CITERM JUNIOR User manual

MULTIFUEL oil burners
Complyng with
EMC 89/336/EC
LV 73/23/EC
1

1. Introduction……………………………………………………….… 3
2. Safety warnings…………………………………………………… 3
3. General information…………………………………………….. 4
4. Fuels……………………………………………………………………. 4
5. Technical data…………………………………………………….. 5
6. Burner dimensions………………………………………………. 6
7. Boiler location……………………………………………………… 7
8. Function description…………………………………………….. 7
8. Installation…………………………………………………………… 8
9. Flue connection……………………………………………………. 9
10. Safety and switching functions……………………………. 10
11. Adjustments……………………………………………………….... 11
12. Wiring diagram……………………………………………………. 12
13. Troubleshooting………………………………………………….. 13
14. Electrode adjustment………………………………………….. 14
15. Burner pump……………………………………………………….. 15-16
16. Maintenance……………………………………………………….. 17-20
17. Parts drawing………………………………………………………. 21
18. Parts list……………………………………………………............. 22
19. Main construction parts………………………………………. 23
20. Conformity declaration……………………………………….. 24
21. Warranty……………………………………………………………… 25
Read the operation instructions carefully,
prior to installing and commissioning the heater
- All details stated, referring installation and setting into operation must be effected and observed
carefully in order to grant an economic operation free of malfunctions. Technical changes in the
sense of product improvement reserved.
2

!
INTRODUCTION
This burners are for commercial or industrial use.
The burners should be installed by an experienced installer specialized with the installation of oil-
fired appliances.
If you pay attention to the following hints, you will be a part of the big circle of satisfied users of:
CITERM MULTIFUEL OIL BURNERS
PRECAUTIONS
Waste oil may contain many foreign materials. Waste oil may also contain gasoline. Therefore,
specific precautions on the handling and storage of waste oils are to be observed when using,
cleaning and maintaining this heater. Use a screen in a funnel when pouring oil into storage tank to
catch foreign material, i.e., gasket material and sealant fibers, etc.
WARNING: This appliance is not designated for use in hazardous atmospheres containing
chlorinated or halogenated hydrocarbons. Do not expose this unit to rain or moisture.
These burners are designed to provide economic disposal of used oils. Used oil is an inconsistent
fuel and may contain water and/or foreign materials witch may cause the unit to shut down. A
secondary source of heat should always be provided to the building.
WARNING: Do not attempt to burn any grade of gasoline, paint thinners, or non approved fluids.
Adequate ventilation must be provided in any enclosure where storage tanks, pump or accessories
are installed.
Identical to any gas or oil burning appliance, without adequate draft over the fire, the combustion
gases cannot escape the appliance. The flame will lengthen resulting in overheated combustion
chamber. Even if the heated is installed correctly and adequate draft. Burning used oil is similar to
burning wood. A fine gray ash accumulates in the chamber and flue passage. This accumulation of
ash will eventually affect the draft. It is important to remove this ash before the draft is affected.
WARNING: Collect and store your oil continuously and be aware that:
Water and Sludge are Not combustible! New motor oil does NOT burn!
VENTING: Failure to provide proper venting could result in death, serious injury, and/property
damage. Units must be installed with a flue connection and a proper vent to the outside of the
building. Safe operation of any oil-burning equipment requires a properly operating vent system,
correct provision for combustion air, and regular maintenance and inspection.
WARNING: Any cases of consequential damage due to the failure of the space heaters and boilers
during operation will be excluded.
3
WARNING: Turn off electric power to the unit before doing any service or maintenance on the
burner.

4
Multifuel burner must be installed in compliance with a number of regulations and requirements. It
is therefore the duty of the installer to be familiar with all applicable regulations and requirements.
Installation, start-up and maintenance must be performed with care.
Before installing CITERM Multifuel burner, please check the items supplied for completeness.
Scope of supply:
G-Series: Burner, mounting flange, flange seal, 7-th pole connector (plug), 8 meters of flexible oil
line, Filter (optional )
JUNIOR: Burner, mounting flange, flange seal, 7-th pole connector (plug), 5 meters of flexible oil
Line, remote pump with flex oil line and suction floater and strainer
FUNCTIONAL DESCRIPTION
The combustible is pumped from the storage tank by a
Inbuilt pump ( remote pump-JUNIOR ) into the burner tank.
A double floating switch regulates the level in the burner
tank and turn off burner in case of overfilling.
Float switch in overflow tank stops the burner in case of
spilling oil in the overflow tank. A thermostat regulates the oil temperature
in the burner tank and switches on the burner automatically as
soon as the regulated temperature is reached. An additional
overheat thermostat prevents overheating. A special nozzle
draws the fuel, by using the passing compressed air, which
serves as primary air for the combustion, and atomizes it.
The combustion fan delivers the secondary air that is
mixed with the spray mist at the flame ring.
Thereby a perfect combustion and safe operating
are guaranteed.
SIEMENS LOA 24 control box control all parts and monitor
The flame by photo–cell.
COMPRESSED AIR
The minimum supply pressure of 1,5 bar might be controlled by a air pressure regulator.
( see page 7)
FUELS
The universal oil burners are suitable for use with a variety of natural oils, mineral based
oils and synthetic oils. On account of their viscosity, these oils are not in conformity with EN 267 for
oil burners. The burners are, therefore, not licensable. An inspection to determine suitability
for the selected fuel type must be performed by the operator prior to acceptance of
the installation.
The design and degree of protection of the burner make it suitable for operation in enclosed
rooms. When using synthetic oil - min. Mix it with 10% heating oil for start safety.
When use oil from plants - set oil temperature to „max“, because flash point
is high.
When using heating oil EL –set oil temperature to „min“
Overflow tank

5
JUNIOR
Dimensiones

6
Dimensions
Gp & G1p
G2p & G2p+
G3p & G3p+

7
Dimensions
Boiler location
Air & oil flow schematic

8
Installation
Connecting 7-th pin connector to power supply
B4 - can be connected to hour meter
S3 –signal for malfunction
T1 & T2 –room thermostat
F3 –Boiler thermostat
Compressed air inlet
Connect a compressed air line to the pressure regulator
Be shore that air pressure is more then 1,5 bar
The primary airflow should be set using the pressure regulator
according to the required burner output. The information
given in the diagram (page 5) can be used as guide values.
Higher-viscosity fuels require higher air pressures
Oil pump
The oil pumps serve as delivery units, pumping oil
into the burner tank. The atomization of the oil is
not dependent on the oil pressure.
Do not increase oil pressure under any
circumstances!
Connect 4 meters of oil pipe between return port
and storage tank
Connect 1 meter of oil pipe between inlet port
and FAG filter 1”
Connect 3 meters of oil pipe between FAG filter
and storage tank
NEWER install inlet oil pipe to take oil from the
bottom of the storage tank! Best solution is to use
floating suction.
All water, sludge and other impurities are on the
bottom! ( they are more heavy then oil )
Drain water from the storage tank once a month
threw drain tap.

9
Installation
CAUTION: It is recommended that fuel be at a temperature of 5 degrees Celsius or higher when it
enters the pump. At a temperature below 5 degrees Celsius oil becomes more viscous and difficult
to pump. Supply of the burner tank may be reduced, resulting in nuisance shutdowns.
The storage tank should be no closer than 1,5m and no farther then 10m from the burner. If the
thank is lower than the boiler and is more then 5m away from burner, then external pump must be
used.
At the bottom of the supply tank manual valve must be installed (for water and sludge separation)
WARNING: Never install suction line at the bottom of the supply tank! Suction line must be fitted at
20cm higher from bottom.
SUPPLY LINES
Read this section carefully before installing any supply lines. Since a suction line leak is nearly
impossible to find, take your time to assure all connections are leak-free during installation. Supply
lines and fittings are furnished by the installer.
With the vacuum gauge mounted on the pump vacuum port, the gauge will indicate any suction
line restriction, including a dirty filter.
All piping should be protected from possible damage and be rigidly fastened in place in
workmanlike manner.
NOTE: Care must be exercised to ensure leak-free connections.
Flue connection
Important condition for perfect operation of the furnace is a correctly dimensioned flue.
Dimensioning is effected in accordance with DIN 4705 in consideration of DIN 18160 and based on
the boiler and burner outputs.
The effective flue height is counted from burner level.
Select a flue design which minimizes the danger of condensation or of a cold flue inner wall.
For exact adjustment and stabilization of the flue draught we recommend the installation
of a draught limiter.
By this means:
• any draught fluctuations are equalized
• moisture in the flue is largely excluded
• stoppage losses are reduced.
Connection pieces should be introduced
into the flue with a gradient of 30° or 45°
viewed in flow direction.
It is best to provide exhaust gas pipes
with thermal insulation.
Exhaust gas thermometer
For exhaust gas temperature monitoring the heating system should be equipped with an exhaust
gas thermometer.
The higher the exhaust gas temperature, the greater the exhaust gas loss.
Rising exhaust gas temperatures indicate increasing deposits of ash inside of combustion chamber,
that will reduce the degree of combustion efficiency.
In the event of an increasing exhaust gas temperature have the heating installation cleaned (see
picture ) .

10
Safety and switching functions
Safety and switching functions
If a flame failure occurs during operation, the fuel feed shuts off immediately and the system tries a
restart, with preventilation and retried ignition. If no flame results, the control box indicates a fault
after the safety period expires. A restart takes place in all cases following a mains power failure.
The control box shows a fault if the photoelectric cell detects a light source during the
preventilation time, after the safety time.
The control device may only be plugged in or unplugged, if the main switch is in the "OFF" position
or if the 7-pin plug connector is disconnected, because the bottom part of the control device
carries 230 V.
External light on the photo-cell or flame detector must be prevented (e.g. red-hot fireclay lining).
Only then is fault-free operation of the installation ensured.
SIEMENS LOA 24.171B27
t
v1= pre-ignition time + pre-ventilation 13 sec.
t
s= safety period 10 sec.
t
n= post ignition time 20 sec.
Post-ventilation after flame cut-off -
Delay after switching-off fault Approx. 60 sec.
Photo cell ( flame sensor)
SIEMENS QRB1

11
Adjustments
Primary and secondary air adjustments
Primary air pressure regulator
Secondary air regulator
(air dumper ) G-series
Adjusting thermostat
When setting burner for the first time
into operation, fill burner tank with
combustion manual. Normal oil level
is 50mm from the top. If you fill it more,
overflow switch will turn off burner!
Secondary air regulator
(air dumper ) JUNIOR
Burner type Nozzle Primary air Secondary air
JUNIOR 30609-11 0,6 4
JUNIOR DA-2 0,8 5
JUNIOR 30609-49 0,9 7

12
Wiring diagram

13
Troubleshooting

14
Electrode adjustment
It is important to clean electrodes and flame ring monthly to achieve problem-free start.
& JUNIOR

15
Burner pump

16
Burner pump

17
Burner pump cleaning
If there is no enough oil in burner tank,
You must do next:
- Unscrew pump cover screws
- Clean metal strainer (see picture)
- Be careful not to damage gasket
Cleaning oil line
- Unscrew vacuum port screw
- Blow in with compressed air gun
- You will hear bubbles in the storage tank
- Screw back vacuum port screw
- Unscrew bleed port
- Turn the burner on
- When oil arrive, close bleed port.
Maintenance
SUPPLY LINES
Read this section carefully before installing
any supply lines. Since a suction line leak is
nearly impossible to find, take your time to
assure all connections are leak-free during
installation.
Always use liquid Teflon to seal all fittings
On the oil lines.
That is only way to prevent false air
coming into pump.
Always use clamps to tight oil pipes to fittings.

18
Maintenance
Photo-cell (flame sensor) must be cleaned
every 30 days. If the photo-cell is dirty, burner
will start flame and after 4 sec. Control box will
show malfunction (red light will appear)
Be careful to turn the photo cell
to “see” the flame. (see picture)
Depending on the quality of the oil used, we recommend the following maintenance intervals:
Monthly:
• Clean the filter in the supply tank or the unit tank and strainer on the floating suction unit
• Check the oil level in the supply tank to be shore that enough fuel is available.
• Remove and clean the feed pump filter
• Remove sludge and residual water from the supply tank or unit tank
• The quantity can be determined by using water indication paste and a gauging rod
• Clean the photocell
• Clean the ignition electrodes and flame ring and blow out the nozzle with compressed air, check
the spacing between the ignition electrodes (refer to checking dimensions for ignition electrodes
page 14)
•The electrode porcelain insulators must be free from carbon, oil, dirt, cracks. Otherwise, short
circuiting could cause ignition problems.
• Check boiler, if it is dirty, clean it.
Annually (before or after the heating period):
• Carry out monthly maintenance as described
• Clean the heating cartridges in the burner tank
• Clean the ignition electrodes and baffle plate, blow out the nozzle with compressed air and check
the spacing between the ignition electrodes
• Clean the burner tank, supply tank and unit tank thoroughly.
• Clean the boiler and chimney.

19
Remote pump Instalation
1. Floater
2. Strainer
3. Flexible oil line
4. Remote pump
5. Oil in the storage tank
6. Burner
7. Combustion chamber
8. Boiler
Remote pump 130W
Suction unit

20
Maintenance
Be careful when adjusting
double switch!
Normal fuel level is 50mm
from the top of the heater.
Safety contact must trigger
if level raise to 25mm from
the top of the heater.
Ceramic fibre –necessary for all burners when used with
steel boilers with large combustion chamber or cast-iron
boilers with a vertical rear panel in the combustion chamber.
Ceramic fibre will prevent making deposits of unburned oil
at the bottom of the boiler.
Drain tap
It is necessary to open drain tap
To release settled water.