York R-407C manual Introduction, Features/Benefits, Ecological and Economical Design

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Introduction

00406VIP

FIG. 1 – PACKAGED ROOFTOP AIR CONDITIONING UNIT

FEATURES/BENEFITS

Ecological and Economical Design

•First packaged RTU with 407C optimized design

•Cooling and Heating – Superior operating perfor- mance provides lower operating costs. Smaller steps of cooling capacity provide tighter control of building environment and occupant comfort while optimizing energy efficiency.

•Indoor Air Quality (IAQ) – Outside air economiz- ers provide energy savings in free cooling mode, and can provide a healthier and more comfortable building environment by introducing fresh outside air into the building as needed. Indoor Air Quality (IAQ) requirements for building ventilation and comfort are controlled through the microprocessor control panel. Optional air flow measurement provides an accu- rate means of tracking air quality and alerting the occupants or building owner to unhealthy situations.

•High-Efficiency Motors – High-efficiency motors are available for optimum energy efficiency. All motors used on the eco2 packaged rooftop air conditioner meet U.S. EPACT 1992 minimum requirements.

in two directions conforming to ASHRAE 62n, this drain pan swiftly minimizes any condensate within the unit. Best of all, the drain pan is accessible for periodic cleaning required by IAQ standards.

•Smart ventilation – YORK maintains the leader- ship role in IAQ products with adaptive ventilation control. The OptiLogicTM controls provide continu- ous monitoring of air quality and take action by open- ing the outside air dampers, bringing in the right amount of fresh air before air impurities reach un- comfortable or even dangerous levels.

•Air flow measurement – Precise measurement of ventilation air flow is possible using an air flow measurement station which can be installed in the economizer section. Proper ventilation air flow is required to ensure sufficient fresh air is in the build- ing. A myriad of air flow measurement options are available from minimum air flow to high-accuracy full air flow capabilities. The complete system is designed as an integrated component of the OptiLogicTM control system to ensure optimum sys- tem performance.

Indoor Air Quality (IAQ)

•Double-sloped stainless steel drain pan – This double-sloped inclined stainless steel drain pan fa- cilitates removal of evaporator condensate. Sloped

•Double-wall construction – Rigid double-wall construction throughout provides ease of clean- ing and protects against insulation fiber entrain- ment in the breathable air. Double-wall construc- tion also helps improve the acoustical character- istics of the air handling unit.

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YORK INTERNATIONAL

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Contents Packaged Rooftop Air Conditioning Units 407C Optimized Through 65 TonsTable of Contents Nomenclature Basic Model NumberIntroduction FEATURES/BENEFITSEcological and Economical Design Install with Ease and Safety ServiceabilityReliable Scroll Compressor Technology Introduction Physical Data Physical DataPhysical Data Cont’d Application Data LocationRigging EconomizerBuilding Exhaust Systems Harsh Environments Condenser and Evaporator Coil ProtectionRoof Curb Selection Procedure Acoustical ConsiderationsGiven Select UnitCooling Performance Data 50 Ton Model Cooling Performance Data 50 TON ModelCooling Performance Data 50 TON Model CONT’D Cooling Performance Data 55 Ton Model Cooling Performance Data 55 TON ModelCooling Performance Data 55 TON Model CONT’D Cooling Performance Data 60 Ton Model Cooling Performance Data 60 TON ModelCooling Performance Data 60 TON Model CONT’D Cooling Performance Data 65 Ton Model Cooling Performance Data 65 TON ModelCooling Performance Data 65 TON Model CONT’D 50 Through 65 TON Supply FAN Data Fan Performance50 Through 65 TON Supply FAN Data CONT’D 50 Through 65 TON Exhaust FAN Data Component Static Pressure Drops Inches of Water Column Filters Economizer Economizer Dampers Rigid Filter Manual or Electrical Service Sizing Electrical DataLoad Definitions CompressorsSupply and Exhaust FAN Motor ODP or Tefc High EfficiencyPremium Efficiency Condenser FAN Motors / EachUnoccupied / Occupied Switching ControlsControl Sequences for ALL Units GeneralVentilation Control Sequences Exhaust Control SequencesLOW Ambient Operation Smoke Purge SequencesVAV Specific Sequences Cooling OperationStand Alone Control CV Specific SequencesCooling Operation Thermostat Control Stage 1 Y1 CallPower Wiring SINGLE-POINT Power Supply WiringSINGLE-POINT Power Supply Wiring With NON-FUSED Disconnect SINGLE-POINT Power Supply Wiring with NON-FUSED DisconnectDUAL-POINT Power Supply Wiring DUAL-POINT Power Supply WiringField Control Wiring Field Control WiringDrawing General ArrangementBottom Supply Bottom Return Left or Right Rear Return Supply General Arrangement DrawingCurb Layout Drawing Curb Layout DrawingGuide Specifications ConstructionSupply AIR System Bearings and DrivesPower Supply AIR Filtering SystemAIR Inlet System Refrigeration SystemControls Accessories and OptionsEconomizers Relief System Evaporator Coil ProtectionCondenser Coil Protection Suction and Discharge Pressure Transducers moniYork International York International Proud Sponsor Olympic Team
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