SPECIAL INSTRUCTIONS FOR CONNECTION TO FORCED AIR SYSTEM.
READ THESE INSTRUCTIONS BEFORE COMMENCING INSTALLATION.
Suncourt® Airiva™
Heat Recovery Ventilator
The Airiva deserves its own ducts; forced air system connection is a distant second choice only.
The way to avoid this complicated installation is to run the forced air system fan 24 hours per day, every day of
the year. (Set thermostat to Fan-On). Balance your system and adjust the Airiva to the recommended airflow in
CFM by closing the two manual dampers the correct amount and securely locking them in that position. You
will not need motorized dampers. Follow the instructions as they pertain to the manually adjustable dampers
only.
REMEMBER: THE FORCED AIR SYSTEM FAN MUST RUN 24/7
FAILURE TO INSTALL AN ACTIVE DAMPER SYSTEM WHEN CONNECTING TO A FORCED AIR
DUCT CAN:
• Cause excessive airflow through the Airiva.
• Reduce the efficiency from about 70% to less than 10%.
• Allow raw outside air to enter the home in great volume, resulting in much higher utility bills.
• Cause excessive water collection inside the Airiva. Normally no water will collect in the Airiva except on very
high outside humidity days (85% or higher and an indoor air-conditioned temperature of less than 80º F or 27º
C.)
• The Airiva heat exchanger core will accumulate an excessive amount of dust and dirt as a result of
excessive airflow.
Connecting the Airiva to the air supply and air return ducts of the forced air system requires a good
understanding of airflow dynamics and the following supplies and equipment:
Tools and Parts to be field supplied:
1. Motorized electric airflow dampers Suncourt part ZO106. Two required.
2. Manual airflow control dampers for 6” duct. Two required.
3. Airflow measuring equipment. i.e.
(a) Probe Mass Airflow Sensor or insert station using a moving vane, and/or
(b) Electronic or equivalent indicator calibrated in FPM or CFM, and/or
(c) Airflow Collar, and/or
(d) Pitot Tubes and Magnehelix, and/or
(e) Mechanical or Electronic Manometer.
Follow the manufacturer’s instructions and use their charts for the equipment of your choice.
4. Low voltage 18 Gauge bell wire, wire connectors and ties.
5. Calibration Control for dampers (An adjustable damper stop). Suncourt Part: CC100. Two required.
Summary of Contents for Airiva
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