Instruction/ maintenance manual of the product 50TFQ008-012 Carrier
Go to page of 56
Manufa cturer res erves the right to discon tinue, or chang e at any time , specificat ions or designs witho ut notic e and wit hout inc urring obligati ons.
2 Fig. 1 — Roof Curb De tails.
3 SLAB MOUNT (H orizontal Units Only) — Pro vi d e a l e ve l concrete slab that extends a minimum of 6 i n. beyond the unit cabinet on all sides. Install a gravel apron i n front of the outdoor coil air inlet to prevent grass and foliage from obstruct- ing air flow .
4 NO TES: 1. Dimension in ( ) is in mil limeters. 2. Hoo k rigg ing shackle s through h oles in ba se rail, as shown i n detai l “ A. ” Holes in base rails are centered around the unit center of gra vity . Use wooden t op skid when riggin g to prevent riggin g straps fro m dama ging unit .
5 Table 1 — P hysical D ata LEGEND Bhp — Brak e Hor sep ow er * W e i g h to f1 4 - i n .r o o fc u r b . UNIT SIZE 50TFQ 008 009 01 2 NOMINAL CAP ACITY (tons) 7 1 / 2 8 1 / 2 10 OPERA TING W EIGH.
6 Fig. 6 — Base U nit Dimensions.
7 Step 5 — Make Electrical Connections FI E L D P OW E R S U P PL Y — All uni ts except 208/ 230-v units are factory-wired for the voltage shown on the unit name - plate. If the 208/230-v uni t is to be connected t o a 208-v power supply , t he transformer must be rewired by disconnecting the black wire from the 230-v 1 / 4 -in.
8 Table 2 — Electric Heatin g Capacities *T wo he ater p ackages req uired t o provide kW indic ated. †Use CRSINGL E008A00 for units with an electr ical convenience outlet . NO TES: 1. The rated h eater voltage is 2 40, 48 0, and 57 5 v . If power distr ibution volta ge varies fro m rated he ater voltage, heate r kW w ill var y ac cordingly .
9 Table 3A — Electrical Data (Units Without Electrical Convenience Outlet) (cont ) NO TE: Legen d and Notes f or Electrical Data are on page 11. 50TFQ UNIT SIZE NOMINAL V- P H - H z IFM TYPE V O LTA.
10 Table 3B — Electr ical Data (Units With Electrical Convenience O utlet) NOTE: Legend and Notes for Electr ical Data are on pa ge 11. 50TFQ UNIT SIZE NOMINAL V- P H - H z IFM TYPE VO L TAGE RANGE .
11 Table 3B — Electrical Data (Units With Electrical Convenience Outlet) (cont) LEGEND *Heaters ar e field inst alled only . †Used to d etermine minimum di sconnect siz e per NEC . **Heater capacity (kW) is based on heater v oltage of 208 v , 24 0 v , 480 v , and 575 v .
12 FI E L D CO N T R OL W I R IN G — Instal l a Carrier-approved accessor y thermostat assembly accordi ng to the installation instructions included with the accessory . Locate the thermostat assembly on a solid wall i n the conditioned space to sense aver- age temperature in accordanc e with the the rmostat insta llation instructions.
13 Table 4 — Heat Anticipator Settings *kW is based on 240, 480, or 575 v . CONVENIENCE OUTLET — A n op t i on a l c onvenience out- let provides power for rooftop use. For maintenance personnel safety , the convenienc e outlet power is off when the unit dis- connect is off.
14 PREMIERLINK™ CONTROL — Th e Pr e m ie r Li n k co n t ro l - ler is compatible with Carrier Comfor t Network® (CCN) devices. This control is designed t o allow users the a ccess and ability to change factory-defined settings, thus expanding the function of the standard unit control board.
15 T abl e 5 — P rem ier Link ™ Se nsor Usage *PremierL ink control require s Supply Air T emperatur e sensor 33 Z CSENSA T and Outdoor A ir T emperat ure Sensor HH79N Z 01 7 — Included wit h f actory-installe d PremierLink cont rol ; field-supp lied and field-in stalled with fie ld-installed Pre mierLink control.
16 T B-1 R Y1 Y2 W1 W2 G C X 1 2 3 4 5 6 7 8 T B-3 1 2 3 4 5 6 7 8 T B-2 1 2 3 4 5 6 7 8 J6 ANAL OG J5 0-2 0m AI N J4 DISCRETE J1 PWR J2 COMMS J9 0-20 mA J8 Relays HK50AA0 39 BRN BRN WHT WHT RED PNK P.
17 Enthalpy Sensors and Control — The ent halpy control (HH57AC077) is supplied as a fie ld-installed accessory to be used with the economizer dampe r control option.
18 OP TIONAL ECONOMI$ER IV AND ECONOMI$ER2 — See Fig. 19 for EconoMi$er IV component loca tions. See Fig. 20 for EconoMi$er2 component loc ations. NOTE: These instructions are for inst alling the optional EconoMi$er IV and Ec onoMi$er2 only .
19 6. Insert the hood divider between the hood sides. S ee Fig. 24 and 25. Secure hood divider with 2 screws on each hood side. The hood divider is also used as t he bot- tom fil ter rack f or the alum inum fi lter . 7. Open the filter c lips which are lo cated underneath t he hood top.
20 4 3 5 2 8 6 7 1 10 11 9 12 PINK VIOLET BLACK BLUE YELLOW NOTE 1 NOTE 3 RUN 500 OHM RESISTOR - + OPTIONAL CO SENSO R4-2 0m A OUTPUT 50HJ540573 ACTUA TOR ASSEMBL Y RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUA TOR 2 NO TES: 1. S witch on actuato r must be in run posit ion for economizer to operate.
21 ECONOMI$ER IV ST ANDAR D SENSORS Outdoor Air T emperature ( OA T) Sensor — The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA device used to measure the outdoor -air temperature. The outdoor -air temperature is used to determine when the EconoMi $er IV can be used for free cooling.
22 Differen tial Dry Bulb Control — For differential dry bulb control the standard outdoor dry bulb s ensor is used in conjunc- tion with an additional accessory dry bul b sensor (part number CR TEMPSN002A00). The accessory sensor must be mounted in the return airstream.
23 CONTROL CURVE A B C D CONTROL POINT APPROX. °F (°C) A T 50% RH 73 (23) 70 (21) 67 (19) 63 (17) 1 2 1 4 1 6 1 8 2 0 2 2 2 4 26 28 30 32 3 4 3 6 3 8 40 42 4 4 46 9 0 1 0 0 80 70 6 0 50 4 0 3 0 20 1.
24 Exhaust S et Point Adj ustment — The exhaust set point will determine when the e xhaust fan runs based on damper position (if accessory power exhaust is installed). The set point is modi- fied with the Exhaust F an Set Point (EXH SET ) potentiometer .
25 CO 2 sensor to the actuator when the CO 2 concent ration in the space is at 1 100 ppm. The DCV set point may be left at 2 volts since the CO 2 sensor voltage will be i gnored by the EconoMi$er IV controller until it rises above the 3.6 volt set- ting of the minimum position potentiometer .
26 T o a lign the fan and motor pulleys: 1. Loosen the fan pulley set screws. 2. Slide the fan pulley along the fan shaft . 3. Make angular alignment by loosening the motor from the mounting plate. T o adjust belt tension: 1. Loosen the fan mot or mounting nuts.
27 Table 10 — Fan Rpm at Motor Pulley Settings* *Approximate f an r pm shown. †Indicates standard motor and driv e package . **Indicates alternate drive package only . ††Indicates high-static motor and drive pac kage. Table 11A — Elec tric Heater Stat ic Pressur e* (in.
28 Table 12 — Fan Performance, 50TFQ008 — Vertical Discharge Units; Standard Motor and Drive* LEGEND *Motor drive range: 590 to 840 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1. Boldface indicates field-supplied drive i s required.
29 Table 13 — Fan Perf ormance, 50 TFQ008 — Vertica l Discharge Un its; Alterna te Motor and Drive* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
30 Table 14 — Fan Perfor mance, 50TF Q008 — V ertical Disch arge U nits; Hig h-Static M otor an d Drive* LEGEND *Motor drive range: 860 to 1080 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
31 Table 15 — Fan Performance, 50TFQ009 — Vertical Discharge Units; Standard Motor and Drive* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1. Boldface indicates field-supplied drive i s required.
32 Table 16 — Fan Perfor mance, 50TF Q009 — V ertical Disch arge U nits; Hig h-Static M otor an d Drive* LEGEND *Motor drive range: 860 to 1080 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
33 Table 17 — Fan Performance, 50TFQ012 — Vertical Discharge Units; Standard Motor and Drive* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1. Boldface indicates field-supplied drive i s required.
34 Table 18 — Fan Perf ormance, 50 TFQ012 — Vertica l Discharge Un its; Alterna te Motor and Drive* LEGEND *Motor drive range: 835 to 1085 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
35 Table 19 — Fan Perfor mance, 50TF Q012 — V ertical Disch arge U nits; Hig h-Static M otor an d Drive* LEGEND *Motor drive range: 830 to 1130 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
36 Table 20 — Fan Performance, 50TFQ0 08 — Horizontal Discharge Units; Stan dard Motor and Drive* LEGEND *Motor drive range: 590 to 840 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
37 Table 21 — Fan P erformance, 50 TFQ008 — Horizont al Discharge Units; Alte rnate Motor and Driv e* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
38 Table 22 — Fan P erformance, 50TFQ0 08 — Horizontal Dis charge Units; High-Static Mo tor and Drive * LEGEND *Motor drive range: 860 to 1080 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
39 Table 23 — Fan Performance, 50TFQ0 09 — Horizontal Discharge Units; Stan dard Motor and Drive* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
40 Table 24 — Fan P erformance, 50TFQ0 09 — Horizontal Dis charge Units; High-Static Mo tor and Drive * LEGEND *Motor drive range: 860 to 1080 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
41 Table 25 — Fan Performance, 50TFQ0 12 — Horizontal Discharge Units; Stan dard Motor and Drive* LEGEND *Motor drive range: 685 to 935 rpm. All other rpm s require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
42 Table 26 — Fan Per formance, 50 TFQ012 — Horizont al Discharge Units; A lternate Motor and Drive* LEGEND *Motor drive range: 835 to 1085 rpm . All other rpms require field- supplied drive. Refer to page 43 Gener al F an P erformance Notes. NO TES: 1.
43 Table 27 — Fan P erformance, 50TFQ0 12 — Horizontal Dis charge Units; High-Static Mo tor and Drive * LEGEND *Motor drive range: 830 to 1130 rpm . All other rpms require field- supplied drive. Refer to General F an P erformance Notes below . NO TES: 1.
44 PRE-ST ART -UP Proceed as follows to inspect and prepa re the unit for initial start-up: 1. Remove all acces s panels. 2. Read and follow instructions on all W ARNING , CAU- TION, and INFORM A TIO N labels attached t o or shipped with unit. 3. Make the following inspections: a.
45 Heating — T o start the unit, turn on the main pow er supply . Set the thermostat at HEA T position at a setting above room temperature, the fan at AU TO position. The first stage of the thermostat energizes the indoor -fan motor , compressor , and out door fan; the second stage energizes electric heater el ements, if i nstalled.
46 • If SA T > SASP + 5 and economizer position >80% , economizer will go to m inimum positio n for 3 m inutes or until SA T > 6 8 F . • If compressor no. 1 is on then second stage of mechani- cal cooling will be ener gized. Other wise the first stage will be ener gized.
47 HEA T ING , U NIT WITH E CONOMI$ ER2, PRE MIERLINK ™ CO NTRO L AND A R OOM S ENS OR — Every 40 seconds the contro ller will calculat e the required heat stage s (maximum of 3) to maintain supply air t emperature (SA T) if the following qualifying conditions are met: • Indoor fan h as been on fo r at least 30 seconds.
48 FI L T E R S — C lean or repla ce at the st art of each hea ting and cooling season, or more often if operat ing conditions require it. Replacem ent filter s must be the same dime nsions as original filters. OUTDOOR-AIR INLET SCREEN — Cl e an t he s c re en wi th steam or hot water and a mild detergent.
49 TROUBLESHOO TING Unit T rou bleshootin g — For unit troubleshooting, re- fer to Fig. 50 and T able 28. EconoMi$er IV T ro ubleshooti ng — Se e T ab le 29 for EconoMi$er IV logic. A functional view of the EconoMi$er IV is shown in Fig. 51. T ypical settings, sensor ranges, and jumper positions are also shown.
50 5. T urn the DCV set point potentiomet er CW until the DCV LED turns off. The DCV LED should turn off when the potentiometer is approximately 9 v . The actuator should drive fully closed. 6. T urn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on.
51 Fig. 50 — Typical Unit Wi ring Sch ematic (208/ 203-3 -60 Unit S hown) LEGEN D C— Contac tor , Compresso r CAP — Capaci tor CB — Circuit Breaker CLO — Compressor L ockout COMP — Compres.
52 Table 28 — Heating and Cooling Troubleshooting PR OBLEM CA USE REMED Y Compresso r and Outdoor F an Will Not Start. P ower f ailure. Call power company . Fuse blown or circuit breaker tripped. Replace fuse or reset circ uit breaker . Defectiv e thermostat, contac tor , t ransf ormer , or control rela y .
53 Table 29 — EconoMi$er IV Input/Output Logic *For single enthalpy control, the module compares outdoor enthalpy to the ABCD set po int. †P ow er at N term inal determines Occ upied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied). **Modulation is based on the supply-air sensor s ignal.
Manufa cturer reser ves the right to discon tinue, or change at any time, specificat ions or designs w ithout not ice and without incurrin g obligations.
.
Manufa cturer reser ves the right to discon tinue, or change at any time, specificat ions or designs w ithout not ice and without incurrin g obligations.
An important point after buying a device Carrier 50TFQ008-012 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 50TFQ008-012 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 50TFQ008-012 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 50TFQ008-012 you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 50TFQ008-012 will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 50TFQ008-012, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 50TFQ008-012.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 50TFQ008-012. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 50TFQ008-012 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
