CLIMAVENETA MICS FF, Installation, Operating And Service Manual

Page: 18 / 32

MICS / MICS-N
16
English 07/07
Metres
1 5 10 15 20
Model
cPf
cQ
cdp
0
1
1
1 12%
0,985
1,02
1,07
20%
0,98
1,04
1,11 28%
0,974
1,075
1,18
35%
0,97
1,11
1,22 40%
0,965
1,14
1,24
OPERATING LIMITS
ETHYLENE GLYCOL SOLUTIONS
Water and ethylene glycol solutions used as a thermal
vector in the place of water reduce the performance
of the unit. Multiply the performance figures by the
values given in the following table.
0 -5 -10 -15 -20 -25
Freezing point (°C)
Percentage of ethylene glycol by weight
cPf: cooling capacity correction factor
cQ: flow rate correction factor
cdp: pressure drop correction factor
f1 capacity correction factor
fk1 compressor power input correction factor
fx1 total power input correction factor
FOULING FACTORS
The performance data given refer to conditions with
clean evaporator plates (fouling factor=1). For differ-
ent fouling factors, multiply the figures in the perfor-
mance tables by the coefficient given in the following
table.
0072 68 62 48 44 42
0092 68 62 48 44 42
0122 71 65 51 47 45
0152 71 65 51 47 45
0182 71 65 51 47 45
A I
4,4 x 10 -5
0,86 x 10 -4
1,72 x10 -4
-
0,96
0,93
-
0,99
0,98
-
0,99
0,98
Fouling factors
(m 2 °C/W) f1
Evaporator
fk1 fx1fx1
SOUND PRESSURE LEVEL
Reference point: in open field at 1m from the surface of
the unit on the coil side and 1m above the support surfa-
ce.
Thermal head min. max 3÷8
Water circuit pressure (bar) 1÷6
Max. storage temperature (°C) 63
5
10
15
20
25
30
8
48
-10 25 15 5 t
t
-10
-5
-3
-7
5
0
10
20
25
35
23 35 45 40 50 t
t
To operate the
chiller, it is vital to
respect the condi-
tions given in the
table:
COOLING
RECOMMENDED
OPERATING
AREA
HEATING
DELIVERY WATER TEMPERATURE
DELIVERY WATER TEMPERATURE
O
U
T
SI
D
E
A
IR
T
E
M
P
E
R
A
T
U
R
E
O
U
T
SI
D
E
A
IR
T
E
M
P
E
R
A
T
U
R
E