Installation - Baxi uSense Installation Manual

4. Installation

The gateway
When connecting the gateway to a combi boiler that has an existing
programmer and/or thermostat, it is essential that the function of all
wiring is established prior to work. Make sure you identify the L (live),
N (neutral), E (earth), common and call for heat switched live correctly
before connecting. Incorrect wiring will result in damage to the
gateway, room unit and boiler which will invalidate the warranty.
Fix the gateway in position
Determine the position of the gateway. It should be close to either
the boiler or control system junction box. Make sure there is enough
space around the gateway for installation and maintenance,
including screwdriver access.
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