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How do I wire my Relay-25?
The Relay-25 fits in a standard single gang box. It is used in conjunction with the 4iE® Smart thermostat series as well as the Tempo thermostat, in order to expand the original 15 amp capacity. This 240V relay is specifically designed for large applications beyond 800 sqft.
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Built for quiet operation, you can mount the relay-25 in an adjacent closet or in a space above or below. It connects to the 4iE® Smart thermostat via a 240V coil on the relay. This relay is for use with indoor floor heating systems only.
Heating Loads Connected to Relay-25 only, controlled by the 4iE®
Connect power, or line, to terminals 2 and 6. Connect the floor heating system to terminals 4 and 8. Run the connecting wire between terminals 0 and 1 and the load side of the thermostat.
Heating Loads Connect to Relay-25 and 4iE®
Relay-25: max load 25A
Max load: 15A
Total Max Load: 40A
Connect power, or line, to terminals 2 and 6. Connect the floor heating system to terminals 4 and 8. Run the connecting wire between terminals 0 and 1 and the load side of the thermostat with a maximum of 15 Amp heating unit.
For more information, please refer to the thermostat manual or relay manual.