Omnia UL_R/UL_RI 27-37
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 corrosi
12. DIMENSIONS AND MINIMUM CLEARANCE SPACES
12.1. DIMENSIONS
Model OMNIA UL_R - UL_RI
Height
Width
Depth
Foot height (Accessory "ZU")
Weight
(1)
(1) Standard configuration unit without accessories.
12.2. MINIMUM CLEARANCE SPACES
Model OMNIA UL_R - UL_RI
E
(mm)
F
(mm)
CLEARANCE
G
(mm)
H
(mm)
IUL_R-UL_RIPI. 2307-C6976485_00
27
37
A
(mm)
513
513
B
(mm)
980
1200
C
(mm)
173
173
D
(mm)
93
93
(kg)
20
24
27
37
50
50
93
93
220
220
200
200
E
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
]
-
Sulphates [SO
]
2-
4
Nitrates [NO
]
-
3
Dissolved iron
Dissolved oxygen
Carbon dioxide [CO
]
2
Resistivity
pH
A
D
E
EN
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
B
E
E
F
F
C
H
H
G
G
15