Altecnic Matrix Midi 135D Guide

Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the end user as it contains important
guarantee, maintenance and safety information
Read this manual carefully before commencing installation.
This manual covers the following products:
Matrix Midi 135D
Pt. No. 121-1011
Matrix Midi 150D
Pt. No. 121-1012
Matrix Midi 235D
Pt. No. 121-1013
Matrix Midi 250D
Pt. No. 121-1014
2
CE compliant product
Matrix Midi

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PRODUCT DESCRIPTION
Heating and cooling system pressurisation top up unit with integral water storage tank and electric
motor driven peripheral pump, automated control system consisting of pressure transducer and
water level sensors. The tank includes an AB air gap for category 5 fluid isolation (BS EN 1717).
APPLICATION
The Matrix Midi range is designed to provide initial system fill and intermittent water top up
to compensate for intermittent losses in system pressure in heating and cooling systems in
commercial or industrial applications. These could include slight leaks, air venting, etc. The units
are not designed to deal with sudden losses of system pressure due to major water losses over
extended periods. They are also not to be used for water boosting applications.
STORAGE
If this product is not to be installed immediately on receipt, ensure that it is stored in a dry, frost
and vibration free location in its original packaging.
CONTENTS Page
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Important Facts - read before commencing installation ................................6
Location .......................................................................7
Key Features ...................................................................9
Installation .....................................................................10
Electrical Installation ............................................................14
Commissioning .................................................................18
Operation .....................................................................25
Maintenance ...................................................................27
Environment Protection ..........................................................28
Technical Specification ...........................................................29
Trouble Shooting ................................................................30
Product Log ....................................................................31
Guarantee .....................................................................34

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WARNINGS:
zThis appliance must not be used for any other application
without the written consent of Altecnic Limited.
zThis appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children
without supervision.
zChildren should be supervised to ensure that they do not
play with the appliance.
zThis product should not be used for the supply of water to
more than one heating/cooling system at a time.
zThe electrical installation must be carried out in accordance
with the current national electrical regulations.
zThe electrical installation must be installed by a qualified
person.
zThe motor is not accessible in normal operating mode. The
unit must only be operated with the front cover in place.
zThe electrical installation must be carried out in accordance
with the current national electrical regulations and installed
by a qualified person.
zIn the interests of electrical safety a 30 mA residual current
device (R.C.D. not supplied) should be installed in the supply
circuit. This may be part of a consumer unit or a separate
unit.
zThis appliance must be earthed via the supply cord.
Please read installation details carefully as they are intended to ensure this product provides
long, trouble free service. Failure to install the unit in accordance with the installation
instructions will lead to invalidation of the warranty.

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CHECKLIST
Note:
Your product may vary slightly from the picture above.
Item Description Qty Item Description Qty
Matrix Midi 1 Fill valve flow restrictor 2
Front cover 1 Rubber hose sealing washer, to be
used with item C 2
Flexible hose, G ½ 15 mm
compression 2 Cable tie 2
M6 screw 1 Instruction book 1
Wall mounting plate 1
A
E
C
B
D
H
G
F
I
C
Fig. 1
IMPORTANT: With the appliance removed from its packaging
check for any damage prior to installation. If any damage is
found contact Altecnic Ltd within 24 hours of receipt.
AD
Front cover removed for clarity
B
E
Electrical rating
plate & serial
number
G
F
H

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1 IMPORTANT FACTS: READ BEFORE COMMENCING PUMP INSTALLATION
A Water storage capacity.
1.11 The Matrix Midi has a usable water volume of approximately 8 litres; the length of time
the Matrix Midi takes to pressurise a system will be dependent on:-
The pressure differential between the cold fill and set pressures and also the refill rate of
the tank
1.12 Ensure the pumps are primed as described in the priming section before starting, to
avoid causing damage to the pump shaft seal. See Section 6.26 Hydraulic commissioning.
B Water temperature
This unit is designed to pump cold water only which should not exceed the following values:
1.13 The maximum allowable water temperature is 23 oC (see Section 10).
1.14 The minimum allowable water temperature is 4 oC.
C Pipework - General
1.15 Do not drill holes or put fastenings into the Matrix Midi tank, this will cause leakage.
1.16 Secure pipework: Ensure pipework to and from pump is independently supported &
clipped to prevent forces being transferred to inlet and outlet branches of the unit. Do
not secure pipework to the Matrix Midi, this will cause damage and possible leakage.
1.17 Flux: Solder joints must be completed and flux residues removed prior to Matrix Midi
installation (flux damage will void any warranty).
1.18 Pipework design: Care should be taken in the design of pipework runs to minimize the
risk of air locks e.g. use drawn bends rather than 90obends.
1.19 DO NOT introduce solder flux to flexible hose, tank, pump or any parts
manufactured from plastic.
1.20 DO NOT allow contact with oil or cellulose based paints, paint thinners or
strippers, acid based descalents or aggressive cleaning agents.
1.21 DO NOT bend the flexible hose beyond 90o. It must be installed as detailed,
DO NOT kink. See Installation Section 4.15.
D Plumbing Installation Regulations
1.22 The plumbing installation must comply with the current water and building regulations.
1.23 The plumbing installation must be installed by a qualified person.

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2 LOCATION-GENERAL
2.11 Location: The preferred Matrix Midi location is either on a solid wall or on a
smooth level floor, both of sufficient strength to support the filled weight
of the Matrix Midi, close to the water source and a suitable overflow
position (see Section 9 - Technical Specification for filled weight). The Matrix
Midi must not be installed in a loft space. It must also be considered that
the noise and vibration from the Matrix Midi may be transmitted through the
structure it is sited on. Ensure the minimum clearance requirements are
followed to allow servicing of the unit
2.12 Access and minimum clearance requirements: For emergencies and
maintenance the Matrix Midi must be easily accessible and have the
minimum clearance around it as laid out in Fig. 2.
Additional access to the front of the unit will be required to operate the
keypad and view the display.
2.13 Protection: The Matrix Midi must be located in a dry, frost free area.
2.14 Ventilation: Ensure an adequate air flow to cool the Matrix Midi.
Separate the Matrix Midi from other appliances that generate heat.
Do not block the vent holes on the front cover or the air inlet at the rear.
2.15 Water retention: Site the Matrix Midi in a location where in the unlikely
event of a water leak, any spillage is contained or routed to avoid
electrics or areas sensitive to water damage. As part of the AB airgap (CAT
5 fluid isolation) the Matrix Midi has a weir type overflow on the right hand
side, water will be discharged from this area in the event of the failure of the
inlet valve or non-return valves.
2.16 Supply inlet pressure: The water supply inlet pressure must not exceed 7 bar.
2.17 Ambient temperature: The Matrix Midi must be sited in a location where the ambient
temperature does not drop below 4 °C or exceed 40 °C.
Fig. 2
300
500
300
150150
Dimensions in mm

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2.18 Pipework: For optimum performance inlet and outlet pipework must be a minimum of
15 mm pipe.
2.19 Static outlet pressure: The static outlet head must be 3 metres below pump maximum
cold fill pressure (vertically above the appliance).
2.20 Noise: A flexible hose is supplied as standard which will minimise the transmission of
noise and vibration from the Matrix Midi pump to the pipework connected to the
appliance outlet. However, care must be taken when mounting the Matrix Midi that any
noise is not amplified through loose panels or pipework.
2.21 Flexible hose: Only use the Altecnic Ltd hoses supplied with the Matrix Midi.
2.22 Isolating valves: Separate system isolating valves (non-restrictive) must be fitted to allow
easy service of the Matrix Midi. Isolating valves must be mounted where specified to
allow the system isolation and removal of the Matrix Midi if needed. See Section 4.15 for
installation details.

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3 KEY FEATURES
3.11 The Matrix Midi comprises of the following main components:-
1. Moulded tank – Main body of the Matrix Midi, comprising of an integrated water
tank with warning pipe and weir overflow and mounting the brass pump assembly,
manifold and controller.
2. Pump assembly – One or two brass peripheral pump units powered by induction
motors, with integrated non return valves and venting screw.
Mounted into the moulded tank with vibration isolating rubber mounts.
3. Outlet manifold – Brass manifold with pressure transducer used to monitor system
pressure and connection to the pump(s).
4. Programmable controller – Custom designed, user set controller, allowing system set
up and easy alarm connection.
5. Wall mounting plate – Robust stainless steel wall mounting plate allowing quick, easy
installation and removal if needed.
6. Moulded cover – Moulded acrylic capped ABS cover retained to the moulded tanks
with Dual LockTM fastening system for quick and easy access.
3.12 Principle of operation: The pressurisation unit consists of a break tank and one/two
peripheral pumps. The break tank is supplied with mains water from either the left or
right through a flexible hose connected to a float valve and includes an overflow and
weir to maintain an AB air gap in the tank. The unit is connected to the heating/chiller
system via another flexible hose which can exit the unit on either the left or right.
The pumps are connected to the tank via a rubber connector.
A pressure transducer monitors system pressure and if a reduction in system pressure is
detected, the controller runs the pumps until the system is re-pressurised to the
required pre-set level. If the unit only has a single pump connected it will run
continuously until this level is reached, if the unit is a twin pump model the pumps
run in duty standby mode (the controller will alternate which pump starts first
to even the wear on the pumps). The pumps are fitted with non-return valves to ensure
system pressure is maintained once pressurised.
1Fig. 3
2
3
4
5
6

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4 INSTALLATION
4.11 Fill valve flow restrictor guidelines: The side entry fill valve must be fitted with the
correct filter and flow restrictor combination (dependant on the mains water pressure)
into the G ½ threaded tail as outlined below:
Coloured insert - To be used for water pressure between 1 and 4 bar
White insert - To be used for water pressure above 4 bar
4.12 Cold mains feed connection: The connection to the cold water mains inlet is made using
the 15 mm compression flexible hose supplied. Ensure the rubber sealing washer
supplied with the hose is installed when the hose is fitted. When tightening ensure the
fill valve within the tank is not rotated. If the valve is rotated it may not function correctly
with the risk of flooding. The hose is made water tight with a sealing washer on
assembly, nip tight to 4 to 5 Nm for water tight seal. (Do not overtighten). See Fig. 6.
Fig. 4
Fig. 5
Fig. 6

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4.13 Wall plate fixing:
1. If installing the Matrix Midi on a wall ensure suitable fixings for the wall structure are
used and are suitable to support the unit when fully filled with water (see
Section 10 for filled weights). The holes in the wall plate are 6 mm in diameter, the
maximum permissible screw head height is 3 mm.
2. All holes in the wall mounting plate must have fixings used in them as per the image
below, do not leave out fastenings as this will compromise the integrity of the
wall plate.
3. Ensure you have sufficent room around the area you are mounting the Matrix Midi to
allow installation, servicing and operation. See section 2.12.
4. Ensure wall plate is fixed to a flat vertical wall and the top of the plate is horizontal.
5. Retain the Matrix Midi to the wall mounting plate using the single M6 retaining screw
at the top of the wall plate.
6. Fit the plastic cover by pressing as indicated below with the palm of the hand as until
the Dual LockTM is heard to ‘click’.
Fig. 7
Fig. 8
Fig. 9