Actuated Ball Valves. n e p t r o n. Description. Product Features

Transcription

1 for two way and three way ontrol of hot water, hilled water systems & low pressure steam Desription The Atuated Ball Valve is omprised of the atuator, the linkage and the valve body. The standard ball valve has a stainless steel ball and stem in a bronze body. Valve sizing ranges from ½ inh to 3 inhes or 5mm to 80mm. All stainless steel valves are available upon request. The full port design is less restritive providing high flow harateristis with low pressure drops. The Valve Seletion Chart on page 3 identifies the valve s port onfiguration. ACTUATION One the atuator series, BT/BM, TT/TM or RT/RM, has been determined, the atual model that meets the system s ontrol requirements may be seleted. The BT, TT and RT digital motors may be wired for position or 3 point floating ontrol. The BM,TM and RM Multi Signal atuators aept position, 3 point floating, -0VDC, 4-0mA or pulse width modulating ontrol signals. They are Zero & Span adjustable whih allows sequening of two or more valves for speial ontrol appliations. Power supply is -6VAC standard; however, models that operate on line voltage are available. EMERGENCY POSITIONING SYSTEMS The patented Enerdrive System*, The Eletroni Spring, is available on seleted BT/BM, TT/TM or RT/RM models. This emergeny positioning devie utilizes the inherent properties of super apaitors to power the unit at full rated torque to its safety position, either fully open or fully losed, in the event of power failure. VALVE BODIES Both two and three way valves feature a bronze body with stainless steel trim in standard models. Produt Features High Cv ratings Low pressure drop Operating pressure up to 6 PSI WOG for two way valves 4 PSI WOG for three way valves Female NPT is standard LINKAGE SYSTEMS The heavy duty linkage assembly whih is omprised of zin plated steel diretly ouples the atuator to the valve. It is fatory assembled and properly adjusted and tested. * U.S.A. Patent #5,78,454 NEP08/0 PAGE

2 Valve Performane PERCENTAGE OF MAXIMUM FLOW PRESSURE - PSI Fig. ii F C TEMPERATURE The Effet of Temperature on Pressure Ratings Fig. i PERCENTAGE OF BALL OPENING The Average Flow Charateristis for Two Way Valves Model menlature In the diagram below, the valve nomenlature for this series of atuated valve is segmented into its omponents as an aid to omprehending Neptroni s new method of labelling. This departure from previous model numbers will greatly assist the user in identifying the exat valve and its harateristis one it has been installed. SB D 0480 X S T M 0 60 SB: FP: ST: PAGE Valve Series Ball, Way Redued Port Ball, Way Full Port Ball, 3 Way Pipe Size A: /" B: 3/4" C: " D: -/4" E: -/" F: " G: -/ H: 3" Cv: To : Unit Column is a Deimal K: K is Thousand s Column followed by Hundred s and Ten s 0: 40: 4 48: 4.8 : 040: 4 0: 5 : 03: : : : : : : : : 08 : 5 770: 77 37: : 38 30: 3 Valve Body X: Bronze 6WOG Valve Ends : NPT Female Valve Trim S: Stainless Steel Motor Series B: in.lb. L: R: 360 in.lb. M: T: 80 in.lb. T: Control Signal 0: : : 3: 4: 6: 7: 8: Lon Analog Digital Supply Voltage 4VAC/30VDC 5V Only 30V Only 4VAC/30VDC 5V 30V 4VAC Only VDC Only 4VDC Only 48VDC Only : 05: 0: 60: 65: 80: Motor Features Basi Motor Resistive Feedbak Mehanial Swithes Enerdrive Enerdrive & Feedbak Enerdrive & Swithes NEP08/0

3 Model Seletion Tables In Table, the various models listed designate the size, type, flow rate and lose off pressure of eah valve as well as the atuator group to be used. Selet the appropriate valve model. Choose the atuator model from Table based upon the group indiated in Table and the system requirements. The atuator model is added as a suffix to the valve model seleted to form a omplete atuated valve model. Refer to the formula in Table 3. TABLE : VALVE SELECTION SB - way redued port FP - way full port SIZE INE FLOW Cv VALV E MODEL MAXIMUM CLOSE OFF ACTUATOR SERIES BT/BM TT/TM RT/RM SIZE INE FLOW Cv VALV E MODEL MAXIMUM CLOSE OFF ACTUATOR SERIES BT/BM TT/TM RT/RM /" SB A0XS /" 4 SB A40XS 3/4" 30 SB B03XS " 43 SB C0430XS 3 PSI -/4" 48 SB D0480XS 3 PSI -/" 84 SB E0840XS " 08 SB F080XS 3" 370 SB H37XS 5 7 PSI /" 5 FP A0XS 3/4" 5 FP B050XS 3 PSI " 68 FP C0680XS 3 PSI -/4" 5 FP DXS -/" 77 FP E770XS 3 PSI " 38 FP F380XS -/" 3 FP G30XS 5 7 PSI ST - 3 way ball valve SIZE INE FLOW Cv VALV E MODEL MAXIMUM CLOSE OFF ACTUATOR SERIES BT/BM TT/TM RT/RM /" ST A0XS /" 4. 8 ST A48XS 3/4" ST BXS " 4 ST C040XS 3 PSI -/4" ST DXS 3 PSI -/" 34 ST E0340XS " 47 ST F0470XS 5 7 PSI NEP08/0 PAGE 3

4 TABLE : ACTUATOR SELECTION ACTUATOR CAPABILITY AC TU ATOR MOD ELS in.lb. TORQUE BT0 BT BT060 BT080 BM0 BM in.lb. TORQUE TT0 TT TT060 TT080 TM0 TM in.lb. TORQUE RT0 RT RT060 RT080 RM0 RM060 CONTROL SIGNAL Pos. 3 Pt. Fltng. Pos. 3 Pt. Fltng. Pos. 3 Pt. Fltng. Pos. 3 Pt. Fltng. Position 3 Pt. Fltng. -0VDC 4-0mA PWM Position 3 Pt. Fltng. -0VDC 4-0mA PWM FEEDBACK Conditioned Conditioned ENERDRIVE SYSTEM Yes Yes Yes AUXILIARY SWITCHES Yes Yes TABLE 3: ACTUATED VALVE FORMULA FORMULA: B ALL VALVE + A CTUATOR = ACTUATED VALVE Speifiation Requirements : -/4 inh Line size, Way 48 Cv, 3 PSIG Close Off, Bronze 6 WOG, S.S. Trim NPT Female + -0 VDC Control Signal 4-0mA Output Feedbak Fail Safe = Modulating -/4 inh Way Ball valve, NPT Female Fail Safe and Feedbak Seleted from the Tables : S B D0480XS + T M060 = SB D0480XS TM060 PAGE 4 NEP08/0

5 Speifiations for valves with the BT or BM atuators Valve Speifiations: Valve Flow Type: Body: Stem paking & bearing: Seat: Ball & Stem: End Connetions: Two Way: Equal Perentage Three Way: Linear Bronze ASTM B584-C844 RPTFE RPTFE 36 Stainless Steel NPT Female Atuator Speifiations: Power Supply: Maximum Power Consumption: Wire Size & Length: Eletrial Connetions: Control Signals: Torque: Diretion of Rotation: Rotation Time: Atuator Ambient Temperature: Feedbak Potentiometer: Enerdrive Rating: Enerdrive Response Time: Auxiliary Swithes: Auxiliary Swith Rating: Enlosure: -6VAC or 8-3VDC BT0, BT & BM0: 6VA at 6VAC at Full Load BT060, BT080 & BM060: Peak at Start-up: 5VA at 6VAC Operating at Full Load: 6VA at 6VAC 8 AWG Minimum, 5 ft./7.6 m. Maximum per Atuated Valve One 5/8 in./ 5. mm. & One 7/8 in./. mm. Knok Outs, Srew Terminals BT0 & BT: 3 Wire Position, 3 Wire 3 Point Floating BT060 & BT080: Wire Position, 4 Wire 3 Point Floating BM0 & BM060: ANALOG: A) -0VDC; or B) May be Externally Wired with a 0 Ohm Resistor whih is Supplied for 4-0mA, Zero & Span Adjustable PULSE WIDTH MODULATION: Time Base of Seonds/0mS Resolution or Seonds/mS Resolution Seleted by Dip Swith Position SWITCH HOT: Tria or Dry Contat, 40mA Max. Swithing Current SWITCH : NPN Transistor, SCR, Tria or Dry Contat 75mA Maximum Swithing Current DIGITAL:3 Wire/ Position or 4 Wire/3 Point Floating in.lb. or 5.6 Nm. at Rated Voltage Reversible 0- in.lb.: 0-30 Seonds Through 0 0 F to + F or -8 C to + C BM0 & BM060:4-0mA Output (May be Externally Wired for a -0VDC Signal) BT060, BT080 & BM060: in.lb or 5.6 Nm. 0- in.lb. is 0-30 Seonds Closure Through 0 BT & BT080: Mehanial, Fixed at 0 & 80 Amp Resistive, 4VAC MOTOR: UL Reognized QMFZ Fire Rated 4V-5 GEAR TRAIN: Die Cast Zin with a Steel Base NEP08/0 PAGE 5

6 SB & FP - Two Way Ball Valve with the BT or BM Atuator ALL DIMENSIONS IN INCHES SIZE /" /" /" 3/4" CV MODEL SB A0XS SB A40XS FP A0XS SB B03XS A B C D E F G H I ST - Three Way Ball Valve with the BT or BM Atuator ALL DIMENSIONS IN INCHES SIZE /" /" 3/4" CV 4.8 MODEL ST A0XS ST A48XS ST BXS A B...5 C D E F G H I J...6 PAGE 6 NEP08/0

7 Speifiations for valves with the TT or TM atuators Valve Speifiations: Valve Flow Type: Body: Stem paking & bearing: Seat: Ball & Stem: End Connetions: Two Way: Equal Perentage Three Way: Linear Bronze ASTM B584-C844 RPTFE RPTFE 36 Stainless Steel NPT Female Atuator Speifiations: Power Supply: Maximum Power Consumption: Wire Size & Length: Eletrial Connetions: Control Signals: Torque: Diretion of Rotation: Rotation Time: Atuator Ambient Temperature: Feedbak Potentiometer: Enerdrive Rating: Enerdrive Response Time: Auxiliary Swithes: Auxiliary Swith Rating: Enlosure: -6VAC or 8-3VDC TT0, TT & TM0: 8VA at 6VAC at Full Load TT060, TT080 & TM060: Peak at Start-up: 4VA to 30VA at 6VAC Depending upon the Model Operating at Full Load: 8VA at 6VAC 8 AWG Minimum, 5 ft./7.6 m. Maximum per Atuated Valve Two 7/8 in./. mm. Knok Outs, Srew Terminals TT0 & TT: 3 Wire Position, 3 Wire 3 Point Floating TT060 & TT080: Wire Position, 4 Wire 3 Point Floating TM0 & TM060: ANALOG: A) -0VDC; or B) May be Externally Wired with a 0 Ohm Resistor whih is Supplied for 4-0mA, Zero & Span Adjustable PULSE WIDTH MODULATION: Time Base of Seonds/0mS Resolution or Seonds/mS Resolution Seleted by Dip Swith Position SWITCH HOT: Tria or Dry Contat, 40mA Max. Swithing Current SWITCH : NPN Transistor, SCR, Tria or Dry Contat 75mA Maximum Swithing Current DIGITAL: 3 Wire/ Position or 4 Wire/3 Point Floating 80 in.lb. or 0 Nm. at Rated Voltage Reversible 0-80 in. lb. or 0-0 Nm.: Seonds 0 F to + F or -8 C to + C TM0 & TM060: 4-0mA Output (May be Externally Wired for a -0VDC Signal) TT060, TT080 & TM060: 80 in.lb. or 0 Nm. TT060, TT080 & TM060: 0-80 in. lb. or 0-0 Nm., Se. Closure Through 0 TT & TT080: Mehanial, Fixed at 0 & 80 Amp Resistive, 4VAC UL Reognized QMFZ Fire Rated 4V-5 and Steel NEP08/0 PAGE 7

8 SB & FP - Two Way Ball Valve with the TT or TM Atuator ALL DIMENSIONS IN INCHES SIZE CV MODEL A B C D E F G H I 3/4" " " -/4" FP B050XS SB C0430XS FP C0680XS SB D0480XS /4" 5 FP DXS /" 84 SB E0840XS ST - Three Way Ball Valve with the TT or TM Atuator SIZE " -/4" -/" PAGE 8 CV 4 34 MODEL ST C040XS ST DXS ST E0340XS A B.6.0. C D ALL DIMENSIONS IN INCHES E F G H I J NEP08/0

9 Speifiations for valves with the RT or RM atuators Valve Speifiations: Valve Flow Type: Body: Stem paking & bearing: Seat: Ball & Stem: End Connetions: Two Way: Equal Perentage Three Way: Linear Bronze ASTM B584-C844 RPTFE RPTFE 36 Stainless Steel NPT Female Atuator Speifiations: Power Supply: Maximum Power Consumption: Wire Size & Length: Eletrial Connetions: Control Signals: Torque: Diretion of Rotation: Rotation Time: Atuator Ambient Temperature: Feedbak Potentiometer: Enerdrive Rating: Enerdrive Response Time: Auxiliary Swithes: Auxiliary Swith Rating: Enlosure: -6VAC or 8-3VDC RT0, RT & RM0: 0VA at 6VAC at Full Load RT060, RT080 & RM060: Peak at Start-up: 4VA to 30VA at 6VAC Depending upon the Model Operating at Full Load: 0VA at 6VAC 8 AWG Minimum, 5 ft./7.6 m. Maximum per Atuated Valve Two 7/8 in./. mm. Knok Outs, Srew Terminals RT0 & RT: 3 Wire Position, 3 Wire 3 Point Floating RT060 & RT080: Wire Position, 4 Wire 3 Point Floating RM0 & RM060 : ANALOG: A) -0VDC; or B) May be Externally Wired with a 0 Ohm Resistor whih is Supplied for 4-0mA, Zero & Span Adjustable PULSE WIDTH MODULATION: Time Base of Seonds/0mS Resolution or Seonds/mS Resolution Seleted by Dip Swith Position SWITCH HOT: Tria or Dry Contat, 40mA Max. Swithing Current SWITCH : NPN Transistor, SCR, Tria or Dry Contat 75mA Maximum Swithing Current DIGITAL: 3 Wire/ Position or 4 Wire/3 Point Floating 360 in.lb. or 40 Nm. at Rated Voltage Reversible in. lb. or 0-40 Nm.: Seonds 0 F to + F or -8 C to + C RM0 & RM060: 4-0mA Output (May be Externally Wired for a -0VDC Signal) RT060, RT080 & RM060: 360 in. lb. or 40 Nm. RT060, RT080 & RM060: in. lb. or 0-40 Nm., Se. Closure Through 0 RT & RT080: Mehanial, Fixed at 0 & 80 Amp Resistive, 4VAC UL Reognized QMFZ Fire Rated 4V-5 and Steel NEP08/0 PAGE

10 SB & FP - Two Way Ball Valve with the RT or RM Atuator ALL DIMENSIONS IN INCHES SIZE CV MODEL A B C D E F G H I -/" " " -/" FP E770XS SB F080XS FP F380XS FP G30XS " 370 SB H37XS ST - Three Way Ball Valve with the RT or RM Atuator ALL DIMENSIONS IN INCHES SIZE " CV 47 MODEL ST F0470XS A B C D E F G H I J.4 PAGE 0 NEP08/0

11 Mehanial Installation The NEPTRONIC ACTUATED BALL VALVES are designed for use in hot or hilled water systems that omply to the appliable A.N.S.I. B3 Standard. The installer may proeed with installation when the speifis of the system; i.e., expansions & ontrations of the system and its medium as well as operating pressures are within the toleranes of the partiular unit. TO PREVENT MOISTURE FROM COLLECTING IN THE MOTOR CASING, INSTALL THE MOTORIZED VALVE SUCH THAT THE ACTUATOR IS SUPERIOR TO THE VALVE. NEVER DRILL INTO THE MOTOR CASING! Verify that the pipe onnetions to be threaded into the atuated valve are properly and aurately threaded. The interior and exterior of the pipe should be free of metal shavings and dirt. Clean the threaded onnetions and apply a joint sealant. Teflon tape is reommended. Connet all two way motorized valves with attention to the valve markings and the flow of the system. Rotation is lokwise for "OFF" and ounterlokwise for "ON". Refer to the shematis at right on three way valves and then pipe aording to the flow pattern and the system. Using two wrenhes, seure one on the hex pads nearest the joint being tightened while using the seond wrenh to srew in the threaded end thereby preventing the retainerto body seal from being broken. When all pipe onnetions have been made, proeed with the eletrial onnetions. NORMALLY CLOSED PORT NORMALLY OPEN PORT 0 D 0 D 45 D ROTATION COMMON PORT Overview: Typial 3 Way Valve Flow Pattern NEP08/0 PAGE

12 Wiring Shematis for all valves with the BT atuators INSTALLATION REQUIREMENTS It is reommended that all NEPTRONIC produts be wired to a separate transformer and that that transformer shall servie only NEPTRONIC produts. This preaution will prevent interferene with, and/or possible damage to, inompatible equipment of other manufature. CAUTION! When multiple atuated valves are wired on a single transformer, polarity must be respeted! Long wiring runs reate voltage drops whih may affet the atuator's performane. For Valves with BT0 or BT Atuator: DIP SWITCH POSITIONS For All Valves: Dip Swith # ontrols the diretion of rotation. For reverse ating, plae the swith in the ON position; for diret ating, plae the swith in the OFF position. For Valves with BT060 or BT080 Suffix Only: Dip Swith # ontrols the fail safe diretion either lokwise or ounterlokwise. Refer to the wiring for typial onfigurations. For BT & BT080 Atuators: Position Control Drive CW 3 Point Floating Control Drive CW Mehanial Auxiliary Swithes Connetions for BT are shown at right 8 Connetions 7 for BT are 6 shown at right 8 CLOSED CLOSED COMMON BT BT080 Only 4 3-6VAC 8-3VDC 4 DRIVE CCW 3-6VAC 8-3VDC Please te: Auxiliary swithes are ommon to only the BT and BT080 valve atuators.they are fatory set and fixed at 0 and 80. The rating is amp resistive, 4VAC. For Valves with BT060 or BT080 Atuator: FS Position Control Drive CW Enerdrive CCW FS 3 Point Floating Control Enerdrive CCW Connetions for BT080 are shown above right Connetions for BT080 are shown above right 4 4 DRIVE CCW 3-6VAC 8-3VDC 3-6VAC 8-3VDC FS Position Control Drive CCW Enerdrive CW FS 3 Point Floating Control Enerdrive CW Connetions for BT080 are shown above right Connetions for BT080 are shown above right 4 4 DRIVE CCW 3 DRIVE CCW -6VAC 8-3VDC 3-6VAC 8-3VDC PAGE NEP08/0

13 Wiring Shematis for all valves with the TT or RT atuators INSTALLATION REQUIREMENTS It is reommended that all NEPTRONIC produts be wired to a separate transformer and that that transformer shall servie only NEPTRONIC produts. This preaution will prevent interferene with, and/or possible damage to, inompatible equipment of other manufature. CAUTION! When multiple atuated valves are wired on a single transformer, polarity must be respeted! Long wiring runs reate voltage drops whih may affet the atuator's performane. DIP SWITCH POSITIONS For All Valves: Dip Swith # ontrols the diretion of rotation. For reverse ating, plae the swith in the ON position; for diret ating, plae the swith in the OFF position. For Valves with TT060, TT080, RT060 or RT080 Suffix Only: Dip Swith # ontrols the fail safe diretion either lokwise or ounterlokwise. Refer to the wiring for typial onfigurations. TT0, TT, RT0 & RT: Position Diret Ating TT060, TT080, RT060 & RT080: Position Drive CW, Enerdrive CCW Position Drive CCW, Enerdrive CW FS FS U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT RT ONLY U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT080 RT080 ONLY U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT080 RT080 ONLY CONTROL POWER -6VAC 8-3VDC -6VAC 8-3VDC DRIVE CCW -6VAC 8-3VDC 3 Point Floating Diret Ating 3 Point Floating Drive CW, Enerdrive CCW 3 Point Floating Drive CCW, Enerdrive CW FS FS U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT RT ONLY U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT080 RT080 ONLY U CLOSED 80-0 U CLOSED 0-80 U COMMON L CLOSED 0-0 L CLOSED 0-0 L COMMON TT080 RT080 ONLY DRIVE CCW DRIVE CCW DRIVE CCW CONTROL CONTROL CONTROL POWER -6VAC 8-3VDC POWER -6VAC 8-3VDC POWER -6VAC 8-3VDC NEP08/0 PAGE 3

14 Wiring Shematis for all valves with the BM, TM or RM atuators INSTALLATION REQUIREMENTS It is reommended that all NEPTRONIC produts be wired to a separate transformer and that that transformer shall servie only NEPTRONIC produts. This preaution will prevent interferene with, and/or possible damage to, inompatible equipment of other manufature. CAUTION! When multiple atuated valves are wired on a single transformer, polarity must be respeted! Long wiring runs reate voltage drops whih may affet the atuator's performane. -0VDC: For 4-0mA: Pulse Width Modulating: 3 Point Floating: Position: FEEDBACK (4-0mA) -0VDC CONTROL SIGNAL 4VAC/VDC AC DC COMMON Wire the atuated valve aording to the diagram at left for -0VDC. Connet one of the supplied 0 ohm resistors between terminals and 3. The atuator will now respond to a 4-0mA signal FEEDBACK (4-0mA) PWM CONTROL SIGNAL 4VAC/VDC AC DC COMMON FEEDBACK (4-0mA) DRIVE CCW 4VAC/VDC AC DC COMMON 5 FEEDBACK (4-0mA) 4 DRIVE CCW 3 4VAC/VDC AC DC COMMON For -0VDC Output Feedbak: For any of the above wiring onfigurations, onnet one of the supplied 0 ohm resistors between terminals and 5 to hange the output feedbak from 4-0mA to -0VDC. SIGNAL INPUT SELECTION The atuated valves are fatory set to aept the analog mode, i.e. -0VDC; however, to aept PWM, Position or 3 Point Floating ontrol or to reestablish analog ontrol, follow this sequene.. Remove power to the atuated valve.. Put the 3 dip swithes in the OFF position. 3. Apply power and, within 0 seonds, depress & release the Reset Button. The LED should be blinking. 4. Perform one of the following: A. For Analog Control, turn dip swith #3 first ON and then OFF. The unit will now aept -0VDC ontrol. B. For PWM Control, turn dip swith # first ON and then OFF. The unit will now aept PWM ontrol. C. For Position or 3 Point Floating Control, turn dip swith # first ON and then OFF. The unit will now aept digital ontrol. If the atuated valve has been wired orretly, it will now respond to the input signal. The dip swithes may now be set to perform the funtions desribed at right. SPECIAL CONSIDERATION FOR DIGITAL CONTROL THE RESET BUTTON The Reset Button is to be pressed only during alibration of either the Auto Stroking or Zero & Span or reprogramming the ontrol signal as instruted. ON DIP SWITCH POSITIONS DIP SWITCHES 3 FEEDBACK POTENTIOMETER TERMINAL BLOCK 345 DIP SWITCHES ON 3 CLUTCH PIN RESET BUTTON Dip Swith # ontrols the diretion of rotation. For reverse ating, plae the swith in the ON position; for diret ating, plae the swith in the OFF position. Dip Swith # determines the fail safe diretion either lokwise or ounterlokwise. The fatory setting is in the OFF position to 'fail' CCW to the 0 position. To 'fail' to the 0 position, plae the swith in the ON position. LED In this mode, the atuated valves are sensitive to indued eletrial voltages from other soures. To prevent suh interferene, wire one.k ohm 0.5W resistor between pin 4 and pin and a seond.k ohm 0.5W resistor between pin 3 and pin. These resistors are supplied. PAGE 4 Dip Swith #3 determines the Time Base for atuators in the PWM ontrol mode. For 0. to 5 seonds, plae the swith in the ON position. For 0. to 5 seonds, plae it in the OFF position. NEP08/0

15 Calibration for all valves with the BM, TM & RM atuators The BM0/BM060, TM0/TM060 and RM0/ RM060 are miroproessor based motors with an Auto Stroking feature and memory so that the any of them will not have to re-stroke to find itself in the following irumstanes: (A) upon initial power-up (B) after a power failure (C) if the motor is manually repositioned with the luth. These motors are also equipped with a Zero and Span feature that allows sequening of two atuators. THE AUTO STROKING FEATURE All Atuated Ball Valves are fatory alibrated. If for any reason the atuator/linkage and valve are assembled in the field for example during a retrofit or if the atuator has been removed and replaed, the tehniian must perform the Auto Stroking alibration. ) After the atuator has been installed and wired aording to the wiring diagram on page 4 that orresponds to the ontrol signal, use a dediated transformer and apply 4VAC power. The LED will be illuminated. ) One power has been applied, wait a minimum of 0 seonds. Depress and release the Reset Button on the PC board. This initiates the Auto Stroking feature. Over the next minutes, the atuator will self stroke fully up and down during whih time the LED loated on the PC board will remain illuminated. 3) One the LED is extinguished, the Auto Stroking self test is omplete. The valve atuator is now programmed to give a full -0 volt resolution for the stroke of the valve. If a span of less than -0VDC is required, omplete the Zero & Span proedure whih follows. ) After the atuated valve has been installed and wired aording to the wiring diagram on page 4, use a dediated transformer and apply 4VAC power. The LED will be illuminated. ) Within the first 0 seonds of initiating the power supply, press and hold the Reset Button, whih is loated next to the Dip Swithes on the PC board, until the small LED blinks one*. This initiates the Zero & Span alibration. Release the Reset Button. The LED is now onstantly illuminated. 3) The Zero or start value may be any value between 0 to 7 VDC. To set the Zero value, apply a DC voltage aross pins and 3 and adjust the voltage until the desired value is indiated on the test meter. Depress the Reset Button. The LED blinks one; this single blink indiates that the new Zero value has been aepted by the atuator. 4) The Span or stop value an be any value between 3 to 0 VDC and should be at least 3 volts greater than the Zero or start value. To set the Span value, apply a DC voltage aross pins and 3 and adjust the voltage until the desired value is indiated on the test meter. Depress the Reset Button. The LED will blink one indiating that the atuator has aepted the new Span value and has resumed normal operations. 5) Remove the test equipment and replae the over. * The Zero & Span alibration sequene an only be initiated within the first 0 seonds of power being supplied to the motor. This overrides the Auto Stroking feature and redues the risk of inadvertent reprogramming. RE-CALIBRATION The atuator may be re-alibrated to aept different Zero and Span values. To aomplish this, remove the power supply for a suffiient length of time for the motor to reognize a power loss (ex. 5 seonds) and then follow steps through 5 in the ZERO & SPAN FEATURE. THE ZERO & SPAN FEATURE This feature whih is only appliable to -0VDC installations requires a voltage meter. To erase the Zero & Span, follow the SIGNAL INPUT SELECTION diretions on page 4 for Analog Control. The atuated valve will then respond to -0VDC. NATIONAL ENVIRONMENTAL PRODUCTS LTD., INC. MAINTAINS A POLICY OF CONTINUAL PRODUCT DEVELOPMENT; THEREFORE, IN THE INTEREST OF TECHNICAL IMPROVEMENTS, THE FIRM RESERVES THE RIGHT TO CHANGE THE DESIGN, SPECIFICATIONS OR COMPONENTS OF THE EQUIPMENT WITHOUT PRIOR NOTICE. PRINTED IN CANADA national environmental produts montreal,anada NEP08/0