Viconics VT8600 User Interface Guide Manual de usuario descargar pdf (Pagina 23)

VT8600 Series

User Interface Guide

Viconics Technologies Inc. 9245 Langelier Blvd. Saint-Leonard, Quebec, Canada, H1P 3K9 I +1 514 321 5660

028-0441-00 www.viconics.com November 2014

PARAMETER DETAILS SCREEN 5/9

Conﬁguration Parameters Default Value Signiﬁcance and Adjustments

Heat stages

Number of heating stages.

Applicable to 2 stage models only

Default value: 2 stages

Will revert the operation of 2 stages Terminal Equipment Controller to single

stage operation only when the second heating step is not needed.

1 or 2 stages

Cool stages

Number of cooling stages

Default value: 2 stages

Will revert the operation of 2 stage Terminal Equipment Controller to single

stage operation only when the second cooling step is not needed.

1 or 2 stages

Econo. conﬁg

Economizer conﬁguration

Default value: Off

Controls the activity of the economizer functionality

On Economizer is activated

Off Economizer is deactivated

ChngOvr Sp

Changeover setpoint

Default value: 55 °F (13.0 °C)

In Cooling mode.

The outside air temperature value at which the cooling will be switched over

from mechanical (compressor) to free cooling (economizer)

14 to 70 °F (-10.0 to 21.0 °C)

Mech cooling

Mechanical cooling allowed

Default value: Off

In Cooling mode.

Allows the operation of the mechanical cooling if the free cooling (economizer)

cannot maintain the cooling setpoint.

Off Typically applies when the MS (mixed air temperature sensor) is installed

after the mechanical cooling refrigeration coils. In this case, mechanical cooling

will never operate at the same time as free cooling.

On Typically applies when the MS (mixed air temperature sensor) is installed

before the mechanical cooling refrigeration coils in the mixing plenum. In this

case, mechanical cooling is allowed when the free cooling (economizer opera-

tion) cannot maintain the cooling setpoint.

Off or On

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