38HDL018-060 Light Commercial Condensing Units

Installation, Start-Up and

Service Instructions

CONTENTS

Page

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

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Step 1 Ð Complete Pre-Installation

Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

·UNPACK UNIT

·INSPECT SHIPMENT

·CONSIDER SYSTEM REQUIREMENTS

Step 2 Ð Rig and Mount Unit . . . . . . . . . . . . . . . . . 3

·MOUNTING ON GROUND

·MOUNTING ON ROOF

·RIGGING

Step 3 Ð Complete Refrigerant Piping

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

·CHECK ACCURATER CONTROL

·MAKE PIPING SWEAT CONNECTIONS

·PROVIDE SAFETY RELIEF

Step 4 Ð Make Electrical Connections . . . . . . . . 4

·POWER WIRING

·CONTROL CIRCUIT WIRING

·CONNECTIONS TO DUCT-FREE FAN COIL UNITS

Step 5 Ð Accessory Installation . . . . . . . . . . . . . . 4

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 11

SAFETY CONSIDERATIONS

Install and servicing air-conditioning equipment can be haz- ardous due to system pressure and electrical components. Only trained and quali®ed service personnel should install or serv- ice air-conditioning equipment

Untrained personnel may perform basic maintenance such as cleaning and replacing ®lters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe safety precautions in literature, and on tags and labels attached to unit.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have a ®re extinguisher available. Read these instructions thor- oughly. Consult local building codes and National Electrical Code (NEC, U.S.A. Standard) for special installation requirements.

Fig. 1 Ð 38HDL Condensing Unit

Before installing or servicing system, always turn off main power to system. There may be more than one dis- connect switch. Turn off accessory heater power if applicable. Electrical shock can cause personal injury.

Step 1 Ð Complete Pre-Installation Checks

UNPACK UNIT Ð Move unit to ®nal location. Remove car- ton from unit, being careful not to damage service valves or grilles.

INSPECT SHIPMENT Ð File claim with shipping com- pany if shipment is damaged or incomplete. Check unit name- plate to ensure unit matches job requirements.

CONSIDER SYSTEM REQUIREMENTS Ð Consult local building codes and NEC for special installation requirements.

Allow sufficient space for air¯ow clearance, wiring, refrigerant piping, and servicing unit. See Fig. 1 and 2. Unit can be mounted on a level pad directly on base legs or mounted on raised pads at support points. See Fig. 2 for cen- ter of gravity.

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book

1

4

 

PC 111

Catalog No. 563-899

Printed in U.S.A.

Form 38HDL-1SI

Pg 1

9-98

Replaces: New

Tab

3a

2a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Carrier 38HDL018-060 specifications Contents, Safety Considerations

38HDL018-060 specifications

The Carrier 38HDL018-060 is a prominent model in the world of commercial HVAC solutions, offering exceptional performance, efficiency, and reliability for a variety of applications, including offices, retail spaces, and industrial environments. With a range of capacities from 1.5 tons to 5 tons, the 38HDL series serves diverse heating and cooling needs, making it a versatile option for many building types.

One of the standout features of the Carrier 38HDL018-060 is its advanced Scroll compressor technology. This technology is known for its energy efficiency and quieter operation compared to traditional reciprocating compressors. By optimizing the refrigeration cycle, the Scroll compressor enhances the overall system performance, providing consistent temperature control while minimizing energy consumption.

The unit also incorporates a vertical air discharge design, allowing for flexible installation and improved airflow distribution. This design minimizes air stratification, ensuring that conditioned air reaches every corner of the space effectively. Furthermore, the 38HDL series is equipped with a reliable multi-speed fan that adapts its operation based on the specific cooling or heating demand, further optimizing energy use and maintaining indoor comfort levels.

In terms of technology, the Carrier 38HDL018-060 features a microprocessor-based control system. This intelligent control allows for precise temperature management and system diagnostics, enabling easier maintenance and ensuring the longevity of the unit. Additionally, the unit can be integrated with Carrier’s advanced building automation systems for streamlined control across larger facilities, further enhancing operational efficiency.

The 38HDL series is also designed with durability in mind. It features a rugged aluminum cabinet that stands up to harsh environmental conditions while providing excellent insulation to improve overall efficiency. The corrosion-resistant coatings contribute to the longevity of the finned coil and other critical components, ensuring reliable performance over time.

Overall, the Carrier 38HDL018-060 exemplifies modern HVAC technology, blending efficiency, durability, and advanced control features to create a solution that meets the demands of today’s commercial buildings. Whether for new construction or retrofitting an existing system, the 38HDL series offers the reliability and performance required to create a comfortable indoor environment.