resideo Braukmann Guide

EN1H-2615GE25 R1020
50093594-001 Rev. C
INSTALLATION, COMMISSIONING AND OPERATING INSTRUCTIONS
Unit as delivered
Unit completed with optional components
Contents
Contents ..................................................................................................1
Safety Guidelines ....................................................................................2
General Warnings ...................................................................................2
Before Installation ...................................................................................2
Wiring .......................................................................................................2
Description ..............................................................................................2
Dimensions and details .........................................................................3
Hydraulic diagram ...................................................................................3
Technical data .........................................................................................3
Mounting ..................................................................................................4
External casing dismounting-mounting ...............................................4
Wall mounting .........................................................................................4
Fixing electrical cables ...........................................................................5
Electrical connections ............................................................................5
Activation .................................................................................................5
Display and keypad ................................................................................5
Programming for Technician .................................................................6
Deactivation of unit functions ...............................................................6
Unit electrical disconnection .................................................................6
Control and regulations .........................................................................6
DHW temperature ....................................................................................6
Spare parts ..............................................................................................7
Metering ...................................................................................................7
Backflow preventer .................................................................................7
Unit Components ....................................................................................7
Braukmann
HyBo - Hydraulic Interface Unit
AMBIENT HEATING AND DOMESTIC HOT WATER PRODUCTION FOR
CENTRAL HEATING SYSTEM UNIT CODE EHIU1

HYBO - HYDRAULIC INTERFACE UNIT
EN1H-2615GE25 R1020 2
Safety Guidelines
General Warnings
If installation instructions are followed, required water quality is provided and
installed space is controlled. After 6 month of usage it is recommended just
to clean the strainer.
Before Installation
1. Unpack and remove the EHIU1 from carton.
2. Check the equipment and report any damage to a Resideo represen-
tative.
3. The unit mustbe fixed to the wall by using no. 4 Ø 8 mm anchors (not
included).
NOTE: Anchoring materials must be suitable for the mounting surface which
must comply with all local codes.
Wiring
The unit needs a 230V 50Hz electrical connection.
If the unit is installed inside the apartment, power supply must be sourced
from the apartment itself.
On the contrary, if the unit is installed in common locals, it is supplied by a
common central line.
Description
WARNING
Resideo Hydraulic Interface Unit must be installed by qualified
personnel in accordance with the applicable regulations and IEE
Regulations.
The end user is not authorized to work on the unit. Any contractual or
extra-contractual responsibilities of the Constructor is excluded for
damages to people, animals or things caused by an improper use or
by installation mistakes or special maintenance as well as by not qual-
ified personnel intervention and, in general, by non-fulfilment of what
indicated in installation, commissioning and operating instructions.
Resideo take no responsibility for difficulties arising from failure to
observe these instructions. Please read this manual before under-
taking the installation.
Upon completion of the installation, please hand these instructions to
the user. These instructions should be retained for future reference.
WARNING
Resideo EHIU1 is a wall hanging HIU with optional external casing. If
installed without external casing it must be placed in a protected
space not accessible by unqualified people. It has the capability to
provide the central heating and to produce instantaneous domestic
hot water. Hot water is alwaysproduced in priority to the heating
service. The maximum temperature of the domestic hot water may be
adjusted by accessing the digital display unit which is positioned
within the casing.
WARNING
Risk of scalding!
Even in normal operating conditions unit reaches high temperatures
that can cause burns. It is risky to touch the pipes without protection.
WARNING
Risk of electric shock or equipment damage!
Before installation and any maintenance operation disconnect elec-
trical supply.
For device disconnection use a circuit breaker or a plug.
Do not reconnect the power supply until you have completed the
installation. In general before any operation disconnect power supply.
Device doesn´t requires any maintenance.
WARNING
The Installer has to check that unit fixing systems are suitable to
mounting wall.
This equipment must only be used for the purpose for which it was
intended, improper use may be hazardous.
CAUTION
M-Bus and electrical supply cables must be separated in order to
avoid any interferences.
CAUTION
All electrical connection must be compliant with local laws, rules and
regulations.
A suitable room thermostat clock/room thermostat with 230V 50 Hz
output must be provided and connected by the installer. The elec-
tronic board is protected by a 1 Ampere fuse.
CAUTION
Notices about domestic hot water
If the supply water hardness exceeds 15°f (dGH) it is recommended
to install a suitable scale reducing device (softener). In order to
reduce scale forming inside heat exchanger, set the sanitary water
temperature to a value that is slightly superior compared to the oper-
ating one.
pH value should be between 7 ~ 9.

HYBO - HYDRAULIC INTERFACE UNIT
3EN1H-2615GE25 R1020
Dimensions and details
Hydraulic diagram
Technical data
* Physical limit for quite operation. Real max flow depends on target system
parameters.
1. Room thermostat 230V AC 2. Power supply 230V AC
1Manual isolation valve
2Plate heat exchanger
3Manual air vent
4Modulating motorized valve for DHW control
5Static balancing valve
6DHW sensor
7On/Off motorized valve for heating control
8DHW flow sensor
9Filter
10 Pressure control probe holder
11 Blind pipe for water meter
12 Heat meter temperature probe holder
13 Blind pipe for water meter
14 Control panel
AReturn to centralized system
BSupply from centralized system
CCold sanitary water inlet
DHot sanitary water outlet
ECold sanitary water outlet
FHeating outlet to apartement
GHeating return from apartement
Heating Circuit
Kind of fluid Water VDI2035
max. glycol 30%
Max. temperature 90°C
Max. operating pressure 6 bar
Domestic water line
Kind of fluid Water max hardness 15dGH and pH 7-9
Max.temperature 30°C
Max. operating pressure 6 bar
Max. flow rate 1.5 m3/h
Nominal flow rate 1.25 m3/h
DHW / Exchanger Secondary Circuit
Kind of fluid Water max hardness 15dGH and pH 7-9
Max. setting temperature 60°C
Max. operating pressure 6 bar
DHW production flow activation 3.5 l/min
DHW production flow
deactivation
2.5 l/min
Display approximation 1°C
Max. flow rate 22l/min*
Pipes
Material Copper
Size ∅18 mm
Hydraulic connections
Material Brass
Size G 3/4" M
Template box
Material Galvanized sheet 1 mm
Casing and door
Material pickling sheet 1 mm
Colour RAL 9010
Electrical supply
Voltage 230V +/- 10%
Frequency 50 Hz
Max. power consumption 10W
IP protection 20
Ambient operation
Installation Indoor
Ambient temperature range 5-55°C
Humidity range 25-85%
Motorized Valve
Operation time ON/OFF type 15 sec
Operation time Modulating type 15 sec

HYBO - HYDRAULIC INTERFACE UNIT
EN1H-2615GE25 R1020 4
The figures/table below indicates kvvalues of the unit.
kv(m3/h with Δp = 100 kPa = 1 bar)
*kvs values refer to the static balancing valve setted at 5.9 (pre-setting) and
at 1.5 for the DPCV
The general equation for calculating pressure drop, knowing flow rate value
is the following
Δp [bar] = (Q [m3/h] / kv)2
Mounting
External casing dismounting-mounting
Before installation the external casing must be removed as indicated in the
image. The external casing is a unique piece placed on the carrying struc-
ture: it is fixed by 2 screws on superior part and 2 screws on inferior part. After
external casing removal and having placed it safely, it is possible to proceed
with the hydraulic unit installation.
Wall mounting
The unit has to be installed indoors in suitable ambient conditions (see tech-
nical specification on page 3).
The installer has to individuate the most suitable wall according to weight and
overall dimensions indicated on page 3.
For fixing unit it is necessary to use no. 4 Ø 8 mm anchors (not included), they
have to be suitable to the chosen wall for installation. The position has to be
compliant with hydraulic connections.
It is suggested to leave a free space of 10cm on left side for an easier access
to the strainer
Circuit Heat exchanger type
24P 40P
no meter no meter
A-B primary heat
exchanger
1.76mc/h 1.88mc/h
Circuit Balancing type
Static DPCV
no meter no meter
(B-F) + (G-A) heating 2.68 mc/h 2.18 mc/h
Circuit
C-D hot water 1.83 mc/h
C-E cold water 5.06 mc/h
CAUTION
The indicated kvare valid for water without glycol.
CAUTION
Before installing the unit, the centralised and apartment systems must
be cleansed and flushed to avoid fouling of the unit with impurities or
debris from the pipe work installation procedures. The presence of
impurities in pipes can be the reason for unsatisfactory working and
can cause possible damages to unit components. Therefore it is very
important to carefully flush pipes before installing.
Connecting the unit to centralized distribution system with
interception manual valves (included) is strongly recommended.
Thanks to this the unit could be quickly and without particular user
unease de-touched from centralized plant in case of special mainte-
nance.
Take care not to damage or break the connection seals. Pipe connec-
tion torque must not exceed 50 Nm.

5EN1H-2615GE25 R1020
Fixing electrical cables
Power electrical and ambient thermostat cables enter the unit thanks to cable
glands on unit bottom side. Cable maximum diameter: 8 mm.
Cable terminals must be connected to related board inside the electrical box
( see “electrical connections”).
Electrical connections
Supply Cable (L- - N)
3 x 1.5 mm2cable heat resistance;
• line,
• neutral, blue sheathing
• ground, yellow/green sheathing
Room thermostat (T.A)
2 x 1.5 mm2cable heat resistance.
This device must give power to “TA” terminal ends in order to power relay coil
positioned inside the electric board.
Working logic:
• 230V “TA” ends voltage: heating function activation (opened valve)
• 0V “TA” ends voltage: heating function deactivation (closed valve)
1. Fuse
2. Bipolar switch
3. Cable gland
Activation
Once the installation is completed and after checking that all electric and
hydraulic connections have been correctly made, it is possible to activate the
unit by moving the bipolar switch on electric box to ON position.
Display and keypad
CAUTION
Between cable glands and electrical box, cables must be positioned
in a way that avoids contact with copper pipes. Please use the
specific cable glands supplied.
CAUTION
Before carrying out electrical connections, please read general
instructions at page 1.
WARNING
Isolate the unit from the electrical supply before removing the cover
of the electrical box.
WARNING
THIS APPLIANCE MUST BE GROUNDED.
Ground wire connection must be secured against releasing. The elec-
trical installation must only carried out by competent persons in accor-
dance with the current edition of the IEE regulations.
The LED lights on the right side of the digital display
indicate the actions of the hot water temperature
control system.
Red LED = Valve opening/open - the temperature of
the hot water is required to be raised
Green LED = Valve closing/closed - the temperature
of the hot water is required to be reduced
In order to turn it off, press the “ON/OFF” button: if the
equipment is still powered, the “OFF” sign will appear.
When the unit is electrically powered,the installed soft-
ware version is shown on the display for a few
seconds.
Immediately after, if the equipment was off the last
time it was powered (default condition at the time of
purchase),the “OFF” message appears. In order to
turn it on, press the “D”-ON/OFF button once.
The display shows the temperature detected by the
sensor which is placed at the outlet of the domestic hot
water delivered to the dwelling. When a hot water tap
is opened, the unit will start automatically.
HYBO - HYDRAULIC INTERFACE UNIT

HYBO - HYDRAULIC INTERFACE UNIT
EN1H-2615GE25 R1020 6
Programming for Technician
Access to programming menu. When digital display shows “OFF”, push
simultaneously “A” and “B” buttons. When display shows “P1” release
buttons. ”A and “B” buttons scroll main menu and increase or decrease value
in under menu. “ENTER” button goes into sub menu and save data itself.
(*) Anti-burns function intervenes when the sensor, positioned on hot sanitary
water delivery, feels a temperature superior to “set-point + P3 value”. In this
condition the modulating 2-way valve, positioned on heat exchanger primary,
is forced to complete closure and interrupts the erogation of thermal energy.
When temperature goes down to “set-point + P3 value”, the system automat-
ically starts normal production of sanitary hot water again.
(**) When warmed heat exchanger function is activated (P5 =0) the primary
circuit of the heat exchanger is constantly maintained in temperature (even
in absence of sanitary drawing) thanks to the passage of a small quantity of
hot water in primary circuit. This function can be activated when the unit is
away from distribution columns to reduce the DHW production delay time.
Deactivation of unit functions
During summer time, in order to deactivate heating function you have to set
the minimum temperature value on room thermostat or selecting “OFF”
mode, if present. Regarding sanitary function, excluding all takings is suffi-
cient and the module will automatically stop any energy inflow from central-
ized plant (if the warmed heat exchanger is deactivated). Besides, pressing
“ON/OFF” button on keypad is possible to deactivate hydraulic unit functions.
On display you find “OFF” and all functions are deactivated:both motorized
valves are on complete closing
Unit electrical disconnection
To disconnect the unit from electrical network follow these instructions:
1. Electrically disconnect ambient thermostat
2. Press “ON/OFF” button on keypad
3. Wait for about 30 sec. in order to give time to motorized valves to close.
4. Check that the motorized valves are in closed position by checking di-
rectional arrow position
5. Move the bi-polar switch on electrical box to OFF position
Control and regulations
DHW temperature
When the unit is activated and the display shows the temperature detected
by the probe, it is possible to adjust the set supply temperature of the hot
sanitary water. Use the buttons on the keypad:
Main menu Under menu Function
P1 X.X (sec) Where „X.X“ indicates time of sampling
temperature.
Regulation range 1.0 ³ 10.0 sec
(default 1.0 sec) for 24 plates heat exchanger
and 1.3 sec for 40 plates heat exchanger
P2 X (sec) Where „X“ indicates delay time ordered to
activation of sanitary hot water production by
flow meter signal (eco function)
Regulation range: 0 ³ 5 sec.
(default 0 sec)
P3 XX (°C) Where „XX“ indicates the Δtemperature to
be added to the setpoint to obtain the
maximum permitted temperature beyond
which the sanitary valve closes. Anti-burns
function*.
Regulation range 5 ³ 50°C
(default 5°C)
P4 XX (sec) Where „XX“ indicates delay time ordered to
anti burns function intervention.
Regulation range 0 30 sec
(default 0 sec)
P5 X Where „X“ is a Boolean variable that can be:
0 = warmed heat exchanger function acti-
vated **
1 = warmed heat exchanger function deacti-
vated
(default 1)
CAUTION
The anti-burns function helps to avoid supply of hot sanitary water
with dangerous temperatures. Installing devices for thermal safety for
sanitary uses to be placed below the unit is advised.
If the hot sanitary water temperature sensor is damaged or not
connected the display shows the allarm “ALt”. The modulating valve
of the plated exchanger primary circuit is forced to closing; the
flashing "AL t" is displayed. When the damage is restored the unit
start again with its normal functioning.
WARNING
Electrical power coming from ambient thermostat is NOT inter-
rupted by bi-polar switch. In order to complete disconnect the
hydraulic unit form electrical power interrupt ambient thermo-
stat power.
CAUTION
A disconnection from electric network made without operating as
described above does not grant the complete hydraulic isolation of
the module from the whole plant. As a consequence the module could
still take and regulate heat even though not requested.
Press the “A” button to decrease the temperature
value. Press the “B” button to increase the temperature
value. The display will show a value ranging from 0 to
10. 0 corresponds to approximately 40°C, 10 corre-
sponds to approximately 60°C. Then, press “ENTER”
to accept the value.

7EN1H-2615GE25 R1020
Balancing
The unit is equipped with a static balancing valve. In addition can be added
the diaphragm for differential pressure balancing (not included with HIU).
A probe is already installed on pipe "f" to facilitate the installation.
See in picture below the suggest installation.
Metering
The unit can be equipped with energy and water meters. Stub pieces are
arranged on the unit to facilitate the installation:
• remove the stub piece
• install the meter (max torque 50Nm)
- original sealings installed with stub pieces must be replaced
- When installing display of ultrasonic heatmeter take care to use not too
long screws to avoid touching the pipe under
• connect temperature sensors in the pre-arranged probes
Heatmeter 1 will measure the total energy consumtpion both for heating and
domestic hot water production.
Heatmeter 2 will measure the energy consumption of apartment heating only.
Energy consumption only for domestic hot water production can be
measured as difference between heatmeter 1 and heatmeter 2.
Backflow preventer
As required by regulations insert a backflow preventer on the domestic cold
water inlet.
Backflow preventer is not included with the unit.
CAUTION
Sharp edges could cause injury.
The Heat meter should be installed before the impulse copper tube of
diaphragm unit for dynamic balancing. Don't bend the tube to the
sharp angles - it may cause breaks.
Before installation of any meter take out the old washer, clean the
sealing surface and use new washer (not included).
Unit Components
abcdef g
Heat exchanger (insulated)
Strainer (behind heat exchanger)
Temperature sensor
Place for heatmeter 1
Place for water meter
Heatmeter 1 temperature probe
Passage for electric connections
Heatmeter 2 temperature probe
Static balancing valve
ON/OFF motorized valve
Modulating motorized valve
Pipes (insulated)
Support for ultrasonic heatmeters
Cabinet with door
Place for heatmeter 2
Flow meter Air valves Electronic controller
Stop valves
(pipe probe for upgrade to
for sanitary water
automatic)
HYBO - HYDRAULIC INTERFACE UNIT

HYBO - HYDRAULIC INTERFACE UNIT
©2020 Resideo Technologies, Inc. All rights reserved.
Manufactured for
and on behalf of
Pittway Sarl, Z.A., La Pièce 4,
1180 Rolle, Switzerland
For more information
homecomfort.resideo.com/europe
Ademco 1 GmbH, Hardhofweg 40,
74821 MOSBACH, GERMANY
Phone: [phone]
Fax: [phone]
Subject to change. MU1H-1204GE23 R1020