Installation
Wiring an SPT sensor
The VAV Zone Controller is connected to a wall-mounted space temperature sensor to monitor room temperature.
An i-Vu Open Control System offers the following SPT sensors:
Sensor
Part #
Features
SPT Standard
SPS
•
Local access port
•
No operator control
SPT Plus
SPPL
•
Slide potentiometer to adjust setpoint
•
MANUAL ON button to override schedule
•
LED to show occupied status
•
Local access port
SPT Pro
SPP
•
LCD display
•
MANUAL ON button to override schedule
•
WARMER and COOLER buttons to adjust setpoint
•
INFO button to cycle through zone and outdoor air temperatures,
setpoints, and local override time
•
Local access port
SPT Pro Plus
SPPF
•
LCD display
•
MANUAL ON button to override schedule
•
WARMER and COOLER buttons to adjust setpoint
•
INFO button to cycle through zone and outdoor air temperatures,
setpoints, and local override time
•
MODE button to cycle through custom programmed modes
•
FAN button to select fan AUTO/ON
•
Local access port
You wire SPT sensors to a controller's
Rnet
port. An Rnet can consist of any of the following combinations of
devices wired in a daisy-chain or hybrid configuration:
•
1 SPT Plus, SPT Pro, or SPT Pro Plus
•
1–4 SPT Standards
•
1–4 SPT Standards, and 1 SPT Plus, SPT Pro, or SPT Pro Plus
•
Any of the above combinations, plus a BAC
view
®
6
device, but no more than 6 devices total
NOTE
If the Rnet has multiple SPT Standard sensors, you must give each a unique address on the Rnet. See the
Carrier Sensors Installation Guide
.
Rnet wiring specifications
NOTE
Use the specified type of wire and cable for maximum signal integrity.
Description
4 conductor, unshielded, CMP, plenum rated cable
Conductor
18 AWG
Maximum length
500 feet (152 meters)
Recommended coloring
Jacket: White
Wiring: Black, white, green, red
UL temperature rating
32–167°F (0–75°C)
16
VAV Zone Controllers
