Muller Hydro-guard 200 series Instruction Manual

TABLE OF CONTENTS PAGE

OPERATING INSTRUCTIONS MANUAL

WARNING:

1. Each person involved in the assembly, installation and/or maintenance of the

Hydro-Guard Automatic Flushing Device must read this manual carefully and follow

all instructions prior to performing any installation or maintenance procedures

involving the Unit.

2. Verify the drainage path prior to installation to ensure that pedestrian and

vehicular hazards will not be created by the installation and use of the Hydro-

Guard Automatic Flushing Device (In areas in which freezing may occur, special

attention should be given to this procedure).

3. Never assemble, disassemble, or perform Hydro-Guard maintenance unless the

inuent supply valve has been closed, veried and secured, and internal piping

pressure has been relieved.

4. Always use all necessary safety equipment and follow all recommended

procedures when installing, operating and maintaining the Hydro-Guard Automatic

Flushing Device.

5. Replace worn or defective parts with OEM parts and check your battery twice a

year.

6. Operate the Hydro-Guard Automatic Flushing Device only when fully installed and

correctly assembled.

7. It is recommended that a pressure reducing valve be installed in front of the

Hydro-Guard where pressure could exceed 120 psi.

CAUTION:

The recommended optimal operating pressure for a Hydro-Guard®Automatic Flushing

System is between 20 psi and 120 psi. In the event pressure may exceed 120 psi

it is recommended that a Pressure Regulating Valve be installed ahead of the

Hydro-Guard ushing system.

200 Series

Warm Climate

High-Prole

Direct Discharge

Unit

Installation Instructions 2

Programming Unit 3 - 5

Options and Upgrades 6

Disassembly/Reassembly of Unit 7

Troubleshooting 8

Parts 10

Notes 11

F 12772 7/21

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

Installation Instructions

GENERAL

INSTALLATION

outstanding dependability and

performance.

Please read and retain this

manual. It will be helpful for future

reference, training, troubleshooting,

and maintenance.

Site Evaluation

Each Hydro-Guard®Unit installation

is unique and will require a

minimum of advance planning. Prior

Overview

The Hydro-Guard®200 Series

Warm Climate High Profile Direct

Discharge Unit, the industry's

premium patented, programmable

flushing apparatus, is suitable

for year-round use in warm

and moderate climates. This

Automatic Flushing System has

been designed, engineered,

and manufactured to provide

Hydro-Guard® 200 Series Warm

Climate High-Profile Direct

Discharge Air Gap Unit

1. Remove the Hydro-Guard®Unit

from Its packaging and inspect for

possible damage during shipping.

2. Excavate a suitably-sized ditch

ensuring it is connected on one

side to the utility's service line

trench. Remove any debris that

might create uneven pressure

on the Unit. Compact the bottom

of the hole in order to minimize

settling after installation. Place #57

stone, then noncompacted clean

bedding material within the bottom

of the hole.

3. Slowly lower the Hydro-Guard®

Unit into place, pressing it firmly

into the noncompacted bedding

material until it is fully seated.

4. Connect the utility's water

system to the Hydro-Guard®Unit

by means of the 2" threaded

connection. Ensure that Unit

is level before beginning the

backfilling operation.

to the installation of the device, the

drainage patterns for the intended

installation location should be

reviewed. The drainage pattern must

permit discharged water to flow

away from the Hydro-Guard®Unit in

the case of a backflow situation. In

cold-weather applications multiple

nightly flushes are effective in

managing discharge volumes and

preventing the accumulation of ice.

5. Backfill the hole around, under,

and inside of the Unit with clean

fill and/or #57 stone. Backfilling

should be accomplished in 6"

compacted lifts. Check that the

Unit Is level.

6. Disinfect the Hydro-Guard®

Flushing Device in accordance

with the utility's policy. DO NOT

exceed the dosage and contact

times recommended by the AWWA.

2" Adjustable Flow Valve

UV Protected/Impact Resistant Channel

Enclosure 17" x 24" x 34"

9 Volt Latching Solenoid

2" x 1¼" Reducer With Diffuser

4" Air Gap

6" Receiver Pipe (By Others)

Dechlorination System

BlueTooth or NODE Controller

Integrated Program

Mueller Curb

Box (Optional)

Mueller 2"Curb

Stop (Optional)

Quick Disconnect

Supply Line (By Others)

Quick Connect (HG-S116B Portable

Sample Valve Optional)

SCH-80 PVC Internal Piping

(Brass Optional)

NOTE: The

BL-KR V1.0

and BL-KR

V2.0 have

identical

hardware

and

software

configurations. The only distinction

is the outside plastic housing.

6. The App will now search for

devices in range.

7. Choose the Controller. The serial

numbers that populate the device

list can be found on the label

located on the back of the controller

housing with

the designation

“Default name.”

The App will

indicate that

it is in the

process of

connecting.

8. Once the

device is connected, it will appear on

the home screen when you launch

the Application.

NOTE: You

can associate

up to 400

devices with

the K-Rain

BL-KR App.

The number

of devices

is limited to

the internal

memory on

the Smartphone/Tablet.

the manufacturer with the plunger

already magnetically latched open,

some zones will default to OPEN.

Follow the start-up procedure

for systems with DC Latching

Solenoids. (Page 09)

CAUTION: For every change

to the program in the Mobile App,

you must exit back to the home

screen and tap the blue TRANSMIT

button (bottom right corner). The

Application aggregates changes

and transmits them to the

controller when you have finished

programming.

CAUTION: Programs A, B,

and C are independent programs,

including start times, run times,

watering days, and water budget.

1. Install the App: – From the App

Store or Google Play Install

the free K-RainBL App:

2. Install a 9 Volt Battery in the

Controller: – Unscrew the cap,

remove the seal and fasten the

battery to the correct terminals.

Replace the seal and cap and hand-

tighten the cap to ensure it seals.

NOTE: Before you launch the App,

you will need to enable locations

services on your phone/tablet in

order for the App to geolocate

your device during installation. On

Android, location services must

be enabled in order for the App to

connect to the BL-KR device.

3. Launch the application on

your Smartphone or Tablet.

4. Associate the controller with

your phone by tapping the Add a

Controller button.

5. The app will now ask what type

of Bluetooth device you would like

to add:

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

Programming Unit

PROGRAMMING HYDRO-GUARD® UNIT FOR OPERATION

Discharged water flushed from the

Hydro-Guard®Unit must be routed

away from the device. For Air Gap

models it is recommended that

a 6" catch pipe (by others) be

installed inside of the 200 Series

Warm Climate's external cabinet.

The catch pipe shall be mounted at

least 3" under the discharge piping

of the 200 Series Warm Climate

(see Typical Installation illustration

on page 2). The 6" pipe shall be

installed a minimum of 24" below

grade before a 90-degree bend or

pipe size reduction. If desired, the 6"

pipe can be reduced to a 3" or 4"

pipe to continue the routing of the

flow to a final discharge point. The

recommended final discharge points

may include a storm drain, drainage

or retention pond, or a storm swale.

Technical Data

• Operating temperature range of

32° to 120° F

• Operating Pressure: 7 to 200 psi

NOTE: Where sustained pressures

may exceed 120 psi the installation

of a pressure reducing valve (PRV)

is recommended.

Battery Life

Will vary based on number of

cycles per year, operating pressure,

and temperature. We recommend

checking the battery every 6 months,

but in many cases, you will get mor

life out of them.

200 Series Warm Climate

(Requires Controller)

The BL-KR battery powered

irrigation module communicates

with the K-Rain BL Application on

a Smartphone or Tablet by using

Bluetooth SMART 4.0, (low energy)

on an iPhone with iOS version 7

minimum or an Android phone/

tablet with Marshmallow version

6.0 or higher.

Important

CAUTION: For use only with

9V DC Latching Solenoids. As

some solenoids will come from

To add

another

controller, tap

the plus sign

in the upper

right hand

corner of the

home screen.

Application Home Screen:

Device Home Screen:

Programming Unit

Programming

The NODE has the capability to

hold 3 programs (A, B, C) and 4

start times per program. When

programming, flashing portion of

display can be changed by pressing

+or -keys. To change something

not flashing, press LEFT or RIGHT

ARROWS until desired item is

flashing.

Setting Date/Time

1. Press RETURN/ENTER key until

CLOCK icon is displayed.

2. All 4 digits will be displayed

representing the year. Use +or -

keys to change year. Press RIGHT

ARROW key to proceed to setting

month.

3. All 4 digits will be displayed

with two digits on left flashing

representing the MONTH. Use +

or -key to change month. Press

RIGHT ARROW key to proceed lo

setting DAY.

4. Only two digits on right will

be flashing, representing the

DAY. Press +or -key to change

day. Press RIGHT ARROW key to

proceed to changing TIME.

5. The AM/PM/24 time setting

is shown flashing. Press +or -key

to change to AM, PM, or 24:hour

time. Press RIGHT ARROW key to

proceed to setting the HOUR.

6. All 4 numbers are shown with

two numbers on the left flashing,

representing the HOUR. Press +

or -key to change the hour. Press

RIGHT ARROW key to proceed to

setting MINUTES.

7. All 4 numbers are shown with

two numbers on right flashing,

representing MINUTES. Press +

or -key to change minutes.

(Pressing RIGHT ARROW key will

return to YEAR setting at step #2.)

8. Press RETURN/ENTER key

to proceed to next programming

function, or allow controller to return

to idle mode.

200 Series Warm Climate Built-In:

(Integrated)

NODE Programming Instructions

Batteries

The NODE uses standard 9-volt

alkaline batteries to operate the

control valve and program the

controller. The controller can

operate with one or two batteries

installed. Under normal conditions,

potential life is 1 year for a single

battery.

Battery Installation

1. Unscrew rear body of the

NODE to gain access to battery

compartment.

2. Insert battery/batteries into

battery tray and connect the battery

connector to controller.

3. Make sure no water is inside

battery compartment.

4. Screw the NODE rear body back

onto front half.

NOTE: Make sure that seal marker

on rear half of the NODE lines

up with front half, ensuring a proper

seal is created. Also, The NODE has

non-volatile memory, which allows

battery replacement without losing

program information.

Idle Mode - Waking Up

Normally the NODE display shows

time and day, day of week, and

battery life Indicator. During a short

period of inactivity the display will

shut off to retain battery power

Pressing any key will wake up the

NODE to the Idle Mode.

Run Mode

When controller is operating a

program, items shown on display

will include station number (always

"1"), program letter (A, B, or C),

remaining runtime, and a blinking

Rotor icon.

Setting Flush Sequence Start

Times

1. Press RETURN/ENTER key until

CLOCK icon is displayed.

2. The START TIME will be

displayed flashing, along with the

program letter (A, B, or C) and start

time number (1, 2, 3, or 4) in the

upper left of the display. Up to 4

different start times can be set for

each program.

3. Use +or -key to change START

TIME for program displayed. Each

press of key will change start time

in 15-minute increments.

4. Press RIGHT ARROW key to

add an additional START TIME to

program displayed. The start time

number Is shown in upper left

corner of display.

5. Press PRG key to add START

TIME to a different program.

6. Press RETURN/ENTER key

to proceed to next programming

function, or allow controller to

return to Idle mode.

Setting Flush Duration Times

1. Press RETURN/ENTER key until

HOURGLASS icon is displayed. RUN

TIME will be displayed flashing.

Also shown is program letter (A, B,

or C) and active station# (always

#1- all other stations not used) on

lower left side of display.

2. Press +or -key to change

station RUN TIME from 1 minute

to 6 hours.

3. Press PRG key to add a RUN

TIME to another program.

4. Press RETURN/ENTER key

to proceed to next programming

function, or allow controller to

return to Idle mode.

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

NOTE:

- Pressing + or - key when running

in MANUAL FLUSH mode will modify

FLUSH TIME for that station.

- Pressing the button when a

station is running in manual

watering will stop flush on the

current station and advance to the

next station.

- Pressing the button when a

station is running In manual

watering will stop the flush on the

current station and revert to the

previous station.

Turn System Off

To turn off controller, press

RETURN/ENTER key button

until icon resembling water

spray and OFF is displayed on

screen. To return controller to

auto programming mode, press

RETURN/ENTER key. The controller

will immediately return to auto

programming mode and will display

time and battery life indicator.

NODE Quick Check

This circuit diagnostic procedure

can quickly identify "shorts"

commonly caused by faulty

solenoids or when bare common

wire touches a bare station control

wire. To initiate NODE Quick Check

procedure:

1. From Idle Mode, press and hold

+, -, LEFT ARROW, and RIGHT

ARROW keys.

2. Display will show all segments.

Release keys.

3. Press + key to initiate NODE

Quick Check test.

4. Controller will then activate

flushing unit for 1 second to verify

operation.

Battery Life Indicator

Remaining battery life can be

estimated from the battery life

indicator shown on display. The

NODE can operate using either a

Setting Flushing Days

1. Press RETURN/ENTER key until

CALENDAR icon is displayed. The

program letter (A, B, or C) will be

displayed. Arrows point at specific

days of week in which flushing will

occur.

2. Press LEFT or RIGHT ARROW to

scroll though days.

3. Press +key to activate that day

for program displayed, or -key to

cancel watering for that day. The

arrow will show on flushing days for

active program.

4. Press PRG key to set days to

flush for a different program, if

desired.

5. Press RETURN/ENTER key

to proceed to next programming

function, or allow controller to

return to Idle mode.

Manual Flushing

Manual flushing allows user to test

the Hydro-Guard®unit or a program

for a specified run time.

Make sure controller is in Idle

Mode.

1. Press and hold RIGHT ARROW

until HAND icon is displayed. The

station number (always #1) will

be displayed in lower left side of

display along with RUN TIME.

2. Use the LEFT or RIGHT ARROW

to select #1 station if not already

displayed, and +or -key to set

manual flushing time.

3. To manually activate a program,

press PRG key. Program letter (A,

B, or C) will show on screen. If a

different program is needed, press

PRG key until desired program is

displayed.

4. To stop MANUAL FLUSHING

cycle press - key until time is

reduced to zero.

5. Press RETURN/ENTER key

to proceed to next programming

function, or allow controller to return

to idle mode.

single 9-volt battery or using two

9-volt batteries. Using two 9-volt

batteries will yield approximately

twice the battery life of a single

9-volt battery. The battery life

indicator chart below shows an

estimate of remaining battery life.

Full: 100-60% remaining battery life

Med: 60-25% remaining battery life

Low: 25-0% remaining battery life

Replace battery immediately!

Resetting Controller

Resetting controller will erase

current program data and restart

controller. A reset does not,

however, delete a program saved to

permanent memory using the Easy

Retrieve Memory feature to save a

preferred program.

1. From Idle Mode, press and hold -,

RIGHT ARROW, and PRG keys.

2. After two seconds screen will go

blank. Continue to hold keys.

3. 12:00 will flash on display.

Release keys.

4. The controller may show a

countdown from 10 to 1 on

display, and then 12:00 am will

be shown flashing when reset is

complete. The controller can now

be reprogrammed.

Programming Unit

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

Freeze Protection

The Hydro-Guard®Direct Discharge

Unit (200 Series Warm Climate)

can be upgraded to include freeze

protection via a thermal control

valve to help prevent the unit from

freezing at colder temperatures.

Dechlorination (included)

All Hydro-Guard®Units are

equipped with a dechlorination

system. Dechlorination takes place

as a portion of the discharged

water passes through a housing

containing either sodium sulfite

or ascorbic acid tablets. This

action creates a concentrated

dechlorination solution that

then mixes with the non-directly

treated portion of the discharge to

effectively dechlorinate the entire

discharge volume. This option is

available for the 200 Series Warm

Climate Direct Discharge Unit.

The following is a brief overview

and introduction to Hydro-Guard®

Options.

Sample Station (Included)

A standard feature on the 200

Series Warm Climate High Profile

Direct Discharge Unit is the sample

port, which allows Hydro-Guard's

Portable Sample Valve (Part# HG-S

1167) to attach to the sample port

to obtain a sample. Slip off the

sanitary blue cap, attach the quick-

connect adaptor, open the valve and

collect your sample. You may wish

to run a brief manual mode flush

prior to the collection in order to

ensure water indicative of the main-

line water quality is being sampled.

Generally a two-minute flush is

sufficient. Track your residual levels

and alter flushing frequency and/or

duration in order to maximize water

conservation.

HYDRO-GUARD® FEATURES, OPTIONS AND UPGRADES

Options and Upgrades

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

200 SERIES WARM CLIMATE DISASSEMBLY AND REASSEMBLY INSTRUCTIONS

4. Run manual flush for 2 minutes.

NOTE: Plunger inside solenoid

should be down when running and

up when off.

5. If everything checks out, reinstall

solenoid in valve.

6. Avoid cross threading. Any

resistance means solenoid is

not going in correctly and cross

threading may occur. Do not

overtighten. Tighten until snug.

If everything checks out, the

electrical system is in working order.

Disassembly and Check

For units manufactured from August

2004 to present, use the following

directions. If you have an older

model with a different valve and

lost the manual, please call us at

(800) 423-1323 option #9 to get

the manual for that model.

1. Remove six (6) bolts from top

cover.

2. Slowly pull cover off the valve.

3. Remove rubber diaphragm and

inspect for holes or worn areas.

4. Inspect valve screen plug to be

certain it is not damaged and clear

of debris.

5. Remove valve screen plug and

inspect valve screen for debris.

Clean with water if necessary.

6. Replace the top cover back onto

the diaphragm - make sure to line

up the openings In both.

7. Match up the top cover of the

valve with the bottom portion.

The arrows have to align on both

portions.

8. Replace the bolts and tighten

down.

Although the Hydro-Guard®200

Series Warm Climate Direct

Discharge with Air Gap was

delivered completely assembled, it

may be necessary and/or desirable

to disassemble portions of the

Unit, or the Unit in its entirety, In

order to allow for required service

and maintenance. If disassembly

is necessary, please follow the

directions below. Always close the

curb stop before working on the unit.

200 Series Warm Climate Removal

of Internal Components (FOR AIR

GAP MODEL)

1. Shut off water supply and secure

isolation valve.

2. Remove the housing cover by

tilting the housing upward while

lifting slightly on its end. Once

the retaining pin, located in the

opposite end of the housing, is

clear of the cover, lift upward to

remove the cover.

3. Use the sample port connection

to bleed residual pressure within

the line.

4. If you have dechlorination,

remove from piping by loosening

the nut and disconnect, 'Skip to #5,

if no dechlorination.

5. Loosen the union and remove

piping and control valve.

Electrical System Check

1. Unscrew Solenoid from control

valve.

2. Make sure controller is attached

to solenoid via connectors (remove

adaptor if present).

3. Position thumb or other object in

front of plunger, leaving a slight gap

(⅛"), to prevent plunger and spring

from ejecting away from work space.

Reassembly (FOR AIR GAP

MODEL)

1. Before reinstalling the working

components, check all union

surfaces for wear or damage.

Reinstall the working components

and tighten the union.

2. If you have dechlorination,

reattach to piping by tightening

the nut.

*Skip to 3 if no dechlorination.

3. Turn the water supply to the unit

back on and check for leaks.

4. Run a 2-minute manual flush.

Replace the batteries in the

controller if needed. Now program

the flushing schedule.

Disassembly/Reassembly of Unit

TOOLS NEEDED: HG-A2023 Security Tool, Philips screwdriver, at-head screwdriver

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

TROUBLESHOOTING THE PROGRAMMER

Troubleshooting

TROUBLESHOOTING THE UNIT

control knob Is open on the

valve OR Check the pipes for

obstructions OR Check the

valve.

• Check the water pressure at

the unit. The pressure must be

in the operating range of the

solenoid and programmer (150

psi maximum). If too high a

PRV might need to be installed.

The Hydro-Guard Unit will not shut

off:

Possible Causes

• The solenoid is stuck In the

open position.

• Batteries weak or dead.

• Connection loss from controller

to solenoid.

• The solenoid is loose or there

is debris in the adapter.

• There is a hole in or debris

around the diaphragm.

If your Hydro-Guard Unit does not

activate:

Possible Causes

• Water pressure off or low.

• Batteries weak or dead.

• Connection loss from controller

to solenoid.

• Solenoid not working properly.

• Obstruction In flow of water.

• The water pressure is too high

and the solenoid will not open.

Try this Correction

• Check if curb stop is open.

• Change batteries.

• Check connections for

corrosion, breaks, or lack

of connection.

• Run an electrical systems

check.

• Check to make sure the flow

• The water pressure Is too high

and the solenoid will not close.

Try this Correction

• Run a manual flush for 1

minute.

• Change batteries.

• Check connections for

corrosion, breaks, or lack of

connection.

• Check the adapters and

solenoid for debris. Run the

electrical systems check.

• Refer to valve troubleshooting

for possible corrective

measures.

• Check the water pressure at

the unit. The pressure must be

in the operating range of the

solenoid and programmer (150

psi maximum). If too high a PRV

might need to be installed.

PROBLEM CAUSE SOLUTION

Controller does not flush

as desired

Water at main water supply is

shut off

Battery dead Replace battery

Controller improperly programmed Check program and clock settings

Controller set to OFF Set controller to desired program

Blank display

Water does not turn off Overlapping programming Review all programming and edit

any program that is in conflict with

desired off schedule

Clear all programming in memory

and reset

Programmer not communicating Check Programming

Run Manual On/Off with solenoid

removed from valve (hold finger

or object over solenoid plunger to

prevent plunger from dislodging

from solenoid body)

Check wiring for damage and

connectors to ensure proper

connection (red to red & black

to black)

Check main supply valve

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

2" Adjustable Flow Valve

UV Protected/Impact Resistant Channel

Enclosure 17" x 24" x 34"

9 Volt Latching Solenoid

2" x 1¼" Reducer With Diffuser

4" Air Gap

6" Receiver Pipe (By Others)

Dechlorination System

BlueTooth or NODE Controller

Integrated Program

Mueller Curb

Box (Optional)

Mueller 2"Curb

Stop (Optional)

Quick Disconnect

Supply Line (By Others)

Quick Connect (HG-S116B Portable

Sample Valve Optional)

SCH-80 PVC Internal Piping

(Brass Optional)

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

Airgap Backflow Prevention

(Customer to Supply Airgap Drain

Flushing

Dechlor

Solenoid

Control Valve

Bury

Depth

NODE

Controller

Quick

Connect

Sample

Port

Quick

Connect

Pipe

Release

Light

Green

Enclosure

ID PART NUMBER DESCRIPTION

1 HG-15100-LG Enclosure

2 HG-DECHLORHG2-HP Dechlorination Chamber

3 HG-123100 2” Composite Control Valve

4 546589 NODE Controller Assembly (Programming Option)

5 HG-S302 BlueTooth Controller (Programming Option)

6 546767 200 Series Warm High Profile Replacement Piping Assembly

7 HG-15113 P-Key (Enclosure Security)

8 HG-S294 HG2 TCV Assembly

Parts

REPLACEMENT PARTS

Notes

200 SERIES WARM CLIMATE HIGH-PROFILE DIRECT DISCHARGE UNIT

1.800.423.1323 – www.muellerwp.com – [email protected]

INTERNATIONAL – 1.423.490.9555 – www.mueller-international.com – international@muellercompany.com

Mueller refers to one or more of Mueller Water Products, Inc. a Delaware corporation (“MWP”), and its subsidiaries. MWP and each of its

subsidiaries are legally separate and independent entities when providing products and services. MWP does not provide products or services to

third parties. MWP and each of its subsidiaries are liable only for their own acts and omissions and not those of each other. MWP brands include Mueller®, Echologics®, Hydro Gate®,

Hydro-Guard®, HYMAX®, Jones®, Krausz®, Mi.Net®, Milliken®, Pratt®, Pratt Industrial®, Singer®, and U.S. Pipe Valve & Hydrant. Please see muellerwp.com/brands and krauszusa.com to learn more.

of Mueller Water Products, Inc., its afliates or other third parties. Products marked with a section symbol (§) are subject to patents or patent

applications. For details, visit www.mwppat.com. These products are intended for use in potable water applications. Please contact your

Mueller Sales or Customer Service Representative concerning any other application(s).

LIMITED WARRANTY

Thls Hydro-Guard"" Automatic Flushing Device Is warranted for one year from the date of delivery. Mueller Co. will repair or replace any defective part or component as long as the Unit is

installed and operated In accordance with the procedures descrlbed within this manual. Damage or fallure caused by the Improper installation, assembly, disassembly, maintenance or operation

of the Hydro-Guard Automatic Flushing Device Is not covered by the terms of this warranty. Call Mueller Co. at 877.864.8500 during regular business hours, or contact HydrowGuard at www.

HydroMGuard,com for detalls on warranty service.

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