Honeywell Inc.
Excel 10 W7751H Smart VAV Actuator. CSI 3-Part Specifications.
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Excel 10
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SPECIFICATION DATA |
FEATURES
- Uses Echelon® LonWorks® network (E-Bus) protocol.
- Free Topology Tranceiver (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.
- Designed for Pressure Independent or Pressure Dependent Single or Dual Duct Variable Air Volume (VAV) 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.
- Floating hot water, two-stage electric or modulating hot water heat.
- 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, via network, for enhanced energy savings.
- Supports Terminal Regulated Air Volume (TRAV) concept.
- Supports pressurize and depressurize, night purge, and morning warmup sequences.
- Actuator included in W7751H mounts directly onto VAV box damper shaft and has up to 35 lb. in. torque, 90 degree stroke, and 90 sec. timing at 60 Hz.
- Both controller housing and actuator are UL plenum rated.
GENERAL The W7751H Smart VAV Actuator is a factory-integrated Variable Air Volume (VAV) Box Controller and a 90 second ML6161B Direct-Coupled Actuator in the Excel 10 family product line. This VAV Box Controller provides Pressure Independent air flow control and Pressure Dependent damper control. VAV systems generally provide cool air only to the zones. The W7751H Controller provides two additional outputs that control a fan or VAV box reheat coils. The heaters can be staged electric or modulating hot water. Supply and exhaust pressurization control are provided on a zone basis.
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DESCRIPTION The W7751H Smart VAV Actuator is a factory-integrated Variable Air Volume (VAV) Box Controller and a 90 second ML6161B Direct-Coupled Actuator in the Excel 10 family product line. This VAV Box Controller provides Pressure Independent air flow control and Pressure Dependent damper control. VAV systems generally provide cool air only to the zones. The W7751H Controller provides two additional outputs that control a fan or VAV box reheat coils. The heaters can be staged electric or modulating hot water. Supply and exhaust pressurization control are provided on a zone basis. Control techniques supported (heating and cooling): |