SmartHeat classic Product guide

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By choosing the heat pump classic you have decided to purchase a proven product. The unit
considers the nowledge acquired in many years of using heat pumps with state-of-the-art
technique.
The heat pumps of the SmartHeat product range distinguish themselves by an optimization
according to ecological points of view. The increasing performance as well as the use of
coolants which are very harmful to the environment are to important criteria which had been
ta en into consideration when designing the units.
A high performance equals to a high ratio of regenerative environment (heat) energy, which is
used to heat living rooms - and thus complies with a little part
of CO
2
-emissions and little electrical power consumption. When operating a heat pump the
user thus contributes to the protection of our environment and saves heating cost.
While using non-toxic, non-explosive and non-flammable coolants ozone-depleting chlorinated
hydrocarbons are being replaced.
Please thoroughly read the present operating instructions and ma e sure to observe the safety-
relevant notes.

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Inhaltsverzeichnis
1 General notes .............................................................................................................................................................. 3
1.1 Limitation of liability ........................................................................................................................................ 3
1.2 Duty of care of the operator ............................................................................................................................. 3
1.3 Basic instructions .............................................................................................................................................. 4
2 Purpose ....................................................................................................................................................................... 4
2.1 Proper use .......................................................................................................................................................... 4
3 Product description .................................................................................................................................................... 5
3.1 Functional description / Application ran e .................................................................................................... 5
3.2 Option i - Inverter technolo y ......................................................................................................................... 7
3.3 Option R - Active coolin ................................................................................................................................. 7
3.4 Option - Passive coolin .................................................................................................................................... 9
4 Device view .............................................................................................................................................................. 11
Transportation .................................................................................................................................................................. 12
5 Installation ................................................................................................................................................................. 13
5.1 General notes ................................................................................................................................................... 13
5.2 Minimum clearances for the installation ...................................................................................................... 13
6 Assembly ................................................................................................................................................................... 14
6.1 General notes ................................................................................................................................................... 14
6.2 Preparation ...................................................................................................................................................... 14
6.3 Connection at the side of the heat source ...................................................................................................... 14
6.4 Connection of the heatin system .................................................................................................................. 15
6.5 Electrical connection ....................................................................................................................................... 16
7 Commissioning .......................................................................................................................................................... 19
7.1 General notes ................................................................................................................................................... 19
7.2 Preparation ...................................................................................................................................................... 19
7.3 Notes for the proper aeration and de-aeration ............................................................................................. 19
7.4 Control ............................................................................................................................................................. 21
8 Maintenance, cleaning and care instructions ............................................................................................................. 22
8.1 Maintenance .................................................................................................................................................... 22
8.2 Cleanin of the heatin system ...................................................................................................................... 22
8.3 Care .................................................................................................................................................................. 22
9 Failure ....................................................................................................................................................................... 23
10 Dry heating ........................................................................................................................................................... 23
11 Decommissioning .................................................................................................................................................. 24
12 Hydraulic examples ............................................................................................................................................... 25
12.1 Basic notes ....................................................................................................................................................... 25
12.2 Hydraulic schematics ...................................................................................................................................... 25
13 Appendix ............................................................................................................................................................... 31

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1 General notes
1.1 Limitation of liability
All technical information data and notes for installation and operation included in these instructions are state-of-the-art
at the time of printing and are performed considering our present experiences and nowledge in all conscience. It is not
possible to derive any claims from the information, illustrations and descriptions of these instructions.
The manufacturer does not assume any liability for damages due to:
- Improper use
- Use of not admitted spare parts
- Unauthorized retrofitting of any ind
- Technical changes
- Improper changes of the coolant quantity
- Non-observance of the operating and installation instructions
- Damages resulting of the non-observance of applicable standards
1.2 Duty of care of the operator
In the design and completion of heat pumps all corresponding EC directives, DIN and VDE standards and regulations
are complied with (refer to EC declaration of conformity).
The relevant VDE-, EN- and IEC- standards must be complied with for electrical connection of heat pumps. The local
connecting conditions of the utilities must be observed.
The operator must in particular ma e sure that
- The technically conditioned minimum and maximum values does not fall short or are exceeded.
- The machine is only operated in proper, functional status and that in particular it is regularly chec ed if the
safety installations are wor ing properly.
- Only sufficiently qualified and authorized staff who nows the operating instructions and in particular the in-
cluded safety instructions is allowed to install maintain and repair the machine.
- All safety and warning instructions applied on and in the machine must not be removed and must be main-
tained legible.
These operating instructions must be stored in the range of the controller. It must be guaranteed that all persons who
have to perform activities on the machine can read the operating instructions at any time.
If it is necessary to switch off the complete system during the heating period,
there is a ris that the system freezes. In order to avoid damages caused by frost,
empty the water circuit of the system after complete switching off or decommis-
sioning of the system.

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1.3 Basic instructions
The heat pump must only be operated with all connected media.
A flow monitoring in the heating system must be guaranteed by the installation's
operator.
Before opening the unit it must be made sure that the heat pump is zero potential.
Only a specialist is allowed to set the control to manual operation for a short term
since in this way all control and safety functions are inoperative.
The unit must be installed on a sustainable, flat and horizontal ground.
The transportation of the heat pump must be performed with care. It is only al-
lowed to tilt the machine cabinet to more than 45° for a short term.
Only operate the heat pump within the usage frequency (refer to the data sheet)
(in Germany 50Hz).
In emergency situations decommission the heat pump resp. switch in currentless
condition (main and control voltage).
Only expert approved specialists are allowed to wor on the cooling circuit.
An external separator must be provided for all electrical supplies of the machine
(e.g. main switch).
The refrigerant circuit of the heat pump must be controlled by certified staff, ac-
cording to the regulation EC No 842/2006, at least every twelve months in order
to chec if the system is tight.
2 Purpose
2.1 Proper use
The heat pumps can be used in existing or newly constructed heating systems. The heat pump is only designed to heat
up heating water and service water. The existing operating and installation instructions are binding for the following
heat pumps:
classic serie:
BW / WW / DI
Please find the technical data of your heat pump in the annex.
Type Operating limit ∆T
Heating circuit BW / WW 25 … 55°C 5-7K
Heating circuit DI 25 … 55°C 5-7K
Heating circuit HT 25 … 65°C 5-7K
Heating circuit Option i 25 … 60°C 5-7K
Heat source BW / BW Option i -10 … 15°C 3-5K
Heat source WW / WW Option i 5 … 15°C 3-5K
Heat source DI -10 … 15 °C 3-5K

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3 Product description
3.1 Functional description / Application range
Direct expansion - Heat Pump: classic DI
The SmartHeat classic DI heat pump operates with direct evaporation of the refrigerant at the heat source and avoids
installation of a brine water circuit in this way. In this case, the refrigerant flows through many parallel polyethylene-
coated safety copper tubes and evaporates. The copper tubes have been routed over an area as ground collectors and
ta e the evaporation heat directly from the ground. As the refrigerant can evaporate well below freezing point, there is
no need to route the ground collector in a frost-free area. Not too deep routing has the advantage that rain, melt water
and sun radiation can become quic er effective at the ground collector (evaporator) and the energy supply is made
available as usable energy by the heat pump. The heat emitting side of the SmartHeat classic heat pump operates with a
heat exchanger as a condenser and, in this way, heats the water for heating and domestic hot water (DHW).
Brine-water heat pump: SmartHeat classic BW
The SmartHeat classic BW heat pump is wor ing with a heat exchanger as evaporator and a heat exchanger as conden-
ser connected to a brine circuit and thus heats up water for heating purposes as well as drin ing water. The ground
collector of the BW system consists of brine water conveying PE pipes which are horizontally installed in a frost-free
area. Optionally (e.g. in case of shortage of space) deep probes may be used. In both cases the brine water is conveyed
as heat carrier medium through the enclosed circuit (brine circuit) by means of the pump. The required brine recircula-
tion pump as well as the expansion tan can be installed in the building or in an outside shaft.
Provide for sufficient aeration of the heat source circuit!
Water-water heat pump: SmartHeat classic WW
The design of the SmartHeat classic WW heat pump is very similar to the design of the BW heat pump. However, in-
stead of the brine circuit an extraction well and an injection well are connected which convey ground water to the heat
pump. The WW heat pump is adapted to the higher temperature level of ground water compared to a brine circuit.
Also the necessary precautions had been ta en in order to allow a trouble-free operation also under the special re-
quirements of ground water (corrosion due to contents and free oxygen as well as accumulation of mud in the heat
exchanger).
The SmartHeat classic WW heat pump also heats up water for heating purposes in a heat exchanger for heating pur-
poses and hot water preparation designed as a condenser. The integration of a decoupling storage in the hot water
circuit reduces the frequency of operation of the heat pump.
Provide for sufficient aeration of the heat source circuit!

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Guidance value for the water quality
The ground water which is used as heat source must fulfil the following listed minimum requirements:
Soldered copper Alfa Nova
Conductivity in µ-Siemens / cm * < 450 < 700 +
pH - value
< 6
6 – 7
7 – 9
> 9
< 6
6 – 7
7 – 9
> 9
-
o
+
-
Total hardness in °dH < 15
> 15
< 15
> 15
+
o
Chloride in ppm < 50 < 100 +
Sulphate in ppm
< 50
50 – 100
> 100
< 50
50 – 100
> 100
+
o
-
Carbon dioxide in ppm
< 5
5 – 10
> 10
< 5
5 – 10
> 10
+
o
-
Ratio [HCO
3
-
] / [SO
4
2-
] > 1 > 1 +
Nitrate in ppm < 100 < 100 +
Oxygen in ppm
< 1
1 – 8
> 8
< 1
1 – 8
> 8
+
o
-
Ammonia in ppm
< 2
2 – 10
> 10
< 2
2 – 10
> 10
+
o
-
Solute iron in ppm
< 0,2
0,2 – 0,5
>0,5
< 0,2
0,2 – 0,5
>0,5
+
o
-
Solute manganese in ppm
< 0,05
0,05 – 0,1
<0,1
< 0,05
0,05 – 0,1
<0,1
+
o
-
Hydrogen sulfide in ppm < 0,05 < 0,05 +
free chlorine in ppm < 0,5 < 0,5 +
Solids (suspended) mg/l;
Imperatively avoid fibre
substances
> 10
< 10
> 10
< 10
-
o
*at 20°C
+  The used materials are normally of good resistance.
o  If several factors are evaluated with o, corrosion can appear.
-  It is advised against using a water heat pump.
Furthermore, we recommend the installation of a flow meter in the well water circuit by the customer in order to
protect the heat pump against non-continuous volume flows and thus against possible damages.

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3.2 Option i - Inverter technology
The advanced inverter technology will fit to the compressor speed stepless exact to each request heating or cooling
demand. An especially power-saving and efficient wor with high annual wor figures is guaranteed in comparison to
fixed speed compressors by this exact, intelligent and soft regulation.
3.3 Option R - Active cooling
General notes
The classic module active cooling allows you to operate your heat pump heating unit also with a cooling function in
addition to the nown hot and warm water preparation functions. These cooling function enables the cooling of the
building in relation with an appropriate distribution system when it is operated in summer.
Since the module active cooling is based on the use of a cooling circuit of the heat pump there is a possibility of cooling
also at increased outside and earth temperatures.
Operation
The heat pump module active cooling is based on the reversibly designed refrigerating circuit which is integrated in the
heat pump basic unit, i.e. the heat pump is wor ing in reverse operation. In this way it is possible to cool the heating
water in summer by means of a heat pump. The living rooms are cooled down and the ground is heated up.
Since the module active cooling is based on the use of the heat pump compressor the accruing power consumption is
comparable to the power consumption during the heating period.
Proper use
The classic module active cooling is an optional module for the upgrading of your heat pump device during production
at the factory. The indications for the following heat pumps are binding:
classic serie: BW / WW
The classic module active cooling represents a firmly combined unit together with
the classic heat pump.
The manufacturer cannot be held liable for damages and malfunctions which can
be traced bac to non-observance of the operating and installation instructions.
It is necessary to install safety devices. Please request any further information at
the service hotline: +49 3843 / 2279-111.

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Planning and dimensioning
For planning and dimensioning of heating and cooling spaces consider the common technical rules.
For maximum transferable cooling capacity it can be calculated with 100 W/m
2
for wall and sealing spaces. For under-
floor spaces, which are used for cooling, lower transferring capacities should be considered – at maximum 20 … 25
W/m
2
. The surface of the floor is only suitable in lower rate for cooling a building.
Remar : During cooling operation the relative humidity of the air is raising. This may lead to undershooting the dew
point temperature and therefore condensing of water at the cooled spaces. If the condensing ta es place at the surface
or inside of the walls, there is the danger of damages by mildew.
Please consider that the room temperatur should not be lower than 6 K below
outside air temperature with respect to health!
Electrical connection
The module active cooling reveives the required electric power with the power supply of the heat pump. An additional
power supply is not required.
Hydraulic connection
For hydraulic connection there are no differences to heat pumps without the module active cooling. The outgoing and
bac flow maintain their flow direction and are changing to cooling outflow and cooling bac flow. Additional hydraulic
connections for cooling function are not available.
During start-up of the heat pump with module „Active Cooling“ ta e care of good
flow in heating circuit! Have a loo at the data sheet of the heat pump! If this flow
is not ensured, there is the possibility of freezing of the heat exchanger, if the heat
pump operates in cooling mode during start-up unintentionally. This may lead to
damages at the heat exchanger! A flow monitoring in the heating system must be
guaranteed by the installation's operator.
During start-up with cold heating water this may be possible also at sufficient
volume flow! The water of heating circuit should not be colder than 25°C at the
first start-up!

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3.4 Option - Passive cooling
General notes
The module for externally passive cooling extends the application range of your classic heat pump by the function to
cool the building during the summer. This module is available for all classic-models of the series BW (brine/water) and
WW (water/water). Cooling of the heating water during the summer months is achieved be transferring heat from the
heating circuit to the brine circuit or the groundwater. When combining with a suitable heating and cooling system in
the house (combination of floor, wall and ceiling heating) the cooling effect can be realised for the desired rooms. As
the module for passive cooling goes without using the refrigerating circuit of the heat pump, this gives a very reasonable
possibility regarding energy consumption for cooling.
Application areas
The module for externally passive cooling is based on a plate heat exchanger, as well as switching over components (3-
way-valve), which has to be installed externally, and activating of cooling mode of the controller. Due to this combina-
tion it is possible, to cool down the heating water during the summer via the plate heat exchanger. In this case, the heat
is ta en up from the brine water or the ground-water and transported into the ground. The living spaces will be cooled
and the ground heated up.
By using the generously dimensioned heat exchanger, the separation of the heating water and brine water or ground-
water side continues to be ept. Filling of the heating side with antifreeze, li e on the brine side, is not necessary. As
the module for passive cooling operates without using the heat pump compressor, the occurring electricity consump-
tion is low by comparison. Only the two circulating pumps of the heating side as well as the brine water side or ground-
water side will be operated.
As the function of the passive cooling is realised only via a heat exchange, a reduction of the cooling effect has to be
assumed with increasing ground or ground-water temperature. The heat, transferred into the ground will, at least in
part, be stored and ta en bac when need for heating starts. This leads to an improvement of the capacity and annual
operating data and can, by this, reduce the incurred electricity costs. In principle, the hot-water preparation has priority
over the cooling function.
The achievable cooling capacity cannot be given as a fixed value. It depends on the lay-out of the plate heat exchanger,
as well as dimensioning of the cooling surfaces and the brine water or well system. A reduction of the cooling capacity
during the summer can occur especially in brine water systems, as the ground continues to be heated up. With increas-
ing brine temperatures the transferable cooling capacity of the heat exchanger is decreasing.
Specification-conform application
The classic-module for passive cooling is an optional module to upgrade your heat pump device during manufacture.
The information is applies for the following heat pumps:
classic serie: BW / WW
The classic–module for passive cooling is a unit solidly connected with the classic-
heat pump.
The manufacturer will not be liable for damages and operation interruptions
caused by not observing the operating and assembly instructions.
Please request any further information as well as a commissioning log at the ser-
vice hotline: +49 3843 / 2279-111.

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Planning
Observe the general technical rules for planning or lay-out of the heating and cooling surfaces. As maximum transfera-
ble cooling capacity, 100W/m² can be assumed for wall and ceiling surfaces. For floor surfaces, to be used for cooling,
smaller transfer capacities have to be assumed – at maximum 20 ... 25 W/m² - , as the energy cannot or only to a lower
degree be transferred by the floor.
Information: As the room air is also cooled down in cooling operation, the relative humidity of the air increases. This
leads, in case of undercutting the dew point temperature, to condensation of water on the cooled locations. If this
condensation occurs, for instance, on or inside the walls, there is the danger of damage to the building from moisture
and mould.
Please observe that the minimum room temperature, also for health reasons,
should not be less than 6 K below the respective outside temperature.
Electrical connection
The module for externally passive cooling or the components, necessary for its operation are supplied via the mains of
the heat pump basic device. A separate supply is not necessary.
Hydraulic connection
There are no differences to the classic-heat pump series without cooling module regarding the hydraulic connection of
the heat pump device. The heating flow and return eep their flow direction and become refrigerant flow (outlet) and
return (input). Additional hydraulic connections (separate flow or return) for the cooling function do not exist.
Due to the possible mutual negative influence of the cooling operation in summer and the warming of domestic hot
water (DHW), also the planned storage systems should undergo a thorough chec .
In principle, the use of combination storages cannot be recommended. Because of the large hot-water proportion and
the difficult to predict flow and layer conditions, a significant cooling of the drin ing water may occur during cooling
operation. In principle, the tendency of heating water mixing and connected to this, cooling of the hot water is smaller
in double shell storages than in combination storages. However, it cannot be fully excluded. As a consequence, the
operating time of the heat pump, as well as the electricity consumption for hot-water preparation would be increased;
the cooling effect would be reduced.
For both storage variants is still valid that the connection of a solar thermal plant ma es no sense if a cooling function
has to be realised. The solar plant would again heat up the cooled heating water in the lower storage region, due to
which the cooling will be significantly reduced and possibly even reversed.
Therefore, we recommend for an intended use of cooling also the use of two separate storages for hot-water prepara-
tion and as a heating buffer. A mutual influence of the cooling and hot water preparation will be avoided by this. Further
more, the possibility exists to integrate a solar thermal plant to support warming of domestic hot-water.

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4 Device view
Fig.
: P
erspective view
,
illustration similar
Fig.
: Isometr
ic view open
Fig.: rear view
Fig.: side view
Wärmequelle Eingang
heat source inlet
Heizung Vorlauf
heating flow
Heizung Rüc lauf
heating bac flow
Wärmequelle Au
s
gang
heating source outlet
Ele troleitungen
ele trical lines
Do umente
n
mappe
document folder
Regelungseinheit
control unit
Bedieneinheit
operator control
Inverter
inverter

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Transportation
Before delivery our products are chec ed if they are without damages and functional and finally they are pac ed.
In order that the cooling circuit and the function of compressors are not impaired it is necessary to transport the heat
pump vertically.
Imperatively avoid serious impacts. The sensitive spring-supported bearing of the compressors might get damaged.
Observe the weight of the heat pump and use appropriately dimensioned transportation means. It is recommended to
use a lift truc or a similar device in order to transport the unit to the installation place.
The transportation of the heat pump must be performed with care. It is only al-
lowed to tilt the machine cabinet to more than 45° for a short term in order to
insert it.

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5 Installation
5.1 General notes
Install the heat pump in a way that the field service can easily perform commissioning and maintenance wor s and en-
sure free wor ing space on all sides (refer to the recommended minimum clearances).
The installation space must be dry and frost-free and have a plane and horizontal ground. The ground must be dimen-
sioned according to the weight of the SmartHeat classic heat pump. The connection to the heating and heat source
system should be as short as possible.
When installing the heat pump among others the requirements of the correspond-
ing accident prevention and the regulations of safety and health at wor .
Environmental temperature max. 40°C
Environmental temperature min. 5°C
Environmental humidity max. 80 % (not condensed)
Ensure a dry, frost-free installation space and ma e sure that the floor structure
escapable of bearing the unit!
5.2 Minimum clearances for the installation
Fig.: Minimum clearances classic
Observe the distance to other neighbouring units (expansion tan s, storages, etc.)!
50cm 50cm
25cm
120cm

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6 Assembly
6.1 General notes
The following connections must be made at the heat pump:
- Input/output heat source
- Flow/return heating
- Power supply
- Ventilation and exhaust air heat recovery (Option L)
6.2 Preparation
The connections for the heat pumps of the classic series are at the rear of the device. Comprehensive hydraulic acces-
sories such as e.g. connection its, switching units, etc. (refer to price list) are available for the optimum connection in
the SmartHeat system accessories.
The heat pumps are integrated in the heating networ and for drin ing water preparation it may be quite different
depending on the application. In any case it must be observed that it is necessary to wor with spreading between the
flow and return from 3 – 4 K resp. 5 – 7 K on the heat source and heating side in order to attain the values indicated on
the data sheets resp. in order to avoid malfunctions. Compared to traditional incinerators of higher mass flows, i.e.
larger pipe cross sections and corresponding pump designs.
6.3 Connection at the side of the heat source
SmartHeat classic DI
The sensor of the thermostatic expansion valve has to be removed from the tube before soldering, when connecting
the connecting line to the machine. The thermostatic expansion valve and the sensor have, absolutely, to be cooled
during soldering. After soldering, the sensor has to be reconnected to the tube at the original position.
Attention has to be paid to sufficient thermal contact.
SmartHeat classic BW
Connect input/output heat source at the heat pump according to the designation.
Do not forget the safety devices and the expansion vessel when installing the heat
source!
A dirt trap should be mounted at the heat source input of the heat pump in order
to protect the evaporator against soiling. Additionally it is necessary to install a
micro air bubble separator in the heat source system.
Produce the brine before filling the system.
The brine concentration should have a frost protection of at least -15°C.
Only use anti-freeze on the basis of monoethylene glycol or propylene glycol basis.

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SmartHeat classic WW
Connect input/output heat source at the heat pump according to the designation.
Do not forget the safety devices and the expansion vessel when installing the heat
source!
A dirt trap should be mounted at the heat source input of the heat pump in order
to protect the evaporator against soiling. Additionally it is necessary to install a
micro air bubble separator in the heat source system.
The ground water which is used as heat source must comply with the minimum
requirements mentioned under item 3.
6.4 Connection of the heating system
Before connecting the heat pump to the heating system it is necessary to rinse the heating system in order to remove
possible soiling, remainders of sealing material or other materials. Accumulation of remainders in the condenser can
result in a complete failure of the heat pump. After having performed the installation of the heating system, fill, bleed
and squeeze off the heating system.
For the optimum connection comprehensive hydraulic accessories are available from the SmartHeat system, such as
e.g. connection its, switching units, etc. If inappropriate connection material is used for the hydraulic installation strong
noise development, malfunctions or material damages might occur! The integration of the heat pump into the heating
networ and for drin ing water preparation may be very different depending on the respective application. The hy-
draulic connection scheme detailed in the annex shown a corresponding option.
Do not forget the safety devices and the expansion vessel when installing the heat-
ing system!
Before commissioning the heat pump, it is necessary to guarantee frost-
protection. It is necessary to ma e sure that the hydraulic system does not freeze
when the heat pump is switched off or fails.
The minimum heating water throughput of the heating pump must be made sure
in any operating status of the heating system.

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6.5 Electrical connection
General notes
Wor on the opened heat pump cabinet and connection box must only be carried out in dead switched status and by
an approved electrician or services technician. All components, necessary for the power supply and control, are in the
upper half of the heat pump cabinet.
The necessary cross section of the cable depends on the power consumption of the heat pump. Observe the technical
connection conditions of the corresponding energy utilities as well as the VDE 0100.
Ma e sure to apply a right rotating field when connecting the supply lines for the
main current (possibly special tariff). In case of a wrong rotating field the heat
pump does not have any output and is getting damaged.
The compressor is protected against thermal overload. The fusing and the motor
protective switch for the heat pump as well as the separator from the networ
must be produced by the system builder.
In case of an extension of the sensor connection line, it is necessary to use a line
cross section of at least 0.75 mm².
Do not install the sensor cable together with the current-carrying conductions!
After installation and before commissioning of the system, it is necessary to chec and document the earth conductor
resistance and the isolation resistance according to DIN VDE 0701 and DIN VDE 0702. These tests must be repeated
according to the intervals applicable on site or according to the DIN VDE regulations of the series DIN VDE 0701 and
0702 (commissioning, re-commissioning, etc.).
The terminal assignment diagram of the corresponding heat pump type applies. It
is available in the machine and at the appendix of this manual.

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Responsibilities for the electrical cabling
For electrical installation of different connection, different responsibilities are applicable. Please observe the following
legal regulations:
 The local power supply company is responsible for the connection to a house connection (electricity meter).
 An electrical company approved by the power supply company is responsible fort he installation and connec-
tion of the supply line between the electricity meter, fuses, main switch, motor protective switch and terminal
box.
 Heating engineers authorizes by SmartHeat or correspondingly qualified electricians may perform the electri-
cal connection of the heat pump. Further special nowledge which the installer gathers during training at
SmartHeat is required for such wor s.
 It must be possible to completely separate the heat pump from the networ and control tension via one or, if
applicable, several separate external main switches which are upstream to the terminal box. The install-
er/operator is responsible for installing and connecting the external separator (main switch).
Electrical connections
The design of the electrical supplies and electrical main components are performed by the electrical specialized con-
tractor depending on the local conditions.
The following electrical supplies must be available at the installation site of the heat pump:
1-stage
1 x supply heat pump 3/N/PE ~ 50Hz / 400V
1 x supply control voltage 1/N/PE ~ 50Hz / 230V
1 x heating coil 3/N/PE ~ 50Hz / 400V
Option i 400 V
1 x supply heat pump 3/N/PE ~ 50Hz / 400V
1 x supply control voltage 1/N/PE ~ 50Hz / 230V
1 x heating coil 3/N/PE ~ 50Hz / 400V
Option i 230 V / Option 230 V
1 x supply heat pump 1/N/PE ~ 50Hz / 230V
1 x supply control voltage 1/N/PE ~ 50Hz / 230V
1 x heating coil 1/N/PE ~ 50Hz / 230V

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Fig.: Connecting of
PSD10122**
and PSD10162** Inver
t
er
Fig.: Connecting of
PSD10244 Inverter
Note:
To ensure conformity to the EMC directive, use shielded cable with tape +braid shields (SN/ST). The cable can also
be laid in steel and copper cableways. Earth the shield with 360° a metal clamp on both ends of the cable, as close
as possible to the terminals. In case of connection of the shield to the drive earth terminal (not recommended) , the
shield has to be twisted. The twisted part must be left as short as possible, and the length must not exceed five
times the width.
For PSD10122** and PSD10162** it is recommended to use a ferrite cable core (e.g. Fair-Rite 2646665702) round-
ing earth wire only, located just in front of the drive earth terminal .
Flow monitor source: The system pressure of the source circuit can be monitored and be used to switch
off the heat pump in case of inadmissible deviations, in particular in case of lea ages.
The flow monitor must be applied on the provided terminals in the heat pump. To
do so, it is necessary to remove the existing bridge.
 The outputs are capable of bearing maximum 1.0 A.
 Summarized the outputs must be charged at maximum 4.0 A.
 For higher connected loads uncoupling relays must be provided.

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7 Commissioning
7.1 General notes
In order to guarantee a proper commissioning, it should be performed by a service partner who is authorized by the
manufacturer. Under certain conditions it is related to a prolongation of the guarantee (cf. guarantees).
7.2 Preparation
Ma e sure that:
- all necessary connections of the heat pump required for heating water and service water
as well as for the heat source had been performed.
- the device, the heat source system as well as the heating system are properly rinsed,
filled and aerated.
- all shut-off valves in the heating and heat source circuit are opened.
- the settings of the heat pump controller are adapted to the heating system according to
the operating instructions
- the connection and the fusing of the electrical supply lines is performed
- all screw connections are tight
- the mains switch is set to “ON” resp. “I”.
7.3 Notes for the proper aeration and de-aeration
It is commonly found that the heat pump heating systems do not wor properly since the heating circuit does not have
the necessary volume flow. This is resulting in a triggering of the safety-related equipment of the heat pump.
In case of insufficient or no flow in the heat exchanger of the heating circuit this will lead to a failure of high pressure. It
cannot be excluded that in case of insufficient hot water flow also the safety temperature limiter will switch off the
system. The enumerated failures are caused in the peripheral and in very rare cases in the heat pump itself. Wrong
settings on the controller may have similar effects. The triggering of corresponding sensors and the signalling of a mal-
function serve to protect the system and are generally not a sign for a defective heat pump.
Rinsing, de-aerating and filling
It is generally recommended to install a filling and rinsing fitting in the heating circuit, consisting of a shut-off device and
two tan filling and draining valves. Before filling the hot water circuit it is necessary to fill the drin ing water bag. The
heating water is filled in a tan as openly as possible, from where it is pumped in the system in flow direction via the
corresponding tan filling and draining valve by means of a powerful pump (e.g. CHI). The shut-off device between the
two tan filling and draining valves remains closed. The water escapes from the second tan filling and draining valve
after having flown through the system and must be re-conveyed into the open tan via a hose so that it is possible to
control the escaping air. The process must be performed, interrupted and repeated via a longer term. (When using
fresh water from the line it is particularly important to ma e interruptions.)
Close the tan filling and draining valve (output) and open the ball valve in order to pump the corresponding recipient
into the MAG and to set the system pressure as soon as no more air is escaping from the heat circuit. As soon as this is
done, the process can be considered as completed and the system will wor successfully after de-aerating the system
once again, in particular also the reservoir.
The rinsing process should be performed and logged according to VDI 2035.