Honeywell W7751H3007 SPECIFICATION DATA
Excel 10
W7751H3007 SMART VAV ACTUATOR
HONEYWELL EXCEL 5000 OPEN SYSTEM
GENERAL
The W7751H3007 Smart VAV Actuator consists of a factoryintegrated Variable Air Volume (VAV) Box Controller and a
90-second Direct-Coupled Actuator, and belongs to the Excel
10 family product line. The W7751H3007 provides pressureindependent air flow control and pressure-dependent damper
control. Generally speaking, VAV systems only provide cool
air to the zones. The W7751H3007 provides two additional
outputs which control a fan or VAV box reheat coils. The
heaters can be staged electric or modulating hot water
heaters. Supply and exhaust pressurization control are
provided on a zone basis.
SPECIFICATION DATA
FEATURES
• Uses Echelon® LonWorks® network protocol.
• Free Topology Transceiver (FTT) high-speed 78 kbaud
communications network.
• Compliant with VAV Device Object Type number 8010
functional LonMark™ profile.
• Capable of stand-alone operation.
• Designed for pressure-independent or pressuredependent 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.
• For use in conjunction with floating hot water, twostage electric, or modulating hot water heaters.
• Provides patented non-linear 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 warm-up sequences.
• The W7751H3007 mounts directly onto VAV box
damper shaft and has up to 6 Nm torque, 95 degree
stroke, and 90 sec. timing at 60 Hz / 110 sec. timing at
50 Hz.
® U.S. Registered Trademark EN0B-0483GE51 R0907
Copyright © 2007 Honeywell Inc. • All rights reserved
EXCEL 10 W7751H SMART VAV ACTUATOR
DESCRIPTION
The W7751H3007 Smart VAV Actuator consists of a factoryintegrated Variable Air Volume (VAV) Box Controller and a
90-second Direct-Coupled Actuator, and belongs to the Excel
10 family product line. The W7751H3007 provides pressureindependent air flow control and pressure-dependent damper
control. Generally speaking, VAV systems only provide cool
air to the zones. The W7751H3007 provides two additional
outputs which control a fan or VAV box reheat coils. The
heaters can be staged electric or modulating hot water
heaters. Supply and exhaust pressurization control are
provided on a zone basis.
Control techniques supported (heating and cooling):
— Up to two stages of electric or hot water heat.
— Floating hot water heat.
— Pulse-width modulated (PWM) heat.
— Floating damper output.
Additional control features:
• Occupied/Normal hours or if bypass invoked from a wall
module during unoccupied hours.
• Unoccupied/Off hours.
• Supply and exhaust pressurization control are provided
on a zone basis.
• Occupancy sensor override and window open override
(only via the network).
SPECIFICATIONS
Model
The W7751H3007 Smart VAV Actuator assembly is fieldmounted to the VAV box damper shaft similar to the mounting
of a standard actuator. Field wiring (0.34 to 2.0 mm
through the grommets and connects to screw terminals
located inside the detachable wiring box.
Input/Output
The W7751H3007 is a NEC Class 2 rated device. This listing
makes sure that the power consumed by the W7751H3007 or
the devices it directly controls must be limited to a sum-total
of 100 VA. Any hardware driven by the Triac outputs must
have a minimum current draw, when energized, of 25 mA at
20 Vac and a maximum current draw of 400 mA at 30 Vac.
Inputs:
• Space temperature sensor.
• Remote wall module setpoint input or duct air temperature
sensor.
• Remote wall module override.
• Air flow sensor.
2
) passes
Outputs:
• Internally wired VAV actuator (floating +).
• Internally wired VAV actuator (floating -).
• Floating heat (+) or stage 1 heat.
• Floating heat (-) or stage 2 heat.
Power Supply
24 Vac with a valid range of 20 to 30 Vac at 50/60 Hz.
Power Consumption
6 VA maximum at both 50 and 60 Hz.
Differential Pressure Range
0 to 0.5 kPa (max.) for the onboard flow sensor.
Maximum Duct Area
0.372 m2 (4 ft2).
The maximum flow setpoint must be chosen so as to ensure
that the duct velocity is not less than 1.016 m/s (200 ft/min)
and not greater than 17.78 m/s (3,500 ft/min).
Noise Emissions
Max. noise emissions of 35 dB.
IP Protection Class
IP40.
Specified Sensing Temperature Range
20 kΩ NTC sensor temperature range of 7 to 37°C with an
allowable control setpoint range from 10 to 32°C when
initiated from the network and 13 to 29°C when configured
and connected to a T7460 Wall Module, T7560 Digital
Display Wall Module, or LF20 Air Temperature Sensor.
LonWorks Service LED
1. OFF = no power to the processor.
2. Continuous ON = processor is in the initialized state.
3. Slow blink = controlling, normal state.
4. Fast blink = the W7751H3007 has an alarm condition.
Communications
The W7751H3007 uses an FTT transformer-coupled
communications port.
ONWORKS
The L
the possibility of installation errors due to miswiring.
network is insensitive to polarity, eliminating
EN0B-0483GE51 R0907
2
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