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
  - 42SG, SH, AND SJ UNITS
  - 42Su Universal Arrangement
  - 42SM Units
- Step 2 Make Electrical Connections
  - FACTORY-INSTALLED OPTIONS
  - Standard Wiring Packages
- Step 3 Make Duct Connections
- Step 4 Frame and Finish Unit
  - EXPOSED UNIT FINISH, TOUCH-UP AND REPAINT
- Step 5 Cut Out Openings for Grilles and Thermostats
- Step 6 Make Final Preparations
  - ECM (ELECTRONICALLY COMMUTATED MOTOR) 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
- Check Drain
- Fan Motor Bearings
- Clean Fan Wheel
- Clean Electric Heater
- Electrical Wiring and Controls
- Valves and Piping
- Filters
- Drain
- Warranty
START-UP CHECKLIST FOR 42S SERIES FAN COIL AIR CONDITIONERS

Carrier Airstream 42S Series Installation Instructions

Carrier Airstream 42S Series manual cover

Pages 36

Year 2018

Language(s)

of 36

Carrier Airstream 42S Series Specification

The Carrier Airstream 42S Series is a sophisticated air conditioning solution designed for optimal climate control in various environments. It features advanced engineering to deliver efficient and reliable performance. This series is equipped with a high-efficiency scroll compressor that ensures quiet operation and energy savings, making it ideal for both residential and commercial applications. The unit supports a wide range of capacities to meet diverse cooling requirements, ensuring flexibility and adaptability to different space sizes.

The Airstream 42S Series utilizes environmentally friendly refrigerants, aligning with modern sustainability standards. Its coil design enhances heat transfer capabilities, improving overall efficiency and reducing operational costs. The system incorporates a variable speed fan motor, providing precise airflow control and maintaining consistent temperature levels. This feature contributes to enhanced comfort and energy efficiency by adjusting the fan speed according to the cooling demand.

An intuitive control interface allows for easy configuration and monitoring, offering users a seamless experience in managing their indoor climate. The series supports integration with smart building systems, enabling remote operation and diagnostics via compatible platforms. Robust construction and high-quality materials ensure durability and longevity, even in demanding conditions.

Maintenance is streamlined through accessible components and diagnostic capabilities, reducing downtime and service costs. The Carrier Airstream 42S Series embodies reliability, efficiency, and advanced technology, making it a superior choice for those seeking a high-performance air conditioning system. With its combination of innovative features and user-friendly design, the 42S Series stands out as a leader in climate control solutions.

Carrier Airstream 42S Series F.A.Q.

How do I perform routine maintenance on the Carrier Airstream 42S Series unit?

To perform routine maintenance, ensure the unit is powered off. Clean or replace air filters every three months, check for blockages in the vents, inspect electrical connections, and ensure the condensate drain line is clear. Schedule professional inspections annually.

What should I do if the Carrier Airstream 42S Series is not cooling properly?

Check if the thermostat is set correctly and ensure the air filters are clean. Inspect the outdoor unit for obstructions and ensure that the refrigerant levels are adequate. If issues persist, contact a certified technician for further diagnosis.

How can I reset the Carrier Airstream 42S Series unit after a power outage?

To reset the unit, turn off the power at the circuit breaker, wait for 5 minutes, then turn the power back on. Check the thermostat settings and adjust if necessary.

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

Common error codes include E1 for sensor failure, E2 for overheat protection, and E3 for compressor malfunction. Refer to the user manual for a detailed list and troubleshooting steps.

How often should the air filters in the Carrier Airstream 42S Series be replaced or cleaned?

Air filters should be checked monthly and cleaned or replaced every three months, depending on the environment and usage. More frequent maintenance may be necessary in dusty environments.

What is the recommended thermostat setting for optimal performance of the Carrier Airstream 42S Series unit?

For cooling, set the thermostat to 78°F (25.5°C) when you are at home and need cooling. During heating, 68°F (20°C) is recommended. Adjust according to personal comfort and energy efficiency preferences.

How can I improve the energy efficiency of my Carrier Airstream 42S Series unit?

Ensure regular maintenance, clean filters, and seal any leaks in ductwork. Consider using a programmable thermostat and shading windows to reduce heat gain. Keep the unit shaded from direct sunlight if possible.

What steps should I take if the Carrier Airstream 42S Series unit is making unusual noises?

Inspect for any loose panels or components. Check the fan blades for debris or damage. If the noise persists, it may indicate a mechanical issue, and professional service is recommended.

How do I change the fan speed on the Carrier Airstream 42S Series unit?

Fan speed can be adjusted via the unit's remote control or thermostat interface. Refer to the user manual for specific instructions based on your model's control system.

What precautions should I take before performing maintenance on the Carrier Airstream 42S Series unit?

Always turn off the power supply before starting any maintenance work. Use appropriate safety gear, including gloves and goggles. Be cautious of sharp edges and moving parts.