Installation & Start-up – HES Series
34
Copeland Performance Alert (CPA).
This device is used to monitor the compressor discharge
temperature, compressor current and phase, as well as control voltage to the compressor contactor. If a
problem is detected, the compressor will shut off. The fault light on the CPA will flash a certain
number of times to indicate the fault that occurred. See table below.
NOTE:
When this occurs, the ice machine will continue to run but the compressor will not be on. The
ice machine will eventually shut off on a “Long Cycle Fault”.
Some faults, referred to as “lockout” faults, will require cycling power to the Performance Alert to
reset. This can be done by switching CB1 to the “off” position for 5 seconds, then back “on”.
NOTE:
If ice machine has a High/Low pressure fault, the Performance Alert can detect low control
voltage at the compressor contactor and flash 9 times. This will clear when the machine is re-start.
FIGURE 22
Copeland Performance Alert Wiring
Alert Codes System Conditions
Description
1
High Discharge Temperature
Discharge Temperature above set point
(default 230 Deg F) adjustable 170 to 281
4
Lock Rotor
4 Consecutive Compressor trips after run time of 1 to
15 seconds indicating compressor won't start
6
Missing Phase
Demand signal is present but current is missing in
one phase
7
Reverse Phase (Scroll only)
Demand signal is present but current is not detected in
the correct sequence
8
Welded Contactor
No demand signal but current has been detected in one
or both phases
9
Low Voltage
Control voltage dips below 85V for 110V or 170V for
220V
11
DLT Sensor Failure
Discharge Temperature Sensor short or open circuit
Note:
Faults 1, 4, 6, 7, 9 will shut off compressor with a off time of 20 minutes (adjustable from 10 to 40 minutes).
If fault 1, 4, 6 or 7 occurs ("LOCKOUT"), fault must be manually reset by cycling power to the Performance Alert.
Lockout Configuration
Code
Minimum Maximum Default
1
High Discharge Temp
2
6
4
4
Locked Rotor
2
10
4
6
Missing Phase
1
10
10
7
Reverse Phase
1
1
1
TABLE 8
Copeland Performance Alert Codes
Summary of Contents for HE S Series
Page 2: ...Installation Start up HES Series 2 Blank Page ...
Page 12: ...Installation Start up HES Series 12 FIGURE 8 Typical Space Diagram ...
Page 26: ...Installation Start up HES Series 26 FIGURE 16 Piping Schematic Air Cooled ...
Page 27: ...Installation Start up HES Series 27 FIGURE 17 Piping Schematic Water Cooled ...
