Reference; Alarm; Defrost - Danfoss ERC 21 Series User Manual

Electronic refrigeration control, type ERC 21X
Function
Cooling/Heating (rE=Cooling, Ht= Heating)
Sensor type (n5=NTC 5K, n10=NTC10K, ptc=PTC,
pt1=PT1000)
DO2 config (dEF=Defrost; ALA=alarm; Lig=Light)
(1) (1) This option is a default setting in the controller and cannot be changed. This option is a default setting in the controller and cannot be changed.
(2) (2)
This parameter can only be set when regulation is stopped, i.e. "r12" is set to 0. This parameter can only be set when regulation is stopped, i.e. "r12" is set to 0.

Reference

Table 22: Reference
Function
Reference
Setpoint
Differential
Maximum set point limitation
Minimum set point limitation
Display offset
Display Unit (°C/ °F)
Calibration of Sair
Main switch ( -1=Service, 0=OFF, 1=ON,)
Night Set back
Reference displacement offset temperature
Pull down duration
Pull down limit temperature

Alarm

Table 23: Alarm
Function
Alarm
Delay for temp alarm during normal conditions
Delay for temp alarm during pull-down/start up/

defrost

High temp. alarm limit
Low temp. alarm limit
DI1 delay (Time delay for selected DI1 function)
DI2 delay (Time delay for selected DI2 function)
Condenser High alarm limit
Condenser High block limit
Voltage protection enable
Minimum cut-in voltage
Minimum cut-out voltage
Maximum voltage
Defrost
Table 24: Defrost
Function
Defrost
Defrost Method (no=None, nAt=Natural, EL = Elec-
tric; gAS=Hot gas)
Defrost stop temperature.
Defrost Interval
Max defrost Time
Defrost delay at power up
Drip delay
Fan delay after defrost
Fan start temperature after defrost
© Danfoss | Climate Solutions | 2023.01
Code Min. Max. Unit
o07 (2) rE Ht
o06 n5 ptc
(2)
o71 (2) dEF Lig
Code Min. Max. Unit
r--
r00 -100.0 200.0 °C
r01 0.1 20.0 K
r02 -100.0 200.0 °C
r03 -100.0 200.0 °C
r04 -10.0 10.0 K
r05 -C -F
r09 -20.0 20.0 K
r12 -1 1
r13 -50.0 50.0 K
r40 -50.0 20.0 °C
r96 0 960 min
r97 -100.0 200.0 °C
Code Min. Max. Unit
A--
A03 0 240 min
A12 0 240 min
A13 -100.0 200.0 °C
A14 -100.0 200.0 °C
A27 0 240 min
A28 0 240 min
A37 0 200 °C
A54 0 200 °C
A72 no YES
A73 0 270 V
A74 0 270 V
A75 0 270 V
Code Min. Max. Unit
d--
d01 no gAS
d02 0.0 50.0 °C
d03 0 240 hour
d04 0 480 min
d05 0 240 min
d06 0 60 min
d07 0 60 min
d08 -50.0 50.0 °C
AP0 AP1 AP2 AP3
rE rE (1) rE (1) rE (1)
n10 n10 n10 n10
dEF ALA (1) dEF (1) dEF (1)
AP0 AP1 AP2 AP3
2.0 4.0 2.0 -20.0
2.0 2.0 2.0 2.0
50.0 6.0 4.0 -18.0
-35.0 2.0 0.0 -24.0
0.0 0.0 0.0 0.0
-C -C -C -C
0.0 0.0 0.0 0.0
1 1 1 1
0.0 0.0 0.0 0.0
0.0 0.0 0.0 0.0
0 0 0 0
0.0 0.0 0.0 0.0
AP0 AP1 AP2 AP3
30 45 30 30
60 90 60 60
8.0 10.0 8.0 -15.0
-30.0 0.0 -2.0 -30
30 30 30 30
30 30 30 30
80 80 80 80
85 85 85 85
no no no no
0 0 0 0
0 0 0 0
270 270 270 270
AP0 AP1 AP2 AP3
EL nAt EL EL
6.0 - - -
8 6 8 12
30 45 15 15
0 0 0 0
0 0 0 0
0 0 0 0
-5.0 50.0 (1) 50.0 (1) 50.0 (1)
BC194286421698en-000901 | 25
AP4 AP5 AP6 AP7
rE (1) rE (1) rE Ht (1)
n10 n10 n10 n10
dEF (1) dEF (1) dEF ALA
AP4 AP5 AP6 AP7
2.0 -24.0 2.0 50.0
2.0 2.0 2.0 4.0
4.0 -20.0 50.0 70.0
0.0 -26.0 -35.0 30.0
0.0 0.0 0.0 0.0
-C -C -C -C
0.0 0.0 0.0 0.0
1 1 1 1
0.0 0.0 0.0 0.0
0.0 0.0 - 0.0
0 0 - -
0.0 0.0 - -
AP4 AP5 AP6 AP7
30 30 30 10
60 60 60 -
8.0 -15.0 8.0 80.0
-2.0 -30.0 -30.0 20.0
30 30 30 30
30 30 30 30
80 80 - -
85 85 - -
no no no no
0 0 0 0
0 0 0 0
270 270 270 270
AP4 AP5 AP6 AP7
EL EL EL -
6.0 6.0 6.0 -
8 12 8 -
30 30 30 -
0 0 NA -
0 0 2 -
(1)
0 0 5 -
(1)
-5.0 -5.0 - -