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Economizer is a counterflow heat exchanger which utilizes residual heat of flue gases for air heating.
It consists of the heat exchanger itself, air fan and flange on the heated air exit. The internal heat transfer
surface of the exchanger is made of aluminium, the external surface is made of galvanized steel plate.
To the external surface of heat exchanger, there are connected air fan and air output neck with flange
130 by 130 mm. The flange is used for connecting a grille with adjustable blades to blow the heated air
into the heated room or for connecting an air-duct transferring the heated air into another room. The
internal heat transfer surface has a standard DN100 (125) mm socket for connection to flue gases
output of HELIOS tube heater and DN 100 (125) mm neck for connection to the socket of condensate
trap and further to flue system.
There are three models:
AWTM 100/2000 with 2 m length of heat exchanger.
AWTM 100/4000 with 4 m length of heat exchanger.
AWTM 125/4000 with 4 m length of heat exchanger.
Economizer is placed in flue system immediately after the tube heater.
Electric supply of the fan can be from connector on the burner box or by cable from mains 230V/50Hz.
When the heater is started, the flue gases flow inside the internal heat transfer surface and heat it up.
As soon as the surface temperature reaches 42°C, the air fan is started and blows the air between the
internal heat transfer surface and external casing, the heated air goes out via the neck with connected
grille or duct. If the temperature of internal surface decreases bellow 30°C, the air fan stops.
Type
Helios 10+
Helios 20+
Helios 30+
Helios 40+
Helios 50+
AWTM 100/2000
5 Pa
7 Pa
8 Pa
9 Pa
–
AWTM 100/4000
9 Pa
13 Pa
15 Pa
18 Pa
–
AWTM 125/4000
–
–
–
–
18 Pa
Type
Available pressure [Pa]
AWTM 100/2000
45 Pa
AWTM 100/4000
35 Pa
AWTM 125/4000
35 Pa
9
6
8
7
5
1 Casing
3 Air intake
5 Electric terminal box
7 Warm air output
9 Hanging
point
2 Flue output
4 Air fan
6 Flue input
8 Socket DN100
2
1
4
3
Содержание HELIOS
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