Brunner EAS 3 User manual

Operating Instructions
EAS 3
©2023

CONTENTS
1 Intended use of the EAS 3............................................4
2 Specified symbols......................................................... 4
3 Lighting fire in a cold fireplace.................................... 5
4 Adding fuel in a warm fireplace...................................6
5 Operation during heating processes...........................6
6 Heating with manually controlled combustion ail sup-
ply....................................................................................7
7 Power failure/-recovery................................................. 9
8 Changing the battery...................................................10
9 Error messages............................................................11
10 EAS 3 with display...................................................... 13
10.1 Overview of user interface.....................................................13
10.2 S+ (prolonged combustion mode)......................................... 19
10.3 Eco mode...............................................................................19
10.4 Brightness of background illumination...................................20
10.5 Tone settings..........................................................................20
10.6 Setting of reloading indications............................................. 21
10.7 Damper flap operation........................................................... 22
10.8 WiFi Configuration................................................................. 22
10.9 Software version.................................................................... 23
10.10 Version of stove parameters................................................. 23
10.11 Combustion logger.................................................................23
10.12 LED........................................................................................ 25
11 Cleaning........................................................................25
12 EAS 3 app.....................................................................26
2 Operating Instructions EAS 3 (2.6) © 2023 Brunner GmbH

Please read the entire User Guide before lighting the fire for the first time. In par-
ticular, please note the safety precautions in this manual.
Installation must be carried out by an authorized stove-fitter, because safety and
efficiency of the system depend mostly on proper installation of the product. All
valid stove fitting rules and regulations of building law must be observed and fol-
lowed.
This fireplace is subject to the provisions of 1. BlmSchV.
Necessary national and European standards and local regulations must be ob-
served.
Old devices contain recyclable materials. Please follow the applicable national
regulations for disposal.
Please follow the relevant regulations of your country. In case of doubt, check the
valid conditions for the operation of fireplaces in your local area.
Subject to technical changes!
Please keep the User Guide for future reference!
Waste on fire = Toxins in your garden
© 2023 Brunner GmbH Operating Instructions EAS 3 (2.6) 3

1 INTENDED USE OF THE EAS 3
The Electronic Burnup Control (EAS = Elektronische Abbrand Steuerung )
controls the combustion air for the combustion chamber of a furnace sys-
tem and optionally the flue gases.
2 SPECIFIED SYMBOLS
In this documentation, a distinction is made between:
Operating personnel as the User of the system, i.e. the end user, which has re-
ceived instructions from the Contractor and does not necessarily have additional
qualifications.
Operating personnel as the Contractor, i.e. the qualified professionals, which are
entitled to perform the indicated specialist works.
In this document, the following symbols are used:
DANGER
A danger of high risk persists, which leads to severe injury or
death, if this endangering situation is not avoided.
WARNING
A danger of medium risk persists, which can lead to severe injury
or death, if this endangering situation is not avoided.
CAUTION
A danger of low risk persists, which can lead to minor or moder-
ate injury, if this endangering situation is not avoided.
ATTENTION
There is a certain risk, which can lead to a malfunction or dam-
age of the related system and all devices connected with it, if the
indicated notifications are not followed.
4 Operating Instructions EAS 3 (2.6) © 2023 Brunner GmbH

NOTE
Additional helpful information
3 LIGHTING FIRE IN A COLD FIREPLACE
1 Open the firing door. A short functional inspection of the EAS takes
and the combustion air valve is driven into the starting up position. The
damper flap (if mounted) opens completely.The sensor at the exhaust
gas stub announces the combustion temperature. Make sure that the
level of ashes is not too high. Maximum level: 5 cm below the door
frame.
2 Load some chopped firewood loosely into the fireplace. Load the de-
sired amount of wood logs on this small wood. Put a good fire-starter,
such as Fidibus between the logs and light the fire. Fire-starters are
practical fire starting aids. Please note: big logs are not easy to light and
heavy to burn in a cold fireplace.Never use petrol or alcohol as aids for
lighting fire!
3 Close the firing door. From now on the EAS takes over the control of
the combustion air valve/damper flap. Closing the door is the signal for
the EAS that a heating procedure is started. The diagram for “Stage
1” appears. In this position the air valve is fully opened, so that a fast
high heating is possible. The fast high heating is the most important fac-
tor in order to obtain a clean combustion with reduced emissions. Until
approx. 450°C (depending on the type of heater) is reached, the com-
bustion air valve remains in this stage. With exceeding of this threshold
temperature the motor of the combustion air valve drives the air valve
further stage for stage.The damper flap will be activated as needed
by the EAS If this threshold temperature is not reached, the message
“Heating error” appears.
If after closing of the firing door the diagram with “Stage 1”
doesn’t appear, then there is a defect. Please control the
heater manually and inform the stove builder.
© 2023 Brunner GmbH Operating Instructions EAS 3 (2.6) 5

4 ADDING FUEL IN A WARM FIREPLACE
1 According to the heat requirement, a new combustion can be started.
However, please not the basic rule that only after complete burning of
the previous load, a further load can be added. The wood burning con-
cept requires that load after load is burned, and not log after log.
2 When “END” is displayed in the combustion cycle graphic, there are
still some hot embers left from the last combustion cycle. The reloaded
wood will ignite from these hot embers only. For easy start, put some
wood chips directly on the the hot embers (slightly “spread” the embers,
if necessary). Close the stove door again.
From now on, EAS will control the combustion air supply. Closing the
door serves as a signal for the EAS, that the combustion process has
started. In the display, the combustion cycle graphic will show “Stage 1”
or “Stage 2”, depending on the combustion temperature.
A new combustion cycle begins.
Whenever the stove door is opened or closed, the EAS will initi-
ate its monitoring functions. The control system will wait for a new
combustion cycle to begin. Error messages will be shown, if the
reloaded wood amount is too small, or when no wood is reloaded
at all. Therefore, avoid unnecessary opening of the stove door!
5 OPERATION DURING HEATING PRO-
CESSES
During normal heating processes, no operation at the display of the EAS
resp. EAS 3 App is necessary. The control unit starts automatically the
process when the firing door of the heating insert is opened and goes into
the ‘Standby’ mode if for a longer time no action takes place or when the
insert is cold.
6 Operating Instructions EAS 3 (2.6) © 2023 Brunner GmbH

6 HEATING WITH MANUALLY CONTROLLED
COMBUSTION AIL SUPPLY
In the case of a power failure as well as in the case of device errors, your
heating insert with EAS can be controlled manually.
Proceed as follows:
•Attach the operating tool to the
square bar of the air valve motor.
•Turn the operating tool clockwise
until the stop. This is the starting
up position. = AUF.
•For closing the combustion air
turn the tool against clockwise
until the stop. This is the position
of glow keeping.= ZU.
Illustration 1: Motor box (without unlock-
ing)
ATTENTION
During manual operation no supply voltage may be appllied!
Damages at the control unit may occur.
WARRNING
In emergency operation always keep the damper flap wide open.
© 2023 Brunner GmbH Operating Instructions EAS 3 (2.6) 7

Lighting fire in a cold fireplace
1 Make sure that the level of ashes is not too high. Maximum level: 5 cm
below the door frame. When the ash bed becomes too high, the volume
of the combustion chamber is reduced and the flame formation needed
for a clean combustion process is disturbed.
Bring the combustion air valve in the starting up position.
The combustion air can flow strongly on the wood in order to heat up
fast.
2 Load some chopped firewood loosely into the fireplace. Load the de-
sired amount of wood logs on this small wood. Put a good fire-starter,
such as Fidibus between the logs and light the fire.
Fire-starters are practical fire starting aids. Please note: big logs are not
easy to light and heavy to burn in a cold fireplace.
Never use petrol or alcohol as aids for lighting fire!
3 Close the firing door again and observe the heating insert for a while.
If the fire should expire, open the firing door slowly and put a new fire-
starter in between the woodlogs and light it on.
4 If no more fuel is needed, at the end of the combustion, this means
when no flames or to be observed any more, bring the air combustion
valve in the glow keeping position.
The air valve should never be put in this position during the burning and
degassing phase, as by sudden oxygen admission (for ex. opening of
the firing door) the in the combustion chamber “standing gases” can re-
act with the oxygen.
8 Operating Instructions EAS 3 (2.6) © 2023 Brunner GmbH

Adding fuel in a warm fireplace
1 Bring the combustion air valve in the starting up position („Anheizen“=
AUF ) and load the desired amount of fuel on the glow.
When loading the fuel on the glow bed the fuel is warmed up and the
contained humidity is driven out and evaporates. This leads to a tem-
perature reduction in the combustion chamber. The volatile fuel com-
ponents driven out at the same time need sufficiently combustion air so
that this emission-technical phase is fast gone through and the temper-
ature in the post combustion chamber exceeds ca. 450°C (depending
on the type of insert).
2 If no more fuel is needed, at the end of the combustion, this means
when no flames are to be observed any more, bring the air combustion
valve in the glow keeping position (“Gluthaltung” = ZU).
The air valve should never be put in this position during the burning and
degassing phase, as by sudden oxygen admission (for ex. opening of
the firing door) the in the combustion chamber “standing gases” can re-
act with the oxygen.
7 POWER FAILURE/-RECOVERY
Power failure
In case of power failure, the combustion air valve and the damper flap (if
installed) is driven into the „100% open“ position. The energy necessary for
this „emergency function“ comes from a battery, which must be inserted in
the EAS and ready for use. A possibly existing heating up flap or the like is
driven automatically into its safety position.
The battery does not supply the energy for the display. During power fail-
ure no information about the installation can be shown.
See also the data in the chapter “Heating with manual regulation of the
combustion air”.
© 2023 Brunner GmbH Operating Instructions EAS 3 (2.6) 9

Power recovery
After a restart, the combustion air valve is in „Stage 1“. The damper flap in
the „100% open“ position. In In order to activate the combustion control unit
again, the starting signal „Door open / closed“ is needed. If no starting sig-
nal takes place, for security reasons a possibly started fire will be finished
in the „Stage 1“ position.
8 CHANGING THE BATTERY
A necessary battery change is indicated by the message „LBAT“ into the small
announcement area. The battery should be changed immediately, in order to dri-
ve the combustion air valve and the damper flap into its safety position (100%
open) in case of a defect or power failure.
The security battery can be found on the central control unit panel in a battery
box.
Illustration 2: EAS 3 with
display
Illustration 3: EAS 3 without dis-
play
- Disconnect the EAS from mains voltage ( fuse in the fuse box).
- With the enclosed tool the locking of the EAS in the electrical box can be loosened. Lead
the tool above behind the glass plate into the outer recess planned for it. A light pressure
unlocks the click lock.
- The EAS can be taken out of the wall mount box
- Take battery out of the battery box.
10 Operating Instructions EAS 3 (2.6) © 2023 Brunner GmbH