Biddle CA2 Manual do Utilizador descarregar pdf (Página 8)

3. CHIPS-technology for sufficient heat

and strength

With changing weather conditions and insufficient attention to or knowledge of an

air curtain, it still frequently occurs that an air curtain is not properly set. It blows

often too strong or too weak, with an outlet temperature that is too high or it is not

switched on at all. As a result there is energy loss, little comfort and an unnecessarily

highnoiselevel.Exactlybecauseaircurtainsareintendedtosaveenergyand

provide a high degree of comfort, Biddle has developed the fully automatic and

energy saving CHIPS-technology.

The CHIPS-technologyadjuststheoutlettemperatureandthestrength(outletwidthx

airspeed)oftheairstreamtothechangingconditionsroundthedoorwayindependent

of each other. The technology has been translated into a fully automatic control for

Biddle comfort-air curtains: CHIPS-control.

Dynamics of an air curtain

The diagram below clarifies the operation of the CHIPS-technology in various

conditions.

Air curtain with speed control: strength and heat are linked to one

another. When the fan speed of the air curtain is stepped up, manually or

automatically, by, for instance, a thermostat heat and strength are adjusted

simultaneously.Sinceinmanycaseseitherwillbesufficienttoreachtheideal

situation, this ideal situation is seldom achieved with a speed regulation.

Model CA

with CHIPS-technology: strength and heat operate

independently. The air curtain with CHIPS-control does reach the ideal situation

under any changing circumstances, automatically and continuously. Based on

climatologic conditions round the doorway the correct setting of the air curtain is

selected. The ideal strength is determined by the sensor of the outside temperature,

a control algorithm and the ideal heating by the built-in room temperature setting.

CHIPSmeans: Corrective Heating

and ImpulsePrediction System

Heating

too weak

too little sufficient too much

sufficient

too strong

= automatic CHIPS-Controlspeed controller

Strength

Situation 5 is the optimal situation:

Sufficientstrengthtoreachthefloor

(optimumclimateseparation)andsufficient

heating to heat incoming air to the indoor

temperaturerequired(comfort).

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Biddle CA2 Manual do Utilizador Página 8