LE6XRT ERV
13
1.800.627.4499
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
RENEWAIRE.COM
COMPONENT DESCRIPTION
2.7 CONTROLS
RenewAire offers five different control options for the ERV, ranging from the basic factory-installed 24
VAC, 75 VA transformer with isolation relay to a Premium Integrated Microprocessor control package
with BACnet license.
See digit 21 of the Configuration Code
. For further information on RenewAire
microprocessor controls,
see the RenewAire Integrated Microprocessor Controls manual.
When using the standard factory-installed transformer with an isolation relay, the ERV can be con-
figured with a number of different control accessories that must be field-installed and wired to the
low voltage terminal strip.
See Section 2.8 Optional Control Accessories.
These accessories serve as
simple ON/OFF control devices. Example: The digital time clock will simply activate and deactivate the
unit at user-selected times.
When optional VFDs are ordered and there is no microprocessor controller, the optional CO2 sensor or
the optional IAQ sensor may be wired directly to the VFD, producing modulation of the unit. The sensors
must be wired in accordance with instructions provided with the factory-installed VFD package.
2.7.1 Integrated Microprocessor Controls
RenewAire offers an integrated microprocessor controller as an option for ERVs. It is available in either
an Enhanced or a Premium version. See the RenewAire Integrated Microprocessor Controls Manual for
further information. The controller is a multi-function device that monitors both the operation of the
ERV and air conditions in the Occupied Space. It evaluates conditions such as temperatures, air flows
and air quality and then modulates the operation of the ERV to meet owner-specified set points. The
controller can function as a stand-alone device or it can also be connected to a BMS.
RenewAire Microprocessor Controller
RenewAire Microprocessor Controller Expansion Board
Premium Microprocessor Controls Installed
