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INSTALLATION & APPLICATION GUIDE
Room Temperature Sensor
RTS-20xxx (Rev 3.0)
Document Edition 2.3
Product Description
Delta's Room Temperature Sensors are stylized,
wall mountable devices used to provide remote
room temperature sensing to Delta's ORCA
system. The RTS-20 comes with a precision
temperature sensor and uses the durable and
attractive plastic housing of Delta's BACstat II™.
Options for this device include a RJ-11 service
port and an Occupancy Override Push-button and
Setpoint Adjustment Thumb Wheel.
Room Temperature Sensors are ideal for providing
remote temperature sensing, occupancy override
for room schedule control, and remote network
access points.
Contents
MODEL NUMBERS ............................................................................................................. 2
PACKAGE CONTENTS ...................................................................................................... 2
OTHER RELEVANT DOCUMENTS................................................................................. 2
PRODUCT SPECIFICATIONS........................................................................................... 3
IMPORTANT INFORMATION.......................................................................................... 4
JUMPERS .............................................................................................................................. 5
WIRING DIAGRAM ............................................................................................................ 6
BOARD LAYOUTS............................................................................................................... 7
MOUNTING .......................................................................................................................... 9
POWER (ONLY RTS-20JXX) ............................................................................................. 9
NETWORK & CABLING REQUIREMENTS (ONLY RTS-20JXX) ............................. 9
NETWORK TOPOLOGY (ONLY RTS-20JXX)............................................................. 11
NETWORK COMMUNICATIONS SETUP (ONLY RTS-20JXX) ............................... 11
APPLICATION NOTES..................................................................................................... 12
PROGRAMMING (FOR PUSH BUTTON) ..................................................................... 12
CAUTIONS AND WARNINGS ......................................................................................... 13
Page 1 of 13
Document Edition 2.3
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Summary of Contents for Delta Controls RTS-20 Series
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Page 1: Table Of Contents
INSTALLATION & APPLICATION GUIDE Room Temperature Sensor RTS-20xxx (Rev 3.0) Document Edition 2.3 Product Description Delta’s Room Temperature Sensors are stylized, wall mountable devices used to provide remote room temperature sensing to Delta’s ORCA system. The RTS-20 comes with a precision temperature sensor and uses the durable and attractive plastic housing of Delta’s BACstat II™. -
Page 2: Model Numbers
• Stylized Enclosure for quick mounting • RTS-20xxx (Rev 3.0) Installation Guide Other Relevant Documents • Delta Controls Wiring Guidelines • ORCAview Operator Guide • For Service Tool details see ORCAview Technical Reference Manual (particularly Appendix H in the V3.30 Manual) Page 2 of 13 Document Edition 2.3... -
Page 3: Product Specifications
Delta Controls Product Specifications Temperature • Thermistor: 10,000 ohm @ 77 ºF (25 ºC) • Accuracy: +/- 0.36 ºF from 32 - 158 ºF (+/- 0.2 ºC from 0 - 70 ºC) • Stability: 0.24 ºF over 5 years (0.13 ºC) Connectors •... -
Page 4: Important Information
Room Temperature Sensor RTS-20xxx (Rev 3.0) Installation & Application Guide Important Information The Room Temperature Sensor RTS-20Jxx Service Port may be installed on a BACnet RS- 485 MS/TP or LINKnet network. Note that this does not make the RTS-20Jxx a MS/TP or LINKnet device;... -
Page 5: Jumpers
Delta Controls Jumpers OVERRIDE CONFIGURATION The circuit in which the push-button resides is selectable using the override signal jumper. If the jumper is left in the default THERMISTOR OVERRIDE position, it will short out the separate OVERRIDE terminal on the thermostat. If the jumper is moved to the... -
Page 6: Wiring Diagram
Room Temperature Sensor RTS-20xxx (Rev 3.0) Installation & Application Guide Wiring Diagram The following wiring diagram displays a controller with 3 separate inputs from the sensor: Temperature, Setpoint and Override. In this instance the jumper on the RTS-20JPS should be set to the middle Override position. The controller in this instance has the Temperature connected to Input 1, the Setpoint connected to Input 2 and the Override signal connected to Input 3. -
Page 7: Board Layouts
Delta Controls Board Layouts RTS-20J and RTS-20JPS Connector Posts for optional Setpoint Connector Posts for optional Adjustment Thumb Wheel BACnet MS/TP or LINKnet with Connector Posts for optional Push RTS-20J and RTS20JPS Button Override Connector Posts for optional 24VAC Connector Posts for optional TMP COM SET OVR [+] [−]... - Page 8 Room Temperature Sensor RTS-20xxx (Rev 3.0) Installation & Application Guide RTS-20P, RTS-20S and RTS-20PS Assembled on to the BACstat II top plate RTS-20 Wiring Terminals Assembled on to the BACstat II bottom plate Page 8 of 13 Document Edition 2.3...
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Page 9: Mounting
Delta Controls Mounting The back plate is designed for mounting directly on a standard North American, European or Australian electrical box, but may be mounted in other ways as well. The back plate is screwed into the dry wall or electrical box and the faceplate snaps into place on top. Use the hex screw located on the bottom of the housing to secure the faceplate to the back plate. - Page 10 Room Temperature Sensor RTS-20xxx (Rev 3.0) Installation & Application Guide For more detailed information, including wiring, refer to the Delta Controls Wiring Guidelines. Page 10 of 13 Document Edition 2.3...
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Page 11: Network Topology (Only Rts-20Jxx)
Delta Controls Network Topology (Only RTS-20Jxx) Room Temperature Sensors with a Service Port may be connected to a BACnet RS-485 MS/TP network or to the LINKnet network. Note that this does not make the RTS-20Jxx a MS/TP or LINKnet device, it simply adds a connection point to the network for use with the Service Tool. -
Page 12: Application Notes
Room Temperature Sensor RTS-20xxx (Rev 3.0) Installation & Application Guide Application Notes OPERATION The temperature sensing element and the push-button are on the same circuit. The push- button simply shorts the sensing element causing the temperature to read the highest value set in the scale range of the controller. -
Page 13: Cautions And Warnings
Delta Controls Cautions and Warnings The RTS Room Temperature Sensor is an Electro-statically sensitive device. Proper ESD protection (ground strap) should be used when installing this WARNING product so that damage to the product does not occur. This product conforms to the following UL requirements: •...
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