1751 Hurd Drive ● Irving, Texas 75038 ● (972) 580-0200 ● (888) 580-0202 ● Fax (972) 580-0277
URL: www.thermal-edge.com ● Email:
thermaledgeinfo@thermal-edge.com
SP-ENG-211-000-10 Rev 1.1
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P a g e
Function
Operation
Parameter
Menu
Location
Factory
Default
Operating
Range
Unit
Auxiliary
Differential
Heater or Dry Contact
Hysteresis
*1
Shy
Hidden
Menu 2
3
1 - 45
°F
Maximum
Temperature
Alarm
Alerts with “HA” when
maximum temperature has
been exceeded
ALU
Hidden
Menu 2
105
45 - 302
°F
Minimum
Temperature
Alarm
Alerts with “LA” when
minimum temperature has
been exceeded
ALL
Hidden
Menu 2
45
-67 - 105
°F
*1
Note:
When both Heater and Dry Contact options are included, these parameters only control Heater
Settings. Dry Contact is controlled by ALU.
Alarms Signals
Message
Cause
Outputs
“P1”
Enclosure Probe Failure
Start and stop of the compressor after 15 minute
intervals
*2
“P2”
Condenser Probe Failure
No Output
*2
“HA”
Maximum Temperature Alarm: P1 > 105°F for 3
minutes (after initial 30 min. start up delay)
No Output
*2
“LA”
Minimum Temperature Alarm: P1 < 45°F for 3
minutes (after initial 30 min. start up delay)
No Output
*2
“HA2”
Condenser High Temperature Alarm: P2 > 145 °F for
3 minutes
Compressor Off
*2
“LA2”
Condenser Low Temperature Alarm: P2 < 50 °F for 3
minutes
No Output
*2
“CA”
Evaporator Coil Alarm: Low Pressure for 2 minutes
Compressor Off
*2
“noP”
Invalid Probe Selected: Low Evaporator Coil
No Output, Display Only
*2
Note:
When both Heater and Dry Contact options are included, Dry Contact (Alarm Contact) Relay is
activated.
ALARM RECOVERY
……..
If the compressor is turned off due to an alarm, it will be able to restart after the
AC
anti short-cycle time delay.
(Parameter AC = 5minutes)
Probe
alarm
P1
is cleared with no time delay after the fault is cleared.
Probe
alarm
P2
starts and stops with no time delay.
Temperature
alarm
HA
automatically clears as soon as the temperature returns to below 105
°F (the
ALU
setpoint) -2°F = 103°F.
Temperature
alarm
LA
automatically clears as soon as the temperature returns to above 55
°F (the
ALL
setpoint) +2°F = 47°F.
Temperature
alarm
HA2
automatically clears as soon as the condenser coils temperature returns to below 135
°F.
Temperature
alarm
LA2
automatically clears as soon as the condenser coils temperature returns to above 60
°F.
Temperature
alarm
CA
automatically clears as soon as the pressure returns to normal.
