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恩情難忘:霍尼韋爾W7751H2025/U VAV控制器回饋延續(xù)

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霍尼韋爾W7751H2025/U VAV控制器曾經(jīng)大賣,在霍尼韋爾樓宇自控變風(fēng)量控制VAV系統(tǒng)中曾經(jīng)獨(dú)領(lǐng)風(fēng)騷,風(fēng)光無限,但隨著時(shí)間的流逝,產(chǎn)品的演進(jìn),W7751H2025/U已經(jīng)慢慢退出歷史舞臺(tái),目前只在一些需要備品備件及更換維保的項(xiàng)目中,為了回饋老朋友及老項(xiàng)目,籍此恩情難忘之際,霍尼韋爾W7751H2025/U VAV控制器回饋延續(xù),在2018年10月31日前購買W7751H2025/U VAV控制器,將享受本年度最低優(yōu)惠價(jià)及年末返利紅包100元的特別感恩回饋,活動(dòng)詳情請致電垂詢合作伙伴服務(wù)專線:18520860452,感恩支持!


Overview

W7751B,D & F VAV II Controllers provide pressure independent or dependent air flow control and series and parallel fan control with one and two duct applications. W7751H & J Smart VAV Actuator are VAV Box Controllers with a ML6174B Actuator.

Features


  • Uses Echelon? LonWorks? protocol.

  • W7751B,D,F use Free Topology Transceiver (FTT) networks and are compliant with VAV device object type number 8010 functional LonMark? profile.

  • Energy saving setpoint reset for electrical demand limit control.

  • Actuator included with W7751H mounts directly onto VAV box damper shaft and has up to 70 lb-in. torque, 90 degrees stroke, and 90 sec.

  • Timing at 60 Hz.

  • High speed 78 kilobit communications network.

  • Capable of standalone operation, but uses E-Bus network communications.

  • Easy user-access to the network communications jack.

  • Uses enhanced microbridge-type airflow sensor with dual integral restrictor design.

  • Easy user-access to airflow sensor inputs.

  • Provides Proportional Integral Derivative (PID) temperature control.

  • Designed for pressure independent Variable Air Volume (VAV) control.

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

  • Provides nonlinear floating algorithm for velocity control loops.

  • Individual zone pressurization for supply and exhaust control.

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

  • Motion sensor interface for enhanced energy savings.

  • Supports Terminal Regulated Air Volume (TRAV) concept.

  • Pressurize and depressurize, night purge, and morning warm-up sequences supported.

  • Wall module options for sensor, setpoint and bypass.

  • Software selectable limits on remote setpoint adjustments.

  • Three integrated 8 bit pipelined microprocessors running at 10 MHz.

  • 14 bit A/D converter.

  • 32K by 8 ROM/PROM, 512 bytes of EEPROM, and 2048 bytes of static RAM.

  • W7751D,F mount to a standard 4 x 4 in. and 5 x 5 in. junction box or snapped to 35 by 7.5mm EN50022 DIN Rail.

  • Subbase provides the slotted hole pattern for the R7450 series IRC devices (118x87 mm).


Product Specifications

Application
VAV Terminal Box
Dimensions (in.)
5 7/8 in. high x 4 1/16 in. wide x 3 3/4 in. deep
Dimensions (mm)
149 mm high x 103 mm wide x 95 mm deep
Includes
ML6161 Actuator mounted directly on the VAV box
Comments
UUKL approval for use on fire systems
Frequency
50 Hz; 60 Hz
Approvals, Canadian Standards Association
Listed: File number LR95329-3
Operating Humidity Range (% RH)
5 to 95% RH, non-condensing
Output Type
Pulse Width Modulation, Floating, Staged On/Off
Compatible With
See Application Selection Guide (63-7045)
Contact Ratings
Has UUKL approval for use on fire systems
Power Consumption
6 VA
Voltage
24 Vac with a valid range of 20 to 30 Vac
Setpoint Temperature Range (C)
7 to 37 C
Setpoint Temperature Range (F)
45 to 99 F
Operating Temperature Range (F)
32 F to 125 F
Operating Temperature Range (C)
0 C to 50 C
Shipping and Storage Temperature Range (F)
-40 F to +150 F
Shipping and Storage Temperature Range (C)
-40 C to +65 C
Approvals, Federal Communications Commission
Meets FCC part 15 Class A requirements
Network Communications
LonWorks Bus
Commissioning Software
CARE; LonSpec; RapidZone; LNS Plug-in