40RU

Packaged Air---Handling Units

60 Hz

With PuronR (R---410A) Refrigerant

Sizes 25, 28, 30

Installation, Start---Up and

Service Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1

PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 2

Moving and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . 2–22

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Unit Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Unit Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Refrigerant and Chilled Water Piping Access . . . . . 13

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chilled Water Piping . . . . . . . . . . . . . . . . . . . . . . . . 17

Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . . . 18

Power Supply and Wiring . . . . . . . . . . . . . . . . . . . . 19

Connecting Ductwork . . . . . . . . . . . . . . . . . . . . . . . 21

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 21

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23–36

Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Fan Motor Lubrication . . . . . . . . . . . . . . . . . . . . . . . 24

Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Centering Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . 24

Fan Shaft Position Adjustment . . . . . . . . . . . . . . . . 24

Individual Fan Wheel Adjustment . . . . . . . . . . . . . . 25

Fan Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Fan Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . 25

Pulley and Drive Adjustment . . . . . . . . . . . . . . . . . . 25

Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Chilled Water Coil Freeze Protection . . . . . . . . . . . 26

Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Cleaning Cooling Coil . . . . . . . . . . . . . . . . . . . . . . . 26

Cleaning Insulation . . . . . . . . . . . . . . . . . . . . . . . . . 26

Replacing Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

START-UP CHECKLIST . . . . . . . . . . . . . . . . . . 39-40

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions package

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloths for brazing operations and have a fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and appropriate national electrical codes (in USA, ANSI/NFPA70, National Electrical Code (NEC); in Canada, CSA C22.1) for special requirements.

It is important to recognize safety information. This is the

safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, CAUTION, and NOTE. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices, which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

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Carrier 40RU manual Installation, Start---Up Service Instructions

40RU specifications

The Carrier 40RU is a highly regarded solution in the realm of commercial cooling systems, specifically designed for applications requiring reliable, long-lasting climate control. This unit stands out due to its engineering excellence, innovative features, and efficient operation.

One of the primary attributes of the Carrier 40RU is its robust construction. Engineered to withstand varying environmental conditions, this unit is built with high-quality materials that promote durability and longevity. The design incorporates corrosion-resistant finishes, which enhances its resilience, especially in outdoor installations.

The Carrier 40RU is equipped with advanced cooling technologies, including variable speed compressors and innovative coil designs. These technologies contribute to its exceptional energy efficiency, allowing the unit to optimize performance while minimizing energy consumption. The variable speed compressors adjust their output based on the current cooling demand, which not only saves energy but also reduces wear and tear on the equipment.

Additionally, the system features a sophisticated control platform that allows for ease of operation and monitoring. This control system offers numerous settings and modes, enabling users to customize their cooling experience based on specific needs. Integration with smart building systems is also possible, providing even greater flexibility and energy management capabilities.

The 40RU model includes a comprehensive filtration system that enhances indoor air quality by effectively capturing dust, allergens, and other particulates. This feature is essential for commercial spaces where maintaining a clean and healthy environment is paramount.

In terms of performance metrics, the Carrier 40RU offers impressive cooling capacities suitable for various applications, from small offices to large commercial buildings. Its noise levels are also minimized through the application of advanced acoustic insulation, ensuring a comfortable environment for occupants.

Moreover, the Carrier 40RU is designed with ease of maintenance in mind. Regular service points are readily accessible, allowing technicians to perform routine checks and repairs efficiently. This design consideration is crucial for minimizing downtime and ensuring the system operates optimally.

In summary, the Carrier 40RU combines rugged construction, energy-efficient technologies, advanced controls, and superior filtration to deliver an outstanding cooling solution for commercial applications. Its versatility, coupled with robust performance characteristics, makes it a preferred choice among HVAC professionals and building managers alike. Whether for new installations or upgrades, the 40RU ensures reliability and comfort in any environment.