Ventilation System Packages
Bard
| BAROMETRIC FRESH AIR DAMPER - BFAD | STANDARD | |
| The barometric fresh air damper is a standard feature on all models. It is installed on the inside of the service door | ||
| and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air | ||
| inlet openings and to be mixed with the conditioned air. The damper opens during blower operation and closes | ||
| when the blower is off. Adjustable blade stops allow different amounts of outside air to be introduced into the | ||
| building and can be easily locked closed if required. |
| |
Barometric Fresh Air Damper | BLANK OFF PLATE - BOP | OPTIONAL | |
A blank off plate is installed on the inside of the service door. It covers the air inlet openings which restricts any | |||
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outside air from entering into the unit. The blank off plate should be utilized in applications where outside air is not required to be mixed with the conditioned air.
Motorized Fresh Air Damper
Commercial Room Ventilator
Economizer
Energy Recovery Ventilator
MOTORIZED FRESH AIR DAMPER - MFAD | OPTIONAL |
The motorized fresh air damper is internally mounted behind the service door and allows outside ventilation air, up to 25% of the total airflow rating of the unit, to be introduced through the air inlet openings and to be mixed with the conditioned air. The two position damper can be fully open or closed. The damper blade is powered open by a 24VAC motor with spring return on power loss. The damper can be controlled by indoor blower operation or can be field connected to be managed based on building occupancy.
NOTE: The above vent systems are intake only without
COMMERCIAL ROOM VENTILATOR - CRV | OPTIONAL |
The
The commercial room ventilator (CRV) is a simple and innovative approach to improving the indoor air quality by providing fresh air intake and exhaust capability through the CRV. The damper can be easily adjusted to control the amount of fresh air supplied into the building. The CRV can be controlled by indoor blower operation or field controlled based on room occupancy. Two versions available (except on 1.5 and
ECONOMIZER - EIFM | OPTIONAL |
The
Standard Features:
•One Piece Construction - Easy to install with no mechanical linkage adjustment required.
•Exhaust Air Damper - Built in with positive closed position. Provides exhaust air capability to prevent pressurization of tight buildings.
•Actuator Motor - 24 volt, power open, spring return with built in torque limiting switch.
•Proportioning Type Control - for maximum “free cooling” economy and comfort.
•Moisture Eliminator & Prefilter - permanent, washable aluminum construction.
•Enthalpy Control - adjustable to monitor outdoor temperature and humidity.
•Minimum Position Potentiometer - adjustable to control minimum damper blade position for ventilation purposes.
•Mixed Air Sensor - to monitor outside and return air to automatically modulate damper position.
| OPTIONAL |
The
The WERV consists of a unique “rotary energy recovery cassette” that provides effective sensible and latent heat transfer capabilities during summer and winter conditions. Various control schemes are addressed including limiting ventilation during building occupancy only.
The WERV is designed to be internally mounted behind the service door in the WA, WH or WL model
Manufactured under U.S. Patent Nos. 5,485,878; 5,301,744; 5,002,116; 4,924,934; 4,875,520; 4,825,936; 6,310,330.
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Supersedes | |
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