EKC 302A, B
Instructions RI8PK153 © Danfoss 08/2011
5
Start-up:
Regulation starts when the voltage is on.
1 Go through the survey of factory settings. Make any necessary changes in the respective parameters.
2 For network. Set the address in o03 and then transmit it to the gateway/system unit with setting o04.
English
The buttons
Set menu
1. Push the upper button until a parameter
is shown
2. Push the upper or the lower button and
find that parameter you want to change
3. Push the middle button until the
parameter value is shown
4. Push the upper or the lower button and
select the new value
5. Push the middle button again to enter
the value.
Set temperature
1. Push the middle button until the
temperature value is shown
2. Push the upper or the lower button and
select the new value
3. Push the middle button to select the
setting.
Reading the temperature at sensor S5
• Push briefly the lower button
Manuel start or stop of a defrost
• Push the lower button for four
seconds.
Light emitting diode
= refrigeration
= defrost
= fan running
Flashes fast at alarm
Cutout alarm relay / see alarm code
• Push briefly the upper button
SW = 1.0x
Parameters
Controller
Min.-
value
Max.-
value
Factory
setting
Actual
setting
Function
Codes
EKC
302A
EKC
302B
Normal operation
Temperature (set point)
---
-50°C
50°C
2°C
Thermostat
Differential
r01
0,1 K
20 K
2 K
Max. limitation of set point setting
r02
-49°C
50°C
50°C
Min. limitation of set point setting
r03
-50°C
49°C
-50°C
Adjustment of temperature indication
r04
-20 K
20 K
0.0 K
Temperature unit (°C/°F)
r05
°C
°F
°C
Correction of the signal from Sair
r09
-10 K
10 K
0 K
Manual service(-1), stop regulation(0), start regulation (1)
r12
-1
1
1
Displacement of reference during night operation
r13
-10 K
10 K
0 K
Activation of reference displacement r40
r39
OFF
on
OFF
Value of reference displacement (activation by r39 or DI)
r40
-50 K
50 K
0 K
Alarm
Delay for temperature alarm
A03
0 min
240 min
30 min
Delay for door alarm
A04
0 min
240 min
60 min
Delay for temperature alarm after defrost
A12
0 min
240 min
90 min
High alarm limit
A13
-50°C
50°C
8°C
Low alarm limit
A14
-50°C
50°C
-30°C
Alarm delay DI1
A27
0 min
240 min
30 min
High alarm limit for condenser temperature (o70)
A37
0°C
99°C
50°C
Compressor
Min. ON-time
c01
0 min
30 min
0 min
Min. OFF-time
c02
0 min
30 min
0 min
Compressor relay must cutin and out inversely (NC-function)
c30
0 / OFF
1 / on
0 / OFF
External relays (Zero crossing control – only EKC 302)
Must be 'ON' when connecting to external relays
c70
OFF
On
On
Defrost
Defrost method (none/EL/gas)
d01
no
gas
EL
Defrost stop temperature
d02
0°C
25°C
6°C
Interval between defrost starts
d03
0 hours
48 hours
8 hours
Max. defrost duration
d04
0 min
180 min
45 min
Displacement of time on cutin of defrost at start-up
d05
0 min
240 min
0 min
Drip off time
d06
0 min
60 min
0 min
Delay for fan start after defrost
d07
0 min
60 min
0 min
Fan start temperature
d08
-15°C
0°C
-5°C
Fan cutin during defrost
0: Stopped
1: Running
2: Running during pump down and defrost
d09
0
2
1
Defrost sensor (0=time, 1=S5, 2=Sair)
d10
0
2
0
Max. aggregate refrigeration time between two defrosts
d18
0 hours
48 hours
0 hours
Defrost on demand - S5 temperature’s permitted variation during frost build-up. On
central plant choose 20 K (=off)
d19
0 K
20 K
20 K
Fans
Fan stop at cutout compressor
F01
no
yes
no
Delay of fan stop
F02
0 min
30 min
0 min
Fan stop temperature (S5)
F04
-50°C
50°C
50°C
Real time clock
Six start times for defrost.
Setting of hours.
0=OFF
t01-t06
0 hours
23 hours
0 hours
