Condensing Unit Controller EC2-5X1
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6.2
Controller 2 (Fan controller)
Two compressor Copeland EazyCool™ condensing units without fan speed controller are
equipped with EC2-511, controller 2 is switching fan “ON/OFF”.
Two compressor Copeland EazyCool™ condensing units with fan speed controller
(option) as well as a two compressor Copeland EazyCool™ condensing units including a
Copeland Digital Scroll™ compressor are equipped with EC2-551, controller 2 is
modulating fan(s) speed.
Parameter
P
Set Point Parameters
Min
Max
Unit
Def
Min
Max
Unit
Def
P0
Pressure set-point (condensing) for fan circuit
-1.0
50.0
bar(g)
14.0
-1.0
50.0
bar(g)
14.0
P1
Pressure band (control band for P/PI, dead band for
control mode)
0.0
50.0
bar
4.0
0.0
50.0
bar
4.0
P3
Fast recovery from low pressure
-9.9
50.0
bar(g)
-9.9
-
-
-
-
EC2-511
EC2-551
P0
: Set point for fan modulation
P1
: Dead band default setting point is 4 bar.
Parameter
t
Time Parameters
Min
Max
Unit
Def
Min
Max
Unit
Def
t1
1)
Time delay before adding fan(s)
0
99
10sec
3
-
-
-
-
t2
1)
Time delay before removing fan(s)
0
99
10sec
3
-
-
-
-
Parameter
A
Alarm Parameters
Min
Max
Unit
Def
Min
Max
Unit
Def
A2
Minimum condensing pressure alarm limit
-1.0
50.0
bar(g)
10.0
-1.0
50.0
bar(g)
10.0
A3
Maximum condensing pressure alarm limit
-1.0
50.0
bar(g)
27.0
-1.0
50.0
bar(g)
27.0
A4
1)
Delay time for minimum pressure alarm limit
0
990
10sec
0
0
990
10sec
0
A5
1)
Delay time for maximum pressure alarm limit
0
990
10sec
0
0
990
10sec
0
A8
1)
Fan serial alarm delay
0
990
10sec
0
0
990
10sec
0
A9
2)
Fan run limit
0
990
k Hr
0
0
990
k Hr
0
EC2-551
EC2-511
EC2-551
EC2-511
1)
Value shown in display is 10 times lower
2)
These values have a resolution of 10.000 hours, on the local display. Example: value 1
means 10.000 hours.
C6.1.3/0505-0705/E
Part no: 3125495
15
