Table of Contents
Summary
The BAYSENS800 is a touchscreen programmable zone sensor for Symbio 700- and Symbio 800-controlled units. This document is specific to Symbio 700 units.
💡 Note:
- The BAYSENS924 will not work on the Symbio 700; you need an X13791009001 (BAYSENS800).
- You also need an Advanced Symbio 700 controller
- If the Unit does not have an Advanced Symbio 700, the options are:
- Replace with MOD04044
- Purchase FRW00001 Advanced License from an authorized Parts center
- Digit 21 of the Odyssey and Precedent units indicates the Symbio board license version
- Digit 21 = 1 - Advanced license w/ BACnet
- Digit 21 = 2 - Advanced license w/ Lon
- Digit 21 = 3 - Advanced license w/ AirFI
- BAYSENS800 will only work with BACnet communications; Lon and AirFi adapters must be disconnected, and power cycled
🛑 Important:
This sensor can only be used with Standalone HVAC equipment. Later versions of the BAYSENS800 (BAYSENS800AB) can be added to a BAS for monitoring purposes only.
Not designed for use with a MZVAV or VVDA configured Symbio 700 units.
Wiring
Basic Wiring to Symbio 700 (UC)
| Wall Sensor Input Description |
|---|
| A: 24V |
B: 24V Ground |
C: BACnet + |
| D: BACnet - |
| E: BACnet Reference (GND) |
| F: Demand Shed |
| G: Motion Sensor / Thermistor |
| H: Input Common |
2-conductor Wire
- Use stranded 18-2 wire from A-(5) to J19-6 & B-(6) to J19-7
Communication Wire
Use the correct communication wire to ensure reliable communication between the zone sensor and the HVAC equipment. (C-(13), D-(14) to J17-1, J17-2)
-
Suggested Supplier: Windy City Wire:
- Plenum rated P/N: 043005AL
- Non-plenum rated P/N: 108760
-
Other wire may be used if it conforms to the following physical characteristics:
- Twisted pair (2-conductor) plus shield.
- Characteristic Impedance: 100 and 130 ohms.
- Distributed capacitance between conductors: < 100 pF/m.
- Distributed capacitance between conductor and shield:
< 200 pF/m. - Foil or braided shield is acceptable.
- Wire diameter: 22 to 18 AWG.
Wiring with Remote Sensor(s)
Wiring a remote sensor can be done with either a sensor connected to the Symbio 700 (preferred) or to the BAYSENS800 Wall Sensor. The wall sensor must be programmed for Remote or Wired for the type of remote sensor installed.
Sensor averaging must be done with 4, 9 , 16, or 25 sensors.
Visit the following article for more information: How to average multiple zone temp sensors?
Wiring with Single Remote Sensor (BAYSENS077*) connected to Symbio 700 (UC)
Wiring with Four Remote Sensors (BAYSENS077*) for Sensor Averaging connected to Symbio 700 (UC)
Wiring with Single Remote Sensor (BAYSENS077*) connected to the BAYSENS800
Wiring with Four Remote Sensors (BAYSENS077*) for Sensor Averaging connected to the BAYSENS800
Symbio 700 Configuration
Verify the unit has an Advanced UC module
- How do I know what version of controller I have?
- The easiest way to determine which version you have is by connecting to the controller with the Symbio Service and Installation App. The app will show the license type on the Home Page. The app must be version 1.0.2 or newer to see this information.
- Once the controller reboots, reconnect to the controller using the Symbio Service and Installation App. Navigate to Home > Show More. The License Type will show Basic or Advanced.
- If you have a Basic License, you will need to purchase the license upgrade from Trane Parts and install it into the Symbio 700.
Set Symbio 700 UC rotary dials to 001
BAYSENS800 Setup in the Phone App:
On the Phone App go to Settings < System and set Arbitration Method Request to Enable External BAS Control
In Settings < View Configuration < Edit set Space Controller Type to Single Setpoint Zone Sensor
- Verify SYSTEM TYPE IS CVZT or VVZT (BAYSENS800 is not compatible with VVDA)
In Tools < Protocol Configuration < Protocol set to BACnet MS/TP - 76800, then SAVE
BAYSENS800 Configuration
To enter configurations
Password to enter configuration mode 4017
Network Settings
The network settings need to be set correctly for proper communication with the Symbio 700. The settings below are for a standalone setup with the BAYSENS800. If the BAYSENS800 is used on a BACnet network, the sensor and unit address will need to be unique to each device.
BAYSENS800 Sensor (old firmware version with 2 network pages):
- Sensor Address = 2
- Unit address = 1
- Baud rate = 76,800
BAYSENS800 Sensor (new firmware version with 3 network pages):
- Network Page 1
- Sensor Address = 2
- Baud rate = 76800
- Network Page 2
- Sensor device ID set to 0000002
- Network Page 3
- Unit device ID set to 0000001
Make sure to hit the next button (right arrow) to save changes
Configuration for Remote Sensor wired to Symbio 700 (UC)
- Access Configuration Page 2
-
Set Temp. sensor to Remote
Configuration for Remote Sensor wired to BAYSENS800
- Access Configuration Page 2
- Set UC17 config to Temp
- Set Temp. sensor to Wired
Literature
- For more information about the sensor configuration, click the e-library symbol for the latest version of the installation instructions.
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.