The Whalen Company 2 Pipe Fan Cycle Fan Coil Component Identification

Some of the first steps in becoming an HVAC technician is learning about the parts on a unit and what they do. While this may seem like basic information, it can be vital in helping you to better understand how equipment operates so you can diagnose and repair equipment. This guide is going to cover The Whalen Company 2 pipe fan cycle fan coil component identification so you can ensure you’re ready for the next service call.

2 Pipe Fan Cycle Fan Coil Part Identification

These are the components accessed through the return grill:

• Disconnect switch – This is used to turn power to the unit on or off.
• Fan cycle relay – This is controlled through the aquastat and thermostat.
• Fan assembly – This has a harness with three plugs in it.
• Thermostat – This is mounted on the front of the fan coil and helps call for heating or cooling depending on the setting.

There is one component of note accessed from the top panel of the unit:

• Aquastat – This controls the fan cycle relay depending on the temperature of the water.