Commissioning Instructions

Installation
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A6V11214854_enUS_c
8. Attach the front module horizontally, making sure that each side of the front
module fully aligns with that of the power unit, and then press the corners
following the order described in the following illustration until you hear a click
sound. Note that you need to discharge the static electricity on your body
before mounting the front module. For example, touching the wall could help on
Electro-Static discharge (ESD).
9. Switch on power to the heating/cooling system. The thermostat should be
powered up as well.
See Mounting instructions for more information.
● Observe local codes regarding wire type, overcurrent protection and ground.
● For HVAC systems with a single transformer, the RH-RC jumper must remain
in place. If separate transformers are used for heating and cooling systems,
remove the RH-RC jumper.
● AC 24 V supply line must have a circuit breaker with a rated current of no more
than 4 A. The total current rating should not exceed 3.3 A. For AC 24 V US
installations, use Class 2 transformers.
● Disconnect from power supply before removing the front module and the
mounting plate.
Wiring