air Volume cfm at Various Blower Speeds Static 208 VOLTS 230 VOLTS ressure in w g High Medium Low High Medium Low 2 and 2 5 Ton Standard Efficiency Down Flow TCA024S and TCA030S 0 0 1125 910 0 1 1110 875 0 2 1085 845 0 3 1055 815 0 4 1010 780 0 5 955 740 0 6 895 690 0 7 830 0 8 755 0 9 770 920 680 1 0
66. cess 0 7 5 kW 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 15 kW 20W16 20W16 ES a ROA 20W15 20W15 NOTE Extremes of operating range are plus and minus 10 of line voltage 1 HACR type breaker or fuse 2 Refer to National or Canadian Electrical Code manual to determine wire fuse and disconnect size requirements Page 22 ELECTRICAL ELECTRIC HEAT DATA 4 TON 4 TON BASIC EFFICIENCY TCA048B Voltage 60hz 208 230V 3ph 460V 3ph Compressor Rated Load Amps 12 8 6 4 Locked Rotor Amps 91 0 46 0 Outdoor Fan Full Load Amps 1 7 1 1 Motor Locked Rotor Amps 3 1 2 2 Power Horsepower 75 75 Extouss Full Load Amps 5 0 22 Locked Rotor Amps 78 3 4 Service Outlet 115V amp rating 15 Indoor Blower Horsepower 5 5 1 5 2 Motor Rated Load Amps 3 1 1 5 28 34 Locked Rotor Amps 6 8 3 8 20 20 4 Maximum Unit Only 30 15 15 15 rent with power 35 40 40 15 20 20 rotection exhaust 7 5 kW 35 40 40 20 20 20 15 kw 60 60 70 30 30 30 Minimum Unit Only 21 11 12 13 with power 26 29 31 13 15 15 exhaust 75 kW 33 36 39 16 18 19 15 kW 56 59 61 28 29 30 Unit Fuse Block Unit Only 18W01 18W02 18W02 18W06 18W06 18W06 with power exhaust 18W02 18W03 18W03 18W06 18W07 18W07 Disconnect Standard Access 20W15 20W15 20W15 20W15 20W15 20W15 Hinged Access 20W21 20W21 20W21 20W21 20W21 20W21 4 TON STANDARD EFFICIENCY TCA048S Voltage 60hz 208 230
67. ch or 24 inch height roof mounting frame is used The roof mounting frames are recommended in all other applications but not required If the TCA units are not mounted on a flat roof surface they MUST be supported under all edges and under the middle of the unit to prevent sagging The units MUST be mounted level within 1 16 per linear foot or 5mm per meter in any direction The assembled mounting frame is shown in figure 14 Refer to the roof mounting frame installation instructions for details of proper assembly and mounting The roof mounting frame MUST be squared to the roof and level before mounting Ple num system MUST be installed before the unit is set on the mounting frame Typical roof curbing and flashing is shown in figure 15 Refer to the roof mounting frame installation instruc tions for proper plenum construction and attachment ASSEMBLED ROOF MOUNTING FRAME FIGURE 14 TYPICAL FLASHING DETAIL UNIT BASE BOTTOM UNIT BASE RAIL FIBERGLASS INSULATION Furnished COUNTER FLASHING NAILER STRIP Field Supplied Furnished CANT STRIP Field Supplied RIGID INSULATION Field Supplied MOUNTING FRAME Extends around entire perimeter of unit ROOFING MATERIAL FIGURE 15 B Transitions Optional supply return transitions T1TRAN10AN1 is available for use with the TCA 2 2 5 3 4 and 5units and the T1TRAN20N 1 is available for the 6 ton units utilizing optional TTCURB roof mounting
68. cleanser Flush coil and condensate drain with water taking care not to get insulation filters and return air ducts wet E Condenser Coil Clean condenser coil annually with detergent or commer cial coil cleaner and inspect monthly during the cooling sea son Condenser coils are made of single and two formed slabs On units with two slabs dirt and debris may become trapped between the slabs To clean between slabs care fully separate coil slabs and wash them thoroughly See fig ure 13 Flush coils with water following cleaning Note Remove all screws and gaskets prior to cleaning pro cedure and replace upon completion Page 37 x lt z d 2 CLEAN CONDENSER COIL ENDPLATE IS SECURED TOP VIEW SUPPLY AIR BLOWER 2 CONDENSER ACCESS PANEL CONDENSER COILS FIGURE 13 Page 38 Remove unit top panel and condenser section access panel Remove screws securing coil end plate to mullion Remove clips connecting coils slabs and separate slabs 3 4 76 102mm Clean coils with detergent or commercial coil cleaner Rinse thoroughly with water and reassemble VII ACCESSORIES The accessories section describes the application of most of the optional accessories which can be factory or field installed to the TCA units A T1CURB When installing either the TCA units on a combustible surface for downflow discharge applications the Lennox T1CURB 8 inch 14 inch 18 in
69. e NO TAG 6 Heating Elements HE1 through HE6 Heating elements are composed of helix wound bare nich rome wire exposed directly to the airstream Three ele ments are connected in a three phase arrangement The elements in 208 230V units are connected in a Delta arrangement Elements in 460 and 575V units are connected in Wye arrangement Each stage is en ergized independently by the corresponding contactors located on the electric heat vestibule panel Once ener gized heat transfer is instantaneous High temperature protection is provided by primary and redundant high temperature limits and overcurrent protection is pro vided by fuses ELECTRIC HEAT ELEMENTS FIGURE 10 7 and F42 Fuse F3 and F42 are housed in a fuse block which holds two or three fuses Each F3 fuse is connected in series with each leg of electric heat Figure 11 and table 3 show the fuses used with each electric heat section 8 Unit Fuse Block amp Fuse F4 Three line voltage fuses F4 provide short circuit and ground fault protection to all cooling components in the units with electric heat The fuses are rated in accor dance with the amperage of the cooling components The F 4 fuse block is located inside a sheetmetal enclosure 9 Electric Heat Relay K9 K9 is a N O SPDT pilot relay intended to electrically iso late the unit s 24V circuit
70. e not available or to check the charge use the following procedure 1 Attach gauge manifolds and operate unit in cooling mode until system stabilizes approximately five min utes Make sure outdoor air dampers are closed 2 Use a thermometer to accurately measure the outdoor ambient temperature 3 Apply the outdoor temperature to tables 4 through 12 to determine normal operating pressures 4 Compare the normal operating pressures to the pres sures obtained from the gauges Minor variations in these pressures may be expected due to differences in installations Significant differences could mean that the system is not properly charged or that a problem exists with some component in the system Correct any system problems before proceeding If discharge pressure is high remove refrigerant from the system If discharge pressure is low add refrigerant to the system 1 Add or remove charge in increments Allow the system to stabilize each time refrigerant is added or removed Use the following approach method along with the nor mal operating pressures to confirm readings o 1 D Charge Verification Approach Method 7 Using the same thermometer compare liquid tempera ture to outdoor ambient temperature Approach Temperature Liquid temperature minus ambient temperature 8 Approach temperature should match values in table 13 An approach temperature greater than value shown indicates an undercharge An
71. elow these values indicates an underten sioned belt A force above these values indicates an overtensioned belt F Field Furnished Blower Drives See blower data tables for field furnished blower drives to determine BHP and RPM required See drive kit table on Page 19 to determine the drive kit number Page 31 2 2 BLOWER ASSEMBLY TO INCREASE CFM TO DECREASE CFM NS LOOSEN ALLEN SCREW amp TURN PULLEY TURN PULLEY CLOCKWISE COUNTERCLOCKWISE NN ORE E SIDE VIEW 87 ADJUST ALLEN SCREW PULLEY TO INCREASE BELT TENSION 1 Loosen four bolts securing motor base to mounting frame 2 Slide the motor downward to tighten the belt 3 Tighten four bolts on motor base LOOSEN FOUR BOLTS AND SLIDE BLOWER MOTOR DOWNWARD TO TIGHTEN BELT FIGURE 9 Page 32 D ELECTRIC HEAT COMPONENTS Electric heat matchups are found in the ELECTRICAL DATA tables See table of contents All electric heat sections consist of electric heating ele ments exposed directly to the airstream See figure 10 See figure 11 for vestibule parts arrangement 1 Contactors K15 K16 All contactors are double break and either single double or three pole see diagram and equipped with a 24VAC coil The coils in the K15 and K16 contactors are energized by the indoor thermostat In all units K15 energizes the heating elements while in the 22 5 kW units K15 and K16 energize the heating elements simultaneously 2 H
72. ensors for installation A6 Enthalpy Control LED s A steady green Free Cool LED indicates that outdoor air is suitable for free cooling When an optional IAQ sensor is installed a steady green DCV LED indicates that the IAQ reading is higher than set point requiring more fresh air See figure 18 Page 40 ENTHALPY CONTROLLER DAMPER MINI MUM POSITION IAQ MAXIMUM POSITION set higher than minimum position IAQ READING IS ABOVE SETPOINT IAQ SETPOINT OUTDOOR AIR SUITABLE LED FREE COOLING SETPOINT A Completely counterclockwise D Completely clockwise FIGURE 18 Free Cooling Setpoint Outdoor air is considered suitable when temperature and humidity are less than the free cooling setpoints shown in table 15 Setting A is recommended See figure 18 At set ting A free cooling will be energized when outdoor air is approximately 73 F 23 C and 50 relative humidity If in door air is too warm or humid lower the setpoint to B At set ting B free cooling will be energized at 70 F 21 C and 50 relative humidity When an optional A62 differential sensor is installed turn A6 enthalpy control free cooling setpoint potentiometer completely clockwise to position TABLE 15 ENTHALPY CONTROL SETPOINTS Control Setting Free Cooling Setpoint At 50 RH 7977370 9 maro FOST e ear TS Damper Minimum Position NOTE A jumper is factory installed between TB1 A1 A2 terminals to mai
73. f recovery recycling or re claiming must followed Fines and or tion may be levied for non compliance AWARNING Electric shock hazard cause injury or death Before attempting to perform any service or maintenance turn the electrical power to unit OFF at discon nect switch es Unit may have multiple power supplies Technical Publications Page 1 ELECTROSTATIC DISCHARGE ESD Precautions and Procedures A CAUTION Electrostatic discharge can affect electronic components Take precautions during unit installation and service to protect the unit s elec tronic controls Precautions will help to avoid control exposure to electrostatic discharge putting the furnace the control and the techni cian at the same electrostatic potential Neutral ize electrostatic charge by touching hand and all tools on an unpainted unit surface such as the gas valve or blower deck before performing any service procedure Table of Contents Options Page 2 Specifications Page 5 Blower Data Page 9 Electric Heat Electrical Data Page 21 Electric Heat Capacities Page 25 Unit Components Page 27 Placement and Installation Page 35 Start Up Operation Page 35 IV 0 35 V System Service Checks Page 37 VI Maintenance Page 37 VII
74. from the electric heat 24V circuit K9 is energized by the indoor thermostat K9 1 closes en ergizing contactor K15 Page 33 3 1 0075 460V 3P 15 A 600V T1EHO010 208 230V 1P 30 A 250V 30A 250V 2 208 230V 1P 40 A 250V 40A 250V oss Dow 1 0015 208 230V 1P 40 A 250V 40A 250V a 208 230V 3P 45 A 250V 45A 250V 22060122 1 00225 208 230V 3P 60 A 250V 60A 250V 460V 3P 50 A 600V 00 575V 3P 40 A 600V Wj wl mJ mJ o WO wo oJ 5 MT o ELECTRIC HEAT VESTIBULE PARTS ARRANGEMENT Heating Element Bank HE1 HE6 Secondary Limit S20 amp 157 Pilot Relay K9 HB K15 amp K16 o9 5 5 FIGURE 11 34 AND INSTALLATION Make sure the unit is installed in accordance with the installation instructions and all applicable codes See accessories section for conditions requiring use of the optional roof mounting frame 11 5 UP OPERATION A Preliminary and Seasonal Checks 1 Inspect all electrical wiring both field and factory installed for loose connections Tighten as required Refer to unit diagram located on inside of unit compressor access pan
75. igh Temperature Limits 15 Primary 15 is a SPST N C auto reset thermostat located on the back panel of the electric heat section above the heating elements S15 is the high temperature limit for the electric heat section When S15 opens indicating a problem in the system contactor K15 is de energized including K16 in 22 5 kW units When K15 is de energized all stages of heat are de energized See table 2 for S15 set points Set points are factory set and not adjustable TABLE 2 56 15 ZSV zsm DRED 3 High Temperature Limit S20 and S157 Secondary 20 and 157 are SPST N C manual reset thermostat s 20 and 157 are wired in series with the heating ele ments See T1EH wiring diagrams When either limit opens K15 and K16 are de energized When the contac tors are de energized all stages of heat are de energized The thermostat is factory set to open at 220 F 6 F 104 C 33 on a temperature rise and can be manu ally reset when temperature falls below 160 F 71 0 C See figure 11 for location 4 Terminal Strip TB2 Terminal strip TB2 is used for single point power installa tions only TB2 distributes power to TB3 Units with multi point power connections will not use TB2 5 Terminal Strip TB3 P and Y voltage units are equipped with terminal strip TB3 Electric heat line voltage connections are made to TB3 which distributes power to the electric heat components and is located on the vestibule See fig ur
76. in w g yes 0 90 1 10 1 20 1 30 1 60 RPM RPM BHP RPM RPM RPM RPM RPM BHP RPM High Static Drive Kit 5 1055 0 75 1105 1065 0 80 1115 0 90 1165 1 05 1085 0 90 1135 1095 0 95 1145 1 05 1195 1 20 1110 1 00 1160 1 10 1210 1 25 1125 1 05 1175 1 15 1220 1 30 090 1325 1 30 1340 100 1365 1210 1 15 1255 1245 1 30 1290 1 45 1330 1 60 1375 1255 1 40 1300 1 50 1340 1 65 1385 1265 1 45 1310 1 60 1355 1 75 1395 13 1 50 1 55 1 70 1 75 1 80 1 85 1365 1380 1395 1405 1415 1425 1435 1 60 1 75 2 05 BLOWER DATA BELT DRIVE 4 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g 4 Ton Basic Efficiency Down Flow 048 External Static in w g Volume 0 10 0 20 0 50 0 60 0 70 0 80 RPM RPM RPM RPM RPM RPM RP
77. ntain occupied status allowing mini mum fresh air When using an electronic thermostat or energy management system with an occupied unoccu pied feature remove jumper 1 Set thermostat to occupied mode if the feature is avail able Make sure jumper is in place between A45 control board TB1 terminals A1 and A2 if using a thermostat which does not have the feature 2 Rotate MIN POS SET potentiometer to approximate desired fresh air percentage Note Damper minimum position can be set lower than traditional minimum air requirements when an sensor is specified Dampers will open to DCV MAX setting if CO2 is above setpoint to meet traditional ventilation require ments 3 Measure outdoor air temperature Mark the point on the bottom line of chart 1 and label the point A 40 F 4 C shown 4 Measure return air temperature Mark that point on the top line of chart 1 and label the point B 74 F 23 shown 5 Measure mixed air outdoor and return air tempera ture Mark that point on the top line of chart 1 and label point C 70 F 21 C shown 6 Draw a straight line between points A and B 7 Draw a vertical line through point C 8 Draw a horizontal line where the two lines meet Read the percent of fresh air intake on the side 9 f fresh air percentage is less than desired adjust MIN POS SET potentiometer higher If fresh air percentage is more than desired adjust MIN POS SET potentiom
78. ntrol A6 DIVISION PANEL Controller adjusts the economizer dampers according FIGURE 20 to the gt levels The sensor is mounted next to the indoor thermostat or in the return air duct Refer to the indoor air F Power Exhaust Fans quality sensor installation instructions for proper adjust TIPWRE10A available for TCA 3 4 and 5 ton units and ment T1PWRE10N available for 6 ton units provide exhaust air pressure relief and also run when return air dampers are closed and supply air blowers are operating See figure 20 and installation instructions for more detail Page 43 Vill Wiring Diagrams and Sequence of Operation TCA024 060 P VOLTAGE UNIT DIAGRAM NOTE FOR USE WITH COPPER CONDUCTORS ONLY REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM DVERCURRENT PROTECTION SIZE Je 8 9 AND P2 ARE USED ON TCA UNITS ONLY A IMPORTANT TO PREVENT MOTOR BURNOUT NEVER CONNECT MORE THAN ONE MOTOR LEAD TO ANY ONE CONNECTION TAPE UNUSED MOTOR LEADS ECONOMIZER 24V POWER HEAT WD HEAT exwo ZA CONNECTIONS FOR REMOTE MOUNTED SMOKE DETECTORS 3 J18 17 amp 64 LOAD 0 1VA 24VAC CLASS II EACH 7S P18 Ay 17 ONLY OR A64 ONLY HOOKUP A17 AND 64 HOOKUP 83 1 0 Or L CUDL KYD DESCRIPTIUN KEY A6 0 10 STATE ENTHALPY 17 DETECTOR SMOKE
79. ower 7 24MAC is routed through TB1 to N C freezestat S49 and optional N C high pressure switch S4 Compressor contactor K1 is energized N O K1 1 close energizing compressor B1 Single Phase P Voltage Units Discharge line pressure rises to 275 psig dosing optional N O low ambient switch S1 1 energiz ing condenser fan B4 Optional start relay K31 is energized to help in start up of compressor B1 Three Phase Y Voltage Units Discharge line pressure rises to 275 psig closing optional N O low ambient switch S11 energiz ing condenser fan B4 Three Phase G J amp M Voltage Units Discharge line pressure rises to 275 psig closing optional N O low ambient switch S11 energiz ing condenser fan relay K10 contacts K10 1 close energizing condenser fan B4 Page 48 T1EH 7 5 10 15 22 5 kW VOLTAGE 24V POWER DESCRIPTION COMPONENT FUSE ELECTRIC HEAT F4 FUSE UNIT F42 FUSE ELECTRIC HEAT 2 1 ELEMENT ELECTRIC HEAT 1 HE2 ELEMENT ELECTRIC HEAT 2 ELEMENT ELECTRIC HEAT 3 HE 4 ELEMENT ELECTRIC HEAT 4 HES ELEMENT ELECTRIC HEAT 5 HE6 ELEMENT ELECTRIC HEAT 6 K9 1 RELAY HEAT K15 L2 EUNTACTUR ELECTRIC HEAT 1 K16 1 2 CONTACTOR ELECTRIC HEAT 2 Pe PLUG UNIT HEAT 515 SWITCH LIMIT PRIMARY ELECT HT 520 ISWITCH LIMIT SECONDARY ELECT HT 5157 SWITCH LIMIT SECUNDARY ELECT HT 2 TBe TERMINAL STRIP UNIT TB3 TERMINAL STRIP ELECTRIC HEAT CIRC 1 Fs
80. ower 75 75 Exnausi Full Load Amps 5 0 1 5 Locked Rotor Amps 78 2 9 Service Outlet 115V GFI amp rating 15 15 Indoor Blower Horsepower 75 1 5 75 1 5 2 Rated Load Amps 4 2 11 5 22 24 27 Locked Rotor Amps 9 6 55 5 2 15 16 2 Maximum Unit Only 60 70 15 15 15 cedar d with power 60 70 15 15 15 exhaust 75kW 60 70 15 15 15 15 kW 90 100 25 25 25 22 5 kW 150 150 35 35 35 Minimum Unit Only 44 51 12 12 12 with power OkW 44 51 12 13 13 pa exhaust 7 5kW 51 60 14 14 15 15 90 99 23 23 24 22 5 kW 129 138 32 32 33 Unit Fuse Block Unit Only 17W98 17W99 18W03 18W03 18W03 18W06 18 07 18W07 18W06 18W06 18W06 with power exhaust 17W98 17W99 nis 18W06 18W06 Disconnect Standard 0 7 5 kW 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 ACCESS 15 22 5 KW 20W16 20W16 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 20W15 Hinged 0 7 5 kW 20W21 20W21 20 21 20 21 20 21 20W21 20W21 20W21 20W21 20W21 20W21 15 22 5 KW 20W22 20W22 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20W21 20 21 NOTE Extremes of operating range are plus and minus 10 of line voltage 1 HACR type breaker or fuse 2 Referto National or Canadian Electrical Code manual to determine wire fuse and disconnect size requirements Page 24 ELECTRICAL ELECTRIC HEAT DATA 6 TON 6 TON STANDARD EFFICIENCY
81. peration and Adjustment section for proper method to check refrigerant charge Three Phase Scroll Compressor Voltage Phasing Three phase scroll compressors must be phased se quentially to ensure correct compressor and blower rota tion and operation Compressor and blower are wired in phase at the factory Power wires are color coded as fol lows line 1 red line 2 yellow line 3 blue 1 Observe suction and discharge pressures and blower rotation on unit start up 2 Suction pressure must drop discharge pressure must rise and blower rotation must match rotation marking If pressure differential is not observed or blower rotation is not correct 3 Disconnect all remote electrical power supplies 4 Reverse any two field installed wires connected to the line side of K1 contactor Do not reverse wires at blower contactor 5 Make sure the connections are tight Discharge and suction pressures should operate at their normal start up ranges C Safety or Emergency Shutdown Turn off power to unit IV CHARGING WARNING Do not exceed nameplate charge under any condition This unit is factory charged and should require no further adjustment If the system requires charge reclaim the charge evacuate the system and add required nameplate charge NOTE System charging is not recommended below 60 F 15 C In temperatures below 60 F 15 C the charge must be weighed into the system If weighing facilities ar
82. r C1 three phase Fan capacitors C1 is used to assist in the start up of con denser fan B4 Ratings will be on side of capacitor or outdoor fan motor nameplate 5 Dual Capacitor C12 single phase A single dual capacitor is used for both the outdoor fan and compressor see unit diagram The fan side and the compres sor side have different MF ratings See side of capacitor for rat ings 6 Compressor Contactor K1 In all TCA units K1 energizes compressors B1 in response to thermostat demand Three phase units use three pole double break contactors with a 24 volt coil Single phase units use single pole double break contactors with a 24 volt coil 7 Blower Contactor K3 On three phase TCA blower motors K3 is a two pole double break contactor with a 24VAC coil and on single phase blower motors K3is single pole double break contactor with a 24 volt coil energizes the indoor blower motor B3 in response to blower demand 8 Condenser Fan Relay K10 G J voltage Outdoor fan relay K10 is a DPDT relay with a 24VAC coil K10 energizes condenser fan B4 K10 is used with a low ambient kit only Page 27 TCA036 048 060 072 PLUMBING and COMPRESSOR EVAPORATOR COIL RETURN AIR CONDENSER COIL EXPANSION VALVE INDOOR BLOWER SECTION HEAT SECTION PROCESS TUBE used for charging CONTROL AND COMPONENTS SECTION
83. r External Static in w g ca 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 RPM RPM BHP RPM RPM RPM BHP RPM Field Furnished Low Static Drive Kit 4 1900 890 0 55 940 0 60 990 0 70 1035 0 75 1080 0 80 1125 0 90 1165 0 95 1205 1 00 2000 930 0 65 980 0 70 1025 0 80 1070 0 85 1115 0 90 1155 1 00 1195 1 05 1235 1 10 2100 975 0 75 1020 0 80 1065 0 90 1110 0 95 1150 1 00 1190 1 10 1230 1 15 1265 1 25 2200 1015 0 85 1060 0 90 1105 1 00 1145 1 05 1185 1 15 1225 120 1260 1 30 1300 1 35 2300 1060 0 95 1100 1 05 1140 1 10 1180 1 20 1220 1 25 1260 1 35 1295 1 40 1330 1 50 2400 1100 1 10 1140 1 15 1180 125 1220 1 30 1260 1 40 1295 1 50 1330 1 55 1365 1 65 2500 1140 1 20 1180 1 30 1220 1 40 1260 1 45 1295 1 55 1330 1 65 1365 1 70 1400 1 80 2600 1185 1 35 1225 1 45 1260 1 55 1295 1 60 1335 1 70 1365 1 80 1400 1 90 1435 1 95 2700 1225 1 50 1265 1 60 1300 1 70 1335 1 80 1370 1 90 1405 1 95 1435 2 05 1470 2 15 2800 1270 1 70 1305 1 80 1375 1 95 1410 2 05 1440 2 15 1475 2 25 1505 2 35 2900 1315 1 90 1350 1 95 1380 2 05 1415 2 15 1450 2 25 1480 2 35 1510 2 45 1540 2 55 0 90 to 1 60 in w g 6 Ton Standard Efficiency Horizontal TCA072S Air External Static in w g Volume 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60
84. ration after ser vicing AWARNING Product contains fiberglass wool Disturbing the insulation in this product during installation maintenance or repair will expose you to fiberglass wool Breathing this may cause lung cancer Fiberglass wool is known to the State of Cali fornia to cause cancer Fiberglass wool may also cause respiratory skin and eye irritation To reduce exposure to this substance or for further information consult material safety data sheets available from address shown on unit nameplate or contact your supervisor A Filters Units are equipped with temporary filters which must be replaced prior to building occupation See table 14 for correct filter size Refer to local codes or appropriate ju risdiction for approved filters TABLE 14 UNIT FILTERS 024 030 036 048 060 16 X 20 X 2 406 X 508 X 51 072 4 20 X 20 X 2 508 X 508 X 51 NOTE Filters must be U L C certified or equivalent for use in Canada B Supply Blower Wheel Annually inspect supply air blower wheel for accumulated dirt or dust Turn off power before attempting to remove ac cess panel or to clean blower wheel C Lubrication All motors are lubricated at the factory No further lubrica tion is required REMOVE FILTERS PULL TO REMOVE FILTERS lt FIGURE 12 D Evaporator Coil Inspect and clean coil at beginning of each cooling season Clean using mild detergent or commercial coil
85. rect drive units use 11 x 10 279 mm x 254 mm blower wheels 2 Indoor Blower Motor Capacitor C4 All single phase blower motors are PSC and requires a run capacitor Ratings may vary from each motor See motor nameplate for capacitor ratings Page 29 3 Indoor Blower Motor B3 All direct drive units use single phase PSC motors Belt drive units use single or three phase motors Same as supply volt age CFM adjustments on belt drive units are made by adjust ing the motor pulley sheave CFM adjustments on direct drive units are made by changing speed taps Motors are equipped with sealed ball bearings All motor specifications are listed in the SPECIFICATIONS table of contents in the front of this manual Units may be equipped with motors manufactured by various manufacturers therefore electrical FLA and LRA spec ifications will vary See unit rating plate for information specific to your unit AIMPORTANT Three phase scroll compressors must be phased se quentially for correct compressor and blower rota tion Follow COOLING START UP section of instal lation instructions to ensure proper compressor and blower operation A Blower Operation Initiate blower demand at thermostat according to instruc tions provided with thermostat Unit will cycle on thermostat demand The following steps apply to applications using a typical electro mechanical thermostat 1 Blower operation is manually set at the thermostat sub b
86. table the blower motor output and drive required 0 10 to 0 80 in w g 6 Ton Standard Efficiency Down Flow TCA072S Air External Static in w g 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 RPM RPM RPM RPM RPM RPM RPM RPM Field Furnished Low Static Drive Kit 4 1900 760 045 810 0 50 860 0 55 905 0 60 955 1000 0 75 1050 0 85 1095 0 90 2000 795 0 50 845 0 60 890 0 65 935 0 70 980 0 75 1025 0 85 1070 0 90 1115 1 00 2100 835 0 60 875 0 65 920 0 70 965 0 80 1005 0 85 1050 0 90 1095 1 00 1135 1 10 2200 870 0 70 910 0 75 950 0 80 1035 0 95 1075 1 00 1115 1 10 1160 1 20 2300 905 0 80 945 0 85 985 0 90 1025 0 95 1065 1 05 1105 1 10 1145 1 20 1180 1 30 2400 940 0 90 980 0 95 1015 1 00 1055 1 10 1090 1 15 1130 1 25 1170 1 30 1205 1 40 2500 975 1 00 1010 1 05 1050 1 10 1085 1 20 1120 1 25 1160 1 35 1195 1 45 1230 1 50 2600 1010 1 10 1045 1 15 1080 1 25 1115 1 30 1155 140 1190 1 50 1225 1 55 1260 1 65 2700 1050 125 1080 1 30 1115 1 35 1150 145 1185 1 55 1220 1 60 1250 1 70 1285 1 80 2800 1085 1 35 1115 1 45 1150 1 50 1180 1 60 1215 1 65 1250 1 75 1280 1 85 1315 1 95 2900 1120 1 50 1155 1 60 1185 1 65 1215 1 75 1245 1 80 1280 1 90 1310 2 00 1340 2 10 0 90 to 1 60 in w g 6 Ton Standard Efficiency Down Flow TCA072S Air Ex
87. ternal Static in w g 0 90 1 0 1 10 1 20 1 30 1 40 1 50 1 60 RPM RPM RPM RPM RPM RPM RPM BHP High Static Drive 8 1900 1140 1 00 1180 1 10 1225 1 20 1265 1 25 1420 1 65 2000 1200 1 15 1240 1 25 1280 1 35 1320 1 45 1360 1 55 1395 1 65 1435 1 75 2100 1220 1 25 1260 1 35 1300 1 45 1335 1 55 1375 1 65 1410 1 75 1450 1 85 2300 1220 1 35 1260 1 45 1295 1 55 1335 1 65 1370 1 75 1405 1 85 1445 2 00 1480 2 10 2400 1245 1 50 1280 1 55 1320 1 70 1355 1 80 1390 1 90 1425 2 00 1460 2 10 1495 2 20 2500 1410 2 00 1445 2 10 1480 2 20 1510 2 30 2600 1295 1 75 1330 1 85 1365 1 95 1395 2 05 1530 2 45 2700 1320 1 90 1355 2 00 1385 2 05 1420 2 20 1550 2 60 2800 1345 2 00 1380 2 15 1410 2 20 1475 2 45 1505 2 55 1540 2 65 1570 2 80 2900 1435 2 40 1470 2 50 1500 2 60 1530 2 70 1560 2 85 1590 2 95 18 BLOWER DATA BELT DRIVE 6 TON Blower tables include resistance for base unit with wet indoor coil amp 2 in disposable air filters in place FOR ALL UNITS ADD 1 Any factory installed options air resistance electric heat economizer etc 2 Any field installed accessories air resistance duct resistance diffuser etc Then determine from table the blower motor output and drive required 0 10 to 0 80 in w g 6 Ton Standard Efficiency Horizontal 0725 Ai
88. that position Set damper minimum position in the same manner as economizer minimum position Adjust motorized damper position using the thumbwheel on the damper motor See figure 19 Manual damper fresh air intake percentage can be determined in the same manner DAMPER MOTOR THUMBWHEEL FIGURE 19 Page 42 TABLE 16 ECONOMIZER OPERATION OUTDOOR AIR IS SUITABLE FOR FREE COOLING FREE COOL LED ON DAMPER POSITION THERMOSTAT DEMAND MECHANICAL COOLING UNOCCUPIED OCCUPIED Dampers will modulate to maintain 55 F 13 C supply air when R1 mixed air sensor is installed G Power Exhaust Relay K65 power exhaust units Power exhaust relay K65 is a DPDT relay with a 24VAC coil K65 is used in all TCA units equipped with the op tional power exhaust dampers K65 is energized by the POWER EXHAUST FAN CONNECT P18 TO J18 economizer enthalpy control after the economizer BEFORE SECURING 0 i EXHAUST FAN IN 1 dampers reach 50 open adjustable When K65 PLACE 22 7 closes exhaust fan B10 is energized H Dirty Filter Switch 27 The dirty filter switch senses static pressure increase indi cating a dirty filter condition The switch is N O and closes at 1 W C 248 6 Pa The switch is mounted in the filter sec tion on the left unit mullion I Indoor Air Quality CO2 Sensor A63 J18 JACK ON The indoor air quality sensor monitors CO levels and re UNDERSIDE OF ports the levels to the economizer enthalpy co
89. tion program which is based on ARI Standard 210 240 95 F outdoor air temperature and 80 F db 67 F wb entering evaporator air minimum external duct static pressure 2 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270 Page 6 SPECIFICATIONS BELT DRIVE BLOWER Nominal Tonnage Model No Efficiency Type General Data Cooling Gross Cooling Capacity Btuh Performance 1 Net Cooling Capacity Btuh ARI Rated Air Flow cfm 2 Sound Rating Number dB Total Unit Power kW 1 SEER Btuh Watt 1 EER Btuh Watt Type Charge Furnished Refrigerant Compressor Type one per unit Outdoor Coil Net face area sq ft Tube diameter in Number of rows Fins inch Motor HP Motor rpm Outdoor Coil Fan Total motor watts Diameter in No of blades Total air volume cfm Indoor Coil Net face area sq ft Tube diameter in Number of rows Fins per inch Drain Connection no and size in Expansion device type Nominal Motor HP Maximum Usable Motor HP 3 Indoor Blower amp Drive Selection Wheel nominal diameter x width in Available Drive Kits Type Number and size in Filters Electrical Characteristics 60 Hz 3 4 TON 3 Ton 4 Ton TCA036B2B TCA036S2B TCA048B2B TCA048S2B Basic Standard Basic Standard 37 400 38 000 49 500 50 000 36 000 36 600 47 000 48 000 1 200 1 200 1 750 1 600 81 75 75 75 3 6 3 2 5 0 4 4 11 0 13 0 10 0 13 0
90. w g 4 Ton Basic Efficiency Horizontal TCA048B Air External Static in w g Volume 0 10 0 20 0 40 0 50 0 60 0 70 0 80 cfm RPM RPM RPM RPM RPM RPM RPM RPM BHP Low Static Drive 2 1200 1005 0 55 1300 620 0 20 675 0 25 0 30 1020 0 70 1400 660 0 25 710 0 30 875 0 50 930 0 55 985 0 65 1035 0 75 1500 700 0 30 745 0 35 850 0 50 900 0 55 950 0 60 1000 0 70 1050 0 80 1600 740 0 35 785 0 40 880 0 55 930 0 60 975 0 70 1025 0 80 1070 0 85 1700 780 0 45 820 0 50 910 0 60 955 0 70 1000 0 75 1045 0 85 1090 0 95 1800 820 0 50 860 0 55 945 0 70 985 0 75 1030 0 85 1070 0 90 1115 1 00 1900 860 0 60 900 0 65 980 0 80 1020 0 85 1060 0 95 1100 1 00 1140 1 10 2000 905 0 70 940 0 75 1015 0 90 1050 0 95 1090 1 05 1165 1 20 0 90 to 1 60 in w g sic Efficiency Horizontal TCA048B Air External Static in w g Volume 0 90 1 0 1 20 1 30 1 40 1 50 1 60 cfm RPM RPM RPM RPM BHP RPM RPM High Static Drive Kit 6 1200 1110 0 85 1205 1 05 1245 1 15 1290 1 30 1330 1 40 1370 1 55 1300 1120 0 90 1210 1 10 1255 1 20 1300 1 35 1340 1 45 1380 1 60 1400 1085 0 85 1130 0 95 1225 1 15 1265 1 25 1310 1 40 1350 1 50 1390 1 65 1500 1100 0 90 1145 1 00 1235 1 20 1280 1 35 1320 1 45 1360 1 60 1400 1 70 1600 1115 0 95 1160 1 05 1250 1 30

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