Most low voltage connections are made to the same board and make it easy to find what you’re looking for and easy to access it. Carrier rooftops have high and low pressure switches, a filter drier, and 2- - in. (51mm)
S Up to 28% lighter than similar industry units. Lighter rooftops make easier replacement jobs. S 3 - - 12.5 ton units fit on existing Carrier rooftop curbs making the utility connections the same. This saves time and money on replacement jobs.
MODEL NUMBER NOMENCLATURE 10 11 12 13 14 15 16 17 18 5 0 T C Q A 0 6 A 0 A 6 -- 0 B 2 A 0 ____ ____ ____ Unit Type Packaging 50 = Cooling/Elec Heat RTU 0 = Standard 1 = LTL Model...
Page 6
Motorized 2- - Position Damper Convenience Outlet (powered or un- - powered) The new Carrier 2- - position, motorized outdoor air damper Lower service bills by including a convenience outlet in admits up to 100% outside air. Using reliable, gear- - driven your specification.
Page 7
(drives) are available, factory installed, to handle nearly any application. Carrier offers a full line of field- - installed accessory heaters. The heaters are very easy to use and install. All are pre- - engineered and certified.
3. A ---weighted sound ratings filter out very high and very low frequencies, to better approximate the response of an “average” human ear. A ---weighted measurements for Carrier units are taken in accordance with 270---95.
Page 12
Table 7 – ELECTRIC HEAT - - ELECTRICAL DATA 3 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E. WITH P .E.
Page 13
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 4 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 14
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 5 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 15
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 6 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 16
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 7.5 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 17
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 8.5 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 18
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 10 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 19
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 12.5 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Page 20
Table 7 - - (cont.) ELECTRIC HEAT - - ELECTRICAL DATA 12.5 TONS SINGLE POINT KIT PART NUMBER CRSINGLEXXXXXX ELECTRIC HEATER WITHOUT C.O. or UNPWRD PART NUMBER WITH PWRD C.O. TYPE C.O. CRHEATERXXXXXX (kW) (kW) WITHOUT P .E. WITH P .E. WITHOUT P .E.
Motormaster low ambient Motor limits, Brake horsepower (BHP): controller. Due to Carrier’s internal unit design, air path, and specially designed motors, the full horsepower (maximum continuous BHP) band, as listed in this manual, can be used with the utmost confidence. There is no need for extra safety factors, as Carrier’s motors are designed and...
Page 38
SELECTION PROCEDURE (WITH 50TCQA07 EXAMPLE) (Selection software by Carrier saves time by performing many of the steps below.) Determine cooling and heating loads. The required heating capacity is 45,000 Btuh. There- fore, 20,700 Btuh (45,000 – 24,300) additional elec- Given: tric heat is required.
Page 53
Carrier recommended the lower horsepower option. 5. For information on the electrical properties of Carrier motors, please see the Electrical information section of this book. 6. For more information on the performance limits of Carrier motors, see the application data section of this book.
ELECTRICAL INFORMATION Table 48 – 50TCQA04 1- - Stage Cooling 3 TONS VOLTAGE COMP (ea) OFM (ea) V- - Ph- - Hz RANGE WATTS TYPE EFF at Full Load 208- -1- -60 17.9 DD- -STD 230- -1- -60 17.9 DD- -STD DD- -STD 208- -3- -60 13.2...
Page 67
ELECTRICAL INFORMATION (cont.) Table 51 – 50TCQA07 1- - Stage Cooling 6 TONS VOLTAGE COMP (ea) OFM (ea) RANGE V ---Ph---Hz WATTS TYPE EFF at Full Load 208--- 3--- 60 19.0 HIGH 230--- 3--- 60 19.0 HIGH 460--- 3--- 60 HIGH 575--- 3--- 60 HIGH...
Page 68
ELECTRICAL INFORMATION (cont.) Table 54 – 50TCQD12 2- - Stage Cooling 10 TONS COMP (Cir 1) COMP (Cir 2) OFM (ea) VOLTAGE RANGE V ---Ph---Hz EFF at WATTS TYPE Full Load 208--- 3--- 60 15.6 15.9 HIGH 230--- 3--- 60 15.6 15.9 HIGH...
Table 56 – MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 30.7 32.6 3.3/4.4 15.9/18.3 50.6/53.6 60/60 48/51 137/139 52.5/55.5 60/60 51/53 139/141...
Page 70
Table 57 – (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 36.2 38.1 3.3/4.4 15.9/18.3 56.0/59.0 60/60 54/56 144/146 57.9/60.9 60/70 56/59...
Page 71
Table 57 – (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 41.7 43.6 4.9/6.5 23.5/27.1 71.0/75.5 80/80 67/72 169/172 72.9/77.4 80/80 70/74...
Page 72
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 30.5 32.4 4.9/6.5 13.6/15.6 47.5/50.0 60/60 45/47 160/162 49.4/51.9 60/60...
Page 73
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 37.7 41.5 7.8/10.4 21.7/25.0 64.8/68.9 70/70 65/68 215/218 68.6/72.7 70/80...
Page 74
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 41.9 45.7 7.8/10.4 21.7/25.0 69.0/73.2 70/80 69/72 223/226 72.8/77.0 80/80...
Page 75
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR WITHOUT C.O. or UNPWR C.O. WITHOUT P .E. WITH P .E. IFM TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 46.9 50.7 7.8/10.4 21.7/25.0 74.0/78.1 80/80 74/78 304/307 77.8/81.9...
Page 76
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR NO C.O. or UNPWR C.O. NO P .E. w/ P .E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 62.4 80.0 65.0 366.0 66.2 80.0 70.0 370.0...
Page 77
Table 57 - - (cont.) MCA/MOCP DETERMINATION WITHOUT C.O. OR UNPWRD C.O. ELEC. HTR NO C.O. or UNPWR C.O. NO P .E. w/ P .E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 24.0 30.0 25.0 136.0 27.8 30.0 30.0 140.0...
Page 78
Table 57 – MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 35.5 37.4 3.3/4.4 15.9/18.3 55.4/58.4 60/60 54/57 142/144 57.3/60.3 60/70 56/59 144/146 4.9/6.5 23.5/27.1 64.9/69.4 70/80...
Page 79
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 42.9 3.3/4.4 15.9/18.3 60.8/63.8 70/80 59/62 149/151 62.7/65.7 80/80 61/64 151/153 6.5/8.7 31.4/36.3 80.2/86.3 90/90...
Page 80
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 46.5 48.4 4.9/6.5 23.5/27.1 75.8/80.3 80/90 73/77 174/177 77.7/82.2 80/100 75/79 176/179 6.5/8.7 31.4/36.3 85.7/91.8...
Page 81
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELECTRIC HEATER WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 35.3 37.2 4.9/6.5 13.6/15.6 52.3/54.8 60/60 51/53 165/167 54.2/56.7 60/60 53/55 167/169 7.9/10.5 21.9/25.3 62.6/66.9...
Page 82
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELECTRIC HEATER WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 42.5 46.3 7.8/10.4 21.7/25.0 69.6/73.7 70/80 70/74 220/223 73.4/77.5 80/80 74/78 224/227 12.0/16.0 33.4/38.5 84.2/90.6...
Page 83
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELECTRIC HEATER WITH PWRD C.O. WITHOUT P .E. WITH P .E. TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 46.7 50.5 7.8/10.4 21.7/25.0 73.8/78.0 80/80 74/78 228/231 77.6/81.8 80/90 78/82 232/235 12.0/16.0 33.4/38.5 88.5/94.8...
Page 84
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR WITH PWRD C.O. WITHOUT P .E. WITH P .E. (pwrd fr/unit) IFM TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 51.7 55.5 7.8/10.4 21.7/25.0 78.8/82.9 80/90 80/84 309/312 82.6/86.7 90/90 84/88 313/316...
Page 85
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 67.2 80.0 71.0 371.0 71.0 80.0 75.0 375.0 12.4/16.5 34.4/39.7 110.2/116.8 125/125 110/116 405/411...
Page 86
Table 58 – (cont.) MCA/MOCP DETERMINATION WITH PWRD C.O. ELEC. HTR w/ PWRD C.O. NO P .E. w/ P .E. (pwrd fr/unit) TYPE DISC. SIZE DISC. SIZE (kW) MOCP MOCP 25.7 30.0 27.0 138.0 29.5 35.0 32.0 142.0 16.5 15.9 45.6 49.4 26.5...
SEQUENCE OF OPERATION Cooling, unit without economizer 2 heating (W2 closes). Terminal W2 is energized. Defrost Board issues an output at EHEAT. Heater contactor 1 and When thermostat calls for cooling, terminals G and Y1 are heater contactor 2 (if installed) are energized; all electric energized.
Page 94
up to 30 seconds to initiate. Damper movement from full If field- - installed accessory CO sensors are connected to closed to full open (or vice versa) will take between 1 the PremierLink control, a PID controlled demand and 2 minutes.
Page 95
If field- - installed accessory CO sensors are connected to The unit continues to defrost until the coil temperature as the PremierLink control, a PID- - controlled demand measured by DFT2 reaches 65_F (18_C), or the duration ventilation strategy will begin to operate. As the CO of defrost cycle completes a 10- - minute period.
11. Shall include an EIA- - 485 protocol communication port, an access port for connection of either a computer or a Carrier technician tool, an EIA- - 485 port for network communication to intelligent space sensors and displays, and a port to connect an optional LonWorks plug- - in communications card.
Page 97
12. Shall have built- - in Carrier Comfort Network (CCN) protocol, and be compatible with other CCN devices, includ- ing ComfortLink and ComfortVIEW controllers. 13. Shall have built- - in support for Carrier technician tool. 14. Software upgrades will be accomplished by local download. Software upgrades through chip replacements are not allowed.
Page 98
c. Molded plug connection to insure proper connection. 23 09 33.23.B. Safeties: 1. Compressor overtemperature, overcurrent. 2. Loss of charge switch. a. Units with 2 compressors shall have different sized connectors for the circuit 1 and circuit 2 low and high pres- sure switches.
Page 99
13. Unit shake tested to assurance level 1, ASTM D4169 to ensure shipping reliability. 14. High Efficient Motors listed shall meet Section 313 of the Energy Independence and Security Act of 2007 (EISA 2007). 23 81 19.13.C. Delivery, Storage, and Handling 1.
Page 100
(3.) No basepan penetration, other than those authorized by the manufacturer, is permitted. 9. Component access panels (standard) a. Cabinet panels shall be easily removable for servicing. b. Unit shall have one factory- - installed, tool- - less, removable, filter access panel. c.
Page 101
c. This gauge access port shall facilitate correct and accurate condenser pressure readings by enabling the read- ing with the compressor access panel on. d. The plug shall be made of a leak proof, UV- - resistant, composite material. 3. Compressors a.
Page 102
c. Damper blades shall be galvanized steel with composite gears. Plastic or composite blades on intake or return shall not be acceptable. d. Shall include all hardware and controls to provide free cooling with outdoor air when temperature and/or hu- midity are below setpoints.
Page 103
(2.) Outlet shall be powered from line side or load side of disconnect by installing contractor, as required by code. If outlet is powered from load side of disconnect, unit electrical ratings shall be UL certified and rated for additional outlet amperage. (3.) Outlet shall be factory- - installed and internally mounted with easily accessible 115- - v female receptacle.
Page 104
(minimum 18 ga galvanized steel) attached to end of heater assembly. Catalog No: 50TCQ---05PD Copyright 2011 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 01/11 Replaces: 50TCQ--- 03PD Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.