RB RBK RBM IMO 172483 03

ManualsBrandsSystemair ManualsAccessories VentilationRBM 50-30/15 400V/3 Duct heate

CONNECTION TO MAINS

FITTING

MAINTENANCE

OVERHEATING

1. The duct heaters are designed to operate on three phase alternating current. See the wiring diagram for

the particular heater and the electrical data on the rating plate placed on the cover of the duct heater.

2. The duct heater must be connected to the mains supply with a fixed installed round cable. The heater

must be equipped with a cable grommet or cable fitting designed for the cable, which ensures that the

electrical protection class of the heater is retained.

3. It must not be possible to switch on the power to the element unless the fan has started earlier or starts

simultaneously.

4. It must not be possible to switch off the power to the fan unless the power to the element has been switched

off earlier or is switched off simultaneously.

5. An all phase breaker with a contact gap of at least 3mm must be included in the fixed installation.

6. The installation must be carried out by an authorised electrician.

7. The duct heaters are designed in accordance with the following standards: SEMKO 111 FA 1982 / EN 60335-1 /

EN 60335-2-30.

8. The duct heater satisfy the requirements of the currently valid EMC standard CENELEC EN 50081-1.

The heaters are CE-marked and EMC-marked.

9. The duct heater is equipped with two overheating cut-outs (one with manual reset) designed to prevent

overheating when the airflow is too low or in the event of a fault in the system.

10. A drawing must be attached inside the fuse box or on the wall of the service room. The drawing shows the

rating of the duct heaters and their location in the building, together with information about the measures

to be taken in the event that the overheat protection cut-out(s) is activated.

11. Since the sensor circuitry, for heaters type RBM, is not galvanic separated from the power supply, care

must be taken when sensors and set value adjuster are connected due to the mains voltage level.

1. The heater is designed for insertion into standard rectangular ducting and is fixed to the ducting with screws,

bolts or a guide joint.

2. The air must flow through the heater in the direction of the arrow (located on the lid of the connection box).

3. The heater can be fitted in either horizontal or vertical ducting. The electrical connection cabinet must be

placed facing sideways. Fitting with the box facing downwards is allowed.NOT

4. The access opening in the heater must be equipped with a fixed mesh or an intake air device which makes it

impossible to touch the element inside.

5. A warning sign must be attached close to the air outlet, stating that the air outlet must not be covered.

6. The distance from (to) the heater to (from) a duct bend, valve, filter, etc., should correspond to at least the

duct diagonal, otherwise there is a risk that the airflow through the heater is uneven which can cause activation

of the overheating cut-out. Example: 400x300mm => min. 500mm.

7. The heaters may be insulated in accordance with valid regulations for ventilation ducting. However, the

insulation material must be incombustible. The cover of the heater must be free from insulation so that the

type plate is visible and the cover can be removed.

8. The distance from the heater's metal casing to any wood or other combustible material must be less

than 100mm.

9. The maximum ambient temperature allowed is 40°C for heaters without built-in regulator (RB and RBK).

10. The maximum ambient temperature allowed is 30°C for heaters with built-in regulator (RBM).

11. The air flow through the heater must have a speed of at least 1. m/s.

12. The maximum output temperature allowed is 50°C.

NOT

No maintenance is required except a periodic functional test.

When the overheating cut-out with manual reset has been activated, the following should be observed:

1. The heater must not be interfered with in any way, such as removal of the cover, except by an authorised .

2. Turn off the mains power.

3. Investigate carefully the reason for activation of the cut-out.

4. When the fault has been eliminated, the cut-out can be reset.

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