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Jandy Valve ActuatorJVA

Zodiac Pool Systems, Inc.1-800-822-7933www.ZodiacPoolSystems.com

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Sales Representatives____________________________________________________ ext._________

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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 ACTUATORSThe original Jandy Valve Actuator was model number JVA 2400.

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 2440. 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 2444. 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.

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INLET

Jandy Valve Actuator


JVA 2444

JVA 2444

OFF

NEVER LUBEJANDY 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.

INLET

Power Source

Single Pole Double Throw

Toggle switch or relay

Transformer

Motor24 VAC

Capacitor35 μ farrad, 150 volt, Non-polar

Micro switches

Cams Cam lobes are normally clear. They have been colored here for easier identification.Top cam lobe yellow.Bottom cam lobe green.

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.

Smallest slot, of the output shaft is directly above the valve diverter. Normally clear, it has been colored red here for easy identification.

OPERATION

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.

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NOTES:

INLET

OpenCommon Port



JVA 2444

JVA 2444

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.

OFF


INLET

OpenCommon Port

OpenClosed

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.

The word OFF on the handle is directly above the valve diverter. In this diagram the left port is closedthe right port is open and the center port is common to these two ports.

OFF


INSTALLATION Standard Plumbing

Standard Mounting

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NOTES:

HOTCHAUD

IntakeJVA

ReturnJVA

Pool Return

SpaReturn

PoolIntake

SpaIntake

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.

ON 1 OFF ON 2 ON 1 OFF ON 2

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NOTES:

SYNCHRONIZATION

INLET

Jandy Valve ActuatorJandy Valve Actuator

Standard Plumbing

Standard Mounting

Examples of when cam adjustment is required

Common Port

CommonPort

INLET


90 degree rotation Requires cam adjustment

INLET


180 degree rotation opposite of standardRequires cam adjustment.

90 degree rotation Requires cam adjustment

CommonPort

INLE

T


Cam adjustment not required

Common Port

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NOTES:

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.

INLETThe 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 counter-clockwise rotation.

3. The lower cam stops clockwise rotation.

1. Smallest slot

2. Upper cam

3. Lower cam

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 flip-ping the toggle switch to the original position. Make final adjustment as necessary.

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NOTES:

CAM SETTING

INLET

Jandy Valve ActuatorJandy V

alve Actuator

Actuator reverses on its own. • Glue in valve body• Failed capacitor

INLET


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

INLET


Actuator rotates 360 degrees and does not stop.

• Micro-switch damaged.• Cam spinning on output shaft.• Wires to the micro-switch shorted together.

INLET


Actuator rotates in one direction but will not rotate back.

• White or red wire damaged. • Micro-switch damaged• Toggle switch damaged

Problem Possible Causes

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NOTES:

TROUBLESHOOTING

12 JVA Oct 2010

jandy valve actuator jva...inlet jandy valve actuator jva 2444 off never lube jandy valve the...

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