The premiXengine™ is a gas-air control system consisting of two major components: a new
combustion air fan and field-proven gas valve and venturi, including an optional throttle function.

The system uses a pressurized gas-air control system, where the fan is supplying combustion air only, and gas is mixed downstream of the fan.
The air pressure signal is connected to the fan pressure pick-up point and the gas valve regulator.
The required gas-air ratio is set by offset and throttle adjustment, and the boiler load is controlled by fan modulation.

Fan details

■ Housing material is glass reinforced, dissipative PBT (Polybutylene Terephthalate)
■ Patented shape of the housing optimized for efficient air flow
■ Commutated electronics and dc-motor integrated inside the housing
■ Universal control interface, 3- or 4-wired

Key features and Benefits

■ Slim and shapely design
■ Flexible mounting positions
■ Low weight
■ Low energy consumption
■ Low noise

Mechanical connections without screws!

No screws needed to connect the gas valve, venturi and fan together,
but with quick-connect mounting clip connections.
This opens up a wide range of flexible mounting positions for you!

Pre-adjusted and mounted

■ Honeywell offers the premiXengineTM adjusted on offset and CO2
■ Pre-mounting of gas valve and venturi possible