Carrier 50TFQ008-012 User Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

10Table 3B — Electrical Data (Units With Electrical Convenience Outlet)NOTE: Legend and Notes for Electrical Data are on page 11.50TFQUNIT SIZENOMINAL

11Table 3B — Electrical Data (Units With Electrical Convenience Outlet) (cont)LEGEND*Heaters are field installed only.†Used to determine minimum disco

12FIELD CONTROL WIRING — Install a Carrier-approvedaccessory thermostat assembly according to the installationinstructions included with the accessory

13Table 4 — Heat Anticipator Settings*kW is based on 240, 480, or 575 v.CONVENIENCE OUTLET — An optional convenience out-let provides power for roofto

14PREMIERLINK™ CONTROL — The PremierLink control-ler is compatible with Carrier Comfort Network® (CCN)devices. This control is designed to allow users

15Table 5 — PremierLink™ Sensor Usage*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT andOutdoor Air Temperature Sensor HH79NZ01

16TB-1RY1Y2W1W2GCX12345678TB-312345678TB-212345678J6ANAL OGJ50-20mAINJ4DISCRETEJ1PWRJ2COMMSJ90-20 mAJ8RelaysHK50AA039BRNBRNWHTWHTREDPNKPNKORNORNORNORN

17Enthalpy Sensors and Control— The enthalpy control(HH57AC077) is supplied as a field-installed accessory to beused with the economizer damper contro

18OPTIONAL ECONOMI$ER IV AND ECONOMI$ER2 —See Fig. 19 for EconoMi$er IV component locations. SeeFig. 20 for EconoMi$er2 component locations.NOTE: Thes

196. Insert the hood divider between the hood sides. SeeFig. 24 and 25. Secure hood divider with 2 screws oneach hood side. The hood divider is also u

2Fig. 1 — Roof Curb Details

20435286711011912PINKVIOLETBLACKBLUEYELLOWNOTE 1NOTE 3RUN500 OHMRESISTOR-+OPTIONAL COSENSOR4-20mAOUTPUT50HJ540573ACTUATORASSEMBLYREDWHITEECONOMISER2 P

21ECONOMI$ER IV STANDARD SENSORSOutdoor Air Temperature (OAT) Sensor— The outdoor airtemperature sensor (HH57AC074) is a 10 to 20 mA deviceused to mea

22Differential Dry Bulb Control— For differential dry bulbcontrol the standard outdoor dry bulb sensor is used in conjunc-tion with an additional acce

23CONTROLCURVEABCDCONTROL POINTAPPROX. °F (°C)AT 50% RH73 (23)70 (21)67 (19)63 (17)12 14 16 18 20 22 24 26 28

24Exhaust Set Point Adjustment— The exhaust set point willdetermine when the exhaust fan runs based on damper position(if accessory power exhaust is i

25CO2sensor to the actuator when the CO2concentration in thespace is at 1100 ppm. The DCV set point may be left at 2 voltssince the CO2sensor voltage

26To align the fan and motor pulleys:1. Loosen the fan pulley setscrews.2. Slide the fan pulley along the fan shaft.3. Make angular alignment by loose

27Table 10 — Fan Rpm at Motor Pulley Settings**Approximate fan rpm shown.†Indicates standard motor and drive package.**Indicates alternate drive packa

28Table 12 — Fan Performance, 50TFQ008 — Vertical Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 590 to 840 rpm. All other rpms r

29Table 13 — Fan Performance, 50TFQ008 — Vertical Discharge Units; Alternate Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpms

3SLAB MOUNT (Horizontal Units Only) — Provide a levelconcrete slab that extends a minimum of 6 in. beyond the unitcabinet on all sides. Install a grav

30Table 14 — Fan Performance, 50TFQ008 — Vertical Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 860 to 1080 rpm. All other rp

31Table 15 — Fan Performance, 50TFQ009 — Vertical Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpms r

32Table 16 — Fan Performance, 50TFQ009 — Vertical Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 860 to 1080 rpm. All other rp

33Table 17 — Fan Performance, 50TFQ012 — Vertical Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpms r

34Table 18 — Fan Performance, 50TFQ012 — Vertical Discharge Units; Alternate Motor and Drive*LEGEND*Motor drive range: 835 to 1085 rpm. All other rpms

35Table 19 — Fan Performance, 50TFQ012 — Vertical Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 830 to 1130 rpm. All other rp

36Table 20 — Fan Performance, 50TFQ008 — Horizontal Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 590 to 840 rpm. All other rpms

37Table 21 — Fan Performance, 50TFQ008 — Horizontal Discharge Units; Alternate Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpm

38Table 22 — Fan Performance, 50TFQ008 — Horizontal Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 860 to 1080 rpm. All other

39Table 23 — Fan Performance, 50TFQ009 — Horizontal Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpms

4NOTES:1. Dimension in ( ) is in millimeters.2. Hook rigging shackles through holes in base rail, as shown in detail “A.”Holes in base rails are cente

40Table 24 — Fan Performance, 50TFQ009 — Horizontal Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 860 to 1080 rpm. All other

41Table 25 — Fan Performance, 50TFQ012 — Horizontal Discharge Units; Standard Motor and Drive*LEGEND*Motor drive range: 685 to 935 rpm. All other rpms

42Table 26 — Fan Performance, 50TFQ012 — Horizontal Discharge Units; Alternate Motor and Drive*LEGEND*Motor drive range: 835 to 1085 rpm. All other rp

43Table 27 — Fan Performance, 50TFQ012 — Horizontal Discharge Units; High-Static Motor and Drive*LEGEND*Motor drive range: 830 to 1130 rpm. All other

44PRE-START-UPProceed as follows to inspect and prepare the unit for initialstart-up:1. Remove all access panels.2. Read and follow instructions on al

45Heating — To start the unit, turn on the main power supply.Set the thermostat at HEAT position at a setting above roomtemperature, the fan at AUTO p

46• If SAT > SASP + 5 and economizer position >80%,economizer will go to minimum position for 3 minutes oruntil SAT > 68 F.• If compressor no

47HEATING, UNIT WITH ECONOMI$ER2, PREMIERLINK™CONTROL AND A ROOM SENSOR — Every 40 secondsthe controller will calculate the required heat stages (maxi

48FILTERS — Clean or replace at the start of each heating andcooling season, or more often if operating conditions require it.Replacement filters must

49TROUBLESHOOTINGUnit Troubleshooting —For unit troubleshooting, re-fer to Fig. 50 and Table 28.EconoMi$er IV Troubleshooting — See Table 29for EconoM

5Table 1 — Physical DataLEGENDBhp — Brake Horsepower*Weightof14-in.roofcurb.UNIT SIZE 50TFQ 008 009 012NOMINAL CAPACITY (tons) 71/281/210OPERATING WEI

505. Turn the DCV set point potentiometer CW until the DCVLED turns off. The DCV LED should turn off when thepotentiometer is approximately 9 v. The a

51Fig. 50 — Typical Unit Wiring Schematic (208/203-3-60 Unit Shown)LEGENDC—Contactor, CompressorCAP — CapacitorCB — Circuit BreakerCLO — Compressor Lo

52Table 28 — Heating and Cooling TroubleshootingPROBLEM CAUSE REMEDYCompressor and Outdoor FanWill Not Start.Power failure. Call power company.Fuse bl

53Table 29 — EconoMi$er IV Input/Output Logic*For single enthalpy control, the module compares outdoorenthalpy to the ABCD set point.†Power at N termi

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

6Fig. 6 — Base Unit Dimensions

7Step 5 — Make Electrical ConnectionsFIELD POWER SUPPLY — All units except 208/230-vunits are factory-wired for the voltage shown on the unit name-pla

8Table 2 — Electric Heating Capacities*Two heater packages required to provide kW indicated.†Use CRSINGLE008A00 for units with an electrical convenien

9Table 3A — Electrical Data (Units Without Electrical Convenience Outlet) (cont)NOTE: Legend and Notes for Electrical Data are on page 11.50TFQUNIT SI