Aquatech Pressmain MG-LT Manuale di istruzioni - Pagina 6
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Electromagnetic disturbance – first environment (residential areas) –restricted distribution. Immunity
to Electromagnetic disturbance – second environment (industrial areas) – unrestricted distribution,
corresponding to CISPR 11, class A, group 1. Inverter motors > 5.5kW for installation in first
environment (residential areas) require additional EMC filter to obtain class B, group 1 status.
0.2.27
EMC ‐ With respect to BS EN61000‐3‐2 this equipment is defined as 'professional equipment' and
therefore the installer/user may need to seek permission from the supply utility to connect this
equipment to the public low voltage mains supply.
0.2.28
Where "Expansion vessels" are used on Domestic hot water systems (DHWS) or LTHW heating system
pressurisation units, the temperature of the fluid returning to the vessels should not exceed 70
degrees Centigrade as this could damage the vessel diaphragm. Where the temperature exceeds 70C
an intermediate cooling vessel should be fitted.
0.2.29
Where applicable Drain cocks/valves and air bleed screws must not be left open as this could cause
flooding.
0.3
CAUTIONS FOR OPERATION/USER
0.3.1
READ GENERAL SAFETY INFORMATION 0.0, WARNINGS 0.1 and CAUTIONS 0.2, 0.3 & 0.4
0.3.2
The unit should only be operated/used by a competent person; A competent person is someone who is
technically competent and familiar with safety practices and the hazards involved.
0.3.3
The Owner/User of this equipment has a Legal Responsibility to ensure that it is subject to regular
formal inspections. See Section 3. Servicing, for details.
0.3.4
Where Hydraulic Accumulator(s)/Expansion Vessel(s) are supplied as a loose item, they must be
installed/connected correctly before operating the equipment, otherwise serious damage from over‐
pressure could occur.
0.3.5
The equipment must not be used/run until commissioned by an authorised AquaTech‐Pressmain agent,
this could irreparably damage the sensors/pump set and/or system components/pipework connected to
it.
0.3.6
The controller/pumpset should be left switched ON with the pumps (where fitted) switched to AUTO for
normal operation.
0.3.7
The pumpset (where appropriate) should not be left in "Hand" operation for more than 1 minute. This
could lead to severe damage of pumpset components and/or pipework system from over‐pressure
and/or overheating.
0.3.8
Ensure sensors and pumpset (where appropriate) have an adequate water supply at all times to prevent
damage and water leakage.
0.3.9
Where appropriate do no attempt to start pumps without liquid in volutes (pumps must be fully
primed); mechanical seals must have a film of liquid between faces for proper operation and to prevent
damage.
0.3.10 Portable telephones or other electro‐magnetic equipment must not be used near the set to avoid
corruption of program and unpredictable operation of unit.
0.4
CAUTIONS FOR MAINTENANCE
0.4.1
READ GENERAL SAFETY INFORMATION 0.0, WARNINGS 0.1 and CAUTIONS 0.2, 0.3 & 0.4
0.4.2
The unit should only be operated/maintained by a competent person; A competent person is someone
who is technically competent and familiar with safety practices and the hazards involved.
0.4.3
Where the equipment is fitted with Building Management Services (BMS) interconnections, notify the
appropriate persons before switching OFF for maintenance or adjustments, to avoid unnecessary alarm
conditions occurring. WARNING: With isolator OFF, mains voltage may still be present from BMS system.
This constitutes an Electric shock hazard.
0.4.4
Where appropriate; To prevent seizing, pumpsets must not be left unused for long periods (e.g. 1 week).
0.4.5
Where appropriate; The pumps must be run regularly to avoid stagnation of water in the
pumps/pipework (e.g. daily).
Aquatech‐Pressmain Instruction manual\Tankmatic smart relay MG‐LT
Tankmatic Smart Relay
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