Ambi-Rad OFSU70 Istruzioni per l'installazione, la messa in servizio e la manutenzione - Pagina 5

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2 Product selection

All heaters have been tested and approved
to allow heater selection to be dependant
upon the output and the efficiency needed.
Technical data
The air heaters have been designed to offer
a solution for a wide choice of commercial
and industrial projects. Outputs range from
32 kW to 100 kW.
Heaters are supplied with a combustion
chamber manufactured from high quality
heat resisting stainless steel AISI 430. The
combustion chamber has been designed for
maximum surface area and volume to give
high efficiency.
The special stainless steel heat exchanger
enables high efficiency. It has also been
designed to have minimal resistance to air
flow through the unit. The units are
constructed from galvanised steel panels.
Standard finish is white epoxy painted.
Air flow system
It is possible to reverse the air flow
modifying the position of the adjustable
warm air discharge louvre and the axial fan.
OFSU70/100 models can work with crossed
air flow. (100kW model has three fans).
In this condition the air flow is reduced by
approximately 5%. This solution is ideal
when the heater is to be installed in the
middle of the space to be heated and allows
the warm air to discharge to the front and
to the rear of the unit heater.
U.M
Nominal
power
kW
Nominal
capacity
kW
Efficiency
%
Flue gas pressure drop
Pa
3
Air flow 15˚C
m
/h
Temperature rise
˚C
Air throw
m
Electrical supply
V
Absorbed electrical
power in kW and
number of motors
Dimensional data and weight
Type
OFSU32
A
723
B
610
C
120
Gross Weight
(Inc burner)
85kg
OFSU32
OFSU40
Min
Max
Min
Max
30.0
34.5
32.5
44.0
27.9
31.6
30.4
39.7
93.0
91.6
93.5
90.2
10
15
11
22
3100
3500
25.0
28.3
24.1
31.5
12
15
230/1~/50
230/1~/50
1 x 0.33
1 x 0.70
OFSU40
723
610
120
91kg
OFSU70
OFSU100
Min
Max
Min
Max
60.0
77.7
80.0
110.0
55.9
70.2
74.5
99
93.2
90.3
93.1
90.3
20
25
21
32
6200
9500
25.0
31.4
21.8
29
18
22
230/1~/50
230/1~/50
2 x 0.33
2 x 0.33
1 x 0.70
OFSU70
OFSU100
1303
1883
1190
1770
150
180
137kg
177kg
3