Bosch Compress Hybrid 7000i AW Assembly instructions

6721833053 (2020/09) GB
Installer Guide
Indoor unit for air to water heat pumps
Compress Hybrid 7000i AW
HC7000iAW 9l

Table of contents
Compress Hybrid 7000i AW – 6721833053 (2020/09)
2
Table of contents
1 Explanation of symbols and safety instructions . . . . . . . . . . . 3
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 3
2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Possible combinations of indoor and outdoor
units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 Possible combinations of indoor unit and external
booster heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Dimensions and Minimum Clearances . . . . . . . . . . . . . . 5
3 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Preparing for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Water quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Installing the particulate filter . . . . . . . . . . . . . . . . . . . . . 6
4.3 Minimum volume and installation of the heating
system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.4 Installing the piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5 Installing the pressure-relief valve. . . . . . . . . . . . . . . . . . 7
4.6 Installing the heating pump (optional) . . . . . . . . . . . . . . 8
4.7 Maximum sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.8 Insulating the hydraulic pipework . . . . . . . . . . . . . . . . . . 8
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3 Indoor unit installation. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3.1 Removing the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.3.2 Installing the indoor unit . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3.3 Fitting the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.4 Connecting the indoor unit to the outdoor unit . . . . . . 12
5.5 Connecting the indoor unit to the external booster
heater and heating system. . . . . . . . . . . . . . . . . . . . . . . 13
5.6 Fitting the outside temperature sensor . . . . . . . . . . . . 14
5.7 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.7.1 Mounting the flow temperature sensor. . . . . . . . . . . . . 14
5.7.2 Installing the heating circuit module. . . . . . . . . . . . . . . 14
5.7.3 Room temperature-dependent controller . . . . . . . . . . 14
5.7.4 Installing the accessories for the cooling mode . . . . . . 14
5.7.5 Installation with swimming pool . . . . . . . . . . . . . . . . . . 15
6 Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Routing cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 Connecting the power supply . . . . . . . . . . . . . . . . . . . . 17
6.4 CAN-BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.5 Connecting the outside temperature sensor . . . . . . . . 17
6.6 External booster heater (uncommon in UK market) . . . . 18
6.6.1 Connect the actuator of the external booster
heater (e.g. floor standing boiler). . . . . . . . . . . . . . . . . 18
6.6.2 Connect the alarm signal for the external booster
heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.7 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7.1 EMS BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.7.2 Connect the flow temperature sensor . . . . . . . . . . . . . 21
6.7.3 Connecting the heating circuit module. . . . . . . . . . . . . 22
6.7.4 Room temperature-dependent controller . . . . . . . . . . 22
6.7.5 Connecting the swimming pool mixer . . . . . . . . . . . . . 22
6.7.6 Connecting MB LAN 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.7.7 External inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 Filling and venting the heating system . . . . . . . . . . . . . 23
7.2 Operation without outdoor unit (Stand-alone
mode and chimney sweep mode). . . . . . . . . . . . . . . . . 23
7.3 Function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.1 Operating temperatures . . . . . . . . . . . . . . . . . . . . . . . . 24
8 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8.1 Overview of control elements and symbols . . . . . . . . . 24
8.2 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.3 General commissioning of the user interface . . . . . . . 25
8.4 System commissioning with the configuration
wizard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.5 Service menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8.5.1 Menu: Set additional heater . . . . . . . . . . . . . . . . . . . . . 26
8.5.2 Menu: Auxiliary heater with mixer. . . . . . . . . . . . . . . . . 27
8.6 Cooling mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.7 Adjusting the room temperature-dependent
controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.1 Draining the heating system . . . . . . . . . . . . . . . . . . . . . 27
9.2 Replacing components . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.2.1 Replacing the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.2.2 Replacing the temperature sensor . . . . . . . . . . . . . . . . 28
10 Environmental protection and disposal . . . . . . . . . . . . . . . . . 29
11 Data Protection Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.1 Hydraulic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.2 Installer module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
12.3 Tech data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
12.4 System commissioning report . . . . . . . . . . . . . . . . . . . 35

Explanation of symbols and safety instructions
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Compress Hybrid 7000i AW – 6721833053 (2020/09)
1 Explanation of symbols and safety instructions
1.1 Explanation of symbols
Warnings
In warnings, signal words at the beginning of a warning are used to
indicate the type and seriousness of the ensuing risk if measures for
minimizing danger are not taken.
The following signal words are defined and can be used in this document:
DANGER
DANGER indicates that severe or life-threatening personal injury will
occur.
WARNING
WARNING indicates that severe to life-threatening personal injury may
occur.
CAUTION
CAUTION indicates that minor to medium personal injury may occur.
NOTICE
NOTICE indicates that material damage may occur.
Important information
The info symbol indicates important informationwhere there is no risk to
people or property.
Additional symbols
Table 1
1.2 General safety instructions
HNotices for the target group
These installation instructions are intended for gas,
plumbing, heating and electrical contractors. All
instructions must be observed. Failure to comply with
instructions may result in material damage and
personal injury, including danger to life.
▶ Read the installation, service and commissioning
instructions (heat source, heating controller,
pumps, etc.) before installation.
▶ Observe the safety instructions and warnings.
▶ Follow national and regional regulations, technical
regulations and guidelines.
▶ Record all work carried out.
HIntended use
This product is intended for use in sealed heating
systems in residential buildings.
Any other use is considered unsuitable. Liability will
not be assumed for any resulting damage.
HInstallation, maintenance and repairs
Installation, maintenance and repairs must only be
carried out by an approved contractor.
A suitable qualification is required, especially when
working on electrical parts or on the refrigerant
circuit.
▶ Do not repair, manipulate or deactivate safety-
relevant components.
▶ Only install original spare parts.
HCommissioning
Commissioning must only be carried out by the
service engineer of the manufacturer or the installer.
HEstablishing the connection to the power
supply
A device that safely isolates the appliance from the
power supply must be used.
▶ Install a safety switch that disconnects all poles
from the power supply.
HPower cable
To avoiddanger, havedamaged powercablesreplaced
by the manufacturer, a Service engineer authorised by
the manufacturer or by other qualified personnel.
HHandover to the user
When handing over, instruct the user how to operate
the heating system and inform the user about its
operating conditions.
▶ Explainhowtooperatetheheatingsystemanddraw
the user's attention to any safety relevant action.
▶ In particular, point out the following:
– Alterations and repairs must only be carried out
by an approved contractor.
– Safe and environmentally compatible operation
requires inspection at least once a year and
responsive cleaning and maintenance.
▶ Point out the possible consequences (personal
injury, including danger to life or material damage)
of non-existent or improper inspection, cleaning
and maintenance.
▶ Point out the dangers of carbon monoxide (CO) and
recommend the use of CO detectors.
▶ Leave the installation instructions and the
operating instructions with the user for
safekeeping.
Symbol Meaning
▶ a step in an action sequence
a reference to a related part in the document
• a list entry
–a list entry (second level)

Product description
Compress Hybrid 7000i AW – 6721833053 (2020/09)
4
2 Product description
2.1 Declaration of conformity
The design and operating characteristics of this product comply with the
European and national requirements.
The CE marking declares that the product complies with all the
applicable EU legislation, which is stipulated by attaching this
marking.
The complete text of the Declaration of Conformity is available on the
Internet: worcester-bosch.co.uk.
2.2 Scope of delivery
▶ Upon delivery, check whether the packaging is intact.
▶ Check the scope of delivery for completeness:
–Indoorunit
–Documentation
–Drilltemplate
– Cable glands
– Mounting rail
– Bag with terminals
– Bag with screws
–Outdoorambienttemperature sensor
– Pressure-relief valve and corresponding connections
– Compression fittings
2.3 product overview
Fig. 1 Components and pipe connections of the indoor unit
[1] Automatic air vent valve
[2] Installer module
[3] Relay box
[4] Mixing valve
[5] DHW circulation pump (heat transfer medium)
Fig. 2 Low loss header in the indoor unit (shown without electronic
components)
[1] Low-loss header
[2] Automatic air vent valve
[3] Mixing valve
Fig. 3 Underside of indoor unit
[1] Return to outdoor unit
[2] Flow from the outdoor unit
[3] Return to the auxiliary heater
[4] Flow to heating system
[5] Return from the heating system
[6] Flow to the auxiliary heater
[7] Front of appliance
0010029907-003
1
2
4
5
3
0010029908-004
1
2
3
0010029912-003
1
2
3
4
5 6 7

Product description
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Compress Hybrid 7000i AW – 6721833053 (2020/09)
2.4 Possible combinations of indoor and outdoor units
The indoor unit is intended for installation inside the building and for
connection to heat pump outdoor units installed in the open air.
The indoor unit can be used with the following outdoor units:
• CS7001iAW 5 OR
• CS7001iAW 7 OR
• CS7001iAW 9 OR
• CS7400iAW 5
• CS7400iAW 7
2.5 Possible combinations of indoor unit and external
booster heater
The indoor unit can be operated in combination with a gas condensing
appliance, providing the gas condensing appliance satisfies the
following minimum requirements:
• Minimum modulation: factor 4
• Maximum output: 32 kW “(heating) output"
• Integrated heating pump
If the indoor unit is to be operated without a gas condensing appliance,
additional safety equipment must be installed in the heating system in
compliance with the applicable standards and guidelines.
DHW is only provided via the external booster heater (combi boiler)
(Fig. 21)
2.6 Dimensions and Minimum Clearances
Mount the indoor unit high enough so that the control unit is easy to use.
In addition, take pipes and connections under the indoor unit into
account.
Fig. 4 Minimum distance (mm)
Fig. 5 Clearances between connections (mm)
0010028013-003
≥50 ≥50
≥550
≥800
655
757
0010029918-003
350
90 129
100627066
243
62 114
9844
67

Regulations
Compress Hybrid 7000i AW – 6721833053 (2020/09)
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3Regulations
Follow the directives and regulations given below:
• Local provisions and regulations of the electricity supplier and
corresponding special rules
• National building regulations
•F-Gas regulation
•EN 50160 (voltage properties in power grids for public distribution)
•EN 12828 (heating systems in buildings - Design and installation of
water-based heating systems)
•EN 1717 (Protection of potable water against pollution in potable
water installations)
The document 6720807972 contains further information about the
applicable regulations. You can use the document search on our website
to display this. You will find the address of the website on the back of
these instructions.
4 Preparing for installation
NOTICE
Residue in the pipework can damage the system.
Residue and particles in the heating system impair the flow rate and
lead to faults.
▶ Before connecting the indoor unit, flush the pipe system to remove
any foreign bodies.
4.1 Water quality
Water quality in the heating system
Heat pumps work at lower temperatures than other heating systems,
which is why thermal degassing is less effective and the remaining
oxygen content is always higher than with electric, oil and gas heaters.
This means that the heating system will be more sensitive to rust with
aggressive water.
If heating systems have to be regularly refilled or if hot water samples
from these systems are inconclusive, corresponding measures such as
retrofitting magnetite separators and air vents are needed before
installing the heat pump.
Measures during frequent refilling: replacing the expansion vessel,
leak test and verifying whether the size of the expansion vessel
corresponds to the system volume.
If the limits specified below are not reached, an intermediate heat
exchanger may be required to protect the heat pump.
Only use non-poisonous additives to increase the pH value and keep
the water clean.
Table 2 Water quality in the heating system
4.2 Installing the particulate filter
NOTICE
Pollution in the heating system may damage the indoor unit!
Dirt and pollution in the heating system may damage the indoor unit.
▶ Install a particulate filter in the heating return of the indoor unit.
The particulate filter must have the following characteristics:
• Mesh size: max. 0.6 mm
• Flow factor: min. 7 m³/h
•Magnetiteseparator
4.3 Minimum volume and installation of the
heating system
NOTICE
Malfunction due to closed shut-off valves!
Under no circumstances whatsoever should the mass flow rate through
the indoor unit of the heat pump and the outdoor unit be blocked or shut
off when in operation.
▶ Always open all shut-off valves during operation.
▶ Never close all thermostatic valves (e.g. of the radiator).
As heating systems are configured in different ways, a minimum water
volume is generally not specified. Instead, the system volume is
considered to be sufficient if certain conditions are met.
A sufficient amount of energy must be stored in the system to
• ensure the heat pump function.
• prevent an excessive number of start-stop cycles.
• prevent incomplete defrosting of the outdoor unit.
• prevent unnecessary alarms.
Energy is stored in the water volume of the heating system,
the components of the system (e.g. radiators) and in the concrete floor
(e.g. with underfloor heating system).
Underfloor heating system without buffer cylinder
If the water volume in the heating system is insufficient,
this can lead to an excessive number of start-stop cycles.
▶ Install a room temperature-dependent control instead of a
weather-compensated control.
Small floor areas can lead to the auxiliary heater being activated in the
final phase of the defrosting process.
▶ The floor area must be at least 6 m2.
A larger floor area enables maximum energy savings and avoids booster
heater operation.
▶ The floor area must be at least 30 m2.
System with radiators without mixer and buffer cylinder
If the system only contains a few radiators, the auxiliary heater may be
activated in the final phase of the defrosting process.
▶ Install at least one open radiator with minimum output of 500W.
▶ Open radiator valves completely.
A larger system fill volume maximises energy savings and avoids booster
heater operation.
▶ Install at least four radiators with outputs of 500W each.
Water quality Limit values for the heating system
Hardness <3 °dH
Oxygen content <1 mg/l
Carbon dioxide, CO2<1 mg/l
Chloride ions, Cl-<250 mg/l
Sulphate, SO4<100 mg/l
Conductivity <350 μS/cm
pH 7.5 – 9

Preparing for installation
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Compress Hybrid 7000i AW – 6721833053 (2020/09)
Heating system with underfloor heating system and radiators in
separate heating circuits without buffer cylinders
If the water volume in the heating system is insufficient, this can lead to
an excessive number of start-stop cycles.
▶ Install a room temperature-dependent control instead of a weather-
compensated control.
Small floor areas or only a few radiators in the system can lead to the
auxiliary heater being activated in the final phase of the defrosting
process.
▶ ≥ install at least one open radiator with minimum output of 500W.
A minimum floor area is not required for the underfloor heating system.
To avoid booster heater operation and achieve optimum energy savings,
the radiator valves and several valves of the underfloor heating system
must be partially open.
Only heating circuits with mixer
▶ Install the buffer cylinder (separate installation instructions).
▶ Connect T0 flow temperature sensor as shown in connection
diagram (Fig. 45).
▶ The water volume must be at least 50 litres.
Only fan convectors
If the water volume is too low, the booster heater maybe activated in the
final phase of the defrosting process.
▶ Install a buffer cylinder with a volume of at least 10 litres.
4.4 Installing the piping
NOTICE
Residue in the pipework can damage the system.
Residue and particles in the heating system impair the flow rate and lead
to faults.
▶ Before connecting the indoor unit, flush the pipe system to remove
any foreign bodies.
NOTICE
Danger of faults due to contaminants in pipework!
Solids, metal/plastic filings, flax and thread tape residue and similar
material can get stuck in pumps, valves and heat exchangers.
▶ Keep foreign bodies from entering the pipework.
▶ Do not leave pipe parts and connections directly on the ground.
▶ When deburring, make sure that no residue remains in the pipe.
▶ Mount connection sets (accessories) on the pipe as shown in figure 6 .
▶ Push the connector onto the pipe up to the catch.
▶ Tighten union nut using a suitable tool.
Fig. 6 Assembly of the compression fitting
[1] Pipe
[2] Pipe socket cap
[3] Locking ring
[4] O-ring (black for hydraulics)
[5] Connection part
▶ Install piping for the heating system in the building up to the
installation location of the indoor unit.
▶ Install insulated piping between the outdoor unit and indoor unit,
keeping the length of the piping as short as possible.
4.5 Installing the pressure-relief valve
▶ Install the pressure-relief valve in the flow outside the indoor unit.
▶ Ensure the pressure relief valve drain pip is not exposed to potential
freezing. Insulation may be required.
Fig. 7 Assembly of the pressure-relief valve
[1] Water pressure relief valve
[2] O-ring
[3] Pressure-relief valve connector pipe
[4] Retaining spring
[5] Gasket
0010036538-001
3
2
1
4
5
0010036552-001
1
2
3
4
5
1.
2.

Preparing for installation
Compress Hybrid 7000i AW – 6721833053 (2020/09)
8
4.6 Installing the heating pump (optional)
(Chapter 12.1, page 30)
Whether or not it is necessary to install a heating pump depends on the
configuration of the heating system and the amount of system
resistance.
▶ Select the heating pump based on the required pump flow rate and
pressure loss.
▶ Install the bypass [1] between the flow [2] and return [3] (Fig. 8)
to hydraulically uncouple the heating pump from the heating circuit.
Observe the prescribed dimensions and clearances during assembly
(Tab. 3).
Table 3 Pipe diameter and bypass lengths
Fig. 8 Indoor unit with heating circuit and bypass
[1] By-pass
[2] Flow
[3] Return
Fig. 9 Detailed view of bypass
[L] Minimum bypass length
[D] Pipe size
Fig. 10 By-pass
[A] Bypass, straight design
[B] Bypass, U-shaped design (total length including the elbow)
4.7 Maximum sensor
In some countries a high limit safety cut-out is required in underfloor
heating circuits.
▶ Observe country-specific regulations.
▶ Establish connection as described in chapter 6.7.7.
4.8 Insulating the hydraulic pipework
Insulating the pipework inside the building
CAUTION
Risk of burning!
Contact with uninsulated piping can inflict burns to the skin.
▶ Insulate all heat-conducting pipework using suitable thermal
insulation according to applicable regulations.
Insulating the pipework outside the building
NOTICE
Material damage from frost!
In case of a power outage the water in the hydraulic pipework may freeze.
▶ Use insulation with a thickness of at least 19 mm for pipework outdoors.
▶ Use insulation with a thickness of at least 12 mm for pipework indoors.
Insulating the pipework in the indoor unit
If the heating system is used for cooling below the dew point
(not recommended):
▶ Install vapour-tight insulation on all connections and pipework to
prevent condensation.
Dimensions/clearances Unit Value
External diameter D mm ≥ 22
Minimum bypass length L
• Straight version A
• U-shaped version B
mm
mm
≥200
≥100
Maximum clearance
between bypass and
indoor unit
m 1 – 2
0010031565-001
T
T
1
2
3

Installation
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Compress Hybrid 7000i AW – 6721833053 (2020/09)
5 Installation
5.1 Transport and storage
The indoor unit must always be transported in its packaging and stored
in an upright position. The indoor unit can be provisionally tilted for
transportation purposes if required.
After unpacking the indoor unit, do not place or set it down on the pipes
or on the side panel.
▶ After unpacking the indoor unit, lay it down on the back panel.
Do not store or transport the indoor unit at temperatures below – 10 °C.
5.2 Unpacking
▶ Remove the packaging according to the instructions on the packaging.
▶ Take out enclosed accessories.
▶ Check that all package contents are present.
5.3 Indoor unit installation
5.3.1 Removing the cover
To unlock the cover [1]:
▶ Unscrew the retained unlocking screw [2] on the underside of the
indoor unit using a suitable tool.
Fig. 11 Unlock the cover
[1] Cover of the indoor unit
[2] Unlocking screw
To detach the cover [2] from the bottom fixing [1]:
▶ Pull the cover [2] on the underside slightly forwards.
Fig. 12 Detach the cover from the bottom fixing
[1] Fixing on the underside
[2] Cover of the indoor unit
To detach the cover [2] from the top fixing [1]:
▶ Push the cover [2] slightly up.
Fig. 13 Detach the cover from the top fixing
[1] Fixing on the top side
[2] Cover of the indoor unit
0010031287-001
1
2
0010031288-001
2
1
0010031291-001
1
2

Installation
Compress Hybrid 7000i AW – 6721833053 (2020/09)
10
NOTICE
Material damage due to tensile forces on the EMS cable!
The control unit in the cover is connected to the installation
module via the EMS cable.
▶Pay attention to the length of EMS cable when removing
the cover.
To remove the cover [1]:
▶ Pull the sides of the cover [1] slightly apart at the back
(paying attention to the top cover) and pull the cover forwards.
▶ Detach the EMS cable from the [2] control unit.
Fig. 14 Removing the cover
[1] Cover of the indoor unit
[2] Remote control
5.3.2 Installing the indoor unit
Specifications:
• The pipework between the outdoor unit heat pump and the indoor
unit must be as short as possible.
CAUTION
Risk of injury and material damage due to unsuitable fixing
components!
If the fixing components used are unsuitable for the existing wall
construction material, a permanent fixing cannot be guaranteed.
The supplied wall plug is suitable for standard masonry and concrete.
▶ Use wall plugs that are suitable for the wall construction material.
▶ Install the mounting rail (scope of delivery) on a suitable wall using
the drilling template (Chapter 2.6).
▶ Hang the indoor unit centrally onto the mounting rail (Fig. 15).
Fig. 15 Hanging the indoor unit
▶ Insulate the pipework (Chapter 4.8).
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5.3.3 Fitting the cover
To fit the top cover [1]:
▶ Connect the EMS cable to the control unit [2].
▶ Pull the sides of the cover [1] slightly apart at the back (paying
attention to the top cover) and push the cover backwards.
Fig. 16 Fitting the cover
[1] Cover of the indoor unit
[2] Remote control
To attach the cover [2] to the top fixing [1]:
▶ Push the cover [2] slightly down.
Fig. 17 Attach the cover to the top fixing
[1] Fixing on the top side
[2] Cover of the indoor unit
To attach the cover [2] to the bottom fixing [1]:
▶ Push the cover [2] on the underside slightly back.
Fig. 18 Attach the cover to the bottom fixing
[1] Fixing on the underside
[2] Cover of the indoor unit
To lock the cover [1]:
▶ Screw in the locking screw [2] on the underside of the indoor unit
using a suitable tool.
Fig. 19 Locking the cover
[1] Cover of the indoor unit
[2] Locking screw
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5.4 Connecting the indoor unit to the outdoor unit
NOTICE
Residue in the pipework can damage the system.
Solids, metal/plastic filings, flux and thread tape residue and similar
material can get stuck in pumps, valves and heat exchangers.
▶ Keep foreign bodies from entering the pipework.
▶ Do not leave pipe parts and connections directly on the ground.
▶ When deburring, make sure that no residue remains in the pipe.
▶ Before connecting the heat pump and indoor unit, rinse the pipe
system to remove any foreign bodies.
NOTICE
Deformation due to heat!
If the temperature is too high, the insulation material in the indoor unit
deforms.
▶ Do not solder the piping to the indoor unit.
▶ Use clamp couplings to connect the pipes to the outdoor unit if
available.
▶ Size pipework as specified in the installation instructions for the
outdoor unit.
▶ Connect the flow of the outdoor unit to the heat transfer medium
outlet.
▶ Connect return to the outdoor unit to the heat transfer medium inlet.
Fig. 20 Connecting the indoor unit to the outdoor unit (schematic representation)
[1] Flow of the outdoor unit
[2] Return to outdoor unit
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5.5 Connecting the indoor unit to the external booster
heater and heating system
NOTICE
Deformation due to heat!
If the temperature is too high, the insulation material in the indoor unit
deforms.
▶ Do not solder the piping to the indoor unit.
▶ Use clamp couplings to connect the pipes to the outdoor unit if
available.
NOTICE
Risk of material damage due to leaking connections!
Mechanical stresses in connecting pipework can result in leaks.
▶ Install connecting pipework without mechanical stresses at the
connections on the boiler.
▶ Ensure that all connections are tight.
Establish the following connections at the indoor unit:
• Connect the return [3] from the heating system with particulate
filter [1].
• Connect the flow [2] to the heating system.
• Connect the pipework from the external booster heater [4].
• Connect the pipework to the external booster heater [5].
• Route a drain hose on a slope to a frost-free drain.
Fig. 21 Connection of the indoor unit to the heating system and the booster heater (example representation with bypass and additional heating pump)
[1] Particle filter
[2] Flow to heating system
[3] Return from the heating system
[4] Flow to the auxiliary heater
[5] Return to the auxiliary heater
[6] DHW connection (combi boiler)
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5.6 Fitting the outside temperature sensor
If the length of the temperature sensor cable outdoors is more than 15 m:
▶ Use screened cable.
Atemperaturesensor cablethat runsoutdoorsmust satisfy the following
requirements:
• Cable diameter: 0.5 mm2
• Resistance: max. 50 ohm / km
•Numberofconductors:2
• Maximum length: 50 m
▶ Mount the sensor on the coldest side of the house
(normally facing north).
– Protect the sensor from direct sunlight, draughts, etc.
– In addition, the sensor must not be installed directly under
the ceiling.
Fig. 22 Positioning the outside temperature sensor
5.7 Accessories
5.7.1 Mounting the flow temperature sensor
The installation of the flow temperature sensor T0 depends on the
design of the heating system.
No additional measures are required when the heating system is not
equippedwith abuffer cylinderasthe flowtemperaturesensoris already
integrated into the indoor unit.
If the heating system is equipped with a buffer cylinder:
▶ Install the flow temperature sensor T0 at the buffer cylinder.
▶ Electrical connection (Chapter 6.7.2).
Assembly downstream of the 3-way valve or at the buffer cylinder
If the flow temperature sensor is installed outside the indoor unit on the
buffer cylinder or downstream of the 3-way valve (e.g. when using a
heating circuit set), it must be removed from the indoor unit and
extended using a suitable extension cable of corresponding length
(H03VV-F 2x0.5 mm2) (Chapter 6.7.2).
5.7.2 Installing the heating circuit module
In the delivery scope a heating circuit without mixer can be controlled via
the controller.
If other heating circuits are to be installed, a heating circuit module is
required for each heating circuit.
▶ Install the heating circuit module, mixer, heating pump and other
components according to the selected system solution.
▶ Observe the relevant separate installation and operating instructions
when installing and adjusting the components.
▶ Electrical connection (Chapter 6.7.3).
5.7.3 Room temperature-dependent controller
In the default setting, the controller automatically regulates the flow
temperature depending on the outside temperature. A room
temperature-dependent controller can be installed for greater comfort.
▶ Electrical connection (Chapter 6.7.4).
5.7.4 Installing the accessories for the cooling mode
NOTICE
Damage to the indoor unit due to condensation
The indoor unit with mixer is not designed to be used in cooling mode
below the dew point.
▶ Only use the indoor unit in cooling mode above the dew point.
A prerequisite for using the heating system in cooling mode is that a room
sensor is installed in the heating system to prevent condensate formation.
There are two installation options:
• Room sensor with integrated humidity sensor
(CR10H or ModuLine 1010H).
• Room sensor (CR10 or ModuLine 1010) in combination with
humidity sensor in the heating system.
Use of a CR10H or ModuLine 1010H room sensor is recommended for
non-condensing cooling mode.
Installing a room sensor with integrated humidity sensor increases the
reliability of cooling mode since the flow temperature in this case is
automatically controlled via the control unit with reference to the current
dew point.
▶ Installing the room sensor with integrated humidity sensor
(instructions of the room thermostat).
▶ Electrical connection (Chapter 6.7.4).
If a room sensor is used without an integrated humidity sensor, an
additional humidity sensor must be installed in the heating system.
▶ Fit the room sensor in order to adjust the cooling mode of the heating
system (observe instructions for the room thermostat).
▶ Fit the humidity sensor on the pipes of the heating system
(observe instructions of the humidity sensor).
▶ Electrical connection (Chapter 6.7.4).
1/2H(min 2m)
H
N
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WE
NW NE
SW SE
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5.7.5 Installation with swimming pool
NOTICE
Danger of faults!
If the swimming pool mixer is installed in the wrong location in the
system, faults may occur. The swimming pool mixer must not be installed
in the flow where it could block the pressure relief valve.
▶ Assemble the swimming pool mixer in the return to the indoor unit
(as shown in the example image for swimming pool installation).
▶ Mount the tee in the flow from the indoor unit upstream of the bypass.
▶ Do not install the swimming pool mixer as heating circuit in the system.
A prerequisite for using the swimming pool heating is the installation
of a swimming pool module (accessory).
▶ Installing the swimming pool (swimming pool instructions).
▶ Installing the swimming pool mixer.
▶ Insulate all pipes and connections.
▶ Install the pool module (Instructions for the pool module).
▶ Electrical connection (Chapter 6.7.5).
▶ Set the elapsed time of the swimming pool diverter valve during
commissioning (instructions of control unit).
▶ Make the necessary settings for the swimming pool mode
(instructions for control unit).
Fig. 23 Example showing swimming pool installation
[1] Swimming pool module
[2] Pool
[VC1] Swimming pool mixer
[HS] Heating system
6 Electrical connection
WARNING
Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.
▶ Before working on electrical parts, disconnect all phases of the
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
WARNING
Danger to life from electric current!
Incorrectlyconnectedelectricalcables canresultin faultyoperationwith
potentially dangerous consequences.
▶ When making the electrical connections, refer to the connection
diagrams for the individual devices and components.
▶ When performing maintenance, label all power cables before
disconnecting them.
NOTICE
Material damage if the maximum current consumption is exceeded!
Short-term high (start-up) currents can can damage electrical
components.
▶ When connecting external components to the control unit, make sure
that the sum of the individual currents consumed by these
components does not exceed the maximum current consumption
(data plate).
Note the following when making electrical connections:
▶ Electrical work on heating systems must only be carried out by
qualified electricians. If you are not suitably qualified, ask a licensed
heating contractor/electrician to establish the electrical connection.
▶ Make sure that all system components are earthed (earthing is a
constituent part of the control unit used).
▶ Observe all local regulations!
Connect cables as shown in the connection diagrams
(Chapter 12.2, page 33).
1
M
VC1
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6.1 Connecting the device
Due to the IP rating IPX1D, the appliance must not be installed in
protection zones 1 and 2.
Fig. 24 Protection zones
[1] Protection zone 1, directly above the bath
[2] Protection zone 2, within a radius of 60 cm from the bath/shower
6.2 Routing cables
NOTICE
Material damage due to damaged cables!
System damage may occur if cables are installed incorrectly or next to
hot system components.
▶ Make sure cables are not pinched.
▶ Route all cables through cable feeds.
Fig. 25 Cable glands
[1] Cable feed for sensor, CAN BUS and EMS bus
[2] Cable feed for mains power supply (230 V)
NOTICE
Material damage due to induced overvoltage!
Incorrectly installed cables can lead to induced overvoltages
which can cause the control unit to malfunction or be damaged.
▶ Route 230 V cables and extra-low voltage cables separately.
EMS-BUS and CAN-BUS are not compatible.
▶ Do not connect EMS-BUS units to CAN-BUS units.
It must be possible to safely interrupt the power supply to theappliance.
▶ Install a separate safety switch that completely de-energizes the
indoor unit. For a separate power infeed, a safety switch is required
for each infeed.
▶ Select the appropriate conductor cross-sections and cable types for
the respective fuse protection and routing method.
▶ Mount the enclosed terminals on the installation PCB.
▶ Connect the unit as shown in the connection diagram.
No additional consumers may be connected.
▶ When changing the PCB, note the colour coding.
Whenextendingtemperaturesensorcables,use the following conductor
diameters:
• up to 20 m long cable: 0.75 to 1.50 mm2
• up to 30 m long cable: 1.0 to 1.50 mm2
0 010 007 511-001
225 cm
2
21
1
60 cm
60 cm
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6.3 Connecting the power supply
A cable of the type H05V2V2 F, 3x1.5 mm2which is 2.5 m in length is
connected as standard to the mains power supply terminal (Fig. 26).
Alternatively an on-site connection can be established using a suitable
cable.
▶ Remove the cover (Chapter 5.3.1, page 9).
▶ Feed connecting lead through the cable feed [2] into the appliance.
▶ Establish a permanent connection to the mains power supply in
accordance with the locally applicable regulations.
▶ Connectthe mainspowersupplyvia themains power supplyterminal
on the retaining plate (Fig. 26, [2]).
WARNING
Danger to life from electrical shock in the event of incorrectly
connected cables!
Ensure correct polarity of the N and L cables.
▶ Establish clamp connection correctly.
▶ Fully tighten clamp connection.
▶ Do not use an adapter plug (push fit connections).
▶ Make sure the potentiometer setting is correct for hybrid application
(P=3 and A=0) as shown in figure 26, [1]. If necessary, turn the
direction arrow to the corresponding position with a screwdriver.
Fig. 26 Connecting the power supply
[1] Encoders
[2] Mains power supply terminal
[3] External booster heater terminal (volt free)
6.4 CAN-BUS
NOTICE
The system will be damaged if the 12 V- and the CAN-BUS
connections are incorrectly connected!
The communication circuits are not designed for 12 V constant voltage.
▶ Check to ensure that the cables are connected to the contacts with
the corresponding markings on the modules.
Accessories such as power guards which are to be connected to the
CAN-BUS are connected to the installation module of the indoor unit
parallel to the CAN-BUS connection for the outdoor unit. Accessories can
also be connected in series with other units connected to the CAN-BUS.
The indoor and outdoor units are connected by a communication line,
the CAN-BUS.
ALIYCYcable (TP)2 x 2 x 1.5 mm2(orequivalent)is asuitablefor use as
an extension cable outside the appliance. Alternatively, twisted pair
cables approved for outdoor use with a minimum cross-section of
0.75 mm2can be used. In doing so, only earth the shielding on one side
(indoor unit) and to the casing.
The maximum permissible cable length is 30 m.
The connection is made with four wires, as the 12 V supply is also
connected. The 12 V and CAN-BUS connections are marked on the
modules.
The"Term" changeover switch identifies the start and end of CAN-BUS
loops. Ensure that the correct modules are terminated and that all other
modules are not terminated.
Fig. 27 Termination CAN-BUS
On CAN-BUS completed
Off CAN-BUS not completed
6.5 Connecting the outside temperature sensor
If the length of the temperature sensor cable outdoors is more than
15 m, use a screened cable. The screened cable must be earthed in the
indoor unit. The maximum length of screened cable is 50 m.
Atemperaturesensor cable thatruns outdoors must satisfythe following
requirements:
• Cable diameter: 0.5 mm2
• Resistance: max. 50 ohm / km
• Number of conductors: 2
• Maximum length: 50 m
▶ Connect outside temperature sensor to terminal T1 (  Chapter 12.2 ).
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6.6 External booster heater (uncommon in UK market)
6.6.1 Connect the actuator of the external booster heater
(e.g. floor standing boiler)
The external booster heater can be connected in two different ways:
Power control via 0-10V output:
▶ Connect the external booster heater to the installer module at
terminal EM0 0-10V (Chapter 12.2, page 33 [29]).
With some heat generators, an additional module (e.g. MU100, accessory)
must be installed to provide a 0-10V input.
– or –
On/Off control (volt free output):
▶ Connect the external booster heater to theconnection terminalof the
relay box (Fig. 28 [1], [2] and chapter 12.2, page 33 [23]).
When there is heat demand from the external booster heater, the
relay box establishes a zero volt connection between the contacts of
the connection terminal.
Fig. 28 Connection terminal on the relay box
[1] Connection terminal
[2] Relay box
The mixing valve does not open immediately after the external booster
heater is activated. A delay time for opening the mixing valve can be set
at the control unit (Chapter 8.5.2).
Always set the delay time to 0 min for hybrid applications.
Possible cycling of the boiler is a normal procedure.A buffer cylinder can
be installed if problems occur with the external auxiliary heater because
the elapsed time is too short.
▶ For more information, contact the manufacturer of the external
booster heater.
6.6.2 Connect the alarm signal for the external booster heater
Connection of the alarm signal depends on whether or not the external
booster heater has a 230 V alarm output.
If the external booster heater is equipped with a 230 V alarm output:
▶ Remove jumper between terminal 61 and 64
(Chapter 12.2, page 33).
▶ Connect 230 V alarm signal (AC) as shown in figure 29 to the
installer module at terminal FM0 (Chapter 12.2, page 33 [26]).
Fig. 29 Connection for external booster heater with 230 V alarm output
If the external booster heater is not equipped with a 230 V alarm output:
▶ Connect alarm signal as shown in figure 30 to the installer module at
terminal FM0.
Fig. 30 Connection for external booster heater without 230 V
alarm output
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6.7 Accessories
6.7.1 EMS BUS
EMS-BUS for accessories
The following applies to accessoriesthat are connected to the EMS-BUS
(see also the installation instructions for the respective accessories):
▶ IfseveralBUSunits areinstalled,theremustbe aminimumspacingof
100 mm between them.
▶ If several BUS units are installed, connect them in series or in a star
configuration.
▶ Use cable with a minimum cross-section of 0.5 mm2.
▶ In case of external inductive interferences (e.g. from PV systems),
use screened cables. Only earth the shielding to the casing on one side.
▶ Connect the cable on the installation module to terminal EMS-BUS.
If a component is already connected to the EMS terminal, establish the
connection in parallel to the same terminal according to fig. 31.
Fig. 31 EMS connection on the installer module
EMS NSC/IP
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Connection alternative for EMS bus
Fig. 32 Connection alternative for EMS bus
[A] Star configuration and connection in series with external
junction box
[B] Star configuration
[C] Serial connection
[1] Installation circuit board
[2] Accessory modules (room temperature-dependent controller,
heating circuit module and solar module)
B CA
111
222
222
222
222
EMSbus EMSbus
0010031567-001