alphainnoTec HMD 1 User manual

We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Accessories for Dual Air / Water Heat Pumps
Operating Manual
HYDRAULIC MODULE
HMD 1
HMD 1/E
HMD 1/R
HMD 1/RE
UK

2We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Please read rst
This operating manual provides important information
on the handling of the unit. It is an integral part of the
product and must be stored so that it is accessible in the
immediate vicinity of the unit. It must remain available
throughout the entire service life of the unit. It must be
handed over to subsequent owners or users of the unit.
Read the operating manual before working on or
operating the unit. This applies in particular to the
chapter on safety. Always follow all instructions
completely and without restrictions.
It is possible that this operating manual may contain
instructions that seem incomprehensible or unclear. In
the event of any questions or if any details are unclear,
contact the factory customer service department or the
manufacturer’s local partner.
Since this operating manual was written for several
different models of the unit, always comply with the
parameters for the respective model.
This operating manual is intended only for persons
assigned to work on or operate the unit. Treat all
constituent parts condentially. The information
contained herein is protected by copyright. No part of
this manual may be reproduced, transmitted, copied,
stored in electronic data systems or translated into
another language, either wholly or in part, without the
express written permission of the manufacturer.
Symbols
The following symbols are used in the operating manual.
They have the following meaning:
Information for operators.
Information or instructions for qualied
technicians.
DANGER!
Indicates a direct impending danger
resulting in severe injuries or death.
WARNING!
Indicates a potentially dangerous situation
that could result in serious injuries or
death.
CAUTION!
Indicates a potentially dangerous situation
that could result in medium or slight
injuries.
ATTENTION
Indicates a potentially dangerous situation, which
could result in property damage.
NOTICE.
Emphasised information.
€ENERGY SAVING TIP
Indicates suggestions that help to save energy,
raw materials and costs.
Reference to other sections of the operating
manual.
Reference to other documents of the
manufacturer.

3
Inhaltsverzeichnis
INFORMATION FOR USERS AND
QUALIFIED PERSONNEL
PLEASE READ FIRST..................................................................2
SYMBOLS .....................................................................................2
INTENDED USE..........................................................................4
DISCLAIMER................................................................................4
SAFETY.........................................................................................4
CUSTOMER SERVICE ................................................................5
WARRANTY / GUARANTEE...................................................5
DISPOSAL ....................................................................................5
INFORMATION FOR USERS
HEAT METERING .......................................................................5
OPERATION................................................................................5
CARE OF THE UNIT..................................................................5
MAINTENANCE OF THE UNIT..............................................6
MALFUNCTIONS.......................................................................6
Further error numbers: ......................................................6
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY..................................................7
Components of the unit ......................................................8
Components of the unit ......................................................8
INSTALLATION ..........................................................................9
Installation location..............................................................9
Transport to installation location......................................9
Installation..............................................................................9
Installation / Hydraulic connection to heating circuit .. 11
Safety assembly ...................................................................11
Expansion vessels................................................................11
ELECTRICAL CONNECTIONS .............................................12
Connect BUS cable.............................................................13
FLUSHING, FILLING AND BLEEDING THE SYSTEM.......14
Flushing, filling and bleeding the heating circuit ............14
INSULATING THE HYDRAULIC CONNECTIONS ..........15
CONTROL ELEMENT..............................................................16
COMMISSIONING ...................................................................16
Safety temperature limiter................................................16
Switching on for the first time..........................................17
DISMANTLING .........................................................................17
TECHNICAL DATA / SCOPE OF DELIVERY ........................18
PERFORMANCE CURVES
HMD 1(R) .............................................................................20
HMD 1/(R)e..........................................................................20
Free compression ..............................................................20
DIMENSIONAL DRAWINGS .................................................21
DIMENSIONAL DRAWINGS .................................................22
Installation plan...................................................................24
HMD 1(E) .............................................................................24
HMD 1/R(E) .........................................................................25
TERMINAL DIAGRAM
CIRCUIT DIAGRAMS
HMD 1(E) .............................................................................27
HMD 1/R(E) .........................................................................29
EC DECLARATION OF CONFORMITY..............................31
We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH

4We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Intended use
The hydraulic module is a functionally-necessary
accessory for dual air/water heat pumps intended for
outdoor installation. Taking into account the limits of
application, the unit can be used in combination with an
outdoor installation dual air/water heat pump in new or
existing heating systems.
The unit may be used only for the intended use. This
means, in conjunction with a dual air/water heat pump:
•for heating
•for cooling (RX variants only)
•for domestic water heating
The unit may be operated only within its technical
parameters.
Overview “Technical data / Scope of delivery”
and overview “Technical data/ Scope of delivery”
of the operating manual for the heat pump to
which the hydraulic module is connected.
Disclaimer
The manufacturer is not liable for losses resulting from
any use of the unit which is not its intended use.
The manufacturer’s liability also expires:
•if work is carried out on the unit and its
components contrary to the instructions in this
operating manual.
•if work is improperly carried out on the unit and
its components.
•if work is carried out on the unit which is not
described in this operating manual, and this
work has not been explicitly approved by the
manufacturer in writing.
•if the unit or components in the unit have been
altered, modied or removed without the explicit
written consent of the manufacturer.
Safety
The unit is safe to operate for its intended use. The
construction and design of the unit conform to current
state of the art standards, all relevant DIN/VDE
regulations and all relevant safety regulations.
Every person who performs work on the unit must
have read and understood the operating manual prior
to starting any work. This also applies if the respective
person has already worked with such a unit or a similar
unit or has been trained by the manufacturer.
Every person who performs work on the unit must
comply with the applicable accident prevention and
safety regulations. This applies in particular to the
wearing of personal protective equipment.
DANGER!
Risk of fatal injury due to electric shock!
Electrical connections may be installed
only by qualied electricians.
Before opening the unit, disconnect the
system from the power supply and secure
it from being switched back on!
WARNING!
Only qualied technicians (trained
heating, cooling, refrigerant and electrical
technicians) may perform work on the
unit and its components.
WARNING!
Observe safety labels on and in the unit.
ATTENTION!
For safety reasons:
Never disconnect the unit from the power sup-
ply, unless the unit is being opened.

5
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Customer service
For technical information please contact a qualied
technician or the manufacturer’s local partner.
Operating instructions for your heat pump,
Appendix, customer service, addresses for
service
Warranty / Guarantee
For warranty and guarantee conditions, please refer to
the purchase documents.
NOTE.
Please contact your dealer concerning warran-
ties and guarantees.
Disposal
When decommissioning the unit, always comply with
applicable laws, directives and standards for the recovery,
recycling and disposal of materials and components.
“Dismantling”.
Operation
Your decision to purchase a heat pump or a heat
pump system is a long-term contribution to protecting
the environment through low emissions and reduced
primary energy use.
You can operate and control the heat pump system
with the control element of the heating and heat pump
regulator.
NOTE.
Make sure that the control settings are correct.
Operating manual of the heating and heat pump
regulator.
To ensure that your heat pump or heat pump system
operates efciently and ecologically, the following are
especially important:
€ENERGY SAVING TIP
Avoid unnecessarily high ow temperatures.
A lower ow temperature on the hot water side
increases the efciency of the system.
€ENERGY SAVING TIP
Preferably use rapid ventilation. To save energy
and reduce your heating costs, do not leave win-
dows open for long periods.
Care of the unit
The outer surfaces of the unit can be cleaned with a
damp cloth and household cleaning products.
Do not use cleaning or care products that contain
abrasives, acids and/or chlorine. Such products would
destroy the surfaces and could also damage the technical
components of the unit.
Heat metering
In addition to proof of the unit’s efciency, the
EEWaermeG also requires heat metering (hereafter
referred to as HQR). Heat metering is mandatory for
air/water heat pumps. Heat metering for brine/water
and water/water heat pumps only have to be installed
for a ow temperature ≥ 35 °C. The heat metering must
record the total thermal energy released (heating and
domestic hot water) in the building. In heat pumps with
heat metering, the analysis is carried out by the regulator.
The regulator displays the thermal energy discharged in
the heating system in kWh.
NOTE.
Unit variants are available, with or without heat
metering.

6We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Maintenance of the unit
The components of the heating circuit and the heat
source (valves, expansion vessels, circulating pumps,
lters, dirt traps) should be inspected and cleaned as
necessary - however, at least once a year - by qualied
personnel (heating or cooling system tters).
It is best to arrange a maintenance agreement with a
heating installation company. The company will arrange
the necessary regular maintenance work.
Malfunctions
In the event of a fault, you can read out the cause of the
fault from the diagnostic program of the heating and heat
pump regulator.
Operating manual for the heating and heat pump
regulator.
Furthererrornumbers:
Description Remedy
761 LIN timeout Check cable/contact
762 Tü sensor error
(evaporator
intake)
Check sensor, replace if neces-
sary
763 Tü1 sensor error
(compressor
intake)
Check sensor, replace if
necessary
764 Sensor error
Compressor
heater
Check sensor, replace if
necessary
765 Overheating
longer than 5
minutes below 2K
When switching on for the
rst time, check rotary eld,
otherwise phone customer
service
766 Operation for 5
minutes outside
the compressor‘s
functional range
Check rotary eld
ATTENTION
Only customer service personnel authorised by
the manufacturer may carry out service and re-
pair work on the components of the unit.
Note that no malfunction is displayed if the safety
temperature limiter on the electric heating element has
tripped.
“Commissioning”, “Safety temperature limiter”
section.
761 LIN timeout Check cable/contact
762 Tü sensor error
(evaporator intake) Check sensor, replace if
necessary
763 Tü1 sensor error (compressor intake)
Check sensor, replace if necessary
764 Sensor error Compressor heater Check
sensor, replace if necessary
765 Overheating longer than 5 minutes below 2K
When switching on for the rst time, check rotary
eld, otherwise phone customer service
766 Operation for 5 minutes outside the
compressor‘s functional range Check rotary eld

7
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Instructions for qualied technicians
zusätzlich bei reversibler Variante:
1 Übergangsstück
2 Gewindeabdeckungen (3)
3 Isolation für Übergangsstück
Check the delivery for outwardly visible signs of
damage…
Check that nothing is missing from the scope of
supply.
Any defects or incorrect deliveries
must be reported immediately.
NOTE.
Note the unit model.
Overview “Technical data / scope of delivery” or
rating plate on unit.

8We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
ComponentsoFtheunit
FourversionsoFthehydrauliCmoduleareavailable:
HMD 1(E) HMD 1/R(E)
ComponentsoFtheunit
1Safety assembly for heating circuit (insulated)
2Air separator
3Continuous ow heater 6kW
4Flow monitor
5Expansion vessel 12l
6Circulating pump for heating circuit (Energy
efcient circulating pump = E-variant)
7Forward ow outlet
8Fill/empty cock for heating circuit
9Ventilation
10 Forward ow inlet
11 Electrical switch cabinet
12 Control element, regulation
13 Comfort board

9
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Installation
The following applies to all work to be done:
NOTE.
Always comply with the applicable local accident
prevention regulations, statutory regulations,
ordinances, guidelines and directives.
installationloCation
ATTENTION
Install the unit only inside buildings.
The installation area must be frost-free and dry. It must
full the relevant local regulations.
Dimensional drawing and installation plan for
respective model.
transporttoinstallationloCation
To prevent damage during transport, always transport
the unit to nal installation location in its original
packaging.
ATTENTION
The unit must not be lifted up by the switch box
and transported.
www.alpha-innotec.de
D - 95359 Kasendorf
Industriestraße 3
Alpha-InnoTec GmbH
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Ers. d.
$replaces
Ers. f.
Benennung
Zust.
Änderungstext
Datum
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von
Datum
Name
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ArtikelNr.
siehe Typenschild
siehe Typenschild
ATTENTION
Never use components and hydraulic connec-
tions on the unit for purposes of transport.
installation
CAUTION!
Ensure the wall has the necessary load bearing
capacity.
Possible installation situation,
Example: HMD 1(E) with row tank
1 Hydraulic module
2 Buffer storage tank
3 Domestic hot water tank
Hold the drilling template at the right height and
mark the 3 drilling holes…
Note the safety and service clearances required,
see “Installation plan”.
Lift the hydraulic module out of the box:

10 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Remove the top section from the front by pulling on
the recessed grips.
Example: HMD 1:
1 Recessed grips
Remove internal packaging material (transport
safeguards).
Use the anchors and bolts supplied to x the
hydraulic module to the wall:
CAUTION!
Hands and ngers could be crushed during
the following tasks!
The anchors are only suitable for use in the following
types of walls:
•Concrete
•Solid lightweight concrete blocks
•Cavity blocks made of lightweight concrete
•Cellular concrete
•Prestressed concrete - hollow ceiling/oor slabs
•Natural stone with sealed joints
•Solid sand-lime blocks
•Perforated sand-lime bricks
•Solid bricks
•Vertically-perforated bricks
•Hollow oors/ceilings made of clay bricks,
concrete or similar
•Solid gypsum boards
•Gypsum boards and gypsum bre boards
•Particle boards
The board material must be dimensioned with sufcient
thickness to ensure secure xing.
Appropriate xing material must be provided on site for
other types of wall constructions.
ATTENTION
Leaving a gap between the unit and the wall
helps back ventilation and may not be sealed
or closed off.
Cable ducts must be laid at a distance of at
least 2 cm from the hydraulic module.
Forreversiblevariant:
Mount thread covers on the hanger bolts…
Screw adapter with safety component onto hydrau-
lic module.
Following the leak test, use insulation included in
the scope of supply to insulate adapter and safety
component.

11
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
installation/hydrauliCConneCtiontoheating
CirCuit
The connections for the heating circuit are located on
the underside of the unit.
The connection for the safety assembly is on the top of
the unit:
NOTE.
Dimension heating system so that the free com-
pression of the circulating pumps integrated in
the unit always ensures the minimum heating
water ow rate.
Always take into account the connection pipes
between the heat pump and the hydraulic mo-
dule.
Planning manual.
DANGER!
Before opening the unit, disconnect the
system from the power supply and prevent
it from being switched back on!
ATTENTION
When installing the connections, always
secure the connections on the unit against
twisting, to prevent damage to the copper
pipes inside the unit.
Flush heating circuit thoroughly before connecting
the unit to the heating circuit…
see “Flushing, lling and bleeding the system”,
NOTE.
Contamination and deposits in the heating cir-
cuit can cause malfunctions.
Install lling and draining devices, shut-off valves and
non-return valves at the required locations in the
heating circuit.
“Hydraulic connection” documents.
saFetyassembly
The safety assembly for the heating circuit is in the extra
box.
Mount the safety component on the connection provided
on the top of the assembly.
The safety drain of the safety valve must lead into
the drain via a funnel siphon in accordance with the
applicable standards and regulations!
The safety drain must be connected!
expansionvessels
The expansion vessel for the heating circuit is integrated.
Always check whether the size of the expansion vessel is
large enough for the system. If necessary, an additional
expansion vessel must be installed on site according to
the relevant standards and guidelines.
NOTE.
The admission pressure of the expansion vessel
must be adjusted to the system (approx. 0.5 bar
less than the system lling pressure) according
to the calculation to the relevant standards (EN
12828).

12 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Electrical connections
The following applies to all work to be done:
DANGER!
Risk of fatal injury due to electric shock!
Electrical connections may be installed
only by qualied electricians.
Before opening the unit, disconnect the
system from the power supply and prevent
it from being switched back on!
WARNING!
During installation and while carrying out
electrical work, comply with the relevant
EN-, VDE and/or local safety regulations.
Comply with technical connection
requirements of the responsible power
supply company (if required by the latter)!
WARNING!
Install electric connections only according
to the terminal diagram that applies to
your model.
NOTE.
All live wires must be stripped before they are
installed in the cable duct of the switch cabinets!
ATTENTION
The power supply for the heat pump and the
electric heating element must be equipped with
a three-phase automatic circuit-breaker with
at least 3mm contact spacing according to IEC
60947-2.
Note the level of the release current.
Overview “Technical data / scope of delivery”,
“Electric” section.
Example: HMD 1:(E)
1 Terminal strip, power supply cable
- Heat pump
- Heating element
2 Bus cable connection
3 Control voltage
4 230 V inputs
5 Terminal strip, external sensors
6 Return ow sensor
7 Cable routi ng
Example: HMD 1:
1 Flow to the heating circuit/
Domestic hot-water tank
2 Flow from heat pump
3 Return ow sensor - 1.5m
on the hydraulic module
4 Return ow to heat pump

13
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
If the wall penetration is used, the necessary di-
stance from adjacent pipes and cables is ensured.
NOTE.
The control element of the heat and heat pump
regulator can be connected with a computer or
network using a network cable designed for such
purposes, therefore allowing the heating and
heat pump regulator to be controlled remotely.
If such a connection is required, install a shielded
network cable (category 6, with RJ-45 connec-
tor) during the electrical connection work and
connect it parallel to the existing control cable
of the heating and heat pump regulator.
ConneCtbusCable
Strip the BUS cable insulation and push the shield
back over the insulation.
Insert the end of the insulated cable with the shield
into the shield terminal.
Feed the end with the individual cores through one
of the two grommets.
Core assignment:
1 12 V
2 GND
3 LIN
Use cable ties and heat transfer compound to x the
return ow sensor (3) to the return ow (heat carrying
pipe) to the heat pump (4).
Hydraulic connections documents
The electrical connection between the heat pump and
hydraulic module is made using the 3 pre-installed cables
on the heat pump (5m).
On site, the hydraulic module is connected from the
subdistribution board using the following cables
“Terminal diagram” for respective model.
1 Compressor (5 cores)
2 Control (3 cores)
3 LIN-Bus (3 cores, shielded)
4 Heating element load cable (5 cores)
5 Control voltage (3 cores)
6 Subdistribution board
If laid on site:
- Seal reserve conduits on unit side…
Feed the three connection cables through the three
ducts of the wall penetration - use lubricant!
NOTE.
When laying the cable inside the building, ensure
that unshielded power supply cables (outdoor
unit voltage supply) and shielded cables (LIN-
Bus) are laid separately from each other.

14 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Pull off the green bus connector from the bottom
of the control element and connect the cable as
shown in the terminal diagram, then re-attach the
connector to the control element.
After completing all electrical installation work, close
the switch cabinet inside the unit. Close the unit if
no further installation work inside the unit is to be
performed immediately.
Flushing, lling and bleeding
the system
ATTENTION
The system must be absolutely free from
air before commissioning.
Contamination and deposits in the system can cause
malfunctions.
Flushing,Fillingandbleedingtheheating
CirCuit
ATTENTION
Do not exceed a pressure of 2.5 bar when
ushing the unit. The drain line of the hea-
ting circuit safety valve must be closed before
ushing and lling.
Example: HMD 1(E) with row tank-connection
Connect hose to the lling and draining tap and lay
it to a drain…
Connect the lling and drain tap at the hydraulic
module (heating water outlet to the heat pump)…
Close shut-off valves in the hydraulic module on the
heat pump side. Open shut-off valves of the module
on the heating circuit side.
A
H
000
J
offen
offen
zu
1 Filling tap
2 Flow, heating water /
domestic hot water
3 Return ow, heating water
4 Return ow, domestic hot water
5 Drain
“Switching valve” operating manual

15
We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Dismantle the motor of the 3-way valve for the
domestic water heating (accessories). To do so,
remove the U-bolt on the motor base and carefully
pull off the motor from above....
Turn stem through 180° and ush domestic hot
water circuit for approx. 1 minute…
Turn stem through 180° back to starting position
(rounded side of stem points to B)…
Flush heating circuit! If necessary, the heating and
domestic hot water circuit can be ushed at the
same time! To do so, turn stem through 30°…
After completing the ushing and lling procedure,
move stem to the starting position and mount the
motor of the 3-way valve…
The unit is bled automatically when the bleeders
(black cap) of the safety assembly are open. If the
heating circuit is lled or emptied, the bleeding
valve opens…
Open shut-off valves in the hydraulic module on the
heat pump side. Close shut-off valves of the module
on the heating circuit side. Close shut-off valves on
site on the heating pump side:
A
H
000
J
zu offen
zu
1 Filling tap
2 Flow, heating water /
domestic hot water
3 Return ow, heating water
4 Return ow, domestic hot water
5 Drain
Exchange hoses at lling and emptying taps and ush
condenser of the heat pump via return ow…
In addition, open the bleeding valve on the
condenser of the heat pump. Bleed condenser and
then close the bleeding valve again when fully bled.
Insulating the hydraulic
connections
You must insulate the xed piping of the heating circuit,
the connection pipes between the hydraulic module and
the heat pump and the connections of the domestic hot
water tank.
In (R) variant vapour diffusion tight
NOTE.
Insulate in accordance with applicable local stan-
dards and directives.

16 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Control element
DANGER!
Risk of fatal injury due to electric shock!
Electrical connections may be installed
only by qualied electricians.
Before opening the unit, disconnect the
system from the power supply and prevent
it from being switched back on!
In the top part of the unit’s switch box housing there are
4 recesses for xing the control element:
Example: HMD 1
NOTE.
A connection to a computer or a network can
be installed via the left bushing on the bottom
of the control element, thus allowing the hea-
ting and heat pump regulator to be controlled
remotely. One precondition is that a shielded
network cable (category 6) has been installed
through the unit as part of the electrical connec-
tion work.
Operating manual for the heating and heat pump
regulator, version “Qualied technician”, “Web
server” section.
If this network cable is available, insert the net-
work cable’s RJ-45 plug into the left bushing of
the control element.
NOTE.
The network cable can be retrotted at any
time.
Commissioning
Follow the instructions in the section entitled
“Commissioning” in the operating manual for
your heat pump.
saFetytemperaturelimiter
A safety temperature limiter is built into the electric
heating element. In the event of a malfunction in the
heat pump or air in the system, check whether the reset
button of the safety temperature limiter has tripped. If
this is the case, push in the button.
Example: HMD 1(E)
1 Safety temperature button on
electric heating element
2 Reset knob

17
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83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Dismantling
DANGER!
Risk of fatal injury due to electric shock!
Electrical connections may be installed
only by qualied electricians.
Before opening the unit, disconnect the
system from the power supply and prevent
it from being switched back on!
WARNING!
Only qualied heating or cooling system
technicians are allowed to remove the unit
from the system.
WARNING!
Only qualied cooling system technicians
are allowed to dismantle the unit and its
components.
ATTENTION
Recycle or provide for proper disposal of unit
components in accordance with the applicable
regulations, standards and directives.
removaloFthebuFFerbattery
ATTENTION
Before scrapping the heating and heat pump re-
gulator, remove the buffer battery on the pro-
cessor board. The battery can be pushed out us-
ing a screwdriver. Dispose of battery and elec-
tronic components in keeping with environmen-
tal considerations.
HMD 1/R(E):
1 Safety temperature limiter and
Reset button (under cap)
switChingonFortheFirsttime
When the control voltage is switched on the following
may be displayed:
If this display disappears the unit can be operated
properly. Otherwise, check the 3-phase cable for the
BUS connection to the outdoor unit.
NOTE.
When starting up for the rst time, the heating
up phase until the compressor starts can take
several hours.

18 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Technical data / scope of delivery
Unit designation
HMD 1 HMD 1/E HMD 1/R HMD 1/RE
Accessory for heat pump model LWD 50A ı LWD 70A • applicable ı — not applicable
• ı — • ı — — ı • — ı •
Functionally necessary • applicable ı — not applicable
• • • •
Installation location Indoors ı Outdoors • applicable ı — not applicable
• ı — • ı — • ı — • ı —
Maximum indoor temperature °C
— — 35 35
Maximum relative humidity %
— — 60 60
Conformity CE
• • • •
Heating circuit Heating circuit efficiency pump integrated: • yes — no
— • — •
Heating circuit free compression ∆p (factory setting) ı Maximum free compression
∆pmax ı Volume flow bar ı bar ı l/h
0,46 ı 0,46 ı 1600 0,46 ı 0,54 ı 1600 0,46 ı 0,46 ı 1600 0,46 ı 0,54 ı 1600
Volume flow: minimum flow rate ı maximum flow rate l/h
900 ı 2000 900 ı 2000 900 ı 2000 900 ı 2000
max. permissible operating pressure bar
3 3 3 3
Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar
• ı 12 ı 1,5 • ı 12 ı 1,5 • ı 12 ı 1,5 • ı 12 ı 1,5
Buffer tank integrated: • yes — no
— — — —
Heat metering and/or flow rate display integrated: • yes — no
• • • •
General unit data Housing dimensions (Height ı Width ı Depth) mm ı mm ı mm
695 ı 550 ı 330 695 ı 550 ı 330 695 ı 550 ı 330 695 ı 550 ı 330
Total weight kg
25 25 25 25
Connections Heating water inlet (forward flow) ...
R 1" Innen R 1" Innen R 1" Innen R 1" Innen
Hot water outflow (forward flow) ...
R 1" Innen R 1" Innen R 1" Innen R 1" Innen
Electrics Voltage code ı three-phase circuit breaker heat pump **)
3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16
Voltage code ı circuit breaker control voltage **)
1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16
Voltage code ı circuit breaker electric heating element **)
3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10
Protection type IP
20 20 20 20
Output electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW
6 ı 4 ı 2 6 ı 4 ı 2 6 ı 4 ı 2 6 ı 4 ı 2
Heating circuit pump: maximum power consumption ı current consumption kW ı A
0,12 ı 0,53 0,07 ı 0,31 0,12 ı 0,53 0,07 ı 0,31
Safety equipment Safety assembly heating circuit ı Safety assembly heat source in scope of delivery: • yes — no
• ı — • ı — • ı — • ı —
Heating and heat pump regulator Incl. in scope of delivery: • yes — no
• • • •
Overflow valve integrated: • yes — no
— — — —
** comply with local regulations
813304b 813305b 813307 813308

19
We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Unit designation
HMD 1 HMD 1/E HMD 1/R HMD 1/RE
Accessory for heat pump model LWD 50A ı LWD 70A • applicable ı — not applicable
• ı — • ı — — ı • — ı •
Functionally necessary • applicable ı — not applicable
• • • •
Installation location Indoors ı Outdoors • applicable ı — not applicable
• ı — • ı — • ı — • ı —
Maximum indoor temperature °C
— — 35 35
Maximum relative humidity %
— — 60 60
Conformity CE
• • • •
Heating circuit Heating circuit efficiency pump integrated: • yes — no
— • — •
Heating circuit free compression ∆p (factory setting) ı Maximum free compression
∆pmax ı Volume flow bar ı bar ı l/h
0,46 ı 0,46 ı 1600 0,46 ı 0,54 ı 1600 0,46 ı 0,46 ı 1600 0,46 ı 0,54 ı 1600
Volume flow: minimum flow rate ı maximum flow rate l/h
900 ı 2000 900 ı 2000 900 ı 2000 900 ı 2000
max. permissible operating pressure bar
3 3 3 3
Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar
• ı 12 ı 1,5 • ı 12 ı 1,5 • ı 12 ı 1,5 • ı 12 ı 1,5
Buffer tank integrated: • yes — no
— — — —
Heat metering and/or flow rate display integrated: • yes — no
• • • •
General unit data Housing dimensions (Height ı Width ı Depth) mm ı mm ı mm
695 ı 550 ı 330 695 ı 550 ı 330 695 ı 550 ı 330 695 ı 550 ı 330
Total weight kg
25 25 25 25
Connections Heating water inlet (forward flow) ...
R 1" Innen R 1" Innen R 1" Innen R 1" Innen
Hot water outflow (forward flow) ...
R 1" Innen R 1" Innen R 1" Innen R 1" Innen
Electrics Voltage code ı three-phase circuit breaker heat pump **)
3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16 3~/N/PE/400V/50Hz ı C16
Voltage code ı circuit breaker control voltage **)
1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16 1~/N/PE/230V/50Hz ı B16
Voltage code ı circuit breaker electric heating element **)
3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10 3~/N/PE/400V/50Hz ı B10
Protection type IP
20 20 20 20
Output electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW
6 ı 4 ı 2 6 ı 4 ı 2 6 ı 4 ı 2 6 ı 4 ı 2
Heating circuit pump: maximum power consumption ı current consumption kW ı A
0,12 ı 0,53 0,07 ı 0,31 0,12 ı 0,53 0,07 ı 0,31
Safety equipment Safety assembly heating circuit ı Safety assembly heat source in scope of delivery: • yes — no
• ı — • ı — • ı — • ı —
Heating and heat pump regulator Incl. in scope of delivery: • yes — no
• • • •
Overflow valve integrated: • yes — no
— — — —
** comply with local regulations
813304b 813305b 813307 813308

20 We reserve the right to modify technical specifications without prior notice.
83053600bUK – Translation of the operating manual © Alpha-InnoTec GmbH
Free compression
Bezeichnung:
∆p PI freie Pressung Pumpenleistungsstufe I
∆p PII freie Pressung Pumpenleistungsstufe II
∆p PIII freie Pressung Pumpenleistungsstufe II
Legende:
“ ” Volumenstrom Heizwasser in m3/h
Änd./ÄM/Ersteller/Datum
Datei: 812027 Freie Pressung HMD 1
812027
Seite: 1/1
Zeichnungsnummer:
Freie Pressung HMD 1
812027
- /PEP 006-2011 / Liska / 12.07.2011
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,0 0,5 1,0 1,5 2,0 2,5 3,0
∆p (bar)
∆p PI
∆p PII
∆p PIII
“ ” (m3/h)
hmd1(r)
hmd1/(r)e
812028
Legend:
“ ” Heating water volume ow in m3/h
∆p Free compression (factory setting)
∆pmax Maximum free compression
812027
Legend:
“ ” Heating water volume ow in m³/h
∆p PI Free compression, pump power level I
∆p PII Free compression, pump power level II
∆p PIII Free compression, pump power level III
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,0 0,5 1,0 1,5 2,0 2,5 3,0
∆p (bar)
∆pmax
∆p
“ ” (m3/h)
Bezeichnung:
D t i 812030 F i P HMD 1/( R )E
812031
Seite: 1/1
Zeichnungsnummer:
Legende:
“ ” Volumenstrom Heizwasser in m3
/
h
∆p freie Pressung (Werkseinstellung)
∆pmax freie Pressung maximal
Freie Pressung HMD 1/( R )E
812031
- /PEP 001-2012 / Liska / 23.05.2012
Änd./ÄM/Ersteller/Datum