York R-410A Technical Manual

Contents

York R-410A Technical Manual Manual pdf 6 page image

505428-YTG-C-03096 Johnson Controls Unitary ProductsGuide SpecificationsSplit System Cooling Only Condensing UnitsModels: YC090-240, YD120-240 & Split System HeatPump Models: PC090-240, PD180-240General• Factory assembled, single piece, air cooled condensingunit designed for outdoor installation.• Factory wired, piped, and tested for leakage andfunctionality to assure trouble-free installation and start-up.• Rated in accordance with ARI Standard 340/360.• Manufactured in a facility registered under the ISO 9002manufacturing quality standard.• Designed and tested in accordance with ASHRAE 15Safety Code for Mechanical Refrigeration and complywith NEC.• Cooling performance rated in accordance with DOEand ARI test procedures.• CSA listed and classified to UL 1995/CAN/CSA No.236- M90 standards.• One year limited parts warranty on complete unit withan additional four year compressor warranty.Unit Operating CharacteristicsOperating Range shall be between 125° F to 40° F in coolingas standard from factory.• The capacity of the condensing unit shall meet orexceed _____ Btuh at a suction temperature of _____F. The power consumption at full load shall not exceed_____ kW.• The combination of the condensing unit and theevaporator or fan coil unit shall have a total net coolingcapacity of _____ Btuh or greater at conditions of_____ cfm entering-air temperature at the evaporator at_____ F wet bulb and _____ F dry bulb, and airentering the condensing unit at _____F.• The system shall have an EER of _____ Btuh/ Watt orgreater at standard ARI conditions.Installer Shall• Furnish York® air-cooled condensing units, heat pumpor equivalent in accordance with the performanceschedule shown on the plans, and• Unit shall be stored and handled in accordance with unitmanufacturer's instructions.• Install each unit as shown on the plans in accordancewith the manufacturer’s recommendations and allapplicable national and local codesUnit Construction• Constructed of zinc-coated, galvanized steel.• Exterior surfaces bonded and coated with bakedenamel finish by a powder paint process capable ofwithstanding a minimum of 1000 salt spray hoursaccording to ASTM B117.• Cabinet screws that comply with ASTM B117 salt spraytest for a minimum of 750 hours.• Permanently attached heavy-gage perimeter base railswith forklift slots and lifting holes.• Removable access panels to all internal components.• Separate access panel to controls.• Access panels to allow outdoor coil cleaning.Compressor(s)• Hermetic scroll type, internally protected with high-pressure relief and over temperature protection.• Two stage units operate in 50% capacity increments.• Suction gas cooled• Voltage range of ±10% of unit nameplate voltage.• Neoprene isolators minimize sound transmission andvibration.• Belly-band crankcase heaters keep refrigerant fromdiluting sump oil.• Full charge of compressor oilOutdoor Condenser Unit Coils• Draw thru configuration• Constructed with Micro-channel aluminum fins andaluminum tubing. All refrigerant tubing must share acommon header.Heat Pump Unit Outdoor Unit Coils• Draw thru configuration• Constructed with aluminum plate fins mechanicallybonded to seamless internally enhanced copper tubeswith all joints brazed.Condenser Fans• Direct driven propeller-type fans• Statically and dynamically balanced• Aluminum blades riveted to corrosion resistant steelspider brackets.• Arranged for vertical air discharge.• Equipped with PVC coated steel wire safety guards.Condenser Motors• Totally enclosed, air over cooled.• Inherent overload protection.• Permanently lubricated bearings.