Bryant PURON 581J User Manual Page 1

581JSINGLE PACKAGE ROOFTOPGAS HEATING/ELECTRIC COOLING UNITSIZES 07, 08, 09 & 12 with PURONR(R--410A) REFIRGERANTInstallation InstructionsNOTE: Re

10581J*12581J*12UNIT SIZEROOFCURBACCESSORYCRRFCURB003A02CRRFCURB004A021’ - 2”[356]2’ - 0”[610]C11082Fig. 5 -- Roof Curb Details — Size 12581J

11A-B0.5” (13)B-C1.0” (25)A-C1.0” (25)MAXIMUM ALLOWABLEDIFFERENCE IN. (MM)C06110Fig. 6 -- Unit Leveling TolerancesStep 5 — Field Fabricate DuctworkCab

12PositioningonCurb—Position unit on roof curb so that the following clearancesare maintained:1/4in. (6.4 mm) clearance between theroof curb and the b

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

14This unit is factory equipped for use with Natural Gas fuelat elevations up to 2000 ft (610 m) above sea level. Unitmay be field converted for opera

15EMBOSSMENT STAINLESS STEEL FITTING SUPPORTBRACKETC08579Fig. 17 -- Gas Line PipingOther hardware required to complete the installation ofthe gas supp

16NOTE: Pressure test the gas supply system after the gassupply piping is connected to the gas valve. The supplypiping must be disconnected from the g

17Step 12 — Make Electrical ConnectionsELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Do not use gas pi

18Provide a ground--fault and short--circuit over--currentprotection device (fuse or breaker) per NEC Article 440(or local codes). Refer to unit infor

19convenience outlet; access is through the unit’s controlbox access panel. See Fig. 26.The primary leads to the convenience outlet transformer arenot

2SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service,maintenance, or use can cause explosion, fire, electricalshock or other c

20For wire runs up to 50 ft. (15 m), use no. 18 AWG(American Wire Gage) insulated wire (35_C minimum).For50to75ft.(15to23m),useno.16AWGinsulatedwire (

21Perfect Humidityt Control ConnectionsPerfect Humidity -- Space RH Controller —NOTE: Perfect Humidity is a factory installed optionwhich is only avai

22HUMIDISTATC11071Fig. 32 -- Typical Perfect Humidityt Dehumidification System Humidistat WiringRcRhW1GY2CO/W2/BY1OATRRSSRTNHUMD1D2V+VgX*CGW2W1Y2Y1REd

23RTU Open Control SystemThe RTU Open control is factory--mounted in the48DC*D unit’s main control box, to the left of the CTB.See Fig. 35. Factory wi

24C11069Fig. 35 -- RTU Open System Control Wiring Diagram581J

25C11070Fig. 36 -- RTU Open System Control Wiring Diagram with Perfect Humidityt581J

26Table 3 – RTU Open Controller Inputs and OutputsPOINT NAMEBACnet OBJECTNAMETYPE OF I/OCONNECTION PINNUMBER(S)DEDICATED INPUTSSpace Temp / Zone Temp

27EconoMi$er2 —The RTU Open control is used with EconoMi$er2 (optionor accessory) for outdoor air management. The damperposition is controlled directl

28Connect T--59: The T--59 space sensor requires aseparate, isolated power supply of 24 VAC. See Fig. 42for internal connections at the T--59. Connect

29COVER REMOVED SIDE VIEWC07135Fig. 45 -- Outdoor Air Quality Sensor CoverWiring the Outdoor Air CO2Sensor: A dedicatedpower supply is required for th

3Horizontal Connections / EconomizerVertical Connections / EconomizerC11110Fig. 1 -- Unit Dimensional Drawing — Sizes 07--09581J

30Relative 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

31Communication Wiring -- ProtocolsGeneral —Protocols are the communication languages spoken bycontrol devices. The main purpose of a protocol is toco

32Local AccessBACview6Handheld: The BACview6is a keypad/displayinterface used to connect to the RTU Open to access thecontrol information, read sensor

33Table 4 – LEDsThe LEDs on the RTU Open show the status of certain functionsIf this LED is on... Status is...Power RTU Open has powerRx RTU Open is r

34Return Air Enthalpy Sensor —Mount the return--air enthalpy sensor (33CSENTSEN) inthe return--air section of the economizer. The return airsensor is

35takes the appropriate action to shut down fans andblowers, change over air handling systems, notify the firealarm control panel, etc.The sensor uses

36Return AirSampling TubeC08129Fig. 59 -- Return Air Sampling Tube LocationCompleting Installation of Return Air Smoke Sensor:1. Unscrew the two screw

37Table 5 – Unit Wire/Fuse or HACR Breaker Sizing DataUNITNOM.V --- P h --- H zIFMTYPECOMBUSTIONFAN MOTORFLAPOWEREXHA USTFLANO C.O. or UNPWR C.O.NO P.

38Table 5 — Unit Wire/Fuse or HACR Breaker Sizing Data (cont)UNITNOM.V --- P h --- H zIFMTYPECOMBUSTIONFAN MOTORFLAPOWEREXHA USTFLAw/ PWRD C.O.NO P.E.

39Legend and Notes for Table 5LEGEND:BRKR --- Circuit breakerCO --- Convenient outletDISC --- DisconnectFLA --- Full load ampsLRA --- Locked rotor amp

4C11111Fig. 1 -- Unit Dimensional Drawing — Sizes 07--09 (cont.)581J

40Economizer 2 Position DamperUnit Without Economizer or2 Position DamperC10150Fig. 62 -- EconoMi$ert IV WiringStep 13 — Adjust Factory--Installed Opt

5Vertical Connections / EconomizerHorizontal Connections / EconomizerC11112Fig. 2 -- Unit Dimensional Drawing — Size 12581J

6C11113Fig. 2 -- Unit Dimensional Drawing — Size 12 (cont.)581J

7INSTALLATIONJobsite SurveyComplete the following checks before installation.1. Consult local building codes and the NEC (NationalElectrical Code) ANS

8Step 2 — Plan for Sequence of Unit InstallationThe support method used for this unit will dictate differentsequences for the steps of unit installati

9581J*07-09UNIT SIZEROOFCURBACCESSORYCRRFCURB003A01CRRFCURB004A011’ - 2”[356]A2’ - 0”[610]C11081Fig. 4 -- Roof Curb Details — Sizes 07--09581J