Lorentz PP2000 User manual

Sun. Water. Life.
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. [phone] - 0, Fax - 29, www.lorentz.de
Errors excepted and possible alterations without prior notice. Pictures may differ from actual products depending on local market requirements and regulations.
120501
PP2000 AC PowerPack
AC/DC converter to power PS1200 and PS1800
pump systems from a generator or utility power
Application
The Problem
Some solar pumps may not provide sufficient flow under all
conditions, especially in unusually cloudy weather or when
sufficient storage cannot be provided.
The Solution
LORENTZ AC PowerPack allows the pump to be powered by
an AC generator or commercial utility power. The solar array
remains connected. If the sun comes out again, less power
is drawn from the AC source.
A common application is for a portable genset (gaso-
line generator) to run a well pump. When the generator is
stopped (or runs out of fuel) the pump automatically returns
to solar power when the sunshine is sufficient. No manual
switching is required.
The PowerPack will power the pump to its full capacity. With
some systems, it will produce a greater flow rate than you
will see with solar power.
Specifications
AC input: 240V (±15 %), 47 to 63 Hz
AC input current: 6.2A
PV input voltage: Vmp: 110 – 140 V DC,
Umax: 200 V DC
DC output max.: 180V DC, 1,500 W
overload protection: internal fuse, 15A
enclosure: steel, gasket-sealed, indoor-use,
hinged front cover with key-lock
must be protected from direct mid-day sun
IP22
ambient temperature: max. 45°C
Dimensions
400 mm × 300mm × 140 mm
15.75 in × 11.8 in × 5.5 in
weight: 23.5 kg / 52 lbs.
Warranty
Warranted to be free from defects in material and work-
man-ship for TWO YEARS from date of purchase.
WARNING Power Pack must be OFF
while it is being wired to the solar
pump controller, or controller damage
may result. Never connect it while it is
“hot”.
Wire Sizes
All wires must be #14 AWG (2.5mm2) or larger.
Grounding
Bond the metal enclosure to the ground connections of
the AC power source and the solar power system. See your
pump’s instruction manual.
AC Power Source
Install a 15A circuit breaker at the power source or
distribution box.
AC Input
Connect AC power to terminals L and N.
INSTRUCTIONS
Installation
WARNING This device is to be installed,
connected and serviced by qualified
personnel only. Ensure all power sourc-
es are disconnected when making con-
nections to this unit. Follow all appropriate electri-
cal codes. There are no user-serviceable parts inside.
Mounting
Mount the AC PowerPack close to the pump controller, in
a vertical position. Cover the unit from direct rainfall. You
will find four mounting brackets in a plastic bag inside the
enclosure.
WARNING PowerPack must be protect-
ed from solar heat, especially direct
mid-day sun. Mount it in the shade. If
there is no shady location, make a
shade from sheet metal. Allow free air circulation
around the cooling fins on the back of the enclo-
sure. For wall mounting, use spacers to stand it out,
so the cooling fins do not touch the wall.

Sun. Water. Life.
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. [phone] - 0, Fax - 29, www.lorentz.de
Errors excepted and possible alterations without prior notice. Pictures may differ from actual products depending on local market requirements and regulations.
120501
Solar Power In
Connect the + and – wires from the solar array disconnect
switch to the SOLAR POWER IN terminals. If the solar pump
was previously installed without this device, the wires will
need to be removed from the POWER IN terminals of the
solar pump controller or from the disconnect switch, and
diverted to the Power Pack.
DC Power Out
Connect two wires from the DC POWER OUT + and – ter-
minals to the POWER IN + and – terminals in the solar
pump controller.
Internal Fuse
There is a 15A fuse in the upper left. This fuse should blow
only if there is an electrical fault in the PowerPack, or the
pump controller, or the wiring between them. It will NOT
blow if the pump is short-circuited or overloaded. (In that
case, the pump controller will stop the pump.)
Spare fuses are included in the parts bag. Additional fuses
are available from electronic suppliers (5 × 20mm, 15A,
time-delay). If the fuse continues to blow, the fault must be
found and repaired. Substitution of a higher-rated fuse or
bypassing the fuse will void the warranties of both the AC
PowerPack AND the pump controller.
Operation
Connect the AC power source and turn on the Power Pack
AFTER it has been connected to the PS1200 or PS1800 se-
ries controller. When the controller and the Power Pack are
turned on, the System ON light should show on the cont-
roller, and the pump should start. When the Power Pack is
turned OFF (or its AC source disconnected), the solar array
will remain connected. When the pump is running on so-
lar and the Power Pack is switched ON or OFF, the sudden
transition may “surprise” the pump controller and cause the
pump to stop. This is not a fault. It will restart automatically
in about 2 minutes.
If the AC power source is from the utility line (not a genera-
tor), it is best to turn OFF the PowerPack or its AC sup-
ply when it is not needed. Otherwise, the PowerPack will
draw a small amount of power all the time. Switching can
be done automatically using a timer switch on the AC line.
Timer switches of many kinds are available from suppliers of
electrical, swimming pool and irrigation equipment.
Once the PowerPack is turned OFF it will take up to 50 sec-
onds for the POWER ON LED to be OFF. This indicates that
there is still voltage stored in the capacity.
(max. 200VDC)
SOLAR
POWER IN
GROUND
(max. 180VDC)
DC
POWER OUT
(240VAC,
50-60Hz)
AC
POWER IN
GROUND GROUND