Hydrovar Pump Controller Installation & Operation Manual
Hydrovar Pump Controller Installation & Operation Manual
Hydrovar Pump Controller Installation & Operation Manual
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Electrical <strong>Installation</strong> and Wiring<br />
Section 8<br />
Note<br />
Note<br />
All installations and maintenance must be performed by properly trained and<br />
qualified personnel. Use personal protection equipment.<br />
In case of a failure, the electrical power must be disconnected or switched off. Wait<br />
at least 5 minutes for capacitor discharge before servicing the HYDROVAR. Shock,<br />
burns or death are possible hazards if the capacitor discharges during maintenance,<br />
repair, or assembly.<br />
8.1 Equipment Protection<br />
Follow state, and local codes for proper equipment protection.<br />
Applicable: • proper grounding<br />
Proper grounding:<br />
• AC and DC Ground Fault Circuit Interrupter (GFCI)<br />
• Please note that leakage to ground can occur due to the capacitors in the input filter.<br />
• A suitable protection unit has to be selected (according local regulations).<br />
Ground Fault Circuit Interrupter (GFCI):<br />
• When using a GFCI, make sure that it also releases in the event of a short circuit inside the DC-part of<br />
the HYDROVAR to ground!<br />
• single phase HYDROVAR => use pulse sensitive GFCI's<br />
• three phase HYDROVAR => use AC/DC sensitive GFCI's<br />
• The GFCI should be installed according to local regulations!<br />
Fuses:<br />
• Use Very fast acting Class T fuses<br />
• Bussman T-tron type JJN and JJS fuses are acceptable (or equal)<br />
Internal equipment protection:<br />
• The <strong>Hydrovar</strong> has internal protections against the following malfunctions: short circuit; under and overvoltage,<br />
overload and the overheating of the electronic components.<br />
External protective devices:<br />
• Additional protective functions like motor overheat and low water protection are controlled by separate<br />
equipment.<br />
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