Features  

• Uses Echelon® LONWORKS® network (E-Bus) protocol. 

• Free Topology Transceiver (FTT) high speed 78 kilobit communications network. 

• Compliant with VAV Device Object Type number 8010 functional LONMARK® profile. 

• Capable of stand-alone operation, but can also use E-Bus network communications. 

• 120 controllers per Q7750A Excel 10 Zone Manager. 

• Easy user access to the E-Bus network communications jack. 

• Designed for Pressure Independent or Pressure Dependent Single or Dual Duct Variable Air Volume (VAV) and Constant Volume Air Terminal Unit control. 

• Uses a Microbridge air flow sensor with patented dual integral restrictor design. 

• Easy user access to air flow sensor inputs. 

• Provides Proportional Integral Derivative (PID) temperature control. 

• Energy saving setpoint reset for electrical demand limit control. 

• Floating or modulating hot water or three-stage electric heat. 

• Series or induction fan control. 

• Provides patented nonlinear floating algorithm for velocity control loops. 

• Individual zone pressurization for supply and exhaust control. 

• Factory configured via EEPROM with critical user parameter default values. 

• Supports motion sensor interface for enhanced energy savings. 

• Supports Terminal Regulated Air Volume (TRAV) concept. 

• Supports pressurize and depressurize, night purge, and morning warm-up sequences. 

• Both plastic housing and controller module wiring subbase are UL 94-5V rated (W7751D,F).