LIBRETTO EC User manual

SPACE HEATERS
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EC 55 - EC 55 DV - EC 85 - EC 85 DV
INSTRUCTIONS

CONTROL BOARD
3
1 COMBUSTION CHAMBER
2 BURNER
3 NOZZLE
4 SOLENOID VALVE
5 DIESEL PUMP
6 OTOR
7 VENTILATOR FAN
ON
ON
0
98
11
65 721 43
10
12
18
ONON
ONON
00
13 14 15 16 17
19
8 FUEL FILTER
9 FUEL CIRCUIT
10 SUPPORT/HANDLE
11 WHEEL
12 FUEL TANK
13 RESET BUTTON WITH CONTROL LAMP
14 MAIN SWITCH
15 ROOM THERMOSTAT PLUG
16 CONTROL LAMP
17 POWER CORD
18 OUTLET CONE
19 IMPUT VOLTAGE SWITCH
This heater must only be used in accordance with the instructions herein. Only a reliable
continuous power supply should be used. If the heater is switched off or unplugged without going
through the cooling down procedure the ducting is likely to be burned and damaged requiring
replacement and or repair to the heater. Burnt ducting and or burnt paintwork results from
operator error, and or unreliable power supply and is not covered by Accidental Damage Waiver
(ADW) or any hire revenue received. Damage due to negligence or operator error is charged post
event from the Deferred Deposit advised on your Proforma Invoice. Please refer to the section
"Stopping the Heater" below for the procedure in finishing with the heater or switched off. The
heater MUST go through a cooling cycle which can only occur if the Stopping the Heater is
followed.

GB
10
GENERAL RECOMMENDATIONS
The hot air generators run on diesel fuel. Those with direct com-
bustion send hot air and the combustion products into the room, while
those with indirect combustion are fitted with a flue to take the fumes
away through the chimney.
Always follow local ordinances and codes when using this heater:
• Read and follow this owner’s manual before using the heater;
• Use only in places free of flammable vapours or high dust con-
tent;
• Never use heater in immediate proximity of flammable materials
(the minimum distance must be 2 m);
• Make sure fire fighting equipment is readily available;
• Make sure sufficient fresh outside air is provided according to
the heater requirements. Direct combustion heaters should only
be used in well vented areas in order to avoid carbon monoxide
poisoning;
• the generator is installed near a chimney to take away the fumes
(see the paragraph “FUMES FLUE POSITIONING DIAGRAM”) and
connected to an electrical switchboard;
• Never block air inlet (rear) or air outlet (front);
• In case of very low temperatures add kerosene to the heating oil;
• Make sure heater is always under surveillance and keep children
and animals away from it;
• Before starting the heater always check free rotation of ventilator;
• Unplug heater when not in use.
OPERATION
Before any attempt of starting the heater is made, check that your
electrical supply conforms to the data on the model plate.
Warning
For models “DV,” check th t the rrows on the volt ge
supply selector key cover (Fig. 1) re pointing to the vol-
t ge v lue required.
Fig. 1
If necess ry:
• remove the cover;
• press deflector (18) to the position required;
• repl ce the protective cover.
Attenzione
To oper te the m chine, must inst ll the ir dispersion
cone (18) on the front of the m chine s shown in the fi-
gure bove (“Oper ting di gr m”).
Warning
M ins must be fitted with thermo-m gnetic differren-
ti l switch.
Unit plug must be linked to socket with m ins
switch.
You can run the generator in manual by setting switch (14) to ON.
The generator can only work automatically when a control device,
such as for example a thermostat or a timer, is connected to the gener-
ator. Connection to the generator is made by removing the socket cover
(15) and inserting the thermostat plug.
To start the machine you must:
• if connected to the thermostat, turn the switch to (ON + );
• if not connected to the thermostat, turn the switch to (ON);
When unit is started for the first time or is started after the oil tank
has been totally emptied, the flow of oil to the burner may be impaired
by air in the circuit. In this case the control box will cut out the heater
and it might be necessary to renew the starting procedure once or
twice by depressing the reset button (13).
Should the heater not start, check that oil tank is full and depress
reset button (13).
Should the heater still not work, please refer to chapter “OB-
SERVED FAULTS, CAUSES AND REMEDIES”.
STOPPING THE HEATER
Set main switch (14) on “0” position or turn thermostat or other
control device on lowest setting.
The flame goes out and the fan continues to work for approx. 90
sec. cooling the combustion chamber.
SAFETY DEVICES
The unit is fitted with an electronic flame control box. In case of
malfunction this box will cut in and stop the heater, at the same time
the pilot lamp in the control box reset button (13) will light up.
Heaters are also equipped with an overheat thermostat safety cut
out which will stop the heater in case of overheating. This thermostat
will reset automatically but you will have to depress button (13) on
control box before being able to restart the heater.
TRANSPORT
Warning
Before m king ny ttempt to rest rt he ter find nd
elimin te re son of overhe ting.
Before heater is moved it must be stopped and unplugged. Before
moving the heater wait till it has totally cooled off and make sure oil
tank cap is securely fixed.
The hot air generators with wheels must be wheeled. The sus-
pended version which has no wheels must be transported with ade-
quate machinery.
MAINTENANCE
Preventive and regular maintenance will ensure a long trouble free
life to your heater.
Warning
Never service he ter while it is plugged in, oper ting or
hot.
Severe burns or electric l shock c n occur.
Every 50 hours of operation: disassemble filter and wash with
clean oil, remove upper body parts and clean inside and ventilator with
compressed air, check correct attachment of H.T. connectors to the
electrodes and check H.T. cables, remove burner assembly, clean and
check electrode settings, adjust according to scheme “REGULATION
OF ELECTRODES”.
IMPORTANT
Before using the heater, read and understand all instructions and follow them carefully. The manufacturer is not responsible for
damages to goods or persons due to improper use of units.
240 V
110 V
240 V
110 V
240 V
110 V
240 V
110 V

11
OBSERVED FAULTS, CAUSES AND REMEDIES
OBSERVED FAULT CAUSE REMEDY
•Check mains
•Check proper positioning and functioning of
•switch
•Check fuse
•Wrong setting of room thermostat or other
•control
•Check correct setting of heater control.
•If thermostat, make sure selected temperature
•is higher than room temperature
• Thermostat or other control defective • Replace control device
• Electrical motor defective • Replace electrical motor
•Electrical motor bearings defective • Replace electrical motor bearings
•Burned out condenser • Replace condenser
•Check connection of H.T. Ieads to electrodes
•and transformer
•Check electrodes setting (see scheme
•“REGULATION OF ELECTRODES”)
•Checkelectrodes for cleanliness
• Replace H.T. transformer
• Flame control box defective • Replace control box
•Photocelldefective • Clean or replace photocell
•Checkstate of motor-pump plastic coupling
•Check fuel line system including fuel filter for
•possible leaks
• Clean or replace oil nozzle
•Checkelectrical connection
• Check thermostat LI
• Clean or replace solenoid
• Make sure air inlet and outlet are free
• Check setting of combustion air flap
• Clean burner disc
• Too much combustion air • Check setting of combustion air flap
•Drain fuel in tank with clean fuel
•Clean oilfilter
•Air leaks in fuel circuit • Check the seals on the ducts and the diesel filter
•Checkpump pressure
• Clean or replace fuel nozzle
• Check pump pressure
• Replace nozzle
• Heater does not stop • Solenoid defective • Replace solenoid coil or complete solenoid
If heater stillnot working properly, please revert to nearest authorized dealer.
•Not enough combustion air
•Fuel contaminated or contains water
•Not enough fuel at burner
• Too much fuel at burner
•Motor starts, heater emits smoke
•No electrical current
•Motor does not start, no ignition
•Electric ignitor defective
•Not enough or no fuel at all at burner
•Motor starts, no ignition or cuts out
•Solenoid defective
GB

CHIMNEY LAY-OUT RECOMMENDATION
DESCRI TION
ENGLISH
A) Minimal 1 m
B) Minimal 1 m
C) The shortest
D) The same or bigger than the smokes outlet diameter of heater
E) Minimal 1 m
1) Anti-wind device provided with the heater
2) Horizontal crossing with minimal upside angle pitch of 5°
3) Chimney 20 x 20 cm of minimal inside measure
4) Chimney anti-explosion flap door
5) External seating wall
6) Chimney ending H shape
N.B. Above recommandation indicative only. Have your installation
checked by local authority.
5
4
A
3
2
D
C
1
B
A
6
2
D
C
1
B
5
E