Carrier 50TC User Manual

50TC---*16Single Package RooftopCooling Onlywith Puronr (R---410A) RefrigerantSize 16Installation InstructionsNOTE: Read the entire instruction manual

104. Carefully lift the hood assembly (with metal tray)through the filter access opening and assemble per thesteps outlined in Economizer Hood and Two

11Step 9 — Install External Condensate Trap andLineThe unit has one3/4-in. condensate drain connection onthe end of the condensate pan and an alternat

12C10012Fig. 19 -- Conduit into Single Point BoxIf the field disconnect is larger than 100A, it must beattached to the unit using accessory CRDISBKT00

13All Units —All field wiring must comply with the NEC and localrequirements.Size wire based on MCA (Minimum Circuit Amps) on theunit informative plat

14ConvenienceOutletGFCIPwd-COFuse SwitchPwd-COTransformerDisconnectAccess PanelC10857Fig. 24 -- Convenience Outlet LocationNon--powered type: This typ

15ELECTRICAL OPERATION HAZARDFailure to follow this warning could result in personalinjury or death.Using unit--mounted convenience outlets: Units wit

16Field--supplied and field--installed liquidtight conduitconnectors and conduit may be attached to the connectors onthe basepan. Pull correctly rated

17HEATERMOUNTINGBRACKETHEATERMODULE(LOCATION 2)HEATERMODULE(LOCATION 1)SINGLE POINTBOXMOUNTINGSCREWSINGLEPOINT BOXHEATERCOVERSMANUAL RESETLIMIT SWITCH

18Heater Low--Voltage Control Connections —One or two heaters can be installed in the unit. Use thewiring procedure listed below for each heater asdet

19Humidi--MiZerRControl ConnectionsHumidi--MiZer – Space RH Controller —NOTE: The Humidi--MiZer is a factory installed option.The Humidi--MiZer dehumi

2Outdoor Air Quality Sensor 36...Space Relative Humidity Senor or Humidistat 36..Smoke Detector/Fire Shutdown (FSD) 37...Connectin

20HUMIDISTATC11208Fig. 37 -- Typical Humidi--MiZerRAdaptive Dehumidification System Humidistat WiringRcRhW1GY2CO/W2/BY1OATRRSSRTNHUMD1D2V+VgX*CGW2W1Y2

21PremierLinkt (Factory Option)C08199Fig. 39 -- PremierLink ControllerNOTE: Refer to Form 33CS--67SI for completePremierLink configuration, operating

22C11209Fig. 41 -- PremierLink Wiring Schematic50TC--*16

23C11210Fig. 42 -- PremierLink Wiring Schematic with Humidi--MiZerR50TC--*16

24Supply Air Temperature (SAT) Sensor —On FIOP--equipped 50TC--D16 units, the unit is suppliedwith a supply--air temperature (SAT) sensor (33ZCSENSAT)

25Table 3 – Space Sensor ModeTB3 TERMINAL FIELD CONNECTION INPUT SIGNAL1 T 5 5 --- S E N / T 5 6 --- S E N Analog (10k thermistor)2 RMTOCC Discrete, 2

26Space Sensors —The PremierLink controller is factory--shipped configured forSpace Sensor Mode. A Carrier T--55 or T--56 space sensormust be used. T-

27Economizer ControlsIndoor Air Quality (CO2sensor) —The indoor air quality sensor accessory monitors spacecarbon dioxide (CO2) levels. This informati

28SEN J5-2J5-3COM1311TB3TB3IAQ SensorPL24 VAC C10285Fig. 52 -- Outdoor CO2Sensor ConnectionsSpace Relative Humidity Sensor or HumidistatConnections —S

29Smoke Detector/Fire Shutdown (FSD) —This function is available only when PremierLink isconfigured for (Space) Sensor Mode. The unit isfactory--wired

3Horizontal Connections / EconomizerVertical Connections / EconomizerC10770Fig. 1 -- Unit Dimensional Drawing – 16 Size Unit50TC--*16

30CCN Communication Bus —The PremierLink controller connects to the bus in a daisychain arrangement. Negative pins on each componentmust be connected

31RTU Open Control SystemThe RTU Open control is factory--mounted in the50TC--D16 unit’s main control box, to the left of the CTB.See Fig. 61. Factory

32C11211Fig. 62 -- RTU Open System Control Wiring Diagram50TC--*16

33C11212Fig. 63 -- RTU--Open System Control Wiring Diagram with Humidi--MiZerR50TC--*16

34Table 7 – RTU Open Controller Inputs and OutputsPOINT NAMEBACnet OBJECTNAMETYPE OF I/OCONNECTION PINNUMBER(S)DEDICATED INPUTSSpace Temp / Zone Temp

35Space Temperature (SPT) Sensors —There are two types of SPT sensors available from Carrier,resistive input non-communicating (T55, T56, and T59)and

36Wiring the Indoor Air Quality Sensor: For each sensor,use two 2--conductor 18 AWG (American Wire Gage)twisted--pair cables (unshielded) to connect t

37Relative Humidity Sensor(Polarized Male Connector)J4-1 or J4-4 + 24 VDC Supply VoltageJ4-2 or J4-5 (-) 4 to 20 mA Current Loop Outputto RTU-OPEN4-20

38Communication Wiring -- ProtocolsGeneral —Protocols are the communication languages spoken bycontrol devices. The main purpose of a protocol is toco

39Local Access —BACview6Handheld: The BACview6is a keypad/displayinterface used to connect to the RTU Open to access thecontrol information, read sens

4C10858Fig. 1 -- Unit Dimensional Drawing – 16 Size Unit (cont.)INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Consult

40Table 8 – LEDsThe LEDs on the RTU Open Control Board (see Fig. 60) show the status of certain functions:If this LED is on... Status is...Power RTU O

41To wire the return air enthalpy sensor, perform thefollowing:1. Use a 2--conductor, 18 or 20 AWG, twisted pair cableto connect the return air enthal

42Air is introduced to the duct smoke detector sensor’ssensing chamber through a sampling tube that extends intothe HVAC duct and is directed back int

43Completing Installation of Return Air Smoke Sensor:1. Unscrew the two screws holding the Return AirSensor detector plate. See Fig. 80. Save the scre

44Table 9 – Unit Wire/Fuse or HACR Breaker Sizing DataUNITN O M . V --- P h --- H zIFM TYPEELEC. HTR PE NO C.O. or UNPWR C.O.CRHEATER***---A00Nom(kW)F

45Table 9 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H zIFM TYPEELEC. HTR PE w/ PWRD C.O.CRHEATER***A00Nom(kW)FLA FL

46Legend and Notes for Table 9LEGEND:BRKR --- Circuit breakerCO --- Convenience outletDISC --- DisconnectFLA --- Full load ampsIFM --- Indoor fan moto

47Step 12 — Install AccessoriesAvailable accessories include:Roof Curb (must be installed before unit)Thru--base connection kit (must be installed bef

48Copyright 2011 Ca rrier Co rp. D 7310 W. Morris St. D Indianapolis, IN 46231 Pri nted in U.S.A. Edition Date: 05/11Manufacturer reserves the right t

5Roof Mount —Check building codes for weight distributionrequirements. Unit operating weight is shown in Table 1.Table 1 – Operating Weights50TC*D16CO

6C10772Fig. 3 -- Roof Curb Details50TC--*16

7A-B0.5” (13)B-C1.0” (25)A-C1.0” (25)MAXIMUM ALLOWABLEDIFFERENCE IN. (MM)ABCC10001Fig. 4 -- Unit Leveling TolerancesStep 5 — Field Fabricate DuctworkC

8DETAIL “A”PLACE ALL SEAL STRIP IN PLACE BEFORE PLACING UNIT ON ROOF CURB.DUCT ENDSEE DETAIL “A”914 - 1371( 36” - 54” )“B”“A”“C”C10774UNITMAX WEIGHTDI

9Step 7 — Convert to Horizontal and ConnectDuctwork (when required)Unit is shipped in the vertical duct configuration. Unitwithout factory--installed