C2N-RTHS
Temperature and Humidity Sensor
Installation Guide
Wiring
Make the necessary connections as called out in the illustration. Apply power after all
connections have been made.
CAUTION
: Insufficient power can lead to unpredictable results or damage to the
equipment. Use the Crestron Power Calculator to help calculate how much power is
needed for the system (www.crestron.com/calculators).
NOTE
: When wiring the Cresnet network, consider the following:
• Use Crestron Certified Wire.
• Use Crestron power supplies for Crestron equipment.
• Provide sufficient power to the system.
Wiring the C2N-RTHS
Description
The Crestron
®
C2N-RTHS is a wall-mounted temperature and relative humidity sensor that
communicates directly with any Crestron control system via the Cresnet
®
control network.
One-piece mounting makes the C2N-RTHS simple to install. The 1-1/2 in (38.1 mm)
diameter face protrudes just 1/8 in (3.2 mm) from the wall surface and is easily painted or
wallpapered to blend into the wall surface.
C2N-RTHS Specifications
Installation
NOTES
: Ensure the installation location is not close to a heat or humidity source and is
away from direct sunlight, skylights, and windows. When mounting the sensor outdoors,
do not place in direct sunlight, and do not place where the sensor will be directly
exposed to precipitation. Sensors are suitable for mounting in dry or damp locations as
defined by the National Electrical Code.
• Install and use this product in accordance with appropriate electrical codes and
regulations.
• A licensed electrician should install this product.
• Mount sensors on a vibration-free surface.
NOTE
: Before using the C2N-RTHS, ensure the device is using the latest firmware.
Check for the latest firmware for the C2N-RTHS at www.crestron.com/firmware. Load
the firmware onto the device using Crestron Toolbox™ software.
Complete the following procedure to install the C2N-RTHS:
1. Locate an area on the wall that is free of miscellaneous wiring and studs.
2. Make a small hole near the center of the designated mounting site to verify that the
location is suitable.
3. Drill or cut a 1 in (26 mm) diameter circular hole in the wall at the desired position.
4. Route the Cresnet wires to the sensor. Use the four wire nuts included to connect
the wires (red to red, white to white, blue to blue, and black to black).
Cresnet Wiring for the C2N-RTHS
Additional Resources
Visit the product page on the Crestron website (www.crestron.com)
for additional information and the latest firmware updates. Use a QR
reader application on your mobile device to scan the QR image.
Black Ground
Red 24 V
White Y
Blue Z
Wire nuts
Cresnet
wires
Pigtail wires
from sensor
Mounting clips
1 in (26 mm) hole
C2N-RTHS Front and Angled View
NOTE
: The miniature setup button and red LED are used for setting the network ID
for the initial configuration or when the device is being added or replaced. They are
also used for touch-settable ID (TSID).
Mounting clips
Setup
button
Red
LED
C2N-RTHS Rear and Angled Views
10 in
(254 mm)
5. Press fit the sensor into the hole; the clips on either side of the sensor hold it in
place.
NOTE
: The face of the sensor may be painted or wallpapered to match the wall.
Ensure that paint does not enter (or that wallpaper does not cover) the perimeter
gap or the holes for the setup button and LED.
SPECIFICATION
DETAILS
Measuring Range
Temperature
-40º to 176 ºF (-40º to 80 ºC)
Humidity
0% to 100% RH
Output Resolution
0.1 ºF (0.1 ºC); 1% RH
Accuracy
±1.0 ºF (0.5 ºC); 5% RH
Temperature Accuracy
Over Full Range
±0.9 °F (0.5 °C)
At Room Temperature
+0.2/-0.7 °F (+0.1/-0.4 °C)
Humidity Accuracy
±5%
Connection
~10 in (~25 cm) 4-wire pigtail;
Connects to Cresnet control network
Power Requirements
Cresnet Power Usage
0.25 W (0.01 Amps @ 24 Vdc)