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

EXCEL 10 W7751H SMART VAV ACTUATOR

Different network configurations (daisy-chain, loop, and star
configurations, or any combination thereof) are possible (see
also Excel 50/500 L

ONWORKS

Mechanisms Interface

Description, EN0B-0270GE51).

The maximum number of nodes per L

ONWORKS

® network

segment is 64.

Approved cable types for L

ONWORKS

cations wiring is Level IV 0.34 mm

® network communi-

2

plenum or non-plenum

rated unshielded, twisted pair, solid conductor wire.

Damper Shaft Mounting

The actuator on the W7751H3007 mounts directly onto the
VAV box damper shaft and has up to 6 Nm of torque, 95
degree stroke, and 90 sec. timing at 60 Hz / 110 sec. timing
at 50 Hz. The actuator is suitable for mounting onto a round
shaft (diameter: 8…16 mm) or a square shaft
(6…13 mm).The minimum VAV box damper shaft length is
40 mm.

The actuator may be mounted in any position (see Fig. 1).

IP40 IP40

360° 360°

Fig. 1. Permissible orientations providing IP40

LonMark™ Functional Profile

The W7751H3007 Controller supports the LonMark™
Functional Profile number 8010 VAV Controller, version 1.0
(see Fig. 2).

Dimensions (H/W/D)

142 x 103 x 76 mm.

Environmental Ratings

Operating Temperature: 0…50°C.

Shipping Temperature: -40…65.5°C.

Relative Humidity

5% to 95% non-condensing.

Hardware

Outputs

VAV Device

Object Type #8010

nviSpaceTemp

nv1

SNVT_temp_p

nviSetPoint

nv2

SNVT_temp_p

nviApplicMode

nv5

SNVT_hvac_mode

nviManOverride

nv6

SNVT_hvac_overid

nviSetPtOffset

nv7

SNVT_ temp_p

nviOccCmd

nv8

SNVT_occupancy

nviEmergCmd

nv9

SNVT_hvac_emerg

nviBoxFlow

nv10

SNVT_ flow

nviEnergyHoldOff

nv11

SNVT_switch

nviFanSpeed

nv12

SNVT_switch

nviCO

2

nv13

SNVT_ ppm

nviHeaterOverid

nv14

SNVT_switch

nviDuctInTemp

nv15

SNVT_temp_p

nc49 - Send Heartbeat (mandatory)
nc60 - Occupancy Temperature

Setpoints (mandatory)

nc48 - Maximum Receive Time (opt.)

nc52 - Minimum Send Time (opt.)
nc17 - Location (optional)

nc46 - Duct Area (optional)

Mandatory
Network
Variables

Optional
Network
Variables

Configuration Properties

nc54 - Minimum Flow (mandatory)
nc51 - Maximum Flow (mandatory)
nc55 - Minimum Flow for Heat (opt.)
nc56 - Minimum Flow Standby (opt.)

nc57 - Nominal Flow (optional)
nc66 - VAV gain (optional)

Manufacturer

Defined
Section

Hardware

Input

Fig. 2. Functional profile of LonMark™ VAV object details

(variables not implemented in the W7751H3007 are

grayed, or are in bold print in Configuration Properties).

nvoSpaceTemp

nv3

SNVT_ temp_p

nvoUnitStatus

nv4

SNVT_hvac_status

nvoEffectSetPt

nv16

SNVT_ temp_p

nvoFlowControlPt

nv17

SNVT_ flow

nvoBoxFlow

nv18

SNVT_ flow

nvoTerminalLoad

nv19

SNVT_lev_percent

nvoEnergyHoldOff

nv20

SNVT_switch

M13048

3

EN0B-0483GE51 R0907

Vibration

V2 level.

Corrosion

Office environment.

Approval Bodies

The W7751H3007 is listed under UL 916 (E87741) and is
also listed under cUL (E87741). The W7751H3007 meets
FCC part 15 Class B requirements. The W7751H3007
conforms to requirements per European Consortium
standards EN50081-1 (CISPR 22 Class B) and EN 50082-1
(IEC 801-2, IEC 801-3 and IEC 801-4) for CE mark.

Accessories

• Excel 10 T7460, T7560 Wall Modules.

• LF20 Air Temperature Sensor.

• 209541B Excel 10 Termination Module.

• XAL-Term or 209541B Excel 10 Termination Module.

Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative:

Automation and Control Solutions

Honeywell GmbH
Böblinger Straße 17
71101 Schönaich
Germany
Phone: [phone]
Fax: [phone]
http://ecc.emea.honeywell.com

Subject to change without notice. Printed in Germany

EN0B-0483GE51 R0907