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Galvanic corrosion of the Copper/Aluminium connection can occur in corrosive atmosphere under the plastic protection;
during the maintenance operations or periodic cleaning, check the aspect of the plastic protection of the copper/aluminium
connection. If it is inflated, damaged, or removed contact the manufacturer representative for advice and information.
8.2.2. Electrical Installation
All electrical maintenance activities must be followed by qualified personnel. Make sure the system
is switched off and the main switch of the unit open. Failure to observe this rule could result in serious
personal injury. When the unit is turned off, but the disconnection switch is in the closed position,
the unused circuits will still be active.
The maintenance of the electrical system consists of the application of some general rules as follows:
1.
the current absorbed by the compressor must be compared to the rated value. Normally the value of the absorbed
current is lower than the rated value that corresponds to the absorption of the full load compressor at the maximum
operating conditions.
2.
at least once every three months all the security checks must be made to verify their functionality. Each appliance,
with aging, can change its point of operation and this must be monitored to adjust it or replace it. The pump interlocks
and flow switches must be checked to make sure that they interrupt the control circuit if they intervene.
8.2.3. Service and limited warranty
All units are factory tested and guaranteed for 12 months as of the first start-up or 18 months as of delivery.
These units have been developed and constructed according to high quality standards ensuring years of failure free
operation. However, the unit requires maintenance even during the warranty period, from the time of installation
and not just from the commissioning date. We strongly advise stipulating a maintenance contract with a service
authorized by the manufacturer to ensure efficient and problem free service, thanks to the expertise and experience of our
personnel.
It must be borne in mind that operating the unit in an inappropriate manner, beyond its operating limits or not performing
proper maintenance according to this manual can void the warranty.
Observe the following points, to conform to warranty limits:
1.
The unit cannot function beyond the specified limits.
2.
The electrical power supply must be within the voltage limits and without voltage harmonics or sudden changes.
3.
The three-phase power supply must not have an unbalance between phases exceeding 3%. The unit must stay turned
off until the electrical problem has been solved.
4.
No safety device, either mechanical, electrical, or electronic must be disabled or overridden.
5.
The water used for filling the water circuit must be clean and suitably treated.
6.
The value of the BPHE water flow must be included in the declared range for the unit considered, refer to the CSS
selection software.
D-EIMHP01505-22_00EN 47/59
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