Greenheck ERCH - Energy Recovery Unit with Packaged DX (468151) - Manual (Page 19)

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Energy Recovery Unit with Packaged DX
Vapor Tight Lights
Vapor tight lights provide light to each of the compartments
in the energy recovery unit . The lights are wired to a
junction box mounted on the outside of the unit . The switch
to turn the lights on is located in the unit control center .
The switch requires a separate power source to allow for
power to the lights when the unit main disconnect is off for
servicing .
OPTIONAL ACCESSORIES
Service Outlet
120 Vac GFCI service outlet ships loose for field installation .
Requires separate power source so power is available when
unit main disconnect is turned off for servicing .
CO2 Sensor
This accessory is often used to provide a modulating control signal to a variable frequency drive to raise and
lower airflow in relationship to the CO2 levels in the space . This strategy is often referred to as Demand Control
Ventilation and provides further energy savings to the system . Follow instructions supplied with sensor for
installation and wiring details .