RPS TPP-750 User manual

RPS Tankless
Pressure Pump™
TPP-750 User Manual

With the RPS Tankless
Pressure Pump™
system you'll get
smooth continuous
steady reliable water
pressure without the
need for AC power or
the utility grid.
The solar charged
battery bank powers a
centrifugal booster
pump that varies its
speed and power based
on your demand for
water at the exact
pressure you select
from 20 to 45psi.

1. Loosen Priming Screw.
2. Create positive pressure in supply line to
push water into pump inlet or fill line with water
3. Once air is completely purged, power on
the pump to purge air completely before fully
tightening Priming Screw again
4. Adjust Pressure Setting with controls. Pump
will adjust speed and smoothly cycle on & off to
maintain desired setting.
NEW: Wire Priming ‘hook’ in the kit allows
you to reach into the top outlet of the
pump and pull up the small ring on the
check valve so you can pour water in the
top and fill the chamber easily.
PRIMING VIDEO: ** Very Helpful
http://www.youtube.com/c/RPSSolarPumps
PRIMING YOUR PUMP
TPP PLUMBING OPTIONS
* Important: Care should be taken when plumbing to ensure tight connections and maintain prime.
Use teflon tape or thread sealant on all connections. Minor leaks or seepage will cause the pump to
cycle and deplete the batteries.
Your Tankless Pressure Pump can
plumb directly from your storage tank to
your main line. It will auto-adjust speed
to maintain pressure.
You can also draw water up from a
pond, shallow well or cistern (up to
15ft) but you must maintain prime with
a footvalve and tight connections.

Inlet 1.25" FNPT Power Range 750 - 1500w
Outlet 1" FNPT Suction Up to 4M, 15ft (wetted)
Acceptable pH 5 - 8, Water (No Fuel) Max Current 8 Amps
Temp. Range 0 - 40°C, 32 - 104°F Box Size 394 x 260 x 330mm
Max Liquid Temp 90°C, 194°F Weight 10kg, 22lbs
TPP PUMP DIMENSIONS
Compatible Pump TP-750 Only
Battery Voltage 24 VDC Only
Battery Wiring 10AWG or Thicker
Dimensions 300mm x 270mm x 95mm,
12in x 11in x 4in
Temp. Range 0 - 40°C, 32 - 104°F
OPTIONAL AC INPUT
(See 220v Wiring)
220 VAC Only
Weight 2.17kg, 4.8lbs
Recommended
Clearance
Mount with 12 inches of space
in all directions
TPP CONTROLLER DIMENSIONS

INSTALLATION DETAILS
Ensure there are no shadows or other obstructions on the solar panels. While shadowing a small
corner of a single panel may not seem like a big deal, since the panels are connected in series, a
small shadow can limit the power output from all other panels connected in series! This means a
small shadow on a single panel could reduce system power by hundreds of watts. Time to get out
that chainsaw and trim some trees!
TPP CONTROLLER — Your Controller is not waterproof and should be located in a dry dust-free
location, protected from the sun and the elements and pests such as mice and bugs. Mice love to
chew wires and spiders and moths will build nests wherever they can find room. While we
understand you cannot eliminate all pests, it might be time to spray some insecticides around your
shed and set some mousetraps! There is nothing worse than finding insulation chewed off your
electrical wires. *The fan remains running in low power mode at all times to protect the equipment.
This fan uses very little power and it running, increases the lifetime of the system.
TPP PUMP - Your pump is designed for use out of the direct elements, sun, rain and snow.
Covering or building into a small enclosure is ideal. Since water does expand when it freezes, care
should be taken to winterize the system if being used in a climate that experiences hard freezing. If
foot valve is being used, care should be taken in plumbing the intake to ensure tight connections
which will avoid the loss of prime.
Batteries - Unless you already bought a TPP system that included the appropriate number of RPS
55Ah 12V Deep Cycle GEL batteries, customers will need to supply their own battery bank. RPS
recommends 12V AGM / sealed lead acid batteries that are designed for maintenance free
operation. More common flooded deep cycle marine or RV batteries can also be used. Batteries
should be stored in a dry location protected from the elements.
RPS SOLAR PANELS — Solar panels should
be mounted on a secure structure, ground
mount or top of pole mount. Several ideas can
be found at www.RPSSolarPumps.com.
Panels should face true South and at an angle
appropriate for your latitude. If you are
mounting your panels on an already built
structure, try to get as close to the correct
angle as possible.

TP-750- 2
TP-750- 4
TP-750- 8
WIRING YOUR SOLAR PANELS
You will link your solar
panels together and connect
to the controller by clipping
MC4 connectors together.
Each MC4 connector is
either a male end or female
end (see
image).
They simply
snap together
to make safe
and easy
connections.
Note: If using your own
solar panels do not
exceed 55Voc input!

BATTERY WIRING 24V ONLY
2x 12v Battery Configuration
Batteries Wired in Series
Recommended 8 AWG wire
4x 12v Battery Configuration
Batteries Wired in Series / Parallel
Recommended 8 AWG wire
4x 6v Battery Configuration
Batteries Wired in Series
Recommended 8 AWG wire
RPS recommends AGM / sealed lead acid batteries that are designed for several maintenance
free years of operation. They should also be stored in a dry location protected from the elements.
To prevent significant voltage drop, the batteries should be located as close to the Controller as
possible. Within 3 feet is ideal. If further than 3ft is required, the wires may be extended using
appropriate gauge cables. The batteries operate best at room temperature and it is best to keep
them out of freezing conditions for maximum performance.
Note: Do not exceed two 12V batteries in
series or four 6V batteries in series. For
extra battery capacity add sets in parallel.

CONTROLLER DISPLAY
220V AC INPUT (Only if Required)
Your Controller is designed to take solar power and charge your 24v battery
bank. As an optional backup, it is also setup to accept 220V AC to both charge
your batteries and run your pump directly if desired. There is a 3 prong outlet
and a pigtail in your kit that allows for the wiring of 220v line power connector.
Wiring 220v is only for certified professionals or those familiar with 220v power.
Green Stripe Wire - GROUND
Blue (or Black) Wire - L1 HOT
Yellow (or Red) Wire - L2 HOT
Wire out or cap your neutral wire. L1 L2
G

CONTROLLER MODES
MODE to select the working mode:
1. NORMAL (most common)
Increases the water pressure or draws water
up from below pump and pressurizes. This is
the normal booster pump application.
1.0 - 2.0 Low Pressure
2.0 - 3.0 Medium Pressure
3.0 - 4.0 High Pressure
Note: Pump shutoff will become unstable if
pressure is set too high. If pump will not
shut-off, reduce pressure setting
2. BOOST
Increases poor water pressure. For example
increasing 20PSI water pressure to 45PSI on
a the second story of a house.
3. TIMER
Operates for the specified amount of time and
then stops the pump. Used for filling elevated
tanks.
LOCK / UNLOCK Hold + and -
together
SYSTEM RESET OPTIONS:
POWER RESET:
Controller Soft Reset: Turn off controller power button (display will stay on if solar
panels are connected), wait 60 seconds and turn power button back on.
Controller Hard Reset: Disconnect solar panels and batteries. Wait 60 seconds,
connect batteries, then solar panels.
Pump Hard Reset: Unplug pump, wait 60 seconds, plug pump back in.
PUMP SETTINGS RESET:
Pump Factory Reset: Press and hold MODE for 3 seconds, all factory parameters will
be restored to factory settings.

CONTROLLER TROUBLESHOOTING
No LCD
Display No Power Check power button, Batteries are connected, Check Connections, Voltages, Hard Reset
0
FAULT
AC Output
Overload
Soft Reset,
Hard Reset
2
FAULT Low Output Voltage
Check battery for low voltage, Disconnect load
and perform hard reset, allow batteries to
charge
3
FAULT
Over Temp /
Short
Remove controller from direct sunlight,
Hard Reset
4
FAULT
Fan
Stalled
Check fan for obstructions, Blow out unit
through vents with air duster can,
Hard Reset
5
FAULT High Battery Voltage
Ensure “24V” battery input (two 12V or four 6V
batteries in series)
Soft Reset,
Hard Reset
6
FAULT
AC Output
Overload
Disconnect load, Hard reset, Ensure proper
voltage output and re-connect load
7
FAULT
Output Wave
Fault Hard Reset
8
FAULT High Output Voltage Hard Reset
9
FAULT
AC Input
Fault
Check AC input voltage, Ensure proper pigtail
wiring, Hard Reset
18
FAULT
N/A LCD Screen
Initialization
Screen may flash fault 18 when unit is
restarting due to low input voltage
Your Controller is not waterproof and should be located in a
dry dust-free location, protected from the sun and the
elements and pests such as mice. moths and bugs. Mice love
to chew wires and spiders and moths will build nests wherever
they can find room. While we understand you cannot eliminate
all pests, it might be time to spray some insecticides around
your shed and set some mousetraps! There is nothing worse
than finding insulation chewed off your electrical wires or
moths clogging the units fan.
*The fan remains running in low power mode at all times to
protect the equipment. This fan uses very little power and it
running, increases the lifetime of the system.
VOLTAGE CHECK
Take a DC Voltage
Reading of each battery.
Battery voltages range
from 11.5VDC
(dangerously low) to
14.4VDC (fully charged)
depending on the state
of charge. Low
voltages? Charge for 8
hours in full sun.
SOFT RESET
Press and Hold Power
Switch
HARD RESET
Disconnect Batteries
and Solar Panels for 60
seconds. Reconnect.

PUMP TROUBLESHOOTING
No Lights On Pump Low or no power
To pump
Check Connections, Soft Reset of Controller, Check batteries
for low voltage
Pump Doesn’t Start Pipe is
blocked Ensure valves are open to clear airlocks
Pump Doesn’t Stop Check for leaks, Turn down
pressure
Small leaks in plumbing are the most common, check around
outlet cover, Turn down pressure setting
Pump Sputters Pump not properly primed
or air entering system
Prime pump and remove all air from system, check inlet pipes
for leaks, Install foot valve for suction applications
Settings may have been
changed Reset to factory defaults Press and hold “MODE” for three seconds
E01 Low input voltage Check input voltage, Check battery voltage
E02 Over voltage input Ensure input voltage is less than 280V AC
E03 Pressure sensor error Hard Reset, Replace pressure sensor
E04 Pump over temperature Remove pump from direct sun, Improve ventilation
E05 Pump Overload Ensure water is fairly clear (no mud or large debris)
E06 Display over temperature or
sensor failure
Remove from direct sun, Improve ventilation, Hard reset,
Contact RPS
E07 Not Used n/a, Hard Reset
E08, E09 Motor phase mismatch,
Over current
Motor not operating at commanded speed, check for
obstructions, check for stuck impellers
E10 Startup fault Hard Reset, Contact RPS to check for impeller obstructions
E11 Motor communication error Check for damage to motor wires, Hard Reset, Contact RPS
E12 Not used n/a, Hard Reset
E13 Display communication
error Hard Reset, Contact RPS
Hard Reset
Unplug pump, wait 60
seconds, plug pump
back in.

WARRANTY: Rural Power Systems Inc extends to the original consumer purchaser a limited warranty against defects in material and
workmanship for a period of twelve months from the date of purchase. This warranty covers the pump, controller, and solar panels.
Rural Power Systems Inc will repair or replace any defective part or parts of the product free of charge within the first twelve months of
purchase. In the event of a malfunction, the purchaser must return the product to receive a replacement. The warranty is limited to the
repair or replacement of the product. Rural Power Systems Inc disclaims all liability for indirect and/or consequential damages, such as
any installation charges, damage to mounting structures/ buildings, or loss of revenue. The warranty does not apply when the
equipment has not been installed according to the instructions or damage has occurred through abuse, carelessness, improper
installation, accident of mishandling during shipment, or connecting to an improper voltage. Your warranty is linked to your product’s
serial number which is on record at Rural Power Systems Inc. All repairs not covered by warranty or outside the warranty period are
charged at normal rates.

NOTES:
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RPS Solar Pumps
40250 County Rd 27
Woodland CA 95776
888-637-4493
Call or Text