Jandy Valve Actuator JVA

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1 JVA 1

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3 Zodiac Pool Systems, Inc Instructor ext. Sales Representatives ext. ext. ext. Service Manager ext. ext. 3

4 Table of Contents JANDY VALVE ACTUATOR SPECIFICATIONS.. 4 TYPE AND USAGE OF JANDY VALVE ACTUATORS.. 4 OPERATION 5 INSTALLATION...6 SYNCHRONIZATION... 7 CAM SETTING...8, 9 TROUBLESHOOTING...10 SPECIFICATIONS Model 2444 Voltage = 24 VAC Amperage = 0.75 Hertz = 60 Hz Torque = 180 inch pounds 34 seconds to rotate 180 degrees Three wire connection Black = Common White = Counter clockwise rotation Red = Clockwise rotation TYPES AND USAGE OF JANDY VALVE ACTUATORS The original was model number JVA This actuator had an aluminum housing, three cog gear train and no toggle switch. Shortly after the introduction of this unit a toggle switch was added to the rear of the housing. The toggle switch reduced the time needed when setting cams and made synchronization a snap. Cam setting required a small Allen wrench which was located under the lid of the actuator. The second generation of the actuator was the JVA The housing of this model was made from plastic and a fourth gear was added to the gear train. The fourth gear increased torque by 50% and slowed the output shaft rotation by 50%. The cam were held in place by a lock ring. Setting cams required loosening this ring with a wrench or pliers. The third generation of the actuator is the JVA This current actuator incorporates a complete redesign of the housing and cam capture. The redesigned housing improves sealing against water intrusion and the cam design is both held by a bridge and ratcheted to ease cam setting procedure. No tools are needed when setting cams. The toggle switch has been repositioned to the bottom of the housing increasing its protection from accidental damage or use. 4

5 OPERATION OFF NEVER LUBE JANDY VALVE The actuator is set from the factory to rotate 180 degrees from the left port to the right port and back again without crossing over the common port. The next slide shows the electrical components of the actuator. JVA 2444 Smallest slot, of the output shaft is directly above the valve diverter. Normally clear, it has been colored red here for easy identification. Micro switches Cams Cam lobes are normally clear. They have been colored here for easier identification. Top cam lobe yellow. Bottom cam lobe green. Transformer Power Source Single Pole Double Throw Toggle switch or relay Motor 24 VAC To operate a actuator requires a 24 VAC transformer and a single pole double throw switch or relay. There are two cams stacked one above the other. The lower cam stop clockwise rotation by tripping the lower micro-switch. The upper cam stops counter-clockwise rotation by tripping the upper micro-switch. Capacitor 35 μ farrad, 150 volt, Non-polar When power is sent from the switch or relay through one of the switch wires (in this case the red wire) it passes through the micro- switch to the motor and completes the circuit through the black (common) wire. The motor shaft spins, rotating the gear train and the output shaft. Since the cams are attached to the output shaft, the cams rotate, along with the shaft, until the cam lobe reaches the micro-switch which trips the circuit and stops rotation. NOTES: 5

6 INSTALLATION Standard Plumbing Closed OFF NEVER LUBE JANDY VALVE Open Since the actuator will be mounted on a valve it is a good idea to understand the relationship between the valve diverter, valve handle and actuator mounting. Open Common Port The word OFF on the handle is directly above the valve diverter. In this diagram the left port is closed the right port is open and the center port is common to these two ports. Standard Mounting OFF NEVER LUBE JANDY VALVE Then align the actuator shaft with the valve diverter shaft and mount the actuator using the screws provided with the actuator. Put the valve handle onto the actuator shaft and screw on the locking knob. Do not over tighten the locking knob. Open Common Port JVA 2444 NOTES: 6

7 SYNCHRONIZATION If the valves are plumbed as shown here, with the Pool Return connected to the right side of the valve and the Pool Intake connected to the left side port of the other valve, the toggle switches, for the two actuators, will need to be positioned opposite of each other. Pool Intake Spa Intake Spa Return Pool Return Intake JVA Return JVA HOT CHAUD ON 1 OFF ON 2 ON 1 OFF ON 2 NOTES: 7

8 CAM SETTING Cam setting is necessary when the valve is plumbed with one of the ports, other than the center port, as the common port or the actuator is mounted other than standard mounting. Cam setting can also be done when a bypass is needed or to send partial flow to a water feature. Cam adjustment not required Examples of when cam adjustment is required Standard Plumbing Standard Mounting Common Port Common Port 180 degree rotation opposite of standard Requires cam adjustment. Common Port Common Port 90 degree rotation Requires cam adjustment 90 degree rotation Requires cam adjustment NOTES: 8

9 CAM SETTING 2. Upper cam 1. Smallest slot 3. Lower cam The 3 keys to cam setting are: 1. The smallest slot on the output shaft is directly above the valve diverter. 2. The upper cam stops counterclockwise rotation. 3. The lower cam stops clockwise rotation. Start by removing the locking knob and handle. Unscrew the four actuator lid screws, then remove the lid. Put the handle back onto the output shaft so the travel is easier to see. Flip the toggle switch to the opposite position to rotate the output shaft. When the handle, and thus the diverter, reaches the desired position put the toggle switches in the center (off) position. Remove the locking knob and handle to access the cams. Since the rotation was in the clockwise direction, spin the lower cam in the same direction (clockwise) until it contacts the lower micro-switch. Test the operation by flipping the toggle switch to the original position. Make final adjustment as necessary. NOTES: 9

10 TROUBLESHOOTING Problem Actuator reverses on its own. Possible Causes Glue in valve body Failed capacitor Actuator oscillates back and forth at the port. Glue in body at port entry. Seal of gray valve needs lubrication. (replace with NeverLube diverter) Debris in valve body. Problem Possible Causes Actuator rotates 360 degrees and does not stop. Micro-switch damaged. Cam spinning on output shaft. Wires to the micro-switch shorted together. Actuator rotates in one direction but will not rotate back. White or red wire damaged. Micro-switch damaged Toggle switch damaged NOTES: 10

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