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EN
Hydro Unit
Installation Manual
CAUTION
• Be sure to prepare a non-voltage continuous contact for each terminal.
• Supplementary Insulation must be added to user touchable part of switches.
Electrical safety checks
The electrical safety checks must be completed before turning on the electrical supplies to the Air to Water heat
pump system. The electrical safety checks should be completed by a qualified electrician. All results measured
should comply with your local/national electrical installation regulations.
Earth continuity test
On completion of the electrical installation a resistance test should be completed on the earth conductor to ensure
continuity between all pieces of equipment on the earth conductor.
Insulation resistance test
This test must be completed using a 500 V D.C. insulation resistance tester. Insulation resistance tests should be
completed between each live terminal and earth.
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Summary of Contents for ESTIA HWS-1402XWHM3-E
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