Ventilation
The space heater provides heat by releasing and dispersing hot air. An air head is supplied with each unit but it can be replaced by other types of head with two or four openings which allow for flexible tubes in heat distribution. The screws which hold the original outlet in place should be removed and the new outlet should be screwed on in place of the old.
The new head may be connected to new air ducts if the user wishes to satisfy specific needs. In this case and in particular if the diameter and length of the ducts have been changed or if
the number of bends has been modified, air output may vary. Consequently it is very important to check and regulate air output
when any modification is made to air heads or air ducts. In all circumstances you must ensure that:
•The fan motor does not absorb more current than the maximum permitted limit;
•The volume of air flow corresponds to the recommended level. If the heater is equipped with centrifugal fan and if the volume of hot air differs from preset values proceed as follows (Fig. 1):
Fig. 1
1 | 4 |
| |
| 3 |
| 2 |
1)Remove the aspiration grill which is on fan motor side of the unit.
2)Remove the screws (2) from the motor slide.
3)Remove the belt (1).
4)Loosen the bolts (3).
5)Turn the pulley clockwise and
6)Tighten the bolts (3).
7)Put back the aspirations grill
8)Repeat operations from (1) to (7) until the correct volume of air flow has been achieved.
Draft
The evacuation smoke flues shall be made with steel. Efficient combustion and
efficient flue draft. The unit must be connected to the chimney flue in accordance with current legal regulations and in line with the following guidelines:
•The tube which carries the smoke should cover as short a distance as possible and should slant upwards.
•There should be no sharp bends in the tubes and the diameter of the tubes must never be reduced.
•Every heater must have its own chimney.
•Flue draft must at least correspond to the minimum compulsory level in the Technical Specifications.
MAINTENANCE
Warning
The following operations must be carried out by qualified personnel only. Before carrying out any maintenance operation the heater must be disconnected from the mains. Therefore:
•Stop the machine as instructed above
•Turn off the disconnecting switch on the electric switchboard.
•Wait until the heater has cooled.
Cleaning the Heat Exchanger
and the Combustion Chamber
For the heater to operate efficiently the heat exchanger and combustion chamber must be cleaned after a period of prolonged use and more frequently if too much soot builds up. Soot builds up when there is not enough chimney draft, when the fuel is
of very poor quality, when the burner is regulated incorrectly or when the heater is switched on and off too frequently. If the
heater starts vibrating when it is turned on there is probably too much soot. To get at the heat exchanger (1) take off the front panel (3) and then remove the smoke box panel (2) and remove
baffle plates (7). To get at the combustion chamber (4) remove the burner (5).
Cleaning the Fan
Remove any dirt or extraneous material from the mesh of the
aspiration grill (6) and if necessary clean the propeller with an
1 7 3
2
6
5
4
Fig. 3
Cleaning the Burner
For the heater to work efficiently the burner must be serviced regularly by an Authorized Service Technician. All cleaning, servicing and regulation operations must be carried out as indicated in the Burner Instruction Manual.
Warning
After every type of technical maintenance, please verify that the machine starting regularly.
ENERCO GROUP, INC. Indirect Fired Portable Heater | 5 | Operating Instructions and Owner’s Manual |
