Operation Multi-DENCO
114 FläktGroup DC-2013-0101-GB • Subject to modifications • R5-08/2020
9Operation
More comprehensive details and explanation on the control and regulation of the
Multi-DENCO units are available in Controller Manual.
This manual does not cover control of units that have been provided "without controls".
9.1 Requirements
Prior to using a Multi-DENCO unit, a full and safe installation and commission must
have been conducted by a suitably qualified personnel and a record of both processes
must be stored. The commissioning report (chapter 13.3) must have been sent to your
local sales office to validate warranty during operation.
Before use all operators MUST be familiar with the following:
– The contents of this manual
– Safety assessment for the location where the Multi-DENCO unit is situated
– Location of the associated outdoor equipment (if applicable)
– Location of power distribution board isolator
– Location of the mains isolator
– Either fitted within the door of the Multi-DENCO unit or within 1m of the unit
– Location of circuit breakers (MCBs) inside the Multi-DENCO unit
– Shut off (isolation) valves for the Multi-DENCO unit including (if applicable):
– Refrigerant circuit
– Chilled Water Circuit
– Hot Water Circuit
– Humidifier Circuit
9.2 General operation
Close control units, like Multi-DENCO, are designed for continuous operation to cover
the 8760 hours in a year, thus allowing constant indoor temperatures to be maintained.
9.2.1 Enabling the unit
To enable the unit to operate, you must:
• Switch the isolator to the 'ON' position at the mains distribution board
• Switch the isolator to the 'ON' position on isolator fitted to the unit (or within 1 m)
• Switch the isolator to the 'ON' position for the outdoor equipment (if applicable)
• Wait for the unit to begin its start-up procedure (approximately 45 seconds)
• Enable the unit by keyboard (see the next chapter for details)
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