CSR-20 & CSR-40, September 1999
µ
P-D Controller
Pause Alarms
4-7
Alarm
Code
Type
Description
00
No Fault
02
Check
Ambient Temperature Sensor Failure
03
Check
Supply Air Temperature Sensor Failure
04
Check
Evaporator Pressure Regulator (KVQ)
Valve Thermistor Failure
05
Check
Evaporator Coil Temperature Sensor
Failure
06
Check
Humidity Sensor Error
07
Check
Return Air Temperature Sensor Failure
09
Shutdown
Evaporator Coil Over Temperature
10
Check
High Pressure Cutout
12
Check
Temperature Out-of-Range High
13
Check
Temperature Out-of-Range Low
14
Check
Defrost Terminated on Time Limit
16
Shutdown
Digital Input Failure
25
Check/
Return & Supply Temperature Sensor
Shutdown
Failure
37
Shutdown
Low Refrigerant Level (Option)
38
Check
Real Time Clock Battery Failure
41
Check
Spare Sensor 5 Failure (Option)
42
Check
Customer Configuration Alarm
43
Shutdown
Frequency Out-of-Range Low
44
Shutdown
Three Phase Current Imbalance
45
Shutdown
Frequency Out-of-Range High
46
Check
USDA Sensor 1 Failure (Option)
47
Check
USDA Sensor 2 Failure (Option)
48
Check
USDA Sensor 3 Failure (Option)
49
Check
Pulp Sensor Failure (Option)
50
Check/
Compressor Current Out-of-Range
Shutdown
(Pretrip)
51
Check/
Unit Current Out-of-Range in Cool Mode
Shutdown
52
Check/
Modulation System Failure (Pretrip)
Shutdown
53
Check/
Heating Current Out-of-Range (Pretrip)
Shutdown
54
Check/
Defrost Current Out-of-Range (Pretrip)
Shutdown
55
Check/
High Speed Evaporator Fan Failure
Shutdown
(Pretrip)
56
Check/
Low Speed Evaporator Fan Failure
Shutdown
(Pretrip)
57
Check/
Condenser Fan Current Out-of-Range
Shutdown
(Pretrip)
58
Check/
Sensor Calibration Failure (Pretrip)
Shutdown
59
Check
Datalogger Full (
µ
P-A+)
60
Check
Datalogger Full (Global)
61
Check
Real Time Clock Invalid
63
Check
Bypass Valve Circuit Failure (Pretrip)
64
Check
Pretrip Preconditioning Failure
65
Check
Datalog Queuing Error
69
Check
Dehumidify Valve Circuit Failure
(Pretrip) (Option)
70
Check
Hourmeter Alarm
71
Check
User Hourmeter 1 Expired
72
Check
User Hourmeter 2 Expired
73
Check
User Hourmeter 3 Expired
74
Check
User Hourmeter 4 Expired
79
Check
Datalogger Overflow
81
Check
Compressor Head Temperature Sensor
Failure
82
Check
Compressor Head Over Temperature
85
Check/
Compressor Current Out-of-range
Shutdown
92
Check
Condenser Fan Sensor Failure
97
Shutdown
Loss of Communications with Output
Module
Pause Alarms
A Pause Alarm (“PAUSE ALMXX”) stops unit operation due
to a shutdown alarm condition. “PAUSE ALMXX” appears
in the display for 1 second every 10 seconds until the condition
has been corrected. A 2-digit alarm code (“XX”) in Pause dis-
play identifies the alarm condition. The following Alarm
Codes generate a Pause Alarm display:
• 10, High Pressure Cutout
• 43, Frequency Out-of-Range, Low (low supply voltage)
• 82, Compressor Head Over Temperature
NOTE: “PAUSE ALM43” will also appear in the con-
troller display when the Setpoint Enable function is
activated to download the controller data logger or
change the setpoint.
“PAUSE ALM10”, High Pressure Cutout
The controller immediately stops the compressor and evapora-
tor fans when the high pressure cutout switch opens. The con-
denser fan and phase select outputs remain energized as the
controller operates the condenser fan for 5 minutes to correct
