Carrier 48HC Uživatelský manuál

48HCSingle Package RooftopGas Heating/Electric Cooling Unitwith Puronr (R---410A) RefrigerantSizes: 17, 20, 24, 28Installation InstructionsNOTE: Read

10Step 2 — Plan for Sequence of Unit InstallationThe support method used for this unit will dictate differentsequences for the steps of unit installat

11C10954Fig. 6 -- Roof Curb Details – 17 Size Unit48HC

12C10955Fig. 7 -- Roof Curb Details – 20 and 24 Size Units48HC

13C10956Fig. 8 -- Roof Curb Details – 28 Size Unit48HC

14A-B0.25” (6)B-C0.5” (12)A-C0.5” (12)MAXIMUM ALLOWABLEDIFFERENCE IN. (MM)ABCC10628Fig. 9 -- Unit Leveling TolerancesStep 5 — Field Fabricate Ductwork

15PositioningonCurb—Position unit on roof curb so that the following clearancesare maintained:1/4in. (6 mm) clearance between the roofcurb and the bas

16To assemble the outside air hood:1. Remove hood top panel from shipping position onunit end.2. Install four angles to the upper end panel using thes

17Table 2 – Typical3/4--in NPT Field Supplied Piping PartsItem Qty CPN Description1 1 CA15RA201 90 Deg Street Elbow2 1 CA01CA226 5 Inch Long Nipple3 1

18Factory--Option Thru--Base Connections —Electrical Connections: Knockouts are located in thecontrol box area. Remove the appropriate size knockoutfo

19Step 11 — Install External Condensate Trap andLineThe unit has one3/4-in. condensate drain connection onthe end of the condensate pan (see Fig. 21).

2Field Connections 39...Space Temperature (SPT) Sensors 40...Indoor Air Quality (CO2)Sensor 40...Outdoor Air

20FIRE HAZARDFailure to follow this warning could result inintermittent operation or unsatisfactory performance.Do not connect aluminum wire between d

21Two types of convenience outlets are offered on 48HCmodels: Non--unit powered and unit--powered. Both typesprovide a 125--volt GFCI (ground--fault c

222.050HE501288NOTICE/AVISConvenience Outlet UtilizationMaximum Intermittent Use 15 - AmpsMaximum Continuous Use 8 - AmpsObserve a 50% limit on the

23CW2GW1RY1 TypicalThermostatCorrectionsO/B/Y2(see Note)Note: Typical multi-function marking. Follow manufacturer’s configuration instructions t

24Humidi--MiZerRControl ConnectionsHumidi--MiZer – Space RH Controller —NOTE: The Humidi--MiZer is a factory installed option.The Humidi--MiZer dehumi

25C11139Fig. 34 -- Typical Humidi--MiZerRAdaptive Dehumidification System Humidistat WiringRcRhW1GY2CO/W2/BY1OATRRSSRTNHUMD1D2V+VgX*CGW2W1Y2Y1REDGE Pr

26PremierLinkt (Factory--Option)C08199Fig. 36 -- PremierLink ControllerThe PremierLink controller (see Fig. 36) is compatiblewith Carrier Comfort Netw

27C11140Fig. 38 -- PremierLink Wiring Schematic48HC

28C11141Fig. 39 -- PremierLink Wiring Schematic with Humidi--MiZerR48HC

29Supply Air Temperature (SAT) Sensor —On FIOP--equipped 48HC unit, the unit is supplied with asupply--air temperature (SAT) sensor (33ZCSENSAT).This

3C10896Fig. 1 -- Unit Dimensional Drawing – 17 Size Unit48HC

30Table 5 – 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

31Space Sensors —The PremierLink controller is factory--shipped configuredfor Space Sensor Mode. A Carrier T--55 or T--56 spacesensor must be used. T-

32Economizer ControlsIndoor Air Quality (CO2)Sensor—The indoor air quality sensor accessory monitors spacecarbon dioxide (CO2) levels. This informatio

33J5-2J5-31311TB3TB3OAQ SensorPL24 VAC4-20mASIG COMC11157Fig. 49 -- Outdoor CO2Sensor ConnectionsSpace Relative Humidity Sensor or HumidistatConnectio

34Smoke Detector/Fire Shutdown (FSD) —This function is available only when PremierLink isconfigured for (Space) Sensor Mode. The unit isfactory--wired

35CCN Communication Bus —The PremierLink controller connects to the bus in a daisychain arrangement. Negative pins on each componentmust be connected

36RTU Open Control SystemThe RTU Open control is factory--mounted in the 48HCunit’s main control box, to the right of the CTB. SeeFig. 37. Factory wir

37C11142Fig. 58 -- RTU Open System Control Wiring Diagram48HC

38C11143Fig. 59 -- RTU Open System Control Wiring Diagram with Humidi--MiZerR48HC

39Table 9 – RTU Open Controller Inputs and OutputsPOINT NAMEBACnet OBJECTNAMETYPE OF I/OCONNECTION PINNUMBER(S)DEDICATED INPUTSSpace Temp / Zone Temp

4C10897Fig. 1 -- Unit Dimensional Drawing – 17 Size Unit (cont.)48HC

40to the RTU Open. Connect to the wires to the removablePhoenix connectors and then reconnect the connectors tothe board.Space Temperature (SPT) Senso

41isolated 24 vac power source to the sensor and to connectthe sensor to the control board terminals.To connect the sensor to the control, identify th

42Relative 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

43Communication Wiring -- ProtocolsGeneral —Protocols are the communication languages spoken bycontrol devices. The main purpose of a protocol is toco

44Local Access —BACview6Handheld: The BACview6is a keypad/displayinterface used to connect to the RTU Open to access thecontrol information, read sens

45Table 10 – LEDsThe LEDs on the RTU Open Control Board (see Fig. 57) show the status of certain functions:If this LED is on... Status is...Power RTU

46GRABLKRED– 4-20 Main+ VDC Out– 4-20 Main Out+ 24-36 VDC InLOWGND24V7PL6-1 (24-V)PL6-4 (COM)Outside AirEnthalpy SwitchReturn AirEnthalpySens

47To install the return air sensor sampling tube:1. Remove the tube from its shipping location.2. Open the unit end to access the return air sensor (l

48Table 11 -- Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITNOM.V --- P h --- H zIFMTYPECOMBUSTI ONF AN MOTORPOWEREXHAUSTw/ PWRD C.O.NO P.E. w/

49Legend and Notes for Table 11LEGEND:BRKR --- Circuit breakerCO --- C onvenience outletDISC --- DisconnectFLA --- Full load ampsLRA --- Locked rotor

5C10892Fig. 2 -- Unit Dimensional Drawing – 20 and 24 Size Units48HC

50Economizer 2 Position DamperUnit Without Economizer or2 Position DamperC10645Fig. 76 -- EconoMi$ert IV WiringStep 13 — Adjust Factory--Installed Opt

5148HC

52Copyright 2011 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 04/11Manufacturer r es er ves the right t

6C10893Fig. 2 -- Unit Dimensional Drawing – 20 and 24 Size Units (cont.)48HC

7C10900Fig. 3 -- Unit Dimensional Drawing – 28 Size Unit48HC

8C10901Fig. 3 -- Unit Dimensional Drawing – 28 Size Unit (cont.)48HC

9INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Consult local building codes and the NEC (NationalElectrical Code) ANS