York AFFINITY SERIES R-410A Installation Manual

Also see for AFFINITY DNX024: Technical guide

279550-YIM-A-02072 Unitary Products GroupDue to system pressure, moving parts, and electricalcomponents, installation and servicing of air conditioningequipment can be hazardous. Only qualified, trained servicepersonnel should install, repair, or service this equipment.Untrained personnel can perform basic maintenance functionsof cleaning coils and filters and replacing filters.Observe all precautions in the literature, labels, and tagsaccompanying the equipment whenever working on airconditioning equipment. Be sure to follow all other applicablesafety precautions and codes including ANSI Z223.1 or CSA-B149.1- latest edition.Wear safety glasses and work gloves. Use quenching cloth andhave a fire extinguisher available during brazing operations.InspectionAs soon as a unit is received, it should be inspected for possibledamage during transit. If damage is evident, the extent of thedamage should be noted on the carrier’s freight bill. A separaterequest for inspection by the carrier’s agent should be made inwriting.ReferenceAdditional information is available in the following referenceforms:• Technical Guide - DNX024-048, 291625• General Installation - DNX024-048, 279550Renewal PartsContact your local York® parts distribution center for authorizedreplacement parts.ApprovalsDesign certified by CSA as follows:1. For use as a cooling only unit, cooling unit withsupplemental electric heat or a forced air furnace.2. For outdoor installation only.Improper installation may create a condition where theoperation of the product could cause personal injury orproperty damage. Improper installation, adjustment,alteration, service or maintenance can cause injury orproperty damage. Refer to this manual for assistance orfor additional information, consult a qualified contractor,installer or service agency.This product must be installed in strict compliance withthe installation instructions and any applicable local,state and national codes including, but not limited tobuilding, electrical, and mechanical codes.Before performing service or maintenance operations onunit, turn off main power switch to unit. Electrical shockcould cause personal injury. Improper installation,adjustment, alteration, service or maintenance cancause injury or property damage. Refer to this manual.For assistance or additional information consult aqualified installer, service agency or the gas supplier.This system uses R-410A Refrigerant which operates athigher pressures than R-22. No other refrigerant may beused in this system. Gage sets, hoses, refrigerantcontainers and recovery systems must be designed tohandle R-410A. If you are unsure, consult the equipmentmanufacturer. Failure to use R-410A compatible servicingequipment may result in property damage or injury.If the information in this manual is not followed exactly, afire or explosion may result causing property damage,personal injury or loss of life.Do not store or use gasoline or other flammable vaporsand liquids in the vicinity of this or any other appliance.WHAT TO DO IF YOU SMELL GAS:a. Do not try to light any appliance.b. Do not touch any electrical switch; do not use anyphone in your building.c. Immediately call your gas supplier from a neighbor’sphone. Follow the gas supplier’s instructions.d. If you cannot reach your gas supplier, call the firedepartment.Installation and service must be performed by a qualifiedinstaller, service agency or the gas supplier.This product must be installed in strict compliance withthe enclosed installation instructions and any applicablelocal, state and national codes including, but not limitedto, building, electrical, and mechanical codes.The furnace and its individual shut-off valve must bedisconnected from the gas supply piping system duringany pressure testing at pressures in excess of 1/2 PSIG.Pressures greater than 1/2 PSIG will cause gas valvedamage resulting in a hazardous condition. If it issubjected to a pressure greater than 1/2 PSIG, the gasvalve must be replaced.The furnace must be isolated from the gas supply pipingsystem by closing its individual manual shut-off valveduring any pressure testing of the gas supply pipingsystem at test pressures equal to or less than 1/2 PSIG