Spectracool AC Error Codes


There are seven possible non-latching alarm conditions detectable by the controller and are indicated on the
controller display. All alarms can also be accessed through the Ethernet and USB connections.

TP -General Alarm -Door open and/or smoke detected- Unit turns off for duration of alarm- Relay Contacts Close

LA -High Pressure -Warning MALF high pressure switch opens- No effect on function- N/A

E1 -Air Inlet Temperature Sensor Alarm- Sensor Failure- Unit turns off for duration of alarm- Relay Contacts Close

E2 -Air Outlet Temperature Sensor Alarm- Sensor Failure -Unit turns off for duration of alarm- Relay Contacts Close

Ht -High Temperature Alarm Default = 125 F- Cabinet over temperature Alarm clears at default setting -2 F -No effect on function- Relay Contacts Close




Lt -Low Temperature Alarm Default = 40 F -Cabinet under temperature Alarm clears at default setting +27 F- No effect on function N/A

A1 -Frost Alarm Evaporator coil frozen Alarm clears at 59 F -Compressor and Evaporator fan off for duration of alarm -Relay Contacts Close

ALARM INPUT CONNECTION
The Remote Access Control can accept a dry contact/switch input via the two 18 AWG white wires located at the
back of the air conditioner. This input is associated with the controller display alarm mnemonic TP (door open
and/or smoke detected). [To use this feature, remove the splice connector connecting the two white wires and
connect customer supplied enclosure door switch in its place.]


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