IOM SYSAQUA 20 40 (IOM AQA 04 N 4GB)

English
43SYSAQUA
Fin edges are sharp and can cause injury hazard. Avoid contact with them.
Caution
Avoid damaging the aluminium ns during cleaning. Never use pressurized water without a wide
diffuser. Concentrated and/or rotating water jets are strictly forbidden.
Caution
The manufacturer waives any liability for damage of a plate exchanger caused by water freezing
of water contained inside does not engage the responsibility of the manufacturer with respect to
this incident (low winter temperature or water start temperature below 5°C in summer mode).
Caution
Clean the air exchanger using a special product for aluminium-copper coils and rinse with water. Do not use
hot water nor steam, as these may increase the refrigerating uid's pressure.
17.3.1.4. AIR COOLED CONDENSER
Condenser coils are composed of copper tubes and aluminium ns. In case of leaks due to damage or
shock, the coils must be repaired by one of the authorized Support Centres. To guarantee the best possible
operation of the condenser bank, the condenser surface must be maintained as clean as possible, and it
must be void of foreign materials (leaves, wires, insects, slag, etc.). A dirty coil will see its absorbed electrical
power increase. In addition, condensation pressure could increase and trigger a high pressure alarm.
17.3.2. HYDRAULIC CIRCUIT
17.3.2.1. PLATE HEAT EXCHANGEUR
Verify the pressure difference between the inlet and the outlet of the heat plate exchanger. If the water
pressure and ow rate values do not correspond to the pressure loss curves available in § HYDRAULIC
PUMPS CURVES, page XI , the heat plate exchanger may be foul up. To clean it, use a non corrosive
solvent to remove calcareous deposits. The equipment used for the external water ow, the quantity of
solvent and safety measures applied must be approved by the company supplying the cleaning products, or
the one performing these operations.
In winter, after a general stoppage of the installation or a regulation malfunction, the water contained in the
hydraulic circuit may start freezing.
To prevent any problems if the hydraulic circuit is not glycolated, it is recommended to fully drain any circuits
not used and to pressurize them with nitrogen or protect them by adding an anti-freeze solution or other
measures.
The concentration of anti-freeze solution must be regularly and carefully checked before each winter
season.
17.3.3. WINTER PROTECTION
CAUTION
BEFORE CARRYING OUT ANY OPERATION ON THE EQUIPMENT, CHECK
THAT THE ELECTRICAL POWER SUPPLY IS SWITCHED OFF AND THAT IT
CANNOT BE SWITCHED ON INADVERTENTLY.
IT IS RECOMMENDED THAT THE DISCONNECT SWITCH BE PADLOCKED