21
40.019.003 - rev 09 - 2018
IMA
ENGLISH
121102-60. ve r -300 . 910 . 04AM I
English
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5.8 Air flow at the fan of the burner (Fig.
13)
1. Remove the rain cover (A) of the heater
(Fig. 5).
2. Loosen the lock nut (A).
3. Adjust screw (B) of the air inlet according to
the table. Use a hexagonal key.
Higher scale value: increased air volume.
Lower scale value: reduced air volume.
4. Fasten the lock nut.
5. Place the cover again.
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5.9 V-belt replacement (Fig. 14)
1. Remove the cover (A).
2. Lower the motor by using the adjusting nuts
(C).
3. Remove the old V-belts (B).
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Fit new V-belts in the reverse order.
6 TROUBLESHOOTING
6.1 Table troubleshooting
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Heater Air pressure at swivel disc
IMA 61 3.0 ± 0.5
IMA 111 1.0 ± 0.5
IMA 150 3.5 ± 0.5
IMA 200 3.5 ± 0.5
Heater Air quantity setting
IMA 61 3.5 ± 0.5
IMA 111 2.0 ± 0.5
IMA 150 4.5 ± 0.5
IMA 200 3.0 ± 0.5
Heater V-belt tension
Pressure Displacement
IMA 111
1 x 230 V
1.4 kg 2.5 mm
IMA 111
3 x 400 V
2 kg 7.8 mm
IMA 150
1 x 230 V
2.6 kg 9.0 mm
IMA 150
3 x 400 V
2.6 kg 9.0 mm
IMA 200
1 x 230 V
2.6 kg 9.0 mm
IMA 200
3 x 400 V
2.6 kg 9.0 mm
Caution
Tighten the V-belts according to the
table.
Make sure that the electricity is
connected and the fuel tank is full
before you troubleshoot.
Warning
Disconnect the electric power during
repair!
Fault Cause Solution Action
The heater does
not start.
1 The heater has no electric power. Check the power connection. User
2The burner relay is in failure: the
light burns.
Push the reset button of the
burner relay.
User
3 The burner relay has a fault. Replace the burner relay. Dealer
4 The room thermostat setting is
incorrect.
Correct the adjustment. User
5 The room thermostat is defective. Replace the thermostat. Dealer
6 No cap is present on the
thermostat connection.
Fit the cap if a room thermostat is
not used.
User
7 The fuel pump is blocked. Replace the fuel pump. Deal
er
8 The thermostat stopped the
heater (maximum thermostat).
Check (and correct) the airflow.
Reset the thermostat.
User
9 The sensor of the thermostat is
defective. The display shows the
“Sbr” error code.
Replace the sensor. Dealer
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