ELECTRIC HEATERS MBE0 pages

ELECTRIC HEATERS I njft

MBE Series V8»

Designed to be installed on the fans

discharge side. The minimum air speed

through the heater must be 1,5 m/s.

Maximum air temperature through the

heater: 40°C.

The batteries are fitted with:

- Armoured heating element.

- Double protection circuit to connect to

the battery control circuit by means of

a safety overheat automatic thermostat

connected in series with another safety

overheat manual reset thermostat

(RESET).

- Wiring box IP4-3.

Available temperature sensors in the

duct, ambient temperature sensors

and speed controllers to complete

the installation and to adjust the air

temperature according to every need.

SELECTION EXAMPLE

DATA:

-Airflow: 700 mVh (Q]

- Temp, of supplied air: 5°C

- Temp, of exhausted air: 27°C

ELECTRIC HEATER POWER REQUIRED

P = QxO,36xAT = 700x0,36x22 = 5544 W

HEATER SELECTION MBE-200/50T or

MBE-250/60T (Diagram 2]

The final selection depends on

- Total system pressure drop

- Desired sound level

- Available space

150

ip (Pa;

125

100

75

50

25

0

MBE - Pressure drop Ap (Pa)

8 9 (m/s)

Diagram 1

AT

(°C)

40

30

20

10

0

100

MBE - Air temperature increases AT (°C)

200

300

400 500

1000

2000 3000 4000 5000 6000 m /h

Diagram 2

Electric heaters MBE

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