Carrier 50ZP036 Installation, Start-up And Service Instructions Manual

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50ZP036-0603-Phase Single-Packaged Air ConditionersVisit "vv'vv'vv.12_lrri_r.L"oininstallation, Start-Up and Service instructionsHEATING & COOLINGNOTE: Read the entire instruction manual belk_re starting theinstallation.TABLE OF CONTENTSSAFETY CONSIDERATIONS ..................................................... lINTRODUCTION .......................................................................... 2RECEIVING AND INSTALLATION .......................................... 2Check Equipment ...................................................................... 2IDENTIFY UNIT ................................................................ 2INSPECT SHIPMENT ........................................................ 2Provide Unit Support ................................................................ 2SLAB MOUNT ................................................................... 2Provide Clearances .................................................................... 2Place Unit .................................................................................. 2Select and Install Ductwork ..................................................... 2INSTALL FLANGES FOR DUCTWORK CONNEC-TIONS (50ZPI)6t) ONLY) ................................................... 2CONVERTING HORIZONTAL DISCHARGE UNITS TODOWNFLOW (VERTICAL) DISCHARGE ...................... 6Provide lk_rCondensate Disposal ............................................. 6Install Electrical Connections ................................................... 7HIGH-VOLTAGE CONNECTIONS .................................. 7ROUTING POWER LEADS INTO UNIT ........................ 8CONNECTING GROUND LEAD TO UNIT GROUND.8ROUTING CONTROL POWER WIRES .......................... 8ACCESSORY ELECTRIC HEAT WIRING ..................... 8SPECIAL PROCEDURES FOR 208-V OPERATION .....8PRE-START-UP ............................................................................ 9START-UP ..................................................................................... 9Check lor Refl'igerant Leaks .................................................... 9LOCATE AND REPAIR REFRIGERANT LEAKS ANDCHARGE THE UNIT AS FOLLOWS: ............................. 9Start-Up Cooling Section and Make Adjustments ................ 10CHECKING COOLING CONTROL OPERATION ....... 10Refrigerant Charge .................................................................. 10NO CHARGE .................................................................... 10LOWCHARGE COOLING ............................................... 10TO USE COOLING CHARGING CHARTS .................. 10Indoor Airflow and Airflow Adjustn-ients .............................. 10FOR 208/230-V ................................................................. 11FOR 460-V MOTORS ...................................................... 11Unit Controls ........................................................................... l lHIGH-PRESSURE RELIEF VALVE ............................... 11COMPRESSOR OVERLOAD .......................................... 11Sequence of Operation ............................................................ 11FAN OPERATION ............................................................ 11COOLING .......................................................................... 11HEATING .......................................................................... 11MAINTENANCE ......................................................................... 12Air Filter .................................................................................. 16Unit Top Removal (Condenser-Coil Side) ............................ 16C00155Fig. liUnit 50ZPEvaporator Blower and Motor ................................................ 16Condenser Coil, Evaporator Coil, and Condensate Drain Pan. 16Condenser Fan ........................................................................ 17Electrical Controls and Wiring ............................................... 18Reli"igerant Circuit .................................................................. 18Evaporator Airflow ................................................................. 18Metering Devices .................................................................... 18Liquid Line Strainer ................................................................ 18TROUBLESHOOTING ............................................................... 18START-UP CHECKLIST ............................................................ 18NOTE TO 1NSTALLER--Belk_re installation, READ THESEINSTRUCTIONS CAREFULLY AND COMPLETELY. Also,make sure the User's Manual and Replacement Guide are leli withthe unit after installation.SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment can behazardous due to systen-i pressure and electrical components. Onlytrained and qualified workers should install, repair, or serviceair-conditioning equipment.Untrained workers can perlkmn basic maintenance l_.lnctions ofcleaning coils and lilters. All other operations should be perlbm_edby trained service people. When working on air-conditioningequipment, pay attention to precautions in the literature, tags, andlabels attached to the unit, and other salk:ty precautions that mayapply.Follow all sallcty codes. Wear sal_:ty glasses and work gloves. Usequenching cloth lk_r unbrazing operations. Have flrc extinguisheravailable Ik_rall brazing operations.Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 101 Printed in U.S.A. Catalog No. 50ZP-5SI Pg 1 2-06 Replaces: New