Danfoss ERC 21 Series, User Manual, Page: 11 / 36

Applications
Pre-defined applications
The purpose of the pre-defined applications is to give the user an easy and fast way to configure the controller to a
specific application based on storage temperature (LT, MT, HT), defrost type (none, natural, electrical) and defrost
method (terminated on time or temperature).
When user select specific application based on their requirements, the controller will load a specific set of parameter
values and will hide parameters that are not relevant for the selected application. Adjustment of the set of
parameters value will be still possible at any time.
In addition to pre-defined applications, all controller versions have two standard applications, one with full list of
parameters and another with simplified list of parameters, that allows the user to make their own customized
parameter settings (AP0 and AP5 in case of ERC 211 and AP0 and AP6 in case of ERC 213 / ERC 214).
ERC 211 controller
Table 1: Pre-defined application table of ERC 211 controller
APP Description Temp. range Defrost end DO1 AI1 DI1
(1)
AP0 Fully Configurable Standard Application (Cooling / Heating)
AP1 MT, No defrost 4 – 20 °C NA Sair DI1
AP2 MT, Natural defrost 2 – 6 °C Time Sair DI1
AP3 MT, Natural defrost, defrost stop by Sair 2 – 6 °C Sair temp Sair DI1
AP4 Heating Thermostat 30 – 70 °C NA Sair DI1
AP5 Fully configurable simplified application (Cooling / Heating)
(1) The digital inputs DI1 can be configured for multiple functions (refer parameter “o02”). (1) The digital inputs DI1 can be configured for multiple functions (refer parameter “o02”).
ERC 213 controller
Table 2: Pre-defined application table of ERC 213 controller
APP Description
Temp.
range
Defrost
end
DO1 DO2 DO3 AI1 AI2 DI1
(1)
DI2
(1)
AP0 Fully Configurable Standard Application (Cooling / Heating)
AP1 MT, Natural defrost, Alarm, fan 2 – 6 °C By time Sair NC DI1/Sc DI2
AP2 MT, Electrical defrost, Fan 0 – 4 °C By time Sair NC DI1/Sc DI2
AP3 LT, Electrical defrost, fan -24 – -18 °C By time Sair NC DI1/Sc DI2
AP4 MT, Electrical defrost, Fan 0 – 4 °C
By
temp(S5)
Sair S5 DI1/Sc DI2
AP5 LT, Electrical defrost, Fan -26 – -20 °C
By
temp(S5)
Sair S5 DI1/Sc DI2
AP6 Fully configurable simplified application (Cooling / Heating)
AP7 Heating Thermostat 30 – 70 °C NA Sair NC DI1 DI2
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions (refer Parameters “o02” and “o37”).
(1)
The digital inputs DI1 and DI2 can be configured for multiple functions (refer Parameters “o02” and “o37”).
NC = Not configured
© Danfoss | Climate Solutions | 2023.01 BC194286421698en-000901 | 11
Electronic refrigeration control, type ERC 21X