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York ECO R-407C User Manual

York ECO R-407C
44 pages
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Packaged Rooftop
Air Conditioning Units
R-407C OPTIMIZED
50 THROUGH 65 TONS
FORM 100.50-EG1 (201)
00406VIP
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York ECO R-407C Specifications

General IconGeneral
BrandYork
ModelECO R-407C
CategoryAir Conditioner
LanguageEnglish

Summary

Nomenclature

Basic Model Number

Explains the structure and meaning of the product model number.

Introduction

Physical Data

Application Data

Installation Site and Rigging

Guidelines for unit placement, rigging, and handling for safe installation.

System Features and Components

Details economizers, coil protection, exhaust systems, and roof curbs.

Acoustical Considerations and Selection

Factors affecting unit sound levels and the process for unit selection.

Cooling Performance Data

Fan Performance

Electrical Data

Electrical Service Sizing

Procedures for calculating Minimum Circuit Ampacity (MCA) and Maximum Overcurrent Protection (MOP).

Electrical Load Definitions

Defines LOAD1, LOAD2, LOAD3, and LOAD4 for electrical service calculations.

Compressor Electrical Specifications

Provides nominal voltage, RLA, and LRA for compressor models.

Controls

Control System Overview and Modes

Describes the OptiLogic controller, user interface, and occupancy modes.

Economizer and Ventilation Strategies

Explains economizer types and ventilation control sequences.

Exhaust, Low Ambient, and Safety Functions

Covers exhaust fan control, low ambient operation, and smoke purge sequences.

VAV Specific Control Logic

Details VAV fan speed, cooling staging, and supply air temperature reset.

Power Wiring

Single-Point Power Supply Wiring

Wiring diagram and notes for a single-point power connection to the unit.

Single-Point Wiring with Non-Fused Disconnect

Wiring diagram for units with an optional non-fused disconnect switch.

Dual-Point Power Supply Wiring

Wiring diagram and notes for a dual-point power supply connection.

Field Control Wiring

Thermostat and Sensor Wiring

Wiring diagrams for thermostats, space sensors, and CO2 sensors.

Occupancy and Safety Input Wiring

Wiring for occupancy status, shutdown, and smoke purge inputs.

VAV Control Output Wiring

Wiring for VAV box control outputs, such as heat relay signals.

General Arrangement Drawing

Curb Layout Drawing

Guide Specifications

Unit Build and Component Details

Covers unit construction, casing, fans, bearings, and general design.

Air Handling and Filtration

Details supply fans, air filters, and air inlet systems.

Refrigeration System and Power

Covers compressors, coils, fans, piping, and unit power supply.

Control System and Operational Features

Details the controller, economizers, low ambient operation, and accessories.

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