What is a Unitary Controller in an HVAC system?
A unitary controller is a device that controls only one zone in a building. In an HVAC system, a unitary controller may be used to control the temperature, humidity, and airflow in one zone. By contrast, a central controller may be used to control the entire HVAC system.
A unitary controller: advantages and disadvantages
Advantages:
- A unitary controller can be used to control the temperature, humidity, and airflow in one zone.
- A unitary controller is less expensive than a central controller.
- A unitary controller is easier to install than a central controller.
Disadvantages:
- A unitary controller can only control one zone.
- If the unitary controller fails, the entire HVAC system will fail.
A unitary HVAC system
A unitary HVAC system is not as energy efficient as a central HVAC system. A unitary HVAC system does not provide as much comfort as a central HVAC system.
Unitary air conditioning system
- A unitary air conditioning system is a single self-contained air conditioner.
- A unitary air conditioning system is less expensive than a central air conditioning system.
- A unitary air conditioning system is easier to install than a central air conditioning system.
Difference between unitary and central air conditioning system
The main difference between a unitary and central air conditioning system is that a unitary air conditioning system can only cool one room while a central air conditioning system can cool multiple rooms. Central air conditioning systems are more expensive and more difficult to install than unitary air conditioners. Central air conditioning systems are more energy-efficient than unitary air conditioners.
Related Links
ECC Building Controls: Unitary Controller
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