Exhausto EBC11, Быстрый старт

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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