Symbio 700 - Connecting a BAYSENS800 to the Unit Controller Module
Summary:
The BAYSENS800 is a touch screen 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 authorized Parts center
- Digit 21 of Odyssey and Precedent units indicate 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 only 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.
Wiring:
| A: 24VAC | D: BACnet - |
| B: 24V Ground | E: Comm. Shield |
| C: BACnet + |
3-conductor Wire:
Use stranded 18-3 wire from A, B, and C to J19-6, J19-7, and J21-9.
Communication Wire:
Use the correct communication wire to ensure reliable communication between the zone sensor and the HVAC equipment. (A and B to J17-1 and 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.
Symbio 700 Configuration:
BAYSENS800 Setup in the Phone App:
- Verify the unit has an Advanced UC module
- Set Symbio 700 UC rotary dials to 001
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 Sensor (old firmware version with 2 network pages):
- Set the temp sensor to internal
- Sensor Address = 2
- Unit address = 1
- Baud rate = 76,800
- Password to enter configuration mode 4017
BAYSENS800 Sensor (new firmware version with 3 network pages):
- Set the temp sensor to internal
- 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
- Password to enter configuration mode 4017
For more information about the configuration Click the e-library symbol for the latest version of the installation instruction.
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.