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Introduction
The Symbio™ 700 installed on Precedent™ rooftop units is a factory installed and programmed
controller, providing digital control and protection of the equipment.
The Symbio 700 has two model options:
• Standard Configuration — provides advanced troubleshooting and access to the Symbio Service
and Installation mobile app.
• Advanced Configuration — Building Automation System interface via BACnet® (ANSI/ASHRAE
Standard 135-2016), Modbus™, Air-Fi®, or LonTalk®.
The Symbio 700 offers multiple equipment configuration options regardless of controller model. The
Precedent rooftop unit can be configured as the following system types:
• Conventional Thermostat Control (T-Stat)
• Space Temperature Control Constant Volume (CVZT)
• Space Temperature Control Single Zone Variable Air Volume (VVZT)
• Variable Volume Discharge Air (VVDA)
These configurations can be used with standard cooling systems.
This guide provides information about the configuration, control capabilities and troubleshooting of the
Precedent system with Symbio 700 controller.
Additional Documentation
• BAS-SVN043*-EN: Quick Start Guide, Symbio™ Service and Installation App
• BAS-SVU054*-EN: User Guide, Symbio™ 700
• BAS-SVP062*-EN: Integration Guide, BACnet® and Modbus™ Integration to Precedent Packaged
Rooftop Air-Conditioners with Symbio™ 700 Controls
• BAS-SVP063*-EN: Integration Guide, LonTalk® Integration to Precedent Packaged Rooftop Air-
Conditioners with Symbio™ 700 Controls
• RT-SVX070*-EN: Installation, Operation, and Maintenance, Packaged Rooftop Air Conditioners,
Precedent™ Cooling and Electric Heat, Standard Efficiency
• RT-SVX071*-EN: Installation, Operation, and Maintenance, Packaged Rooftop Air Conditioners,
Precedent™Cooling and Gas/Electric, Standard Efficiency
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