246653-YTG-E-0108

TABLE OF CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

FEATURING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 MILLENNIUM SIMPLICITY® ELITE™ FEATURES . . . . . 1

OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 FEATURES AND BENEFITS . . . . . . . . . . . . . . . . . . . . . . . 5

INSTALLATION FEATURES . . . . . . . . . . . . . . . . . . . . . . 6 CONSTRUCTION FEATURES . . . . . . . . . . . . . . . . . . . . 7 LIST OF FEATURES AND BENEFITS . . . . . . . . . . . . . . . 8

STANDARD FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . 8 FACTORY INSTALLED OPTIONS . . . . . . . . . . . . . . . . . . 8 FIELD INSTALLED ACCESSORIES . . . . . . . . . . . . . . . . . 8

NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SELECTION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . 11

SELECT UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

SELECT FAN SPEED AND HORSEPOWER REQUIREMENTS OF SUPPLY AIR FAN . . . . . . . . . . . 11

SIZE OVERCURRENT PROTECTION DEVICE AND DETERMINE CIRCUIT AMPACITY . . . . . . . . . . . . . . . . 11

HOT WATER HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . 14 PHYSICAL DATA HOT WATER COIL - 1 ROW . . . . . . 14 PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . 14 PHYSICAL DATA HOT WATER COIL - 2 ROW . . . . . . 20

STEAM HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 PHYSICAL DATA STEAM COIL - 1 ROW . . . . . . . . . . . 25 PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . 25

SUPPLY AIR DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . 28

CFM, STATIC PRESSURE, AND POWER - ALTITUDE AND TEMPERATURE CORRECTIONS . . . . . . . . . . . . 44

GUIDE SPECIFICATIONS - YORK

MILLENNIUM 25, 30, & 40 TON UNITS . . . . . . . . . . . . . . 89

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

BASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 CASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

SUPPLY AIR SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . 89

SUPPLY AIR FAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 OPTIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

BEARINGS AND DRIVES . . . . . . . . . . . . . . . . . . . . . . . 89 AIR FILTERING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 90

OPTIONAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

AIR INLET SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

ECONOMIZER (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . 90 RELIEF SYSTEM (OPTIONAL) . . . . . . . . . . . . . . . . . . . . 90 BAROMETRIC RELIEF (OPTIONAL) . . . . . . . . . . . . . . . 90 EXHAUST AIR FANS (OPTIONAL) . . . . . . . . . . . . . . . . 90

ENERGY RECOVERY VENTILATION

(FIELD INSTALLED OPTION) . . . . . . . . . . . . . . . . . . . . 90

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

HEATING SYSTEM (OPTIONAL) . . . . . . . . . . . . . . . . . 90

GAS-FIRED HEATING SECTION . . . . . . . . . . . . . . . . . . 90 ELECTRIC HEATING SECTION . . . . . . . . . . . . . . . . . . . 91 HOT WATER HEATING COIL . . . . . . . . . . . . . . . . . . . . . 91 STEAM HEATING COIL . . . . . . . . . . . . . . . . . . . . . . . . . 91

REFRIGERATION SYSTEM . . . . . . . . . . . . . . . . . . . . . 91

EVAPORATOR COILS . . . . . . . . . . . . . . . . . . . . . . . . . . 91 COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 CONDENSER COILS . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 CONDENSER FANS AND MOTORS . . . . . . . . . . . . . . . 92 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . 92

HOT GAS BYPASS (OPTIONAL ON CV; STANDARD

ON VAV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . 92 COMPRESSOR CONTROL . . . . . . . . . . . . . . . . . . . . . . 92 FAN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 EQUIPMENT CONTROL FEATURES . . . . . . . . . . . . . . 93

COMFORT CONTROL FEATURES . . . . . . . . . . . . . . . 93 OPTIONAL COMMUNICATION TRANSLATOR . . . . . . 94

OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

OPTIONAL CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . 95

YORK COMMERCIAL COMFORT SYSTEM (YCCS) . . . 95

AVAILABLE ACCESSORIES . . . . . . . . . . . . . . . . . . . . . 95

PARTIAL PERIMETER ROOF CURBS . . . . . . . . . . . . . . 95 BURGLAR BARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 FIELD INSTALLED BAROMETRIC RELIEF . . . . . . . . . . 95

PROGRAMMABLE THERMOSTAT, WITH OR WITHOUT REMOTE SENSOR (REQUIRED FOR CONSTANT VOLUME UNITS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

REMOTE WALL MOUNTED TEMPERATURE

SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 DIRTY FILTER SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . 95 PROPANE CONVERSION KITS . . . . . . . . . . . . . . . . . . . 95 HIGH ALTITUDE CONVERSION KITS . . . . . . . . . . . . . . 95 ENERGY RECOVERY VENTILATORS . . . . . . . . . . . . . 95

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York Y32, Y33, Y34 manual Table of Contents

Y32, Y34, Y33 specifications

The York Y33, Y32, and Y34 series represents a significant advancement in rooftop packaged units designed for commercial HVAC applications. These models are known for their reliability, energy efficiency, and innovative features that cater to diverse climate control needs.

The York Y33 series introduces modern features aimed at maximizing comfort and reducing energy costs. Its sleek design and compact size make it a versatile option for various applications, including retail spaces, office buildings, and industrial facilities. One of the standout features of the Y33 is its variable-speed compressor technology. This allows the unit to adjust its cooling output based on real-time demand, resulting in notable energy savings compared to traditional single-speed units.

The Y32 model builds upon the strengths of the Y33, offering enhanced capabilities for large commercial spaces. It incorporates advanced controls and building management system (BMS) connectivity, enabling seamless integration into existing infrastructure. The Y32 is designed with a focus on ease of maintenance and serviceability, featuring accessible components that streamline repair processes.

The York Y34 series emphasizes environmentally friendly practices, utilizing low-GWP refrigerants that minimizes its impact on the environment. It also boasts improved heat exchangers that increase efficiency and performance. The Y34’s design minimizes noise levels, making it ideal for applications where quiet operation is paramount, such as schools and healthcare facilities.

All three models share several key technologies, including fan and motor designs that optimize airflow while reducing energy consumption. Additionally, the series features enhanced insulation, significantly improving thermal performance and reducing the risk of condensation-related issues.

In summary, the York Y33, Y32, and Y34 models represent a commitment to innovation in commercial HVAC systems. Their combination of advanced technology, energy efficiency, and user-friendly design makes them suitable for a variety of applications while promoting sustainability and operational cost-effectiveness. Investing in these units not only supports optimal indoor climate control but also aligns with the growing demand for eco-friendly solutions in today’s commercial landscape.