530.26-TG3YI

FIELD-INSTALLED ACCESSORIES

SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZERS Includes a slide-in /plug-in damper assembly with fully modulating spring-return motor actuator capable of introducing up to 100% outdoor air with nominal 1% leakage type dampers.

The enthalpy system contains one sensor that monitors the outdoor air and determines when the air is cool enough and dry enough to provide “free” cooling.

The rain hood is painted to match the basic unit and must be field-assembled before installing.

On units built prior to January 1995 an accessory field harness must be installed.

Power exhaust is not available as a field installed option.

DUAL INPUT ELECTRONIC ENTHALPY ECONOMIZERS Includes a slide-in /plug-in damper assembly with fully modulating spring-return motor actuator capable of introducing up to 100% outdoor air with nominal 1% leakage type dampers.

This enthalpy system contains one sensor that monitors the outdoor air and one sensor that monitors the return air. The logic module compares the two values and modulates the dampers, providing the maximum efficiency of the economizer system.

The rain hood is painted to match the basic unit and must be field-assembled before installing.

On units built prior to January 1995 an accessory field harness must be installed.

Power exhaust is not available as a field installed option.

MOTORIZED OUTDOOR AIR INTAKE DAMPER - Includes a slide-in /plug-in damper with a 2-position,spring-return motor actuator which opens to a pre-set position whenever the supply air blower is operating and drives fully closed when the blower shuts down.

On units built prior to January 1995 an accessory field harness must be installled.

Power exhaust is not available as a field installed option.

BAROMETRIC RELIEF DAMPER - This damper accessory can be used to relieve internal air pressure on units with an economizer. This accessory includes a rain hood, a bird screen and a fully assembled damper. With bottom duct connections, the damper should be mounted over the opening in the return air panel. With horizontal ductwork, the accessory should be mounted on the return air duct.

ROOF CURBS - Roof curbs, 356mm (14 in.) high, provide a water-tight seal between the unit and the finished roof. These full perimeter curbs meet the requirements of the National Roofing Contractors Association (NRCA) and are shipped knocked-down for field assembly. They’re designed to fit inside the base rails of the unit and include both a wood nailing strip and duct hanger supports.

SIDE DUCT FLANGES - Twenty-five millimeter (1 in.) flanges replace the supply and return air panels on the rear of the unit to accommodate horizontal duct connections. These flanges can also be used individually for bottom supply/horizontal return or horizontal supply/bottom return.

HIGH SPEED DRIVE - A smaller blower pulley, a larger motor pulley (including a replacement belt) increase the speed of the supply air blower for applications with a higher airflow and/or static pressure requirement.

ANTI-RECYCLE TIMERS - Two solid state timers prevent the compressors from short-cycling. Once a compressor is de-energized, it remains de-energized for approximately five minutes.

LOW AMBIENT CONTROLS TO 18°C (0°F) - An autotransformer and a thermostat maintain stable system operation by reducing the speed of the #1 condenser fan motor at low oudoor temperatures. The kit also includes a 1-phase motor to replace the unit’s standard 3-phase condenser fan motor. Standard units can operate down to 4 °C (25 °F).

TABLE OF CONTENTS

Description

1

Electrical Data - Cooling and Gas Heat

13

Field-Installed Accessories

2

Electrical Data - Units with Electric Heat

14

Ratings

3

Physical Data

14

Cooling Capacities

4

Unit Dimensions

15

Blower Performance

8

Roof Curb Dimensions

18

Blower Motor and Drive Data

12

Typical Applications

18

Static Resistances

10

Field Wiring

13

 

 

2

Unitary Products Group

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York D3CE, D3CG manual FIELD-INSTALLED Accessories, Table of Contents

D3CG, D3CE specifications

York D3CE and D3CG are innovative air-cooled chillers developed to address the growing demands for energy-efficient cooling solutions in commercial and industrial settings. These models are part of York's comprehensive range of HVAC products, showcasing advanced engineering and cutting-edge technologies designed to optimize performance while reducing operational costs.

One of the standout features of the York D3CE and D3CG series is their high efficiency. These chillers utilize a variable speed drive (VSD) technology that allows the compressor to adjust its speed according to the cooling load. This capability enhances energy efficiency, particularly in varying load conditions, and can lead to substantial energy savings compared to traditional fixed-speed chillers.

In terms of environmentally friendly refrigerants, both the D3CE and D3CG models are designed to operate with refrigerants that have low global warming potential (GWP). This aspect not only supports sustainability initiatives but also aligns with international regulations aimed at reducing greenhouse gas emissions. This makes them an appealing choice for organizations committed to minimizing their environmental impact.

The York D3CE and D3CG chillers are engineered to ensure quiet operation, making them suitable for noise-sensitive applications such as urban environments, hospitals, and educational institutions. Sound-dampening technologies are integrated into the design to minimize operational noise, thus preserving the quality of the surrounding environment.

Another significant characteristic is the advanced control system tailored for these chillers. The intuitive controls interface allows for easy monitoring and adjustment of operating parameters, enabling facilities managers to optimize performance and maintain effective cooling without extensive training.

Durability and reliability are also hallmarks of the D3CE and D3CG series. Constructed with high-quality materials and robust components, these models are engineered to withstand harsh operating conditions and deliver consistent performance over time. Regular maintenance can be managed efficiently thanks to accessible service points, ensuring that these chillers can serve their intended lifespan and beyond.

In summary, the York D3CE and D3CG series stands out in the crowded HVAC market due to their high efficiency, environmentally friendly design, quiet operation, advanced control capabilities, and rugged reliability. These features make them a prudent choice for organizations looking to enhance their cooling systems while adhering to environmental and economic sustainability goals.