Data sheet
Refrigeration controller
EETc 11, 12, 21, 22 and EETa 2W, 3W
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 electronification legacy by bringing a
high number of new features and capabilities
to increase performance and flexibility, while
keeping the familiar form factor and installation
method.
Features • Moisture protected design for installability
inside the cold space area
• Similar dimensions and installation method
as ETC series and Mech Thermostat for easy
transition (applicable for EETc)
• Wide Voltage Power Support (110 – 230 V)
(applicable for EETa)
• Configurable auxiliary inputs and outputs to
control fan, defrost heater and light
• Alarms, fan & light control, compressor
management using door sensor
• Supports multiple sensor types: NTC 5K, NTC
10K, PTC 990
• Zero cross technology for longer relay life
• Mass programmable at production site with
direct programming key access
• Compressor protection from voltage
fluctuations, spikes and surges
• Advanced fan control
• Multiple defrost methods to choose from
• Condenser overheat protection
• Economy mode (Eco mode) to give more
energy saving potential during night and long
hours of no use. EETa also supports Holiday
mode, which allows longer than a day period
of auto temperature offset
• Dual defrost control (only EETa)
• Quick factory test mode to check if inputs/
outputs are functioning
• High and low temperature alarm indication
• Safety/Emergency mode in case of sensor and
potentiometer failure
© Danfoss | DCS (vt) | 2020.10
AI355927147717en-000102
Data sheet | Refrigeration controller, EETc 11, 12, 21, 22 and EETa 2W, 3W
Applications
Variants
Facts
Applications supported by the EETc:
• Glass door merchandisers
• Beverage coolers
• Commercial freezers and refrigerators
• Preparation tables
Applications supported by the EETa:
• Glass door merchandisers
• Commercial freezers and refrigerators
• Preparation tables
• Dual compressor refrigerators
• Anti-freeze applications requiring auto heat
control
• Applications requiring dual defrost control
EETc:
• EETc 11: 1 output, 120 V
• EETc 12: 1 output, 230 V
EETa:
• EETa 2W: 2 outputs, wide voltage (120 – 230 V)
• EETa 3W: 3 outputs, wide voltage (120 – 230 V)
• EETc 21: 2 outputs, 120 V
• EETc 22: 2 outputs, 230 V
Variant differences
HW differences between EETc and EETa:
Features EETc EE Ta
Sensor inputs 2
Wide voltage power module No
Visible LED indication Power
Temperature sensors supported NTC 5K, NTC 10K
Output options 1 & 2 Relay
3
Yes
Power, Error
NTC 5K, NTC 10K, PTC
2 & 3 Relay
SW differences between EETc and EETa:
Features EE Tc EE Ta
Onsite Parameter Programming/
Production Programming capability
Onsite firmware update capability No
Eco mode Yes
Holiday mode No
Light Control No
Dual defrost No
Dual compressor control No
Anti-freeze function No
Koolkey with external power
Koolkey with powered controller
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2 | AI354138789910en-000101
© Danfoss | DCS (vt) | 2020.10
Data sheet | Refrigeration controller, EETc 11, 12, 21, 22 and EETa 2W, 3W
Technical Specifications
Electronic temperature control, type EETc 11, 12, 21 and 22:
Product specification EETc 11, EETc 21 EETc 12, EETc 22
Purpose of control Operating temperature sensing control suitable for incorporation into
Construction of control Incorporated control
Voltage 120 V, 50/60 Hz 230 V, 50/60 Hz
Typ es/Mo dels EETc 11 (One relay 120 V)
Power supply 120 V AC +10%/-15%, 50/60 Hz 230 V AC +10%/-15%, 50/60 Hz
Relay ratings DO1 (Compressor relay)
Product dimension Length: 79 mm
Temperature control Potentiometer with Spindle
Number of inputs 2 (1 Analogue + 1 Analogue / Digital)
Supported sensor types NTC 5K (Beta value 3980 @ 25/100 °C)
Measuring accurancy ±1 K below -35 °C
Measurement range -40 – +80 °C
Number of outputs One relay version: Compressor relay
Input connector type Plug & Header type
Output connector type Tab connector
Communication TTL (MODBUS)
Operating temperature range -25 – +55 °C
Humidity range 93% RH, Condensing
Installation Spindle mounted
Relay switching Zero cross technology (All relays)
Overvoltage category II - 230 V supply version - (ENEC, UL recognized)
Surge Protection 4 KV
Approvals
(In process)
commercial air-conditioning and refrigeration applications
EETc 21 (Two relay 120 V)
16 A (16 FLA / 72 LRA)
DO2 (Defrost heater / Evaporator fan)
5 A (2 FLA / 12 LRA)
Width: 37.5 mm
Height: 30.5 mm
NTC 10K (Beta Value 3980 @ 25/100 °C)
±0.5 K between -35 – +25 °C
±1 K above 25 °C
Two relay version: Compressor relay + Aux relay (Defrost heater / Evaporator
fan)
Cold Space Installability
III - 115 V supply version - (UL recognized)
R290/R600a end-use applications employing in accordance to
EN/IEC 60335-2-24, annex CC and EN/IEC 60335-2-89, annex BB
Glow wire according to EN/IEC 60335-1
IEC/EN 60730
UL60730
NSF
CQC
EAC
Ukraine
EETc 12 (One relay 230 V)
EETc 22 (Two relay 230 V)
DO1 (Compressor relay)
16 A (10 FLA / 60 LRA)
DO2 (Defrost heater / Evaporator fan)
5 A ( 2 FLA / 12 LRA)
© Danfoss | DCS (vt) | 2020.10
AI355927147717en-000102
Data sheet | Refrigeration controller, EETc 11, 12, 21, 22 and EETa 2W, 3W
Electronic temperature control, type EETa 2W and EETa 3W:
Product specification EETa 2W EETa 3W
Purpose of control Operating temperature sensing control suitable for incorporation into
Construction of control Incorporated control
Power supply 100 – 240 V AC +/- 10%, 50/60 Hz, Non isolated
Relay ratings DO1: 16 A (16 FLA / 72LRA)
Product dimension Length: 83.5 mm
Temperature control Potentiometer with spindle
Number of inputs 3 (1 Analogue, 2 Analogue / Digital)
Supported sensor types NTC 5K (Beta value 3980 @ 25/100 °C)
Measuring accurancy ±1 K below -35 °C
Measurement range NTC 5K: -40 – +80 °C
Output configuration DO1: Compressor
Input connector type Plug and header type
Output connector type Tab Connector
Communication TTL (MODBUS)
Operating temperature range -25 – +50 °C
Humidity range 93% RH, Condensing
Installation Spindle mounted
Relay switching Zero cross technology (all relays)
Surge protection 4 KV
Approvals
(In process)
commercial air-conditioning and refrigeration applications
DO2: 8A (2FLA /12LRA)
Width: 43.5 mm
Height: 30.5 mm
NTC 10K (Beta value 3980 @25/100 °C)
PTC 990 ohms @ 25 °C (EKS111)
±0.5 K between -35 – +25 °C
±1 K above +25 °C
NTC 10K: -40 – +80 °C
PTC 990: -55 – +100 °C
DO2: Def. Heater/Fan/Light/Second
comp/Alarm
Cold space installability
R290/R600a end-use applications employing in accordance to
EN/IEC 60335-2-24, annex CC and EN/IEC 60335-2-89, annex BB
Glow wire according to EN/IEC 60335-1
IEC/EN 60730
UL60730
NSF
CQC
EAC
Ukraine
DO1: 16 A (16 FLA / 72LRA)
DO2: 8 A (2FLA /12LRA)
DO3: 5 A (2FLA /12 LRA)
DO1: Compressor
DO2 and DO3: Def. Heater/Fan/Light/
Second comp/Alarm
4 | AI354138789910en-000101
© Danfoss | DCS (vt) | 2020.10
Data sheet | Refrigeration controller, EETc 11, 12, 21, 22 and EETa 2W, 3W
s
80G404
s
80G405
s
s
7
Connections
EETc11, EETc12
EETc21, EETc22
Warnings:
1. Do not fit power supply wiring and signal
wiring (probes/sensors and digital inputs) in
the same raceways or ducts.
2. Separate as much as possible the probe and
digital input signal cables from the cables
carrying inductive loads and power cables to
avoid possible electromagnetic disturbance.
1
2
3
DO1
4
1
DO2
2
3
DO1
4
120 / 230 V AC120 / 230 V AC
N
L
N
L
Open
Compressor
Def. Heater/
Fan
Compressor
3. Suitably fasten the output connection cables
to avoid any unintentional contact.
4. The electrical connections must only be
completed by a qualified electrician.
5. The customer must only use the product in
the manner described in the documentation
relating to the installation and product
application.
S1
S2
COMCOM
S1
S2
Cab air sensor
Aux. Input
Evap Sensor
Condensor Sensor
Door Switch
External input for pull down
External input for ECO
Cab air sensor
Aux. Input
Evap Sensor
Condensor Sensor
Door Switch
External input for pull down
External input for ECO
Danfos
Danfos
EETa 2W
EETa 3W
80G406
N
Def. Heater/
Fan/Light/Alarm
100 – 240 V AC
L
1
DO2
2
3
DO1
4
Compressor
N
Def. Heater/
Fan/Light/Alarm
L
Def. Heater/
Fan/Light/Alarm
100 – 240 V AC
Compressor
1
DO3
2
3
DO2
4
DO1
5
S1
S2
S3
COM
S1
S2
S3
COM
Cab air sensor
Aux. Inputs
Evap Sensor
Condensor Sensor
Door Switch
External input for pull down
External input for ECO
External input for defrost
Cab air sensor
Aux. Inputs
Evap Sensor
Condensor Sensor
Door Switch
External input for pull down
External input for ECO
External input for defrost
Danfos
Danfos
80G40
© Danfoss | DCS (vt) | 2020.10
AI355927147717en-000102
Danf
already on order pro
All trademarks in this material are property of the respec
Ordering
Typ e
Qty. Code no.
I-Pack
EETc 12 - EET Compact, 1 relay, 230 V, 50/60 Hz 150 080N0010
EETc 22 - EET Compact, 2 relay, 230 V, 50/60 Hz 150 0 80 N0 011
EETc 11 - EET Compact, 1 relay, 120 V, 50/60 Hz 150 080N0 012
EETc 21 - EET Compact, 2 relay, 120 V, 50/60 Hz 150 080 N0013
EETa 2W - EET Advanced, 2 relays, wide voltage (120 – 230 V), 50/60 Hz 150 08 0N0 014
EETa 3W - EET Advanced, 3 relays, wide voltage (120 – 230 V), 50/60 Hz 150 080 N0015
Temperature sensors
-40 – +80 °C, PVC Standard, NTC 10K, Cabinet Sensor
S1, 1000 mm 150 080N0300
S1, 1500 mm 150 080N0301
S1, 2000 mm 150 080N0302
S1, 3000 mm 150 080N0303
-40 – +80 °C, PVC Standard NTC 10K, Defrost Sensor
S2, 1500 mm, 2 Blue Stripes 150 080N0304
S2, 2000 mm, 2 Blue Stripes 150 080N0305
S2, 3000 mm, 2 Blue Stripes 150 080N0306
-40 – +80 °C, PVC Standard, NTC 10K, Condenser Sensor
S3, 1000 mm, 1 Blue Stripe 150 080N0307
S3, 3000 mm, 1 Blue Stripe 150 080N0308
Magnetic door sensor
2000 mm 150 0 80 N0 311
3000 mm 150 080N0312
Cable door sensor
2000 mm 150 080N0313
4000 mm 150 080 N0314
Hand knob
Black 480 077F8562
Washer
Black with white print 0-9 480 077F8577
Power plug*
4-pole with screw 50 080 N0310
6-pole with screw 54 080G3357
Programming
Please contact your nearest sales representative for more information.
* The connectors are rated for 28 Amps max.
oss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
vided that such alterations can be made without subsequential changes being necessary eady agreed.
© Danfoss | DCS (vt) | 2020.10
tive companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
AI355927147717en-000102
Loading...