Port Configuration and Airflow Model RNC95
RNC95 Port Specifications
The RNC95 Heat Recovery Ventilator (HRV) has been designed
to allow the installer to choose between two possible positions on
the cabinet for the INDOOR EXHAUST (return from building)
port. Illustrations in this manual show standard (side mounted)
port location. The same specifications apply to both RNC95
setups, regardless of which port position is selected.
Variable Port Location / Installation
(Model RNC95 only)
The exhaust return port collar is not factory installed. Installer
may choose either side mounted or alternate top mounted port by
simply removing one of the two knock-out plates and attaching a
port collar (supplied). To remove knock-out plate, insert a utility
knife into the knock-out slits and trace them completely to
puncture protective film underneath. Then, cut the solid tabs
between the slits, using tin snips or side cutters, and remove the
knock-out plate. If any protective film still blocks the opening,
remove it now.
In order to make the RNC95 as space efficient as possible, the
INDOOR supply and return ports are converted from round to oval
shape. Overall size of the port remains the same. Simply bend a
standard duct fitting to the correct shape, and attach to the oval
port using the same method as for a round port.
RNC95 Air Flow
Stale air enters the FRONT RIGHT side port. The air will pass
down the front half of the core, then up the back half of the core
and out the RIGHT REAR port.
Fresh outdoor air will enter the LEFT REAR port and pass down
the back half of the core. It will then pass up the front half of the
core, and out the LEFT FRONT port. This unique configuration
allows the air to actually travel through the core twice, making the
RNC95 almost as efficient as a double core unit.
Variable Port Location
SIDE MOUNTED PORT TOP MOUNTED PORT
standard location alternate location
Round port bent to oval
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