laguna PRESSURE-FLO 700 UVC Notice D'installation Et D'entretien page 4

and biological filtration, and UVC sterilization. The filters are designed to work in
tandem with a solids handling pump. For best results, use a Laguna Max-Flo
circulating pump. With the filter connected to the outlet of a pump, water enters the
unit through water inlet (X). It is then forced to pass through the mechanical
filtration stage, consisting of foam filters that intercept and trap dirt and debris.
Next, water reaches the biological filtration* chamber where it comes into
contact with beneficial bacteria. Finally, dirt-free water passes along the UV-C lamp
unit (B), where it is exposed to ultraviolet rays that inhibit algae growth. Water then
returns to the pond through outlet (W).
*Pressure-Flo 2500 UVC does not feature the biological filtration chamber.
Backwash-Cleaning System
During operation, coarse debris is captured at the surface of the foam filters. As a
result, sooner or later depending on pond conditions, the external surface of the foam
filters will clog and hinder proper filtration, because of reduced water flow. The
limited water flow through the foam filters reduces the effectiveness of both the
biological and UV-C filtration. This condition can easily be detected thanks to the
cleaning indicator (U).
Pressure-Flo filters feature a unique Backwash-Cleaning System that completely
cleans the entire surface of the mechanical foam filters. The complete cleaning opera-
tion can easily and comfortably be done in a few minutes with no need to open the
unit. Cleaning will ensure that the filter will perform at optimal levels for many days.
Though the Backwash-Cleaning System prolongs the time between maintenance ses-
sions, thorough cleaning of the unit is necessary periodically. See Cleaning and
Maintenance of the Pressure-Flo Filter for more details.
Cleaning indicator
This unit features a cleaning indicator (U), which lets you know when the filter needs
backwashing or cleaning. The red indicator height is approximately proportional to the
filter clogging level. When the red indicator is low, the filter is clean. When the red indi-
cator is at the top of its stroke, the filter needs cleaning.
The cleaning indicator may be affected by many variables, such as waterfall height and
pump performance. Its operating characteristics have been calibrated
according to specific application conditions indicated in the chart below (Selecting
the right Pressure-Flo and Max-Flo pump for your Pond). Different applica-
tion conditions may lead to different results.
Selecting the right Pressure-Flo and
Max-Flo pump for your pond
Using the following table, select the correct Laguna Max-Flo pump/Pressure-Flo filter
combination according to your pond size and conditions. Due to the high number of
variables, the following recommendations are offered as general guidance only.
120V/60HZ PF 700 PF 1400 PF 2100
230-240V/50HZ PF 2500 PF 5000 PF 8000
High load of Liter 1800 3500 5500
fish in shade US gal. 475 925 1456
Low load of fish Liter 1800 3500 5500
under direct sunlight US gal. 475 925 1456
Low load of fish Liter 2500 5000 8000
in shade US gal. 660 1320 2113
High load of fish Liter 1250 2500 4000
under direct sunlight
US gal. 330 660 1057
Recommended 230-240V MF2200 MF3500 MF6000
Laguna Max-Flo pump* (MF3500)
Recommended
MF600
Laguna Max-Flo 120V MF900 MF1500
(MF900)
pump*
Meters 4 4 5.5
Recommended total hose
length**
Feet 13 13 18
Minimum hose dia. to
Inches 1 1/4 1 1/4 1 1/4
achieve above
Millimeters 32 32 32
performances
Recommended max.
Centimeters 60 60 100
waterfall height to
achieve above
Inches 24 24 39
performances
Maintenance of filter will be more frequent during the hot summer months
* If the application includes a higher waterfall than the maximum indicated, choose
a bigger pump.
4
** Total length outlet + inlet. For reference only. The final flow rate depends on
many factors, such as the length and the diameter of the hose, hosing kinks or
bends, and the height of the waterfalls.
Low load of fish = Goldfish only, less than 5 cm/1.9 inches per
100 litres/26 U.S. gal.
High load of fish = Koi or Goldfish, more than 5 cm/1.9 inches per
100 litres/26 U.S. gal.
Installation
Location of the filter
Choose a suitable location for your Pressure-Flo filter, keeping in mind the following
recommendations:
• Place the Pressure-Flo Filter on a firm and level base, where it is safe from
flooding and has enough ventilation. Protect the appliance from direct sunlight.
• Place either above ground or buried with the lid clamp (O) at least 5 cm/2 inch-
es above ground level.
• To avoid overheating, do not cover the filter.
• Place the filter at least 1 meter/3.2 feet from the pond edge and make sure it can-
not fall into the water in any way.
• Make sure you have full access to the lid of the unit for maintenance.
• Do not operate the filter with a water pressure greater than 0,4 bar or
5.8 PSI of pressure. Never connect the filter to public water works.
• Orient the filter so that the water inlet (X), water outlet (W) and drain outlet (T)
point in the desired directions to avoid sharp bends in the hosing
Hose connections
Pressure-Flo filter requires the connection of 3 hoses (not included): one for the inlet
of the unit (from the pond pump), one for the outlet which takes filtered water to the
pond, and one for discharging dirty water from the filter to a location outside the
pond during maintenance.
When selecting and installing the hoses for your application, maximize potential flow
by choosing the largest diameter and shortest hosing possible and avoiding kinks
and sharp bends.
Pressure-Flo Filters are equipped with 3 universal click-fit couplings (H), which will
make connecting and disconnecting the hosing fast and easy. Connect flexible hoses
to click-fit couplings and secure them with an adequate hose clamp (not included).
IMPORTANT
– Universal click-fit couplings (H) allow the connection of
different diameter flexible hosing, but it is important to cut off the
unused smaller diameter hose-tails to avoid flow restrictions.
When flexible hoses are securely connected to click-fit couplings, you can disconnect
hosing from the unit simply by pushing the click-fit coupling button and pulling. To
connect click-fit couplings to the unit, insert them onto the male connectors located
PF 3200
on the lid of the unit and ensure that the coupling button comes up fully.
PF 12000
Water Inlet (X): the Water Inlet is where pond water enters the Pressure-Flo filter.
8000
Simply connect the outlet of a Laguna Max-Flo solids handling pump to the Pressure-
2113
Flo inlet (X) using Laguna non-kink hosing. The pump circulates dirty water from the
8000 pond to the Pressure-Flo filter.
2113
Water Outlet (W): the Water Outlet returns filtered water to the pond when the
12000
filter is operating in filtering mode. Hosing attached to the water outlet (W) can be
3170
placed directly in the pond or used to create a watercourse or waterfall. This outlet is
activated when the Mode Selector Switch (V) is pointing at the water outlet (W)
6000
(Filtering Mode). The end of the outlet hosing should be placed as far away from the
1585
pump inlet as possible to maximize water circulation in the pond.
MF7500
Drain Outlet (T): the Drain Outlet is where dirty water exits the filter when using the
Backwash-Cleaning System. Connect a hose to the Drain Outlet to allow dirty water to
drain out of the filter and into a sewage system or garden. This outlet is activated when
MF2000
the Mode Selector Switch (V) is pointing at the Drain Outlet (T) (Drain Mode).
IMPORTANT
6 – During normal "Filtering Mode" operation, close the
Drain Outlet (T) using the Click-fit Sealing Cap (I).
19
TIP: dirty pond water is nutrient-rich and chlorine-free and is particularly good for
1 1/4
watering the garden.
32
100
39
Filtering mode Drain mode
Filter Start-up, Operation and Backwash-Cleaning
IMPORTANT!
– Before the first and every
start-up verify the following:
• Before the first start-up, it is necessary to install the
lid O-ring (P), which is supplied in a separate poly
bag. This O-ring must be correctly inserted in its
seat at the top of the filter canister (Fig 1).
• Before the first start-up, it is necessary to install
the UV-C Lamp and perform the Filter Wet Test.
Refer to the section "Changing the UV-C Lamp and
Cleaning the Quartz Sleeve" for detailed
instructions.
• The Biological Media must be placed in the Filter
Case as indicated in the picture (except Pressure-
Flo 2500 UV-C)(Fig. 2)
• Ensure that the lid (G) is securely closed with the lid
clamp (O) and the lid O-ring (P) correctly sitting in its seat.
IMPORTANT: Before applying the lid clamp (O), the lid
(G) must be pressed down until the gap between lid and
filter case is eliminated. The lid clamp must be latched,
with the safety metal lock (Z) inserted correctly inside the
latch slot. WARNING: Pay attention not to pinch your
fingers or the line cord, while latching the lid clamp. A
padlock (not included) can be inserted in the
bottom hole of the safety lock (Z) to secure it.
• The Mode Selector Switch (V) must be set to the "Filtering
Z
Mode" position with the switch pointing at Water Outlet
(W). Mode selector (V) must be fully turned 90°;
do not set it at intermediate positions.
• Ensure that all hoses have been securely connected to the unit and placed in their final
position. Ensure that the male section of all Click-Fit couplings is equipped with the
rubber O-Ring (aa).
During normal "Filtering Mode" operation, close the Drain Outlet (T) using the
Click fit Sealing Cap (I).
Always ensure that the Click-fit Sealing Cap is securely locked in place (push
button fully up).
CAUTION – Do not operate the UV-C lamp (B) without water flowing through
the unit.
After the above verifications, proceed as follows:
1) Turn on the pump and run the filter for several minutes to check that there are no
water leaks
2) If everything is OK and water regularly flows through the unit, plug the Pressure-
Flo UV-C lamp (B) into the power supply. The lamp indicator (R) lights up with a
blue shimmer when the UV-C is operating; this light can be better viewed after dusk.
Keep the filter working for 24 hours a day and ideally all year round, provided that there is
no frost and water can flow freely through the unit.
Backwash-Cleaning System
When the foam surface becomes clogged, the Backwash-Cleaning System quickly
and efficiently restores normal filter operation without having to open the unit. Cleaning
should be done at least weekly or whenever the cleaning indicator (U) detects that the fil-
ter is clogged or dirty or when cloudy water comes out of the filter.
If the pond is very dirty and during the first weeks the unit is used, the filter may need more
frequent cleaning.
Proceed as follows:
1) Remove the click-fit Sealing Cap from the Drain Outlet (T). CAUTION: there will be a small
flow of water coming out.
2) Connect a drain hose to the Drain Outlet (T) and ensure that it will expel the dirty water
where desired.
3) Turn the Mode Selector Switch (V) to the Drain Mode position (point selector fully at drain
outlet (T).
4) Slide both cleaning handles (S) up and down. The up-and-down sliding motion
propels two cleaning blades inside the unit to rub against the face of the foam
filters, dislodging and suspending debris in the outer chamber of the filter. Water loaded
with the suspended debris is forced out of the filter through the Drain Outlet (T), which is
directly connected to the filter's outer chamber. Proceed for several minutes until you see
clear water coming out through the drain hose.
CAUTION
– – The cleaning system uses pond water. This fact must be considered when
using the cleaning feature. At the end, refill the pond to the desired water level.
5) Turn the Mode Selector Switch (V) to the Filtering Mode position (selector fully pointing at
Water Outlet (W). The filter is now in normal filtering mode. A flow of green water coming
out for a few seconds is quite normal.
6) Seal the Drain Outlet (T) using the Click-fit Sealing Cap (I). Ensure that it is securely
locked in place (push button fully up).
If the filter remains clogged at the end of this operation, perform Foam and Biological
Media Cleaning below.
Cleaning and Maintenance of the Pressure-Flo Filter
WARNINGS:
• Do not attempt to open the lid clamp (O) and lift the lid when the pump
P
and the filter are in operation. The lid clamp latch features a safety metal
insert to prevent accidental opening.
• DO NOT ATTEMPT TO VIEW THE LAMP WHEN LIT! Direct exposure to
ultraviolet light can damage eyes and skin.
• The UV-C lamp (B) and the quartz sleeve (C) are made of glass. Handle all
Fig. 1
parts with care.
• Make sure that the internal electrical parts of the appliance are dry
Fig. 2 before, during and after the maintenance operations.
• The Mode Selector Switch (V) simply diverts water but does not stop it.
Foam and Biological Media Cleaning
When the Backwash-Cleaning System does not produce expected results or
at least once in a season, it may be necessary to thoroughly wash or replace the foam
filters (M). During the hot summer months, more frequent cleaning is required.
During this operation, the biological media can also be cleaned and/or replaced
(except Pressure-Flo 2500 UVC).
1) Switch off the UV-C lamp (B) by disconnecting the unit plug from the main power
supply.
2) Switch off the pump that supplies the Pressure-Flo Filter.
3) Disconnect all hosing from the unit by releasing the click-fit couplings (push
the press button and pull).
4) Slowly lift the Cleaning Handles (S) up to their maximum extension above the
filter.
5) Remove the safety insert from the metallic lid clamp (O). Unlatch the metallic lid
clamp.
6) Remove the Lid (G) by grasping the cleaning handles or by gently levering into
the side slots by means of an adequate flatheaded screwdriver. CAUTION: do
not force the guiding rods sideways as this may damage the unit.
CAUTION
– The lid integrates the UV-C unit with the lamp and the quartz sleeve,
which are made of glass. HANDLE ALL PARTS WITH CARE!
7) You now have access to the Foam Filters (M). Remove all of them together by
grasping and lifting the internal Foam Support Frame (N).
8) Free the Foam Filters (M) from the Foam Support Frame (N) and rinse with pond
water or replace them as required.
9) Rinse the biological media located in
the lower section of the Filter Case
(Q) with pond water or replace as
required. Pressure-Flo 2500 UVC does
not have a biological media chamber.
10) Clean the Filter Case (Q) with water,
particularly around the top edge
where the lid sealing O-ring (P) is
seated. Clean the filter lid (G) with
water.
11) If necessary clean the Cleaning
Indicator (U) after disassembling it as follows: 1) remove the retaining flange (E) by
rotating it counter-clockwise (the Mode Selector Switch (V) must be set to the
"Filtering Mode" position), 2)
remove the indicator and its
spring. Rinse all parts in water
and reassemble them with care.
(Fig. 3 - Fig. 4)
12) Inspect and clean the two
Cleaning Blades (L) and the guide rods. If necessary, replace the blades with new
ones. Each blade can easily be detached from the guiding rod by unscrewing the
screw in the middle.
13) Put the foam and biological filtering media back in their original locations. Ensure
that the foam filters are properly stacked with no space between them.
14) Reassemble the unit with care. Make sure that the biological filtration media does
not interfere with the foam support frame (N) and that the frame is refitted
correctly.
15) The filter is now ready for start-up. Read and follow all instructions in Filter
Start-up, Operation, and Backwash-Cleaning.
NEVER use soap or detergents for cleaning. Any remaining traces may
pollute the pond and result in damage to sensitive fish tissues.
E
Fig. 3
Fig. 4
5