Bryant 574B Manuale Utente

SINGLE-PACKAGEDGAS HEATING/ELECTRICCOOLING UNITS Model 574BSizes 024-060 2 to 5 Nominal TonsLow NOx Models AvailableForm No. PDS 574B.24.1 Single-Pac

—10—REQUIRED CLEARANCE FOR OPERATION AND SERVICINGin. [mm]EVAP. COIL ACCESS SIDE...36.00 [9

—11—ACCESSORY DIMENSIONSC00076Gasket aroundouter edgeInsulateddeck panGasket aroundductS/AR/AHVAC unitbase*Gasketingouter flangeFlashing fieldsupplied

—12—SELECTION PROCEDURE (WITH EXAMPLE)I DETERMINE COOLING AND HEATING REQUIREMENTSAT DESIGN CONDITIONS:Given:Required Cooling Capacity (TC)...

—13—PERFORMANCE DATASTANDARD INDOOR ECM MOTORCOOLING CAPACITIES574B024 COOLING PERFORMANCE TABLETemp (F)Outdoor AirEnteringCondenserEvaporator Air — C

—14—PERFORMANCE DATA (cont)STANDARD INDOOR ECM MOTORCOOLING CAPACITIES (cont)See Legend and Notes on page 15.574B036 COOLING PERFORMANCE TABLETemp (F)

—15—PERFORMANCE DATA (cont)STANDARD INDOOR ECM MOTORCOOLING CAPACITIES (cont)574B048 COOLING PERFORMANCE TABLETemp (F)Outdoor AirEnteringCondenserEvap

—16—FILTER SIZECFM500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 230020 X 20 X 1 0.05 0.07 0.08 0.10 0.12 0.13 0

—17—574B COOLING DRY COIL ECM AIRFLOW—SMALL CABINET574B COOLING DRY COIL ECM AIRFLOW—LARGE CABINET574B HEATING ECM AIRFLOW—SMALL CABINET574B HEATING E

—18—574B ECM AIR FLOW VS. TEMPERATURE RISE CHARTPERFORMANCE DATA (CONT)ECONOMIZER/1-IN. FILTER PRESSURE DROP (in. wg)UNIT COOLING SIZERATED GAS INPUT

—19—TYPICAL PIPING AND WIRINGINDOORTHERMOSTATDISCONNECTPER NEC*FROMPOWERSOURCERETURNAIRTOP COVERFROMGAS LINE*NEC - NATIONAL ELECTRICAL CODEROOFRETURN-

—2— Corporate thermostats include the Time Guard® II anti-shortcycle protection circuitry. If a non-corporate thermostat withoutanti-short cycle pro

—20—APPLICATION DATACondensate trap — A 2-in. condensate trap must be fieldsupplied.Ductwork — Secure downflow discharge ductwork to roofcurb. For horiz

—21—C99024ELECTRICAL DATA574B (STANDARD) ELECTRICAL DATAUNITSIZE574BV-PH-HzVOLTAGERANGECOMPRESSOROUTDOOR FANMOTORINDOOR FAN MOTOR POWER SUPPLYMin Max

—22—TYPICAL WIRING SCHEMATIC—208/230-1-60 SHOWNC01035YELBLKYELBLUYELYELBLKBRNIBLK

—23—TYPICAL WIRING SCHEMATIC—208/230-3-60 SHOWNC99077C03025

—24—OPERATING SEQUENCEHeating — On a call for heating, terminal “W” of the thermostatis energized, starting the induced-draft motor. When the hall-eff

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—27—PACKAGED GAS HEATING/ELECTRIC COOLINGUNITS CONSTANT VOLUME APPLICATIONHVAC GUIDE SPECIFICATIONSSIZE RANGE: 2 TO 5 TONS, NOMINAL COOLING40,000 TO 1

—28—SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICEUNIT MUST BE INSTALLED IN ACCORDANCEWITH INSTALLATION INSTRUCTIONSCancels: NEWForm PDS 574B.24.1©

—3— ARI* CAPACITIESCOOLING CAPACITIES AND EFFICIENCIES UNIT 574B NOMINAL TONS STANDARD CFMNET COOLING CAPACITIES (Btuh)EER @A‡SEER†SOUND RATINGS**(d

—4— ARI* CAPACITIES (cont)HEATING CAPACITIES AND EFFICIENCIES LEGENDAFUE — Annual Fuel Utilization Efficiency NOTE: Before p

—5— PHYSICAL DATA † Required filter sizes shown are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated cooling a

—6— PHYSICAL DATA (cont) † Required filter sizes shown are based on the larger of the ARI (Air Conditioning & Refrigeration Institute) rated co

—7— OPTIONS AND ACCESSORIES Factory-installed options Coil options include Tin-Plated* indoor hairpins, copper/copperand vinyl-coated construction f

—8—FILTER ACCESS DOOR(HORIZONTALAPPLICATION ONLY.)DO NOT REMOVEFROM DOWNFLOWDISCHARGE.REPLACEMENTPANELHOLE FORECONOMIZERWIRING HARDNESSDOORLATCH ANGLE

—9—BASE UNIT DIMENSIONS — 574B024-036REQ’D CLEARANCES FOR OPERATION AND SERVICING. in. (mm)Evaporator coil access side ......36(914)Power