Atlantic Boilers RS TURBOFLOW DN 32 S020+ Installation and operation manual

ATLANTIC 2000 - boilerplant sales ACM ATLANTIC - commissioning and maintenance ATLANTIC 4422 – spares
Atlanc 2000 Registered in England Company No: 1477687 Vat Reg No: 306 0653 89
PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: technical@atlancboilers.com www.atlancboilers.com
RS TURBOFLOW
PLATE HEAT EXCHANGERS
OPERATING & MAINTENANCE MANUAL
MODELS - DN32: S020+ S040+ S080+ DN50: S070+ S160+ S260+
DN65: S125+ S180+ DN100: S300+ S450+ S700+
DN150: S400+ S600+ S900+ DN200: S650+ S990+

RS Plate Heat Exchanger
Installation, Operation
and Maintenance
Every RS heat exchanger is pressure tested before delivery & is ready for
installation.
A– To avoid damage to the PHE & prevent injury to personnel it is better to
move the unit as shown in Fig A
B - The PHE should be installed in the upright position. Make sure you have
enough space to open the PHE for any inspections or repairs. Space should
be provided at the sides and ends to allow work to be carried out - a minimum
of 300mm. as shown in Fig B
C – Piping should be connected according to inlet/outlet labels
Entrata –inlet I – primary circuit
Uscita – outlet II – secondary circuit
as shown in Fig C
D – When connecting threaded connections, always use two wrenches
or spanners to avoid breaking of the gasket seals.
START UP
1. Close all isolating valves – no pumps in operation
2. Check for the desired working pressure
3. Fill & vent the secondary circuits, valve by valve through the plate heat exchanger. Open
valves gradually to prevent shock on the plates.
4. Having filled the secondary circuit, close the valves again
5. Repeat the procedure on the primary circuit, again without all pumps running. Vent the
circuits through the safety valve levers. On completion close the valves.
6. Bring on the secondary pump, at the same time opening up the valves gradually to allow
smooth flow.
7. Repeat the procedure for the primary pump.
7. After 30/45 minutes stop the plant. Then isolate, open & inspect all strainers for sediment.
Clean & repeat as necessary until the strainers remain clear.
8. Top-up & commence automatic control & operation.
MAINTENANCE
Visual inspection of the plate heat exchanger, cleaning of strainers & flushing of the system is
all that is required for maintenance. If the plate heat exchanger develops a leak then isolate &
drain down the plate heat exchanger and tighten all the spacer bolts with equal turns until they
become tight, the correct amount of tightening can be checked by contacting ATLANTIC 2000.
Open valves until hydraulic working pressure is reached. If the plate heat exchanger continues
to leak, a new set of gaskets is available from ATLANTIC 4422, tel: [phone].
www.atlanticboilers.com
EMAIL [email protected]
Tel [phone] Fax [phone] Box 11, Ashton-under-Lyne, OL6 7TR
Primary inlet
secondary
inlet Primary outlet
secondary
outlet
Fig A
Fig B
Fig C
300

1 - GENERAL
1.1 - Preface
Your heat exchanger will give you full satisfaction
provided you maintain it well, in full, and diligently.
• Be sure to keep the following documents in a
safe place:
1) this owner’s and servicing manual (supplied with
the heat exchanger);
2) the CE certificate of conformity, if necessary;
• Your plate heat exchanger has a limited range
of temperatures and pressures. As it is highly
sensitive to sudden changes in these parameters,
all precautions must be taken
to avoid operating outside the limits indicated on
the nameplate.
• Excessive temperatures will damage the gaskets
(install the appropriate safety thermostats, etc.).
• Excessive operating pressures or differential
pressures will damage the gaskets and plates
(install the appropriate safety valves, etc.).
• Plate heat exchangers are highly sensitive to
pressure surges.
Accordingly, the control must be designed to
prevent this occurring and QUARTER-TURN VALVES
MUST NOT BE INSTALLED ON ANY OF THE
CIRCUITS.
• Given the large number of gaskets, leaks
may occasionally occur. To protect against this
eventuality, install protective screens if dangerous
fluids are used or the temperatures rise to above
60°C.
• Atlantic may not be held liable for any damage
or injury resulting from failure to follow the
instructions in this manual.
• Atlantic is not liable for any consequences that
may result from the accidental mixing of the fluids
used in the heat exchanger.
1.2 - Regulations
• Official inspections: some heat exchangers
must be regularly inspected by official bodies. It
is the operator’s responsibility to organise these
inspections directly with the competent
bodies. The dossier sent to our principal must
therefore be kept in a safe place.
• The heat exchanger risk category according to
the European Pressure Equipment Directive (PED)
currently in force, is indicated on the identification
nameplate.
• You must make sure that the entire system
complies with the directives and legislation in effect
in the country of operation.
• This heat exchanger must not be used for
purposes other than those stated on the order
documents. In particular, do not use fluids other
than those specified at the time of ordering.
• Scrupulously comply with the operating
conditions set out in the order documents. They
were used to determine the equipment category
set out in the European Pressure Equipment
Directive. Atlantic shall not be held liable for any or
consequential or incidental damages resulting from
failure to do so.
• Atlantic must be notified of any changes in the
operating conditions and will inform you of the
procedure to follow.
1.3 - Warranty
• The warranty is valid only if the heat exchangers
operate under the conditions for which they were
initially designed.
• The warranty can be applied only if pressures
and temperatures of the fluids can be measured
on the heat exchanger’s inlets and outlets.
• Spare parts are warranted only if the storage
instructions have been followed (see the section
STORAGE). The plate pack is surrounded by a
strap (the so called warranty seal) that, if left
unbroken, is proof that the exchanger has never
been disassembled. Removing this strap, without
written authorization of the manufacturer, will
always void the warranty.
1.4 - Residual risks: damage >
cause (prevention)
POSSIBLE BODILY INJURY
• Unit tipover > Failure to follow the handling or
anchoring instructions (the unit has a very high
centre of gravity; follow the rigging instructions;
anchor the unit to the floor).
• Burns > Direct contact with the unit while in
operation or with scalding or corrosive fluids
following a leak (cut off the supply to the unit; set

up barriers around it; wear PPE =
Personal Protective Equipment).
• Cuts > Handling the plates without protective
glove (wear PPE).
• Injury > Caused by pressure, affecting in
particular the eyes or bare skin (wear PPE and
prohibit access by unauthorised personnel).
• Poisoning > Skin contact with, or inhalation
of, a dangerous fluid (wear PPE and use safety
equipment).
• Poisoning > Combustion of the gaskets (never
dispose of the gaskets by burning them).
• Poisoning > Accidental mixing of circulating
fluids resulting in the release of hazardous fumes
(make sure that resulting mixture is not dangerous).
COMMON TYPES OF EQUIPMENT
DAMAGE
• Gasket destruction > One fluid circulated at a
high temperature (always circulate the cold fluid
FIRST and the hot fluid LAST).
• Gasket destruction > Sudden changes in
pressure or temperature (monitor the control).
• Gasket destruction > Overrun of operating
conditions (check the operating parameters).
• Plate destruction > Corrosion or erosion (check
the type and speed of the fluids being circulated;
install filters).
• Plate destruction > Overpressure (check the
pressure of the fluids; watch out for sudden or
frequent changes in pressure or temperature).
• Plate destruction > The heat exchanger has
frozen (either make sure that the room temperature
does not drop below 0°C while the system is not in
use or drain the circuits).
• Leaks > The tightening dimension is wrong
(check the tightness of the plate pack).
• Leaks > The frame or a number of plates are
dented (contact Atlantic).
• Pollution > Leak of a dangerous or polluting fluid
(have spill trays on hand).
• Explosion > Accidental mixing of circulating fluids
resulting in the release of explosive fumes (make
sure that resulting mixture is not dangerous).
Prohibit access to the system by unauthorised
personnel.
Make sure that servicing technicians have the
proper training.
Keep this manual near the heat exchanger.
1.5 - Receiving the unit
• Upon delivery, check the contents for missing or
damaged items. Note any missing or damaged
items on the delivery slip. Inform AtlanticI of said
damaged or missing items by registered letter
within three days of delivery and forward
a copy to Atlantic.
• The front of each heat exchanger is fitted with a
nameplate listing a serial number. Please state this
number in all correspondence.
1.6 - Handling
• The handling and unloading equipment is for the
account of the recipient.
• Follow the rigging instructions (Figures 1a, 1b
and 2).
• Use web slings (no metal chains). Insert them in
the designated notches on the head and follower.
• The unit’s weight is stated on the delivery slip
and the shipping note.
• When moving and handling the heat exchanger,
make sure that it is properly supported and
secured as its high centre of gravity may cause it to
tip over easily.
• Never lift the unit by its guide rails, compression
bolts or pipes, as doing so can cause them to
bend.
• Shield the plates from impacts as they could
cause irreparable leaks.
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

1.7 - Intended use
• Our gasketed plate heat exchangers are designed to heat or cool fluids by means of heat
transfer through indirect contact with another fluid.
• The specific operating conditions of your heat exchanger’s are set out in the contractual
documents agreed throughout the equipment’s supply.
• If the heat exchanger will be used with fluids intended for human consumption, please contact our
consultants.
• The heat exchangers and their components must never be used for purposes other than those for
which they were initially designed.
31
1.7 - Intended use
• Our gasketed plate heat exchangers are designed to heat
or cool fluids by means of heat transfer through indirect
contact with another fluid.
• The specific operating conditions of your heat exchanger’s
are set out in the contractual documents agreed throughout
the equipment’s supply.
• If the heat exchanger will be used with fluids intended for hu-
man consumption, please contact our consultants.
• The heat exchangers and their components must never be
used for purposes other than those for which they were
initially designed.
Fig.1a Fig.1b Fig. 2
32
1.8 - Description
1 - Frame plate
2 - Pressure plate
3 - Tightening bolts
4 - Guiding/Carrying bar
5 - Guiding bar
6 - Aluminium Spacer
7 - Plates + gaskets
8 - Column
9 - Roller
10 - Feet
11 - Liners
12 - Porthole

33
• MANUFACTURING YEAR: Year of manufacture.
• MODEL: Heat exchanger model and product configuration.
•SERIAL No.: Production number, to identify your heat
exchanger.
• DATE: Date of manufacture.
• REF.: Eventual notes and/or different references.
• ALLOWABLE TEMPERATURE MIN. / MAX. (TS):
Minimum and maximum allowable temperatures.
•ALLOWABLE PRESSURE MIN. / MAX. (PS):
Minimum and maximum allowable pressure, in bar.
• TEST PRESSURE (PT): Test pressure, in bar.
• VOLUME: Total capacity of the heat exchan-
ger, in litres.
• PED CLASSIFICATION: Risk category of the
heat exchanger (hazard group and physical
state of the fluid).
•CE MARKING: Only the heat exchangers
classified in PED risk category I, II, III or IV
can be CE marked. The identification number of the Noti-
fied Body will appear near to the CE Mark symbol for heat
exchangers classified in risk category II, III or IV.
• CIRCULATION: 1 indicates the inlet and outlet of the primary
loop. 2 indicates the inlet and outlet of the secondary loop.
• TIGHTENING MEASURE: Minimum and maximum tightening
dimension (d) between the plates, in mm.
• WEIGHT (EMPTY): Empty weight of the heat exchanger,
in kilograms.
1.9 - Nameplate
• Stuck to the frame plates.
d
2 - STORAGE
• Store the heat exchangers in a dry room protected from the weather and maintained at a
temperature between +5°C and +35°C.
• The heat exchangers must be placed on blocks dimensioned and adjusted to ensure adequate
stability and levelness, on a floor protected from caving in. Make sure that they do not touch each other
and that they are not in direct contact with the floor and any walls.
• Protect them from impacts, dust and from the risk of liquid or solid deposits and make sure that
nothing is placed on them.
• Do not remove the protection on the end of the pipes until you are ready to make the hydraulic
connections.
• All unused spare parts must be stored away from damp, light, and dust, and protected from impacts.
• Gaskets and gasketed plates must be stored in appropriate boxes at a temperature of between
10°C and 30°C. Maximum shelf-life: 12 months.
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

3 - INSTALLATION
Always read this guide carefully before
working on the
unit and keep it in a safe place for future
reference.
3.1 - Choice of location
The intended location of the unit should be
fully accessible so as
to ease servicing and maintenance
operations and allow easy
removal of the plates from the side of the
unit (Fig. 3). Adequate
clearance must be left in front of the safety
and control devices.
3.2 - Installation
recommendations
• Atlantic plate heat exchangers have a
limited operating
pressure and temperature range. Install
all the necessary safety devices to prevent
overrunning the limits specified on the
order documents. Approval to use the
plate heat exchangers at higher conditions
must be obtained from Atlantic.
It is recommended to fit pressure and
temperature test points near the unit.
• Make sure that the heat exchanger is
compliant with the
safety rules in force on the site of use
(explosive atmosphere, etc.).
• Affix appropriate visual warning sign
wherever the surface
temperature above 60°C or below 0°C.
• If the heat exchanger is to be installed
on framework, the 35 structure must be
designed to withstand the weight of the
34
2 - STORAGE
• Store the heat exchangers in a dry room protected from the weath-
er and maintained at a temperature between +5°C and +35°C.
• The heat exchangers must be placed on blocks dimensioned
and adjusted to ensure adequate stability and levelness, on
a floor protected from caving in. Make sure that they do not
touch each other and that they are not in direct contact with
the floor and any walls.
• Protect them from impacts, dust and from the risk of liquid or
solid deposits and make sure that nothing is placed on them.
• Do not remove the protection on the end of the pipes until
you are ready to make the hydraulic connections.
• All unused spare parts must be stored away from damp,
light, and dust, and protected from impacts.
• Gaskets and gasketed plates must be stored in appropriate
boxes at a temperature of between 10°C and 30°C. Maxi-
mum shelf-life: 12 months.
3 - INSTALLATION
Always read this guide carefully before working on the
unit and keep it in a safe place for future reference.
3.1 - Choice of location
The intended location of the unit should be fully accessible so as
to ease servicing and maintenance operations and allow easy
removal of the plates from the side of the unit (Fig. 3). Adequate
clearance must be left in front of the safety and control devices.
minimum recommended
value (mm)
Model A
DN32 700
DN50 1000
DN65 1000
DN100 1500
DN150 1500
DN200 2000
Fig. 3
A
3.2 - Installation recommendations
• CIPRIANI plate heat exchangers have a limited operating
pressure and temperature range. Install all the necessary
safety devices to prevent overrunning the limits specified
on the order documents. Approval to use the plate heat
exchangers at higher conditions must be obtained from CIP-
RIANI. It is recommended to fit pressure and temperature
test points near the unit.
• Make sure that the heat exchanger is compliant with the
safety rules in force on the site of use (explosive atmos-
phere, etc.).
• Affix appropriate visual warning sign wherever the surface
temperature above 60°C or below 0°C.
• If the heat exchanger is to be installed on framework, the
exchanger when in operation (filled) and
with its accessories.
• If necessary, affix the hazard symbol
corresponding to the fluid in accordance
with applicable standards.
• Take all appropriate steps to mitigate
the effects of any significant human,
environmental or financial consequences
of failure.
• Make sure that the heat exchanger is
always installed vertically, stable, and
secured using all its anchorage points. If
necessary, fit additional anchors suitable
for the foreseeable stresses.
• Install drains and vents, shut-off valves,
and fill and drain valves on the pipes so
that the heat exchanger can be serviced
without disrupting the system.
• In the event of seasonal use, drain the
heat exchanger completely to prevent any
risk of freezing or corrosion if a corrosive
fluid is used.
• If accessories are installed on the
heat exchanger, refer to their specific
instructions.
3.3 - Hydraulic connections
• To keep the insides of the pipes clean,
do not remove the seals on their ends until
you are ready to make the hydraulic
connections.
• The insides of the pipes must be free
of all foreign matter (sand, welding slag,
other solid matter, etc.) that could damage
the plates and gaskets.
• Filtration: If the fluids to be circulated
through the heat exchanger contain
suspended matter, a filtration system of up
to 500 μm must be installed.
• Check the tightening dimension
specified on the nameplate. Refer to
section 5.7 if retightening is needed.
34
2 - STORAGE
• Store the heat exchangers in a dry room protected from the weath-
er and maintained at a temperature between +5°C and +35°C.
• The heat exchangers must be placed on blocks dimensioned
and adjusted to ensure adequate stability and levelness, on
a floor protected from caving in. Make sure that they do not
touch each other and that they are not in direct contact with
the floor and any walls.
• Protect them from impacts, dust and from the risk of liquid or
solid deposits and make sure that nothing is placed on them.
• Do not remove the protection on the end of the pipes until
you are ready to make the hydraulic connections.
• All unused spare parts must be stored away from damp,
light, and dust, and protected from impacts.
• Gaskets and gasketed plates must be stored in appropriate
boxes at a temperature of between 10°C and 30°C. Maxi-
mum shelf-life: 12 months.
3 - INSTALLATION
Always read this guide carefully before working on the
unit and keep it in a safe place for future reference.
3.1 - Choice of location
The intended location of the unit should be fully accessible so as
to ease servicing and maintenance operations and allow easy
removal of the plates from the side of the unit (Fig. 3). Adequate
clearance must be left in front of the safety and control devices.
minimum recommended
value (mm)
Model A
DN32 700
DN50 1000
DN65 1000
DN100
1500
DN150
1500
DN200
2000
Fig. 3
A
3.2 - Installation recommendations
• CIPRIANI plate heat exchangers have a limited operating
pressure and temperature range. Install all the necessary
safety devices to prevent overrunning the limits specified
on the order documents. Approval to use the plate heat
exchangers at higher conditions must be obtained from CIP-
RIANI. It is recommended to fit pressure and temperature
test points near the unit.
• Make sure that the heat exchanger is compliant with the
safety rules in force on the site of use (explosive atmos-
phere, etc.).
• Affix appropriate visual warning sign wherever the surface
temperature above 60°C or below 0°C.
• If the heat exchanger is to be installed on framework, the

• Make the hydraulic connections as instructed on the nameplate on the frame or on
the plate arrangement drawing.
• Never insert foreign matter into the circuit.
• No strain should be placed on the pipes (weight of connected pipes, expansion,
vibrations etc.).
• If threaded couplings are used, do not apply the tightening torque to the threaded
nozzles.
• Threaded nozzles are not welded to the fixed head. To avoid damaging the first
gasket, hold the threaded nozzles in place with pliers and screw on the pipes (Fig. 4).
• If the ports on the fixed head are fitted with protective
built-in linings, the linings must be sufficiently compressed
so that the head and the counter-flange are separated by
a 2 mm gap (tightening any further will damage
the linings).
• In the case of a multi-pass heat exchanger (fluid inlet and
outlet ports on both ends): install an expansion fitting or a
horseshoe loop and use detachable pipes so that more plates
can be added and the movable follower can be removed.
Fig.4
3.4 - Insulation and protection accessories
35
structure must be designed to withstand the weight of the
exchanger when in operation (filled) and with its accessories.
• If necessary, affix the hazard symbol corresponding to the
fluid in accordance with applicable standards.
• Take all appropriate steps to mitigate the effects of any signifi-
cant human, environmental or financial consequences of failure.
• Make sure that the heat exchanger is always installed verti-
cally, stable, and secured using all its anchorage points. If
necessary, fit additional anchors suitable for the foreseeable
stresses.
• Install drains and vents, shut-off valves, and fill and drain
valves on the pipes so that the heat exchanger can be ser-
viced without disrupting the system.
• In the event of seasonal use, drain the heat exchanger com-
pletely to prevent any risk of freezing or corrosion if a cor-
rosive fluid is used.
• If accessories are installed on the heat exchanger, refer to
their specific instructions.
3.3 - Hydraulic connections
• To keep the insides of the pipes clean, do not remove the
seals on their ends until you are ready to make the hydraulic
connections.
• The insides of the pipes must be free of all foreign matter
(sand, welding slag, other solid matter, etc.) that could dam-
age the plates and gaskets.
• Filtration: If the fluids to be circulated through the heat ex-
changer contain suspended matter, a filtration system of up
to 500 µm must be installed.
• Check the tightening dimension specified on the nameplate.
Refer to section 5.7 if retightening is needed.
• Make the hydraulic connections as instructed on the name-
plate on the frame or on the plate arrangement drawing.
• Never insert foreign matter into the circuit.
• No strain should be placed on the pipes (weight of connect-
ed pipes, expansion, vibrations etc.).
• If threaded couplings are used, do not apply the tightening
torque to the threaded nozzles.
• Threaded nozzles are not weld-
ed to the fixed head. To avoid
damaging the first gasket, hold
the threaded nozzles in place
with pliers and screw on the
pipes (Fig. 4).
• If the ports on the fixed head
are fitted with protective built-in
linings, the linings must be suf-
ficiently compressed so that the
head and the counter-flange are
separated by a 2 mm gap (tightening any further will dam-
age the linings).
•
In the case of a multi-pass heat exchanger (fluid inlet and
outlet ports on both ends): install an expansion fitting or a
horseshoe loop and use detachable pipes so that more plates
can be added and the movable follower can be removed.
Fig.4
36
3.4 - Insulation and protection accessories
If necessary (e.g. residual risk of hot surface), affix the appropriate visual warning signs also on the external surface of the insula-
tion or of the protection accessory.
Plate pack protection
Drip tray
TF insulation
PB insulation
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

4 - OPERATION
4.1 - Commissioning
• Make sure that the heat exchangers do not
operate under conditions that are severer than
the design conditions (pressure, temperature, flow
rate, fluid type).
• Make sure that the tightening dimension
matches that shown on the nameplate. Never
tighten beyond this dimension.
• Open the valves slowly to avoid water
hammering and thermal shock. Sudden changes
in temperature or pressure as well as sudden
inrushes of hot fluid in a cold unit (or vice versa)
may damage the gaskets and plates and cause
leaks.
• Make sure that the heat exchanger is not
subject to vibrations or frequent short cycles.
• Purge air from the two circuits completely after
circulating the fluids. Air left inside the circuits
may cause product overheating, reduce the
exchanger’s efficiency and increase the risks of
corrosion.
4.2 - Post-commissioning tests
After running the system for one hour:
• Check for signs of leaks. Weak flow rates,
however, are normal during commissioning.
• Check the pressures and temperatures of all
the fluids being circulated.
5 - MAINTENANCE
• All maintenance operations must be carried out
by qualified, trained personnel.
• The heat exchanger may not be altered in any
way without Atlantic’s consent.
• As the maintenance intervals depend on a
multitude of parameters (fluids, temperatures,
etc.), the frequency of preventive maintenance is
left to the operator’s judgment. Nevertheless, a
maintenance inspection is recommended at least
once a year.
• Periodically check the condition of the corrosion
protection coatings and apply touch-ups as
needed.
5.1 - Preventive maintenance
• Our experience shows that, when used
under normal operating conditions, gasketed
heat exchangers have a service life of over 10
years. We advise against opening them too
often.
• Inquire about applicable environmental
standards and prevailing legislation,
particularly regarding the frequency of
checks and what to do in the event of a leak.
• Once a year, test the operation of all safety
devices, check the condition of the insulation,
look for signs of external corrosion and test
the pressure on the heat exchanger outlet.
• Record all periodic checks and problems in
the maintenance log.
Short-term storage (< 3 months)
1) Gradually lower the pressure in each circuit.
2) Turn off the pumps and close the shut-off
valves, starting with the hot circuit and then
the cold circuit.
3) Let the heat exchanger cool to room
temperature.
4) Completely drain the heat exchanger and
close the drain and vent valves.
Long-term storage (> 3 months)
Carry out the above steps as well as the
following:
1) Flush the heat exchanger circuits with water
to remove all residue.
2) Loosen the nuts on the tie bolts to reduce
the compression on the gaskets.
3) Apply a rust preventive on the tie bolts.
4) When recommissioning the heat exchanger,
lubricate the tie bolts and guide bars then go
to section 4.1.
5) Retighten the plates to the dimension
shown on the nameplate.

5.2 - Disassembly
• Breaking the special quality strap around the
heat exchanger will void the warranty. You must
obtain Atlantic’s written permission in order to
remove the strap.
• Store the plates on a flat, clean surface away
from ferrous particles and dirt.
• For easier reassembly, stack the plates in the
order of assembly or number them.
Procedure
1) Disconnect the pipes at the back of the frame
(multi-circuit units).
2) Clean and lubricate the tie-rods.
3) Measure the tightening dimension.
4) Loosen all the nuts in the order shown in
Figure 11 pull back the movable follower and
carefully remove the plates one by one so as not
to damage them. Wear protective gloves while
doing so as the edges of the plates are sharp.
5) Remove the gaskets by lifting the tabs out of
their slots on the edges of the plates.
6) Clean the heat exchanger.
• Separate the plates with care, paying particular
attention to the fastening of the Plug-In®
gaskets; the gaskets tend to stick to the plates
after a period of prolonged operation at high
temperatures. Gaskets that retain their original
properties may be reused.
• Never mix new and old gaskets as
the difference in elasticity will result in
overcompression of the new gaskets and reduce
their service life.
39
NUTS & BOLTS SIZE DN 32 DN 50 DN 65 (**) DN 100 DN 150 DN 200
Model S020+ S040+ S080+ S070+ S160+ S260+ S125+ S180+ S300+ S450+ S700+ S400+ S600+ S900+ S650+ S990+
PS6 frame tightening bolts (1) M12 M16 -M16 M20 - - - -
Spanner size 19 24 -24 30 - - - -
PS10 frame tightening bolts (1) M14 M20 M20 M24 / M33 M24 / M33 M33 / M39 M33
Spanner size 22 30 30 36 / 50 36 / 50 50 / 60 50
PS16 frame tightening bolts (1) M14 M16 M20 M20 -M24 / M33 M24 / M33 M33 / M39 M33
Spanner size 22 24 30 30 -36 / 50 36 / 50 50 / 60 50
PS25 frame tightening bolts (1) M16 M20 - - M24 / M33 - - - -
Spanner size 24 30 - - 36 / 50 - - - -
Carrying bars frame plate (2) / pressure plate (3) M12 M16 M20 M18 M20 M20
Spanner size 19 24 (*) 30 27 30 30
Guiding bars frame plate (4) / pressure plate (5) M12 M16 M20 / M16 M18 M20 M20
Spanner size 19 24 (*) 30 / 24 27 30 30
Feet (6) M10 M16 M16 M16 M16 M16
Spanner size 17 24 24 24 24 30
(*) FRAME WITH FLANGED CONNECTIONS
14 Allen key
(**) FRAME WITHOUT LATERAL EXTREACTION
(up to beginning 2012)
Carrying bars (2) and (3):
S125+ M22 / S180+ M20
Spanner size:
S125+ 32 / S180+ 30
Guiding bars (4) and (5):
S125+ M22 / S180+ M20
Spanner size:
S125+ 32 / S180+ 30
Feet
Tightening bolts
Guiding bar
Carrying bar (2)
(3)
(5)
(1)
(4)
(6)
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

5.3 - Manual cleaning
• Always wear safety glasses and protective
gloves and follow the instructions for the
cleaning products used.
• Dispose of wastewater in accordance with
prevailing environmental protection regulations.
• Never use metal tools, abrasives, or
corrosives.
• Use a soft, non-metallic brush and suitable
detergent.
• A pressure washer may be used provided
the necessary precautions are taken to avoid
damaging the gaskets.
• Soak the plates in a detergent solution if they
are coated with thick deposits.
• Thoroughly rinse the plates, and especially
the gaskets, in cold or lukewarm water.
• Degrease the plates before reinstalling them,
especially if one of the fluids circulated is a
lubricant (e.g. oil).
• Carefully check the condition and sealing
surfaces of the gaskets, the flatness of the
plates, and the overall cleanliness.
5.4 - Clean in place (CIP)
• CIP is recommended if the heat exchanger
requires frequent cleaning or is hard to
disassemble.
• CIP can be performed provided it is
impossible for particles to build up inside the
heat exchanger. Likewise, if there is a
risk of the surfaces of the plates being
damaged by particles, manual cleaning should
be performed.
• The CIP procedure must be determined with a
specialised firm when the system is designed.
• After the first few cleanings, it may be
necessary to open the heat exchanger in order
to check the degree of cleanliness, adjust the
cycle time and determine the best product
concentrations.
Procedure
1) Completely drain all the circuits (if this is not
possible, run fresh water through the circuits
until the process fluids have been completely
flushed out).
2) Clean with fresh water (with a low chloride
content for the stainless steel plates) at a
temperature of around 40°C to eliminate all
traces of the process fluids. Run this water in
the opposite direction of normal operation. An
even better result can be obtained by running
the water alternately in one direction and then
the other (this is advised for steam applications
or to eliminate residues such as fibres and
particles). The use of filters upstream of the heat
exchanger will reduce the need for this.
3) Completely drain the water from the circuits
and connect the CIP unit. Do not let the solution
sit in the exchanger.
4) For even better cleaning, use a centrifugal
pump installed between the CIP and the heat
exchanger. Circulate the detergent solution in
the direction opposite that of the fluids so as to
eliminate all traces of dirt.
5) Circulate a quantity of detergent solution
at above the nominal mflow rate but without
exceeding the maximum allowable flow rate
(determined by the nominal diameter).
6) Thoroughly flush both circuits with fresh water.
5.5 - Detergents
• Never use hydrochloric acid (HCl) or
chlorinated compounds with stainless steel.
• Never use phosphoric acid with titanium.
• Suitable detergents may be obtained from
specialised firms. Specify the plate and gasket
types to obtain a detergent that will not remove
the protective oxide layer on the plates or
destroy the gaskets.
• Nitric acid (HNO3) and sodium hydroxide
(NaOH) may be used to clean stainless steel
and titanium plates.
• Polyphosphates may also be used.

Descaling
• Use a nitric acid (HNO3) or citric acid
solution: 1.5% concentration by weight, max.
temperature 65°C (1.5% by weight corresponds
to 1.75 l of 62% HNO3 for 100 litres of water) or
a polyphosphate solution (NaPO4 or Na3PO4):
1.5% max. concentration by weight, max.
temperature 50°C.
Degreasing
• Degrease stainless steel or titanium plates
with a sodium hydroxide (NaOH) solution: 1.5%
max. concentration by weight, max. temperature
65°C (1.5% by weight corresponds to 3.75 l of
30% NaOH for 100 litres of water).
• Do not use hydrochloric acid or water with
a chloride content of over 300 ppm to clean
stainless steel plates.
• Do not use phosphoric acid to clean titanium
plates.
Deposits:
Calcium
Recommended detergents: 4% nitric acid
solution at 60°C max. - 4% citric acid solution at
60°C max.
Oils and greases
Recommended detergents: paraffin or kerosene
(as these fluids may damage NBR and EPDM
gaskets, limit the contact time to no more than
30 minutes)
Sludges, metal oxides
Recommended detergents: 8% nitric acid
solution at 60°C max. - 4% citric acid solution at
60°C max.
Organic matter
Recommended detergents: 2% sodium hydroxide
solution at 40°C max.
5.6 - Liquid penetrant testing
• Corrosion, galvanic coupling and erosion
can create holes in the plates. As such damage
is not always visible to the naked eye, we
recommend performing liquid Atlantic tests
to check for holes or microcracks. Atlantic
technical support team can advise you on the
appropriate products.
5.7 - Gasket replacement
• Before starting, check the manufacturing date
of the gaskets, printed on the relevant date stamp
(Fig.5). Please note that the gaskets must not be
stored for more than 6-12 months (see chapter 2 -
STORAGE).
• Remove the old gasket without using cutting tools,
which could irreparably damage the plate.
• Make sure that the plate and gasket are
thoroughly clean and dry alongside the gasket slot.
5.7.1 - Plug-In® Design gaskets
• Press the gasket onto the plate (Fig. 6), making
sure that the leak detector vents, “A”, are facing up
and check that the Plug-In® tabs are hooked into
their respective notches (Fig.7). Make sure that the
gasket is properly seated in its notch, then turn the
plate over to check again that all the Plug-In® tabs
are correctly in place.
5.7.2 - Plug-In® Design gaskets which
may require the use of glue
• Plug-In® Design gaskets, for initial plates,
intermediate turning plates (for multi-pass heat
exchangers only) and final plates, may require
a limited use of glue. These types of plates,
complete with gaskets mounted at the factory, can
be supplied as spare parts. Alternatively, for the
substruction
of the gaskets, proceed as described below.
A: Leak detector vents are notches in the surfaces of
the gasket sections around the portholes which vent
any leaks to the atmosphere so that they can be
detected.
42
5.7 - Gasket replacement
• Before starting, check the manufacturing date of the gas-
kets, printed on the relevant date stamp (Fig.5). Please note
that the gaskets must not be stored for more than 6-12
months (see chapter 2 - STORAGE).
• Remove the old gasket without using cut-
ting tools, which could irreparably dam-
age the plate.
• Make sure that the plate and gasket are
thoroughly clean and dry alongside the
gasket slot.
5.7.1 - Plug-In® Design gaskets
• Press the gasket onto the plate (Fig. 6), making sure that
the leak detector vents, "A", are facing up and check that
the Plug-In® tabs are hooked into their respective notches
(Fig.7). Make sure that the gasket is properly seated in its
notch, then turn the plate over to check again that all the
Plug-In® tabs are correctly in place.
5.7.2 - Plug-In® Design gaskets which may require the use
of glue
• Plug-In® Design gaskets, for initial plates, intermediate turn-
ing plates (for multi-pass heat exchangers only) and final
plates, may require a limited use of glue. These types of
plates, complete with gaskets mounted at the factory, can
be supplied as spare parts. Alternatively, for the substruc-
tion of the gaskets, proceed as described below.
A: Leak detector vents
are notches in the
surfaces of the gasket
sections around the
portholes which
vent any leaks to the
atmosphere so that
they can be detected.
Fig.7
Fig.6
Initial plate
Cut two gaskets along the vertical axis and use the two parts
with sealing rings inside the holes (Fig.8) to form a complete
initial gasket. Discard the other two halves.
Fig.5
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

42
5.7 - Gasket replacement
• Before starting, check the manufacturing date of the gas-
kets, printed on the relevant date stamp (Fig.5). Please note
that the gaskets must not be stored for more than 6-12
months (see chapter 2 - STORAGE).
• Remove the old gasket without using cut-
ting tools, which could irreparably dam-
age the plate.
• Make sure that the plate and gasket are
thoroughly clean and dry alongside the
gasket slot.
5.7.1 - Plug-In® Design gaskets
• Press the gasket onto the plate (Fig. 6), making sure that
the leak detector vents, "A", are facing up and check that
the Plug-In® tabs are hooked into their respective notches
(Fig.7). Make sure that the gasket is properly seated in its
notch, then turn the plate over to check again that all the
Plug-In® tabs are correctly in place.
5.7.2 - Plug-In® Design gaskets which may require the use
of glue
• Plug-In® Design gaskets, for initial plates, intermediate turn-
ing plates (for multi-pass heat exchangers only) and final
plates, may require a limited use of glue. These types of
plates, complete with gaskets mounted at the factory, can
be supplied as spare parts. Alternatively, for the substruc-
tion of the gaskets, proceed as described below.
A: Leak detector vents
are notches in the
surfaces of the gasket
sections around the
portholes which
vent any leaks to the
atmosphere so that
they can be detected.
Fig.7
Fig.6
Initial plate
Cut two gaskets along the vertical axis and use the two parts
with sealing rings inside the holes (Fig.8) to form a complete
initial gasket. Discard the other two halves.
Fig.5
• The half of the gasket for which it is possible
to correctly place all Plug-In® tabs in their
corresponding notches, can be mounted as
described in 5.7.1.
• On the other half, use shears to remove all the
Plug-In® tabs and, if present, all the connecting
bridges between the diagonal and the sealing ring
(Fig.9 b).So, following the procedure described in
point 5.7.3, attach the gasket, excluding the sealing
rings.
Intermediate turning plate
(for multi-pass heat exchangers only) and end plate
1. Models equipped with Plug-In® tabs inside the
sealing rings: using shears, cut the Plug-In® tabs
inside the sealing rings (Fig. 9 c) corresponding to
the closed holes only. Then, following the procedure
described in point 5.7.3, attach only the connecting
bridges between the diagonal and the ring.
2. Models without Plug-In® tabs inside the sealing
rings: no cutting is necessary; proceed as described
in point 5.7.1.
NOTE: On some models it might be necessary to
remove all the Plug-In® tabs (not only those inside
the sealing rings). In this case, if permitted, remove
the entire gasket.
43
Fig.8
Fig.9
• The half of the gasket for which it is possible to correctly
place all Plug-In® tabs in their corresponding notches, can
be mounted as described in 5.7.1.
• On the other half, use shears to remove all the Plug-In®
tabs and, if present, all the connecting bridges between the
diagonal and the sealing ring (Fig.9 b).So, following the pro-
cedure described in point 5.7.3, attach the gasket, exclud-
ing the sealing rings.
Intermediate turning plate
(for multi-pass heat exchangers only) and end plate
1. Models equipped with Plug-In® tabs inside the sealing rings:
using shears, cut the Plug-In® tabs inside the sealing rings
(Fig. 9 c) corresponding to the closed holes only. Then, fol-
lowing the procedure described in point 5.7.3, attach only
the connecting bridges between the diagonal and the ring.
2. Models without Plug-In® tabs inside the sealing rings: no
cutting is necessary; proceed as described in point 5.7.1.
NOTE: On some models it might be necessary to remove all
the Plug-In® tabs (not only those inside the sealing rings). In
this case, if permitted, remove the entire gasket.
NOTE: For the DN200 models it is recommended, if permit-
ted, to attach the entire gasket.
5.7.3 - Gluing
• Using the appropriate epoxy glue (supplied as a spare part,
on request), spread a strip of glue (2-3 mm) onto the plate
in the gasket slot.
• Leave to dry for 5 minutes in a suitably ventilated room,
then position the gasket on the plate, making sure that it is
perfectly contained in the slot and that there is no excess
glue escaping from the slot.
• Place a counterweight on the glued plates (without defor-
ming the plastic), ensuring that the whole gasket is evenly
compressed for at least 2 hours.
NOTE: For the DN200 models it is recommended, if
permitted, to attach the entire gasket.
5.7.3 - Gluing
• Using the appropriate epoxy glue (supplied as a
spare part, on request), spread a strip of glue (2-3 mm)
onto the plate in the gasket slot.
• Leave to dry for 5 minutes in a suitably ventilated
room, then position the gasket on the plate, making
sure that it is perfectly contained in the slot and that
there is no excess glue escaping from the slot.
• Place a counterweight on the glued plates (without
deforming the plastic), ensuring that the whole gasket is
evenly compressed for at least 2 hours.
N.B. Some particular standards (e.g. ACS Attestation
de Conformité Sanitaire) may prohibit direct contact
between fluid and glue. If this is the case, do not glue
the parts of the gasket which could come into direct
contact with the fluid.
WARNING: Always follow the mandatory general
standards for personal protection, in particular: avoid
contact with the eyes, use an appropriate protective
mask to protect against inhalation hazards and wear
gloves.
Initial plate
Cut two gaskets along the vertical axis and use the
two parts with sealing rings inside the holes (Fig.8) to
form a complete initial gasket. Discard the other two
halves.

5.8 - Reassembly
• Before reassembling the heat exchanger,
make sure that all the plates and gaskets are
clean and free of grease.
• When arranged correctly, the stacked plates
form a honeycomb pattern (Fig.10).
• The order of assembly and the plate
direction are specified on the plate
arrangement drawing
.
Procedure
• Starting from the frame plate, assemble the
plates on the bar one by one with the gaskets
facing the frame plate.
• Clean and lubricate the tie-rods, position
them on the frame, then tighten the nuts
gradually and evenly in the order indicated in
Fig. 11 until the correct dimension is obtained
between the plates (tightening dimension),
as specified on the nameplate. Check that
this dimension is the same on each side.
Overtightening may irreversibly distort the
plates. If you feel it is necessary to tighten
beyond the recommended dimension,contact
Atlantic to obtain advice.
• It is recommended to perform a pressure
test after all maintenance on the plates and
gaskets in order to check the heat exchanger’s
internal and external tightness. The maximum
pressure for each circuit should be equal to the
operating pressure and should never exceed
the rated pressure
(PS) specified on the nameplate. The
recommended testing time is at least 10
minutes. Nevertheless, it remains the user’s
responsibility to check national standards and
local codes affecting such a test. If different test
conditions are
required, please note that the heat exchangers
should never be tested at pressures greater than
the test pressure (PT) specified on the nameplate
and that the pressure diffeences between the two
circuits during testing should never
be higher than the maximum allowable
differential pressure.
• If a leak occurs, lower the pressure then
retighten the nuts and repeat the test. If the leak
persists, check the gaskets and plates for signs of
wear, damage or dirt. If necessary, replace the
gaskets.
44
N.B. Some particular standards (e.g. ACS Attestation de Con-
formité Sanitaire) may prohibit direct contact between fluid
and glue. If this is the case, do not glue the parts of the ga-
sket which could come into direct contact with the fluid.
WARNING: Always follow the mandatory general standards
for personal protection, in particular: avoid contact with the
eyes, use an appropriate protective mask to protect against
inhalation hazards and wear gloves.
5.8 - Reassembly
• Before reassembling the heat exchanger, make sure that all
the plates and gaskets are clean and free of grease.
• When arranged correctly, the stacked plates form a ho-
neycomb pattern (Fig.10).
• The order of assembly and the plate direction are specified
on the plate arrangement drawing.
Procedure
• Starting from the frame plate, assemble the plates on the
bar one by one with the gaskets facing the frame plate.
• Clean and lubricate the tie-rods, position them on the fra-
me, then tighten the nuts gradually and evenly in the order
indicated in Fig. 11 until the correct dimension is obtained
between the plates (tightening dimension), as specified on
the nameplate. Check that this dimension is the same on
each side. Overtightening may irreversibly distort the plates.
If you feel it is necessary to tighten beyond the recommen-
ded dimension,contact CIPRIANI’s After-Sales Department
to obtain advice.
• It is recommended to perform a pressure test after all main-
tenance on the plates and gaskets in order to check the
heat exchanger’s internal and external tightness. The maxi-
mum pressure for each circuit should be equal to the ope-
rating pressure and should never exceed the rated pressure
(PS) specified on the nameplate. The recommended testing
time is at least 10 minutes. Nevertheless, it remains the
user's responsibility to check national standards and local
codes affecting such a test. If different test conditions are
required, please note that the heat exchangers should ne-
ver be tested at pressures greater than the test pressure
(PT) specified on the nameplate and that the pressure diffe-
Fig.10 Fig.11
45
rences between the two circuits during testing should never
be higher than the maximum allowable differential pressure.
• If a leak occurs, lower the pressure then retighten the nuts
and repeat the test. If the leak persists, check the gaskets
and plates for signs of wear, damage or dirt. If necessary,
replace the gaskets.
5.9 - Plate types
DESCRIPTION
CODE
ODD
INITIAL
1234 1234 1234 0
ODD
FINAL
EVEN
INTERMEDIATE
PARALLEL
FLOW
ODD
INTERMEDIATE
PORT HOLES
POSITION
PORT HOLES POSITION FOR DEVIATION PLATE
PASSING
HOLES
BLIND
HOLES
1,3,41,2,4 1,2,3 2,3,4 1,4 2,3 3 3
Drilling the collectors. Code which indicates the position and the open or
closed status of the collectors.
1234 = Open 0 = Closed
e.g.: 1204: indicates that porthole No. 3 is closed.
B
A
The letter indicates the plate type:
A = HIGH EFFICIENCY plate with wide chevron pattern
B = LOW DELTA P plate with narrow chevron pattern
PORT HOLES FOR PLATES ON SINGLE-PASS UNITS
PORT HOLES POSITION FOR DEVIATION PLATE
45
rences between the two circuits during testing should never
be higher than the maximum allowable differential pressure.
• If a leak occurs, lower the pressure then retighten the nuts
and repeat the test. If the leak persists, check the gaskets
and plates for signs of wear, damage or dirt. If necessary,
replace the gaskets.
5.9 - Plate types
DESCRIPTION
CODE
ODD
INITIAL
1234 1234 1234 0
ODD
FINAL
EVEN
INTERMEDIATE
PARALLEL
FLOW
ODD
INTERMEDIATE
PORT HOLES
POSITION
PORT HOLES POSITION FOR DEVIATION PLATE
PASSING
HOLES
BLIND
HOLES
1,3,41,2,4 1,2,3 2,3,4 1,4 2,3 3 3
Drilling the collectors. Code which indicates the position and the open or
closed status of the collectors.
1234 = Open 0 = Closed
e.g.: 1204: indicates that porthole No. 3 is closed.
B
A
The letter indicates the plate type:
A = HIGH EFFICIENCY plate with wide chevron pattern
B = LOW DELTA P plate with narrow chevron pattern
PORT HOLES FOR PLATES ON SINGLE-PASS UNITS
PORT HOLES POSITION FOR DEVIATION PLATE
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

46
5.10 - Arrangement examples
Legend:
1: Frame plate 4: End plate
2: Pressure plate 5: Intermediate plates
3: Initial plate 6: Turning plate
F4
F1
F3
F2
A A A A AB B
A B A A AB B
A B A B AB B
F4
F1
F3
F2
F4
F1
F3
F2
F4
F1
B4
B1
F4
F1
F3
F2
F4
F1
F3
F2
A A A A AB B
A B A A AB B
A B A B AB B
F4
F1
F3
F2
F4
F1
F3
F2
F4
F1
B4
B1
F4
F1
F3
F2
Single-pass/Single-pass arrangement (1-1)
Two-pass/Two-pass arrangement (2-2)
2
4
53
1
1
2
53 5 4
6
47
F4
F1
F3
F2
A A A A AB B
A B A A AB B
A B A B AB B
F4
F1
F3
F2
F4
F1
F3
F2
F4
F1
B4
B1
F4
F1
F3
F2
Mixed plate pack - High performance plate > 50%
F4
F1
F3
F2
A A A A AB B
A B A A AB B
A B A B AB B
F4
F1
F3
F2
F4
F1
F3
F2
F4
F1
B4
B1
F4
F1
F3
F2
F4
F1
F3
F2
A A A A AB B
A B A A AB B
A B A B AB B
F4
F1
F3
F2
F4
F1
F3
F2
F4
F1
B4
B1
F4
F1
F3
F2
Mixed plate pack - High performance plate = 50%
Mixed plate pack - High performance plate < 50%

5.11 - Increasing the transfer area
It is possible to add an even number of extra
plates to an existing heat exchanger, provided
you:
• Check the maximum plate capacity of the heat
exchanger.
• If the length is insufficient, provide new
carrying bars and threaded rods.
• Replace the nameplate and the plate
arrangement drawing
with the new ones provided by CIPRIANI.
• Leaks often occur when plates with new
gaskets and plates with old gaskets are used
together (due to difference in toughness).
We therefore strongly recommend replacing all
worn gaskets with new ones.
5.12 - Spare plates
Plates may be replaced individually or
altogether. In this last case, however, it is
recommended to replace all the gaskets (see the
previous section).
• If only a few plates are replaced, indicate the
sequence of the plates to be replaced shown on
the plate arrangement drawing.
5.13 - Troubleshooting
FLUID LEAKS BETWEEN PLATE
PACK AND FRAME
PROBLEM
Leak detected at the bottom of the pack.
POSSIBLE SOLUTIONS
° Make sure that all the bolts are correctly
tightened.
° Make sure that there is no mechanical stress on
any of the connections.
° Reposition or replace the gasket on the initial
or end plate.
° Check the internal surface of the fixed head for
defects.
° Make sure that there are no foreign bodies
between the initial plate and the fixed head.
° Test the initial/end plate for signs of damage
(cracks, holes).
FLUID LEAKS BETWEEN
CONNECTIONS AND FRAME
PROBLEM
Fluid leaks where a connection passes through
the fixed head.
POSSIBLE SOLUTIONS
° If welded connections are used, check the
condition of the welds.
° If cracks are found, contact your Atlantic
consultant before attempting any repairs.
° If other connections are used, contact your
Atlantic consultant.
FLUID LEAKS FROM THE PLATE
PACK PROBLEM
Leak detected from plate pack.
POSSIBLE SOLUTIONS
° Measure the tightening dimension and check it
against the nameplate. Tighten if need be.
° Mark the area around the leak with a felt-tip
pen then open the heat exchanger and inspect
the area.
° Check the sequence and alignment of the
plates.
° Check the condition of the gaskets (correct
position, overall condition, elasticity). Reposition
or replace the gaskets as needed.
I
INTERNAL LEAKS WITH mixing of
fluids
Contact Atlantic as quickly as possible.
PROBLEM
The fluids in the heat exchanger are mixing
together at the unit’s outlet.
POSSIBLE SOLUTIONS
° Make sure that the hydraulic connections are
correct.
° Disassemble the heat exchanger and inspect
the entire surface of each plate for cracks and
holes with penetrant. Replace any
damaged plates.
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com

INCREASED PRESSURE DROPS
PROBLEM
The pressure drop is higher than the design value.
POSSIBLE SOLUTIONS
° Check the accuracy of the measuring instruments
used.
° Test the operation of the pumps.
° Fouling may be the cause. Clean the heat
exchanger.
° Circulate the fluids in the opposite direction to
remove any blockages in the pipes.
VARIATIONS IN TEMPERATURE
PROBLEM
The heat exchanger’s outlet temperatures do not
correspond to the expected temperatures.
POSSIBLE SOLUTIONS
° Check the accuracy of the measuring instruments
used.
° Fouling may be restricting the flow along the
channels and reducing the heat transfer capacity
(drop in efficiency). Clean the heat exchanger.
6 - DISPOSAL
• Disconnect the heat exchanger from its power
sources and wait until it has cooled fully.
• Drain the heat exchanger and collect the fluids in
accordance with environmental standards.
• Dispose of the gaskets in accordance with the
prevailing legislation.
• Use the lifting systems employed when installing
the heat exchanger.
• Check whether any part of the heat exchanger
may be recycled for another purpose.
Materials:
Consult the documentation provided with the order
for information on the materials used to fabricate
the heat exchanger.
• Plates: stainless steel or titanium.
• Other metal components: carbon steel or
stainless steel.
• Gaskets: NBR, EPDM, FPM, HNBR.
Insulation or plate protection materials: stainless
steel + ceramic or aluminium + polyurethane boards
or cross-linked polyethylene.
ATLANTIC BOILERS, PO BOX 11, ASHTON UNDER LYNE, OL6 7TR T: 0161 621 5960 E: [email protected] www.atlanticboilers.com