Carrier Omnizone 50BV020-064 Installation, Start-up, Service And Controls Operation And Troubleshooting

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Carrier Omnizone 50BV020-064 Installation, Start-up, Service And Controls Operation And Troubleshooting Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500377-01 Printed in U.S.A. Form 50BV-8SI Pg 1 6-23 Replaces: 50BV-7SIInstallation, Start-Up, Service and ControlsOperation and TroubleshootingCONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3• UNIT STORAGEINSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . 3Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 3Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . 4• ACOUSTICAL CONSIDERATIONS• UNIT PLACEMENT AND RIGGING• SINGLE-PIECE UNITS (50BVJ)• MODULAR UNITS (50BVT,V,W)• LOW BOY UNITS• HIGH BOY UNITS• REMOVE PACKAGING• ASSEMBLING MODULAR UNITS• PROTECTIONStep 4 — Check Duct System . . . . . . . . . . . . . . . . . 27• DUCT STATIC PRESSURE PROBE AND TUBING (VAV ONLY)• DUCT HIGH-STATIC (DHS) LIMIT SWITCH (VAVONLY)Step 5 — Make Piping Connections . . . . . . . . . . . . 28• CONDENSER WATER PIPING• EVAPORATOR CONDENSATE DRAIN• HOT WATER HEATING COIL (OPTIONAL)• WATERSIDE ECONOMIZER (OPTIONAL)Step 6 — Complete Electrical Connections . . . . . . 31• POWER WIRING• CONTROL WIRING (CV ONLY)• HOT GAS REHEAT CONTROL (OPTIONAL)• ENERGY MANAGEMENT SWITCH (OPTIONAL)• ALARM OUTPUT (ALL UNITS)• CONTROL WIRING (VAV ONLY)Step 7 — Configure Unit Control Components . . . 42• UNIT PROTECTION MODULE• WATERSIDE ECONOMIZER (CV UNITS)• VARIABLE FREQUENCY DRIVE PARAMETERS (VAV UNITS)START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44• CRANKCASE HEATERS• CONFIRM THE INPUT POWER PHASE SEQUENCE• INTERNAL WIRING• RETURN-AIR FILTERS• COMPRESSOR MOUNTING• REFRIGERANT SERVICE PORTS• WATER PIPINGCV Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44• EVAPORATOR FAN• COOLINGOPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50Unit Protection Module (UPM) . . . . . . . . . . . . . . . . .50• GENERAL DESCRIPTION• FEATURES AND SAFETIESSequence of Operation, CV Units — 50BVT,V . . . .51• WATER ECONOMIZER COOLING• Y CALL (COOLING OR HEATING)SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Compressor Rotation . . . . . . . . . . . . . . . . . . . . . . . .53Fan Motor Replacement . . . . . . . . . . . . . . . . . . . . . .53• CHECK/CHANGE VFD OUTPUT CURRENT LIMITMAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Cleaning Unit Exterior . . . . . . . . . . . . . . . . . . . . . . . .53Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . .53Water-Cooled Condensers . . . . . . . . . . . . . . . . . . . .53• GRAVITY FLOW METHOD• FORCED CIRCULATION METHODFan Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . .54Fan Bearing Lubrication . . . . . . . . . . . . . . . . . . . . . .54Fan Sheaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54• ALIGNMENTEvaporator Fan Performance Adjustment . . . . . . . .55• BELT TENSION ADJUSTMENTCompressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .55START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . .59SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment can behazardous due to system pressure and electrical components. Onlytrained and qualified service personnel should install, repair, orservice air-conditioning equipment.Untrained personnel can perform basic maintenance functions ofcleaning coils and filters and replacing filters. All other operationsshould be performed by trained service personnel. When workingon air-conditioning equipment, observe precautions in theliterature, tags and labels attached to the unit, and other safetyprecautions that may apply.Follow all safety codes, including ANSI (American NationalStandards Institute) Z223.1. Wear safety glasses and work gloves.Use quenching cloth for unbrazing operations. Have fireextinguisher available for all brazing operations.Omnizone™50BV020-064Water-CooledIndoor Self-Contained Systems