Product Overview

VT8600 Rooftop, Heat Pump and Indoor Air Quality ControllerApplication Guide
12
Viconics Technologies Inc. | 9245 Langelier Blvd. | St.-Leonard | Quebec | Canada | H1P 3K9 | Tel: [phone] | Fa x: ( 514) 321-4150
028-6085-01 www.viconics.com | [e-mail] April 201
© 2015 Viconcis Technologies. All rights reserved.
The PIR can maximize
your energy saving from
10-30% by relaxing
temperature set points in
unoccupied zones during
scheduled periods.
Typical Savings of 10-30%
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
0 2
4 6 8 10 12 14 16 18 20 22 24
Time of Day (EST)
Energy Usage (KWh)
0%
10%
20%
30%
40%
50%
Saving Percentage
Typical Consumption PIR Thermostat Consumption Savings
APPENDIX A PASSIVE INFRA-RED (PIR) MOTION DETECTOR COVER SPECIFICATIONS
Initially, the controller is in Stand-by mode. Stand-by setpoints are used at the controller. As soon as the
PIR detects motion, the Occupancy status switches to Occupied and the Stand-By Time timer is reset. The
Occupied setpoints are used.
If no motion is detected in the room for the entire Stand-By Time duration (adjustable parameter), the room then
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 will switch the room back
to Occupied mode. For this reason, avoid installing PIR sensors near heat vents or other sources of moving
warm air in order to avoid false detections.
PIR cover sequence of operation
Typical Detection Pattern for PIR Lens
Energy savings
20
O
20
O
20
O
20
O
40
O
A
B
B
C
C
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
30
O
Vertical Angle (Typical)
Center