Bryant DURAPAC PLUS 581A User Manual

Cancels: II 581A-210-1 II 581A-210-210/1/05installation, start-up andservice instructionsSINGLE PACKAGE ROOFTOPELEC TRIC COOLING/GAS HEATING UNITS581A

—10—VI. STEP 6 — INSTALL FLUE HOOD AND INLET HOODFlue hood (smaller hood), inlet hood (larger hood), andscreens are shipped inside the unit in the fan

—11—IMPORTANT: Natural gas pressure at unit gas connectionmust not be less than 5.5 in. wg or greater than 13.0 in. wg.Size gas-supply piping for 0.5

—12—Set heat anticipator settings as follows:Settings may be changed slightly to provide a greater degreeof comfort for a particular installation.X. S

—13—Table 4A — Electrical Data — Units Without Convenience Outlet LEGEND*Fuse or HACR circuit breaker.NOTES:1. In compl

—14—Table 4B — Electrical Data — Units With Optional Convenience Outlet LEGEND*Fuse or HACR circuit breaker.NOTES:1. In

—15—TOP HOODSECTIONSEALSTRIPLOCATIONBOTTOMHOODSECTIONFILTERGUIDEFILTERGUIDEHOODSIDEADDSEALSTRIPADDSEALSTRIPHOODSIDEINNERFILTERTRACKADDSEALSTRIPADDSEAL

—16—XI. STEP 11 — POSITION OPTIONAL POWER EXHAUSTOR BAROMETRIC RELIEF DAMPER HOODThe optional power exhaust or barometric relief dampers areshipped as

—17—PRE-START-UPProceed as follows to inspect and prepare the unit for initialstart-up: 1. Remove all access panels.2. Read and follow instructions on

—18—VIII. CONDENSER FANS AND MOTORSCondenser fans and motors are factory set. Refer toCondenser-Fan Adjustment section (page 39) as required.IX. RETUR

—19—Table 6 — Fan Performance — 581A210 Medium Heat Vertical Discharge Units* LEGEND*Motor drive ranges:Low Range: 647-886 (208/230 and 460-v), 810

—2—IMPORTANT: The gasketing of the unit to the roof curb iscritical for a watertight seal. Install gasket with the roofcurb as shown in Fig. 1. Impro

—20—Table 7 — Fan Performance — 581A210 High Heat Vertical Discharge Units* LEGEND*Motor drive ranges:Low Range: 647-886 (208/230 and 460-v), 810-1

—21—Table 9 — Fan Performance — 581A240 Medium Heat Vertical Discharge Units* LEGEND*Motor drive ranges:Low Range: 949-1206High Range: 941-1176All

—22—Table 11 — Fan Performance — 581A300 Low Heat Vertical Discharge Units* LEGEND*Motor drive ranges:Low Range: 941-1176High Range: 1014-1297All o

—23—Table 13 — Fan Performance — 581A300 High Heat Vertical Discharge Units* LEGEND*Motor drive ranges:Low Range: 941-1176High Range: 1014-1297All

—24—Table 14 — Fan Performance — 581A210 Low Heat Horizontal Discharge Units* LEGEND*Motor drive ranges:Low Range: 896-1227 (20

—25—Table 16 — Fan Performance — 581A210 High Heat Horizontal Discharge Units* LEGEND*Motor drive ranges:Low Range: 896-1227 (2

—26—Table 18 — Fan Performance — 581A240 Medium Heat Horizontal Discharge Units* LEGEND*Motor drive ranges:Low Range: 1113-1414

—27—Table 20 — Fan Performance — 581A300 Low Heat Horizontal Discharge Units* LEGEND*Motor drive ranges:Low Range: 941-1176High

—28—Table 22 — Fan Performance — 581A300 High Heat Horizontal Discharge Units* LEGEND*Motor drive ranges:Low Range: 941-1176Hig

—29—Table 24 — Operation Air Quantity Limits*7000 cfm minimum recommended above 1.0 in. wg external static pressure.Table 25 — Evaporator Fan Motor Sp

—3—Fig. 1 — Roof Curb Details

—30—Table 26 — Accessory/FIOP Static Pressure (in. wg)*LEGEND*The static pressure must be added to the external static pressure. The sum and the evapo

—31—Table 28 — EconoMi$er IV Sensor Usage*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units. As such, these kits may

—32—Differential Dry Bulb ControlFor differential dry bulb control the standard outdoor drybulb sensor is used in conjunction with an additional acces

—33—CONTROLCURVEABCDCONTROL POINTAPPROX. °F (°C)AT 50% RH73 (23)70 (21)67 (19)63 (17)12 14 16 18 20 22 24 26 2

—34—Minimum Position ControlThere is a minimum damper position potentiometer on theEconoMi$er IV controller. See Fig. 28. The minimum damperposition m

—35—The same equation can be used to determine the occupied ormaximum ventilation rate to the building. For example, anoutput of 3.6 volts to the actu

—36—B. Heating, Units Without EconomizerNOTE: The 581A210-300 units have 2 stages of electric heat.When the thermostat calls for heating, power is sen

—37—Remove Surface Loaded FibersSurface loaded fibers or dirt should be removed with a vac-uum cleaner. If a vacuum cleaner is not available, a soft n

—38—F. Flue Gas PassagewaysThe flue collector box and heat exchanger cells may beinspected by removing heat section access panel (Fig. 4), fluebox cov

—39—IV. EVAPORATOR FAN PERFORMANCE ADJUSTMENT(Fig. 32 and 33)Fan motor pulleys are factory set for speed shown in Table 1.To change fan speeds:1. Shut

—4—SHIPPING RAILSFig. 2 — Shipping Rail RemovalFig. 3 — Rigging DetailsUNIT SIZE581AMAX WEIGHT (lb)CENTER OF GRAVITY(in.)XYZ210 3358 63.9 34.0 30.5240

—40—VII. POWER FAILUREDampers have a spring return. In event of power failure,dampers will return to fully closed position until power isrestored. Do

—41—8. Once desired pressure is established, set unit settingfor no call for heat, turn off main gas valve, removepressure-measuring device, and repla

—42—B. High-Pressure and Low-Pressure SwitchesIf either switch trips, or if the compressor overtemperatureswitch activates, that refrigerant circuit w

—43—_ _ .A — Circuit AAHA — Adjustable Heat AnticipatorAL — Ambient LimitAUX — Auxiliary Contact_ _ .B — Circuit B_ _ .C — Circuit CC—Compressor, Cont

—44—Fig. 40 — Low Voltage Control Schematic

—45—Fig. 41 — Power Schematic

—46—Fig. 42 — Component Arrangement

—47—TROUBLESHOOTINGI. UNIT TROUBLESHOOTINGRefer to Tables 34-36 and Fig. 43.Table 34 — Cooling Service AnalysisLEGENDTXV — Thermostatic Expansion Valv

—48—Table 35 — Heating Service AnalysisTable 36 — IGC Board LED Alarm CodesLEGEND NOTES:1. There is a 3-second pause between alarm code displays.2. If

—49—Fig. 43 — IGC Control (Heating and Cooling) LEGENDNOTE: Thermostat Fan Switch in the“AUTO” position.IDM — Induced-Draft MotorIG

—5—Fig. 4 — Base Unit DimensionsNOTES:1. For outdoor use only.2. Weights shown are for 581A (low heat) unit with manual25% outdoor air option, aluminu

—50—II. ECONOMI$ER IV TROUBLESHOOTINGSee Table 37 for EconoMi$er IV logic.A functional view of the EconoMi$er IV is shown in Fig. 44.Typical settings,

—51—4. Remove the jumper across T and T1. The actuatorshould drive fully closed.5. Return EconoMi$er IV settings and wiring to normalafter completing

Copyright 2005 Bryant Heating & Cooling Systems Printed in U.S.A. CATALOG NO. 04-53581005-01

Copyright 2005 Bryant Heating & Cooling Systems CL-1 Printed in U.S.A. CATALOG NO. 04-53581005-01CUT ALONG DOTTED LINECUT ALONG DOTTED LINESTART-U

—6—Table 1 — Physical Data LEGEND *Aluminum evaporator coil and aluminum condenser coil.UNIT 581A 210 240 300NOMINAL CAPACITY (t

—7—Table 2 — Fan Motor and Drive Data — Vertical Supply/Return LEGEND581A210 240 300208/230and 460 v575 v208/230and 460 v575 v208/230and 4

—8—Table 3 — Fan Motor and Drive Data — Horizontal Supply/Return LEGEND581A210 240 300208/230and 460 v575 v208/230and 460 v575 v208/230and

—9—IV. STEP 4 — FIELD FABRICATE DUCTWORKOn vertical units, secure all ducts to roof curb and buildingstructure. Do not connect ductwork to unit. For h