Instruction Manual

Model: Touch Carbon

Fail Safe

Modbus

Fascia PCB

If the thermostats on board sensor is disabled and is reliant on a single wireless remote

sensor for temperature measurement, failsafe will activate if connection is lost.

• From the moment ‘E2’ is displayed on screen, failsafe will become active.

• Approximately 12 minutes later the thermostat will enable the heat source for an initial

12 minute period and then repeat every hour.

• Failsafe will continue until the thermostat re-establishes connection to the remote sensor.

Modbus interface allows the thermostat to be controlled via home automation or a

building management system.

• A maximum of 32 devices can be connected to a single RS485 adapter.

• It is recommended that a foil twisted pair (FTP) cable is used for the

Modbus connections.

• All Modbus connections should be daisy chained

rather than wired in a star formation.

• If the Touch Carbon thermostat is the last Modbus

device on the end of the chain,move the toggle switch on

the back of the fascia to the ‘On’ position.