Viconics VT8300 Low Voltage Application Guide Instrukcja Użytkownika Pobierz pdf (Strona 60)

Fan Coil Unit Controller SeriesApplication Guide

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

PIR can maximize your

energy saving from

10-30% by adjusting

temperature set points in

unoccupied zones during

scheduled periods.

Typical Savings of 10-30%

0 2

4 6 8 10 12 14 16 18 20 22 24

Time of Day (EST)

Energy Usage (KWh)

10%

20%

30%

40%

50%

Saving Percentage

Typical Consumption PIR Thermostat Consumption Savings

APPENDIX A - PASSIVE INFRA-RED SENSOR SPECIFICATIONS

Initially, the Controller is in Stand-by mode and Stand-by setpoints are used for the Controller. When the Passive

Infra-Red (PIR) sensor detects motion, the Occupancy status switches to Occupied and the Stand-By Time timer

is reset. The Occupied setpoints are used for this operation.

If no motion is detected in the room for the entire Stand-By Time duration (adjustable parameter), the room

switches to Stand-by mode and Stand-by setpoints are used. While in Stand-by mode, if no motion is detected

for the entire Unoccupied Time period (adjustable parameter), the room switches to Unoccupied mode and

uses its Unoccupied setpoints. While in Stand-By or Unoccupied mode, any motion switches the room back to

Occupied mode.

Passive Infra-Red Sensor Sequence of Operation

Energy Savings

Typical Detection Pattern for PIR Lens

Horizontal Angles (Typical)

Transverse motion: 4-5 ft/s / 1.5 m/s

Recommended installation

height for PIR sensor:

4 - 5 ft. / 1.2-1.5 m

Sensor Ranges

A = 20 ft. / 6.1 m

B = 14 ft. / 4.3 m

C = 11 ft. / 3.4 m

Center

Vertical Angle (Typical)

Center

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