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Active Protection – Code L7 – Compressor open run circuit
If the ICC detects current in the start circuit without current present in the run cir-
cuit, , the ICC will lockout the compressor to keep it from continuing to operate
and flash a “L” on the dual 7-segment LEDs followed by a “07”.
IMPORTANT: This mode of active protection must be manually reset.
Exiting Active Compressor Protection Lockout
Three are three methods to reset the ICC after an active protection lockout:
1) Cycle the line voltage to the unit
2) Cycle 24VAC to the ICC (remove the R or C connection to the ICC)
3) Push the TEST button down for one (1) second and release
Note: The ICC will attempt to start the unit when the TEST button is pressed and
released
Note: The preferred method of resetting the ICC is to push the TEST button down
for one (1) second.
12.13 Test and Fault Recall Modes
Test Mode (Test Button on the ICC)
• Enter TEST mode by pressing the TEST button with an insulated probe for one
(1) second and release.
• The TEST mode causes the ICC to do the following
1) Resets the ICC from any active protection lockout mode
2) Resets the 3-minute anti-short cycle timer
3) Energizes the unit without a call for unit operation
• If the 3-minute anti-short cycle timer or 30 second minimum run timer is active (a
flashing “c” or “C” is displayed on the dual 7-segment LEDs) and a call for unit
operation is present, TEST mode causes:
1) A “t” to display momentarily on the dual 7-segment display
Lower case “t”
2) The compressor will start
3) The display will change to a steady “c” or “C” to show the current call for unit
operation.
Note: If a call for unit operation is present at the end of TEST mode will cause the
unit to continue to operate.
• If no call for unit operation is present, TEST mode causes
1) A steady “t” appears on the dual 7-segment LEDs
2) The compressor will start
3) The compressor will turn off after 5-seconds.
Note: Entering TEST mode without a call for unit operation will cause the com-
pressor to run 5-seconds.
CONVENTIONAL THERMOST
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T WIRING
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