Carrier CRECOMZR101A00 Installation Instructions Manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53480416-01 Printed in U.S.A. Form No. IIK-CRECON-SRT-01 Rev. C Pg 1 1-24 Replaces: NEWInstallation InstructionsPart No: CRECOMZR101A00, CRECOMZR102A00, CRECOMZR103A00,CRECOMZR104A00, CRECOMZR105A00, CRECOMZR106A00,CRECOMZR107A00, CRECOMZR108A00CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2ECONOMIZER INSTALLATION . . . . . . . . . . . . . . . . . 4INSTALLING OPTIONAL HH57LW001 SINGLEOUTSIDE AIR ENTHALPY SENSOR . . . . . . . . . . 10Enthalpy Control Sensor Configuration . . . . . . . . . 10• ENTHALPY SETTINGS (ENTHALPY OPTION)California’s Title 24 High Temperature Limit Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12ECONOMIZER SETTINGS . . . . . . . . . . . . . . . . . . . . . 14Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 14• ECONOMIZERONE• POL 224 ECONOMIZER MODULE WIRINGFunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15• FREE COOLING ECONOMIZING• DEFAULT HYSTERESIS SETTING• DAMPER MODULATION DURING FREE COOLING• LOCATION-BASED SHUTOFF SETPOINTS• COOLING STAGE OPERATION• MULTI-SPEED FAN SUPPORT• COOLING DELAY VIA INCREASING FAN SPEED• DEMAND CONTROLLED VENTILATION (DVC)• HIGH HUMIDITY LIMITATION• ANTI-FREEZE PROTECTION• MAT-BASED ANTI-FREEZE PROTECTION• OAT-BASED ANTI-FREEZE PROTECTION• EXHAUST FAN OPERATION• OCCUPANCY INPUT• PRE-OCCUPANCY PURGE• AIRFLOW COMMISSIONING• FAULT DETECTION AND DIAGNOSTICS• FIRMWARE UPDATEMOUNTING, INSTALLATION, AND WIRING . . . . . . 20Mounting the Economizer Controller BaseModule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Mounting Devices Connected To the EconomizerController . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Connecting Peripheral Devices to the EconomizerController . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22SETUP AND CONFIGURATION . . . . . . . . . . . . . . . . 24START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Cooling with EconomizerONE System . . . . . . . . . . 29Heating with EconomizerONE System . . . . . . . . . . 29APPENDIX A — TROUBLESHOOTING . . . . . . . . . . . 30APPENDIX B — SEQUENCE OF OPERATION . . . . .31APPENDIX C — MODBUS ADDRESSES . . . . . . . . . .34SAFETY CONSIDERATIONSInstallation of this accessory can be hazardous due to systempressures, electrical components, and equipment location (such asa roof or elevated structure). Only trained, qualified installers andservice technicians should install, start-up, and service thisequipment.When installing this accessory, observe precautions in theliterature, labels attached to the equipment, and any other safetyprecautions that apply:• Follow all safety codes• Wear safety glasses and work gloves• Use care in handling and installing this accessoryIt is important to recognize safety information. This is the safety-alert symbol: . When you see this symbol on the unit and ininstructions or manuals, be alert to the potential for personalinjury.Understand the signal words DANGER, WARNING, CAUTION,and NOTE. These words are used with the safety-alert symbol.DANGER identifies the most serious hazards which will result insevere personal injury or death. WARNING signifies hazardswhich could result in personal injury or death. CAUTION is usedto identify unsafe practices, which may result in minor personalinjury or product and property damage. NOTE is used to highlightsuggestions which will result in enhanced installation, reliability,or operation.CAUTIONPERSONAL INJURY HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care andwear appropriate protective clothing, safety glasses and gloveswhen handling parts and servicing air conditioning equipment.CAUTIONPERSONAL INJURY HAZARDFailure to follow this caution can result in personal injury anddamage to the unit.Cover the duct opening as a precaution so objects cannot fallinto the return duct opening. Be sure to remove the cover wheninstallation is complete.Vertical/Horizontal Low Leak/Ultra Low LeakEconomizerONE Accessory forSmall Rooftop UnitsSelect 3 to 12.5 Tons