Useful information
24 iT500 User Manual
The bottom switch will show a constant red
light when the iT500RX Receiver is ready to
pair.
When the iT500RX Receiver and the iT500
Thermostat are powered and paired then the
light will be green.
Flashing blue light indicates a heat call/Hot
water call
FAILSAFE MODE: In the event of RF signal loss,
your system will be switched on for 4 minutes,
then o for 11 minutes. If you want to disable
FAILSAFE MODE when RF link has been lost
then move the slide switch on the iT500RX to
either the manual or o position.