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.
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.
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.
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.
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.
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...
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...
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...
(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...
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...
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...
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...
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...
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...
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...