Carrier CRPWREXH068A00 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. 04-53480350-01 Printed in U.S.A. Form IIK-CRPWREXH068-05 Pg 1 6-22 Replaces: IIK-CRPWREX068-04Installation InstructionsPart No. CRPWREXH068A00, CRPWREXH069A00, CRPWREXH070A00CONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Power and Control Wiring . . . . . . . . . . . . . . . . . . . . . 3Power Exhaust Installation for Vertical Return AirApplication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Power Exhaust Installation for Horizontal Return AirApplications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6POWER EXHAUST FUNCTIONAL CHECK . . . . . . . . 7For Units with EconoMi$er IV Controls(HH63AW001-W7212 Honeywell Controller) . . . . . 7For Units with W7220 Economizer . . . . . . . . . . . . . . 8• USER INTERFACE• KEYPAD• USING THE KEYPAD WITH MENUS• MENU STRUCTURE• CHECKOUT TESTSTART-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8SAFETY 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. Wear safety glasses and work gloves. Usequenching cloth for unbrazing operations. Have fire extinguisheravailable for all brazing operations.It 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.GENERALThe power exhaust accessory is for use in both vertical and hori-zontal return air duct applications.Confirm that the power exhaust package part number on the cratematches the unit size and voltage of the unit per Tables 1 and 2.Consult product literature for the economizer accessory if the unitis not already equipped.Refer to Table 3 for a complete list of parts contained in each pow-er exhaust kit.The power exhaust hood assembly has 2 power exhaust blowers.Return block-off panels, support bracket, screws, relay and wiringharness are also included in the package.IMPORTANT: Read these instructions completely beforeattempting to install this accessory.WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personal injuryand/or death.Before beginning any modification, disconnect power supplyand install lockout tag before attempting to install theaccessory. All wiring must comply with applicable nationaland local codes.CAUTIONEQUIPMENT DAMAGE HAZARDFailure to follow this caution may result in damage toequipment.When removing panels from the unit, be careful not to damagethe roof or other surfaces with the panels.IMPORTANT: The power exhaust accessory requires the use ofthe economizer. Power Exhaust will not operate without the useof an economizer.Power Exhaust AccessorySingle Package Rooftop UnitsSelect 12.5 to 27.5 Ton Units