4
Connection via contactor e.g.
– 3 heating cables
User instruction
1. Light indicator
：
Red light
：
When heating output, it shows red light.
When the red light flashing, it indicated
the floor sensor is not be installed correctly or damaged.
Room thermostat with floor limitation or floor mode: When the external floor sensor
short circuit or open circuit, the red light flashing, and stop the output.
Green light
：
When external signal input (such as FP function, when the grid signal input set
temperature reduce 5
℃
), it shows green light.
Appears the clock signal, it was set temperature reduce 5
℃
.
Yellow light
：
Warning function. ( When the external FP signal and heating output indicate at
the same time.)