Viconics VT8300 Low Voltage Application Guide Manuel d'utilisateur télécharger pdf (Page 13)

Fan Coil Unit Controller SeriesApplication Guide

028-0444-01 www.viconics.com | sales@viconics.com February 2015

Tx/Rx

7 Vdc

Com

RUI 1

SCom

RBI 2

OCC -

7Vdc

RELAY

COIL

SC3514E5000

VTR8300

BACnet+

BACnet-

BACnet REF

UI 16 - BI1

UI 17 - BI2

SCom

Tx / Rx

7 VDC

Com

Sequence of Operation and Wiring

Occupied Mode

Setpoints revert to those deﬁned by occupied cooling and heating.

The occupancy output opens fresh air damper to minimum position.

Stand-by Mode (only available when PIR motion detector

sensor is used)

Setpoints revert to those deﬁned by stand-by cooling and heating.

Unoccupied Mode

Setpoints revert to those deﬁned by unoccupied heating and

cooling. The fresh air damper closes.

Occupied Override Mode

System reverts to occupied mode for duration determined by

“ToccTime” parameter.

On Call for Cool

If supply water temperature is less than 24°C (75F), cooling valve

opens to maintain room temperature, else the valve closes.

On Call for Heat

If supply water temperature is greater than 25°C (77F), heating valve

opens to maintain room temperature, else the valve closes.

Supply Air Sensor

Only used for monitoring. Shows automatically if sensor is

connected.

Options

• Wireless adapter modules for BACnet models are available.

(see Appendix B for network wiring).

• Remote wall mount or return duct sensor ready.

• Binary inputs can be conﬁgured to control occupancy via

door or window contact, remote motion sensor, remote night

setback, or provide alarms for service or ﬁlter monitoring.

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Viconics VT8300 Low Voltage Application Guide Manuel d'utilisateur Page 13

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