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Copyright 2000 Carrier Corporation

Form 50TFF-C1PD

Single-Package Rooftop Units with:
• Galvanized pre-painted steel

cabinet

• Fifty-one mm (2-in.) return-air filters
• Commercial strength base rails
• Exclusive tool-less filter access

panel

• Corrosion-resistant sloped

condensate pan

• Single power entry to unit
• Commercial duty motors with

permanently lubricated bearings

• Standard cooling operation at

outdoor ambient temperatures as
low as –4 C (25 F)

• Meets ASHRAE Standard 62

(Indoor Air Quality)

Features/Benefits

Compact, vertical discharge
units convert to horizontal
discharge, combining
installation flexibility with
efficient performance and
easy maintenance.

Easy installation and
conversion

All units are shipped in the vertical dis-
charge configuration for fit-up to
standard roof curbs. (Two different curb 
sizes fit unit sizes 007 and 008-014.) 
The contractor can order and install the 
roof curb early in the construction 
stage, before decisions on size require-
ments are made.

All units feature roll-formed baserail 

design with forklift slots on 3 sides and 
rigging holes for easier maneuvering. 
Durable packaging protects all units 
during shipment and storage.

The units can be easily converted 

from a vertical to a horizontal            
discharge configuration by interchang-
ing the panels supplied with the unit.

50TFF007-014

Single-Package Rooftop Units

Electric Cooling

with Electric Heat Option

50 Hz

Nominal Capacity: 17.6 kW to 35.9 kW

(5 to 10.2 Tons)

Product
Data

50TFF007

50TFF008-014

Summary of Contents for 50TFF007-014

Page 1: ...sy maintenance Easy installation and conversion All units are shipped in the vertical dis charge configuration for fit up to standard roof curbs Two different curb sizes fit unit sizes 007 and 008 014 The contractor can order and install the roof curb early in the construction stage before decisions on size require ments are made All units feature roll formed baserail design with forklift slots on...

Page 2: ...mperature is below the control set point the supply air sensor modulates the economizer out door air damper open to achieve the set point When second stage cooling is called for the compressor is energized in addition to the economizer If the outdoor air temperature is above the set point the first stage of compression is activated and the economizer stays at minimum vent position Economizer opera...

Page 3: ...h almost any thermostat or building control system Indoor air quality begins with Carrier rooftops Sloped condensate pans minimize bio logical growth in rooftop units in accor dance with ASHRAE Standard 62 Standard 51 mm 2 in filters with optional dirty filter indicator switch pro vide for greater particle reduction in the return air The face split evaporator coils improve the dehumidification ca ...

Page 4: ... Nominal L s 1130 1230 1420 1700 1980 Motor kW 1 12 1 12 1 12 1 50 2 24 Maximum Continuous BkW 1 79 1 79 1 79 1 79 2 76 Motor Frame Size 56 56 56 56 56 Nominal r s High Low Fan r s Range 15 50 20 08 10 33 14 67 10 33 14 67 11 50 15 00 11 83 14 83 Motor Bearing Type Ball Ball Ball Ball Ball Maximum Allowable r s 35 0 26 7 26 7 26 7 26 7 Motor Pulley Pitch Diameter Min Max mm 71 97 61 86 71 97 71 97...

Page 5: ...e Belt Belt Belt Belt Belt Nominal Cfm 2000 2600 2600 3500 4200 Motor Hp 11 2 11 2 11 2 2 3 Maximum Continuous Bhp 2 40 2 40 2 40 2 40 3 70 Motor Frame Size 56 56 56 56 56 Fan Rpm Range 930 1205 620 880 620 880 690 900 710 890 Motor Bearing Type Ball Ball Ball Ball Ball Maximum Allowable Rpm 2100 1600 1600 1600 1600 Motor Pulley Pitch Diameter Min Max in 2 8 3 8 2 4 3 4 2 8 3 8 2 8 3 8 4 0 5 0 Nom...

Page 6: ...er Coil Hail Guard Assembly X Fan Filter Status X Salt Spray Protection Grille 008 014 X Logo Kit X Outdoor Air Enthalpy Sensor EconoMi er X Return Air Enthalpy Sensor EconoMi er X Return Air Temperature Sensor EconoMi er X Indoor Aair Quality CO2 Sensor EconoMi er X Options and accessories HEAD PRESSURE CONTROL The 50TFF007 014 standard units are designed to operate in cooling at outdoor temperat...

Page 7: ...ing plate on the face of the economizer controls the amount of outdoor air entering the system Closed it pro vides a leakproof seal which prevents ambient air from seep ing in or conditioned air from seeping out It can be adjusted easily for 100 outdoor air or any proportions of mixed air Like the base unit the economizer is converted easily for hor izontal discharge applications THERMOSTAT Zone t...

Page 8: ...d Accusensor III sensor compares outdoor temperature and humidity to return air temperature and humidity and determines the most economical mixture of air purchased in addition to first solid state enthalpy sensor for differential enthalpy sensing ECONOMI ER Electric heaters are available in a wide range of capacities for factory or field installation FACTORY INSTALLED APOLLO COMMUNICATING CONTROL...

Page 9: ...inches b Bottom of unit to combustible surfaces when not using curb 1 inch Bottom of base rail to com bustible surfaces when not using curb 0 inches c Condenser coil for proper airflow 36 in one side 12 in the other The side getting the greater clearance is optional d Overhead 60 in to assure proper condenser fan operation e Between units control box side 42 in per NEC f Between unit and ungrounde...

Page 10: ...ter clearance is optional c Overhead 60 in to assure proper condenser fan operation d Between units control box side 42 in per NEC National Electrical Code e Between unit and ungrounded surfaces control box side 36 in per NEC f Between unit and block or concrete walls and other grounded surfaces control box side 42 in per NEC g Horizontal supply and return end 0 inches 6 With the exception of the ...

Page 11: ...uct rest on curb B C D ALT DRAIN HOLE E GAS F POWER G CONTROL CONNECTOR PKG ACCY 1 911 16 551 1 4 406 13 4 44 5 3 4 19 NPT 3 4 19 NPT 1 2 12 7 CRBTMPWR001A00 11 4 31 7 NPT CRBTMPWR002A00 1 2 12 7 NPT 3 4 19 NPT 1 2 12 7 CRBTMPWR003A00 3 4 19 NPT 11 4 31 7 NPT CRBTMPWR004A00 6 Service clearance 4 ft on each side 7 Direction of airflow 8 Connector packages CRBTMPWR001A00 and 002A00 are for thru the ...

Page 12: ... connections B C D ALT DRAIN HOLE E GAS F POWER G CONTROL CONNECTOR PACKAGE ACCESSORY 2 87 16 827 1 1015 16 583 13 4 44 5 3 4 19 NPT 3 4 19 NPT 1 2 12 7 NPT CRBTMPWR001A00 11 4 31 7 NPT CRBTMPWR002A00 1 2 12 7 NPT 3 4 19 NPT 1 2 12 7 NPT CRBTMPWR003A00 3 4 19 NPT 11 4 31 7 NPT CRBTMPWR004A00 NOTES 1 Roof curb accessory is shipped disassembled 2 Insulated panels 1 thick polyurethane foam 13 4 lb de...

Page 13: ... III Select electric heat Heating load required is 18 kW Enter the Electric Heating Capacities table page 33 for the 50TFF012 at 400 3 50 The 19 3 kW heater at 400 v most closely satisfies the heating required IV Determine fan speed and power require ments at design conditions Before entering the Fan Performance tables calcu late the total static pressure required based on unit components From the...

Page 14: ... Electric Heating Capacities table page 33 for the 50TFF012 at 400 3 50 The 19 3 kW heater at 400 v most closely satisfies the heating required 19 3 x 3413 65 871 Btuh gross capacity IV Determine fan speed and power require ments at design conditions Before entering the Fan Performance tables calcu late the total static pressure required based on unit components From the given and the Pressure Dro...

Page 15: ...6 17 5 19 4 21 3 16 6 18 2 20 0 21 9 SHC 14 7 15 0 12 6 10 0 15 6 17 5 14 5 11 2 16 6 18 2 16 1 12 2 kW 4 54 4 70 4 87 5 04 4 66 4 82 4 98 5 15 4 74 4 89 5 05 5 21 32 TC 14 1 15 9 17 8 19 7 15 0 16 9 18 8 20 7 16 2 17 7 19 4 21 2 SHC 14 1 14 7 12 3 9 8 15 0 16 9 14 3 11 0 16 2 17 7 15 8 12 0 kW 4 81 4 99 5 17 5 36 4 92 5 10 5 29 5 48 5 05 5 20 5 37 5 55 35 TC 13 7 15 5 17 3 19 3 14 5 16 4 18 2 20 ...

Page 16: ...14 4 14 3 13 3 11 7 9 9 16 1 16 1 15 2 13 5 11 2 kW 7 33 7 33 7 47 7 67 7 91 7 56 7 57 7 67 7 85 8 08 50TFF008 21 5 kW cont Temp C Air Entering Condenser Edb Air Entering Evaporator L s BF 1180 0 075 1400 0 095 Air Entering Evaporator Ewb C 14 16 18 20 22 14 16 18 20 22 20 TC 21 8 22 5 23 9 25 5 27 1 22 9 23 1 24 3 26 1 27 7 SHC 21 8 20 9 18 9 16 4 13 6 22 8 22 4 20 5 17 7 14 5 kW 5 33 5 41 5 55 5...

Page 17: ... 22 0 16 0 kW 6 61 6 69 6 96 7 09 6 97 7 02 7 35 7 46 7 61 7 60 8 04 8 14 28 TC 23 0 23 2 26 5 29 6 24 7 24 7 27 5 30 3 26 4 26 4 28 4 31 0 SHC 22 5 22 0 18 7 14 6 23 9 23 9 20 1 15 2 25 0 25 0 21 8 15 9 kW 7 00 7 06 7 33 7 48 7 34 7 34 7 71 7 86 7 98 7 97 8 42 8 55 32 TC 22 3 22 4 25 5 28 7 23 7 23 7 26 3 29 4 25 6 25 6 27 3 30 2 SHC 21 7 21 4 18 4 14 3 22 8 22 8 19 7 15 0 24 2 24 2 21 5 15 7 kW ...

Page 18: ... 2 15 5 13 5 20 0 20 0 18 4 18 1 15 5 kW 10 37 10 37 10 52 10 77 11 07 10 74 10 74 10 81 10 98 11 28 50TFF012 29 2 kW cont Temp C Air Entering Condenser Edb Air Entering Evaporator L s BF 1800 0 125 1880 0 13 Air Entering Evaporator Ewb C 14 16 18 20 22 14 16 18 20 22 20 TC 31 5 31 9 33 3 35 3 37 2 31 7 23 1 33 5 35 3 37 3 SHC 31 4 30 6 27 8 24 0 19 9 31 7 31 1 28 3 24 4 20 2 kW 7 12 7 16 7 30 7 5...

Page 19: ...44 0 SHC 29 4 31 9 26 7 21 1 32 9 36 3 30 5 23 3 34 4 37 4 32 5 24 6 kW 9 78 9 94 10 12 10 27 9 95 10 08 10 22 10 39 10 15 10 10 10 25 10 42 32 TC 26 7 31 5 36 2 40 2 30 8 34 5 38 3 42 0 33 0 36 0 39 1 42 7 SHC 26 7 30 9 26 0 20 7 30 8 34 5 29 9 22 9 33 0 36 0 31 9 24 3 kW 10 20 10 42 10 64 10 85 10 40 10 59 10 76 10 96 10 49 10 65 10 82 11 01 35 TC 24 7 29 9 34 9 39 1 29 2 33 1 37 0 40 9 31 4 35 ...

Page 20: ...54 6 45 6 75 6 60 6 48 6 76 6 69 6 60 6 86 3 46 105 TC 60 4 68 1 76 2 63 0 70 4 78 6 63 5 70 8 78 8 66 7 72 0 80 1 SHC 55 7 47 2 37 5 62 2 52 4 40 8 63 2 53 4 41 3 66 7 58 6 44 1 kW 6 59 6 86 7 19 6 71 7 00 7 32 6 74 7 02 7 34 6 90 7 11 7 40 115 TC 55 9 63 4 71 1 59 0 65 4 73 2 59 7 65 6 73 5 62 5 66 8 75 0 SHC 53 2 45 4 35 9 59 0 50 6 39 0 59 7 51 6 39 6 62 7 56 8 43 0 kW 6 99 7 26 7 58 7 13 7 39...

Page 21: ... 82 6 61 7 kW 9 06 9 42 9 74 9 26 9 56 9 88 9 4 9 65 9 96 9 48 9 66 9 98 115 TC 67 4 77 2 94 2 75 6 83 8 99 0 81 3 87 4 100 6 82 8 88 4 101 0 SHC 67 3 59 1 49 5 75 6 68 9 55 1 81 2 76 3 59 0 82 7 78 7 60 1 kW 9 71 10 04 10 42 9 97 10 19 10 59 10 1 10 28 10 66 10 19 10 31 10 68 125 TC 63 2 69 2 84 4 68 5 71 8 88 8 73 1 75 0 92 3 74 2 76 0 93 0 SHC 63 2 56 0 46 0 68 5 64 3 51 9 73 0 70 9 56 9 74 2 7...

Page 22: ...STANDARD MOTOR BELT DRIVE Airflow L s External Static Pressure Pa 25 50 100 150 200 250 300 350 400 R s kW R s kW R s kW R s kW R s kW R s kW R s kW R s kW R s kW 700 12 1 0 30 13 1 0 36 14 8 0 48 16 4 0 61 17 8 0 75 18 7 0 85 18 7 0 83 17 8 0 67 16 0 0 44 750 12 8 0 36 13 7 0 42 15 5 0 56 17 0 0 68 18 4 0 84 19 5 0 98 20 1 1 05 20 0 1 23 19 1 0 85 800 13 5 0 42 14 4 0 49 16 1 0 63 17 5 0 77 18 9 ...

Page 23: ... 14 3 1 34 15 1 1 58 15 9 1 81 16 7 2 03 1400 8 8 0 66 10 0 0 86 11 1 0 98 12 0 1 10 12 9 1 22 13 7 1 33 14 5 1 47 15 4 1 67 16 2 1 90 16 8 2 12 1500 9 2 0 74 10 4 0 95 11 5 1 09 12 4 1 23 13 2 1 35 14 0 1 49 14 8 1 57 15 6 1 77 16 4 1 97 17 1 2 21 1600 9 7 0 85 10 8 1 07 11 8 1 22 12 8 1 37 13 6 1 49 14 4 1 65 15 1 1 79 15 8 1 94 16 5 2 09 17 3 2 31 1700 10 2 0 96 11 2 1 19 12 2 1 35 13 1 1 51 13...

Page 24: ...OR BELT DRIVE Airflow L s External Static Pressure Pa 25 50 100 150 200 250 300 350 400 R s kW R s kW R s kW R s kW R s kW R s kW R s kW R s kW R s kW 700 10 8 0 25 12 0 0 30 13 9 0 41 15 6 0 53 17 0 0 67 18 4 0 83 19 8 1 04 21 2 1 27 21 9 1 38 750 11 5 0 30 12 5 0 35 14 4 0 47 16 1 0 60 17 5 0 74 18 8 0 88 20 1 1 09 21 5 1 31 22 3 1 42 800 12 1 0 35 13 1 0 41 14 9 0 53 16 5 0 67 17 9 0 81 19 2 0 ...

Page 25: ...1 21 13 9 1 22 14 0 0 79 15 0 1 43 15 6 1 64 1400 8 0 0 66 9 3 0 78 10 5 0 91 11 4 1 03 12 4 1 16 13 3 1 30 14 1 1 41 14 6 1 25 15 4 1 64 16 0 1 75 1500 8 4 0 74 9 6 0 87 10 7 0 99 11 8 1 14 12 7 1 28 13 5 1 42 14 3 1 57 15 1 1 67 15 7 1 83 16 4 1 88 1600 8 8 0 85 10 0 0 96 11 1 1 10 12 1 1 25 12 9 1 40 13 8 1 55 14 5 1 70 15 3 1 88 16 0 2 00 16 7 2 09 1700 9 1 0 96 10 3 1 06 11 3 1 22 12 3 1 37 1...

Page 26: ...4 859 1163 998 1235 1156 1303 1318 1371 1499 1433 1638 1900 894 630 945 692 1037 818 1119 948 1194 1089 1266 1250 1330 1413 1396 1604 1460 1796 2000 936 708 984 771 1072 899 1154 1047 1226 1190 1297 1361 1362 1534 1422 1718 1485 1910 2100 978 795 1024 859 1108 998 1190 1156 1259 1310 1327 1473 1393 1656 1452 1840 1510 2041 2200 1021 891 1064 956 1145 1097 1225 1275 1294 1439 1359 1604 1423 1779 14...

Page 27: ...2282 3400 583 818 651 965 711 1123 767 1284 815 1430 863 1587 907 1744 947 1946 991 2099 1038 2318 3500 596 867 663 1031 721 1190 777 1353 826 1517 871 1665 916 1831 956 2039 997 2195 1043 2380 3600 609 924 674 1097 732 1267 787 1430 836 1595 880 1753 926 1927 966 2134 1004 2291 1045 2478 3700 622 989 686 1165 744 1335 797 1508 847 1691 890 1849 934 2015 976 2238 1013 2397 1051 2569 3800 635 1047 ...

Page 28: ...1019 843 1099 883 1178 1031 1249 1182 1316 1353 1382 1526 1900 802 539 854 585 953 700 1046 835 1126 965 1201 1106 1274 1275 1338 1439 1402 1621 2000 840 600 888 646 984 771 1073 907 1154 1047 1226 1190 1297 1361 1363 1534 1424 1718 2100 878 669 923 716 1015 843 1101 981 1182 1140 1252 1292 1320 1456 1388 1639 1448 1831 2200 916 739 958 795 1046 924 1129 1072 1209 1241 1280 1404 1345 1569 1410 174...

Page 29: ...52 1920 993 2014 3400 527 739 599 859 664 1006 724 1165 775 1318 827 1482 873 1639 920 1831 963 2005 1001 2091 3500 537 795 609 907 672 1064 731 1216 784 1387 833 1552 880 1718 926 1901 970 2134 1007 2221 3600 548 851 619 956 680 1114 738 1275 794 1456 840 1621 888 1805 931 1971 976 2230 1017 2362 3700 560 916 629 1014 688 1173 747 1344 802 1534 847 1700 895 1884 938 2108 981 2309 1024 2496 3800 5...

Page 30: ... 40 2 120 3 0 008 400 1 79 2 40 2 120 3 0 009 400 1 79 2 40 2 120 3 0 012 400 1 79 2 40 2 120 3 0 014 400 2 76 3 70 3 313 5 5 Bhp Brake Horsepower BkW kW x Motor Efficiency UNIT 50TFF MOTOR PULLEY TURNS OPEN 0 1 2 1 11 2 2 21 2 3 31 2 4 41 2 5 007 20 08 19 67 19 17 18 75 18 25 17 83 17 33 16 92 16 42 16 00 15 50 008 009 14 67 14 25 13 83 13 33 12 92 12 50 12 08 11 67 11 25 10 83 10 33 012 15 00 14...

Page 31: ...31 DURABLADE ECONOMIZER BAROMETRIC RELIEF DAMPER CHARACTERISTICS 50TFF007 DURABLADE ECONOMIZER BAROMETRIC RELIEF DAMPER CHARACTERISTICS 50TFF008 014 ...

Page 32: ... 4 0 5 STATIC PRESSURE in wg FLOW cfm 2 FANS OPERATING 1 FAN OPERATING ECONOMI ER OUTDOOR AIR LEAKAGE 50 40 30 20 10 0 0 0 25 0 5 0 75 1 FLOW CFM STATIC PRESSURE in wg SIZE 007 SIZES 008 014 0 25 0 20 0 15 0 10 0 05 0 00 0 500 1000 1500 2000 FLOW CFM STATIC PRESSURE in wg SIZE 007 SIZES 008 014 ECONOMI ER RETURN AIR PRESSURE DROP 0 25 0 20 0 15 0 10 0 05 0 00 1200 2000 2800 3600 4400 FLOW CFM STAT...

Page 33: ... 37 39 40 Durablade Economizer 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 EconoMi er 31 35 41 50 59 67 75 84 90 97 105 COMPONENT Cfm 1500 1600 1800 2000 2200 2400 2500 1 Heater Module 0 09 0 09 0 10 0 11 0 11 0 12 0 13 2 Heater Modules 0 16 0 16 0 17 0 17 0 17 0 18 0 18 Durablade Economizer 0 05 0 05 0 05 0 05 0 05 0 05 0 05 EconoMi er 0 13 0 15 0 19 0 24 0 29 0 35 COMPONENT Cfm 1900 2200 2500 300...

Page 34: ...A FLA FLA Nominal kW FLA MCA MOCP FLA LRA 007 400 3 phase 360 440 9 9 72 0 0 6 2 6 18 4 25 18 109 4 2 7 2 18 4 25 18 8 0 13 8 18 4 25 18 9 7 16 8 20 8 25 19 16 0 27 8 32 1 35 30 17 7 30 7 34 6 35 32 008 400 3 phase 360 440 8 9 42 0 0 6 2 6 23 8 30 25 103 9 7 13 9 23 8 30 25 11 5 16 5 23 9 25 25 19 3 27 8 38 1 40 35 22 9 33 1 44 6 45 41 29 0 41 8 55 5 60 51 009 400 3 phase 360 440 8 3 69 0 0 6 2 6 ...

Page 35: ...iping and wiring 50TFF007 014 sizes 008 014 shown CONDENSER FAN DISCHARGE AIR TOOL LESS FILTER ACCESS DOOR VERTICAL DISCHARGE DUCTING HORIZONTAL DISCHARGE DUCTING LEGEND NEC National Electrical Code U S A Standard ...

Page 36: ...36 Typical wiring schematic 50TFF008 014 shown ...

Page 37: ...al R Relay SAT Supply Air Thermostat SEN Sensor SW1 Switch Fully Open SW2 Switch Fully Closed SW3 Switch Min Vent Position SW4 Switch Max Vent Position TB Terminal Block TC Thermostat Cooling TH Thermostat Heating TRAN Transformer Field Splice Marked Wire Terminal Marked Terminal Unmarked Terminal Block Splice Splice Marked Factory Wiring Field Control Wiring Field Power Wiring Accessory or Option...

Page 38: ... er damper modulates to minimum position The compressor contac tor is energized to start the compressor and outdoor con denser fan motor OFM After the thermostat is satisfied the damper modulates to the fully closed position when the IFM is deenergized When the OAT is below the ECON SP setting and the room thermostat calls for Stage 1 cooling R to G Y1 the EconoMi er modulates to the minimum posit...

Page 39: ... 2 5 If compressor no 1 is energized and the thermostat is satisfied compressor no 1 the OFM and IFM are deenergized and the EconoMi er modulates closed When the OAT is below the MECH CLG LOCKOUT set point the compressors remain off Heating units with economizer If Accessory Heater is Installed When the room thermostat calls for heat through terminal W1 the evaporator fan contac tor and heater con...

Page 40: ...s continually monitor and adjust their operation to ensure uninterrupted and personalized comfort for all occupants Through the use of communicating electronic controls VVT Systems are able to provide the comfort of a multiple zone system while using the installation operating and maintenance economics of single zone equipment virtu ally putting an end to the cost vs comfort compromise Controls co...

Page 41: ...eating to cooling changeover All units are auto matic changeover from heating to cooling when automatic changeover thermostat and subbase are used Airflow Units are draw thru on cooling and blow thru on heating Maximum airflow To minimize the possibility of con densate blow off from evaporator airflow through units should not exceed 67 L s per kW 500 cfm ton Minimum airflow For cooling minimum air...

Page 42: ...ging and forklift slots shall be provided to facilitate maneuvering 5 Unit shall have a factory installed sloped con densate drain pan made of a non corrosive material providing a minimum 19 mm 3 4 in connection with both vertical and horizontal drains and shall comply with ASHRAE 62 6 Unit shall have factory installed filter access panel to provide filter access with tool less removal 7 Unit shal...

Page 43: ...er strip and capable of supporting entire unit weight b Allows for installing and securing ductwork to curb prior to mounting unit on the curb 3 Integrated Economizer a Integrated integral modulating type capable of simultaneous economizer and compressor operation b Includes all hardware and controls to provide cooling with outdoor air c Equipped with low leakage dampers not to exceed 3 leakage at...

Page 44: ... after shutdown 17 Salt Spray Protection Package 008 014 Coil guard protects coil from corrosion in coastal areas and in areas with high sulfur emissions 18 Fan Filter Status Switch Provides status of indoor fan ON OFF or filter CLEAN DIRTY Status shall be dis played over communication bus when used with direct digital controls or with an indica tor light at the thermostat 19 Unit Mounted Disconne...

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