Exhausto EBC11 Manuale utente
EXHAUSTO 3001414-2000-02-01.fm 1/8
(%&44
GB
EXHAUSTO 3001414-2000-02-01.fm 2/8
1 Product Description __________________________________________________________________________ 2
2 Installation _________________________________________________________________________________ 3
2.1 Operation............................................................................................................................................................ 3
2.2 Electric connection.............................................................................................................................................. 3
2.2.1 Example of connection............................................................................................................................ 4
2.2.2 Example 1 - Voltage start signal from boiler thermostat(Fig. 4) .............................................................. 4
2.2.3 Example 2 – Voltage start signal from timer............................................................................................ 5
2.3 Installation........................................................................................................................................................... 6
2.3.1 Dipswitch-setting ..................................................................................................................................... 6
2.4 Commissioning................................................................................................................................................... 6
3 Fault finding ________________________________________________________________________________ 7
4 Technical data ______________________________________________________________________________ 8
1 Product Description
The EXHAUSTO control system EBC 11 (Fig. 1) is
used in connection with installation of EXHAUSTO
chimney fans to heating appliances. EBC 11 has been
developed for use with 1 or 2-step boilers and water
heaters. The control system can be used with both
atmospheric gas appliances as well as forced draught
appliances for oil and gas.
The control system supervises the fail-safe function. In
case of insufficient chimney draught, the EBC 11 will
shut down the boiler.The control system is developed to
meet BS 5440: Part 1 1990 and BS 6644: 1991 and
other relevant European standards.
Functions
When the boiler thermostat calls for heat, the chimney
fan will immediately start up on full speed. When the
fail-safe supervision confirms sufficient chimney
draught, the boiler burner will be released and the fan
speed will adjust to the pre-set value corresponding to
the appliance running at step 1. (Fig. 1-D).
If the appliance has a 2-step operation, the EBC 11 will
automatically adjust the fan speed to the pre-set value
when the 2nd step on the burner comes in. (Fig. 1-E).
The control has a 12-second built-in delay function to
avoid nuisance cut-outs.
When the boiler stops, the chimney fan stops too. It is
however possible to pre-set a post-purge period of 3
minutes. (Fig. 1-F).
All connections in the control box are connected to
amber light diodes which make supervision and fault
finding easy. (Fig. 1-G).
Extra functions.
The control system consists of 2 extra fail-safe func-
tions which can be selected by dipswitch (Fig. 1-F)
according to local laws and standards.
• MANUAL RESET after fail-safe lock-out.
• PDS-CHECK controls the fail-safe function (pres-
sure differential switch)
Fig. 1-A: Fuse (T5A)
Fig. 1-B: Alarm diode (red)
Fig. 1-C: Reset button
Fig. 1-D: Potentiometer step 1 (low speed)
Fig. 1-E: Potentiometer step 2 (high speed)
Fig. 1-F: Dipswitch options
Fig. 1-G:Diodes (green) for indication of position ON/OFF
1
EXHAUSTO 3001414-2000-02-01.fm 3/8
2 Installation
2.1 Operation
The control system is installed in the boiler room.
2.2 Electric connection
EBC 11 is connected to a supply volt-
age of 230V.
The terminals of the control system are spring-
loaded. For installing of the conductors it is necessary
to use a suitable screwdriver. Fig. 2 shows how the
conductors are installed.
Terminals (Fig. 3)
1 Supply L1 (230V)
2 Supply N
3 Supply PE
4-5 Boiler thermostat 1. Opto coupler (~/-10-230V)
6-7 Boiler thermostat 1. Opto coupler (~/+10-230V)
8 24V DC supply for voltage free contact
9 LK0V DC supply for voltage free contact
10 Boiler thermostat 2. Opto coupler (~/-10-230V)
11 Boiler thermostat 2. Opto coupler (~/+10-230V)
12 24V DC supply for voltage free contact
13 0V DC supply for voltage free contact
14 Boiler relay switch Common (max 230V AC 8A)
15 Boiler relay switch Normally Open (max 230V
AC 8A)
16 PDS - C (Common) pressure differential switch
17 PDS - NC (Normally Closed) pressure differen-
tial switch
18 PDS - NO (Normally Open) pressure differential
switch
19 Chimney fan L1 (max. 3A)
20 Chimney fan Nreg
21 Chimney fan PE
2
3
EXHAUSTO 3001414-2000-02-01.fm 4/8
2.2.1 Example of connection
The control system can be connected to a supply volt-
age as well as a voltage free contact. If in any doubt
regarding the correct connection to the boiler con-
trols, please contact the boiler manufacturer for
advice.
2.2.2 Example 1 - Voltage start signal from boiler ther-
mostat (Fig. 4)
The example shows how a voltage signal (10-230V
AC/DC) from the boiler control is connected to the
EBC 11.
• Power supply to the control is connected over
terminals 1-3
• Connection to the boiler control:
• Step 1: The normal start signal for the
burner (phase) is connected to terminal 6.
• Loop terminals 7 and 14.
• The start signal for the boiler comes on from
terminal 15.
• Connect neutral to terminal 4.
• Step 2: The start signal step 2 for the burner
is connected over terminal 11 and neutral
over terminal 10; neutral can also be a loop
between 5 and 10.
• Chimney fan with built-in fail-safe supervision is
connected over terminals 16-21 according to the
installation instructions enclosed with the chim-
ney fan. If an extern pressure switch (PDS) is
used connect the PDS over terminals 16-18 and
the chimney fan over terminals 19-21.
4
EXHAUSTO 3001414-2000-02-01.fm 5/8
2.2.3 Example 2 – Voltage start signal from timer
(Fig. 5)
The example shows how voltage start signal from the
timer is connected to the EBC 11.
• Power supply to the control is connected over
terminals 1-3.
• Connection to the timer and the boiler control.
• Start signal from the timer (phase) is con-
nected over to terminal 6.
• Loop terminals 7 and 14.
• The start signal for the boiler comes on from
terminal 15.
• Connect neutral from the timer to terminal 4.
Neutral for the boiler can be taken from ter-
minal 5.
• Loop earth between timer and boiler control.
• Chimney fan with built-in fail-safe supervision is
connected over terminals 16-21 according to the
installation instructions enclosed with the chim-
ney fan. If an extern pressure switch (PDS) is
used connect the PDS over terminals 16-18 and
the chimney fan over terminals 19-21.
5
EXHAUSTO 3001414-2000-02-01.fm 6/8
2.3 Installation
Item 2.3.1. must be read before starting installation.
2.3.1 Dipswitch-setting
The dipswitch-setting (Fig. 6-C), requirements must
be made before starting installation.
Factory setting: All OFF.
2.4 Commissioning
EBC 11 must be commissioned in order to obtain the
correct chimney draught.
Please ensure following:
1. Set the potentiometer 1 and 2 to its maximum set-
ting. (Fig. 6-A and 6-B).
2. Set the pressure differential switch (PDS) at mini-
mum. The PDS is typically placed inside the chimney
fan.
3. Start the system on step 1, boiler thermostat 1 (Fig.
6-F lights up).
4. Wait until the PDS is connected (Fig 6-D lights up).
5. Adjust potentiometer 1 (Fig. 6-A) slowly down to
the correct draught. If the fail-safe system indicates
failure, increase the fan speed at the potentiometer 1.
6. Increase slowly the PDS-setting until disengage-
ment of the PDS can be registered (click sound) or
the light (Fig. 6-D) goes out. Register the PDS-value
of disengagement. Set the PDS to 25 Pa below the
registered value of disengagement.
7. 2-step systems. Start step 2 on the system and
adjust potentiometer 2 (Fig. 6-B) slowly down to the
correct draught. Boiler thermostat 1 and 2 must be
connected (Fig. 6-E and Fig. 6-F lights up). If the fail-
safe system indicates failure, increase the fan speed
at the potentiometer 2.
8. Check that the fail-safe system disconnects the
boiler. Failure can be simulated by disassembling the
minus tube on the pressure differential switch or dis-
connect 18 during operation.
9. Check the start-up function after commissioning is
finished.
Dipswitch Name OFF ON
1MANUAL
RESET Automatic reset
after power fai-
lure and draught
failure
Manual reset
after power
failure and
draught failure
2POST
PURGE No post-purge Post-purge
period of 3
minutes
3PDS
CHECK No control, indi-
cating that the
pressure differen-
tial switch has
been in position
NC before star-
ting up
The pressure
differential
switch had to
be in position
NC before
starting up
6
EXHAUSTO 3001414-2000-02-01.fm 7/8
3 Fault finding
Some systems call for a special starting
procedure after fail-safe disconnection. Fol-
low this before pressing the RESET button
(Fig. 7-B).
Observation Type of fault Solution
No light in SUPPLY (Fig. 7-I A blown fuse or a failing power
supply 1) Check the fuse (Fig. 7-J) and the chimney fan
2) Check the wiring
Permanent light in ALARM diode
(Fig. 7-A)
- The chimney fan light is off (FAN
Fig. 7-D)
- (It is only possible when MANUAL
RESET is ON Fig. 7-C)
Grid failure (Power failure) Press the RESET button for one second (Fig. 7-B) -
PLEASE SEE THE WARNING.
Permanent light in ALARM diode
(Fig. 7-A)
- The chimney fan light is on (FAN
Fig. 7-D)
Failing chimney draught 1) If PDS light is on (Fig. 7-E), press the RESET but-
ton for one second (Fig. 7-B) - PLEASE SEE THE
WARNING.
2) If PDS light is off (Fig. 7-E), check the repair switch
to the chimney fan
3) Check the flue, chimney and chimney fan for block-
ing
4) Check the commissioning according to item 2.4.
Flashing ALARM diode (Fig. 7-A)
- (It is only possible when PDS
CHECK is ON Fig. 7-C)
Failure in fail-safe supervision
(PDS CHECK) 1) Check the setting of the fail-safe system. The natu-
ral draught can prevent disconnection. Alternatively
deselect PDS-CHECK on dipswitch Fig. 7-C
2) Check the connection to the fail-safe system
3) Check the change function of the fail-safe system
7
EXHAUSTO 3001414-2000-02-01.fm 8/8
4 Technical data
Height x width x depth : 125 mm x 175 mm x 75 mm
Degree of protection/material : IP54/ABS
Supply voltage : 230V +/-10%
Fuse : T5A
Ambient temperature : -20°C - +50°C
Boiler thermostat input : 10-230V AC/DC
Boiler output relay : max. 8A/230V
Chimney fan output (AC3) : max. 3A/230V
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel.: +45 6566 1234
Fax: +45 6566 1110
E-mail: [email protected]
www.exhausto.com
EXHAUSTO GmbH
Am Ockenheimer Graben 40
D-55411 Bingen-Kempten
Tel.: +49 6721 9178-0
Fax: +49 6721 9178-99
E-mail: [email protected]
www.exhausto.de
EXHAUSTO NORGE A/S
Enebakkveien 117
N-0680 Oslo
Tel.: +47 2268 9006
Fax: +47 2268 0384
E-mail: [email protected]
www.exhausto.com
EXHAUSTO Ltd.
4/5 Centurion Court,
Brick Close, Kiln Farm
GB-Milton Keynes MK11 3JB
Tel.: +44 1908 261196
Fax: +44 1908 261186
E-mail: [email protected]
EXHAUSTO AB
Verkstadgatan 13
S-542 22 Mariestad
Tel.: +46 501 13750
Fax: +46 501 12500
E-mail: [email protected]
www.exhausto.com
EXHAUSTO Inc.
8601 Dunwoody Place
Suite 450
Atlanta, GA 30350 USA
Tel.: +1 770 587 3238
Fax: +1 770 587 4731
E-mail: [email protected]
www.exhausto.com
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