Multi-DENCO Commissioning
FläktGroup DC-2013-0101-GB • Subject to modifications • R5-08/2020 99
• Check any electrical installation has been conducted as per the unit specific contract
electrical drawing
• Check all electrical connections are tight
• Check earth conductors are connected correctly and the earth terminals are secured
tightly
• Check any signal and mains power cables are segregated
• Check inside of the control cabinet for loose connections or damaged components
• Tighten all supply terminals in the motor terminal clamps
• Ensure temperature and humidity sensors are adequately protected by their
enclosures
ONLY when all the above checks been completed can the unit's circuit breakers
(MCBs) can be set to the ON position.
NOTE!
When commissioning a unit with the option: "Automatic Transfer Switch (Dual
Power Supply)" it is important to check the electrical supply of BOTH the incoming
supplies. Both electrical supplies must match the requirements of the unit name-
plate. Also the phase rotation of both incoming supplies must be checked.
Select a primary supply using the supplied key and test that the dual power supply
changes over when the primary supply is lost. Then select the other supply to be the
primary power supply and carry out the test again.
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