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Frequently Asked Questions
How is this different from a thermostat?
It does not decide anything itself.
It presents a reading and accepts a request.
A controller elsewhere holds the strategy.
A thermostat decides locally and works alone.
A room unit does nothing without its controller.
The distinction is operational, not cosmetic.
What does routing through a controller allow?
The building strategy can use the input.
Optimum start and night setback become possible.
Occupancy scheduling can override local requests.
Demand-based ventilation can respond to it.
A standalone thermostat participates in none of that.
That is the reason for the extra complexity.
How much adjustment should occupants get?
Less than a full range, usually.
Full adjustment causes setpoint drift across a floor.
Neighbouring rooms then conflict.
A few degrees either side satisfies most people.
A timed override handles out-of-hours use.
It is a design decision, not a product feature.
Where should it be mounted?
Where the reading represents the occupied zone.
Away from direct sun and supply air.
Off external walls and away from heat sources.
At a representative height.
A poorly placed unit misreads the room permanently.
Position is not an installer's convenience.
Should some rooms have display-only units?
Often, and it is worth considering deliberately.
Circulation spaces need no adjustment.
Shared areas produce competing requests.
Adjustable units suit rooms with an accountable occupant.
Display-only still shows conditions.
Mixing types across an estate is normal.
What if it also measures humidity or carbon dioxide?
It becomes part of the ventilation strategy.
Carbon dioxide drives demand-based ventilation.
Position then matters even more.
A sensor near a door reads the corridor.
One behind a monitor reads the equipment.
Site it for the space, not the cable route.
What happens when the network is down?
The unit stops influencing anything.
Well-designed controllers fall back to a default.
Plant continues on a safe strategy.
Occupant adjustment is simply unavailable.
Confirm that fallback exists.
It is not universal across products.