User's Guide

Filter Monitoring

To enable this function, you must first modify the number of filter days in

the parameter settings. The thermostat will keep track of the number of

days the filter is used. When the recorded number of days reaches the

preset value, the main display will flash with the filter icon to prompt

you to replace or clean the filter.

Pre-cooling/preheating

This function works with your TIMING schedules. When the pre-

cooling/preheating function is enabled, the thermostat will calculate how

far in advance it should start so that once the scheduled time arrives, the

desired room temperature range has already been achieved. The

“Recovery” character will be shown on the main display screen when pre-

cooling/preheating has been initiated.

Error Codes

If an issue occurs during your normal operation, an Error code may be

displayed on the main screen to prompt you to repair the equipment.