AERMEC TA 09 User Manual

22
The sensitive and total cooling capacities at maximum speed, based on
the temperature of the water entering, on its heat drop and temperature
of the air with dry bulb and wet bulb respectively for sensitive yield and
total yield for standard coil versions are stated in the table.
NB: The yield values marked in bold indicate the nominal value.
Key:
Tw(in) = Inlet water temperature
Tbu = Inlet water temperature with wet bulb
Tbs = Inlet water temperature with dry bulb
Pc [W] = Total cooling capacity
Ps [W] = Sensitive cooling capacity
dt[°C] = water temperature dierence between coil inlet and outlet
OPERATING ENVIRONMENT
The units are designed for installation in closed environments in ‘urban’, non-marine atmosphere conditions that are not corrosive or dusty.
The following concentrations of the air polluting factors where the unit must operate must not be exceeded under any circumstances:
SO
2
<0,02 ppm
H
2
S <0,02 ppm
NO,NO
2
<1 ppm
NH
3
<6 ppm
N
2
O <0,25 ppm
The unit must not be installed in areas characterised by the presence of ammable gases or acidic or alkaline substances.
Otherwise the coils and the internal components of the equipment might undergo serious and permanent damage in terms of corrosion.
WARNINGS FOR THE QUALITY OF WATER CIRCULATING IN THE COILS
We recommend performing an analysis of the water circulating in the coil focused on searching for any bacteria (detection of iron bacteria and
micro-organisms that can produce H2S or chemically reduce sulphates) and the chemical composition of the water itself to prevent corrosion
and encrustations inside the pipes.
The water circuit must be fed and topped-up with treated water that does not exceed the threshold levels shown below.
The unit must not be installed in areas characterised by the presence of ammable gases or acidic or alkaline substances.
Otherwise the coils and the internal components of the equipment might undergo serious and permanent damage in terms of corrosion.
COOLING POWER YIELDED
Total hardness in mmol/l l < mmoll/l < 1.5
Chlorides [CL
-
] < 10 mg/litre
Sulphates [SO
4
2-
] < 30 mg/litre
Nitrates [NO
3
-
] = 0 mg/litre
Dissolved iron < 0.5 mg/litre
Dissolved oxygen 4 < [O2] < 9 mg/litre
Carbon dioxide [CO
2
] < 30 mg/litre
Resistivity 20 Ohm-m < Resistivity < 50 Ohm-m
pH 6.9 < pH < 8

AERMEC TA 09 Specifications

General

Brand	AERMEC
Model	TA 09
Category	Industrial Equipment
Language	English