Rev. 1 02-2021
24
MTEC.IR.WU.GB-1 Use and Maintenance Manual IR.WU series English
Emibyte IR.WU
Water chilled Close Control Units
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pS = Suspended solids particels logarithm, expressed in ppm and measured at the temperature of the water on the point of precipitation
pAlc = logarithm of the alkalinity factor expressed in ppm CaC03
pCa = logarithm to the limestone hardness expressed in ppm CaC03
CWith the purpose to avoid corrosive phenomena and any deposit is recommended to:
• Empty the evaporator before any maintenance operation;
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• Not clean with aggressive detergents; Before to any detergent use be careful and verify the copper and any other material the uniti s
composed compatibility;
• During the winter stops be careful tu well empty the exchanger
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-
sidering the system volume and the concentration to realize.
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indications:
• Open all the vent valves present on circuit;
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valve suitable with temperature and operation mode of the unit;
• Start to charge the water in the system;
• Close all the air discharge valve present on the circuit when begins to come out water;
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It is reccomended to mantain the water pressure between 1,5 and 3,5 bar; It is necessary equip the system with
one or more membran expansion vessels with adequate volume and pressure.
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polluting; it must be collect for disposal or re-use.
3.14 System empty
• Before the system empty it is necessary to put the main switch on OFF position.
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• Open the unit external shut-off and all the system and terminals vent valves;