30
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.
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