Condensing Unit Controller EC2-5X1
Parameter
F
Modulating Parameters
Min
Max
Unit
Def
F2
Minimum output value
10
100
%
20
F3
Maximum output value
10
100
%
100
EC2-551
Minimum & Maximum output value could be adjusted
In case of a single compressor Copeland EazyCool™ condensing unit with a Copeland
Digital Scroll compressor, the maximum output could be set below 100% if system
requests less than the maximum capacity. In that case
F3 > F2
.
7
Alarms and Messages
7.1 Alarm
codes
hP
High pressure alarm signal flashing before indicating the actual pressure value of the
system
Controller 1: suction pressure higher than the maximum limit A3 (inactive by
default)
Controller 2: condensing pressure higher than the maximum limit A3
Alarm during the pull down period in case A3 is fixed around 6 bar:
During the pull down period, alarm hP1 will be flashing until the condensing unit
reaches a value below the A3 set-point (by default 6 bar).
Pull down curve
0
2
4
6
8
10
12
t=0
t=1
t=2
t=3
t=4
t=5
t=6
t=7
t=8
t=9
t=10
t=11
P0 - (P1)/2)
P0 + (P1)/2)
P0: Modulation set-point (suction pressure)
A2: Min. suction pressure Iimit (alarm)
A3: Max. suction pressure Iimit (alarm)
If A3 is fixed at 6 bar, hP1 alarm
will flash until suction pressure
reaches a value below A3
18
Part no: 3125495
C6.1.3/0505-0705/E
