Warranty Cover; Technical Data; Operating Limits; Ambient Temperature - Zenit UNIQA M08S Manuel De Première Installation

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First installation manual – Translation of original instructions

1.7 Warranty cover

Zenit undertakes to repair or replace the product if failures are due to design, manufacturing and assembly defects and are reported to Zenit during
the warranty period.
The warranty does not cover failures due to:
•
normal wear and tear;
•
improper handling, installation and use;
•
use with incorrectly connected control systems;
•
work done by unskilled staff;
•
use of non-genuine spare parts.
!
warning Any modifications made to the product without the manufacturer's authorisation may cause hazards and lead to a deterio-
ration in performance and loss of warranty cover.
Any interventions of the pump in -EX versions must be carried out by an authorised Service Centre or by authorised technicians
using only original spare parts. Failure to comply with this conduct infers the loss of the ATEX certification of the machine and
invalidates the guarantee.

1.8 Technical data

The product's technical data and characteristics are provided in the technical information.
EN

1.8.1 Operating limits

For correct use, comply with the following operating limits:

• Ambient temperature:

The temperature of the pumped liquid must be below the Tamb max value specified on the nameplate.
• Minimum level of liquid
Note: The minimum level of the liquid in the tank must never drop below the motor cover in order to ensure that the pump is cooled effectively
(Fig. 1A page 69).
If models with cooling jacket or allowing dry operation are installed, the minimum level of the liquid may fall below the motor cover but must always
at least be above the body of the pump to prevent the formation of turbulence which may allow air to be drawn in (Fig. 1B page 69); a check should
always be performed to ensure that the electric pump operates correctly with the minimum liquid level.
Depending on the specific installation, additional measures may be necessary to ensure correct operating conditions for the pump on the intake
side.
Attention: to ensure the declared ATEX conformity, a level control system will have to be implemented, with strict manual re-
arming, through the use of tank balls, level probes or, alternatively, manned-operation.
The -EX version electric pump can be used with a frequency converter (inverter) with the compulsory condition that the breakers
inside the motor are correctly connected to the control panel (possibly, for non-standard panels, outside of the risk area).
1.9 Name plate on the pump
On the pump you can find two metal plates: the main one (Fig. 26 page 78) displays the main features of the product while, on the -EX version
models, a second plate (Fig. 27 page 78) specifies if the model can be used in potentially explosive atmospheres as per 94/9/CE (ATEX) directive.
ATEX brand meaning (potentially explosive atmospheres)
In accordance with the EN 60079-0 Standard the following is assumed:
The symbol shown is in conformity with Annex X of Directive 94/9/CE and identifies that the product meets the essential health and
safety requirements laid down by that directive;
0000 identification number of the organisation undertaking the production control;
Specific symbol of the ATEX Directive 94/9/CE, shown in Annex II of the Directive
II Group to which the appliance concerned belongs. Group II applies to equipment NOT used in mining;
2 category of the appliance to be certified (products designed for operation in zone 1);
G explosive atmospheres permissible around the equipment may be in the form of gases, vapors and mists;
Ex Ex symbol for electrical equipment for use in potentially explosive atmospheres required by technical legislation;
db
the electrical protection mode used for the device corresponds to confinement in a flameproof enclosure - electrical apparatus suita-
ble for zone 1;
k the mechanical protection mode used for the device corresponds to that of protection for immersion in liquids;
IIB class of gas for which the equipment is suitable;
T4 The maximum surface temperature of the apparatus (T4 = 135°C);
D explosive atmospheres permissible around the equipment may be in the form of dusts;
tb
protection of electrical construction with enclosure for dust - electrical apparatus suitable for zone 21;
IIIC class of dust for which the equipment is suitable (combustible dust);
T135°C indicates the maximum surface temperature.
16
II 2G Ex db k IIB T4
II 2D Ex tb IIIC T135°C
0000