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Field Controls ventCool Instructions Manual

Automatic ventilation cooling system
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AUTOMATIC VENTILATION COOLING SYSTEM
The Field Controls Healthy Home System™ ventCool™ is designed to be installed as part of the central HVAC forced-air duct system of
a home or other suitable building, in areas where outdoor conditions may exist to cool the building with outdoor air, such as California
climate zones 8 through 14.
California Energy Code (CEC) Title 24 provides large building energy reduction credits for Central Fan Integrated Ventilation Cooling
Systems (see Title 24 Residential Compliance Manual section regarding HVAC Requirements, Alternate Systems). Similar in cost and
function to a Whole House Fan, the Healthy Home System™ Automated Ventilation Cooling System monitors indoor and outdoor
conditions day and night, and automatically provides 100% outdoor air ventilation for cooling whenever outdoor conditions allow.
ITEMS INCLUDED IN KIT:
3- ventCool™ Ventilation Cooling System Dampers of either 14", 16", 18", or 20" diameter
1- Integrated Ventilation Relay Control (IVRC) Damper Control Module
3- 15 foot long Damper Cables with modular connectors
1- TrioMAC8-2025 ™ Media Air Cleaner
1- Venstar® T7850 Programmable Smart Thermostat with WiFi, touchscreen, and ventilation
cooling function
1- Venstar® ACC-TSEN Outdoor Temperature Sensor
1- 50 VA, 24 Volt Transformer, junction box mounted
OPTIONAL COMPONENTS:
Healthy Home System™ Components for optional Fresh Air Mechanical Ventilation:
• HHSC+ Ventilation Control
• FAD Fresh Air Damper
• Relief Duct Termination/screened cap
T Sensor temperature-sensing damper controller
COMPONENTS NOT INCLUDED:
•Outdoor Air Intake Ventilation Cooling Termination(s)
•Ductwork, fi ttings, 24V wiring & associated hardware
•Inlet termination for optional Fresh Air Mechanical Ventilation
•Air Handler and other HVAC system components
READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY BEFORE PROCEEDING WITH THE INSTALLATION.
This device MUST be installed by a qualifi ed agency in accordance with the manufacturer's installation instructions. The defi nition of
a qualifi ed agency is: any individual, fi rm, corporation or company which either in person or through a representative is engaged
in, and is responsible for, the installation and operation of HVAC appliances, who is experienced in such work, familiar with all the
precautions required, and has complied with all the requirements of the authority having jurisdiction.
Installed By:
Model: ventCool™
Please retain these instructions after installation.
Phone:
www.fi eldcontrols.com
Installation Date:

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Summary of Contents for Field Controls ventCool

  • Page 1 Model: ventCool™ The Field Controls Healthy Home System™ ventCool™ is designed to be installed as part of the central HVAC forced-air duct system of a home or other suitable building, in areas where outdoor conditions may exist to cool the building with outdoor air, such as California climate zones 8 through 14.

  • Page 2: Description Of Operation

    (IVRC), and smart thermostat with outdoor air temperature sensing and free cooling mode capabilities. All outdoor air coming into the building must be fi ltered by a media air cleaner such as the Field Controls Trio™, which when installed as shown serves as the HVAC system fi lter for extended dust and particulate removal.
  • Page 3 Mechanical fresh air ventilation may be required by code, for the purpose of providing adequate fresh air ventilation throughout the year. The Field Controls ventCool™ is designed to be fully compatible with the Field Controls Healthy Home System™ HHSC+ ventilation controller when installed as directed with a dedicated FAD fresh air damper.

  • Page 4: Installation

    The Ventilation Cooling outdoor air intake portion of the ventCool™ system essentially becomes a substitute for the return trunk duct or plenum when it is activated. The recommended design velocity in such ductwork is 600 feet/minute or less The recommended design velocity in such ductwork is 600 feet/minute or less.

  • Page 5: Electrical Connections

    Ventilation Cooling, Return, and Relief Dampers: ventCool™ Ventilation Cooling, Return, and Relief Dampers: All three dampers are identical in size and each may be used interchangeably as shown on the system diagram. The dampers may be installed vertically, horizontally, or at an angle.
  • Page 6 IVRC damper control module terminals CX and RX (IVRC terminals 1 & 2). NOTE: NOTE: 120V power must be maintained to the transformer at all times for proper operation of the ventCool™ system. IMPORTANT: IMPORTANT: The IVRC terminals CX and RX terminals (1 &...
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  • Page 11: System Setup Procedure

    8. Select “Wired Sensor Use”, and select the “Outdoor Sensor” setting”. 9. Set remaining thermostat program and system parameters according to preference and HVAC system type. 10. Turn on power to the ventCool™ system 24V transformer. Depending on existing damper positions, some dampers may open or close.
  • Page 12 Exit the Venstar thermostat “Test Outputs” menu, select “Free Cooling”, and enable Free Cooling Mode. The ventCool™ ventCool™ system should become de-activated when exiting the “Test Outputs” menu. IMPORTANT: Make sure to re-enable “Free Cooling”! IMPORTANT: Make sure to re-enable “Free Cooling”!

  • Page 13: Troubleshooting

    2. Select the “Test Outputs” menu, and press the Cooling 2nd Stage button. The Y2 and G indicators should illuminate, and Y2 and G terminals should be energized. 3. Verify that the ventCool™ ventCool™ system becomes or remains de-activated, as described in this manual’s System Setup System Setup section.
  • Page 14 No indicator lamps illuminated on IVRC: Check for nominal 24VAC on the CX and RX terminals (1 & 2) on the IVRC. If there is voltage present and no damper output indicators are illuminated, the IVRC must be replaced. If there is no voltage on CX and RX, check the ventCool™ ventCool™ 24VAC transformer for input power. If the transformer has power, check for 24VAC output from the transformer.

  • Page 15: Specifications

    NOTE NOTE: The thermostat will not activate Automatic Ventilation Cooling when outdoor temperatures are above the “Useable Outdoor Temperature” setting. Also, if a cooling call was present while the outdoor temperature was above the “Useable Outdoor Temperature” setting, mechanical air conditioning will not transition into Ventilation (“Free”) Cooling until outdoor temperatures dropdown below the setpoint, until the indoor temperature setting is reached by means of mechanical cooling, and the thermostat is satisfi ed (mechanical cooling shuts off ).
  • Page 16 WARRANTY WARRANTY For warranty information about this or any Field Controls product, visit www.fi eldcontrols.com Phone: 252.522.3031 • Fax: 252.522.0214 www.fieldcontrols.com © Field Controls, LLC P/N 46696100, Rev B 03/16...

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