Contents

TABLE OF CONTENTS
SAFETY CONSIDERATIONS
INTRODUCTION
PHYSICAL DATA
PRE-INSTALLATION
- Unpack and Inspect Units
- Protect Units from Damage
- Prepare Jobsite for Unit Installation
- Identify and Prepare Units
INSTALLATION
- Step 1 Place Units in Position
  - 42C UNITS
  - 42V UNITS
  - 42D UNITS
- Step 2 Make Piping Connections
  - Valve Packages
  - DRAIN CONNECTIONS
  - WATER SUPPLY/RETURN CONNECTIONS
  - STEAM CONNECTIONS
  - DIRECT EXPANSION (DX) REFRIGERANT PIPING
  - TEST AND INSULATE
- Step 3 Make Electrical Connections
  - FACTORY-INSTALLED OPTIONS
  - Standard Wiring Packages
- Step 4 Make Duct Connections
- Step 5 Frame and Finish Unit
  - EXPOSED UNIT FINISH, TOUCH-UP AND REPAINT
- Step 6 Cut Out Openings for Grilles and Thermostats
- Step 7 Make Final Preparations
  - ECM CONTROL OPTION.
START-UP
- Cooling/Heating System
- Air System Balancing
- Water System Balancing
- Water Treatment
- Controls Operation
SERVICE
- Excessive Condensation on Unit
- To Clean Coil
- Drain
- Check Drain
- Fan Motor Bearings
- Clean Fan Wheel
- Clean Electric Heater
- Filters
- Clean or Replace Air Filters
  - THROWAWAY FILTER
  - PERMANENT FILTER
- Electrical Wiring and Controls
- Valves and Piping
- Warranty
APPENDIX A POTENTIOMETER ADJUSTMENT
APPENDIX B EVO/ECM 4-SPEED ADJUSTMENT
APPENDIX C - 42CE/42DC RETURN MODIFICATION
- Precautions
- 42CE and 42DC Units
- 42CE Rear to Bottom Return Conversion (Typical 42CEA03 Rear Return Unit Shown in Pictures Below)
- 42DC Rear to Bottom Return Conversion (Typical 42DCA03 Rear Return Unit Shown in Pictures Below)

Carrier Airstream 42V Installation Instructions

Pages 60

Year 2018

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Carrier Airstream 42V Specification

The Carrier Airstream 42V is a versatile and efficient air handling unit designed to deliver optimal indoor air quality and thermal comfort for commercial spaces. It is engineered with advanced technology to provide flexibility in configuration, making it suitable for a range of applications. The unit features a compact design that ensures ease of installation and maintenance, while its robust construction guarantees durability and longevity.

The Airstream 42V is equipped with high-efficiency fans that operate quietly and provide superior airflow regulation. The innovative fan technology ensures energy savings and reduced operating costs. The unit incorporates a variety of filtration options to meet different air quality requirements, enhancing its ability to deliver clean and fresh air to the environment.

Thermal efficiency is a key highlight of the Carrier Airstream 42V, achieved through its advanced heat exchanger design which optimizes energy transfer and minimizes losses. The unit supports a wide range of heating and cooling capacities, allowing it to adapt to specific building needs. Its control system is sophisticated yet user-friendly, offering precise management of air handling functions and seamless integration with building management systems.

The Airstream 42V's modular design supports customization, enabling users to select components that best fit their operational requirements while ensuring streamlined serviceability. The unit is built to comply with international standards on energy efficiency and environmental impact, making it a sustainable choice for modern buildings. Overall, the Carrier Airstream 42V stands out as a reliable solution that combines performance, efficiency, and adaptability to enhance indoor environments.

Carrier Airstream 42V F.A.Q.

How do I reset the Carrier Airstream 42V unit?

To reset the Carrier Airstream 42V, turn off the power supply, wait for 30 seconds, and then turn it back on. This will reset the unit's controls.

What regular maintenance is required for the Carrier Airstream 42V?

Regular maintenance includes cleaning or replacing air filters monthly, checking refrigerant levels, and inspecting the unit for any visible signs of wear or damage.

Why is my Carrier Airstream 42V not cooling properly?

Check if the air filters are clean, ensure that the thermostat is set correctly, and verify that there are no obstructions blocking the airflow. If the issue persists, contact a professional technician.

How can I improve the energy efficiency of my Carrier Airstream 42V?

Ensure the unit is properly sealed, regularly clean or replace filters, and consider using a programmable thermostat to optimize usage.

What should I do if the Carrier Airstream 42V is making unusual noises?

Unusual noises may indicate loose parts or debris in the unit. Turn off the unit and inspect for any visible issues. If the problem continues, contact a qualified technician.

How do I change the air filter on the Carrier Airstream 42V?

Locate the filter compartment, remove the old filter, and replace it with a new one following the directional arrows. Ensure the unit is off during this process.

What does a blinking LED light on my Carrier Airstream 42V indicate?

A blinking LED light typically indicates a system error or maintenance alert. Refer to the user manual for specific error codes or contact customer support.

Can I install the Carrier Airstream 42V outdoors?

The Carrier Airstream 42V is designed for indoor use. Installing it outdoors may lead to performance issues and damage. Always follow installation guidelines.

How often should I have my Carrier Airstream 42V professionally serviced?

It is recommended to have a professional technician service your unit at least once a year to ensure optimal performance and longevity.

What are the common error codes for the Carrier Airstream 42V and their meanings?

Common error codes include E1 for sensor failure and E2 for refrigerant issues. Refer to the user manual for a complete list of error codes and troubleshooting steps.