Bryant 548D Bedienungsanleitung

Cancels: II 548D-90-1 II 548D-90-210/15/00CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . .

—10—LEGEND AND NOTES FOR TABLES 2A AND 2B LEGEND*Heaters are field installed only.†Used to determine minimum disconnect per NEC.**Heater capacity (kW)

—11—B. Field Control WiringInstall an approved accessory thermostat assembly accord-ing to installation instructions included with the accessory.Locat

—12—Table 3 — Heat Anticipator Settings*Heater capacity (kW) is based on heater voltage of 208 v, 240 v,480 v and 575 v. If power distribution voltage

—13—SHIPPINGSCREWSHIPPINGSCREWBLOCK-OFF PLATEFig. 12 — Outdoor-Air Hood DetailsFig. 13 — Vertical Discharge Block-Off Plate(Size 120 Only)Fig. 14 — Du

—14—4321056789UNITTOPOAT(TERMINALS ARE UP)OUTSIDE AIRSCREENMINIMUMPOSITIONOPEN31TPP1T1425SSODCTRBREV.B198818A%HUM ID ITY9070603010DCBA6065707555508580

—15—C. Optional EconoMi$erSee Fig. 22 for EconoMi$er component locations.1. To remove the existing unit filter access panel, raisethe panel and swing

—16—11. Install the complete hood assembly on the unit andsecure using the screws provided.NOTE: If optional power exhaust is being installed, complet

—17—Fig. 30 — EconoMi$er WiringOUTDOORAIRSENSORTEMPTEMPCOMOUTPWRBROWNVIOLETWHITEREDBROWNTEMPTEMPCOMOUTPWRRETURNAIRSENSORVIOLETWHITEREDOATCOMOAH-15 VRA

—18—SUPPLY AIRTEMPERATURESENSORMOUNTINGLOCATIONSUPPLY AIRTEMPERATURESENSORFig. 33 — Supply Air Sensor Mounting Location4-PINCONNECTORPLUGL1L2GREEN1122

—19—Mechanical Cooling LockoutDetermine the outdoor-air temperature at which you wantthe mechanical cooling (compressors) to be disabled. Locatethe me

—2—Fig. 1 — Roof Curb DetailsPLACE UNIT AS CLOSE TOTHIS END OF CURB AS POSSIBLEROOF CURBACCESSORY“A”UNIT SIZE548DCRRFCURB003A001′-2″ [356]090-150CRRFC

—20—5. Set movable flange at nearest keyway of pulley huband tighten setscrew. (See Table 1 for speed changefor each full turn of pulley flange).To al

—21—Table 6 — indoor-Fan Motor PerformanceLEGENDBHP — Brake Horsepower*Extensive motor and electrical testing on these units ensures that thefull hors

—22—Table 8 — Fan Performance 548D090 — Vertical Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied drive is required. (See Note 7.)2. ind

—23—Table 9 — Fan Performance 548D102 — Vertical Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied drive is required. (See Note 6.)2. ind

—24—Table 10 — Fan Performance 548D120 — Vertical Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied or alternate (as appropriate)drive is

—25—Table 11 — Fan Performance 548D090 — Horizontal Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied drive is required. (See Note 7.)2.

—26—Table 12 — Fan Performance 548D102 — Horizontal Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied drive is required. (See Note 6.)2.

—27—Table 13 — Fan Performance 548D120 — Horizontal Discharge UnitsLEGENDNOTES:1.Boldface indicates field-supplied or alternate (as appropriate)drive

—28—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

—29—NOTE: When the compressor is rotating in the wrong direc-tion, the unit makes an elevated level of noise and does notprovide heating/cooling.IX. A

—3—II. STEP 2 — FIELD FABRICATE DUCTWORKOn vertical discharge units, secure all ducts to roof curb andbuilding structure. Do not connect ductwork to u

—30—D. Cooling, Units With EconoMi$erWhen the Outdoor Air Temperature (OAT) is above theECON SP set point and the room thermostat calls forStage 1 coo

—31—B. Outdoor CoilsInspect coils monthly. Clean condenser coils annually, and asrequired by location and outdoor-air conditions.Clean 2-row coils as

—32—III. OUTDOOR FAN ADJUSTMENT (Fig. 42)1. Shut off unit power supply.2. Remove outdoor-fan assembly (grille, motor, motorcover, and fan) and loosen

—33—Fig. 44 — Cooling Charging Chart; 548D102Fig. 45 — Cooling Charging Chart; 548D120

—34—TROUBLESHOOTINGRefer to Tables 14-16 and Fig. 46 for troubleshooting information.Table 14 — Heating and Cooling TroubleshootingPROBLEM CAUSE REMED

—35—Table 15 — Durablade Economizer TroubleshootingLEGENDPROBLEM CAUSE REMEDYDamper does notopen.Indoor fan is off. 1. Check to ensure that 24 vac is

—36—Table 16 — EconoMi$er Troubleshooting LEGENDPROBLEM CAUSE REMEDYDamper does not open.Indoor Fan is Off. Check to ensure that

—37—Fig. 46 — Typical Wiring Diagram

Copyright 2000 Bryant Heating & Cooling Systems CATALOG NO. 5354-805Fig. 46 — Typical Wiring Diagram (cont)NOTES:1. If any of the original wire fu

—4—NOTES:1. Dimension in ( ) is in millimeters.2. Hook rigging shackles through holes in base rail, as shown in detail‘‘A.’’ Holes in base rails are

Copyright 2000 Bryant Heating & Cooling SystemsCL-1CATALOG NO. 5354-805CUT ALONG DOTTED LINECUT ALONG DOTTED LINESTART-UP CHECKLIST(Remove and Sto

—5—UNIT548DSTD UNITWEIGHTDURABLADEECONOMIZERWEIGHTECONOMI$ERWEIGHTCORNERWEIGHT(A)CORNERWEIGHT(B)CORNERWEIGHT(C)CORNERWEIGHT(D)“H” “J” “K”Lb Kg Lb Kg L

—6—Table 1 — Physical DataLEGEND*Indoor coil fin material/outdoor coil fin material.†Weight of 14-in. roof curb.**Requires an accessory or optional co

—7—V. STEP 5 — MAKE ELECTRICAL CONNECTIONSA. Field Power SupplyAll units except 208/230-v units are factory-wired for thevoltage shown on the unit nam

—8—Table 2A — Electrical Data (Units Without Electrical Convenience Outlet)NOTE: Legend and Notes for Electrical Data are on page 10.UNIT548DNOMINALV-

—9—Table 2B — Electrical Data (Units With Electrical Convenience Outlet)NOTE: Legend and Notes for Electrical Data are on page 10.UNIT548DNOMINALV-PH-