YOLINK YS5003-UC Smart Water Valve Controller User Guide

: June 14, 2024
: YOLINK

YS5003-UC Smart Water Valve Controller
User Guide

YS5003-UC Smart Water Valve Controller

Valve Controller 2
YS5003(S)-UC KITS:
YS5003(S)-UC & BULLDOG
YS5003(S)-UC & DN Welcome!
Thank you for purchasing YoLink products! We appreciate you trusting YoLink for your smart home & automation needs. Your 100% satisfaction is our goal. If you experience any problems with your installation, with our products or if you have any questions that this manual does not answer, please contact us right away. See the Contact Us section for more info. Thank you!
Eric Vanzo
Customer Experience Manager
User Guide Conventions
The following icons are used in this guide to convey speciﬁc types of information:
Very important information (can save you time!)
Good to know info but may not apply to you

Before You Begin

Visit our Valve Controller 2 support page on our website, for the latest installation guides, additional resources, information and videos by visiting: www.shop.yosmart.com/pages/valvecontroller-2-product- support Or by scanning the QR code:

www.shop.yosmart.com/pages/valve-controller-2-product- support

Download the most current version of the user guide by scanning the QR code:

https://www.yosmart.com/support/YS5003-UC/docs/instruction

Your Valve Controller 2 wirelessly connects to the internet via a YoLink Hub or Speaker Hub, and it does not directly connect to your WiFi or local network. In order for remote access to the device .from the app, and for full- functionality, a YoLink hub is required. This guide assumes the YoLink app has been installed on your phone, and a YoLink Hub or Speaker Hub is installed and online.

What’s Included

YS5003(S) Items: Bulldog Valve Robot Kit Items: Motorized Valve Kit Items:

Required Items

These tools or items may be required: These items will be required to install the Bulldog Valve Robot: These items may be required to install the motorized valve:

Get to Know Your Valve Controller 2

LED Behaviors

| Blinking Red Once, Then Green Once Device Start-Up
---|---
| Blinking Red And Green Alternately Restoring to Factory Defaults
| Blinking Red Once Valve Closing
| Quick Blinking Red Twice Valve is Closed (YS5003S, Only)
| Blinking Green Once Valve Opening
| Quick Blinking Green Twice Valve is Open (YS5003S, Only)
| Slow Blinking Green Twice Connecting to Hub
| Quick Blinking Green Control-D2D Pairing in Progress
| Quick Blinking Red Control-D2D Unpairing in Progress
| Slow Blinking Green Updating
| Fast Blinking Red Every 30 Seconds Low Battery, Replace Batteries Soon
| Green LED on Steady 12VDC Power Input Connected

Power Up

Power up the Valve Controller 2 by briefly pressing the SET button, until the LED flashes (red, then green).

Install the App

If you are new to YoLink, please install the app on your phone or tablet, if you have not already.
Otherwise, please proceed to the next section. Scan the appropriate QR code below or ﬁnd the “YoLink app” on the appropriate app store.

http://apple.co/2Ltturu
Apple phone/tablet iOS 9.0 or higher http://bit.ly/3bk29mv

Open the app and tap Sign up for an account. You will be required to provide a username and a password. Follow the instructions, to set up a new account. Allow notiﬁcations, when prompted.
You will immediately receive a welcome email from no- [email protected] with some helpful information. Please mark the yosmart.com domain as safe, to ensure you receive important messages in the future.
Log in to the app using your new username and password.
The app opens to the Favorite screen. This is where your favorite devices and scenes will be shown. You can organize your devices by room, in the Rooms screen, later.

Add Your Valve Controller 2 to the App

Tap Add Device (if shown) or tap the scanner icon:
Approve access to your phone’s camera, if requested. A viewﬁnder will be shown on the app.
Hold the phone over the QR code so that the code appears in the viewﬁnder. If successful, the Add Device screen will be displayed.
You can change the device name and assign it to a room later. Tap Bind device.
If successful, the screen will appear as shown. Tap Done.

Install the Valve Controller 2

Preparing for installation:
Determine where you will mount the valve controller. The Valve Controller 2 was designed to be wall-mounted, at an indoor or outdoor location.
If installing your Valve Controller 2 and/or valve device at an outdoor location, please ﬁrst refer to the environmental range speciﬁcations, found on the Valve Controller 2 product support page of our website. Also, while the Valve Controller 2, the Bulldog Valve Controller and our motorized valves are rated for outdoor use, to ensure years of dependable operation, provide protection from rain and direct sunlight with overhead cover, in the form of an enclosure or rain hood. Do not install your valve controller or valve device at a location where it will be submerged in water.
Use of the 12VDC power supply/adapter is optional. If you do not use the power supply/adapter (or provide your own 12VDC power supply), the valve controller must have batteries installed. If you do connect a 12VDC power supply to your valve controller, the use of batteries is optional.
With the use of optional extension cables, the valve controller can be installed remotely from the Bulldog or motorized valve. In some cases this may allow placing the controller at a more convenient or more accessible location (for battery replacement, etc.). The location of the valve controller must be within the limits of the cables. If in doubt, connect all applicable cables between the controller and the valve device and the AC power outlet (if applicable) and choose an appropriate location for the controller. (Extension cables can be purchased on our website.)
Determine how you will mount the valve controller to the wall, and ensure you have the appropriate mounting hardware (screws, anchors, etc.) for the wall surface.
Install the Valve Controller 2:

Holding the valve controller at the desired location, and using a marker or pencil, transfer the valve controller’s top mounting hole location to the wall surface.
If using wall anchors, install one at the top mounting hole location, per the manufacturer’s instructions (drill a pilot hole ﬁrst, etc.)
Insert a screw in the top mounting hole location, but do not screw it flush with the wall; leave space on the end of the screw for the valve controller.
Hang the valve controller on this screw, and it should be level on the wall. Optionally, you can verify the valve controller is level with a level tool at this time. Using a marker or pencil, transfer the valve controller’s two bottom mounting holes to the wall surface.
If using wall anchors, install them at this time.
Insert screws in each of the two bottom mounting hole locations.
Tighten all three screws, and conﬁrm the valve controller is secured to the wall surface.

To install a motorized valve, go to page 28. To install a Bulldog Valve Robot, proceed to the next page.
Get to Know Your Bulldog Valve Robot Please note: the existing ball valve must be in good working order. It must open and close smoothly, with minimal effort, and it must close fully, shutting off the water completely. The Bulldog Valve Robot is not able to correct mechanical issues of the ball valve.
Install the Bulldog Valve Robot

Select the appropriate bracket for your application. The appropriate bracket ﬁts over the ball valve (where it is connected to the pipe) and can subsequently be tightened securely to the ball valve. If the bracket does not ﬁt over the ball valve, or seems to be too loose, try the other bracket.
Loosen the two screws on the bracket, to allow for separating it into two pieces, as shown.
Place the upper bracket and lower bracket on the valve, as shown, and loosely tighten the screws. Important! The bracket must be mounted to the ball valve, not to the pipe. The ball valve should have at least one side shaped like a nut or bolt head. The brackets will not tighten to pipe or to a round portion of the ball valve.
Position the bracket so that it is aligned with the pivot point of the ball valve, by visualizing a line between the tab slot and the pivot point, as shown.
Remove the screw from the tab slot, then attach the Valve Robot to the bracket.
Keeping the center axis of the Valve Robot’s motor shaft aligned with the ball valve shaft, as indicated by the red dashed line, reinsert and tighten the tab slot screw. If it is not possible to align the parts as shown, or if the bracket can not be secured to the ball valve, consider rotating the ball valve handle 180°. After removing the Bulldog, this can be done by removing the ball valve handle, and then reinstalling it on the other side. Reinstall the Bulldog (on the other side of the ball valve) and check if alignment is better in this position.
Securely tighten the two screws on the bracket. Gently tug on the Bulldog, and tighten the screws until the Bulldog is ﬁrmly held in place by the bracket and tab screw.
Remove the nuts and collars from the two handle supporting bolts, as shown.
Place the bolts in the slot on the rocker arm, with one on each side of the valve handle, as shown.
Put the collars back on the bolts. Holding them in place with one hand, insert the bottom supporting bracket over the end of each bolt, as shown. Insert and loosely tighten a nut on each bolt. Now, position each bolt/collar so that it is snug against the valve lever handle, with one on each side of the handle. Using a Phillips screwdriver, tighten the screw on each bolt/collar assembly, holding the nut in place, as needed. Conﬁrm that each collar is snug against the handle.

Final Connections

Connect the valve controller’s valve control cable (2-pin) to the control cable of the Bulldog Valve Robot. Ensure the arrow of the cable connector aligns with the arrow of the other cable connector. Twist the collar of the connector tight.
YS5003S, only: Connect the valve controller’s valve status cable (3-pin) to the valve status cable of the Bulldog Valve Robot. Ensure the arrow of the cable connector aligns with the arrow of the other cable connector. Twist the collar of the connector tight.
If using the 12VDC power input, via the included plug-in power adapter or via your own 12VDC power supply, prior to plugging-in the power supply/adapter or energizing the power supply circuit, connect the valve controller’s 12VDC input cable to the power adapter or 12VDC power supply cable. Plug in the power supply/adapter or energize the 12VDC power supply circuit at this time. If you are electing to power the valve controller only from the 12VDC power input (not recommended), you can remove the batteries at this time.

Use care to not connect a 2-pin connector to a 3-pin connector or vice versa. Never force two connectors together – the connectors should mate-up easily and not require force to tighten.

Manual Operation

It is recommended to always use the app or the valve controller SET button to operate the Bulldog Valve Robot. If you need to manually operate the Bulldog without using the app, you can press the SET button on the valve controller. If you need to operate the Bulldog Valve Robot without using the valve controller, you can do so by depressing the clutch pin as shown below. While depressing this pin, the motor and gears are disengaged from the ball valve, allowing it to be manually operated.
If you are not using the valve status feature or if your valve controller does not have the valve status feature, to avoid the app from indicating the wrong valve status, if you manually closed the valve, for example, manually open it again. Do not open it via the app, after manually closing it and vice versa, otherwise the app will incorrectly indicate the valve is closed. Do not attempt to move the ball valve without ﬁrst depressing the clutch pin, as damage to the Bulldog may occur.

Testing

Test the Valve Controller 2 and Bulldog Valve Robot by pressing the SET button on the controller, and by watching the closing or opening action of the Bulldog and the ball valve. The valve should open and close completely (verify no water is flowing through the valve while closed). Also, listen for an even sound of the motor operating. If the Bulldog sound increases or appears to be straining, this may indicate incorrect or suboptimal Bulldog installation and/or a mechanical issue with the ball valve (such as too stiff or too much resistance to turning). Return to the installation section, if needed.
Test the operation of the Valve Controller 2 from the app. From the Rooms or Favorite screen, locate your Valve Controller 2, tap the image, then tap Close to turn off the water, and tap Open to turn it on.

Proceed to the next page for troubleshooting steps, otherwise go to page 38, Control-D2D Device-to-Device Pairing

Troubleshooting

Problem:
The valve controller is offline
Possible Solutions:

Ensure the Valve Controller 2 is on. Repeat the Power Up section steps, if needed
Replace the batteries

Problem:
The valve controller does not respond to the SET button being pressed and/or the Bulldog Valve Robot is unresponsive
Possible Solutions:

Ensure the Valve Controller 2 is on. Repeat the Power Up section steps, if needed
Double check the cable connectors for correct and tight connections
Replace the batteries

Problem:
The Bulldog Valve Robot moves or slides off of the ball valve while in operation
Possible Solution:

Ensure the Bulldog’s bracket is mounted to the correct (non-round) part of the ball valve, and is tightly secured to the ball valve. Return to the installation section, if needed

Problem:
The Bulldog Valve Robot does not close the valve completely and/or appears to strain, shakes, or makes a loud and/or grinding noise while operating
Possible Solutions:

Ensure the Bulldog’s bracket is properly installed on the ball valve, and is tight
Ensure the axis of the ball valve is aligned as much as possible with the axis of the Bulldog output shaft

Problem:
The valve is indicated as closed in the app, but it is actually open (or vice versa)
Possible Solution:

Non-valve-status controllers only: disconnect the valve controller from the Bulldog. Manually operate the Bulldog, moving it to the open position if it was closed, and to the closed position if it was open. Reconnect the valve controller to the Bulldog. Test the Bulldog and valve controller from the app, and verify it is now5 correctly indicated as open or closed

Get to Know Your Motorized Valve

The valve included in this kit is a 12V DC non-smart motorized valve. Use only this valve or YoLink-approved valve control products, such as the Bulldog Valve Robot. Do not use with non-YoLink valve products.

Install the Motorized Valve

Preparing for installation:
Determine the installed location of your new motorized valve. Please consider these factors when choosing the location for the motorized valve:

This location must be within reach of the cables of the Valve Controller 2 (see Install the Valve Controller 2 section, on page 12.
Ensure that there is physical room for the valve, that other pipes, a wall or other objects will prevent installing it at the desired location.
The manual control knob and Open/Shut indicator window should be visible and accessible.
Please note, the valve can be installed in any orientation; sideways, inverted, etc.
Local plumbing or building codes may require a non-electronic means of water shut-off. If this is the case, or if in doubt on the requirements, install the motorized valve in line (before or after) the existing shut-off valve (ball valve, etc.)

Shut-off the water serving the pipe where the valve is to be installed. Drain the water from the pipe, by turning on a faucet, or by other method as required.
Depending on the adapter ﬁtting used, measure the length of pipe that must be cut, and mark the cut lines on the pipe, as shown below.
Cut the water pipe through the mark using a pipe cutting tool, then remove the cut section of pipe, as shown below.
Sand both ends of cut pipe, removing any burrs or rough edges. Use care handling the cut edges, which may be sharp! Wipe off the cut section of pipe with a clean cloth.
Install your adapter ﬁttings in the pipe ends, per the manufacturer instructions.
Wrap each adapter’s threaded end with thread seal tape, per the tape manufacturer’s instructions, as shown below.
Install the Motorized Valve on the adapter ﬁttings, ensuring a secure connection at each ﬁtting, as shown below.
At the water valve or point of disconnection, turn the water on again.
Verify there are no leaks and no visible water on the motorized valve.

Final Connections

Connect the valve controller’s valve control cable (2-pin) to the control cable of the motorized valve. Ensure the arrow of the cable connector aligns with the arrow of the other cable connector. Twist the collar of the connector tight.
YS5003S, only: Connect the valve controller’s valve status cable (3-pin) to the valve status cable of the motorized valve, if applicable. Ensure the arrow of the cable connector aligns with the arrow of the other cable connector. Twist the collar of the connector tight.
If using the 12VDC power input, via the included plug-in power adapter or via your own 12VDC power supply, prior to plugging-in the power supply/adapter or energizing the power supply circuit, connect the valve controller’s 12VDC input cable to the power adapter or 12VDC power supply cable. Plug in the power supply/adapter or energize the 12VDC power supply circuit at this time. If you are electing to power the valve controller only from the 12VDC power input (not recommended), you can remove the batteries at this time.

Manual Operation
It is recommended to always use the app or the valve controller’s SET button to operate your motorized valve.
Lift the knob on the top of the motorized valve and turn it by hand, until it can not be turned.
Check the valve position indicator.
If you are not using the valve status feature or if your valve controller does not have the valve status feature, to avoid the app from indicating the wrong valve status, if you manually closed the valve, for example, manually open it again. Do not open it via the app, after manually closing it and vice versa, otherwise the app will incorrectly indicate the valve is closed.
Testing

Test the Valve Controller 2 and motorized valve by pressing the SET button on the controller. Listen for a smooth even sound from the motorized valve. Once closed, ensure that no water is flowing through the valve (the water flowing through the valve may make an audible sound). Check that no water flows from an open faucet served by this valve.
Test the operation of the Valve Controller 2 from the app. From the Rooms or Favorite screen, locate your Valve Controller 2, tap the image, then tap Close to turn off the water, and tap Open to turn it on.

Problem:
The valve controller is offline
Possible Solutions:

Ensure the Valve Controller 2 is on. Repeat the Power Up section steps, if needed
Replace the batteries

Problem:
The valve controller does not respond to the SET button being pressed and/or the Motorized Valve Robot is unresponsive
Possible Solutions:

Ensure the Valve Controller 2 is on. Repeat the Power Up section steps, if needed
Double check the cable connectors for correct and tight connections
Replace the batteries

Problem:
The valve is indicated as closed in the app, but it is actually open (or vice versa)

Possible Solution:

Non-valve-status controllers only: disconnect the valve controller from the Motorized Valve. Manually operate the Motorized Valve, moving it to the open position if it was closed, and to the closed position if it was open. Reconnect the valve controller to the Motorized Valve. Test the Motorized Valve and valve controller from the app, and verify it is now correctly indicated as open or closed

Control-D2D Device-to-Device Pairing
YoLink Control-D2D is our unique device-to-device control technology. Using Control-D2D, compatible YoLink devices can control or be controlled by other YoLink devices, without a hub or internet connection. One device can control another device, directly.
A device that controls or sends out commands is called the controller. A device that is controlled or receives the commands is called the responder. An example of a controller are a
Water Leak Sensor, while examples of a responder are a Siren Alarm or a Valve Controller 2. Use of YoLink Control-D2D is optional.
One device can be Control-D2D-paired to up to 128 other devices.
Pairing is separate from the app and any automation, scenes or alarm strategies you may have conﬁgured in the app. Use care to not create automations that conflict with Control-D2D-pairing and vice-versa.
During pairing, the controlled device must be in the state (open, on, unlocked, etc.) that it should transfer to when signalled by the controller.
Pairing

To conﬁgure a Water Leak Sensor 1 as a controller, press and hold the leak sensor’s SET button for 5-10 seconds, until the LED quickly blinks green, then release the button.
To conﬁgure the Valve Controller 2 as a responder, ﬁrst ensure that the valve or Bulldog is in the closed position. Press and hold the controller’s SET button for 5-10 seconds until the LED quickly blinks green, then release the button.

Upon pairing, the LED will stop blinking. This may happen after only blinking two or three times.

Testing

Ensure the valve is in the normal (open) position.
Test the water leak sensor (if needed, refer to the sensor user guide for testing instructions).
Verify that the valve closes immediately when the leak sensor is activated.

Unpairing

At the Water Leak Sensor, press and hold the SET button for 10-15 seconds, until the LED quickly blinks green then red, then release the button.
At the Valve Controller 2, press and hold the SET button for 10-15 seconds, until the LED quickly blinks green then red, then release the button.

Upon unpairing, either the Water Leak Sensor LED or the Valve Controller 2 LED will stop blinking and turn off.
At this time, you can test the leak sensor to conﬁrm it no longer activates the valve controller. If you also have any automations or alarm strategies that may also control the valve controller, disable them before testing.
Using the App & 3rd-Party Services
Please visit our website’s Support page for the YoLink app guide and for product-speciﬁc app settings and instructions: www.yosmart.com/support-and- service

Factory Reset

Factory reset will erase device settings and restore it to factory default settings. Doing a factory reset will not remove the device from your account and it will not harm the device, or lose any data or require you to redo your automations, etc.
Instructions:
Hold the SET button down for 20-30 seconds, until the LED blinks red and green alternately.
Then, release the button. (Holding the button down longer than 30 seconds will abort the factory reset operation) Factory reset will be complete when the LED stops blinking.
Only deleting a device from the app will remove it from your account. Factory reset will not delete the device from the app.

Firmware Update

Your YoLink products are constantly being improved, with new features added. It is periodically necessary to make changes to your device’s ﬁrmware. For optimal performance of your system, and to give you access to all available features for your devices, these ﬁrmware updates should be installed when they become available.
In the Detail screen of each device, at the bottom, you will see the Firmware section, as shown in the image below. A ﬁrmware update is available for your device if it says “#### ready now”
Tap in this area to start the update.
The device will update automatically, indicating progress by percentage- complete. You may use your device during the update, as the update is performed “in the background”. The LED will slowly blink green during the update, and the
update may continue for several minutes beyond the LED turning off.

Battery Replacement

Using a Phillips screwdriver, loosen the four battery cover screws, and remove the battery compartment cover.
Remove all four batteries.
Observing the correct battery position and polarity, replace them with new AA batteries
Replace the battery compartment cover and tighten the screws.
In the app, verify the Valve Controller 2 is online and the batteries are indicated as good.

The Valve Controller 2 can be powered by alkaline or lithium-ion batteries. Do not use rechargeable or other type batteries.
Warnings

Please install, operate and maintain the Valve Controller 2 (and Motorized Valve or Bulldog Valve Robot) only as outlined in this manual. Improper installation or use may damage the unit and/or void the warranty.
Do not install or use the device outside of the temperature and humidity range listed in the environmental speciﬁcations.
If used outdoors, for the maximum life of the device, provide overhead cover or a protective enclosure. This can protect it from the damaging effects of intense direct sunlight and/or rain over a period of years.
Do not immerse or allow the devices to be immersed or submerged in water.
Avoid placing the devices in extremely dirty or dusty environments.
If the device does get dirty, please clean it by wiping it down with a clean dry cloth. Do not use strong chemicals or detergents, which may damage or discolor the exterior and/or damage the electronics, voiding the warranty.
Do not install the device where it may be subjected to vandalism, abuse, physical impacts or strong vibrations. Physical damage is not covered by the warranty.
Power the controller only with new AA alkaline or lithium-ion batteries. Do not use rechargeable batteries, do not use other type batteries (e.g. zinc blend). Do not mix old and new batteries.
If storing the controller for extended periods, remove the batteries.
Please contact Customer Support before attempting to repair, disassemble or modify the device, any of which can permanently damage the device and void the warranty.

Warranty

1 Year Limited Mechanical Device Warranty
2 Year Limited Electrical Device Warranty
YoSmart warrants to the original user of this product that it will be free from defects in materials and manufacturing workmanship, under normal use, for 1 year from the date of purchase for motorized valves and the Bulldog Valve Robot and for 2 years from the date of purchase for the Valve Controller 2.
The warranty does not cover abuse or misused products, nor does this warranty apply to products that have been improperly installed, were modiﬁed, or put to a use other than designed. This warranty does not cover products subjected to acts of God (such as floods, lightning strike or electrical surge, or earthquakes, etc.).
This warranty is limited to repair or replacement of the product only at YoSmart’s sole discretion. YoSmart will NOT be liable for any costs associated with removing or reinstalling the product. YoSmart will NOT be liable for direct or indirect or consequential damages to persons or property resulting from the use of this product.The warranty only covers the cost of replacement products or parts. It does not cover shipping and handling charges or fees. To implement this warranty, please refer to the Contact Us section of this guide.

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna, connect the equipment into an outlet on a circuit different from that to which the receiver is connected, increase the separation between the equipment and receiver, consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference
This device must accept any interference received, including interference that may cause undesired operation. Any changes or modiﬁcations not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

FCC Statement, Continued
PRODUCT NAME: Valve Controller 2
PART Y: YOSMART, INC.
TELEPHONE: 831-292-4831
MODEL NUMBER: YS-5003-UC
ADDRESS: 15375 BARRANCA PKWY SUITE J-107, IRVINE, CA 92618 USA
EMAIL: [email protected]

IC Caution

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:

This device may not cause interference, and
This device must accept any interference, including interference that may cause undesired operation of the device.

To maintain compliance with RSS-102 RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm distance between the radiator and your body: Use only the supplied antenna.
Contact Us
We are here for you, if you ever need any assistance installing, setting up or using a YoLink app or product!
Need help? For fastest service, please email us 24/7 at [email protected]
Or call us at 831-292-4831 (US phone support hours: Monday – Friday, 9AM to 5PM Paciﬁc) You can also ﬁnd additional support and ways to contact us at: www.yosmart.com/support-and- service Or scan the QR code:

Support Home Page
http://www.yosmart.com/support-and-service Finally, if you have any feedback or suggestions
for us, please email us at
[email protected]
Thank you for trusting YoLink!
Eric Vanzo
Customer Experience Manager
15375 Barranca Parkway Ste. J-107 | Irvine, California 92618
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