Novelan Hydraulic Module 2E User manual

Operating Manual
UK
83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Accessories for
two Dual Air/ Water Heat Pumps
Hydraulic Module 2E
Hydraulic Module 2RE

283055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Please read rst
This operating manual provides important information
on handling the unit. It is an integral part of the product
and must be kept ready to hand in the immediate vicin-
ity 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 oper-
ating 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 in-
structions 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.
As this operating manual has been written for several
unit models, always comply with the parameters for the
respective model.
This operating manual is intended only for persons as-
signed to work on or with 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 electron-
ic data systems or translated into another language, ei-
ther wholly or in part, without the express written per-
mission of the manufacturer.
Symbols
The following symbols are used in the operating manu-
al. They have the following meaning:
Information for operators.
Information or instructions for qualied
technicians.
DANGER!
Indicates a direct impending danger result-
ing 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 moderate or slight inju-
ries.
ATTENTION
Indicates a potentially dangerous situation,
which could result in property damage.
NOTE
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 manufac-
turer.

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Contents
INFORMATION FOR USERS AND QUALIFIED
PERSONNEL
PLEASE READ FIRST......................................................................................... 2
SYMBOLS.............................................................................................................. 2
INTENDED USE .................................................................................................. 4
DISCLAIMER........................................................................................................ 4
SAFETY AND SECURITY................................................................................. 4
CUSTOMER SERVICES..................................................................................... 5
WARRANTY / GUARANTEE........................................................................... 5
WASTE DISPOSAL............................................................................................. 5
HEAT METERING ............................................................................................... 5
OPERATION......................................................................................................... 5
CARE OF THE UNIT........................................................................................... 6
MAINTENANCE OF THE UNIT ..................................................................... 6
MALFUNCTIONS............................................................................................... 6
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF SUPPLY............................................................................................ 6
Components of the unit......................................................................... 7
INSTALLATION................................................................................................... 8
Installation location ................................................................................. 8
Transport to installation location....................................................... 8
Installation ................................................................................................... 8
Unit lettering / labelling......................................................................... 9
Installation / Hydraulic connection to heating circuit.............10
Safety assembly....................................................................................... 11
Expansion vessels ...................................................................................11
ELECTRICAL CONNECTIONS.....................................................................12
400 V / 230 V operation........................................................................12
Electrical connection of the heat pumps
to the hydraulic module...............................................................13
FLUSHING, FILLING AND BLEEDING THE SYSTEM..........................15
INSULATING THE HYDRAULIC CONNECTIONS................................15
SET THE OVERFLOW VALVE.......................................................................16
COMMISSIONING...........................................................................................16
Safety temperature limiter..................................................................16
DISMANTLING .................................................................................................17
TECHNICAL DATA/SCOPE OF SUPPLY
Hydraulikmodul 2E.................................................................................18
Hydraulikmodul 2RE ..............................................................................19
FREE PRESSURE ...............................................................................................20
DIMENSIONED DRAWINGS
Hydraulikmodul 2E.................................................................................21
Hydraulikmodul 2RE ..............................................................................22
DRILLING PATTERN .......................................................................................23
INSTALLATION PLANS
Hydraulikmodul 2E.................................................................................24
Hydraulikmodul 2RE ..............................................................................25
PRESSURE LOSS CALCULATIONS
Calculation example..............................................................................26
Calculation of your system..................................................................27
FLUSHING AND VENTING PROCESSES
Flushing and venting process, hot water circuit........................28
Flushing and venting process, heating circuit............................29
Flushing and venting process, heat pump 1 ...............................30
Flushing and venting process, heat pump 2 ...............................31
HYDRAULIC INTEGRATION
Row tank .....................................................................................................32
Separate buer tank and
unit variant R (cooling)..................................................................33
Legend Hydraulic integration............................................................34
SCHEMATIC DIAGRAM OF THE ELECTRICAL CONNECTIONS ...36
TERMINAL DIAGRAMS
400V: LAD … / Hydraulikmodul 2… ...............................................37
230V: LAD … / Hydraulikmodul 2… ...............................................38
CIRCUIT DIAGRAMS ......................................................................................39
EC DECLARATION OF CONFORMITY.....................................................43

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Intended use
The hydraulic module is a functionally relevant accesso-
ry for dual air/water heat pumps intended for outdoor
installation. Taking into account the limits of use, the
unit can be used in conjunction with up to two dual air/
water heat pumps installed outdoors in new or existing
heating systems.
The unit must be used solely for its intended purpose.
This means, in conjunction with a dual air/water heat
pump:
•for heating.
•for cooling (reversible variant only).
•for water heating.
The unit may be operated only within its technical pa-
rameters.
“Technical Data / Scope of Supply” overview
from Page 18 and “Technical Data / Scope of
Supply” overview of the operating manual of
the heat pump to which the hydraulic module is
connected.
Disclaimer
The manufacturer is not liable for damage or losses re-
sulting from any use of the unit which is not its intend-
ed use.
The manufacturer's liability also expires:
•if work is carried out on the unit and its compo-
nents contrary to the instructions in this operat-
ing manual.
• if work is carried out improperly on the unit and
its components.
•if work is carried out on the unit which is not de-
scribed in this operating manual, and this work
has not been explicitly approved by the manufac-
turer 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 and Security
The unit is safe to operate for its intended use. The con-
struction and design of the unit conform to current
state-of-the-art standards, all relevant DIN/VDE regula-
tions 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 per-
son 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 com-
ply with the applicable accident prevention and safety
regulations. This applies in particular to the wearing of
personal protective equipment.
DANGER!
Risk of fatal electric shock!
All electrical connection work must be car-
ried out by qualied electricians only.
Before opening the unit, disconnect the sys-
tem from the power supply and prevent it
from being switched back on!
WARNING!
Only qualied personnel (trained heating,
cooling engineers and electricians) may car-
ry out 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 system, unless the unit is being opened.

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Customer Services
For technical information please contact a qualied
technician or the manufacturer’s local partner.
For a current list and additional partners of the
manufacturer, please visit www.novelan.com.
Warranty / Guarantee
For warranty and guarantee conditions, please refer to
the purchase documents.
NOTE
Please contact your dealer about all matters
concerning warranties and guarantees.
Waste disposal
When decommissioning the unit, always comply with
applicable laws, directives and standards for the re-
covery, recycling and disposal of materials and compo-
nents.
“Dismantling”, Page17
Heat metering
In addition to proof of the unit's eciency, the EEWaer-
meG also requires heat metering (hereafter referred to
as HQR). Heat metering is mandatory for air/water heat
pumps. AWME (heat metering) only has to be installed
for brine/water and water/water heat pumps for a ow
temperature ≥35 °C. The WME must record the total
thermal energy output (heating and hot water) in the
building. In heat pumps with heat metering, the analy-
sis is carried out by the regulator. The regulator displays
the thermal energy discharged in the heating system in
kWh.
Operation
Your decision to purchase a heat pump or a heat pump
system is a long-term contribution to protecting the en-
vironment 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 reg-
ulator.
NOTE
Make sure that the control settings are correct.
Operating manual of the heating and heat
pump controller.
To ensure that your heat pump or heat pump system op-
erates eciently and ecologically, the following are es-
pecially important:
€ENERGY SAVING TIP
Avoid unnecessarily high ow temperatures.
A lower ow temperature on the hot water side
increases the eciency of the system.
€ENERGY SAVING TIP
Preferably use purge ventilation. Compared to
continuously open windows, it is better to air
rooms by fully opening windows for a short pe-
riod, two to three times a day (so-called “rapid”
or “purge” ventilation); this reduces energy con-
sumption and your heating bill.

683055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Care of the unit
The outer surfaces of the unit can be cleaned with a
damp cloth and standard cleaning products.
Do not use cleaning or care products that contain abra-
sives, acids and/or chlorine. Such products would de-
stroy the surfaces and could also damage the technical
components of the unit.
Maintenance of the unit
The components of the heating circuit and the heat
source (valves, expansion vessels, circulation pumps, l-
ters, dirt traps) should be checked and cleaned as neces-
sary, however, at least annually, by qualied personnel
(heating or cooling system tters).
It is best to sign a maintenance agreement with a heat-
ing installation company. The company will arrange for
the required maintenance at regular intervals.
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 of the heating and heat
pump controller.
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 tem-
perature limiter on the electric heating element has
tripped.
“Commissioning”, “Safety temperature limiter”
section. Page16
Scope of supply
1 Hydraulic module with integrated
heating and heat pump controller
2 Safety assembly
(in the case of the reversible
variant these are the half-shells for
insulation. The safety assembly itself
is preassembled and installed.)
Example of layout of the accessory package:
1 Ball valve DN 32 (1x)
2 Screws and anchors for wall
bracket (3x each)
3 Ball valves DN 20 (2x)
4 Heat transfer paste and clip for
xing the return ow sensor
5 Cable ties
6 Strain relief screws (12x)
7 Flat seals: 1"(2x), 1¼"(1x)
not shown:
Stickers for unit and cable labelling
2 jumpers for operation in the
230 V power supply system
Check the delivery for outwardly visible signs of
damage…

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Check the scope of supply for completeness.
Any defects or incorrect deliver-
ies must be reported immediately.
NOTE
Note the unit model.
“Technical Data / Scope of Supply” overview
from Page18 or rating plate on the unit.
COMPONENTS OF THE UNIT
2 versions of the hydraulic module are available:
HYDRAULIKMODUL 2E
1 Heating circuit safety assembly (insulated)
2 Energy ecient heating
circuit circulation pump
3 Instantaneous water heater 6 kW
4 Flow outlet, heat pump 1 and 2
5 Flow inlet, heat pump 1
6 Flow inlet, heat pump 2
7 Safety temperature limiter
with Reset button
8 Switch cabinet
9 Control panel
REVERSIBLE VARIANT: HYDRAULIKMODUL 2RE
1 Heating circuit safety assembly (insulated)
2 Energy ecient heating
circuit circulation pump
3 Instantaneous ow heater 6 kW with
sensor tube for safety temperature limiter
4 Flow outlet, heat pump 1 and 2
5 Flow inlet, heat pump 1
6 Flow inlet, heat pump 2
7 Safety temperature limiter
with Reset button
8 Switch cabinet
9 Control panel

883055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Installation
The following applies to all work to be done:
NOTE
Always comply with the applicable local acci-
dent prevention regulations, statutory regula-
tions, ordinances, guidelines and directives.
INSTALLATION LOCATION
ATTENTION
Install the unit inside buildings only.
The installation room must be frost-free and dry. It must
full the relevant local regulations.
Dimensioned drawing (from Page 21) and in-
stallation plan (from Page 24) for the respec-
tive model.
TRANSPORT TO INSTALLATION LOCATION
To prevent damage during transport, always transport
the unit to nal installation location in its original pack-
aging.
ATTENTION
Never use components and hydraulic connec-
tions on the unit for transport purposes.
INSTALLATION
2 people are needed to lift the hydraulic module
out of the box…
Undo the quick-release screws in the top section of
the hydraulic module and remove the top section
from the front…
1 Quarter-turn screws
Remove the inner packaging material (transport
safeguard).
Align the mounting rail in line with the drilling pat-
tern at an appropriate height on the wall and mark
the drillholes on the wall…
Note the drilling pattern (Page 23), safety
and service spacings, see installation plan (from
Page24) for the respective model.
Use the plugs and screws supplied to secure the x-
ing rail onto the wall…
CAUTION!
Ensure the wall has the necessary load bear-
ing capacity.
The anchors supplied are only suitable for use in
the following types of walls:
•Concrete
•Solid lightweight concrete blocks
•Cavity block made of lightweight concrete
•Cellular concrete
•Prestressed concrete - hollow ceiling/oor slabs
•Natural stone with dense, close-grained micro-
structure
•Solid sand-lime bricks
•Perforated sand-lime bricks
•Solid bricks

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•Vertically perforated (honeycomb) bricks
•Hollow oors/ceilings made of clay bricks, con-
crete or similar
•Solid gypsum boards
•Gypsum boards and gypsum bre boards
• Particle boards
The board material must be dimensioned with sucient
thickness to ensure secure xing.
Appropriate xing material must be provided on site for
other types of wall constructions.
Mounting rail installed on the wall
ATTENTION
Leaving a gap between the unit and the wall
helps back ventilation and may not be sealed or
closed o.
Cable ducts must be laid at a distance of at least
2cm from the hydraulic module.
CAUTION!
Hands and ngers could be crushed during
the following tasks!
2 people are needed to hang the hydraulic module
in the mounting rail.
UNIT LETTERING / LABELLING
Before making the hydraulic and electrical connection
you must label the two heat pumps outdoors and their
connection cables.
Remove all stickers for unit and cable labelling from
the separate package included with the hydraulic
module…
Attach the larger sticker with number 1in a clearly
visible position on the outer façade of one of your
heat pumps…
1
Attach the smaller stickers with number 1to all con-
nection cables of this heat pump 1 – at the ends
which will later be connected to the hydraulic mod-
ule. This way it is clear at the hydraulic module in-
side thebuilding that these connection cables lead
to heat pump 1…
Attach the larger sticker with number 2 in a clearly
visible position on the outer façade of your second
heat pump…
2
Attach the smaller stickers with number 2 to all con-
nection cables of this heat pump 2 – at the ends
which will later be connected to the hydraulic mod-
ule. This way it is clear at the hydraulic module in-
side the building that these connection cables lead
to heat pump2…

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INSTALLATION / HYDRAULIC CONNECTION TO HEATING CIRCUIT
PRESSURE LOSS CALCULATION
NOTE
There are two circulation pumps integrated in
the hydraulic module, which are appropriately
dimensioned to ensure an adequately high vol-
ume ow (ow rate) on the heat sink side. The
free pressure available is limited, which makes
planning in advance indispensable. For details
of how high the free pressures of the circulation
pumps are at the corresponding heat pump vol-
ume ows, refer to the “free pressure” curves
in the operating manual of the connected heat
pumps.
Operating manuals of your heat pumps
A pressure loss calculation must be performed in ad-
vance for the hydraulic connection of the hydraulic
module, to dimension the components used (for exam-
ple, the pipe diameter). This is the only way to deter-
mine the head of the still available free pressure, which
is provided outside of the hydraulic module by the two
integrated circulation pumps.
The free pressure available for the external piping of the
heat sink side can be identied in the hydraulic module.
A calculation example of the hydraulic cal-
culation / pressure loss calculation is given
on Page 26 of this operating manual. On
Page 27 there is a schematic, in which you
can enter or calculate the data for your system.
The hydraulic components of a system must be chosen
and dimensioned so that the sum of all pressure losses
(heat pump, connection pipe, storage tank, changeo-
ver valves, heating circuit etc.) is less than the free pres-
sure available in accordance with the operating manual
of the connected heat pumps.
As it is possible to operate two heat pumps with dier-
ent heat outputs at the hydraulic module (for example,
an LAD 5 and an LAD 7) and therefore to operate them
with dierent volume ows, this means that the two
pipe runs of heat pump 1 and heat pump 2 can be load-
ed asymmetrically:
Depending on the connected heat pump types, the free
pressure of pipe run 1, as a result of a higher pressure
loss, can be lower than the free pressure of pipe run 2. In
this case, for the further dimensioning it is important for
the design to be based on the pipe run with the more
unfavourable hydraulic conditions.
Calculate the hydraulics of your system in accord-
ance with the schematic on Page27 …
Flush the heating circuit thoroughly before con-
necting the unit to the heating circuit…
NOTE
Contamination and deposits in the heating cir-
cuit can cause malfunctions.
Install lling and draining devices, shut-o valves
and non-return valves at the required locations in
the heating circuit…
Check whether the units have already been la-
belled. If not, label the units now…
Page9, Unit lettering / labelling.
Make hydraulic connections to the hydraulic mod-
ule according to the unit labelling. The connections
for the heating circuit are located on the underside
of the hydraulic module.
NOTE
The circulation pumps or rather the pipe runs on
or in the hydraulic module have already been la-
belled in the factory with number 1for the con-
nections of heat pump 1 and number 2 for the
connections of heat pump 2.
ATTENTION
When installing the connections, always secure
the connections on the unit against twisting, to
prevent damage to the copper pipes inside the
unit.

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1 Flow inlet, heat pump 1
2 Flow inlet, heat pump 2
3 Flow outlet, heat pump 1 and 2
“Hydraulic integration” documents.
SAFETY ASSEMBLY
HYDRAULIKMODUL 2E
The safety assembly for the heating circuit is in the ex-
tra box. The connection for the safety assembly is locat-
ed at the top of the hydraulic module.
Install the safety assembly at the connection pro-
vided at the top of the hydraulic unit…
Lay the safety discharge of the safety valve via a
funnel-shaped odour trap and into the drain ac-
cording to the relevant standards and guidelines.
ATTENTION
The safety discharge must be connected!
HYDRAULIKMODUL 2RE
The safety assembly for the heating circuit is pre-in-
stalled.
ATTENTION
Perform leak test on the piping.
Take the insulation half-shells from the enclosed
separate package and insulate the adapter from the
hydraulic module to the safety assembly…
Lay the safety discharge of the safety valve via a
funnel-shaped odour trap and into the drain ac-
cording to the relevant standards and guidelines.
ATTENTION
The safety discharge must be connected!
EXPANSION VESSELS
ATTENTION
The expansion vessel for the heating circuit is
not included in the scope of supply!
Always check whether the size of the expansion
vessel is large enough for the system. If neces-
sary, an additional expansion vessel must be in-
stalled on site according to the relevant stand-
ards and guidelines.
NOTE
The admission pressure of the expansion ves-
sel must be adjusted to the system (approx. 0.5
bar less than the system lling pressure) accord-
ing to the calculation to the relevant standards
(EN12828).

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Electrical connections
The following applies to all work to be done:
DANGER!
Risk of fatal electric shock!
All electrical connection work must be car-
ried out by qualied electricians only.
Before opening the unit, disconnect the sys-
tem from the power supply and prevent it
from being switched back on!
WARNING!
Note and follow the relevant EN, VDE and/or
local safety regulations during installation
and when carrying out electrical work.
Comply with technical connection require-
ments of the responsible power supply com-
pany (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 cabi-
nets!
ATTENTION
The power supply for the heat pump and the
electric heating element must be equipped with
an all-pole automatic circuit-breaker with at
least 3mm contact spacing to IEC 60947-2.
Note the level of the tripping current.
“Technical data / scope of supply” overview,
“Electrics” section (from Page18).
The electrical connection of the heat pumps outdoors is
made only via the hydraulic module inside the building.
“Schematic diagram of “Electrical connections”,
Page36
400 V / 230 V OPERATION
The hydraulic module is compatible with heat pumps for
the 3~400V power supply system (3~N/PE/400V/50Hz)
and with heat pumps for the 1~230V power supply sys-
tem (1~N/PE/230V/50Hz).
In the condition as-delivered from the factory the hy-
draulic module is set up for operation with heat pumps
for the 3~400V power supply system. You can see this
condition as-delivered from the factory at the terminal
block in the switch cabinet of the hydraulic module:
1L1 1L2 1L3 1N1 1N2 1N3
Condition as-delivered from the factory
1 Jumper between 1N1 and 1N2
2 Jumper between 1N2 and 1N3
The following unit combinations are possible in condi-
tion as-delivered from the factory (3~400V power sup-
ply system):
Heat pump type Hydraulic module
LAD 5 Hydraulikmodul 2E
LAD 7 Hydraulikmodul 2E
LAD 9 Hydraulikmodul 2E
LAD 5/RX Hydraulikmodul 2RE
LAD 7/RX Hydraulikmodul 2RE

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ELECTRICAL CONNECTION OF THE HEAT PUMPS
TO THE HYDRAULIC MODULE
Example Hydraulikmodul 2E:
1 230 V inputs
2 Terminal strip, external sensors
3 LINBus cable connection
-X1for heat pump 1
-X2 for heat pump 2
4 Terminal strip for control supply
cables of the heat pumps
5 Terminal strip, power supply cables
– Heat pumps
X8-1for heat pump 1
X8-2 for heat pump 2
– Heating element
6 Cable routing
Feed the connection cable through the ducts of the
wall penetration from the outside into the inside of
the building. Use the lubricant…
807318
55
40
80
9
D
E
11
D
O
E
O
14
15
2x F
2x H
2x R
P
C
12
8b
90°
90°
90°
O
10
O
3Ph/400V
a
b
16
13
2x U
17
i
!
i
!
i
V
V
ATTENTION
When laying the cable, note that unshielded
power supply cables (power supply of outdoor
units) and shielded cables (LINBus) must be laid
separately from each other.
CHANGEOVER 400 V CONNECTION TO 230 V
If the hydraulic module is to be operated with heat
pumps for the 1~230V power supply system, in addition
to the jumpers in the condition as-delivered from the
factory, you must set two additional jumpers between
terminals 1L1 and 1L2 and between 1L2 and 1L3. The
jumpers are enclosed in the separate package.
1L1 1L2 1L3 1N1 1N2 1N3
New jumpers to be set for operation
in the 1~230V power supply system
3 Jumper between 1L1 and 1L2
4 Jumper between 1L2 and 1L3
ATTENTION
This termination is only allowed if the hydraulic
module is operated in the 1~230V power supply
system and only with appropriate heat pumps
designed for 1~230V power supply systems.
The following unit combinations are possible in the
1~230V power supply system:
Heat pump type Hydraulic module
LAD 5/SX Hydraulikmodul 2E
LAD 7/SX Hydraulikmodul 2E
ATTENTION
Before each further action, check which heat
pump types are operated with the hydraulic
module and if applicable set or remove jumpers.
Heat pumps for the 3~400V power supply sys-
tem may not be operated in the 1~230V power
supply system.
ATTENTION
Heat pumps for the 1~230V power supply are
not available in all countries. Contact power
company before the use of heat pumps for the
1~230V power supply.

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Connect LINBus cable of heat pump 1 to terminal
strip -X1…
Connect LINBus cable of heat pump 2 to terminal
strip -X2…
NOTE
The Commissioning (startup) Wizard of the heat-
ing and heat pump controller will give you in-
structions on addressing the heat pumps when
you start up the system for the rst time.
Then follow the instructions displayed in the
screen of the heating and heat pump controller.
Connect the control supply cables of heat pump1
and heat pump 2 to the terminal strip for control
supply cables.
Heat pump-specic assignment (heat pump 1 /
heat pump 2) is not necessary here; the two cables
can be connected to the relevant terminal strip in
any order…
Use cable ties and heat transfer compound to x
the return sensor to the joint return (heat carrying
pipe) of heat pumps 1 and 2…
Hydraulic integration documents
Unshielded power supply cables (power supply
of outdoor units) and shielded cables (LINBus)
must be laid with the following minimum dis-
tances between them:
without separator ≥50mm
separator made of aluminium ≥20mm
separator made of steel ≥2mm
From the cable labelling, nd out which cables
come from heat pump 1 and which cables come
from heat pump 2.
If the units and cables have not yet been labelled,
label the units and cables now…
Page9, Unit lettering / labelling.
Connect the supply cable of heat pump 1 to ter-
minal strip  1 (X8-1) and the supply cable of heat
pump 2 to terminal strip 2 (X8-2)…
NOTE
In the hydraulic module, the terminal strips for
these supply cables have already been labelled
in the factory with the number 1for the supply
cable of heat pump 1 and number 2 for the con-
nections of heat pump 2.
1 2
1 Terminal strip X8-1for heat
pump 1 supply cable
2 Terminal strip X8-2 for heat
pump 2 supply cable

15
83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Seal the cable penetrations for cables, which are
routed from the heat pumps into the buildings, in
the outdoor area.
NOTE
The control panel of the heating and heat pump
controller can be connected to a computer or
network, via the left-hand LAN socket on its
underside, using a suitable network cable, ena-
bling the heating and heat pump controller to
be controlled remotely from there.
If such a connection is required, install a shielded
network cable (category 6, with RJ45 connector)
during the electrical connection work and con-
nect it parallel to the existing control cable of
the heating and heat pump regulator.
The network cable can be added subsequently
at any time.
Flushing, lling and bleeding the
system
ATTENTION
The system must be absolutely free from air be-
fore commissioning.
Contamination and deposits in the system can
cause malfunctions.
ATTENTION
Do not exceed a pressure of 2.5 bar when ush-
ing the unit. The drain line of the heating circuit
safety valve must be closed before ushing and
lling.
Example with storage tanks connected in series:
Connect the 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 inlet from the heat pump)…
Close the shut-o valves in the hydraulic module to
the heat pump. Open shut-o valves to the heating
circuit…
Example diagram: “Hot water circuit ushing
and venting process”, Page28
“Changeover valve” operating manual
Dismantle the motor of the 3-way valve for water
heating (accessory). To do so, remove the U-bolt
on the motor base and carefully pull o the motor
from above….
Turn the stem through 180° and ush the hot water
charging circuit for approx. 1 minute…
Turn the spindle 180° back to its starting position
(rounded side of the stem points to B)…
Flush the heating circuit! If necessary, the heating
and hot water circuit can be ushed at the same
time! Todo so, turn stem through 30°…
Example diagram: “Heating circuit ushing and
venting process”, Page29
After completing the ushing and lling process,
place the stem in the initial position and install the
motor of the 3-way valve…
The unit vents automatically if the venters (black
cap) of the safety assembly are open. If the heat-
ing circuit is lled or emptied, the bleeding valve
opens…
Open the shut-o valves in the hydraulic module to
the heat pump. Close shut-o valves to the heating
circuit. Close the shut-o valves on site to the heat
pump:
Example diagram: “Flushing and venting pro-
cess, heat pump 1”, Page30
Example diagram: “Flushing and venting pro-
cess, heat pump 2”, Page31
Swap the hoses at the lling and draining taps and
ush the condenser of the heat pump via the re-
turn…
Also open the venting valve at the condenser of the
heat pump. Vent the condenser and then close the
venting valve again when fully vented.
Insulating the hydraulic
connections
You must insulate the xed piping of the heating cir-
cuit, the connection pipes between the hydraulic mod-
ule and the heat pump and the connections of the hot
water tank.
In (R) variant, vapour diusion tight.
NOTE
Insulate in accordance with applicable local
standards and guidelines/directives.

16 83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Set the overow valve
REMARQUE
The activities in this section are only necessary
for in-line tank integration.
Complete the worksteps quickly, otherwise the
maximum return temperature can be exceeded
and the heat pump switches to high-pressure
fault.
Turn the adjusting knob at the overow valve to
the right to increase the temperature dierence
(the temperature drop), turn it to the left to re-
duce it.
System is running in heating mode (ideally in cold
condition).
In case of low heating curve: Set the system to
“Forced heating”…
Operating manual of the heating and heat
pump controller.
Shut o valves to the heating circuit…
Ensure that the total ow is routed via the overow
valve…
Read out the ow and return temperature at the
heating and heat pump controller…
Operating manual of the heating and heat
pump controller.
Turn the adjusting knob (1) of the overow valve (2)
until the temperature drop between the ow and
return temperature is set as follows:
External temperature Recommended settings
-10 °C 4 K
0 °C 5 K
10 °C 8 K
20 °C 9 K
30 °C 10 K
Open valves to heating circuit…
Reset the heating and heat pump controller.
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 installed in 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.
Hydraulikmodul 2E
1 Reset button of the safety temperature
limiter at the electric heating element

17
83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Dismantling
DANGER!
Risk of fatal electric shock!
All electrical work must be carried out by
qualied electricians only.
Before opening the unit, disconnect the sys-
tem 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.
ATTENTION
Recycle or provide for proper disposal of unit
components in accordance with the applicable
regulations, standards and directives.
REMOVING THE BUFFER BATTERY
ATTENTION
Before scrapping the heating and heat pump
controller, remove the buer battery on the con-
trol board. The battery can be pushed out using
a screwdriver. Ensure environmentally compati-
ble disposal of the battery and electronic com-
ponents.
Hydraulikmodul 2RE
1 Sensor tube on the electric heating element
2 Reset button of the safety
temperature limiter

18 83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Unit designation
Accessories for LAD 5 - LAD 7 - LAD 9 - LAD 5/SX - LAD 7/SX • applicable ı — not applicable
Heat pump type LAD 5/RX - LAD 7/RX • applicable ı — not applicable
Functionally relevant • applicable ı — not applicable
Installation location Indoors ı Outdoors • applicable ı — not applicable
Maximum room temperature °C
Maximum relative humidity %
Conformity CE
Heating circuit Heating circuit efciency pump integrated: • yes — no
Free pressure, heating circuit pump: ∆p **) ı ∆pmax ı Volume ow bar ı bar ı l/h
Volume ow: minimum ow rate ı maximum ow rate l/h
max. allowable operating pressure bar
Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar
Buffer tank integrated: • yes — no
Heat metering integrated: • yes — no
General unit data Total weight kg
Electric Voltage code ı all-pole fusing per heat pump LAD 5*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 7*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 9*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 5/SX *) ***) … ı A
Voltage code ı all-pole fusing per heat pump LAD 7/SX *) ***) … ı A
Voltage code ı circuit breaker control voltage *) … ı A
Voltage code ı fusing of electric heating element for 1~230V power supply system*) … ı A
Voltage code ı fusing of electric heating element for 3~230V power supply system*) … ı A
Voltage code ı fusing of electric heating element for 3~400V power supply system*) … ı A
Protection type IP
Output of electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW
Circulating pump, heating circuit: maximum power consumption ı current consumption kW ı A
Safety equipment Safety assembly heating circuit ı Safety assembly heat source incl. in scope of supply: • yes — no
Heating and heat pump regulator incl. in scope of supply: • yes — no
Overow valve integrated: • yes — no
*) comply with local regulations **) factory setting ***) Heat pump is not available in all countries
Hydraulikmodul
2E
•
—
•
• ı —
35
60
•
•
0,45 ı 0,45 ı 2 x 1600
2 x 900 ı 2 x 2000
3
—
—
•
39
3~/N/PE/400V/50Hz ı C16
3~/N/PE/400V/50Hz ı C16
3~/N/PE/400V/50Hz ı C16
1~/N/PE/230V/50Hz ı 2 x C16
1~/N/PE/230V/50Hz ı 2 x C20
1~/N/PE/230V/50Hz ı B16
1~/N/PE/230V/50Hz ı B40
3~/PE/230V/50Hz ı B25A
3~/N/PE/400V/50Hz ı B16A
20
9 ı 6 ı 3
2 x 0,06 ı 2 x 0,26
• ı —
•
—
813315
Technical data/Scope of supply

19
83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Unit designation
Accessories for LAD 5 - LAD 7 - LAD 9 - LAD 5/SX - LAD 7/SX • applicable ı — not applicable
Heat pump type LAD 5/RX - LAD 7/RX • applicable ı — not applicable
Functionally relevant • applicable ı — not applicable
Installation location Indoors ı Outdoors • applicable ı — not applicable
Maximum room temperature °C
Maximum relative humidity %
Conformity CE
Heating circuit Heating circuit efciency pump integrated: • yes — no
Free pressure, heating circuit pump: ∆p **) ı ∆pmax ı Volume ow bar ı bar ı l/h
Volume ow: minimum ow rate ı maximum ow rate l/h
max. allowable operating pressure bar
Integrated expansion vessel ı Volume ı Initial pressure • yes — no ı l ı bar
Buffer tank integrated: • yes — no
Heat metering integrated: • yes — no
General unit data Total weight kg
Electric Voltage code ı all-pole fusing per heat pump LAD 5*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 7*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 9*) … ı A
Voltage code ı all-pole fusing per heat pump LAD 5/SX *) ***) … ı A
Voltage code ı all-pole fusing per heat pump LAD 7/SX *) ***) … ı A
Voltage code ı circuit breaker control voltage *) … ı A
Voltage code ı fusing of electric heating element for 1~230V power supply system*) … ı A
Voltage code ı fusing of electric heating element for 3~230V power supply system*) … ı A
Voltage code ı fusing of electric heating element for 3~400V power supply system*) … ı A
Protection type IP
Output of electric heating element 3 ı 2 ı 1 phase kW ı kW ı kW
Circulating pump, heating circuit: maximum power consumption ı current consumption kW ı A
Safety equipment Safety assembly heating circuit ı Safety assembly heat source incl. in scope of supply: • yes — no
Heating and heat pump regulator incl. in scope of supply: • yes — no
Overow valve integrated: • yes — no
*) comply with local regulations **) factory setting ***) Heat pump is not available in all countries
Hydraulikmodul
2RE
—
•
•
• ı —
35
60
•
•
0,45 ı 0,45 ı 2 x 1600
2 x 900 ı 2 x 2000
3
—
—
•
40
3~/N/PE/400V/50Hz ı C16
3~/N/PE/400V/50Hz ı C16
3~/N/PE/400V/50Hz ı C16
1~/N/PE/230V/50Hz ı 2 x C16
1~/N/PE/230V/50Hz ı 2 x C20
1~/N/PE/230V/50Hz ı B16
1~/N/PE/230V/50Hz ı B40
3~/PE/230V/50Hz ı B25A
3~/N/PE/400V/50Hz ı B16A
20
9 ı 6 ı 3
2 x 0,06 ı 2 x 0,26
• ı —
•
—
813316

20 83055503bUK – Translation into English of the original German operating manual – Subject to change without notice. www.novelan.com
Bezeichnung:
Datei: 812036 Freie Pressung HMD 2
Seite: 1/1
Zeichnungsnummer:
Legende:
“v”
Volumenstrom Heizwasser in m
3
/h je Pumpenzweig, zwei Zweige verfügbar
∆pmax
maximale freie Pressung
Freie Pressung HMD 2
812036
Änd./ÄM/Ersteller/Datum
-/PEP 005-2014 / Mödder/ 21.02.2014
812036
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
Δpmax [bar]
Δpmax
Δ
p
“” [m3/h]
Key: UK812036
All dimensions in mm.
“” Heating water volume ow in m³/h per pump branch, two branches available
∆pmax maximum free pressure
Hydraulikmodul 2… Free pressure