Carrier 50HCQA User Manual

150HCQASingle Package RooftopHeat Pumpwith Puronr (R---410A) RefrigerantS i z e s 0 4 --- 0 6Installation InstructionsNOTE: Read the entire instructio

10Economizer Hood and Two--Position Hood —NOTE: If the power exhaust accessory is to be installedon the unit, the hood shipped with the unit will not

11NOTE: Trap should be deep enough to offset maximum unit staticdifference. A 4” (102) trap is recommended.MINIMUM PITCH1” (25mm) PER10’ (3m) OF LIN

12Units with Factory--Installed Disconnect —The factory--installed option disconnect switch is locatedin a weatherproof enclosure located under the ma

13Mount the weatherproof cover to the backing plate asshown in Fig. 18. Remove two slot fillers in the bottom ofthe cover to permit service tool cords

14LOW VOLTAGECONDUITCONNECTORHIGH VOLTAGECONDUITCONNECTORC08637Fig. 20 -- Thru--Base Connection FittingsField--supplied and field--installed liquid--t

15RACEWAYHOLE IN END PANEL (HIDDEN)C08027Fig. 22 -- Field Control Wiring RacewayElectric Heaters50HCQ units may be equipped with field--installedacces

16TRACKFLANGEC08135Fig. 25 -- Typical Module InstallationSingle Point Boxes and Supplementary FuseWhen the unit MOCP device value exceeds 60--A,unit--

17PremierLinkt (Factory--Option)C08199Fig. 28 -- PremierLink ControllerThe PremierLink controller (see Fig. 28) is compatiblewith Carrier Comfort Netw

18C10227Fig. 30 -- Typical PremierLink Wiring Schematic50HCQA

19Outdoor Air Temperature (OAT) Sensor —The OAT is factory--mounted in the EconoMi$er2 (FIOPor accessory). It is a nominal 10k ohm thermistor attached

2Return Air Enthalpy Sensor 29...Indoor Air Quality (CO2sensor) 30...Outdoor Air Quality Sensor 30...Connecting

20GJ4-12J4-10J4-8Y1Y22RR46J4-6J4-4W2C810C SPACETHERMOSTATPL CTBTHERMOSTATW1TB1 CTBTHERMOSTATC08119Fig. 35 -- Space Thermostat Conne

21Table 4 – Space Sensor ModeTB1 TERMINAL FIELD CONNECTION INPUT SIGNAL1 T 5 5 --- S E N / T 5 6 --- S E N Analog (10k thermistor)2 RMTOCC Discrete, 2

22If the 50HCQ unit has an economizer system andfree--cooling operation is required, a sensor representingReturn Air Temperature must also be connecte

238765432121HG24 VACOR24 VDCNCALARMRELAYCONTACTSCOMNO}0-10VDCSIG COM4-20mA++-+-J3 J4C08635Fig. 38 -- Indoor/Outdoor Air Quality (CO2)Sensor(33ZCSENCO2

24On 50HCQ units equipped with factory--installed SmokeDetector(s), the smoke detector controller implements theunit shutdown through its NC contact s

25signal pins must be wired to the signal ground pins.Wiring connections for CCN must be made at the 3--pinplug.At any baud (9600, 19200, 38400 baud),

26RTU--MP Control SystemThe RTU--MP controller, see Fig. 47, provides expandedstand--alone operation of the HVAC system plusconnection and control thr

27C10229Fig. 49 -- Typical RTU--MP System Control Wiring Diagram50HCQA

28Table 8 – RTU--MP Controller Inputs and OutputsPOINT NAMEBACnet OBJECTNAMETYPE OF I/OCONNECTION PINNUMBERSINPUTSSpace Temperature Sensor sptsens AI

29Field ConnectionsField connections for accessory sensors and input devicesare made the RTU--MP, at plugs J1, J2, J4, J5, J11 and J20.All field contr

3Horizontal Connections / EconomizerVertical Connections / EconomizerC10230Fig. 1 -- Unit Dimensional Drawing – 04 — 06 Size Units50HCQA

30To 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

31Input 8 or 9 is recommended for easy of installation. Referto Fig. 47 and Fig. 49 for wire terminations at J5.Remote Occupancy: The remote occupancy

32Local Access —BACview6Handheld: The BACview6is a keypad/displayinterface used to connect to the RTU--MP to access thecontrol information, read senso

33Table 9 – LEDsThe LEDs on the RTU--MP show the status of certain functionsIf this LED is on... Status is...Power The RTU MP has powerRx The RTU MP i

34Duct smoke sensorcontrollerFastener(2X)Controller coverConduit nuts(supplied by installer)Conduit support plateCover gasket(ordering option)Conduit

35location and the tubing to the sampling tube be connected.See “Completing Installation of Return Air SmokeSensor:” for details.)Return Air Detector

36Table 10 – Unit Wire/Fuse or HACR Breaker Sizing DataUNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. NO C.O. or UNPWR C.O.CRHEATER***NOM(KW)FLA

37Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. w/ PWRD C.O.CRHEATER***NOM(KW)FLA FL

38Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. NO C.O. or UNPWR C.O.CRHEATER***NOM(

39Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. w/ PWRD C.O.CRHEATER***NOM(KW)FLA FL

4C10231Fig. 1 -- Unit Dimensional Drawing – 04 — 06 Size Unit (cont.)INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Co

40Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. NO C.O. or UNPWR C.O.CRHEATER***NOM(

41Table 10 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITN O M . V --- P h --- H ZIFM TYPEELEC. HTR P.E. w/ PWRD C.O.CRHEATER****NOM(KW)FLA F

42Legend and Notes for Table 10LEGEND:BRKR --- Circuit breakerCO --- Convenient outletDD --- Direct driveindoor fan motorDISC --- DisconnectFLA --- Fu

43Step 12 — Install AccessoriesAvailable accessories include:Roof CurbThru--base connection kit (must be installed before unitis set on curb)Manual ou

44Copyright 2010 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 04/10Manufacturer reserves the right to c

5Roof Mount —Check building codes for weight distributionrequirements. Unit operating weight is shown in Table 1.Step 2 — Plan for Sequence of Unit In

650HCQA04-06ROOFCURBACCESSORYCRRFCURB001A02CRRFCURB002A021’ - 2”[356]2’ - 0”[610]UNIT SIZEC10232Fig. 3 -- Roof Curb Details50HCQA

7A-B0.5” (13)B-C1.0” (25)A-C1.0” (25)MAXIMUM ALLOWABLEDIFFERENCE IN. (MM)C06110Fig. 4 -- Unit Leveling TolerancesStep 5 — Field Fabricate DuctworkCabi

8C06005UNITMAX WEIGHTDIMENSIONSA B CLB KG IN MM IN MM IN MM50HCQA04 725 330 74.5 1890 38.5 980 33.5 85050HCQA05 845 384 74.5 1890 37.5 955 41.5 105550

9Step 8 — Install Outside Air HoodEconomizer Hood Removal and Setup --Factory Option —1. The hood is shipped in knock--down form and locatedin the ret