Technical Data - AERMEC VEC Serie Manual De Uso

TECHNICAL DATA

VEC with a 3-row coil
Mod.
Heating
Heating capacity
Electric heater heating capacity
Cooling
Total cooling capacity
Sensible cooling capacity
Water flow rate
Water pressure drops
Air flow rate
Number of fans
 Sound power
Sound power
Water content
Max. motor power
Max. input current
Max. motor power
with electric heater
Input current
with electric heater
3R coil connections
1R coil connections
Power supply
Performance values refer to the following conditions:
 Sound pressure measured in semi-reverberating chamber, 85m
and with reverberation time Tr = 0.5s.
Cooling:
- room air temperature 27°C D.B., 19°C W.B.;
• maximum speed:
- water inlet temperature 7°C; ∆t water 5°C.
• medium and minimum speed:
- water inlet temperature 7°C;
- water flow rate as at maximum speed.
OPERATING ENVIRONMENT
The units are designed for installation in closed environments in conditions
of 'urban', non-marine atmosphere with non-corrosive and non-dusty
characteristics.
Under no circumstances the following concentrations of pollutants in the air, in
which the unit must operate, shall be exceeded:
SO <0,02 ppm
2
H S <0,02 ppm
2
NO,NO <1 ppm
2
NH <6 ppm
3
N O <0,25 ppm
2
The unit should not be installed in locations characterized by the presence of
flammable gases or acidic or alkaline substances.
Otherwise the coils and the internal components of the equipment could suffer
serious and irreparable damage from corrosion.
W (max.)
W (med.)
W (min.)
W
W (max.)
W (med.)
W (min.)
W (max.)
W (med.)
W (min.)
l/h
kPa
3
m /h (max.)
3
m /h (med.)
3
m /h (min.)
dB (A) (max.)
dB (A) (med.)
dB (A) (min.)
dB (A) (max.)
dB (A) (med.)
dB (A) (min.)
l
W
A
W
A
ø
ø
VEC 20 VEC 30
1835 2770
1505 2340
1105 1950
950 1300
1320 1950
1085 1645
805 1370
1085 1535
885 1285
640 1055
227 335
4,6 13,3
247 383
194 309
130 241
1 2
39,5 36,5
33,5 31,5
26,5 26,5
48,0 45,0
42,0 40,0
35,0 35,0
0,79 1,11
25 44
0,12 0,21
975 1344
4,25 5,86
1/2" 1/2"
1/2" 1/2"
230V ~ 50Hz
3
,
Heating:
room air temperature 20°C D.B.;
• maximum speed:
- water inlet temperature 50°C; ∆t water 10°C.
- water flow rate as for cooling operation.
• medium and minimum speed:
- water inlet temperature 50°C;
- water flow rate as at maximum speed.
WARNINGS FOR THE QUALITY OF THE WATER CIRCULATING
IN THE COILS
It is recommended to perform an analysis of the water circulating in the coil
focusing on the research of the possible presence of bacteria (detection of iron
bacteria and micro-organisms that can produce H2S or chemically reduce
sulphates) and on the chemical composition of the water, to prevent corrosion
and fouling inside the tubes.
The water circuit must be supplied and replenished with treated water that does
not exceed the threshold levels indicated below.
Total hardness in mmol/l
-
Chlorides [CL ]
2-
Sulphates [SO ]
4
-
Nitrates [NO ]
3
Dissolved iron
Dissolved oxygen
Carbon dioxide [CO ]
2
Resistivity
pH
IVECLJ 1712 - 5074550_05
VEC 40 VEC 50
3745 4285
3105 3785
2505 2840
1650 1950
2985 3610
2470 3170
1985 2350
2410 2595
1980 2275
1580 1680
514 621
11,3 14,8
511 613
406 529
306 371
2 2
40,0 44,5
34,5 41,5
29,5 34,5
48,5 53,0
43,0 50,0
38,0 43,0
1,48 1,48
57 67
0,28 0,35
1707 2017
7,45 8,83
3/4" 3/4"
1/2" 1/2"
l < mmoll/l < 1,5
< 10 mg/litre
< 30 mg/litre
= 0 mg/litre
< 0,5 mg/litre
4 < [O ] < 9 mg/litre
2
< 30 mg/litre
20 Ohm∙m < Resistivity< 50 Ohm∙m
6,9 < pH < 8
11