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VRN PRESSURE INDEPENDENT CONTROL VALVES AND ACTUATORS

Automation and Control Solutions

Honeywell International Inc.

1985 Douglas Drive North

Golden Valley, MN  55422

customer.honeywell.com

® U.S. Registered Trademark
© 2016 Honeywell International Inc.
38-00032—01    M.S.  Rev. 03-16 
Printed in United States

Service and Repair

The valve stem can be replaced in-line, if necessary. See 
Fig. 32.

Fig. 32. Replacing the valve stem in-line.

Follow steps 1 to 6 of “Mounting Plate Adjustment” on 
page 14, then:

1.

If the lower packing gland is stuck, remove it with 
gland removal tool or rubber-tipped dental tool.

CAUTION

Avoid scratching the inside of the valve neck. 

This may cause a leak when re-assembled. 

2.

Carefully remove any fouling or corrosion from 
inside of valve.

3.

Align arrow with short leg of “T” symbol on new stem 
assembly.

NOTE:

“T” symbol will vary.

4.

Insert the new stem assembly. Be sure to line up the 
stem key with the ball slot.

5.

Fasten stem retainer high pressure plate to the valve 
using the new countersunk screws. Then fasten the 
mounting plate to the valve.

6.

Repressurize valve and confirm stem does not leak 
before proceeding.

7.

Slide the sub shaft over the stem with the tab 
oriented as shown in Fig. 32.

8.

Replace the thermal break, shaft, and shaft cover. If 
shaft has come loose from thermal break, push 
firmly on end of shaft until blade in shaft snaps into 
thermal break. 

9.

Replace actuator and secure it to shaft and mount-
ing plate.

10.

Snap handle onto top of shaft.

Any other service to valve such as seat seal replacement 
requires removal of valve from piping.

STEM

ASSEMBLY

COUNTERSUNK
SCREWS

STEM RETAINER
PLATE

“T” SYMBOL

STEM

UPPER PACKING
GLAND

O-RING

LOWER PACKING
GLAND

M34994

Содержание MN6105A1011

Страница 1: ...perform better than reverse return piping designs without the extra materials these systems need Pressure independent control requires less flow enabling use of smaller piping pumps and chillers FEATURES Sizes from 1 2 to 3 in with internal female NPT connections Controls hot or chilled water with up to 50 glycol Regulated flow rates available from 1 to 95 gpm Differential pressure regulator for c...

Страница 2: ...valve straight through flow full port with patented flow control insert Pipe Size 1 2 to 3 inches with female NPT pipe fittings Body Pressure Rating maximum 360 psi 2500 kPa at 250 F 121 C Controlled Medium Water or Glycol solutions up to 50 Not suitable for combustible gases oil or steam Medium Temperature Range 22 to 250 F 30 to 121 C Maximum Differential Pressure See Table 1 Close off pressure ...

Страница 3: ...ee Table 4 P Plated Brass S Stainless Steel A Standard Base X MN MS DCA Actuator Bracket VR N 2 A 001 00 P A MVN613A0000 C1 Table 2 Actuator Control Description Actuator Control MVN613A0000 Floating Two position SPDT or SPST 90 sec timing 24 V Fail in Place MVN643A0000 Floating Two position SPDT Fast Acting 30 sec timing 24 V Fail in Place MVN713A0000 Modulating 24 V Fail in Place MN6105A1011 Floa...

Страница 4: ...c Floating 2 Pos 30 sec MVN643 Fail in place 2 Fail Safe Closed FSC 02 3R NEMA enclosure 3 24 Vac Modulating 0 2 10 Vdc MVN713 Fail in place 4 24 Vac Floating 2 Position MN6105 Fail in place 5 24 Vac Mod 0 2 10 Vdc MN7505 Fail in place 6 24 Vac Mod 0 2 10 Vdc Floating MS7505 Fail safe Flow Rate GPM Options range from B 9 See Table 4 7 24 Vac 2 Position MS8105 Fail safe 8 100 250 Vac 2 Position MS4...

Страница 5: ...VRN2A 0 5 3 35 3 1 2 3 4 5 6 7 VRN2B 0 75 3 35 3 1 2 3 4 5 6 7 6 35 6 8 9 10 VRN2C 1 3 35 3 1 2 3 4 5 6 7 6 35 6 8 9 4 50 4 10 15 20 VRN2D 1 25 4 50 4 10 15 20 5 50 5 25 30 6 5 58 6 5 35 VRN2E 1 5 4 50 4 10 15 20 5 50 5 25 30 4 58 4 35 6 58 6 40 45 50 7 58 7 55 60 65 70 75 80 85 11 58 11 95 VRN2F 2 4 50 4 10 15 20 5 50 5 25 30 4 58 4 35 6 58 6 40 45 50 7 58 7 55 60 65 70 75 VRN2G 2 5 4 58 4 25 30 ...

Страница 6: ... Rating Full Port A B C D E F G VRN2A 1 2 DN15 1 0 0 23 7 0 1 6 5 71 145 4 56 116 6 57 167 2 32 59 3 87 98 7 36 187 2 8 71 2 5 1 1 Stem 5112 19 5112 22 SS Regulator 8615 100 for 1 3 gpm 8615 101 for 4 10 gpm VRN2B 3 4 DN20 9 0 2 0 10 2 3 6 63 168 VRN2C 1 DN25 15 0 3 4 5 83 148 20 4 5 20 4 5 9 65 245 9 13 232 2 41 61 8 01 203 7 1 3 2 Stem 5112 20 5112 23 SS Regulator 8615 102 VRN2D 1 1 4 DN32 10 2 ...

Страница 7: ...Size Flow gpm m3 h Dimensionsc in in mm Weight lb kg ServiceReplacement Parts NPT in S I metric Min Rating Max Rating Full Port A B C D E Fza Fsa VRN2A 1 2 DN15 1 0 0 23 7 0 1 6 5 71 145 5 43 138 8 87 225 2 32 59 2 5 64 10 02 255 8 77 223 2 5 1 1 Stem 5112 19 5112 22 SSb Regulator 8615 100 for 1 3 gpm 8615 101 for 4 10 gpm VRN2B 3 4 DN20 9 0 2 0 10 2 3 8 94 227 VRN2C 1 DN25 15 0 3 4 5 83 148 20 4 ...

Страница 8: ...equency 50 Hz 60 Hz Mounting Click on installation no tool required Noise Rating at 1m Maximum 35 dB A max at 1 m 50 dB A for MVN643 Materials Plenum rated plastic housing Operating Humidity Range RH 5 to 95 RH non condensing Ambient Temperature Range 4 F to 131 F 20 C to 55 C Storage Temperature Range 40 F to 176 F 40 C to 80 C Weight 0 6 lb 0 27 kg Dimensions See Fig 1 and Table 5 Timing 90 sec ...

Страница 9: ...Yes SSW2 1M Environmental Rating NEMA2 Frequency 50 Hz 60 Hz Manual operation Declutch mechanism Mounting Direct coupled Maximum Noise Rating Driving dBA 1m 35 Rotation to Open By switch Rotational Stroke Adjustment Dual Integral Adj Stops 3 degree increments Compatible Damper Shafts 1 4 to 1 2 in square or 3 8 to 5 8 in round 6 to 13 mm square or 8 to 16 mm round Shaft Adapter Type U bolt clamp S...

Страница 10: ...ection By orientation External Auxiliary Switches Available No Environmental Rating NEMA2 Frequency 50 Hz 60 Hz Mounting Direct Coupled Maximum Noise Rating Holding dBA 1m 20 no audible noise Maximum Noise Rating Driving dBA 1m 50 Rotation to Open By switch Rotational Stroke Adjustment Mechanically limited 5 degree increments Compatible Damper Shafts 1 4 to 1 2 in square or 3 8 to 5 8 in round 6 t...

Страница 11: ...th Terminal 1m Modulation RED BLACK WHITE x MVNAC6131 Replacement Cable with Terminal 1m Floating RED BLACK WHITE x x MVNAT3 Replacement Screw type Terminal Block Pluggable x x x 5112 11 Replacement actuator bracket x x 205860 Minimum position Potentiometer x x 32006306 001 Resistor Kit 500 ohm converts 4 20 mA signal to 2 10 Vdc x x Q7002B1009 Universal Interface Module x x STRN SCSA Self centeri...

Страница 12: ...s and chillers Flow Characteristics The VRN2 two way dynamic pressure regulating control valves have an equal percentage flow characteristic with characterized flow control insert Required Operating Torque Both Honeywell non spring return MVN and spring return low torque direct coupled actuators can be utilized with the VRN2 valves VR valves use a patented seat design that reduces the torque neede...

Страница 13: ...h pipe wrench by hexagonal fitting ONLY Do NOT handle the valve body with the pipe wrench product damage may result The valves are tapped in NPT and should be sealed with an approved pipe sealant Torque should not exceed 75 lb ft Refer to actuator literature for actuator dimensions 1 Clean the lines upstream of particles larger than 1 16 in diameter welding slag pipe scale and other contaminants 2...

Страница 14: ... set aside the two screws that attach the mounting plate to the valve 5 Remove and set aside hold down ring from mounting plate 6 Rotate mounting plate around valve top to the desired position NOTE Take note of the screw hole positions on the valve They limit the mounting plate positions 7 Lower ring down to valve body and engage it in the new position relative to the mounting plate 8 Tighten scre...

Страница 15: ...D FOR SPST CONTROL 24 VDC SUPPLY ACCEPTABLE FOR MVN643 2 CONTROLLER 2 DIRECT REVERSE SERVICE OFF M34869 3 3 4 3 2 FLOATING ACTUATOR 24 VAC Direct Reverse Service Off 1 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED FLOATING CONTROLLER M18946A 24 VAC 1 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED PROPORTIONAL CONTROLLER FEEDBACK 1 3 2 5 PR...

Страница 16: ...AD PROTECTION AS REQUIRED USE CLASS II 24V TRANSFORMER 4 20mA CONTROLLER M33141B 1 2 3 DIP SWITCH POSITION 1 2 MODE OFF OFF 2 10V OFF ON 0 10V ON OFF 10 2V ON ON 10 0V PROPORTIONAL MODULATING 4 20mA CONTROLLER OUTPUT WITH 500Ω SERIES RESISTOR TO OTHER ACTUATORS 500 OHMS 1 2 W MINIMUM 24 VAC 2 RED BLACK WHITE 1 2 PROPORTIONAL ACTUATOR 24 VAC 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROT...

Страница 17: ... AND OVERLOAD PROTECTION AS REQUIRED 24 VDC SUPPLY ACCEPTABLE SET SWITCH TO MODULATING V OR OR N A FEEDBACK FEEDBACK 5 4 3 1 2 M19577B 2 10 VDC 10 2 VDC 0 10 VDC 10 0 VDC Fltg fwd Fltg rev 3 SPST ACTUATOR 4 TO 20 mA PROPORTIONING CONTROLLER 24 VAC 1 1 2 3 2 490 TO 510 OHMS 1 2 W MINIMUM LINE VOLTAGE POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 24 VDC SUPPLY ACCEPTABLE ...

Страница 18: ...uator from the valve shaft d Move the Self Centering Shaft Adaptor to the opposite side of the actuator as displayed in Fig 28 Fig 28 Change actuator to normally open 1 Remove the retainer clip from the Self Centering Shaft Adapter and set it aside for later use 2 Remove SCSA from actuator 3 Reinstall SCSA on the opposite side of the actuator aligning it based on the stroke labeling 4 Replace the ...

Страница 19: ... loss If desired maximum flow may be trimmed to a lesser value in one of two ways 1 With modulating actuator limit span of control voltage issued by the building automation controller Valves with flow control inserts have an equal percentage flow characteristic See Fig 31 Each 10 reduction in maximum control voltage will result in a 10 reduction in flow Fig 31 Typical flow characteristics 2 To mec...

Страница 20: ...of valve 3 Align arrow with short leg of T symbol on new stem assembly NOTE T symbol will vary 4 Insert the new stem assembly Be sure to line up the stem key with the ball slot 5 Fasten stem retainer high pressure plate to the valve using the new countersunk screws Then fasten the mounting plate to the valve 6 Repressurize valve and confirm stem does not leak before proceeding 7 Slide the sub shaf...

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