MAC FAUCETS AUV-2 Automatic Flush Valve Owner’s Manual

MAC FAUCETS AUV-2 Automatic Flush Valve

Product Information

Specifications :

• Models: AUV-2 and ATV-2
• Operation: Automatic sensor-activated flushing system
• Power Source : Batteries (pre-installed)
• Installation: Wall-mounted
• Usage : Urinals and toilets

Product Usage Instructions

Installation Procedure

1. Place tube sleeve oversupply bib in the wall.

2. Slide the supply flange over the tube sleeve and fasten it using an
   Allen wrench.

3. Fasten stop to pipe bib using plumber’s putty.

4. Mount spud coupling to the urinal or toilet spud.

5. Install flush connection to spud coupling.

6. Insert vacuum breaker into flush connection.

7. Run water through stop valve to clear the pipes.

8. Place the flush valve on top of the flush connection and tighten the connections.

9. Align the sensor window and tighten Allen anchors.

10. Turn on the water, check for leaks, and adjust the flow rate if needed.

Operation:

1. The sensor detects an object and blinks a red light.
2. The object must be present for 8-10 seconds to initiate flushing.
3. To manually flush, depress the push button on the valve.

Sensor Range Setup:

The sensor range is factory preset and not adjustable in the field.

Battery Replacement:

Ensure the sensor lens is clean and use fresh Duracell Copper Top batteries for replacement.

Troubleshooting :

If the valve does not operate or the red light does not respond:

• Check user proximity and sensor alignment.
• Ensure batteries are properly installed.
• Check for loose or improperly plugged sensor wires.
• Contact MAC Faucets for further instructions if needed.

If the red light blinks in response to an approaching user:

• Check the water supply, pressure, and screen filter.
• Replace batteries if low or defective.
• If the sensor range is short, consider replacing the sensor.

FAQ

• Q: Can the sensor range be adjusted manually?
  • A : No, the sensor range is factory preset and not field adjustable.
• Q: How do I know when to replace the batteries?
  • A : If the red light does not respond or blinks irregularly, it might indicate low battery levels. Replace with fresh batteries.

Installation procedure

Please remember the following: Valves are shipped with batteries pre-installed and a cover over the sensor eye. When necessary to remove batteries never attempt to remove batteries by pulling hard on battery wire.

1. Place tube sleeve over supply bib that is present in the wall.
2. Slide supply flanges over tube sleeve, press against wall. Using an Allen wrench fasten the supply flange to tube sleeve.
3. Using the plumber’s putty, fasten the stop to the pipe bib.
4. Mount spud coupling (spud flange, rubber washer, thrust washer, spud nut) to urinal or toilet spud. Keep spud nut loose in preparation for step 5.
5. Install flush connection to spud coupling by inserting connection through spud nut. Tighten spud nut
6. Insert the vacuum breaker into flush connection as shown in the drawing.
7. Run water through stop valve at high volume for 1-2 minutes in order to clear dirt and debris out of pipes prior to installing the flush valve. Use a container to capture running water.
8. Place flush valve on top of flush connection, mate valve body with stop valve.
9. Hand tighten both connection nut and stop nut a few turns each at a time. This will ensure that the nuts are threaded properly to their prospective male counterparts. (Do not cross thread).
10. Place heavy cloth over nuts in order to protect the finish and tighten using a wrench.
11. Loosen the Allen anchors using a supplied wrench (1 or 2 turns), and align the sensor window so it is facing forward and looking over the toilet or urinal. Tighten Allen screw (Do not over-tighten).
12. Turn the water on and check for leaks.
13. The water flow rate is adjusted with a flow adjuster screw within the stop valve.
14. For urinal application turn the water flow rate (DE method).
15. Remove the cover that covers the sensor window in order to begin operation.

Operation

1. The sensor senses the object (body) and begins blinking a red light. The object must be present in front of the sensor for 8-10 seconds in order to prevent accidental flushing.
2. Once the object has left the sensor area (toilet urinal stall) a delay of 2-3 seconds may occur after which the toilet or urinal will flush.
3. For manual operation depress the push button (located atop the valve) and release.

Please remember automatic toilets and urinals utilize presence sensors and not motion sensors. Moving an object in front of the sensor rapidly will only delay or prevent proper flushing.

Sensor Range Setup:

The sensor range is factory preset and is not field adjustable.

Battery replacement

The valve is shipped with 4 AA batteries pre-installed. When necessary to replace batteries:

1. Unfasten upper Allen screw in the back of the valve, and pull the battery access cap off (have a towel handy to rap the top cap with a towel. This will prevent damage to valve finish). Pull the battery enclosure out of the valve and disconnect be careful not to cut battery wires.
2. Place batteries in the proper order. It is advisable to use high-quality batteries for this task.
3. After the batteries have been inserted in their proper order, re-plug the battery compartment, place the valve cap back on, and refasten the Allen screw.
4. At this time the sensor will take a few moments to adjust to the room’s environment after which the valve will be ready for operation

Trouble Shooting

(Always make sure that sensor lens is clean and Duracell Copper Top batteries are fresh)

The valve does not operate, red light does not in respond to approaching users:

1. The user out of range or not in line with the sensor (the sensor must be facing the user).
2. Batteries need replacing. See battery replacement instructions.
3. Batteries installed improperly in battery pack, battery harness not plugged in properly, see installation instruction, and battery replacement instructions.
4. Sensor wire loose, unplugged, plugged improperly, plug sensor wire properly. Please call MAC Faucets for instructions if necessary.

The valve does not operate, red light blinks in response to approaching user:

1. No water, very low water pressure in supply pipes, supply valves closed.
2. Water pressure very high, well above 100 PSI.
3. The screen filter is severely clogged up (V3 valves with screen filter located in a tail pipe).
4. Batteries low or defective, replace batteries.
5. The sensor range has become short. Replace Sensor.

The valve operates on and off “by itself”:

1. The sensor range is adjusted too long and must be adjusted for a shorter range. Please call MAC Faucets for instructions.
2. Objects (such as toilet lid) may be present in close proximity to the sensor.
3. The manual button is defective. Replace the manual button.

Valve leaks drips:

Constant leaks or drips indicate defective cluster valves or particulates that are wedged under the piston. Clean the piston valve seat, send the valve for repair or contact a plumbing professional.

Loud thud noise when the valve flushes.

This is an issue commonly associated with diaphragm/piston-type valves such as washing machine valves, dishwasher valves, etc. The noise is generally present in the piping system. Clear winner remedies are to:

1. Lower water flow rate (see flow rate adjustment section of this manual).
2. Install “hammer arrestors” in close proximity to your valve. Please consult a plumbing professional for this task.

Runaway flush valve, water runs out of the valve continuously, and does not stop.

1. Make sure batteries are installed properly (flush valve will stay open even when batteries are completely spent.
2. Make sure that 2 wire plugs inside the valve are plugged in properly.
3. (Rare) The sensor might have become defective in mid-flush. There is no viable field test for this phenomenon.
4. Cluster valve might have become defective, or particulates are wedged under the piston seat. Remove the cluster from the valve to check for dirt under the piston seat, If no dirt is found, replace the cluster.

LIMITED WARRANTY

Mac Faucets warrant this Product to be free of defects for a period of one year from the date of purchase. Mac Faucets will replace, free of charge, during this warranty period, parts that prove defective when properly installed and under normal use and service. Damage that occurs as a result of abuse, improper installation, environmental conditions, or improper application will void this warranty. Products must be shipped with postage and handling prepaid, along with dated proof of purchase. This warranty does not cover installation or any other labor charges. it does not cover shipping and handling of both replacement parts and returned defective parts. Products or components that have been altered or in any way modified will not be covered under this warranty. Replacement parts are under warranty only for the remaining period under the initial warranty. Some states do not allow for the exclusion of incidental or consequential damage.

AUV-2 and ATV-2 Breakdown Drawings

Hardware style might differ from drawings

Caution

Read this note before proceeding

1.  Avoid using large amounts of pipe putty on pipe joints. Putty is damaging to all automatic flush valves.
2. After installing the stop valve and prior to installing flush valve, purge stop valve at high pressure for one minute, (purge into a bucket if available). Purging the valve in this way removes particles that might otherwise find their way into the flush valve causing immediate damage

MAC FAUCETS

• 15962 Downey Ave.
• Paramount, CA 90723
• 310-562-808-2240
• Tel 866-558-3200
• Fax 310.919.3073
•   www.macfaucets.com

References

• Hands Free Automatic Faucets | Mac Faucets

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