SHURFLO WATER BOOST SYSTEMS
®
804-067 MAXI 3/4" [19 mm] NPT
804-068 MAXI 1/2" [12.7 mm] BARB
WB2-LVPO-02 MEDIUM 3/8" [9.5 mm]
804-034 MEDIUM 3/8" [9.5 mm] BARB
804-042 MINI 3/8" [9.5 mm] BARB
CAUTIONS & WARNINGS
WARNING: Risk of electrical shock. The pump is supplied with a grounding connector and grounding-type attachment plug.
To reduce the risk of electrical shock, be certain that it is connected only to a properly grounded, grounding-type
receptacle. To prevent electrical shock, disconnect power before initiating any work. In the case of pump failure,
the motor housing and/or the pumped fluid may carry high voltage to components normally considered safe.
WARNING: If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
WARNING: Never pressurize the accumulator tank higher than its maximum operating pressure of 100 psi [6.9 bar, 690
kPa] limit. Never expose the tank to higher than 100ºF [37.8ºC] ambient temperature environment.
WARNING: The device is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety. Children should be supervised to
ensure they do not play with the device.
CAUTION DO NOT adjust the pump pressure switch setting. Switch setting will not significantly alter flow rate or pressure.
Improper adjustment may cause severe overload or premature failure, not covered under warranty.
CAUTION DO NOT operate the pump at pressures which cause the motor to exceed the amperes rating indicated on the
nameplate. The pump is equipped with thermal breakers to interrupt operation due to excessive heat. Once the
temperature of the motor is within proper limits, it will automatically reset and the pump will start operation without
warning. The motor is equipped with an integral, non-serviceable fuse. Pumps which have an “open” fuse are not
covered under the limited warranty.
ACCUMULATOR STORAGE/FLOW-RATES
Shurflo Water Boost Systems by Pentair are designed for applications when low, fluctuating, or no water pressure exists. The
pump and accumulator maintain consistent water pressure to a source (for a given duration) as long as incoming water is
sufficient. Depending upon the Water Boost System model, support of up to four (4) non-carbonated valves in moderate volume
accounts is achievable. The Medium and Maxi Water Boost Systems may be used to supply water to a carbonator for back-up
during short periods of insufficient water pressure. The pump pressurizes the accumulator to 90 psi [6 bar, 600 kPa]. Consult
the water boost system performance charts for projected length of flow and/or back-up. The pump is CE and C-Tick listed.
INSTALLATION INSTRUCTIONS
WARNING: DO NOT pre-charge the accumulator with CO2. In the event of failure, carbonated water will react with brass
components in system equipment. Use clean, dry air or nitrogen.
WARNING: A qualified electrician, in accordance with all local electrical codes, should perform all electrical outlet
(receptacle) wiring connections. Circuit protection is dependent on the individual application requirements.
Failure to provide proper circuit protection may result in a motor failure, which is not covered under warranty.
CAUTION An RCD or GCFI having a maximum residual current of 30mA must be included in the fixed wiring in accordance with
the wiring rules.
1. The water booster system is to be installed between the water source and non-carbonated valve(s) and/or carbonator (see
Installation figure on page 3). Turn off city water supply before installation.
FILTRATION & PROCESSING SOLUTIONS
INSTRUCTION AND OPERATION GUIDE
NOTE 1: D
epending upon your application, it is recommended that a Shurflo® water pressure reducer
valve of appropriate pressure be installed after
the filter system before the line is teed just prior
to the carbonator and the non-carb valves.
2. Remove the power cord, power supply and reclosable
adhesive backed fasteners from their packaging. Plug
the pump's power cord into the supply's IEC female
socket. Attach the power supply to a clean, flat surface
using the included reclosable adhesive backed fasteners.
The power supply should be located such that liquids can
not drip or splash onto it. Connect the AMP connectors at
the power supply and pump together.
3. Secure water booster to a solid surface with four (4)
3/8‑inch (9.5mm) diameter lag screws with sufficient
length through holes in tank legs and into wood stud, or
suitable fastener into solid surface to support 72 pounds
(32.7 kg). It may be mounted vertically or horizontally
near the city water entry; 2-gallon water booster will fit
under most drop-in dispenser cabinets. Be certain the
pre-charge valve is accessible for checking/filling the
tank.
4. Use NSF® listed, high pressure braided 3/8-inch ID [9.5
mm], 1/2-inch [12.7mm] or 3/4-inch [19mm] tubing to
connect the inlet/outlet ports depending on inlet and
outlet port size. Secure all tubing connections with SS,
step-less Oetiker® clamps unless using 3/4-inch [19mm]
NPT connections. Cable-tie all tubing securely to prevent
kinks or sags that can inhibit performance or cause
damage to the pump.
6. In most cases, 50 psi [3.4 bar, 340 kPa] will provide the
required pressure at a typical beverage dispense system.
For best pump performance, set accumulator pre-charge
pressure at approximately 20 psi [1.3 bar, 130 kPa] below
maximum pump pressure (as stated on the pump label),
and/or at approximately the pump turn-on pressure. For
further information, consult the factory.
7. Turn ON incoming water supply.
8. Plug in power supply to water boost system and
carbonator.
9. Open the dispenser valves and purge air/water from
tubing/accumulator. Close the dispenser valve(s) and let
the pump fill the accumulator. The pump may not obtain
shut-off pressure if excessive air is trapped within the
system. Repeat this step 3-5 times as necessary before
taste testing.
Note 2: I f subject to freezing temperature, the pump,
tubing and accumulator tank MUST be drained of
all water.
Note 3: T
he accumulator tank pre-charge should be
checked bimonthly or as necessary. All outlet
water pressure must be depleted from tank prior
to checking or recharging.
Remove cap to
precharge tank.
Recap after
charging tank.
5. Remove accumulator air fitting cap and pre-charge
with clean, pressurized air or nitrogen. Tank should be
pre-charged at the minimum required pressure of the
application. Check accumulator label for pre-charge
pressure. Replace air fitting cap securely. Check pressure bimonthly.
WATER BOOST SYSTEM PERFORMANCE
60
Mini Water Boost 60 PSI Pump
Flow Rate
4.0
55
3.7
50
3.4
1.25 oz p/sec (37 ml p/sec)
Units tested with 50 psi
[3.45 bar, 345 kPa]
pre-charge and 20 psi
[1.4 bar, 140 kPa]
city water pressure.
2 Gallon Water Boost
90
80
75
Pressure (PSI/Bar)
PSI BAR
Liquid Outlet (PSI/Bar)
Units tested with 40 psi
[2.76 bar, 276 kPa]
pre-charge and 20 psi
[1.4 bar, 140 kPa]
city water pressure.
2.5 oz p/sec (74 ml p/sec)
5
6
7
8
9
10
60
50
20
11
10
Mini Water Boost 90 PSI Pump
15
20 25 30 35
Time (Seconds)
85
80
1.25 oz p/sec (37 ml p/sec)
5.4
2.5 oz p/sec (74 ml p/sec)
6
7
8
9
10
Time (Seconds)
INSTRUCTION AND OPERATION GUIDE
11
45
50
55
60
4.0 oz p/sec (118 ml p/sec)
90
Flow Rate
6.2
80
5.8
40
6 Gallon Water Boost
5.5
5
2
10
6.9
Flow Rate
6.0
8.0 oz p/sec (237 ml p/sec)
5
100
Pressure (PSI/Bar)
Liquid Outlet (PSI/Bar)
90
2.0 oz p/sec (59 ml p/sec)
4.0 oz p/sec (118 ml p/sec)
6.0 oz p/sec (177 ml p/sec)
30
Time (Seconds)
PSI BAR
Flow Rate
40
6.0 oz p/sec (177 ml p/sec)
8.0 oz p/sec (237 ml p/sec)
10.0 oz p/sec (296 ml p/sec)
70
E 12.0 oz p/sec (355 ml p/sec)
4.8
60
4.1
50
3.4
40
2.8
30
2.1
E
20
1.4
10
0.7
10
20
30
40 50 60 70
Time (Seconds)
80
90 100 110 120
WATER BOOST SYSTEM INSTALLATION DIAGRAM
Mounting Holes
(Reference Only)
Dispenser
Maxi
12"
(305 mm)
Still Water
Medium
9.5"
(241 mm)
2 x 8.5"
(216 mm)
Cold Plate
Water
Filter
Concentrate
Filtered
Water
Carbonated
Water
CO2
SHURflo
WPRV
Carbonator
Mini Water Boost
804-042
Medium Water Boost
804-034
9.5"
(241 mm)
Medi: 4.75" (121 mm)
Maxi: 9.75" (248 mm)
City
Water
Water Boost
System
Maxi Water Boost
804-067 & 804-068
9.5"
[241 mm]
16" [406 mm]
10.5" [267 mm]
13.5" [343 mm]
10.5"
(267 mm)
12"
[305 mm]
11.5" [292 mm]
9.5"
[241 mm]
4.6" (117 mm) deep
17" [432 mm]
19" [483 mm]
10.5" [267 mm]
13" [330 mm]
SPECIFICATIONS
PUMP SPECIFICATIONS
Motor Design (Model 8025-998-338)
100 – 240 VAC / 50–60 Hz to 24 VDC permanent magnet; thermally protected with a non‑replaceable integral fuse
Duty Cycle
Intermittent (max. run time 20 min. within one hour)
Turn-On/Off Pressure
70 PSI [4.8 bar, 480 kPa] / 90 PSI [6.2 bar, 620 kPa]
Recommended Maximum Inlet Pressure
30 psi [2 bar, 200 kPa]
Check Valve
Internal (prevent reverse flow)
Temperature Limits
34º – 100ºF [1.1º – 37.8ºC]
Port / Fitting
QD ports female / 3/8", or 1/2" barb fittings or 3/4" NPT fittings
TANK SPECIFICATIONS
Mini 804-042
Medium 804-034
Maxi 804-067 & 804-068
Total Volume (air/liquid)
21 oz [0.62 L]
2 gal [7.6 L]
6 gal [22.7 L]
Approximate Draw Down Volume*
8 oz (0.22 L)
0.75 gallons (2.8 L)
3.1 gallons (11.7 L)
Bladder Material
Butyl
Chlorbutyl
Chlorbutyl
Housing Material
Glass Filled Nylon
Stainless Steel
Stainless Steel
Temperature Limits
34º – 100º F [1.1º – 37.8º C]
34º – 100º F [1.1º – 37.8º C]
34º – 100º F [1.1º – 37.8º C]
Maximum Working Pressure
100 psi [6.9 bar, 689 kPa]
100 psi [6.9 bar, 689 kPa]
100 psi [6.9 bar, 689 kPa]
* Drawdown volume varies with tank pre-charge, pump operating pressure and city water pressure. Specifications reflect tests at 50 psi [3.4 bar, 340 kPa] pre-charge w/20 psi [1.3 bar,
130 kPa] city water pressure, 90 psi [6.2 bar, 620 kPa] pump pressure.
INSTRUCTION AND OPERATION GUIDE
3
LIMITED WARRANTY
INLINE WATER FILTER SYSTEM
Shurflo® Water Boost Systems by Pentair® are warranted to be free of defects in material and workmanship under normal use, for a
period of one (1) year from the date of manufacture, or one (1) year of use, with proof of purchase. This limited warranty will not exceed
two (2) years, in any event.
The limited warranty will not apply to Shurflo Water Boost Systems that were improperly installed, misapplied, or incompatible with
fluids or components not manufactured by Pentair. Water Boost System failure due to foreign debris is not covered under the terms of
this limited warranty. Pentair will not warrant any Water Boost System which is damaged or modified outside the Pentair factory.
Returns are to be shipped postage prepaid to the service center; Pentair Filtration Solutions, LLC. Pentair shall not be liable for freight
damage incurred during shipping, package returns carefully.
N15188
Pentair Shurflo Technical Support:
Tel: 800,942.1153 (US Only) • 630.307.3000 Main
Email: servicespecialist@pentair.com
FILTRATION & PROCESSING SOLUTIONS
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