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Honeywell VQ400M Series Product Handbook

Class “a” combination valves
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VQ400M-Series
PRODUCT HANDBOOK

APPLICATION

Figure 1 VQ420M & VQ425M
Figure 2 VQ440M & VQ450M
HONEYWELL
HONEYWELL
HONEYWELL
HONEYWELL

CLASS "A" COMBINATION VALVES

The VQ400M Series class "A" safety combination
valves are used for control and regulation of
gaseous fluids in gas power burners, atmospheric
gas boilers, melting furnaces, incinerators and
other gas consuming appliances.
The VQ400M offers flexibility to mount accessories
like valve-position indicator, pressure indication
switches, vent-valves or by-pass valves at several
positions at the gas valve, whenever, wherever.
These combination valves are available in two body
sizes:
Small model
o
o
Large model
o
o
All models are connected at suitable sized gas
pipes by flange kits which can be ordered
separately in several sizes.
1
CLASS "A" COMBINATION VALVES
VQ400M SERIES
VQ420
VQ425
VQ440
VQ450
EN2R9081-C
October 2009

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  Summary of Contents for Honeywell VQ400M Series

  • Page 1: Class "A" Combination Valves

    CLASS “A” COMBINATION VALVES VQ400M SERIES CLASS “A” COMBINATION VALVES PRODUCT HANDBOOK The VQ400M Series class “A” safety combination APPLICATION valves are used for control and regulation of gaseous fluids in gas power burners, atmospheric gas boilers, melting furnaces, incinerators and other gas consuming appliances.
  • Page 2: Table Of Contents

    VQ400M-Series CLASS “A” COMBINATION VALVES CONTENTS FEATURES • VQ400M SERIES ............1 Class “A” safety combination valve for CLASS “A” COMBINATION VALVES ......1 control of gaseous fluids in gas consuming APPLICATION ..............1 appliances in accordance with international Contents ................. 2 standards.
  • Page 3: Description

    All models are connected at suitable sized gas with straight flanged pipe connection from 1/2 " up pipes by flange kits which have to be ordered to 2". The VQ400M Series combination valves are separately. standard equipped with two safety valves V1 and V2.
  • Page 4: Pipe Sizes

    Connections For connecting with several pipe sizes it is As shown in the figure below, VQ400M is provided recommended to mount Honeywell flange kits with plugs and flanges giving flexibility to customize which can be ordered separately as indicated this combination valve with Honeywell accessories.
  • Page 5: Electrical Connections

    CLASS “A” COMBINATION VALVES Electrical connections Power consumption VQ400M: standard plug connection according Honeywell provides VQ400M with coils that suit PG11 on main gas valves and additional valves. demands of specified inlet pressure levels. An Optional: three pin plug connector („DIN plug“) on overview of power consumption for different main gas valves and additional valves.
  • Page 6: Performance Characteristics

    4 seconds. Closing time Less than 1 second for both valves. Maximum working frequency VQ400M is equipped for maximal working frequency of one cycle per minute. Duty cycle Coils are suitable for permanent energizing. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 7: Capacity Curves

    VQ440MA DN40 1 ½” VQ450MA DN50 2” In figure 4 a broader range of specified capacity for VQ400M is shown in curves. Figure 4 Capacity curve for VQ400M Series class „A” combination valves. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 8: Installation

    The gas valve can be mounted plus or minus 90 degrees from the vertical. Mounting location The distance between the gas valve and the wall/ground must be at least 30 mm. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 9: Main Gas Connection Flanged Valves

    (E) and guide wires through the hole in the cover to the connection block (F). Connect wires between plates by tightening the particular screws (F1, F2, F3) • Left: Phase • Middle: Earth connection • Right: Neutral EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 10 (F1, F2, F3) • Left: Phase • Middle: Earth connection • Right: Neutral Tight cable support screws (C) Place gaskets and cover lids in position (B) Place screws (A) and tight. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 11: Adjustments And Final Checkout

    3. Turn wrench counter-clockwise to increase 4. Replace cap on top of the coil. or clockwise to decrease flow rate. 4. Replace cap screw. Figure 11 Adjusting flow rate. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 12: Final Checkout Of The Installation

    Figure 12 Adjusting step pressure. Figure 13 Adjusting opening speed. Final checkout of the installation Set the appliance in operation after any adjustment and observe several complete cycles to ensure that all burner components function correctly. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 13: Option Installation

    4. Please refer to the relevant instruction actuator sheet Moveable valve to open / close flow channel Flow direction SECTION A-A Automatic closing mechanism when power is switched off Figure 14 Schematic drawing of VQ400M. EN2R9081-C HONEYWELL HONEYWELL HONEYWELL HONEYWELL October 2009...
  • Page 14: Ordering Information

    Characteristic second valve 40: DN40 (1 1/2") A: Fast opening, no throttle 50: DN50 (2") B: Fast opening, throttle C: Slow opening Figure 15 Ordering information VQ400M Series combination valves. NOTE Accessories as flanges need to be ordered separately. EN2R9081-C HONEYWELL HONEYWELL...
  • Page 15: Replacement Of Parts

    Also check the gas valve for satisfactory VQ450M KTCOMB50 operation after fitting accessories. Table 6 Rectifier boards for VQ400M series. The second series of flange kits consist of: 1 flange with sealing plug or cast pressure tap, 1 strainer, 1 Gas valve...
  • Page 16 MS062001 VQ425M MS062501 VQ440M MS064001 VQ450M MS065001 See Honeywell documentation VB420Xxxxx KIT for further instructions on internal by-pass valves. Table 10 Overview of recommended external pilot valves. Table 13 Honeywell fine particle filter. Gas valve External pilot valve Gasvalve Honeywell Filter...
  • Page 17: Approvals

    Honeywell Honeywell Honeywell Honeywell Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Sàrl, Z.A. La Pièce 16, 1180 Rolle, Switzerland by its Authorized Representative: Automation and Control Solutions Combustion Controls Europe Honeywell BV Phileas Foggstraat 7...

This manual is also suitable for:

Vq420Vq425Vq440Vq450Vq420mVq425m ... Show all