Exodraft EBC24 Series Manuale utente
Installation and operation manual
Job name: _____________________________________
Installer: ______________________________________
Installation date: _______________________________
USA
CAN
Product information Chapters 1 + 2
Mechanical installation Chapter 3
Electrical installation Chapter 4
Start up and conguration Chapter 5
Maintenance and troubleshooting Chapter 6
READ AND SAVE THESE INSTRUCTIONS!
EBC24 modulating fan control
Distributor contact information:
ENERVEX Inc. • T: 800.255.2923
3120065 EBC24 US 20170329
Symbol legend
The following terms are used throughout this manual to bring attention to the presence of potential hazards
or to important information concerning the product.
DANGER
Indicates an imminent hazardous situation which,
if not avoided, will result in death, serious injury or
substantial property damage.
CAUTION
Indicates an imminent hazardous situation which, if
not avoided, may result in personal injury or property
damage.
TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:
1. Use this unit in the manner intended by the manufacturer. If
you have questions, contact the manufacturer’s distributor at the
address or telephone number listed on the front of the manual.
2. Before servicing or cleaning the unit, switch o at service panel
and lock service panel to prevent power from being switched on
accidentally.
3. Installation work and electrical wiring must be done by a quali-
ed person(s) in accordance with applicable codes and standards.
4. Follow the appliance manufacturer’s guidelines and safety
standards such as those published by the National Fire Protection
Association (NFPA), and the American Society for Heating, Refrig-
eration and Air Conditioning Engineers (ASHRAE), and the local
code authorities.
5. This unit must be grounded.
How to use this manual
This installation manual does not contain any system design
documentation. System design documentation is available from
ENERVEX.
Accessories and variable frequency drives are not covered by this
manual. Please refer to these component’s individual manuals.
Contents
1. Product information
1.1 Function ........................................................................3
1.2 Shipping ........................................................................3
1.3 Warranty ........................................................................3
2. Specications
2.1 Dimensions and capacities ......................................................4
3. Mechanical installation
3.1 Location ........................................................................5
3.2 Mounting of control ............................................................5
3.3 Mounting of transducer .........................................................6
3.4 Mounting of stack probe ........................................................6
3.5 Connecting transducer to stack probe ...........................................6
4. Electrical installation
4.1 General .........................................................................7
4.2 Continuous chimney fan operation ..............................................8
4.3 Intermittent chimney fan operation (120 V) ......................................9
4.4 Connection to a variable frequency drive .......................................11
4.5 Integrated Proven Draft Switch with external Proven Draft Switch backup ........12
5. Startup and conguration
5.1 General ........................................................................13
5.5 Basic control set-up ............................................................13
5.6 Detailed control programming .................................................14
6. Settings and troubleshooting
6.1 Troubleshooting ...............................................................15
6.2 Settings ........................................................................16
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3120065 EBC24 US 20170329
1. Product information
1.1 Function
Use The exodraft EBC24 is a Modulating Fan Control used with up to two appliances to monitor and
maintain a constant draft or pressure in a chimney or duct. This is achieved by modulating the speed
of a chimney fan or ventilator. The EBC24 can be used with models RSV, BESF and BESB. It can control
the fan speed directly or via a Variable Frequency Drive (VFD).
The EBC24 is typically used to control the draft in systems requiring a single boiler or water heater.
Function The control monitors the draft in a chimney system via connection to a pressure sensor (XTP) at-
tached to the chimney, and maintains it by modulating the fan speed. The control has an integrated
safety system that assures the heating appliance is shut down in case of fan failure or control failure.
The use of the EBC24 is not restricted to any type of fuel or type of heating appliance. When the ap-
pliance thermostat closes and calls for heat, the control will send maximum voltage to the chimney
fan or VFD. When the necessary draft is achieved, the control will allow boiler ring and regulate the
voltage to the fan or VFD, so the required draft is maintained (the value can be viewed in the display).
In case of insucient draft, the control will assure the burner will be shut down after 15 seconds (Can
be adjusted). When the appliance has satised the thermostat and shuts down, the control will turn
o the fan.
The control can be used in one of two ways:
• Interlocked with the appliance to pre-purge the chimney prior to boiler start-up and post-purge the
chimney for a variable time after boiler shut down.
• Set to run the fan continuously.
Other functions The control has an integrated safety function. It can be operated with either a manual reset function
(reset button) or an automatic reset function. All terminal connections are monitored by LED’s for
easy service and troubleshooting.
Listings EBC24 is UL listed to the Standard for Industrial Control Equipment, UL60947-4-1 and CSA C22.2 No.
14-10.
1.2 Shipping
The EBC24 standard packing list
yEBC24 control unit
yPressure transducer (XTP)
ySilicone tubing
yStack probe
If other components are shipped, these will appear as separate items on the shipment packing list.
1.3 Warranty
Complete warranty conditions are available from ENERVEX, Inc.
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3120065 EBC24 US 20170329
2. Specications
2.1 Dimensions and capacities
exodraft EBC24 Control
Power supply V 1x120 VAC / 60 Hz
Fuse size Control/Motor A 0.4T/6.3T /250V(JDYX2/8)
Max. Motor load kW/hp 0.35/0.5
Operating temperature °F/°C -4 to 122/-20 to 50
Range of operation inWC/Pa 0-0.6/0-150
Tolerance inWC/Pa 0.01/3+/-10%
+24V Supply mA 100 Max.
Control signal VFD VDC/mA 0-10 / Max. 10
Control and Alarm relay Max 120 VAC/4A AC1 - 24 VDC/2A DC1
Boiler Inputs 10-48 VDC / 10-132 VAC
VFD Relay Max 120 VAC/2A AC1 - 24VDC/2A DC1
Output TRIAC VAC 10-120
Dimensions AxBxC 6.9/175 x 6.9/175 x 4.33/110 in/mm
Weight lbs/kg 3.0/1.5
EMC standard UL 60947
IP-Rating NEMA 3R
Ashcroft XTP-sensor
Power supply VDC 14-36
Amperage mA 6
Output VDC 0-10
Operating temperature °F/°C 0 to 160/-17 to 70
Tolerance inWC/Pa 0.01/3+/-10%
Weight lbs/kg .9/.4
Chimney Probe
Dimensions H in/mm 4.25/108
I in/mm 3.50/89
B
A
C
D
F
G
E
H
I
Fig. 1
Symbols
Fig. 1-A Fuse holder Exhaust Fan
Fig. 1-B Fuse holder Control
Fig. 1-C Display 128 x 64 pixels
Fig. 1-D USB port
Fig. 1-E Up button
Fig. 1-F Select / Conrm button
Fig. 1-G Down button
Fig. 1-H Reset / Back button
Fig. 1-I LEDs (green) showing ON/OFF status
EBC24
1.45
2.90 3.33
1.89
1.32
.37
P OWER
HI LO
SPAN
ZERO
.56
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3120065 EBC24 US 20170329
3. Mechanical installation
3.1 Location
The control and the transducer must be installed inside, preferably in the boiler room. The control does not need to be
installed in an enclosure. Fig. 2 shows how the components are connected.
Fig. 2aFig. 2
EBC24 Control
The transducer cannot be mounted inside an airtight enclosure. It uses the boiler room pressure/atmos-
pheric pressure as reference pressure.
3.2 Mounting of control
The control can be mounted directly on a wall or similar.
yRemove the clear cover.
yThe mounting holes are located under the plastic screws that hold the cover in place (Fig. 3).
yThe distance between the control and the transducer should not exceed three hundred (300) feet.
Fig. 3
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3120065 EBC24 US 20170329
3.3 Mounting of transducer
Attention must be paid to the position and location of the transducer. Fig. 5 shows the required position. Failure to follow
this instruction may result in an inoperable system.
yAn Ashcroft XTP-sensor used for sensing draft should be mounted within six (6) feet of the stack probe.
yAn Ashcroft XTP-sensor used for sensing room pressure should be mounted within fty (50) feet of the Outdoor
Pressure Probe.
Fig. 4
3.4 Mounting of stack probe
The probe (Fig. 2a on page 5) is inserted into the chimney or vent at the point where the draft should be kept constant.
This could be at the appliance outlet, in the vent or similar.
Referring to Fig. 2, make sure the tip of the tube is ush with the inner wall of the stack. Inserting it too far may aect the
reading and thereby the operation.
3.5 Connecting transducer to stack probe
The transducer is connected to the stack probe via a silicone tube. Make sure that the tube is connected to the proper
transducer port as shown in Fig. 5.
Fig. 5
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3120065 EBC24 US 20170329
4. Electrical installation
4.1 General
DANGER
Turn o electrical power before servicing. Contact with live electric components can cause shock or death.
NOTE
EBC24 is designed for 1x120 VAC power supply only. Fan output is regulating on the phase side and
cannot be connected to other circuits.
The control can be used in two ways:
yConnected so the fan runs continuously independent of appliance operation (see paragraph 4.2).
yInterlocked with an appliance so the appliance operation indirectly controls the fan operation (see paragraph 4.3).
In both cases the control will still monitor and maintain a constant draft.
There are two types of safety systems available:
yIntegrated Proven Draft Switch (standard)
yIntegrated Proven Draft Switch with external Proven Draft Switch (accessory) backup
(see paragraph 4.4).
The terminals are connected as shown on g. 6:
Terminal Use
1 Power Supply-PE Ground
2 Power Supply-L1
3 Power Supply-N
4 Chimney Fan-N
5 Chimney Fan-L1 (Regulating)
6 Chimney Fan-PE Ground
7 VFD Relay NO
8 VFD Relay C
9 Alarm Out-NC
10 Alarm Out-NO
11 Alarm Out-C
12 Voltage Input from Appliance / Boiler 1 thermostat
Optocoupler (+) (10-120 VAC/DC)
13 Voltage Input from Appliance/Boiler 1 thermostat
Optocoupler (-) (10-120 VAC/DC)
14 Burner 1 relay contact-Normally Open (max. 120 VAC, 4 Amps.)
15 Burner 1 relay contact-Common (max. 120 VAC, 4 Amps.)
16 Voltage Input from Appliance / Boiler 2 thermostat
Optocoupler (+) (10-120 VAC/DC)
17 Voltage Input from Appliance / Boiler2 thermostat
Optocoupler (-) (10-120 VAC/DC)
Terminal Use
18 Burner 2 relay contact-Normally Open (max. 120 VAC, 4 Amps.)
19 Burner 2 relay contact-Common (max. 120 VAC, 4 Amps.)
20 Control signal VFD 0 VDC
21 Control signal VFD 0-10 VDC
22 XTP-0 VDC Power Supply (transducer)
23 XTP-24 VDC Power Supply (transducer)
24 XTP-0-10 VDC Return Signal (transducer)
25 RS485 0V
26 RS485 A
27 RS485 B
28 0VDC Power Supply
29 24 VDC Power Supply (Max 100 mA)
30 PDS-NC (Normally Closed) Proven Draft Switch
31 PDS-NO (Normally Open) Proven Draft Switch
32 PDS-C (Common) Proven Draft Switch
33 Buzzer-24 VDC Supply
34 Not used
35 Buzzer Signal
Fig. 6
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3120065 EBC24 US 20170329
4.2 Continuous chimney fan operation
Fig. 7 shows how to connect a chimney fan to the EBC24 if continuous operation is needed:
yConnect the power supply to terminals 1, 2 and 3.
yJump terminals 13 and 28.
yJump terminals 12 and 29
yJump terminals 30 and 32
yConnection to the appliance(s):
Connect the start signal from the burner to terminals 14 and 15.
yTo connect the chimney fan:
If using a 1x120V chimney fan, connect it to terminals 4, 5 and 6. Refer to the fan’s Installation Manual.
If using a 3-phase fan and VFD, connect the VFD to terminals 20 and 21 as shown in Fig. 10 and 11.
DO NOT connect the fan directly to the EBC24 control.
yConnect the XTP transducer to terminals 22, 23 and 24.
XTP2
COM Vout Vin
Fig. 7
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3120065 EBC24 US 20170329
4.3 Intermittent chimney fan operation (120 V)
The control can be interlocked with an appliance in two ways:
It can be interlocked directly with an appliance control, or with a dry set of contacts.
Interlock with Burner
Figure 8 shows how an appliance control signal (10-120V AC/DC) is connected to the EBC24:
yConnect the power supply to terminals 1, 2 and 3.
yConnection to the appliance:
Connect the boiler start signal to terminals 12 and 13
The start signal to the burner is now activated by terminal 14.
Connect Neutral to terminal 15.
yTo connect the chimney fan:
If using a 1x120V chimney fan, connect it to terminals 4, 5 and 6. Refer to the fan’s Installation manual.
If using a 3-phase fan and VFD, connect the VFD to terminals 20 and 21 as shown in Fig. 10 and 11.
DO NOT connect the fan directly to the EBC24 control.
yThe XTP-transducer is connected to terminals 22, 23 and 24.
XTP2
COM Vout Vin
Fig. 8
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3120065 EBC24 US 20170329
Interlock with dry set of contacts
Figure 9 shows how a dry set of contacts is connected to the EBC24:
yConnect the power supply to terminals 1, 2 and 3.
yConnection to the appliance:
Connect the dry set of contacts to terminals 12 and 13.
Connect the start signal to the burner to terminals 14 and 15.
yTo connect the chimney fan:
If using a 1x120V chimney fan, connect it to terminals 4, 5 and 6. Refer to the fan’s Installation Manual.
If using a 3-phase fan and VFD, connect the VFD to terminals 20 and 21 as shown in Fig. 10 and 11. DO NOT con-
nect the fan directly to the EBC24 control.
Connect the XTP transducer to terminals 22, 23 and 24
XTP2
COM Vout Vin
Fig. 9
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3120065 EBC24 US 20170329
Altri manuali per EBC24 Series
1
Indice
Altri manuali Exodraft Pannello di controllo
