XPOtool 50671 User manual

Operation Manual
Plate Heat Exchanger
50671–50673, 50675–50687
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps, and technical data can differ insignificantly.
Updating the documentation
If you have suggestions for improvement or have found any irregularities, please contact us.

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The information contained in this document may alter at any time without previous notice. It is prohibited
to copy or spread any parts of this document in any way without prior written allowance. All rights re-
served.
The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this
operating manual, nor in the diagrams and figures shown.
Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure
that the operating manual is complete, faultless, and up to date, mistakes cannot be entirely avoided.
If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing
from you.
Send an e-mail to:
[email protected]
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in various languages can be found in our online shop via:
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Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler
Germany
To return orders for exchange, repair, or other purposes, please use the following address. Attention!
To allow for a smooth execution of your complaint or return, it is important to contact our customer
service team before returning the goods.
Returns Department
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
E-mail: [e-mail]
Tel: [phone]
Fax: [phone]

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Introduction
Thank you for purchasing this quality product. To minimise the risk of injury we urge that our clients
take some basic safety precautions when using this device. Please read the operation instruc-
tions carefully and make sure you have understood its content.
Keep these operation instructions safe.
A plate heat exchanger is a form of heat exchanger, also called heat carriers. The term is appropriate
because during the process no heat exchange is taking place, but a heat transfer from one medium to
another one.
As suggested by its name, the plate heat exchanger consists of wave-shaped panels that are assembled
in a unique way. There are interspaces between the plates. These interspaces are flown alternately by
the heat-absorbing and the heat-dissipating medium. The device is sealed both towards the outside and
beneath the mediums which is done by different ways. For example, there are screwed plate heat ex-
changers that dispose of a variety of advantages. They are expandable for example and conduct the
flow in different ways.
As for the construction, there are different types of plate heat exchangers. It is the so-called soldered
plate heat exchangers that are preferred being characterized by the fact that the different plates are
soldered with each other. By this means, you can renounce any other assembly.
Plate heat exchangers work efficiently because they ensure a strong heat transfer which can even be
increased by generating turbulences during the process of flowing through. The turbulent flow-through
is done by the corrugated profile of the plates. Albeit plate heat exchangers need not necessarily be
large, they are efficient by providing for a large heat flux density. Plate heat exchangers are components
that dispose of a high-power density. Thanks to compact dimensions and low weight, they are highly
efficient.
Soldered plate heat exchangers consist of embossed stainless-steel plates being soldered with copper
using a vacuum procedure. When being assembled, each second plate is rotated by 180°, thus forming
two separately rotated flow chambers by the means of which the mediums being involved in the heat
transfer are conducted in counter flow. The embossing of the plates generates a highly turbulent flow-
through, thus providing for an effective heat transfer even in low volume flows. Due to said highly turbu-
lent flow-through even at low speed, a self-cleaning process is caused which essentially reduces the
danger of calcification and contamination.

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It is not only used in the field of industrial heating technology but also in cooling and solar technology.
Other fields of application
•Combined Heat and Power
•Air conditioning systems
•Heating pumps
•Floor heating
•Thermal power station
•Heat extraction
•Air heating
•Air conditioning in buildings
•Food industry
•Refrigeration and air-conditioning systems
•Heating of domestic waters
•Heating of supply networks
•Solar thermal systems
•Frost-endangered heating systems
•Heating of regenerative fuels
•Heat recovery systems
•Vegetable oil conversion for cars and trucks
•System division for underfloor heating
•Chemical and pharmaceutical production process
•Transfer stations in district heating supply network
Installation
Plate heat exchangers should be assembled in a way that there is sufficient space to perform mainte-
nance. The position for installation should be selected so that the plate heat exchanger can be ventilated
and emptied. The minimum distance for the mounting on the thermal insulation is 40 mm. As for heat-
technical applications, a vertical mounting position is most effective. Any other position for installation
could lead to power loss.
Refrigeration applications such as evaporator or condenser systems always require vertical installation.
Never assemble the heat exchanger with the connections in a downwards position. The heat exchanger
should be preventively mounted on a console. A support only on the ports is not sufficient. Make sure
that there are no vibrations and/or pulsations affecting the heat exchanger.
If necessary, you install expansion joints to ensure that there are no forces acting directly on the ports.
Connection to the pipe network
A – Primary side heating technology: primary in / out
B – Primary side refrigeration: refrigerant in / out
Heat exchangers are connected in reverse flow. The system needs to be rinsed before installing the
heat exchanger.
ATTENTION: Pipelines should be routed the way that movements inside the pipes or improper
forces to not act on the plate heat exchanger!

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Number
Name
Letter
Name
1
In
A
Primary
2
Out
B
Secondary
Note!
•Before commissioning it is necessary to compare the operating data with the manufacturer’s
indications with regard to their agreement. Moreover, all screw connections must be checked.
•The pumps providing the plate heat exchanger must be equipped with shut-off valves. The
pumps must not suck in air to exclude possible malfunctions caused by strokes of water.
•During the filling of the system, the plate heat exchanger must be ventilated to achieve fully
performance.
•For prolonged deadlock of the system, the heat exchanger must be completely emptied and
cleaned. This holds especially true for danger of frost, aggressive media and media tending to
biological fouling.
•After start up, you must check that there are no pressure pulsations. In case the heat exchanger
is mounted between a control valve and a differential pressure regulator, it must be ensured
that in case of simultaneous closing of the two regulatory entities there is no vacuum pressure.
This is to prevent any steam impacts.
•Generally, it must be ensured that there are no operating conditions being in contradiction to
this assembly, operation, and maintenance manual.
•The formation of ice causes the destruction of the heat exchanger. At temperatures close to
freezing point, it is recommended to use antifreeze agents (e.g., glycol).
•There are many different factors that may influence the fouling and contamination. These are
for example: speed, temperature, turbulences, distribution, and quality of water. As for the use
of media which may be contaminated such as surface waters, cooling circulation water (open
circulation), heating water and the like, it is advisable to install filters on the plate heat exchanger
thus minimizing the danger of contamination.
•The media must be effected with a maximum of mass flow. Low mass flows (partial load) the
turbulence inside the heat exchanger can be affected thus increasing the tendency for contam-
ination.
•With temperatures above 60 ℃ (140 ℉), there can be lime sediments on the surface of the heat
exchanger. A turbulent flow-through and lower temperatures reduce the risk of calcification.
•During the process of shutdown, it must be ensured that first the primary side and thereafter the
secondary side is closed. When starting the system, it is the secondary side first to be opened
and then the secondary one. By this means, overheating of the heat exchanger is excluded.

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•In case you expect the formation of sediments due to poor water quality (e.g., extensive values
of hardness or high contamination), there should be a purification at regular intervals. There is
the possibility of cleaning by flushing.
•The heat exchanger is to be flushed against the normal direction of flow with a suitable cleaning
solution.
Attention!
•Poor water quality causes an increased susceptibility to corrosion.
•The regular maintenance as well as the compliance with all regulations concerning the water
quality reduces the risk of fouling. Fouling increases the susceptibility of corrosion.
Technical specifications
50671
50672
50673
50675
50676
Panels
Thickness conductive panel (㎜)
0.26
Thickness cover panel (㎜)
1.0
Distance (㎜)
2.1
Size (㎜)
191×73
Number
10
20
30
50
60
Temperature range (℃)
-195–+225
Capacity (ℓ)
0.18
0.36
0.54
0.90
1.08
Operational pressure (㍴)
20
Max. flow rate (ℓ⁄min)
ca. 67
Max. power (kW)
22
44
66
90
130
Connectors (㎜)
F1, F3
12.7 (½″)
F2, F4
19.05 (¾″)
Effective exchange surface (㎡)
ab. 0.12
ab. 0.24
ab. 0.36
ab. 0.60
ab. 0.72
Material
Stainless steel, copper
Circulation
F1 → F3 / F4 → F2
50677
50678
50679
50680
50681
Panels
Thickness conductive panel (㎜)
0.26
0.4
Thickness cover panel (㎜)
1.0
2.0
Distance (㎜)
2.1
2.1
Size (㎜)
315×73
286×116
Number
30
40
50
20
30
Temperature range (℃)
-195–+225
Capacity (ℓ)
1.2
1.6
2.0
1.0
1.5
Operational pressure (㍴)
20
30
Max. flow rate (ℓ⁄min)
ab. 67
ab. 200
Max. power (kW)
125
165
210
115
175

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Connectors (㎜)
F1, F3
12.7 (½″)
25.4 (1″)
F2, F4
25.4 (1″)
Effective exchange surface (㎡)
ab. 0,69
ab. 0.92
ab. 1.15
ab. 0.64
ab. 0.96
Material
Stainless steel, copper
Circulation
F1 → F3 / F4 → F2
50682
50683
50684
50685
50686
50687
Panels
Thickness conductive panel (㎜)
0.4
Thickness cover panel (㎜)
2.0
Distance (㎜)
2.1
Size (㎜)
286×116
529×124
Number
40
50
30
40
50
60
Temperature range (℃)
-195–+225
Capacity (ℓ)
2.0
2.5
3.33
4.44
5.55
6.66
Operational pressure (㍴)
30
Max. flow rate (ℓ⁄min)
ab. 200
ab. 367
Max. power (kW)
230
285
330
440
550
660
Connectors (㎜)
F1, F3
25.4 (1″)
F2, F4
Effective exchange surface (㎡)
ab. 1.28
ab. 1.60
ab. 1.80
ab. 2.4
ab. 3.0
ab. 3.6
Material
Stainless steel, copper
Circulation
F1 → F3 / F4 → F2
Important notice:
The reprint or reproduction, even of excerpts, and any commercial use, even in part, of this instruction
manual require the written permission of WilTec Wildanger Technik GmbH.