Greenheck Fan Energy Recovery Ventilator ERV - Manual (Page 7)

7
Dirty Filter Sensors
Filters require scheduled maintenance to improve
air quality and system efficiency. A dirty filter sensor
allows you to minimize maintenance frequency to only
when it is needed. The dirty filter kit senses when
the filters are dirty and sends a signal to our built-in
control center. Greenheck offers an optional remote
control panel and a “clogged filter” light to tie the
signal into.
Rotation Sensor
Adding a wheel rotation sensor to the unit assures
you that the energy wheel is operating properly. The
sensor sends a signal to the control center of the
unit in the rare event that the wheel stops rotating.
Greenheck offers an optional remote control panel and
a “wheel rotation” light to tie the signal into.
Factory Mounted Sensors
Amp Draw, Pressure, Temperature: Greenheck offers
factory mounted sensors that are wired back to the
control center, so you can get the information you
need to know, exactly where you need to measure
it. These sensors can be used to simply monitor unit
operation or to actively control the unit with controls
by others.
Amp Monitor
Blower amp draw can be monitored
through the use of an amperage
sensor. These sensors allow for
either an analog or digital output
based on your system needs.
Wheel Pressure Sensors
In each airstream, a pressure
sensor is available to monitor
wheel operation. Wheel pressure
can be used to indicate a buildup
of frost during the cold winter
months or can be used as a CFM
gauge as the energy wheel is a
laminar flow device (i.e. a specific
pressure equals a specific CFM).
Temperature Sensors
Wheel performance can be
determined with factory mounted
temperature sensors. Every
compartment can be monitored to
know how your unit is operating.
CO
2
Sensor
A good indicator for building health is
carbon dioxide (CO
2
). Greenheck offers a
CO
2
sensor, that can be used to engage
the unit based on CO
2
levels, or it can
increase or decrease airflows through
the use of a variable frequency drive
(VFD) on the blowers. The CO
2 sensor
can be unit mounted or space mounted
depending on your application.
Service Outlet
While performing minimal maintenance on your ERV, a
service outlet can provide power when and where it’s
needed. Shipped loose, the outlet can be mounted in
the correct location for your building.
Vapor-Tight Lights
Access doors provide natural lighting during the day,
but there may be times when more light is needed
to see properly inside the unit. To increase bulb life
and to also protect the bulb, Greenheck offers a
vapor-tight light.
Blower VFD’s
Variable frequency drives are a great
tool to control airflow to the space
or to maintain duct pressures. With
this optional feature, two VFD’s are
utilized, one per fan for independent
and flexible control.
Accessories