Bryant SINGLE PACKAGE ROOFTOP ELECTRIC COOLING/GAS HEATIN Bedienungsanleitung

Cancels: II 581A-155-2 II 581A-155-36/15/99CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . .1INSTALLATION . . . . . . . .

—10—Table 2 — Electrical Data LEGEND*Fuse or HACR circuit breaker.NOTES:1. In compliance with NEC requirements for multimotor an

—11—Damper Vent Position Setting1. Set fan switch at ON position (continuous fan opera-tion) and close night switch if used.2. Set system selector swi

—12—3. Secure lower filter retainer and long section of filtersupport bracket to unit. See Fig. 22. Leave screwsloose on 180 and 240 units.4. Slide ba

—13—B. Differential Enthalpy ControlNOTE: The accessory outdoor-air enthalpy sensor must beinstalled BEFORE the economizer hoods are installed on theu

—14—Sensor Assembly — Install the sensor assembly in the loca-tion shown in Fig. 26.Motor Mount — To ensure proper fan height, replace theexisting mot

—15—NOTE: When compressors are rotating in the wrong direc-tion, the unit will have increased noise levels and will notprovide heating and cooling.Aft

—16—Table 4 — Fan Performance — 581A155225 (Low Heat Units with Optional Indoor Fan Motor) LEGEND*Standard low-medium static drive range

—17—Table 5 — Fan Performance — 581A180270 (Low Heat Units) LEGEND*Standard low-medium static drive range is 873 to 1021 rpm. Alternateh

—18—Table 6 — Fan Performance — 581A240270 (Low Heat Units) LEGEND*Standard low-medium static drive range is 1002 to 1151 rpm. Alternate

—19— Table 7 — Fan Performance — 581A155300 (High Heat Units with Standard Indoor Fan Motor LEGEND*Standard low-medium static drive rang

—2—NOTES:1. Roof curb accessory is shipped disassembled.2. Insulated panels: 1 in. thick neoprene coated 11/2 lb density.3. Dimensions in ( ) are in m

—20— Table 8 — Fan Performance — 581A155300 (High Heat Units with Optional Indoor Fan Motor) LEGEND*Standard low-medium static drive

—21— Table 9 — Fan Performance — 581A180360 (High Heat Units) LEGEND*Standard low-medium static drive range is 873 to 1021 rpm. Alternate

—22—Table 10 — Fan Performance — 581A240360 (High Heat Units) LEGEND*Standard low-medium static drive range is 1002 to 1151 rpm. Alternat

—23—Table 11 — Air Quantity Limits Table 12 — Evaporator Fan Motor SpecificationsBHP — Brake HorsepowerTable 13 — Accessory/FIOP Economizer Static P

—24—XIII. GAS HEATVerify gas pressures before turning on heat as follows:1. Turn off manual gas stop.2. Connect pressure gage to supply gas pressure t

—25—Upon a second-stage call for cooling, compressor no. 1 isenergized and mechanical cooling is integrated with econo-mizer cooling. If the outdoor-a

—26—II. LUBRICATIONA. CompressorsEach compressor is charged with the correct amount of oil atthe factory. Conventional white oil (Sontex 200LT) is use

—27—6. Remove jacking bolt and tapped jacking bolt plate.7. Remove the 2 screws that secure the motor mountingplate to the motor support channel.8. Re

—28—4. Tighten setscrews and replace rubber hubcap to pre-vent hub from rusting to motor shaft.5. Fill hub recess with permagum if rubber hubcap ismis

—29—X. GAS VALVE ADJUSTMENTA. Natural GasThe gas valve opens and closes in response to the thermostator limit control.When power is supplied to valve

—3—IMPORTANT: Curb or adapter roof curb must be level. This isnecessary to permit unit drain to function properly. Unit lev-eling tolerance is ±1/16 i

—30—C. Condenser-Fan Motor ProtectionEach condenser-fan motor is internally protected againstovertemperature.D. High- and Low-Pressure SwitchesIf eith

—31—581A180360 AND 581A240360Fig. 37 — Spark Gap AdjustmentSEEDETAIL"C"SEEDETAIL"C"SEEDETAIL"C"581A155225581A180270, 581

—32—LEGENDFig. 38 — Typical Wiring Schematic and Fig. 39 — Typical Component ArrangementAHA —Adjustable Heat AnticipatorBKR W/AT —Breaks with Amp Turn

—33—Fig. 38 — Typical Wiring Schematic (581A180, 208/230 V Unit Shown) (cont)

—34—ECONOMIZER OPTION/ACCESSORYFig. 39 — Typical Component Arrangement (581A180 Shown)

—35—TROUBLESHOOTINGRefer to Tables 18 and 19 for troubleshooting details.Table 18 — Cooling Service AnalysisLEGENDTXV — Thermostatic Expansion ValvePR

—36—Table 19 — Heating Service AnalysisLEGENDGR — GroundPROBLEM CAUSE REMEDYBurners will not ignite.Misaligned spark electrodes. Check flame ignition

—37—Refer to Fig. 40 for IGC troubleshooting information.LEGENDNOTE: Thermostat Fan Switch in the “AUTO” position.IDM —Induced-Draft MotorIGC —Integra

Copyright 1999 Bryant Heating & Cooling Systems CATALOG NO. 5358-101PACKAGED SERVICE TRAININGPackaged Service Training programs are an excellent w

—4—581A180 ONLYFIELDSUPPLIEDPOWER EXHAUST/BAROMETRIC RELIEF(ACCESSORY ONLY)POWER EXHAUST/BAROMETRIC RELIEF(ACCESSORY ONLY)Fig. 4 — Base Unit Dimension

Copyright 1999 Bryant Heating & Cooling SystemsCL-1CATALOG NO. 5358-101CUT ALONG DOTTED LINECUT ALONG DOTTED LINESTART-UP CHECKLISTI. PRE-START-UP

—5—Fig. 5 — Base Unit Dimensions; 581A240NOTES:1. Refer to print for roof curb accessory dimensions.2. Dimensions in ( ) are in millimeters.3. Cente

—6—Table 1 — Physical DataLEGEND*Evaporator coil fin material/condenser coil fin material.†Weight of 14-in. roof curb.**Circuit 1 uses the lower porti

—7—III. STEP 3 — FIELD FABRICATE DUCTWORKOn vertical units, secure all ducts to roof curb and buildingstructure. Do not connect ductwork to unit. Use

—8—VI. STEP 6 — TRAP CONDENSATE DRAINSee Fig. 4, 5, and 11 fore drain location. Plug is provided indrain hole and must be removed when unit is operati

—9—Route power and ground lines through control box end panelor unit basepan (see Fig. 4 and 5) to connections as shown onunit wiring diagram and Fig.