Condensing Unit Controller EC2-5X1
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6.3
Important parameters on EC2-551 to configure according to Copeland
EazyCool™ model
6.3.1 EC2-551 for Copeland EazyCool™ condensing unit with two
compressors with fan speed controller FSP150
Major parameters for operation
Parameter
c
Application Parameters
Min
Max
Unit
Def
c1
Number of compressors
1
2
-
2
c3
Control mode (network system)
2
3
-
2
c4
Compressor 1 control mode
0
2
flag
0
c5
Compressor switch logic
0
1
flag
1
c6
Number of compressor to switch on in case of sensor
failure
0
2
-
0
EC2-551
c4 Compressor 1 control mode
0 = compressor 1 in standard control loop
1 = compressor 1 act as base load compressor
2 = compressor 1 act as modulating (
PWM control for Copeland Digital Scroll™
compressor only
)
NOTE
: c4 parameter should be either 0 or 1
6.3.2 EC2-551 for Copeland EazyCool™ condensing unit with Copeland
Digital Scroll compressor
Major parameters for operation
Parameter
c
Application Parameters
Min
Max
Unit
Def
c1
Number of compressors
1
2
-
2
c3
Control mode (network system)
2
3
-
2
c4
Compressor 1 control mode
0
2
flag
2
c5
Compressor switch logic
0
1
flag
1
c6
Number of compressor to switch on in case of sensor
failure
0
2
-
0
EC2-551
c4 Compressor 1 control mode
0 = compressor 1 in standard control loop
1 = compressor 1 act as base load compressor
2 = compressor 1 act as modulating (
PWM control for Copeland Digital Scroll™
compressor only
)
NOTE
: For a digital condensing unit c4 should only be fixed on “
2
”
C6.1.3/0505-0705/E
Part no: 3125495
17
