elco VB 2.** VD Series, VB 2.66 VD, VB 2.54 VD, VB 2.45 VD, VB 2.38 VD Operating Instructions Manual
...
en
Operating instructions
VB 2.. VD
de, fr................................. 4200 1046 8002
it, nl.................................. 4200 1046 8102
en..................................... 4200 1046 8202
......................................... 4200 1068 3900
......................................... 420 110 084 400
de, fr, it, nl, en................. 4200 1046 7903
For specialist installation engineers
Fuel oil burners
02/2016 - Art. Nr. 4200 1046 8202A
Overview
Contents
General information Contents ...............................................................................................................................................2
Operation Operating mode, safety function...........................................................................................................4
Assembly Burner assembly, burner installation position ....................................................................................11
Commissioning
Servicing Maintenance .................................................................................................................................25-26
Important information
VB2.. VD blue-flame burners are
designed for the low-pollution
combustion of extra light fuel oil in
accordance with the following standards:
AT: ÖNORM C1109: standard and low
sulphur
BE: NBN T52.716: standard and NBN
EN 590: low sulphur
CH: SN 181160-2: standard and low
sulphur
DE: DIN 51603-1 : standard and low
sulphur
DINV 51603-6 ELA BIO 10
The design and function of the burners
meet standard EN 267.
Assembly, start-up and maintenance
must only be carried out by authorised
specialists and all applicable guidelines
and regulations complied with. This
device is not designed for use by
individuals (including children) whose
physical, sensory, or mental abilities are
reduced, or by persons lacking in
experience and/or knowledge, unless
supervised by a person responsible for
their safety or if they are following the
latter's recommendations concerning the
use of the device.
Children must be supervised to ensure
they do not play with the device.
Burner description
VB2.. VD blue-flame burners are 2-stage
monoblock type devices. The special
design of the burner head with internal
recirculation of the combustion gases
provides highly efficient, low-polluting
combustion. According to tests as
defined by EN267, the values produced
comply with emissions class 3, the most
stringent standard, and with the
requirements of following national
legislation relating to the environment:
AT: KFA 1995, FAV 1997
CH: OPAir 2005
DE: 1.BImSchV
Important information............................................................................................................................2
Burner description.................................................................................................................................3
Automatic combustion control unit.....................................................................................................5-7
Terminal allocation chart, connection socket .....................................................................................8-9
Fuel oil burner pump.......................................................................................................................... 10
Electrical connection/oil connection ...................................................................................................12
Checks before commissioning, setting data ..................................................................................... 13
checking the combustion components,
recirculation ........................................................................................................................................14
Fuel oil pressure regulation, air regulation..........................................................................................15
Adjusting burner output..................................................................................................................16-24
Troubleshooting ..................................................................................................................................27
Fault diagnosis menu,
Operating statistics menu ..............................................................................................................28-29
They are suitable for use with all heat
generators complying with standard EN
303 or for use by hot air generators
complying with DIN 4794 or DIN 30697
within their respective performance
range. Any other type of application
requires the approval of ELCO.
Packaging
The following are included in the burner
packaging:
1 connecting flange with insulating
gasket
1 bag containing fittings
1 bag containing technical
documentation
1 blast tube
1 setting template
The following standards should be
observed in order to ensure safe,
environmentally sound and energyefficient operation:
EN 226
Connection of fuel oil and gas burners
with blast air to the heat generator
EN 60335-1, -2-102
Safety of electrical equipment for
domestic use
Place of installation
The burner must not be operated in
rooms with aggressive vapours (e.g. hair
spray, tetrachloroethylene, carbon
tetrachloride), high levels of dust or high
air humidity (e.g. laundry rooms).
If no connection to an air exhaust system
is provided for the air supply, a supply air
inlet with the specifications set out below
must installed:
DE: up to 50 kW: 150 cm
for every further kW: + 2.0cm
CH: Calorific power [kW] x 6 = … cm2;
but at least 200 cm
Variations may arise as a result of local
regulations.
2
2
2
We cannot be held liable for any
damage caused by the following
situations:
- unauthorised use
- incorrect installation and/or repair on
the part of the buyer or any third party,
including the fitting of non-original
parts.
Final delivery and instructions for use
The firing system fitter must supply the
operator of the system with operating
and maintenance instructions on or
before final delivery. These instructions
should be displayed in a prominent
location at the point of installation of the
heat generator. They should include the
address and telephone number of the
nearest customer service centre.
Advice to the user
The system should be inspected by a
specialist at least once a year.
Depending on the type of installation,
shorter maintenance intervals may be
necessary! The system operator is
advised to take out a maintenance
contract to guarantee regular servicing.
02/2016 - Art. Nr. 4200 1046 8202A2
en
Overview
Burner description
A1 Control and safety unit
A4 Display
B3 Flame detector
M1 Fan motor
M2 Pump motor
T1 Igniter
Y Adjusting screw dimension Y
(recirculation)
4 Nozzle line tube
5 Base plate
8 Burner pipe
8.1 Flame tube (supplied disassembled)
10 7-pin connector (hidden)
10.1 4 pin connector
18 Cover
19 Release knob
20 Hood securing screw
102 Fuel oil pump
105 Fuel oil hoses
113 Silencer
Y1, Y5Solenoid valves
02/2016 - Art. Nr. 4200 1046 8202A 3
Operation
Operation
Safety function
Heating function
If the system demands heat, the preheater is switched on first.
When the oil preheating temperature is
reached, a thermostat in the pre-heater
activates the program sequence. The
heating time with cold start is
approximately 2 minutes.
Starting the burner
- If heat is requested by the boiler
regulator, the automatic oil
combustion control unit starts the
program sequence.
- The fan motor starts, air pressure is
checked.
- Pre-ventilation
- The pump motor and ignition are on.
- Solenoid valve 6 opens, the pressure
is regulated via the pressure controller
5.
- Flame formation.
- The ignition is switched off.
Burner mode, control between partial
and full load
The burner is equipped with a nozzle
and operates at two different fuel oil
pressures (partial load and full load).
These pressures are controlled
independently by two regulators fitted in
the pump. If an increase in load is
requested by the boiler regulator, the
burner switches from partial load mode
to full load mode after a delay of
approximately 13 seconds.
- The fan motor 10 reaches the speed
for full load mode.
- If the fan speed (quantity of air) is
adjustable, the solenoid valve 3
closes, the partial load pressure
controller 5 is deactivated and the full
load pressure controller 2 regulates
the pressure.
- The fan motor continues to run at the
maximum load speed, and maximum
load mode is active.
Safety function
A lockout occurs on the device:
- if a flame signal is present during preventilation (stray light monitoring)
- if, when the burner starts up (fuel
release), no flame is produced after 5
seconds (safety time)
- if no flame is produced in the event of
flame failure during operation after
repeated unsuccessful attempts to run
the program.
A safety shutdown is indicated by the
fault indicator lamp lighting up; the fault
can then be acknowledged by pressing
the reset button after the cause of the
fault has been rectified.
Schematic diagram
1 Two-stage pump
2 Oil pressure regulator, full load
3 Solenoid valve, full load (NO)
4Pump
5 Oil pressure regulator, partial load
6 Solenoid valve (NC)
7 Nozzle line
8 Burner pipe
9Flame tube
10 Blower motor
11 Pump motor
12 Oil preheating
02/2016 - Art. Nr. 4200 1046 8202A4
en
Operation
TCH 24x control unit
The TCH 24x fuel oil automatic
combustion control and safety unit
controls and monitors the forced draught
burner. The microprocessor-controlled
program sequence ensures maximum
stability of time periods, regardless of
fluctuations in the power supply or
ambient temperature. The control and
safety unit is equipped with a device to
protect against the effects of brownouts.
Whenever the supply voltage drops below
its rated minimum level (< 185V), the
control unit shuts down - even in the
absence of a malfunction signal. The
control unit switches itself back on again
once the voltage has returned to normal
levels (> 195V).
Pressing and
holding the
unlocking button
for...
... 1 second ... the control and
... 2 seconds ... the control and
... 9 seconds ... Deleting the control
… causes ….
safety unit to unlock.
safety unit to lock
unit statistics
Locking and unlocking
The control unit can be locked using the
release knob or unlocked as long as
the unit is powered on.
Always switch off the power supply
before installing or removing the
control unit. Do not attempt to
open or carry out repairs on the
control unit.
Moves the cursor upwards
Moves the cursor downwards
Increases the marked value
Reduces the marked value
Modifies/confirms the value shown
Unlocks the control and safety unit
Red LED (flashes if failure occurs)
Display Description Display Description
Waiting for boiler heating
request
Waits for pre-heater
The ventilation speed increases
until it reaches the setting value
for pre-ventilation
Pre-ventilation and pre-ignition
The ventilation speed
decreases until it reaches the
setting value for the ignition
position
Oil valve is opened,
safety time
Flame is present, awaiting
authorisation of regulation
Burner in operation. The lower
line shows the strength of the
flame signal and the operating
time of the burner
02/2016 - Art. Nr. 4200 1046 8202A 5
Operation
TCH 24x control unit
In parallel with its control and safety functions,
the TCH 24x control unit allows the following
to be set:
- the ventilation speed during ignition
- the 1st stage ventilation speed
- the ventilation speed by opening the 2nd
stage valve (for switching from 1st to 2nd
stage)
- the 2nd stage ventilation speed
- the ventilation speed by closing the 2nd
stage valve (for switching from 2nd to 1st
stage)
• Ventilation speed
setting menu in the
setting points
• Ventilation speed
display menu in the
setting points
The parameters for the control and safety unit
are set using the display and 5 keys.
Operating values are shown in real time on
the display.
Pressing the keys gives access to 9 menus:
• Industrial applications
setting menu*
• Manual control menu*
• Fault diagnosis menu
• Operating statistics
menu
• Setting/modification
menu for standard
configurations*
• Configuration mode
menu*
• Screen brightness and
contrast setting menu
* In these menus, it is
possible to adjust the
control unit's standard
configurations. These
are pre-set in the
factory. No
modifications may be
carried out on-site
without prior
consultation with ELCO.
The access code and
the setting setpoints for
these menus are
available on request.
02/2016 - Art. Nr. 4200 1046 8202A6
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Operation
TCH 24x control unit
Program sequence phases:
1: No voltage
2: Powering up, no heating request
3: Heating request, Verification of fan
zero speed, pre-heater on
4: Checking the rest status of the air
pressure switch
5: Fan speed is increased to the pre-
ventilation position
6: Checking the air pressure
7: Pre-ventilation
8: The fan speed is decreased to the
ignition position, pre-ignition and
switching on of the pump motor
9: Stray light monitoring
10: Burner start-up: opening of the 1st
stage solenoid valve, flame
formation
11: Stabilisation time, the fan speed is
increased to the 1st stage
12: Awaiting authorisation for
regulation
13: The fan speed is increased to the
2nd stage valve opening value
14: Operation in 2nd stage
15: The fan speed is decreased to the
2nd stage valve closing value
16: Operation in 1st stage
17: Regulation cut-out, fan speed is
decreased to the post-ventilation
position
18: Post-ventilation time
19 : Stray light and air pressure
monitoring at the end of the post-
ventilation time
20: The fan speed is reduced to 0
- Awaiting a new heating request
02/2016 - Art. Nr. 4200 1046 8202A 7
Operation
Earth
Pre-heater
Flame
monitor
Fault
display
Air
pressure
switch
Ignition
Blower motor
2nd stage
solenoid valve
Connector
Terminal
Terminal
Connector
Remote
unlocking
L1 power
supply
1st stage
solenoid valve
3rd stage
solenoid valve
2nd stage
thermostat
Heating
request
Earth
Fuel oil
pump motor
Terminal allocation chart
230 Volt connection
Terminal Description Connector Terminal Description Connector
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Burner motor live
Earth
Neutral conductor
1st stage solenoid valve live
Earth
Neutral conductor
2nd stage solenoid valve live
Earth
Neutral conductor
3rd stage solenoid valve live
Earth
Neutral conductor
Ignition transformer live
Earth
Neutral conductor
2nd stage thermostat live (T6)
Signal T7
Signal T8
1st stage thermostat live (T1)
Heating request signal (option T2)
T6/7/8
19
4
1
2
3
5
1
Flame detector signal
2
Neutral conductor
3
Live
4
Live
5
Air pressure switch signal
6
Live
7
Remote unlocking signal
8
Neutral conductor
9
Malfunction signal live
10
Live
11
Pre-heater/authorisation contact
12
Earth
13
Neutral conductor
14
Live L1
15
Earth
16
Neutral conductor
17
18
19
20
21
Earth
Earth
Fuel oil pump live
Earth
Neutral conductor
11
10
20
21
25
6
35
02/2016 - Art. Nr. 4200 1046 8202A8
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Display/PC interface
Fan motor speed regulation control
Connector
Terminal
Terminal
Connector
Operation
Terminal allocation chart
Low voltage connections
Terminal Description Connector Terminal Description Connector
1
Not used
2
Not used
3
Not used
1
Not used
2
Not used
3
Not used
4
Not used
5
Not used
6
Not used
1
26
3
4
Display or PC interface
5
6
7
8
17
27
28
29
16
1
Not used
2
Not used
1
2
3
1
Fan motor speed regulation control
2
3
4
5
31
30
15
02/2016 - Art. Nr. 4200 1046 8202A 9
Operation
Pump
This is a gear pump. It must be
connected as a two-line pump via a
bleed filter. For the connection of the fuel
oil tank and the bleed filter, it is better to
use the single line option. An intake filter
and two oil pressure regulators are
integrated in the pump. Pressure
gauges for pressure measurements 4
and negative pressure measurements 5
must be connected before the
equipment is commissioned.
1 Return connection G1/4
2 Vacuum connection G1/4
3 Nozzle supply line connection G1/8
4 Pressure gauge connector
5 Vacuum gauge connector
8 1st stage pressure setting
9 2nd stage pressure setting
Y1 Solenoid valve, 1st stage
Y5 Solenoid valve, 2nd stage
02/2016 - Art. Nr. 4200 1046 8202A10
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