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EN2R--9018 9704R1--NE

12

Opening speed adjustment (see Fig. 9. )

1. Remove the cap from top of the coil by loosening both

screws.

2. Place screw driver in the slot of adjustment screw

which is of center line.

3. Turn screw driver counter--clockwise to increase the

opening speed and therefore the time till full opening will
decrease.

4. Turn screw driver clockwise to decrease the opening

speed and therefore the time till full opening will
increase.

5. Replace cap on top of the coil.

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.

Pout

le

t

Step
pressure

time

Flow regulation

Opening speed regulation

Fig. 10. Characterized opening.

Содержание VQ400 Series

Страница 1: ...odel VQ440 50 pipe sizes 1 1 2 and 2 The 1 1 4 connection is obtained by using a DN32 flange kit on a VQ440 body The features and specifications of both models are identical unless specified otherwise Contents General Description 2 Features 3 Technical Specifications 4 5 Performance characteristics 6 Capacity curves 7 Dimensional drawings 8 9 Installation and Operation Installation 10 Adjustments ...

Страница 2: ...400 Series combination valves are standard equipped with two main valves V1 and V2 Safety valve V1 is always fast opening closing The second valve V2 can be either fast with flow regulation or slow with flow regulation and adjustable opening At the main body 4 flange connections are provided to mount either an internal by pass valve to achieve high low flame control internal or external pilot valv...

Страница 3: ...le for permanent energization Fine mesh screen between inlet flange and main body Various pressure tap points at main body available when no additional valves or pressure switches are used Second main valve either with adjustable flow regulator fast or characterized opening mechanism slow with adjustable maximum flow rate and step pressure Rectifier board with LEDs VQ440 50 only to indicate energi...

Страница 4: ...valve 1 is used at VQ450 series valves Torsion and bending stress Pipe connections meet group 2 according to EN161 requirements Supply voltages Line voltage 220 240 Vac 50 60 Hz 200 Vac 50 60 Hz 100 110 Vac 50 60 Hz 24 28 Vdc Other voltages on request Electrical equipment DC current coils with separated rectifier inside the cover Electrical connections VQ420 25 standard plug connection according P...

Страница 5: ...7 17 VQ425Ax 20 20 20 18 18 18 24 24 24 20 20 20 18 18 18 24 24 24 VQ440Ax 41 41 41 48 48 48 64 64 64 40 40 40 47 47 47 67 67 67 VQ450Ax 60 60 60 65 65 65 67 67 67 41 41 41 48 48 48 64 64 64 Table 2 Power consumption W additional valves Additional valve 360 mbar 200 mbar valve 220 240 Vac 100 110 Vac 24 28 Vdc 220 240 Vac 100 110 Vac 24 28 Vac 3 4 1 3 4 1 3 4 1 3 4 1 3 4 1 3 4 1 by pass valve 14 2...

Страница 6: ...t 80 of rated capacity 30 mbar supply pressure nominal voltage 20 EC 2 5 mbar pressure drop no step pressure Due to the influence of ambient temperature 15 60 EC the adjusted opening time of 6 seconds measured at 80 of adjusted flow rate can vary 4 seconds Closing time V1 V2 Vb and Vp Less than 1 second for all four valves Maximum working frequency 1 cycle per minute Duty cycle Coil suitable for p...

Страница 7: ... DN32 1 1 2 DN40 2 DN50 8 11 25 31 40 60 50 40 30 20 10 8 6 5 1 2 4 3 4 3 2 1 0 1 0 2 0 3 0 4 0 5 0 6 0 8 10 20 30 40 50 60 80 200 300 p kPa p mbar Vn m3 h Air dv 1 Methane dv 0 64 100 10 8 6 5 4 3 2 1 2 3 4 5 6 8 100 300 200 80 60 50 40 30 20 a a 5 6 DN20 DN40 DN50 DN32 DN25 Fig 1 Capacity curves for VQ400 Series class A combination valves ...

Страница 8: ...EN2R 9018 9704R1 NE 8 DIMENSIONAL DRAWINGS A A B D D B C C H H HONEYWELL 62 188 3 4 151 E Fig 2 Overall dimensions VQ400 Series shown 2nd valve slow ...

Страница 9: ...x Fx 3 4 204 42 5 112 157 60 247 6 1 VQ425Ax 1 204 42 5 135 5 181 5 64 5 108 5 0 VQ425Bx Cx Ex 1 204 42 5 136 181 64 5 177 6 3 VQ425Dx Fx 1 204 42 5 136 181 64 5 247 7 6 VQ440Ax 1 1 2 297 62 174 228 63 5 119 10 7 VQ440Bx Cx Ex 1 1 2 297 62 174 228 63 5 209 11 9 VQ440Dx Fx 1 1 2 297 62 174 174 63 5 300 13 5 VQ450Ax 2 297 62 174 184 228 238 63 5 119 12 1 VQ450Bx Cx Ex 2 297 62 174 184 228 238 63 5 2...

Страница 10: ...rf 4 Apply a moderate amount of good quality thread compound to the pipe for fitting only leaving the two end threads bare PTFE tape may be used as an alternative 5 Screw the flanges onto the pipes 6 Ensure that the inlet and outlet flanges are in line and separate from each other enough to allow the valve to be mounted between the flanges without damaging the O ring 7 Place the O ring If necessar...

Страница 11: ...o decrease flow rate 4 Replace cap screw 2nd main valve pilot valve and by pass valve slow opening The following characteristics can be adjusted flow rate step pressure opening speed IMPORTANT To ensure a satisfactory setting of the valve the pressure drop over the valve should be at least 10 of the supply pressure or 2 5 mbar which ever is the greatest Flow rate adjustment see Fig 6 and 7 1 Remov...

Страница 12: ...herefore the time till full opening will decrease 4 Turn screw driver clockwise to decrease the opening speed and therefore the time till full opening will increase 5 Replace cap on top of the coil 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 Poutlet Step pressure t...

Страница 13: ...own and thus opening or closing the valve The plunger is gliding on two anti friction bearings Flow regulation is done by adjustable plunger stroke A strainer made out of steel AISI 303 is incorporated between inlet flange and main body Valve closing spring is made out of steel AISI 302 Seals and gaskets are manufactured out of hydrocarbon resistant NBR according to DIN 3535 and EN291 gas flow dir...

Страница 14: ...ctro Magnetic Compatibility standards for non industrial and industrial appliances Approvals The VQ400 Series class A combination valves conform with the following EC directives Gas Appliance Directive 90 396 EEC PIN CE 0063AR1520 Low Voltage Directive 73 23 EEC Electro Magnetic Compatibility Directive 89 336 EEC The fact that the VQ400 Series combination gas valves are certified to European Stand...

Страница 15: ... A standard plug connection according PG11 B three pin plug connector DIN plug C complete cabling with Valve Proving System VPS Fig 12 Ordering information VQ400 Series combination valves How to select your valve Standard the VQ400 Series combination valves are equipped with two main valves V1 and V2 Safety valve V1 is always fast opening closing The second valve V2 can be either fast with flow re...

Страница 16: ...n cabling specification Type Code Positions yp V W X Y Plug 0 C6058A136 2 5 50 mbar 1 C6058A140 30 150 mbar 2 By pass valve 3 External Pilot 4 Internal Pilot 5 Vent Valve 6 A4021A C6058A 7 1 1 C6058A144 100 500 mbar 8 1 only when by pass valve and pilot or vent valve are used NOTE For customer specials such as cabling a code will be released by the factory ...

Страница 17: ...ns VPS main valve V1 V2 internal by pass high low valve Vb external pilot valve Vp vent valve Vv pressure switch min or max Valve Proving System Inlet strainer flange with pressure tap Closed Position Indication switch CPI pressure tap or internal pilot valve Vp ...

Страница 18: ...EN2R 9018 9704R1 NE 18 VQ400AA VQ400AB series combination valves Suffix Characteristics V1 V2 Vb AA Fast Fast AB Fast Slow VPS V1 V2 min max ...

Страница 19: ...2R 9018 9704R1 NE 19 VQ400BA VQ400BB VQ400BC VQ400BD series combination valves Suffix Characteristics V1 V2 Vb BA Fast Fast Fast BB Fast Slow Fast BC Fast Fast Slow BD Fast Slow Slow V1 V2 min max Vb VPS ...

Страница 20: ...EN2R 9018 9704R1 NE 20 VQ400CA VQ400CB series combination valves Suffix Characteristics V1 V2 Vb CA Fast Fast CB Fast Slow VPS V1 V2 min max Vv ...

Страница 21: ...R 9018 9704R1 NE 21 VQ400DA VQ400DB VQ400DC VQ400DD series combination valves Suffix Characteristics V1 V2 Vb DA Fast Fast Fast DB Fast Slow Fast DC Fast Fast Slow DD Fast Slow Slow VPS V1 V2 min max Vv Vb ...

Страница 22: ...EN2R 9018 9704R1 NE 22 VQ400EA VQ400EB series combination valves Suffix Characteristics V1 V2 Vb EA Fast Fast EB Fast Slow VPS V1 V2 min max Vp ...

Страница 23: ...R 9018 9704R1 NE 23 VQ400FA VQ400FB VQ400FC VQ400FD series combination valves Suffix Characteristics V1 V2 Vb FA Fast Fast Fast FB Fast Slow Fast FC Fast Fast Slow FD Fast Slow Slow VPS V1 V2 min max Vp Vb ...

Страница 24: ...N2R 9018 9704R1 NE 24 VQ400GA VQ400GB VQ400GC VQ400GD series combination valves Suffix Characteristics V1 V2 Vb GA Fast Fast Fast GB Fast Slow Fast GC Fast Fast Slow GD Fast Slow Slow V1 V2 min Vb VPS Vp ...

Страница 25: ...EN2R 9018 9704R1 NE 25 VQ400HA VQ400HB VQ400HC VQ400HD series combination valves Suffix Characteristics V1 V2 Vb HA n a Fast Fast HB n a Slow Fast HC n a Fast Slow HD n a Slow Slow V2 min max Vb ...

Страница 26: ...EN2R 9018 9704R1 NE 26 VQ400JA VQ400JB series combination valves Suffix Characteristics V1 V2 Vb JA Fast Fast JB Fast Slow VPS V1 V2 min Vp Vv ...

Страница 27: ... 220 240 1 V2 BB151101 110 1 BB152801 24 28 Vdc 1 V1 BB052325 220 240 1 VQ425 V1 BB051125 110 1 VQ425 BB052825 24 28 Vdc 1 V2 BB152325 220 240 1 V2 BB151125 110 1 BB152825 24 28 Vdc 1 BB052341 220 240 1 BB052304 220 240 1 V1 BB051135 110 1 VQ440 BB051151 110 1 VQ440 BB052841 24 28 Vdc 1 BB152327 220 240 1 BB152341 220 240 1 V2 BB151135 110 1 BB151151 110 1 BB152841 24 28 Vdc 1 BB052304 220 240 1 V...

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