VEXO X-POT XP+ Manual

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X-POT XP+®O&M Manual
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OPERATION &
MAINTENANCE MANUAL
®

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Content
1. Safe Working Distance Statement
2. Liability
3. Warranty
4. Copyright
5. General Safety Instructions
6. Electrical Warning Symbol
7. Purpose & Use of this Manual
8. Qualications Required, Assumption
9. Appropriate Use
10. Supplied Goods
11. Transportation, Storage, Unpacking
12. Emergency Stop / Emergency Off
13. Personal Protective Equipment
14. Exceeding Permitted Pressure and/or Temperature Levels
15. Safeguards
16. External Forces
17. Electrical Equipment Inspections
18. Maintenance & Repair
19. Obvious Misuse
20. Product Description
21. Technical Data
22. Schematics & Component List
23. Operating Principles
24. Markings
25. Basic Installation Requirements
26. Critical Installation Requirements
27. Commissioning
28. Control Panel VEXO X-POT XP+
29. Monitoring & Parameters
30. Pump Conguration
31. Pump Connection Table
32. Signal Cables
33. Setup Guide
34. Grundfos Pump Conguration
35. Grundfos Eye
36. Filter Maintenance
37. Disassembly for Filter Replacement
38. To Clean & Replace the Filters
39. Dosing & Water Treatment Additives
40. To Manually Dose the System with Water Treatment Additives
41. Bolt Tightening Notes
42. Electrical Checks & Inspection
43. Decommissioning & Dismantling
44. General Assembly Drawing VEXO X-POT XP+
45. General Access Drawing VEXO X-POT XP+
46. Declaration of Conformity
47. Service History
Page 03
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Page 71
WARNING – This equipment must only be used,
maintained or serviced by trained competent engineers.
If in any doubt please do not touch this equipment. For
further advice please contact VEXO International or
your reseller for additional information and guidance.
!
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®

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Liability
All technical information, data and information contained herein are correct at time of publication. This
information is the sum of our current ndings and experience to the best of our knowledge. We reserve the right
to make technical changes subject to the future development of the VEXO®product referred to in this publication.
Hence no rights may be derived from technical data, descriptions and illustrations. Technical pictures, drawings
and graphs do not necessarily correspond to the actual assemblies or parts as delivered. Drawings and pictures
are not to scale and may contain symbols for simplication.
Warranty
Active Period: 24 months from the date of commissioning.
This warranty covers manufacturing defects only.
Please note that removal of the identication data labels from the equipment will render the manufacturing
warranty null and void.
If the unit is identied with a manufacturing defect then no charge is made for correcting the defect.
The warranty is conditional upon the following clauses:
1. The equipment must be commissioned by a trained, competent engineer or qualied person, who can verify
the integrity of the equipment at that time. The qualied person must conrm in writing that the equipment is
undamaged as a result of transportation and installation and is t to begin the warranty period.
2. Photographic evidence must be collected at the time of commissioning to verify the condition of the
equipment at that time.
3. The equipment must be serviced at least annually, by a trained competent engineer or qualied person.
4. This warranty covers the equipment against manufacturing defects, normal wear and tear is not covered by
this agreement and should form part of a separate service agreement.
5. It may be anticipated that some components will become worn and be identied for change during the
warranty period, the costs associated with the required parts and associated engineer costs are not covered
by this warranty. This will be deemed as preventative maintenance and will not/does not constitute a
manufacturing defect.
6. The equipment must be stored, installed and operated in a frost free area. Damage as a result of adverse
temperature or other adverse environmental conditions will not be covered by this agreement.
7. Any and all non-warranty service visits and non-warranty inspection visits are chargeable and are not covered
by this warranty.
If a defect or problem has arisen as a direct result of the connected system, misuse, incorrect handling, incorrect
installation or incorrect commissioning then any service costs are chargeable.
If a defect is identied as a manufacturing defect it will be addressed as described above, additional remedial
works as a result of misuse, incorrect handling, incorrect installation or incorrect commissioning remain
chargeable.

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Copyright
This manual must be used condentially. It may be circulated among authorised personnel only. It must not be
given to third parties. All documentation is protected by copyright. Distribution or other forms of reproduction
of documents, even extracts, exploitation or notication of the contents hereof is not permitted, unless otherwise
specied in writing by VEXO International (UK) Ltd. Infringements are liable to prosecution and payment of
compensation. We reserve the right to exercise all intellectual property rights.
General Safety Instructions
Disregard or lack of attention to the information and measures in this manual may pose a
hazard to people, animals, the environment and tangible assets. Failure to observe the safety
regulations and the neglect of other safety measures may lead to the lapse of liability for
damages in the event of damage or loss.
Denitions:
• Operator: Natural person or legal entity, who owns the product, uses it or to whom use of the product is
entrusted on the basis of a contractual agreement.
• Principal: Legally and commercially liable client in relation to the system as a whole.
• Responsible Person: The representative appointed to act by the installer or operator.
• Qualied Person (QP): Any person whose professional training, experience and recent professional activity
gives them the requisite professional knowledge. This implies that such people have knowledge derived from
relevant national and internal safety regulations.
Electrical Warning Symbol
Danger - Electric current
Disregarding these warnings may:
• Endanger health.
• Cause death, re or other damage.
• Lead to overloading of individual components and to damage.
• Impair the unit’s function.
Caution - Warning for mistakes and wrong basic assumptions
Consider the implications of errors and incorrect set-up conditions carefully!
Disregarding these warnings may lead to:
• Serious personal injury
• Overloading of individual components and damage
• Impair the unit’s function

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Purpose & Use of this Manual
The following pages list the information, specications, measures and technical data that allow the relevant
personnel to use this product safely and for the intended purpose. Responsible persons or those engaged by
them carrying out the required services must read this manual attentively and understand it. Such services
include: storage, transportation, installation, electrical installation, commissioning and re-starting, operation,
maintenance, inspection, repair and dismantling.
Where the product is to be used in plants/facilities which do not comply with harmonized European regulations
and relevant technical rules and guidelines of professional associations for this eld of application, the present
document is purely for informative and reference purposes. As this unit may be subject to unlimited inspection at
all times, this manual must be kept in the immediate vicinity of the installed unit, at least within the connes of the
operations room.
Qualications Required, Assumptions
All personnel must have relevant qualications to carry out the required services, and be physically and
psychologically capable.
Operating instructions are transferred by VEXO®representatives or others assigned by them during delivery
negotiations or on demand. Training for the required services, installation, dismantling, commissioning, operation,
inspection, maintenance and repair remain the responsibility of VEXO®or their nominated service partners. Such
training covers information about on-site requirements rather than performance.
On-site requirements include logistics, manual handling, and the preparation of an installation location with the
requisite foundation engineering to accommodate the unit, and the requisite hydraulic and electrical connections,
the electrical installation for the power source of the equipment and installation of the BMS signal leads if
required.
Appropriate Use
This equipment is designed for use on sealed and un-sealed thermal systems (heating, chilled and condenser
water). It is designed to remove particulate debris from the system. The maximum operating limits of this
equipment are stated on the data labels afxed to each unit.
Supplied Goods
The items delivered must be compared against the items listed on the shipping note and inspected for conformity.
Unpacking, installation and commissioning may be started only once the product has been checked as
conforming with the intended use. In particular, exceeding the permissible operating or design parameters may
lead to malfunctioning, component damage and personal injury.
If not in line with conformity statement or if the delivery is incorrect in any other way, the product must not be
used.

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Transportation, Storage & Unpacking
The equipment is delivered in packing units in conformity with contract specications or specications required
for the distributors method and climate zone.
They meet the requirements of the distributors packaging guidelines as a bare minimum. In conformity with these
guidelines, equipment is shipped horizontally, each unit packed on reusable pallets. These pallets are suitable for
horizontal transportation with approved fork-lift trucks.
The forks must be set to the widest possible outer dimensions in order to prevent the load from tipping over.
When moving the equipment in question, the forks must be in the lowest possible position, with the article at
right angles to the forks. If the packages are suitable for lifting gear, they will be marked at the appropriate lifting
points.
Important note: Transport the packed goods as close as possible to the envisaged set-up location and make sure
there is a vertical, solid surface on which the goods can be mounted / secured.
Caution:
Please take precautions to make sure the equipment, once it has been removed from the pallet and the
packaging, does not impact any other equipment or surface, tip over or rock.
Once it has been removed from the pallet and the packaging, the equipment must be transferred in a safe
manner. Use methods that prevent uncontrolled falling, sliding or tipping over.
The equipment may also be warehoused in their packaging. Once it has been removed from its packaging, the
equipment must be put in position, observing standard safety procedures. Do not stack the equipment. Use only
permitted lifting gear and safe tools, and wear the required personal protective equipment.
Emergency Stop / Emergency Off
In line with directive 2006/42/EC required EMERGENCY-STOP facility is made available by the rotary isolator on
the X-POT XP+®, refer to the VEXO®X-POT XP+® Schematic, item 18 on page 10 of this document.
Personal Protective Equipment (PPE)
PPE must be used when carrying out potentially dangerous work and other activities, in order to prevent or
minimize the risk of personal injury if other measures cannot be taken.
These must comply with the requirements referred by the main contractor or operator of the plant room or the
site in question. If no requirements are set, to operate the equipment minimum requirements are safety goggles,
hand protection, well-tting clothing and sturdy, closed and skid-proof footwear.
Exceeding Permitted Pressure &/Or Temperature Levels
Equipment used in combination with the VEXO®X-POT XP+®must guarantee that the permitted operating
temperature and the permitted medium temperature (heat transfer medium) cannot be exceeded. Excess
pressure and temperature may lead to component overload, irreparable damage to components, loss of
function and, as a result, to severe personal injury and damage to property. Regular checks/inspections of these
safeguards must be carried out.

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Safeguards
The equipment supplied is equipped with the required safety devices. To test their effectiveness or restore the
original set-up conditions, the equipment must rst be taken out of service. Taking the system out of service
implies that power should be isolated, hydraulics isolated and then vented.
External Forces
Avoid any additional forces (e.g. forces caused by heat expansion, vibration or dead weights on the ow and
return lines).
These can lead to damage / leakage in water-bearing pipework, loss of stability of the appliance and potentially
failure of pressure bearing components.
Electrical Equipment Inspections
Regardless of the prescriptions of the property insurer / operator it is recommended to inspect demonstrably the
electrical equipment of the VEXO®X-POT XP+®together with the heating or chilled installation at least every 12
months.
Maintenance & Repair
These services may only be carried out when the X-POT XP+®is shut down. The VEXO®X-POT XP+® equipment
must be taken out of service and guarded against unintentional re-starting until the maintenance work is nished.
The control panel can be interconnected to a MODBUS (BMS) or alarm system to allow for indication that the
lter is ready for change and the magnets are ready for cleaning.
The Grundfos Smart E-Pump will display a visual indication on screen and a general fault alarm as an indication of
lter blockage.
The unit must be inspected on an annual basis, and the electrical and mechanical components veried for
operation and integrity (See inspection table below).
Task
Visual inspection of components 6 Months - Qualied Person
Operational check of hydraulic
components
12 Months - Annual Service - Qualied
Person
Operational check of electrical
components
12 Months - Annual Service - Qualied
Person
VEXO®X-POT XP+®

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Obvious Misuse
• Operation at incorrect voltage and/or frequency.
• Use in inappropriate system designs and environments.
• Use of non-permitted or inappropriate installation materials.
Product Description
The VEXO®X-POT XP+® is a sealed system, 2 stage side stream ltration and manual chemical dosing unit.
It is a Patented, fully prefabricated, factory tested wall/oor mounted unit incorporating:
• Grundfos CRiE Smart E-Pump (Pump Settings found on Page 19)
• Magnetic Filtration
• Bag Filter Filtration
• Air Separation
• Dirt Separation
• Manual Dosing facility
• Working Pressure up to 16Bar
• Working temperature from O°C up to 95°C
Technical Data
Unit
Model
Unit
Model
Flow Rate
(l/s)
Maximum
System Size
(litres) Width
(mm)
Grundfos Reference Motor Rating Electrical Supply Current
Depth
(mm)
Height
(mm)
Dry Weight
(KG)
Wet Weight
(KG)
Dimensions
Circulating Pump
VEXO®
X-POT XP+
VEXO®
X-POT XP+
1.0 - 3.5 302,400 650
Grundfos IND-0-X-1-CRiE
10-2
1630
1.5kW
126
230/1/50
151
9.10 - 7.60
Amps
1000

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Schematics & Component List
01
02
03
04
05
06
07
09
10
11
12
13
14
15
16
08
ISOLATING VALVE ISOLATING VALVE
DRAIN VALVE
VEXO®X-POT XP+® VESSEL BODY SWING CHECK VALVE
ISOLATING VALVE
BAFFLE PLATE (INTERNAL) CHEMICAL FILL TUNDISH
BAG FILTER & BASKET (INTERNAL) AUTOMATIC AIR VENT
MANUAL VENT ISOLATING VALVE
GRUNDFOS CRiE
(SMART CIRCULATOR E-PUMP) MAINS ON/OFF POWER SWITCH
PRESSURE TRANSDUCER 1
(DIRTY FLOW)
MAGNET GRATE (INTERNAL)
CONTAINING 13 MAGNETS
PRESSURE TRANSDUCER 2
(CLEAN RETURN)

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Operating Principles
The VEXO®X-POT XP+® is designed to be a self-contained ltration equipment, with a dedicated inlet and outlet
connection to a sealed and open vented system. The system uid passes through the hydraulic components in the
ow sequence below:
The system uid is drawn from the main system return and into the VEXO®X-POT XP+® vessel. The uid is
drawn through a twin stage ltration system, in the rst chamber, ferrous particulates are captured by the rare
earth magnets contained in the magnet grate, the uid then passes through the Bafe Plate and into the second
chamber, where non-ferrous particulates are captured by the bag lter before the sampled water
exits the VEXO®X-POT XP+® vessel, it then passes through the Side Stream Filtration Pump and back to the main
system return.
The VEXO®X-POT XP+® is provided with a manual dosing facility comprising of a tundish, isolation valve and
swing check valve arrangement. The equipment is also provided with an automatic air vent for the release of free
air within the VEXO®X-POT XP+®assembly.
The equipment is provided with a proprietary VEXO® Grundfos CRiE Smart E-Pump, with VEXO®control
methodology, that monitors the pressure drop across the VEXO®X-POT XP+®‘Filters’ to determine the status of
the lter media and to trigger the on-site cleaning and replacement of the lter media as appropriate.

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Product Markings
THE FOLLOWING MARKINGS AND WARNINGS ARE INSTALLED ON THE X-POT XP+ UNIT
Approved by:
Contact your X-POT XP+
representative for info.
Recommended
for use with
this product
And more!
®®
INTEGRATED ELECTRONIC SIDE STREAM FILTRATION & DOSING UNIT

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Installation
Basic Installation Instructions
The equipment is to be connected from/to the return header pipework of the appropriate sealed system. The
maximum pipe run length from the system pipework to the VEXO®X-POT XP+® is to be 10m.The 2 connections,
from/to the return pipework, for the VEXO®X-POT XP+®is to be made at the bottom / underside of the return
pipework to allow for any dense particulate solids to be drawn into the VEXO®X-POT XP+®for active removal
from the system. A 1” drain with isolation valve is supplied at the bottom of the vessel. Extend this drain to a local
oor gully with a minimum fall of 1:100.
The Power supply to the VEXO®X-POT XP+®is to be provided from the main system pump electrical supply.
Therefore, the VEXO®X-POT XP+®will only be activated when the main system pump is running and active.
Ensure the power supply is 230V ~ 1N PE 50Hz via a suitable Fused Spur and Isolator.
It is essential to ensure the environment that this equipment is installed in is safe to work and is free from trip
hazards.
Critical Installation Requirements
The equipment must be sited:
• In a frost free area (> 5°C) and must also be protected from adverse environmental conditions.
• In a well-lit area to allow for safe changing of the lter media and chemical dosing.
• On a at, horizontal, level, solid oor with access to the electrical panel, pump and VEXO®X-POT XP+®vessel
itself.
Care must be taken when handling this equipment. Appropriate safety measures must be in place in respect of
use, handling and application of:
• Electrical equipment
• Pressure vessels
• Sealed system water
• Powerful rare earth magnets
• Filter media
• Hydraulic equipment
• Manual handling
• Chemical inhibitors and additives
• Particulate debris

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Commissioning
1. General
The VEXO®X-POT XP+®is a ‘Plug and Play’ unit. The VEXO®X-POT XP+®is supplied with a Grundfos Smart
E-Pump Pre-Commissioned for each site/project. Please nd Pre-Set Congurations for manual Conguration on
Page.19 if required.
The operator should read this section prior to hand-over of the equipment from the installation operative to be
condent on the operation of the Grundfos CRiE Smart E-Pump and the VEXO®X-POT XP+®unit as a whole.
The Control System is based around a VEXO®iX-2 Controller complete with |/O modules.
A Display Panel can be located on the Grundfos CRiE Smart E-Pump to allow interrogation and adjustment of the
parameters.
In the event of a power failure, the Grundfos CRiE Smart E-Pump will return to its Pre-Congured set operating
mode once power has been restored.
The power supply to the VEXO®X-POT XP+®is provided from a Fused Spur or Distribution Board rated to the
power requirements of the pump. Therefore the VEXO®X-POT XP+®will be in continuous operation unless a
blocked lter state is detected.
Ensure the power supply to the VEXO®X-POT XP+®is 230V ~ 1N PE 5OHz via a suitable Fused Spur.
The power supply is then connected to the main VEXO®X-POT XP+® Mains Isolation Switch, refer to the unit
schematic, on page 10 (Schematic) of this document.
WARNING
This equipment must only be used, maintained or
serviced by trained competent
engineers. If in any doubt please do not touch this
equipment.
For further advice please contact VEXO International
(UK) Ltd or your reseller for additional information
and guidance.
WARNING
This equipment uses Rare Earth Magnets with a
strong magnetic eld.
You should not use, service or work in the close
vicinity (30cm / 1ft) of this equipment if you are
tted with a pacemaker or other electromechanical
medical devices.

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MAX FLOW RATE
SET-POINT
BAG FILTER
MESH COARSENESS
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
1.00l/s FLOW RATE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
MAX PRESSURE
SET-POINT CURVE SELECTION OPERATIONAL POWER %
1.1 X-POT XP+®Control Methodology
The Grundfos CRIE Smart E-Pump provides the control logic for the VEXO®X-POT XP+® Unit. The Grundfos CRIE
Smart E-Pump operates on constant Curve Control based on a set Flow Rate and Pressure. Upon selection of
the Set Curve to match Flow Rate and Pressure Set Points. The Grundfos CRIE Smart E-Pump will then operate
Constant Pressure Curve.
3.50l/s
3.25l/s
3.00l/s
2.50l/s
2.25l/s
2.00l/s
1.75l/s
1.50l/s
1.25l/s
1.00l/s
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
8kPa
8kPa
12kPa
20kPa
28kPa
10kPa
10kPa
15kPa
25kPa
35kPa
16kPa
16kPa
24kPa
40kPa
56kPa
140kPa
135kPa
135kPa
130kPa
130kPa
110kPa
100kPa
80kPa
70kPa
60kPa
88%
84%
81%
75%
73%
66%
62%
55%
50%
46%
920.9 watts
808 watts
729.40 watts
573.50 watts
515.7 watts
394.8 watts
321.1 watts
229 watts
176.9 watts
132.8 watts
The set-point for maximum differential pressure will be set dependent on the Bag Filter installed in the VEXO®
X-POT XP+® Unit. Please nd the table below for set-points for corresponding Bag Filter Mesh Coarseness and
Flow Rate Set-Point.

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BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
0.50l/s FLOW RATE
1.25l/s FLOW RATE
1.50l/s FLOW RATE
1.75l/s FLOW RATE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
8kPa
8kPa
12kPa
20kPa
28kPa
9kPa
9kPa
15kPa
21kPa
30kPa
10kPa
10kPa
20kPa
30kPa
40kPa
11kPa
11kPa
22kPa
35kPa
46kPa
10kPa
10kPa
15kPa
25kPa
35kPa
12kPa
12kPa
19kPa
27kPa
38kPa
12kPa
12kPa
25kPa
38kPa
50kPa
14kPa
14kPa
28kPa
44kPa
58kPa
16kPa
16kPa
24kPa
40kPa
56kPa
18kPa
18kPa
30kPa
42kPa
60kPa
20kPa
20kPa
40kPa
60kPa
80kPa
22kPa
22kPa
44kPa
70kPa
92kPa

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X-POT XP+®O&M Manual
Last Updated - 11/01/2023
Page 17
®
®
BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
BAG FILTER
MESH COARSENESS
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
2.00l/s FLOW RATE
2.25l/s FLOW RATE
2.50l/s FLOW RATE
3.00l/s FLOW RATE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
12kPa
12kPa
28kPa
40kPa
55kPa
14kPa
14kPa
29kPa
45kPa
57kPa
16kPa
16kPa
34kPa
50kPa
65kPa
18kPa
18kPa
36kPa
52kPa
67kPa
15kPa
15kPa
35kPa
50kPa
69kPa
18kPa
18kPa
37kPa
57kPa
72kPa
20kPa
20kPa
43kPa
63kPa
80kPa
22kPa
22kPa
45kPa
65kPa
82kPa
24kPa
24kPa
56kPa
80kPa
110kPa
28kPa
28kPa
58kPa
90kPa
114kPa
32kPa
32kPa
64kPa
100kPa
130kPa
38kPa
38kPa
68kPa
105kPa
135kPa

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X-POT XP+®O&M Manual
Last Updated - 11/01/2023
Page 18
®
®
BAG FILTER
MESH COARSENESS
CLEAN FILTER
STATE DIFFERENTIAL
PRESSURE
3.50l/s FLOW RATE
DIRTY FILTER
STATE DIFFERENTIAL
PRESSURE
BLOCKED FILTER STATE
DIFFERENTIAL
PRESSURE (SET-POINT)
100 Micron
50 Micron
25 Micron
5 Micron
1 Micron
20kPa
20kPa
38kPa
54kPa
69kPa
24kPa
24kPa
47kPa
67kPa
84kPa
42kPa
42kPa
72kPa
110kPa
140kPa
2. Enable Filtering
It is important to visually inspect the electrical connections, components and conduit serving the VEXO®X-POT
XP+®unit before commencement of the operation of the unit. It is important to visually inspect the VEXO®
X-POT XP+® unit hydronic connections before commencement of the operation of the unit to conrm the
following;
• The integrity of all ttings and pipework connecting the heating / chilled system to the VEXO®X-POT XP+®
- ensure there are not leaks.
• The lid closure of the VEXO®X-POT XP+®is closed and sealed tight in accordance with the ‘Bolt Tightening’
method in Section 4 (Page 66) of this document.
• All isolating valves ‘as supplied’ which connect the VEXO®X-POT XP+®to the main heating / chilled system
should be in the ‘open’ position. Rotate the valved handles to be in-line with the pipework it is connected to.
Refer to page 10 for the VEXO®X-POT XP+® Schematic, valve references 1, 9 & 12.
• All isolating valves ‘as supplied’ which connect the VEXO®X-POT XP+®to the main heating / chilled system
should be in the ‘open’ position. Rotate the valved handles to be in-line with the pipework it is connected to .
Refer to page 10 for the VEXO®X-POT XP+® Schematic, valve references 1, 9 & 12.
• When the VEXO X-POT XP+ has been lled with system water and pressurized, check the hydronic integrity
of all ttings and pipework within the VEXO®X-POT XP+® unit - Ensure there are no leaks. To conrm the
VEXO®X-POT XP+® has been lled, check the Grundfos CRIE Smart E-Pump is displaying a pressure reading.
• Any system air will be drawn out through the Automatic Air Vent, item (14). This is a normal procedure.
2.1 Side Stream Circulation Pump
The Side Stream Circulation Pump (Item 10) installed on the VEXO ®X-POT XP+ ® is a Grundfos CRIE Smart
E-Pump. The pump is Pre-Congured Site / Project Specic Set-Points. However, these parameters can be
checked / altered via the Pre-Conguration Table. Which can be found on the following page.
2. Activation
The VEXO ®X-POT XP+ ®can be activated by turning the Isolator Switch from the ‘Off’ position to the ‘On’
position. The Grundfos CRIE Smart E-Pump will now be activated.

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X-POT XP+®O&M Manual
Last Updated - 11/01/2023
Page 19
®
®
Pump Conguration
3
15
8
26
23
25
24
7
21
20
22
B
Y
6
5
2
4
10
A
+24 V*
1
14
9
12
17
19
11
18
+24 V*
+
+24 V* OC DI
+24 V*/5 V*
+24 V*
+
++
+24 V*/5 V*
+24 V*
+24 V*
+
+
+24 V*/5 V*
+24 V*
+5 V*
AI2
GDS RX
GDS TX
GND
GENIbus A
GENIbus B
+5 V
+24 V
+24 V
GND
GENIbus Y
GND
+5 V
DI1
AI1
DI3/OC1
LiqTec
AI3
GND
DI2
LiqTec
GND
AO
Pt100/1000
Pt100/1000
DI4/OC2
GND
+24 V* OC DI
GND
NC
C2
NO
NC
C1
NO
+5 V*

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X-POT XP+®O&M Manual
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Page 20
®
®
NC
C1
NO
Normally closed
contact
Normally open
contact
Common Signal relay 1
(LIVE or PELV)
TERMINAL TYPE FUNCTION
A
Y
B
GENIbus, A
GENIbus, Y
GENIbus, B
GENIbus, A (+)
GENIbus, GND
GENIbus, B (-)
TERMINAL TYPE FUNCTION
NC
C2
NO
Normally closed
contact
Normally open
contact
Common Signal relay 2
(PELV only)
21
20
22
LiqTec sensor
input 1
LiqTec sensor input
(white conductor)
Ground (brown and
black conductors)
LiqTec sensor input
(blue conductor)
LiqTec sensor
input 2
GND
3GND Ground
15 +24 VS upply
8+24 VS upply
23 GND Ground
25 GDS TX Grundfos Digital
Sensor output
Grundfos Digital
Sensor output
24 GDS RX
7AI2
26 +5 V
Supply to
potentiometer and
sensor
Analog input:
0-20 mA / 4-20 mA
0.5-3.5 V / 0-5 V /
0-10V
2
10 DI3/OC1
Digital input/output,
configurable.
Open collector: Max.
24 V resistive or
inductive.
4A I1
DI1
Analog input:
0-20mA / 4-20 mA
0.5 - 3.5 V / 0-5 V /
0-10 V
18
11
19
17
12
GND Ground
Pt100/1000
input 2
Pt100/1000
sensor input
Pt100/1000
input 1
Pt100/1000
sensor input
1D I2 Digital input,
configurable
Digital input,
configurable
5 +5 V
Supply to
potentiometer and
sensor
AO
9GND Ground
9GND Ground
Analog output:
0-20 mA / 4-20 mA
0-10V
14 AI3
Analog input:
0-20 mA / 4-20 mA
0-10V
DI4/OC2
Digital input/output,
configurable.
Open collector: Max.
24V resistive or
inductive.
Pump Conguration Table