User manual

11
ENG
“UE BASIC” +0300042EE - rel. 1.0 - 02.12.2009
Fittings provided for the water connections:
Models UE001 to UE018 Models UE025 to UE065
B
A
A
B
C
Key:
A.
supply water inlet
B.
drain water outlet
C.
bottom tank drain water outlet (models UE025 to
UE065 only)
Fig. 2.b
Hydraulic interfaces dimensions
Interfaces dimensions
drain/ ll
dimensions
mm (inc)
UE001 to
UE018
D
72.6 (28.6)
D’
125.4 (49.4)
E
52.6 (20.7)
E’
107.5 (42.3)
Interfaces dimensions
steam outlet and condensed
drain
dimensions
mm (inc)
UE001 to
UE018
F
126.7 (50.0)
F’
224 (88.2)
G
137.9 (54.3)
G’
21.7 (8.6)
Interfaces dimensions
drain/ ll
dimensions
mm (inc)
UE025 to
UE065
I
40 (15.8)
I’
72 (28.3)
I’’
10.2 (4.0)
L
123.2 (48.5)
L’
231.2 (91.0)
L’’
49.1 (19.3)
Interfaces dimensions
steam outlet and condensed
drain
dimen.
mm (inc)
UE025 to
UE045
UE045* to
UE065
M
172 (67.7) 223.7
(88.1)
M’
30.2 (11.9) 30.2 (11.9)
N
181 (71.3) 181 (71.3)
N’
--- 100 (39.4)
N’’
55 (21.7) 61 (24.0)
* 230 Vac models only
2.1 Supply water
Only use mains water with:
pressure between 0.1 and 0.8 MPa (14.5 and 116 PSI), temperature •
between 1 and 40 °C (33.8 and104 °F) and an instant  ow-rate no lower
than the rated  ow of the  ll solenoid valve, the connection is G3/4M
(see par. “11.2 Technical speci cations”);
range hardness 10 to 40 °F (equal to 400 ppm of CaCO•
3
), conductivity:
75 to 1250 µS/cm;
no organic compounds.•
supply water
characteristics
unit of
measure
normal
water
water with low
salt content
min. max. min. max.
Hydrogen ions (pH) 7 8.5 7 8.5
Speci c conductivity at
20°C (σ
R, 20 °C
)
µS/cm 300 1250 75 350
Total dissolved solids (c
R
) mg/l (
1
)(
1
)(
1
)(
1
)
Dry residue at 180°C (R
180
) mg/l (
1
)(
1
)(
1
)(
1
)
Total hardness (TH) mg/l CaCO
3
100
(2)
400 50
(2)
150
Temporary hardness mg/l CaCO
3
60
(3)
300 30
(3)
100
Iron + Manganese mg/l Fe+Mn = 0,2 = 0,2
Chlorides ppm Cl = 30 = 20
Silica mg/l SiO
2
=20 = 20
Residual chlorine mg/l Cl- = 0,2 = 0,2
Calcium sulphate mg/l CaSO
4
= 100 = 60
Metallic impurities mg/l 0 0 0 0
Solvents, thinners,
detergents, lubricants
mg/l 0 0 0 0
Tab. 3.a
(1)
= values depend on the speci c conductivity; in general:
TDS ≅0,93 * σ
R, 20 °C
;
R
180
≅ 0,65 * σ
R, 20 °C
(2)
= not less than 200% of the chloride content in mg/l CL
(3)
= not less than 300% of the chloride content in mg/l CL
-
There is not reliable relationship between hardness and conductivity of
the water
Important:
Important:
do not treat the water with softeners, this may cause the entrainment
•
of foam, a ecting the operation of the unit;
do not add disinfectants or anticorrosive compounds to the water, as •
these are potential irritants;
the use of well water, industrial water or water from cooling circuits •
and, in general, any potentially chemically or bacteriologically
contaminated water is not recommended.
2.2 Drain water
this contains the same substances dissolved in the supply water, •
however in larger quantities;
it may reach a temperature of 100 °C (212 °F);
•
it is not toxic and can be drained into the sewerage system.•