Danfoss EET Series User Manual

Economy mode
This feature helps save energy by increasing the setpoint when the normal cooling demand is not required. ECO
mode is triggered when the door is closed for more than the time specied by the parameter ‘Edd’. ECO mode can
also be triggered manually via Di input. In some cases, this feature is meant to decrease the setpoint and thereby
enabling extra cooling when the power is cheaper at night time.
Figure 8: Eco mode
Danfoss
80G413
Door Open
Door Close
Temperature
Normal mode
Eco delay
(Edd)
Eto
ECO mode Normal mode
Time
Holiday mode (applicable for EETa only)
This feature allows for more energy savings during vacation/ Holiday period by o-setting the setpoint when there
is no usage for a prolonged period. If there is no door activity detected after entering ECO mode for the period that
has been congured under parameter “Holiday length”, it enters into Holiday mode. The entry into Holiday mode
happens by time passing by and is exited by door action. Holiday mode can also be triggered manually via digital
input.
Figure 9: Holiday mode
Danfoss
80G414
Door Open
Door Close
Temperature
Normal mode
Eco delay
(Edd)
Holiday Length
(HoL)
Eto
Hto
Normal modeECO mode Holiday mode
Time
Dual evaporator defrost (applicable for EETa only)
The EETa can control refrigeration cabinets with two defrost heaters and two evaporator sensors in combination.
This feature provides more exibility to the refrigeration system design and provides the most ecient defrost
handling. The controller can control defrost with both a single heater and two evaporator sensor inputs as well as
two heaters with two evaporator sensor inputs.
Dual compressor control (applicable for EETa only)
Certain refrigeration systems need more than one refrigeration circuit to handle the cooling requirements of the
cabinet while meeting other statutory requirements (for ex: Flammable Refrigerant qty). The EETa controller comes
with a feature that can handle two compressors which can be operated with time delay (Scd).
 NOTE:
The second compressor can be congured to any of the auxiliary relays and might require an external relay, if the
rated current of the second compressor is more than the auxiliary relay ratings.
Refrigeration controller, type EET series
© Danfoss | Climate Solutions | 2023.07 BC320944106159en-000301 | 8

Danfoss EET Series Specifications

General

Brand	Danfoss
Model	EET Series
Category	Controller
Language	English