Commissioning; Preliminary Checks; Unit Start-Up; Unit Shutdown - Swegon AQUA Link Installation, Use And Maintenance Manual

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5. COMMISSIONING

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Check that the electric connection has been performed correctly and that all clamps are tightly fastened.

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Check that the voltage of line terminals meets specifications. If voltage is subject to frequent changes, contact our

technical department to select appropriate protections.

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Check that all shut-off valves in the hydraulic circuit are open.

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Check that hydraulic connections have been properly made, in line with the directions reported on the input/output

plates on the machine.

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Check that the hydraulic system has been vented, eliminating any excess air. Then load it gradually, opening the

vent devices in the upper part, which the installer will have taken care to prepare, together with an expansion tank

of adequate capacity.

The start-up of the unit occurs by acting on the main switch on the electric control board bringing it to the on position marked

with "I". Now the unit is ready to operate and will power heating resistors, if available, until the minimum start-up temperature

is reached (for outdoor models only).

The shutdown of the unit occurs by acting on the main switch on the electric control board by bringing it to the off position

marked with "0". Now the unit is no longer able to power any heating resistor available (for outdoor models only).

Seasonal shutdown is made bringing the machine to the off position marked with "0" by acting on the main switch on the

electric control board. It is not necessary to empty the hydraulic circuit unless the percentage of eventual glycol is deemed

insufficient to protect against the risk of ice forming in the hydraulic circuit.

The circuit recharge upon reactivation of the system must be carried out with a mixture of water and ethylene glycol

according to the percentage specified on the data plate.

Rotate the main switch on the electric control board to the off position marked with "0".

If the unit does not start: never change the internal electrical connections as this will

immediately render the warranty null and void.

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