Amtrol RP-25HP, RP-15HP, RP-10HP User Manual

AMTROL PRESSURISER

®

WATER PRESSURE BOOSTER SYSTEM

WITH GUARDIAN CP™ CONTROL

INSTALLATION & OPERATION INSTRUCTIONS

Models RP-10HP, RP-15HP and RP-25HP

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.

USE ONLY WITH POTABLE WATER SYSTEMS.

Do not operate in a setting with freezing
temperatures or where the temperature can exceed 200°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.

CALIFORNIA PROPOSITION 65 WARNING! This product contains a
chemical known by the State of California to cause cancer and to cause
birth defects or other reproductive harm. (California Installer/Contractor

- California law requires that this notice be given to consumer/end user
of this product.) For more information: www.amtrol.com/prop65.html

temperatures in excess of 200°F. Do not adjust the pre-charge 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 pre-charge 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.

working pressure designated in the Product Manual, whichever is less.
At least once every 3 years or if discharge is present, a licensed
contractor should inspect the temperature and 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 TEMPERATURE OR PRESSURE BUILD-UP WHICH CAN
RESULT IN PRODUCT FAILURE, SERIOUS INJURY OR DEATH AND/
OR SEVERE PROPERTY DAMAGE AND VOID THE PRODUCT
WARRANTY.

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.

RUPTURE OR EXPLOSION HAZARD. Do not

expose Product to freezing temperatures or

A relief valve must be installed to prevent pressure

in excess of local code requirement or maximum

Chlorine & Aggressive Water: The water quality

can significantly influence the life of this Product.

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

demand on the system, the pump will run continuously, can overheat
and become damaged, potentially resulting in product failure, leaking
and/or rupture.

codes, and in their absence, national codes must be followed to minimize
the risk of electric shock, property damage or personal injury.

will cause damage to the motor. The pump models RP-10HP, RP-15HP
and RP25-HP are pre-wired for 115 vac; however, they can be rewired to
be used with 230 vac. Consult motor nameplate for the wiring diagram.

visible and near the pump. Use a 20 amp circuit.

when the water supply is shut off and there is no

All wire and fuse sizings are preliminary
recommendations only. For your safety, local

The pump motor is designed for use with single
phase, 60Hz ac. Use with any other type of power

The power for your pump must be on a dedicated
circuit. In addition, a shut off switch should be

Sizing Chart

Amtrol

Pressuriser

Flow Rate

®

From City

Minimum

Supply

RP-10HP 10 gpm 10 psig

RP-15HP 15 gpm 10 psig 1" 1"

RP-25HP 25 gpm 10 psig 1 1/4" 1 1/4"

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 and pump damages.

Minimum

Flow Pressure

From City

Supply

Minimum
Incoming

Pipe Size

3

/4"

Water
Meter

3

/4"

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SYSTEMS);

• DO NOT RE-PRESSURIZED TANK AFTER INITIAL
INSTALLATION;

• DO NOT PIPE EXCEPT WITH METAL 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).

Figure 1

12"

Amtrol Pressuriser

®

Before attempting any service and disassembly,

disconnected prior to removing motor. Ensure power is disconnected
before cleaning is attempted.

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 to be
used for the AMTROL Pressuriser®.

systems with a minimum pressure of 10 psig at all times, measured under
flow at the tap closest to the location of the AMTROL Pressuriser®
installation.

shut off power to the pump. Ensure power is

Grounding of the pump is essential for your
protection and the protection of the motor. All wiring

The AMTROL Pressuriser® should only be
connected to a municipal, cold water supply, and in

Installation

1. Remove protective air valve cap.

2. Check pre-charge pressure (pressure should be + or – 10% of

the factory setting). Factory pre-charge is 38 psig.

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. (Remove air valve label,
replace protective air valve cap, peel off backing of label and
apply on air valve cap.)

MINIMUM SUPPLY LINE AND METER SIZE FOR

THE RP-25HP IS 11/4". THIS APPLIES TO ALL LINES INCLUDING
THOSE USED WITH THE WATER METER OR FITTINGS BEFORE THE
PUMP. CONTACT FACTORY IF MINIMUM FITTING/LINE SIZE IS
BELOW THE ABOVE NUMBERS.

5. Install a SPRING LOADED CHECK VALVE in the city supply

line on the suction side of the pump along with a shut-off valve.
Failure to do so will result in premature failure of the AMTROL
Pressuriser due to excessive pump cycling.

6. Install a by-pass loop (Figure 2).

Figure 2

CITY

WATER

SUPPLY

SPRING

CHECK VALV E

7. Pipe the city supply after the shut-off valve to the suction side
of the pump, as shown.

8. Connect the house supply line using a 100 psig maximum relief
valve as shown (Figure 2). It is important that the pressure
relief valve be installed on the pump discharge prior to any
shut off valves.

THE RP-10HP IS 3/4", THE RP-15HP IS 1" AND

BYPASS
LOOP

SHUT-OFF

VALVES

FLOW

TO SYSTEM

FLOW

PRESSURE
RELIEF
VALV E

RP-10HP
RP-15HP
RP-25HP