Danfoss EET Series User Manual

Introduction
The EET Series is the next generation of Electronic Thermostats which is a direct replacement of the Mechanical
Thermostat (and timer) and Danfoss ETC series. It comes in two variants: EETc (Enhanced Electronic Thermostat,
compact) which has one and two output model options for controlling compressor and fan/defrost heater and EETa
(Enhanced Electronic Thermostat, advanced) which has two and three output model options for controlling
compressor, fan, defrost heater or light. With the EETc and the EETa, we continue building on the electronication
legacy by bringing a high number of new features and capabilities to increase performance and exibility, while
keeping the familiar form factor and installation method.
Variants
EET Compact (EETc):
• EETc 11: 1 output, 120 V
• EETc 12: 1 output, 230 V
• EETc 21: 2 outputs, 120 V
• EETc 22: 2 outputs, 230 V
EET Advanced (EETa):
• EETa 2W: 2 outputs, wide voltage (100 – 240 V)
• EETa 3W: 3 outputs, wide voltage (100 – 240 V)
Applications
• Glass door merchandisers
• Beverage coolers
• Commercial freezers and refrigerators
• Preparation tables, under counters
• Dual compressor refrigerators (EETa only)
• Anti-freeze applications requiring auto heat control (EETa only)
• Applications requiring dual defrost control (EETa only)
Key features
Table 1: Key features
Key features
EETc
EETa
Common interface for easy transition from ETC series and Mechanical Thermostat
Yes
Yes
Moisture protected design for cold space installation
Yes
Yes
Zero cross technology for longer relay life
Yes
Yes
Compressor protection from voltage
uctuations.
Yes
Yes
Compressor protection from condenser overheat
Yes
Yes
Advanced fan control
Yes
Yes
Economy mode (Eco mode) for energy saving
Yes
Yes
Initial pull down for faster cooling at power up.
Yes
Yes
Test mode for quick checking of output function
Yes
Yes
Emergency mode in case of sensor and potentiometer failure
Yes
Yes
Parameter programmable at production site with direct programming key access
Yes
Yes
Refrigerant leakage detection
No
Yes
Wide Voltage Power supply
No
Yes
Holiday mode for energy saving
No
Yes
Dual evaporator defrost
No
Yes
Dual compressor control
No
Yes
Automatic Pull down for faster cooling
No
Yes
Anti-freeze function for low ambient conditions
No
Yes
Onsite
rmware update capability
No
Yes
Refrigeration controller, type EET series
© Danfoss | Climate Solutions | 2023.07 BC320944106159en-000301 | 4

Danfoss EET Series Specifications

General

Brand	Danfoss
Model	EET Series
Category	Controller
Language	English