Danfoss ERC 21 Series

Figure 3: ERC 214
Sair
Sc
DI1
DI2
DO4
DO2
DO3
DO1
S5
Danfoss 80G8379
Outputs:
• Relay 1: compressor/solenoid valve control
• Relay 2: defrost control, external alarm or cabinet light
• Relay 3: fan control
• Relay 4: this can be congured for either cabinet light or external alarm
Inputs:
• Input 1: control sensor (Sair)
• Input 2: defrost sensor (S5)
• Input 3: condenser sensor (Sc) or digital input that can be congured for various functions as metioned under
menu code o02
• Input4: digital input that can be congured for various functions as mentioned under menu code o37
© Danfoss | Climate Solutions | 2023.01 BC194286421698en-000901 | 7
Electronic refrigeration control, type ERC 21X