Water Worker WWPB10 User manual

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What You’ll Need
Before You Start
INSTALLATION MANUAL FOR WATER PRESSURE BOOSTER
Please read the following instructions carefully
Keep this manual with the tank for future reference.
Part #: 9077-0014 (01/19)
Recommended Tools
Adjustable Wrench
Adjustable Pliers
Pipe Wrench
Tubing Cutter
Screwdriver
Tape Measure
Tire Pressure Gauge
NPT Male Adapters: 1¼" & 1"
100 psi Relief Valve
Spring Loaded Check Valve
Drain Valve
Shutoff Valves
Wire Connections Line
Teflon® Tape
Additional Parts Required (Not Included)
USE ONLY WITH POTABLE WATER
SYSTEMS. Do not operate in a setting with
freezing temperatures or where the temperature can exceed
100°F and do not exceed the maximum working pressure
specified for this Product.
READ CAREFULLY THE PRODUCT
INSTALLATION & OPERATION
INSTRUCTIONS. FAILURE TO FOLLOW THE INSTRUCTIONS
AND WARNINGS MAY RESULT IN SERIOUS OR FATAL INJURY
AND/OR PROPERTY DAMAGE, AND WILL VOID THE PRODUCT
WARRANTY. THIS PRODUCT MUST BE INSTALLED BY A
QUALIFIED PROFESSIONAL. FOLLOW ALL APPLICABLE
LOCAL AND STATE CODES AND REGULATIONS. IN THE
ABSENCE OF SUCH CODES, FOLLOW THE CURRENT EDITIONS
OF THE NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC
CODE, AS APPLICABLE.
This Product, like most Products under
pressure, may over time corrode, weaken and
burst or explode, causing serious or fatal injury, leaking or
flooding and/or property damage. To minimize risk, a licensed
professional must install and periodically inspect and service the
Product. A drip pan connected to an adequate drain must be
installed if leaking or flooding could cause property damage. Do
not locate in an area where leaking could cause property damage
to the area adjacent to the appliance or to lower floors of
the structure.
This product can expose you to chemicals
including lead, which is known to the State of
California to cause cancer and birth defects or other reproductive
harm. For more information go to www.P65Warnings.ca.gov.
RUPTURE OR EXPLOSION HAZARD. Do not
expose Product to freezing temperatures or
temperatures in excess of 100°F. Do not adjust the precharge or
re-pressure this Product except during installation or regular
inspection. Replace the Product and do not adjust the precharge
if corroded, damaged or with diminished integrity. Adjustments
to precharge must be done at ambient temperature only. Failure
to properly size the Product or follow these instructions may
result in excessive strain on the system and may lead to Product
failure, serious or fatal personal injury, leakage and/or
property damage.
A 100 psi relief valve must be installed to
prevent excess pressure. At least once every 3
years or if discharge is present, a licensed contractor should
inspect the pressure relief valve and replace if corrosion is evident
or the valve does not function. FAILURE TO INSPECT THIS
VALVE AS DIRECTED COULD RESULT IN UNSAFE PRESSURE
BUILD-UP WHICH CAN RESULT IN PRODUCT FAILURE, SERIOUS
INJURY OR DEATH AND/OR SEVERE PROPERTY DAMAGE AND
VOID THE PRODUCT WARRANTY.
Chlorine & Aggressive Water: The water
quality can significantly influence the life of
this Product. You should test for corrosive elements, acidity, total
solids and other relevant contaminants, including chlorine and
treat your water appropriately to insure satisfactory performance
and prevent premature failure.
NOTE: Inspect for shipping damage. Notify freight carrier or store where purchased immediately if damage is present. To avoid
risk of personal injury and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a qualified
professional immediately. Current copies of the product manual can be viewed at www.amtrol.com. Use proper safety equipment
when installing.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER
HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL INJURY AS
WELL AS PROPERTY DAMAGE.

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PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY
IMPORTANT GENERAL SAFETY INFORMATION -
ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.
If the control is set too high or the pump is
running when the water supply is shut off and
there is no demand on the system, the pump will run continuously,
can overheat and become damaged, potentially resulting in
product failure, leaking and/or rupture.
All wire and circuit breaker sizings are
preliminary recommendations only. For your
safety, local codes, and in their absence, national codes must be
followed to minimize the risk of electric shock, property damage
or personal injury.
The pump motor is designed for use with
single phase, 60Hz AC voltage. Use with any
other type of power will cause damage to the motor. The pump
motor is factory wired for 115 VAC.
The power for this pump must be on a
dedicated circuit. In addition, a shut off switch
should be visible and near the pump. Use a 20 amp circuit.
Before attempting any service or disassembly,
shut off power to the pump. Ensure power is
disconnected prior to removing motor or control covers. Ensure
power is disconnected before cleaning is attempted.
Electrical grounding of the product is essential
for your protection and the protection of the
motor. All wiring should be completed by a licensed electrician,
and in accordance with local codes or in their absence, the
National Electrical Code. Before starting the wiring installation,
disconnect all power to the circuit.
The product should only be connected to a
municipal, cold water supply, and in systems
with a minimum pressure of 10 psig at all times, measured under
flow at the tap closest to the location of the pump inlet.
Sizing Chart
Pump
Model
Minimum
Flow Rate
From City
Supply
Minimum
Flow
Pressure
From City
Supply
Minimum
Service
Line Size
Water
Meter
WWPB10 10 gpm 10 psig 3/4"3/4"
Metal piping must be used for all inlet and outlet lines to the unit.
Do not oversize pump. Inadequate water supply will result in
poor performance, noisy operation and pump damage.
Pre-Installation
• DO NOT USE FOR PRE-HEATED WATER SUPPLIES;
• DO NOT USE FOR ANYTHING EXCEPT COLD WATER (AMBIENT
TEMPERATURE NOT TO EXCEED 100° F);
• DO NOT USE IN SYSTEMS WHERE LOW PRESSURE IS DUE
TO LEAKS OR WHERE LEAKS IN THE PLUMBING SYSTEM
MAY EXIST;
• DO NOT USE IN SYSTEMS WHERE THE WATER SUPPLY CAN
DROP BELOW 10 PSIG;
• DO NOT USE IN SERIES WITH ANOTHER PUMP (SUCH AS IN
PRIVATE WELL WATER SYSTEM);
• DO NOT RE-PRESSURIZE TANK AFTER INITIAL INSTALLATION;
• USE ONLY METAL FITTINGS AND PIPING AT INLET
AND OUTLETS.
The system must be placed indoors only on a solid level surface
with a drip pan piped to a drain with adequate capacity for
large volumes of water in the event the system ruptures or fails.
Consider the risks posed by tanks under pressure and the potential
for leaking and/or flooding damage in selecting the location. The
unit must not be placed in an environment that would expose the
water in the tank to temperatures below freezing or in excess
of 100° F.
Be sure to leave a minimal clearance of 12” around the unit for
access should field adjustments be necessary in the future and to
permit maintenance and inspection (Figure 1).
INSTALLATION
Plumbing
1. Shut the incoming cold water supply off and relieve pressure.
2. Position the unit on a hard and level surface.
3. Plumb the unit as shown in Figure 1, including a bypass loop to
allow water availability in the event of future service. The use of
a spring-loaded check valve is important for proper operation.
Failure to do so will result in premature failure of the product
due to excessive pump cycling.
4. When plumbing is complete, open the incoming water supply,
close the bypass loop and check for leaks.
5. Open a cold water fixture to purge trapped air.
SPRING-LOADED
CHECK VALVE
BOOSTED WATER
TO HOME
SHUTOFF VALVES (3)
RELIEF VALVE
INCOMING
WATER SUPPLY
BYPASS
LOOP
Figure 1

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ELECTROCUTION HAZARD. DISCONNECT
ALL ELECTRICAL POWER BEFORE
SERVICING. THE PRODUCT MUST BE ELECTRICALLY
GROUNDED. DO NOT INSTALL ON ELECTRICAL SERVICE RATED
ABOVE 20 AMPS.
WIRING THE DIGITAL CONTROL
1. Provide a dedicated, 115VAC / 20A circuit.
2. Shut circuit breaker off and verify power is disconnected.
3. Loosen screw and remove junction box access cover.
4. Route wiring through conduit hole, using proper connector.
5. Connect wiring as shown in Figure 2, using wire nuts.
6. Reinstall the access cover and proceed to the "START-UP"
section before restoring power.
START-UP
BEFORE CONTINUING, ENSURE THAT ALL
WIRING IS COMPLETED AND THE UNIT IS
GROUNDED. CHECK FOR OPEN DRAIN VALVES OR OTHER
SOURCES OF FLOODING BEFORE STARTING UNIT.
1. Prime pump if necessary and adjust tank precharge to
manufacturer’s recommendation for intended pressure range.
The factory control setting is 40 psi cut-in and 60 psi cut-out.
2. Turn on power and ensure digital display illuminates.
Display will blink momentarily and the pump will start. If not,
check installation.
3. The display will now read the current water pressure.
4. Allow the pump to reach the factory cut-off setting of 60 psi.
IF THE PUMP CANNOT REACH THIS SETTING, DISCONNECT
POWER AND SEE “PROGRAMMING THE DIGITAL CONTROL”.
5. Check for leaks and repair as necessary.
PROGRAMMING THE DIGITAL CONTROL
This unit is factory programmed to turn the pump on (cut-in)
at a pressure of 40 psi and turn the pump off (cut-out) when
the pressure reaches 60 psi. The pump is capable of adding
approximately 40 psi to the incoming water supply pressure.
Therefore, if the incoming water pressure is below 20 psi, the
cut-in and cut-out settings require tank precharge adjustment.
Municipal Supply
Flow Pressure
Cut-In
Setting
Cut-Out
Setting
Tank
Precharge
10 psi 30 psi 50 psi 28 psi
15 psi 35 psi 55 psi 33 psi
20 psi 40 psi* 60 psi* 38 psi*
*Factory default setting
1. Press and hold . When LO appears, release. This will determine
the pressure at which the pump activates.
2. When number appears, tap  or  to change cut-in setting.
3. Press  again. When HI appears, tap  or  to change cut-
out setting. This will determine the pressure at which the pump
shuts off.
4. Press  a third time. The last Error Code in memory will display
(see Error Code table in Troubleshooting section). If no errors
have occurred, the display will show - -
5. After approximately 10 seconds Pr will appear, indicating the
settings are programmed. Display will then revert to the current
water pressure.
NOTE: The settings will now be stored until changed manually,
even in the event of power failure.
NOTE: If pump cannot reach cut-out setting within 5 minutes with
no water running, lower the pressure settings in 5 psi increments
to fall within the pump’s pressure capabilities.
PRECHARGE ADJUSTMENT PROCEDURE
Adjust the tank air precharge only at time of
the digital control cut-in setting initial
installation. Water pressure must be relieved to adjust precharge.
1. Ensure power is off and drain unit to relieve all water pressure.
2. Remove protective air valve cap.
3. Release or add air as necessary to make the pre-charge
pressure 2 psig below the pressure switch pump cut-in setting.
4. Replace protective air valve cap.
OPERATION
ENSURE THE SWITCH IS OPERATING PROPERLY. AFTER
MAKING ANY ADJUSTMENTS, OBSERVE AT LEAST ONE PUMP
CYCLE TO VERIFY PROPER PUMP SHUT-OFF.
Please contact Water Worker Technical Support at 844.DIY.TANK
if further assistance is required.
Winterizing: To drain, disconnect the pump from power and open
a faucet to bleed off water pressure. Lay the tank on its side to
disconnect the piping between the pump and tank to completely
drain the unit. Ensure exposed piping connected to unit is
also drained.
DO NOT ADJUST PRESSURE OR
RE-PRESSURIZE THIS PRODUCT EXCEPT
FOR ANY ADJUSTMENTS MADE AT THE TIME OF INITIAL
INSTALLATION WHEN THE UNIT IS NEW. RE-PRESSURIZATION
OF A WEAKENED, DAMAGED, OR CORRODED UNIT CAN CAUSE
AN EXPLOSION, POSSIBLY CAUSING SERIOUS OR FATAL
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
If pressure adjustments are necessary because of changes in inlet
pressure, check the condition of the unit first to make sure there
is no corrosion of the tank or any connected lines or fittings. Take
appropriate precautions. Never adjust the pressure if water is
leaking from the air stem. Replace any damaged or corroded tank.
Also, air loss is an indication that damage, corrosion or weakening
of the unit may have occurred and it should not be re-pressurized.
MAINTENANCE
This unit, including the pump, must be periodically inspected by
an experienced professional for signs of damage, corrosion and
leaking. The pump should be checked to ensure it is turning on
and off at the appropriate cut-in and cut-out points. At a minimum,
after installation, a thorough inspection of all components should
take place annually. However, note that units in settings with
frequent use, where corrosion, high humidity or aggressive water
is more likely to occur, and as the unit ages, should be inspected
more frequently.
Figure 2
Factory Wiring
(Blue & Stripe)
Digital Control
Junction Box
Pump Motor
White (Neutral)
Black (Hot) 115VAC
Line Voltage
Supply

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CODE REASON ACTION SOLUTION
E1 Rapid cycle
Excessive amp draw Pump continues to operate. See “Pump Starts Too Often” above. Have pump checked for proper operation.
E2 Insufficient water
supply running pressure
below 10 PSI
Shuts off pump. Auto restart
after 60 min.
1. Determine cause of insufficient water supply.
2. Ensure supply valves are fully open.
3. Inspect pump.
E3 Improper voltage Shuts off pump. Restore voltage to proper range. Pump automatically
restarts with proper voltage.
E4 Power disturbance Shuts off pump. Disconnect power for one minute. Replace control if
error persists.
To reset control at any time, press    buttons simultaneously for 5 seconds.
To “invert” the display for easier viewing, press   together for 3 seconds.
The digital control incorporates built-in diagnostics. If the unit is not functioning properly or is inoperable, look for an
error code (example E1) on the digital readout before proceeding. Error codes are listed in the table at the bottom of
this page.
PROBLEM CAUSE SOLUTION
Pump will not start.
1. No Power.
2. Faulty wiring.
3. Damaged motor.
4. Damaged control.
1. Check circuit breaker and fuses, tighten connections.
2. Check wiring per installation diagram in this booklet. If pump
hums, but will not start, check pump motor wiring.
3. If display illuminates with no error code, but pump will not start,
replace pump.
4. If power is present at control but display is blank, replace control.
Pump runs but will
not build pressure.
1. Supply closed/blocked.
2. Bypass loop open.
3. Pump plumbed backwards.
4. Bad internal parts.
1. Open all supply valves, ensure check valve is not sticking, clean
any filters.
2. Close bypass valve.
3. Reverse inlet/outlet.
4. Check for bad seals or broken impeller. Repair or replace as
necessary.
Pump builds pressure
but will not shut off.
1. Operating pressure set too high.
2. Bad internal parts.
3. Control line blocked.
1. Reduce control setting as necessary.
2. Check for bad seals or broken impeller. Repair or replace as
necessary.
3. Remove control line and blow compressed air to clear.
Pump starts too
often (cycles under
30 sec.).
1. Control differential too narrow.
2. Tank precharge incorrect.
3. Waterlogged pressure tank.
1. Set cut-in and cut-out 20 psi apart.
2. Set air pressure 2 psi below cut-in while pump is off and water
pressure is zero.
3. If water emerges from tank air stem when depressed, replace tank.
THE DIGITAL CONTROL CONTAINS NO SERVICEABLE PARTS. REMOVAL OF INTERNAL CIRCUIT BOARD COVER
WILL VOID WARRANTY.
WARRANTY
Visit www.waterworkerdiy.com for complete warranty details.
TROUBLESHOOTING
WATER WORKER is a registered trademark in the U.S. and elsewhere. All rights reserved.
T: 884.DIY.TANK • F: 401.885.2567 • www.waterworkerdiy.com