Fan Pulsating During Compressor Off Cycle - Danfoss ERC 211 User Manual

Predefined application table for ERC 214
App Mode Description
Cooling/
App 0
No predefined application
Heating
Medium temperature ventilated refrigeration units
App 1
Cooling
with timed natural defrost
Medium temperature ventilated refrigeration units
App 2
Cooling
with timed electrical defrost
Low temperature ventilated refrigeration units with
App 3
Cooling
timed electrical defrost
Medium temperature ventilated refrigeration units
App 4
Cooling
with electrical defrost (by temperature)
Low temperature ventilated refrigeration units with
App 5
Cooling
electrical defrost (by temperature)
Cooling/ No predefined application with simplified list of
App 6
Heating parameters
Selection 1 covers normal temperature applications with natural defrost with stop on time.
Selection 2 and 3 covers respectively medium and low temperature applications with electrical defrost with stop on time.
Selection 4 and 5 covers respectively medium and low temperature applications with electrical defrost with stop on
defrost sensor "S5".
Selection 6 covers applications where a reduced parameter list is recommended.
ERC 214 - APP 1
DI1 DI2
230 V AC
DO1 DO3
2.5| Fan pulsating during compressor
OFF cycle
This is an energy saving feature. During compressor OFF cycle controller will run the fan with defined duty cycle to maintain
uniform temperature and delay the need of compressor switching ON
ERC 214 - APP 2-3
Sair DI1
230 V AC
DO4 DO1
Temperature
(2 – 6 °C)
(0 – 4 °C)
(-26 – -20 °C)
(0 – 4 °C)
(-26 – -20 °C)
DI2 Sair
230 V AC
DO2 DO3 DO4
FR · ERC 21X user manual · DKRCC.ES.RL0.H3.02/520H9656 · ©Danfoss
Defrost type Defrost end
Natural Time
Electrical Time
Electrical Time
Electrical Temperature
Electrical Temperature
ERC 214 - APP 4-5
DI1 DI2 S5 Sair
DO1 DO2 DO3 DO4
9