Damper Actuator Installation

Transcription

1 FANs 268.1, 977, Installation Bulletin EPP-1000 Issue Date 0800 EPP-1000 Series Electro-Pneumatic Positioners A pplication The EPP-1000 is designed for applications where electronic control of pneumatic actuators is desired, particularly when there is a need for accurate or precise actuator positioning. Typical applications include control of damper actuators, inlet guide vanes and valve actuators on air handling units, large commercial unitary equipment (such as rooftops), mixing plenums, and chilled water systems. Models with a feedback potentiometer may be used to provide information for use in monitoring or documenting damper positions. Additionally, multiple EPP-1000s may be sequenced off a single control signal through the use of staggered offset and span settings. The EPP-1000 can also be used in electronic retrofits of pneumatic systems. The EPP-1000 mounts directly to the controlled device (actuator) through a quick-release mounting band. This provides the flexibility to adapt to differently shaped actuator housings (Figure 1). Band No Taptite Screw Crank Arm Actuator Supply Fitting Output Fitting Supply Fitting Feedback Cable (Parallel to the Actuator Shaft) Feedback Arm Swivel Ball Joint Assembly Figure 1: EPP-1000 without a Cover Mounted on a Damper Actuator Damper Actuator Installation Parts Included EPP or EPP quick-release mounting band feedback cable feedback arm assembly feedback arm* No Taptite screw, 1/2 in. No square nut cable clamping block No pan-head screws, 9/16 in. (2) * A second unassembled straight feedback arm is included for D-3244 and D-3246 installations only. Tools Needed flat-blade screwdriver 5/16 in. hex socket wrench (for valve installations) 1/4 in. polyethylene or urethane tubing Getting Started IMPORTANT: For new installations, mount the positioner and feedback arm assembly (included with the EPP-1000) prior to installing the actuator. The unit enclosure has provisions to accept a conduit connector, and wiring connections are made to a terminal block. Pneumatic connections are made to two barbed fittings on the exterior of the enclosure. The feedback cable connects the EPP-1000 and the actuator shaft through a feedback arm assembly that is directly coupled to the actuator shaft Johnson Controls, Inc. 1 Part No , Rev. D Code No. LIT

2 To mount the EPP-1000 to a damper actuator: 1. Remove the pneumatic supply to the damper actuator. 2. Loosen the cover screw, and remove the cover. (See Figure 2.) Cover Cover Screw Figure 2: Removing the EPP-1000 s Cover 3. Thread the feedback cable, ball end last, through the hole in the outer pulley from the inside of the pulley. (See Figure 3). The ball will fit into the slot and hold the cable in place. Wind the cable in this direction. Slot for the feedback cable is located at the bottom corner of the housing. Outer Pulley Figure 5: Installing the Band 6. Place the positioner in the middle of the actuator body (as shown in Figure 1) with the EPP-1000's supply and output fittings pointing in the same direction as the actuator s supply fitting. 7. Place the band around the actuator, feed the end through the screw block, and push the screw down to close the clamp. 8. Tighten the screw on the clamp until the band is secure. Note: Do not completely tighten the band at this time, so the positioner can be re-aligned after the feedback cable is in place. 9. Proceed to the Installing the Feedback Arm Point of Insertion for the Feedback Cable Figure 3: Inside View of an EPP-1000 Inner Gear 4. Pull the cable through the slot in the lower corner of the base. (See Figure 4.) Installing the Feedback Arm D-3073 and D-3153 Damper Actuators The cable clamping block and the two No screws come factory assembled. For D-3073 installations, remove these screws from the outer holes (shown in Figure 6), re-install the cable clamping block using the two inner holes, and proceed as follows: No Square Nut D-3073 Holes No Screws (2) Feedback Cable No Taptite Screw Cable Clamping Blocking Holes for all remaining damper actuator installations Figure 4: EPP-1000 Mounted to an Actuator Figure 6: Feedback Arm Assembly 5. Thread the quick-release mounting band through the two slots in the mounting bracket on the underside of the EPP (See Figure 5.) 2 EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin

3 1. Tighten the two No screws on the feedback arm assembly, leaving enough space to thread the feedback cable between the cable clamping block and the feedback arm. 2. Loosen the swivel ball joint on the actuator, and remove the crank arm linkage from the shaft. Slide the feedback arm onto the shaft close to the actuator shaft nut. (See Figure 1.) 3. Using the feedback cable as a guide, position the feedback arm so that it will hold the feedback cable parallel to the actuator shaft. Note: Make sure the feedback arm is free and clear of any obstacles as the actuator shaft strokes. 4. Secure the feedback arm by tightening the No screw provided. Note: Do not completely tighten the screw at this time, so that the feedback arm can be realigned later. 5. Reconnect and tighten the swivel ball joint assembly to the actuator shaft. 6. Proceed to the Installing the Feedback Cable D-3244 and D-3246 Damper Actuators For D-3244 and D-3246 installations, proceed as follows: 1. Remove the clamping block and two No screws from the factory-assembled feedback arm. 2. Reassemble the clamping block and screws to the straight feedback arm as shown in Figure 7. Note: Leave enough space to thread the feedback cable between the cable clamping block and feedback arm. Straight Feedback Arm No Pan-head Screws (2) Cable Clamping Block Figure 7: Assembling the Clamping Block to the Straight Feedback Arm 3. Loosen the locknut on the actuator shaft, and slide the feedback arm into the slot on the clevis. (See Figure 8.) Cable Clamping Block Straight Feedback Arm Locknut Washer Clevis Figure 8: Assembling the Feedback Arm to the Clevis 4. Using the feedback cable as a guide, position the end of the feedback arm so that the cable will be held parallel to the shaft. Note: If necessary, reposition the EPP-1000 on the actuator so that the cable can run parallel to the shaft. 5. Secure the feedback arm in place. Note: Do not completely tighten the locknut, so that the feedback arm can be adjusted when the feedback cable is set up on the EPP Proceed to the Installing the Feedback Cable Installing the Feedback Cable Dampers For damper applications, proceed as follows to install the feedback cable: 1. Wind the cable Clockwise (CW) three times around the track on the outside of the outer pulley. (See Figure 3.) 2. Thread the cable between the cable clamping block and the feedback arm. (Do not clamp the cable clamping block at this time.) 3. Make sure the cable is parallel to the actuator shaft by adjusting the feedback arm or repositioning the EPP-1000 until the cable is parallel to the shaft. 4. Securely tighten the feedback arm to the actuator shaft. 5. Tighten the quick-release mounting band. Note: For D-3244 and D-3246 installations, tighten the locknut securing the feedback arm on the actuator shaft. 6. Proceed to Calibration, Feedback Cable (Dampers and Valves) EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin 3

4 Valves For valve applications, proceed as follows to install the feedback cable: 1. Place the feedback cable along the track at the top of the gear, and feed the ball end of the cable through the notch in the positioner s housing. (See Figure 9.) Inner Gear Ball End of the Feedback Cable Figure 9: Inside View of the Gear and Pulley 2. Thread the feedback cable between the cable clamping block and the feedback arm. 3. Check that the cable is parallel to the actuator shaft. If it is not, adjust the feedback arm or reposition the EPP-1000 until the cable is parallel to the shaft. (Do not tighten the cable clamping block at this time.) 4. Tighten the screw on the mounting band, the two No pan-head screws holding the retainer to the adaptor bracket, and the two No screws securing the feedback arm in the holding blocks. 5. Proceed to Calibration, Feedback Cable (Dampers and Valves) Valve Actuator Installation Parts Included for 5R and 8R Valve Actuators EPP or EPP quick-release mounting band adaptor bracket* adaptor retainer* No. 8-32, 7/8 in. pan-head screws (4)* holding blocks (2)* feedback arm* No. 4-40, 9/16 in. screws (2)* cable clamping block* feedback cable* * The above items are also included with the 4R valve actuator. Parts Included for a 4R Valve Actuator EPP or EPP mounting bracket** No. 6-32, 5/8 in. pan-head screws (3) spacers (3) locknut washers (3) No /16 in. Taptite screws (2)** ** The above items are also included with the MP8000 valve actuator. Parts Included for an MP8000 Valve Actuator The EPP is the only part included. The MP Kit must be ordered separately. Tools Needed flat-blade screwdriver 3/8 in. and 1/4 in. hex wrenches for No hex-head screws and bushings 9/16 in. open-end wrench for 1/4 in. jam nuts on the MP82 and MP83 actuators 5/8 in. open-end wrench for 3/8 in. jam nuts on the MP84, MP85, MP86, and MP87 actuators open-end adjustable wrench 1/4 in. polyethylene or urethane tubing Getting Started IMPORTANT: For new installations, mount the positioner and feedback arm assembly prior to installing the actuator. Mount the EPP-1000 to a valve actuator as follows: 1. Remove the pneumatic supply to the valve actuator. 2. Loosen the cover screw, and remove the cover. (See Figure 2.) 4 EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin

5 3. Using a 5/16 in. hex wrench, turn the inner gear fully Counterclockwise (CCW) until the slot becomes visible. (See Figure 10.) Catch the ball end of the cable into the slot of the inner gear. Inner Gear Ball End of the Feedback Cable Figure 10: Feedback Cable Installation Installing the Adaptor 4. Attach one No pan-head screw to the adaptor bracket. (Do not completely tighten it.) 5. Guide the end of the adaptor bracket into the valve yoke around the top of the valve coupler nut, being careful not to nick the stem. (See Figure 11.) 6. Place the adaptor retainer on the front of the bracket, using a No pan-head screw to hold it in place. Tighten the screw only enough to hold the retainer in place. 7. Slide the adaptor bracket over the top of the valve coupler nut, and tighten the retainer screws to hold the bracket in place. Note: The arm of the bracket extends perpendicular to the valve stem, so that the bracket does not hit the housing. 8. Proceed to the EPP-1000 to a 4R Valve Actuator or the EPP-1000 to a 5R or 8R Valve Actuator 4R, 5R, or 8R Valve Actuator To install the adaptor bracket to a 4R, 5R, or 8R valve actuator: 1. Assemble the two holding blocks to the end of the extended arm on the adaptor bracket. (See Figure 11). The two holding blocks fit together to allow a space for the feedback arm. MP8000 Valve Actuator To install the adaptor bracket to a MP8000 valve actuator: 1. Attach the feedback arm to the bracket connector, using two No Taptite screws. (See Figure 12). End of Adaptor Adaptor Attached No Pan-head Screw Valve Coupler Nut Valve Stem Holding Blocks Connector No Taptite Screws (2) Cable Clamping Block Upper Jam Nut Valve Stem Figure 11: Fitting the Adaptor around the Actuator Stem 2. Position the holding blocks under the bracket arm as shown if the application involves a 5R or 8R actuator, and over the bracket arm if the application involves a 4R actuator. 3. Secure the holding blocks with two No pan-head screws. Feedback Arm Figure 12: Fitting the Adaptor around the Actuator Stem 2. Assemble the bracket connector to the valve stem between the connector and the upper jam nut. 3. Attach the cable clamping block to the feedback arm, using two No Taptite screws. (Do not tighten the screws.) 4. Proceed to the EPP-1000 to an MP8000 Valve Actuator EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin 5

6 the EPP-1000 to a 4R Valve Actuator Attach the mounting bracket at the tapped holes on the side of the actuator as follows: 1. Using the three spacers, the three No pan-head screws, and the three star locknut washers, attach the bracket to the actuator body. (See to Figure 13.) the EPP-1000 to an MP8000 Valve Actuator Match the three holes in the bracket to the holes in the actuator yoke, and proceed as follows: 1. Attach the mounting bracket to the inside of the yoke, using the three No hex-head screws and the three bushings. Note: The screws are inserted through the mounting bracket from the inside of the actuator yoke, and the bushings hold the screws in position from the outside of the yoke as shown in Figure 15. Spacers (3) are located between the actuator and the bracket. No Pan-head Screws (3) Figure 13: Attaching the 2. Guide the mounting bracket onto the underside of the EPP-1000, over the tab on the end of the mounting bracket. Secure with the two self-tapping No. 4-40, 3/16 in. Taptite screws provided. (See Figure 14.) Bushings (3) hold the screws in position. EPP-1000 No. 4-40, 3/16 in. Taptite Screws (2) Figure 14: Attaching the Figure 15: Attaching the 2. Guide the mounting bracket onto the underside of the EPP-1000, over the tab on the end of the mounting bracket. Secure with the two self-tapping No. 4-40, 3/16 in. Taptite screws provided. (See Figure 14.) 3. Attach the black plastic tubing from the outlet of the EPP-1000 to the inlet of the MP8000 valve actuator. 4. Proceed to Feedback Cable Installation Note: The EPP-1000 mounting bracket is factory assembled to the EPP Attach the black plastic tubing from the outlet of the EPP-1000 to the inlet of the 4R valve actuator. 4. Proceed to Assembling the Feedback Arm and the Clamping Block 6 EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin

7 the EPP-1000 to a 5R or 8R Valve Actuator To mount the EPP-1000 to a 5R or 8R valve actuator: 1. Thread the quick-release mounting band through the two slots in the mounting bracket on the underside of the EPP (See Figure 16.) Figure 16: Quick-release Band Note: Proceed to Assembling the Feedback Arm and the Clamping Block Return to this section to mount the EPP Place the mounting band around the actuator. 3. Place the positioner in the middle of the valve body with the EPP-1000 s supply and output fittings pointed toward the top of the valve. 4. Using the feedback cable as a guide, position the EPP-1000 so the cable can be threaded between the cable clamping block and the feedback arm, while remaining parallel to the actuator shaft. 5. Feed the end of the mounting band through the screw block and snap it closed. Tighten the screw on the mounting band until the band is secure. Note: Do not completely tighten the mounting band at this time, because the positioner may have to be re-aligned after the feedback cable is in place. 6. Attach the black plastic tubing from the outlet of the EPP-1000 to the inlet of the 5R or 8R valve actuator. 7. Proceed to the Feedback Cable Installation Assembling the Feedback Arm and the Clamping Block 4R, 5R, or 8R Valve Actuator To assemble the feedback arm and the clamping block to a 4R, 5R, or 8R valve actuator: 1. Attach the cable clamping block to the feedback arm, using two No. 4-40, 9/16 in. pan-head screws. Note: Leave enough space to allow for the feedback cable to be inserted between the cable clamping block and the feedback arm. (See Figure 17.) Adaptor Note: Mount the holding blocks as shown on 5R and 8R valve actuators. Mount them on top of the adaptor bracket if the EPP-1000 is mounted on a 4R valve actuator. Cable Clamping Block Feedback Arm Holding Blocks No. 4-40, 9/16 in. Pan-head Screws (2) Figure 17: Feedback Arm Assembly 2. Insert the end of the feedback arm between the holding blocks, and tighten the screws on the holding blocks. Note: Do not completely tighten the screws on the holding blocks to allow for repositioning of the feedback arm if necessary. Feedback Cable Installation Dampers To install the feedback cable in damper applications: 1. Wind the cable CW three times around the track on the outside of the outer pulley. (See Figure 18.) Wind the cable in this direction. Slot for the feedback cable is located at the bottom corner of the housing. Outer Pulley Inner Gear Point of Insertion for the Feedback Cable Figure 18: Winding the Feedback Cable onto the Pulley EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin 7

8 W iring 2. Thread the cable between the cable clamping block and the feedback arm. (Do not clamp the cable clamping block at this time.) Note: Check that the cable is parallel to the actuator shaft. If it is not, adjust the feedback arm or reposition the EPP-1000 until the cable is parallel to the shaft. 3. Securely tighten the feedback arm to the actuator shaft. 4. Tighten the quick-release mounting band. Note: For D-3244 and D-3246 installations, tighten the locknut securing the feedback arm to the actuator shaft. 5. Proceed to Calibration, Feedback Cable (Dampers and Valves) Valves To install a feedback cable in valve applications: 1. Place the feedback cable along the track at the top of the gear. (See Figure 10.) Place the ball end of the cable through the notch in the positioner s housing. 2. Thread the feedback cable between the cable clamping block and the feedback arm. Note: Check that the cable is parallel to the actuator shaft. If it is not, adjust the feedback arm or reposition the EPP-1000 until the cable is parallel to the shaft. (Do not tighten the cable clamping block at this time.) 3. Tighten the screw on the mounting band, the two No pan-head screws holding the retainer to the adaptor bracket, and the two No screws securing the feedback arm in the holding blocks. 4. Proceed to Calibration, Feedback Cable (Dampers and Valves) EPP-1000 without the Additional Feedback Potentiometer (EPP , 11, 12, and 13) IMPORTANT: Make all wiring connections in accordance with the National Electrical Code and local regulations.! WARNING: Electrical Shock Hazard. Disconnect the power supply to the EPP-1000 before wiring connections are made to prevent possible electrical shock or damage to the equipment. The EPP-1000 requires a 20 to 30 VAC power signal. Proceed as follows to wire: 1. Route the wires from the controller to the EPP-1000 through the conduit hole in the housing. 2. Connect the power to the AC and COM terminals. (See Figure 19 for terminal board selections.) Note: Do not connect the input signal at this time. 3. Proceed to the Calibration Direct and Reverse Acting Jumper Supply and Exhaust LEDs Terminal Board Selections AUX IN 1V 5V AC COM IN P1 P2 P4 P5 DA P3 RA ma VDC J1 W2 FEEDBACK SUPPLY EXHAUST STROKE HOME Figure 19: EPP-1000 Terminal Board OFFSET SPAN P1-P5 jumper allows calibration without an input. Input Signal Jumper Offset Stroke Span Home 8 EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin

9 EPP-1000 with the Additional Feedback Potentiometer (EPP , 22, and 23) Follow these wiring procedures for the EPP , 22, and 23 models: 1. Make sure the three white striped wires are field connected to the wires from the external monitor through the conduit hole at the top of the EPP Note: The white/violet wire is the retracted end, the white/orange is the wiper, and the white/brown is the stroked end. 2. Connect the three wires to the appropriate terminals of the external device. C alibration EPP-1000 Electro-Pneumatic Positioner Calibration of the EPP-1000 is a two part process. The feedback cable is calibrated first, and the potentiometer positions are set afterwards. The EPP-1000 has four adjustment potentiometers, which correspond to the following actuator positions in direct acting applications as shown in Figure 20. Actuator s Stroke Note: 100% 0% Offset Span Home Input Stroke Figure 20: Potentiometer Settings for DA Applications Figure 20 is similar for reverse acting applications, except the stroke occurs at an input below offset rather than at an input above offset. Home: The percentage of stroke above the actuator s minimum position, which defines the minimum point at which the EPP-1000 will begin to stroke the actuator. Stroke: The EPP-1000 s full stroke range. Offset: Span: The minimum input signal value before the EPP-1000 will begin to stroke the actuator. The input signal range over which the EPP-1000 will stroke the actuator. Feedback Cable (Dampers and Valves) To calibrate the feedback cable: 1. Apply 24 VAC power to the AC and COM terminals. Note: Do not connect the pneumatic supply and the controller s input signal at this point. 2. Put the DA/RA jumper in the DA position. 3. Put the input signal jumper in the VDC position. 4. Set the four potentiometers to the following factory-calibrated settings: Note: If the factory-calibrated settings for offset and span are acceptable, do not change the settings of the offset and span potentiometers. Stroke: Fully CCW Home: Mid position Offset: Mid position (Do not change if using the 1 volt factory setting.) Span: Fully CCW (Do not change if using the 8 volt factory setting.) 5. Pull the feedback cable out of the EPP-1000 until the cable stops, and hold it taut. 6. Let the feedback cable back into the EPP-1000, and stop at the point when one Light-Emitting Diode (LED) is on and the other is off. 7. Keeping the feedback cable taut, clamp the cable with the cable clamping block by tightening the two No screws. 8. Connect the input signal to the IN terminal. 9. To set the Stroke and Home, refer to Setting the Stroke and Home 10. To set the offset and span, refer to the Setting the Offset and Span EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin 9

10 Setting the Stroke and Home If the factory-calibrated settings (1 volt offset, 8 volt span) are appropriate for the application, skip this The stroke position should be adjusted for each application. Make sure the power to the EPP-1000 is off. To set the stroke, proceed as follows: 1. Turn the stroke potentiometer fully CW. 2. Connect a small jumper wire between the 15V and IN terminals. 3. Apply power and air to the EPP The actuator shaft will extend, and both LEDs will be lit. 4. Wait until the actuator shaft is fully extended, and slowly turn the stroke potentiometer until one LED is off, and the actuator is at the desired full stroke position. Note: Turning the stroke potentiometer CCW retracts the actuator shaft. 5. Remove the jumper wire from the 15V and IN terminals. The actuator shaft will retract. 6. At this point, one LED is on, and one off. If this is not the case, adjust the home potentiometer until one LED is on, one LED is off, and the actuator is at the desired home position. 7. If the factory settings for offset and span are appropriate (1 volt offset, 8 volt span), then calibration is complete. Setting the Offset and Span Determine the input signal and select the appropriate jumper using Table 1. Table 1: Input Jumper Signal Selections Input Signals Input Terminal Selections Input Signal Jumpers Proceed as follows to set the offset and span: 1. Wire from the controller through the conduit hole on the EPP-1000 housing to the appropriate terminals. 2. Select the DA or RA jumper position. 3. Set the potentiometers to the following positions: Offset: Fully CW Span: Mid position 4. Apply the input signal corresponding to the actuator s fully retracted position. Note: The P1-P5 jumper allows calibration without an input from a controller. For normal operation, the P1-P5 jumper must be in the A position. When the input signal jumper is in the VDC position, putting the P1-P5 jumper in the B position supplies 1 VDC to the input. Putting the P1-P5 jumper in the C position supplies 9 VDC to the input, regardless of the input signal that is being applied to the input terminal. 5. Adjust the offset potentiometer until the actuator shaft just begins to move. Note: Repeat Step 5 until the smallest movement possible is achieved. 6. Apply the input signal or jumper position corresponding to the full-stroke position, and the actuator shaft will extend. 7. Turn the span potentiometer fully CCW. 8. Adjust the span potentiometer until the actuator shaft just begins to retract. 9. Repeat Step 8 until the smallest movement possible is achieved. The EPP-1000 is now calibrated. Check that the P1-P5 jumper is back in the A position. Voltage IN and COM VDC Current AUX IN and COM ma Slidewire 1V, AUX IN, and COM VDC 10 EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin

11 Table 2: Troubleshooting Procedures Symptom Possible Cause Corrective Action Cannot set stroke or home potentiometer. Cannot set offset and span potentiometer. EPP-1000 is not responding to the control signal. Actuator does not move. Actuator does not fully stroke. Actuator does not fully retract. Feedback cable is wound incorrectly. Feedback cable is installed on the wrong gear or pulley. Offset and span potentiometers are not in the proper positions for calibration. Input jumpers are in the wrong position. Air is not connected. Power is not applied. Jumper wire is not in place. Power is not applied. Input jumpers are in the wrong position. Stroke and home potentiometers are set improperly. Feedback cable is wound incorrectly. Feedback cable is installed on the wrong gear or pulley. P1-P5 jumper is not in A position. Input is not connected. Air is not connected. Air is not connected. Power is not applied. Feedback cable is not properly calibrated. See the Feedback Cable Installation See the Feedback Cable Installation Reset the offset and span as described in the Calibration See the Calibration, Setting the Stroke and Home Connect the air supply. The EPP-1000 requires a 20 to 30 VAC power signal. See Step 2 in the Calibration, Feedback Cable (Dampers and Valves) The EPP-1000 requires a 20 to 30 VAC power signal. Set the input jumpers in the correct positions. (See Table 1.) See the Calibration, Setting the Stroke and Home See the Feedback Cable Installation See the Feedback Cable Installation Check that P1-P5 jumper is in the A position. Connect the control signal to the IN terminal. Connect the air supply. Connect the air supply. The EPP-1000 requires a 20 to 30 VAC power signal. Refer to the Calibration, Feedback Cable (Dampers and Valves) EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin 11

12 Table 3: Specifications Product Power Requirements: Pneumatic Air Supply Electrical Wiring Connections Pneumatic Connections EPP-1000 Series Electro-Pneumatic Positioners 25 psig (172 kpa) maximum 20 to 30 VAC; 50/60 Hz (Product can also be powered with 22 to 30 VDC by connecting the power supply positive to AC and the power supply negative to COM.) Screw terminals Barbed fittings for 5/32 or 1/4 in. O.D. polytubing Input Signal IN: 30 VDC maximum AUX IN: Voltage configuration = 3 VDC maximum Current configuration = 30 ma maximum Slidewire control = 135 to 1000 ohms Impedance IN: 27,000 ohms AUX IN: Voltage configuration = 3,000 ohms (current configuration = 100 ohms) Adjustments: Home Stroke Offset Allows the minimum position of the actuator to be adjusted between 0 and 33% of full stroke. Allows full stroke adjustment between 33 and 100% of the total feedback potentiometer stroke. Allows adjustment of the input signal level at which the actuator starts to move from the home position. Span Allows adjustment of the input signal level at which the actuator reaches its full stroke. Range of Adjustments: Home, Stroke, Offset Span IN 0 to 22.5 VDC 1 to 18 VDC AUX IN (Voltage) 0 to 2.5 VDC 0.1 to 2 VDC (Current) 0 to 25 ma 1 to 20 ma (Slidewire) 0 to 100% 10 to 100% of slidewire Feedback Potentiometer (EPP , 22, 23 only) 10,000 ohm linear taper potentiometer Ambient Operating Temperature Limits Ambient Storage Temperature Limits Humidity Hysteresis Linearity Flow Characteristics Shipping Weight Dimensions (H x W x D) -20 to 150 F (-29 to 65 C) -20 to 167 F (-29 to 75 C) Maximum 95% RH, limited to 85 F maximum dew point 3% of span 5% of span 20 psig, 476 scim (138 kpa, 130 ml/s) 1.6 lb (0.73 kg) 4-5/16 x 4-1/2 x 3-13/64 in. (110 x 114 x 81 mm) Agency Compliance UL 916 Listed, File E CSA C22.2 No. 205 Certified, File LR68965 The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. Controls Group 507 E. Michigan Street P.O. Box 423 Milwaukee, WI Printed in U.S.A EPP-1000 Series Electro-Pneumatic Positioners Installation Bulletin