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Instruction Manual
D103127X012
May 2018
VSX4 and VSX8 Series Controller
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Reed Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Startup and Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Controller Spring Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
!
Failure to follow these instructions or to
properly install and maintain this equipment
could result in an explosion and/or fire
causing property damage and personal
injury or death.
Fisher™ controller must be installed, operated
and maintained in accordance with federal,
state and local codes, rules and regulations
and Emerson Process Management regulator
Technologies, inc. (Emerson) instructions.
Only a qualified person must install or
service the VSX4 and VSX8 Series controller.
if a leak develops or if the controller
continually vents gas, service to the unit may
be required. Failure to correct trouble could
result in a hazardous condition.
installation, operation and maintenance
procedures performed by unqualified
personnel may result in improper adjustment
and unsafe operations which may result in
equipment damage or personal injury.
The VSX4 and VSX8 Series controller do
not activate in response to fire, seismic and
lightning events.
Warning
VSX4 and VSX8 Series
Figure 1. VSX4 and VSX8 Series Controller
introduction
Scope of the Manual
This Instruction Manual provides installation, adjustment,
maintenance and parts ordering information for the VSX4
and VSX8 Series controller. Instructions for other equipment
used with the controller, such as pressure regulators, can be
found in separate instruction manuals.
Table of Contents
Related Manuals for Emerson VSX4 Series
Summary of Contents for Emerson VSX4 Series
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Page 1: Table Of Contents
Figure 1. VSX4 and VSX8 Series Controller state and local codes, rules and regulations and Emerson Process Management regulator Technologies, inc. (Emerson) instructions. Only a qualified person must install or service the VSX4 and VSX8 Series controller. -
Page 2: Specifications
Cable length: 3 m / 118 in. 1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded. 2. Product has passed Emerson testing for shutoff and trip function at -40°F. Product Description The VSX4 and VSX8 Series controller are designed to shut off the flow of gas to the downstream system in the event of outlet pressure rising above or falling below the predefined levels. - Page 3 VSX4 and VSX8 Series VSX4L VSX4H VSX8L VSX8H IS 6 bar DS 16 bar LP 1.5 bar HP 5.5 bar A Min, Min and Max installation B Max installation only IS PS 6 bar 6 bar PSD 6 bar Pressure range following umax DS PS 20 bar P 16 bar PSD 6 bar...
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Page 4: Principle Of Operation
VSX4 and VSX8 Series Table 3. Combined Overpressure and Underpressure Shutoff (OPSO and UPSO) Spring Ranges SLaM SHUT DEViCE Under Pressure Over Pressure UPSO Spring OPSO Spring Shut-off (UPSO) Shut-off (OPSO) inlet Pressure Type Set range Set range Over UPSO Setpoint Part number Spring Color Part number... - Page 5 DiaPHragM UnDErPrESSUrE SHUTOFF (UPSO) SPring OVErPrESSUrE SHUTOFF (OPSO) SPring DOWnSTrEaM SEnSE BLOCKing SCrEW rESET Pin VaLVE PLUg rESET BUTTOn VaLVE PLUg SPring ERAA11922-02 VSX4 SEriES inLET PrESSUrE, P OUTLET PrESSUrE, P aTMOSPHEriC PrESSUrE, Pb Figure 4. VSX4/VSX8 Series Operational Schematics...
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Page 6: Installation
0.7 x 1.3 The VSX4 Series assembly part number (without valve plug and controller springs): LP: GE35589X012, HP: GE35590X012 The VSX8 Series assembly part number (without valve plug and controller springs): LP: ERCA02667A0, HP: ERCA02668A0 1. Regulator without relief valve (or with relief valve set above controller setting). -
Page 7: Dimensions
VSX4 and VSX8 Series SPRING REMOVAL CLEARANCE 80 / 3.1 Ø 118 / 4.6 146 / 5.8 28 / 1.1 RESET TRIP CLEARANCE: 25 / 1 REMOVAL CLEARANCE: 45 / 1.8 147 / 5.8 mm / in. Figure 5. Controller External Dimensions rEgULaTOr rEgULaTOr SEnSE LinE... -
Page 8: Reed Switch
VSX4 and VSX8 Series reed Switch the equipment is used according to the appropiate instruction manual Warning issued by the manufactuer and/or available on our website Do not use the manual button if there is no when the equipment is used in a natural plug. - Page 9 VSX4 and VSX8 Series Figure 7. VSX8 Series with Reed Switch TORQUE: 0.7 N•m / 6.2 IN-LBS TORQUE: 0.7 N•m / 6.2 IN-LBS TORQUE: 4 TO 8 N•m / 3 TO 6 IN-LBS TORQUE: 0.3 TO 0.55 N•m / 2.7 TO 4.8 IN-LBS aPPLY aDHESiVE 1.
- Page 10 VSX4 and VSX8 Series Manual Shut-Off Button Procedure For VSX4 and VSX8 Series DOWnSTrEaM COnTrOL LinE COnnECTiOn Figure 10. Controller Manual Bypass Figure 9. Controller Manual Shut-off Button (key 23) Figure 11. Relatching the Controller Mechanism Figure 12. Repositioning the Reset Button...
- Page 11 VSX4 and VSX8 Series Figure 14. Controller in Closed (Tripped) Position Figure 13. Controller in Open (Reset) Position Systematic Maintenance is recommended as Specified Below: Table 6. Flow Chart for Checking Shut-off Mechanism - CLOSE THE UPSTrEaM VaLVE - CLOSE THE DOWnSTrEaM VaLVE High-Pressure Shutoff Low-Pressure Shutoff Supply pressure through outlet purge valve.
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Page 12: Maintenance
(key 36). Remove the controller from the body. industry codes, standards and regulations/ recommendations, all hazards covered by • For VSX4 Series disk replacement, remove the fastening specific tests after final assembly before ring (key 44). For VSX8 Series disk replacement, remove applying the CE marking, shall also be the travel stop/cotter pin (key 53) and the safety nut (key 58). -
Page 13: Parts Ordering
Removal and installation of the external sense line 1/4 NPT connection (Figure 6) Internal retaining ring pliers • Removal and installation of the VSX4 Series fastening ring (key 44, Figure 15) Needle Nose Pliers • Removal and installation of Cotter Pin for VSX8 Series Table 8. -
Page 14: Parts List
VSX4 and VSX8 Series Parts List VSX4 and VSX8 Series Controller LOW PrESSUrE HigH PrESSUrE LOW PrESSUrE HigH PrESSUrE DESCriPTiOn QUanTiTY Type VSX4L Type VSX4H Type VSX8L Type VSX8H Lower Case - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -... - Page 15 0.3 TO 0.55 N•m / 2.7 TO 4.8 in-LBS VSX8 SEriES TOrQUE: 0.3 TO 0.55 N•m / 2.7 TO 4.9 in-LBS VSX4 SEriES ManUaL BUTTOn ERCA02667 aPPLY LUBriCanT L1 = MULTi-PUrPOSE PTFE LUBriCanT L2 = anTi-SEiZE LUBriCanT 1. Lubricants must be selected such that they meet the temperature requirements.
- Page 16 Technologies, Inc. All rights reserved. 05/18. McKinney, Texas 75070 USA Singapore 128461, Singapore The Emerson logo is a trademark and service mark of Emerson T +1 800 558 5853 T +65 6777 8211 Electric Co. All other marks are the property of their prospective owners.