Ochsner AIR 7, AIR 41, AIR 11, AIR 18, AIR 23 Operating And Installation Manual

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HIGH EFFICIENCY AIR/WATER HEAT PUMPS

OPERATING AND INSTALLATION MANUAL

AIR 7

►

AI R 11

►

AIR 18

►

AIR 23

►

AIR 29

►

AIR 41

►

CONTENTS

PLEASE NOTE OPERATION

1. Information on documentation 4

1.1 Safety information 4

1.1.1 Arrangement of safety information 4

1.1.2 Symbols and possible dangers 4

1.1.3 Keywords 4

1.2 Other symbols 5

1.3 Units of measurement 5

1.4 Specied performance data 5

2. Safety 5

2.1 Intended use 5

2.2 General safety information 5

3. Appliance description 6

3.1 Functionality 6

3.2 Appliance components 6

3.2.1 Indoor unit 6

3.2.2 Outdoor unit 7

3.2.3 Heat pump control unit 7

3.3 Name plate 7

4. Activating settings 8

4.1 Operating costs 8

4.1.1 Flow temperatures 8

4.1. 2 Ventilation 8

4.1. 3 Heating setback program 9

5. Maintenance and care 9

6. Problem solving 9 INSTALLATION

7. Safety 10

7.1 General safety information 10

7. 2 Regulations, codes and standards 10

8. Appliance description 10

8.1 Standard delivery 10

8.2 Hydraulic variants of the indoor unit 11

9. Preparing to install the appliance 13

9.1 Indoor unit installation location 13

9.1.1 Keep minimum clearances 13

9.2 Outdoor unit installation location 13

9.2.1 Keep minimum clearances 14

9.3 Foundations for the outdoor unit 14

9.3.1 Laying spot foundations 15

9.3.2 Laying strip foundations 16

9.3.3 Installing on at roofs 16

9.4 Preparing the refrigerant lines 17

9.4.1 Line lengths 18

9.4.2 Pipe diameter 18

9.4.3 Preparing the wall outlets 19

9.4.4 Preparing refrigerant lines passing through open air 20

9.4.5 Preparing underground refrigerant lines 20

9.5 Preparing the electrical connections 22

9.5.1 Heat pumps for three-phase alternating current 22

9.5.2 Heat pumps for single phase alternating current 23

9.5.3 Cables from main distributor to indoor unit 23

9.5.4 Cables from indoor to outdoor unit 23

9.5.5 Temperature sensor 23

9.5.6 Pumps and servomotors (230 VAC) 24

9.5.7 PSU signal contact 24

9.5.8 Smart Grid 24

10. Appliance installation 25

10 .1 Installation of indoor unit 25

10 .1.1 Delivery and transportation 25 10 .1.2 Positioning the appliance 26 10 .1.3 Disassembling the appliance casing 26 10 .1.4 Assembling the appliance casing 27

10.2 Installing the outdoor unit 28 10 . 2 .1 Delivery and transportation 28

10.2.2 Positioning the appliance 29

10.2.3 Disassembling the appliance casing 29

10.2.4 Installing the snow cover 29

10.2.5 Fitting the cylindrical silencer 29

10.2.6 Installing the SSP snow cover 30

10.3 Connecting the heat sink system 31 10 . 3 .1 Connecting the heating water 31

10.3.2 Safety valve drain 32

10.3.3 Filling the heating system 32

10.3.4 Diaphragm expansion vessel (DEV) 33

10.3.5 Flow metering 33

10.3.6 Cooling version 33

10.3.7 Connecting the DHW 33

10.4 Electrical connection 34 10 . 4 .1 General 34

10.4.2 Electrical connection of the indoor unit 34

10.4.3 Electrical connection of the outdoor unit 36

10.5 Connecting heat source system 37 10 . 5 .1 Connecting the refrigerant lines 37

10.5.2 Checking for leak tightness 38

10.5.3 Filling the refrigerant circuit with refrigerant 38

10.5.4 Insulating the refrigerant lines 38

11. Commissioning 39

11.1 Before switching on for the rst time 39

11. 2 Testing the control circuit 39

11. 3 Adjusting the ow rate 39

11. 4 Heat generator pump (HGP) 42

11. 5 Necessary conditions for commissioning 43

11. 6 Commissioning the system 44

11.7 Decommissioning 45

12. Troubleshooting 46

12 .1 Fault messages on the master controller 46

12.2 Reset high limit safety cut-out 48

13. Appliance maintenance 48

13 .1 Testing safety valve 48

13.2 Maintenance contract 49

14. Specication 50

14 .1 Heat pumps for three-phase alternating current 50 14 .1.1 Data table 50 14 .1.2 Output diagrams 54 14 .1.3 Details of energy consumption 60

14.2 Heat pumps for single phase alternating current 62 14 . 2 .1 Data table 62

14.2.2 Output diagrams 64

14.2.3 Details of energy consumption 66

14.3 Limits of use 67

14.4 System schematic diagrams 68

14.5 Voltage quality in island mode 84

14.6 Dimensions and connections 85 14 . 6.1 Indoor unit 85

14.6.2 Outdoor unit 86

15. Environment and recycling 90

16. Declaration of Conformity 91

17. ERP-Data 93

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PLEASE NOTE | Information on documentation

PLEASE NOTE

f The appliance can be used by children over the age

of eight years and by people with reduced physical, sensory or mental abilities or with a lack of experience and knowledge, if they are supervised or instructed on the safe use of the appliance and understand the dangers that can arise from its use. Children must not be allowed to play with the appliance. Children must not be allowed to clean or carry out user maintenance on the appliance without supervision.

f Connection to the mains electricity supply must be

by means of a xed connection. It must be possible to isolate the appliance from the mains supply with a multi pole switch which has a gap of at least 3 mm across all poles.

f You must not disconnect the mains supply even

outside the heating period. If the power supply is disconnected, active frost protection of the system cannot be guaranteed.

f You do not need to switch off the system for the

summer. The heat pump control unit changes over automatically between summer and winter.

OPERATION

1. Information on documentation

The “Please note” and “Operation” sections are intended

for the appliance user and the qualied contractor.

The “Installation” section is intended for the qualied con-

tractor.

Unless otherwise stated, all the content of this documentation applies to the appliances listed on the title page. This documentation describes appliances that are not always standard items. There may therefore be differences to your

specic appliance.

Information

Read all of this documentation carefully before using the appliance and keep the documents safe. Pass this documentation on to any new user.

1.1 Safety information

1.1.1 Arrangement of safety information

f Observe the minimum clearances in order to ensure

fault-free operation of the appliance and to allow for maintenance work on the appliance.

f In bivalent mode, the return water from the second

heat generator can ow through the heat pump. Note that the return water temperature must not exceed 65°C.

f Maintenance work such as checking the electrical

safety of the appliance may only be carried out by a

qualied contractor.

f We recommend an annual inspection (to assess the

appliance‘s actual condition) and if necessary maintenance (to reinstate it to its expected condition) by a

qualied contractor.

KEYWORD: Type of risk

The possible consequences of not observing the safety information are shown here.

Instructions for action to remedy or remove

the source of danger are shown here.

1.1.2 Symbols and possible dangers

Symbol Type of risk

Injury

Electrocution

Burns (burns, scalding)

Material damage (appliance, consequential and environmental damage)

1.1.3 Keywords

Keyword Meaning

DANGER Failure to observe this information will result in seri-

WARNING Failure to observe this information may result in se-

CAUTION Failure to observe this information may result in

ous injury or death.

rious injury or death.

non-serious or minor injury.

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OPERATION | Safety

1.2 Other symbols

► This triangular symbol is used as a bullet point.

These two arrows represent the symbol for an in-

struction. This shows that there is something you must do. The actions required are described step by step.

{{ These symbols show you the level of a software

menu. In this example, three menu levels are indicated.

1.3 Units of measurement

Information

In these documents, unless otherwise specied,

all linear measurements (e.g. in tables and illustrations) are given in millimetres.

1.4 Specied performance data

The performance data of the appliance indicated in these documents (text, tables and diagrams) have been calculated according to standardised measurement conditions. However, these measurement conditions often do not completely correspond to the plant-specic conditions applicable in the respective user‘s system. System-specic factors that can affect the conditions include, for example,

the specic design of the system, the age of the system and the actual ow rates. For this reason, the stated per- formance data can differ from plant-specic performance

data.

2. Safety

2.1 Intended use

The appliance is intended for use in a domestic environment. It can safely be used by persons who have received no instruction. The appliance can similarly be used in a non-domestic environment such as commercial premises, as long as it is used in the same instructed manner.

Any use of the appliance that is different from or goes beyond this is not regarded as intended use. “Intended use” also includes observing this documentation and the documentation of any accessories used.

Information

Air pressure and air humidity will affect the operational reliability of the electrical components in the heat pump system (dielectric strength). The location of the heat pump system must be no more than 1000 m above sea level.

2.2 General safety information

Observe the following safety information and instructions for the appliance.

► Only qualied contractors should carry out the electri-

cal work and installation of this appliance.

► Commissioning and maintenance of the appliance

may be carried out only by OCHSNER Customer Service or by customer service partners authorised by OCHSNER.

The stated performance data can be conrmed only if

the measurements taken for the appliance are carried out according to the relevant standardised measurement conditions.

► The authorised contractor is responsible for compli-

ance with all relevant regulations during installation and commissioning.

► Operate the appliance only when fully installed and

with all safety equipment tted.

► Protect the appliance from dust and dirt ingress dur-

ing building work. Use the plastic cover provided.

► Alterations to the appliance may be carried out only

by OCHSNER Customer Service or by customer service partners authorised by OCHSNER.

► Functions to protect the heat pump can be enabled

using the controller. However, since the controller is

not certied as a safety device, safety measures in

case of breakdown or damage to the heat pump (e.g. additional external switching of the safety devices in use) must comply with local regulations. In the case of upgrades or updates to the controller software, all function parameters of the heat pump must be checked.

► Before commencing work on electrical connections

and installation, the heat pump system must be isolated and voltage-free.

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OPERATION | Appliance description

13_03_001

WARNING: Injury

The appliance may be used by children aged 8 and up and persons with reduced physical, sensory or mental capabilities or a lack of experience provided that they are supervised or that they have been instructed on how to use the appliance safely and have understood the possible risks. Children must not be allowed to play with the appliance. Children must not be allowed to clean or carry out user maintenance on the appliance without supervision.

3. Appliance description

The appliance is an air/water heat pump consisting of an indoor unit and an outdoor unit. The appliance can be used to heat a building and provide domestic hot water (DHW).

3.1 Functionality

An air/water heat pump extracts thermal energy from the ambient air (low temperature) and transmits it together with electrical drive energy in the form of useful heat (higher temperature) to a heating and/or DHW circuit.

The heat pump consists of separated circuits linked together via heat exchangers:

► Heat source circuit (extracting heat)

► Refrigerant circuit

► Heat sink circuit (supply of heat to the central heating

and/or DHW)

The operating principle of an air/water heat pump:

1 Evaporator (n heat exchanger) 2 Compressor 3 Condenser (plate heat exchanger) 4 Expansion valve 5 Heat sink (heating, DHW) 6 Air as heat source

3.2 Appliance components

3.2.1 Indoor unit

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The indoor unit is intended to be installed only inside the building. The indoor unit contains the compressor, which in terms of sound technology is acoustically decoupled a number of times from the casing. The casing is acoustically optimised and allows particularly quiet operation.

OPERATION | Appliance description

11_02_200_214_01_004

Compressor

The fully hermetically sealed compressor is designed for high efciency heat pump applications. A suitable starting current limiter for the compressor is installed in the indoor unit.

Electric booster heater

The appliance is tted with an electric booster heater

(immersion heater). At low outdoor temperatures, the appliance operates in bivalent-parallel mode. The appliance can also be combined with an additional heat generator.

Condenser

The condenser takes the form of a plate heat exchanger, which is built of stainless steel and insulated on all sides against condensation and heat loss.

3.2.2 Outdoor unit

The outdoor unit is intended to be installed outside. The outdoor unit is designed as a horizontal split evaporator. The indoor unit is connected to the outdoor unit with refrigerant lines, along with electrical control and power supply cables.

► 1x direct circuit (heating and/or cooling)

► 1x mixed circuit (heating and/or cooling)

► 1x directly heated DHW cylinder (with electric booster

heater)

► 1x heat pump (heating and cooling)

► 1x additional heat generator (electric booster heater

or enable contact for external heat generator)

3.3 Name plate

Two name plates are attached to the indoor unit to identify your heat pump. In addition, a label with the serial number is attached to the right-hand casing panel of the appliance.

Evaporator

The evaporator is a part of the outdoor unit and consists

of copper pipes in a set of aluminium ns.

Information

With an air/water heat pump, frost may form on

the evaporator ns of the outdoor unit, depending

on the air temperature (below approx. +7°C), air humidity and the operating point. The evaporator

ns are automatically de-iced again in the cyclical

defrosting mode of the heat pump.

Fan

The outdoor air is blown across the evaporator by a quiet fan.

3.2.3 Heat pump control unit

The OCHSNER heat pump controller includes devices for controlling heat pump heating systems with a cooling function as well as DHW heating. In its standard version, the heat pump control unit consists of the OTE controller and the master controller, both of which are installed in the indoor unit.

1 Name plate (back of indoor unit and front of control

box)

2 Serial number (right-hand casing panel)

The OTE controller can control the following system circuits and heat generators:

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OPERATION | Activating settings

4. Activating settings

Settings are activated with the master controller on the indoor unit (with graphic display or touchscreen), or via a remote controller with touchscreen that is attached to the wall.

Mo 09 .01.17 10:02

1 11

1 Button A:

Press to go back one menu step (ESC) 2 Displays function of Button A or fault message 3 Operating status 4 Outdoor temperature 5 Date 6 Time 7 DHW temperature 8 Actual room temperature 9 System temperature 10 Displays function of Button B 11 Button B:

Turn to select from menu or to change setting

Press to conrm (ENTER)

-12.5C 22°C 52.5°C

Heating mode

OCHSNER OTE

The master controller is mounted in an easily accessible plastic cover on the top of the indoor unit. Two buttons are provided for controlling the menu, with an illuminated graphic display.

32.5°C

11_01_200_701_01_01_001

Pressing Button B on the right calls up the main menu with a diagram of the heating system. Each heat consumer (heating circuit, DHW circuit) and each heat generator (heat pump, electric booster heater, boiler etc.) has its own menu and corresponding submenus.

Pressing Button A takes you back one step to the previous menu.

You will nd further information on operating the heat pump

control unit in the control unit‘s operating instructions which are also supplied with the heat pump.

Information

The heat pump has no separate on/off switch. In an emergency, the system must be shut down via

the specied safety devices.

Ensure easy access to the safety devices. It

must be possible to perform an emergency shutdown at all times.

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4.1 Operating costs

In the rst two heating seasons, higher running costs are

to be expected (up to 50% more, depending on residual moisture in the building). Enabling the screed drying program will also increase operating costs further.

4.1.1 Flow temperatures

For optimum operation of your heat pump, you should aim

for the lowest possible heating ow temperatures (and also

DHW temperatures). The maximum system temperature for your heat pump should be restricted to 60°C.

Information

Increasing the room temperature by 1°C results in an increase in consumption of 5-7%.

4.1. 2 Ventilation

Any ventilation should be intermittent, especially during the heating period, and according to your own require-

OPERATION | Maintenance and care

ments. Intermittent ventilation is considerably more energy

efcient than permanent ventilation, and therefore saves

money. Avoid permanent ventilation.

4.1. 3 Heating setback program

From an energy efciency point of view, using a time pro-

gram to reduce the heating ow temperature is especially

not recommended for air/water heat pumps with low tem-

perature heating systems (such as underoor heating).

These systems are slow to respond and, due to the addi-

tional output from the system required following the end

of the setback phase, it is possible that the second heat

generator (boiler, electric immersion heater) will cut in. This

can lead to higher operating costs.

5. Maintenance and care

We recommend an annual inspection and if necessary

have your heat pump serviced by OCHSNER Customer

Service.

Material damage

Maintenance work on electrical components of the

heat pump may be carried out only by qualied

contractors.

Material damage

Abrasive tools must not be used to clean the evap-

orator ns in the outdoor unit.

Any dirt on the ns should be blown away

using compressed air (max. 8 bar), in the di-

rection of normal air ow. If the ns are very dirty, contact your OCHS-

NER system partner or OCHSNER Customer Service.

If it is necessary to clean the casing sections of the

indoor or outdoor unit, use only a damp cloth (with water or a weak soapy solution). Do not use any abrasive or aggressive cleaning materials.

During the building phase, protect the indoor and

outdoor units from dirt and dust with a suitable cover. Use the plastic cover provided.

Ensure that the heating circuit is lled with sufcient

water.

Ensure that any condensation beneath the outdoor

unit can drain away without freezing all year round.

Information

If the outdoor unit is covered with a thick layer of snow, this can reduce system efciency.

Remove snow on and around the outdoor unit

as necessary. If required, install the snow cover available as

an accessory for the outdoor unit.

Information

Ensure that the refrigerant circuit of your heat pump is tested for leaks once a year (in acc. with Regulation (EU) no. 517/2014).

Ensure year-round access to soldered joints in

the refrigerant circuit. Document the results of the leakage test in the

system test report.

6. Problem solving

Problem Cause Solution

Too little DHW is available or the central heating system is too cold.

The appliance is leaking water.

If you have a problem that you cannot resolve, contact

the system installer, a qualied contractor or OCHSNER

Customer Service.

Faults are displayed as”Er XXX”on the master controller of the OTE control unit. If a fault occurs, contact your system installer. The system installer knows your hydraulic system and how it operates. The causes of faults can often be found in the settings or in the hydraulics.

Before contacting the installer, make a note of the serial number and the heat pump model. The serial number and heat pump model of your appliance are shown on the name plate. The name plates are attached to the back of the appliance on the outside and behind the front appliance casing panel (control box outer side).

► Customer service hotline for Austria:

Tel: +43 (0) 504245 - 499 Email: kundendienst@ochsner.at

The power supply to the appliance has been cut off

The drain for the safety valve is blocked.

Check the safety device on the main distributor board for your house. Switch the safety device back on. If the safety device triggers again after being switched back on, contact a qualified contractor or OCHSNER Customer Service.

Clean the safety valve drain. See „Safety valve drain“ on page 32.

Ensure that the outdoor unit (both the top and the un-

derside) is kept free from snow, leaves and twigs and other foreign bodies.

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► Customer service hotline for Germany:

Tel: +49 (0) 69 256694 - 495 Email: kundendienst@ochsner.de

► Customer service hotline for Switzerland:

Tel: +41 (0) 800 100 - 911 Email: kundendienst@ochsner.com

INSTALLATION | Safety

INSTALL ATION

7. Safety

Only a qualied contractor should carry out installation,

commissioning, maintenance and repair of the appliance.

7.1 General safety information

We guarantee trouble-free function and operational reliability only if the original accessories and spare parts intended for the appliance are used.

7. 2 Regulations, codes and standards

Information

Observe all applicable national and regional regulations and instructions.

8. Appliance description

8.1 Standard delivery

The standard delivery of your appliance includes the following components.

► 1x indoor unit:

The following components are installed in the indoor unit:

AIR 7 AIR 11 AIR 18

Hydraulic variant M2-1 M2-2 M2-3 M2-4 M4-1 M4-2 M4-3 M4-4

Starting current limiter + + + + + + + +

Flow meter (heat sink side)

Circulation pump (heat sink side)

Internal flexible hose + + + + + + + + Safety valve + + + + + + + + Master control unit + + + + + + + + OTE heat pump con-

troller Diaphragm expansion

vessel 24 l 3-way switching mod-

ule (DHW) Electric booster heater

8.8 kW

+ + + + + + + +

+ + + + - - - -

+ + - - + + - -

+ - + - + - + -

AIR 23 AIR 29 AIR 41

► 1x outdoor unit:

Evaporator, expansion valve, fan

► 3x connection pipes (45°):

For vertical or horizontal connection to the heating system.

► 1x outdoor temperature sensor (TA)

► 1x contact sensor for a mixed circuit (TMK)

► 2x pocket sensors for a heat pump buffer tank

(TPO, TPM)

► 1x pocket sensor for a DHW cylinder (TB)

► 1xfoundationxingkitfortheoutdoorunit

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INSTALL ATION | Appliance description

11_02_200_202_01_019

8.2 Hydraulic variants of the indoor unit

The indoor unit is available in eight different hydraulic variants that are illustrated schematically below. Possible

system congurations for the hydraulic versions of the indoor unit are illustrated in „System schematic diagrams“ on page 68.

M2-3

43 521

M2-2M2-1

3 521

M2-4

1 Suction gas line 2 Liquid line 3 Heating water/DHW return 4 DHW ow 5 Heating water ow 6 Heat generator pump 7 Diaphragm expansion vessel 8 3-way switching module 9 Flow meter 10 Safety valve 11 Electric booster heater 12 Heat exchanger (heat sink side)

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INSTALLATION | Appliance description

43 521

M4-2M4-1

3 5

3 521

M4-4M4-3

1 Suction gas line 2 Liquid line 3 Heating water/DHW return 4 DHW ow 5 Heating water ow 6 Safety valve 7 3-way switching module 8 Flow meter 9 Heat generator pump 10 Electric booster heater 11 Heat exchanger (heat sink side)

11_02_200_202_01_020

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INSTALL ATION | Preparing to install the appliance

11_05_200_214_01_001

9. Preparing to install the appliance

Before installing the indoor and outdoor units, preparatory

work needs to be carried out by qualied contractors.

9.1 Indoor unit installation location

Material damage

The indoor unit is intended to be installed only inside the building. It must not be installed in rooms with high levels of humidity (permanently above 70%).

Information

Plan the installation sites for the outdoor and indoor units such that the pipework carrying the refrigerant is as short, straight and simple as possible.

A ≥ 1000 mm B ≥ 500 mm C ≥ 500 mm D ≥ 50 mm E ≥ 500 mm

The installation location for the indoor unit must meet the following requirements:

► A dry and frost-free room

► Sound optimised environment

► A horizontal, adequate load bearing oor (for weight

of indoor unit, see „Specication“ on page 50)

► Not situated directly below or above bedrooms

► Max. room temperature 30°C

► The installation room must not be subject to a risk of

explosions arising from dust, gases or vapours.

9.1.1 Keep minimum clearances

Observing the specied minimum clearances for the indoor

unit ensures:

► Correct installation of the appliance

► Fault-free operation

► Ability to carry out maintenance on the appliance.

9.2 Outdoor unit installation location

Information

Plan the installation sites for the outdoor and indoor units such that the pipework carrying the refrigerant is as short, straight and simple as possible.

Information

When laying refrigerant lines in the ground, schedule the work so that the pipe liner can be laid together with the already inserted refrigerant lines in the trench between the outdoor and indoor units.

- If the pipe liner is laid empty, inserting the re-

frigerant lines afterwards will be difcult if not

impossible.

The outdoor unit is intended to be installed only out of doors. Please note the following with regard to the installation location of the outdoor unit:

► Select the outdoor unit installation location such that

the appliance is safely accessible from all sides all year round.

► Avoid installing it in a hollow or ditch (a “pool” of cold

air).

► An optional snow cover is available to protect the

outdoor unit fan in case of heavy snowfall. Where necessary, ensure that a snow cover is installed (according to installation site and local weather conditions).

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INSTALLATION | Preparing to install the appliance

Material damage

The air ow through the evaporator must not be

obstructed by surrounding buildings. A reduced air

ow rate can lead to loss of efciency in the system.

Please note the following with regard to installation in coastal areas:

► The standard design of outdoor unit must be installed

at least 1 km from the sea.

► Outdoor units with special coating, suitable for coast-

al locations, must be installed at least 200 m from the sea.

► The installation location selected should always be on

the leeward side of the building (the side facing away from the sea).

Please note the following with regard to sound emissions from the outdoor unit:

► Avoid installing on reverberant ooring.

► Avoid installing between building walls. The walls can

increase the noise level.

► Avoid installing next to bedrooms.

Information

Plants and cultivated areas around the outdoor unit, subject to minimum clearances, can reduce the noise level of the outdoor unit.

11_05_200_504_002

A ≥ 3000 mm (minimum clearance to roof) B ≥ 1000 mm (minimum clearance to a wall) C 100 mm or ≥ 1000 mm (minimum longitudinal clear-

ance to a wall)

Information

The minimum clearance between two outdoor units (e.g. connected in cascade) is 1000 mm on all sides.

9.3 Foundations for the outdoor unit

11_05_200_504_001

9.2.1 Keep minimum clearances

Observing the specied minimum clearances for the outdoor unit ensures:

► Correct installation of the appliance

► Fault-free operation

► Ability to carry out maintenance on the appliance.

It is permissible to install the outdoor unit under a roof if the space around the unit is permanently open on three sides.

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A permanent foundation is required beneath the outdoor unit. The foundations must meet the structural require-

ments of the outdoor unit (see Specication).

Provide for frost-free drainage (e.g. a gravel bed con-

nected to a drain) for condensation that forms on the outdoor unit.

Where refrigerant lines are to be laid in the ground,

ensure correct positioning of the pipe liner when laying the foundations.

Use underground waste pipes (with a smooth inner

surface) for the pipe liner.

INSTALL ATION | Preparing to install the appliance

11_04_200_504_003

11_04_200_504_004

Ensure that the outdoor unit is adequately secured,

paying regard to the wind load occurring at the installation location.

CAUTION: Risk of slipping

If drainage for condensation is inadequate, ice can build up in winter in the area around the outdoor unit.

Ensure drainage for condensation is sufcient

even at low temperatures.

Information

Insulation used beneath the soil must be made of a closed-cell material. Otherwise, the thermal insulation of the material will be impaired.

100

900

Dig out the foundation trench.

Place in position four underground waste pipes

(Ø ≥ 250 mm).

≥ 800

9.3.1 Laying spot foundations

900

Ø250

1 Pipe liner for the connecting lines (where installed

underground) 2 Gravel bed 3 Drainage pipe (frostproof) 4 Spot foundation (with underground waste pipe)

Ensure correct horizontal and vertical positioning of

the underground waste pipes.

Place a drainage pipe along the base of the trench.

≥ 1800

1 Underground waste pipe 2 Pipe liner for underground connecting lines 3 Drainage pipe (frostproof) 4 Gravel bed

In the case of underground connecting lines, allow for

the pipe liner.

11_04_200_504_001

Fill the foundation trench with coarse gravel. If the

pipe liner (with refrigerant lines) is to be installed at a later point, in the case of underground connection lines, this must be allowed for in the foundation trench.

Fill the underground waste pipes with concrete.

A B C AIR 7 1110 270 ≥ Ø160 AIR 11 1110 270 ≥ Ø160 AIR 18 1110 270 ≥ Ø160 AIR 23 2040 300 ≥ Ø200 AIR 29 2040 300 ≥ Ø200 AIR 41 2040 330 ≥ Ø250

Use underground waste pipes when installing spot foundations. When installing spot foundations, we recommend the following approach:

982000-AIR-M2-M4-EN03.1 | www.ochsner.com 15

INSTALLATION | Preparing to install the appliance

9.3.2 Laying strip foundations

150

200

1 Pipe liner for the connecting lines (where installed

underground) 2 Gravel bed 3 Drainage pipe (frostproof) 4 Strip foundations

AIR 7 1400 300 ≥ Ø160 AIR 11 1400 300 ≥ Ø160 AIR 18 1400 300 ≥ Ø160 AIR 23 2250 320 ≥ Ø200 AIR 29 2250 320 ≥ Ø200 AIR 41 2250 350 ≥ Ø250

When laying strip foundations we recommend the following approach:

1100

A B C

≥ 1600

1 Reinforced strip foundation 2 Pipe liner for underground connecting lines 3 Drainage pipe (frostproof) 4 Gravel bed

In the case of underground connecting lines, allow for

the pipe liner.

Fill the foundation trench with coarse gravel. If the

pipe liner (with refrigerant lines) is to be installed at a later point, in the case of underground connection lines, this must be allowed for in the foundation

11_04_200_504_002

trench.

Construct the two reinforced strip foundations.

9.3.3 Installing on at roofs

WARNING: Risk of falling

Working on a at roof without fall protection constitutes a risk.

When working on a at roof, observe the laws

relating to occupational safety in your region. Always be aware of the open edge.

Information

Avoid installing the outdoor unit on the roof above residential buildings or on car ports attached to residential buildings, due to the risk of structure-borne noise transmission.

Loads and stresses on roof structure

≥ 300

11_04_200_504_006

Note that when outside temperatures are very low,

ice can form beneath the outdoor unit.

≥ 800

11_04_200_504_005

Dig out the foundation trench.

Place a drainage pipe along the base of the trench.

16 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

In terms of roof structure loads, allow for an ice load

of 400 kg/m² in addition to the dead weight of the

outdoor unit.

INSTALL ATION | Preparing to install the appliance

1 Flat roof

2 Refrigerant lines in open air (enclosed in thermal in-

sulation with UV protection)

3 2x concrete slabs attached with exible adhesive (per

leg of the outdoor unit). The outdoor unit is afxed to

the concrete slabs

4 Anti-vibration mounts

When installing the outdoor unit on a freestanding car port,

a garage roof or a storage space roof, please note the

following:

Ensure that the outdoor unit is adequately secured,

paying regard to the wind load occurring at the installation location.

Take account of the concentrated load arising from

the dead weight of the outdoor unit (including the

roof xings) and the surface load caused by possible

build-up of ice.

Ensure suitable structure-borne sound separation be-

tween the outdoor unit and the installation points on the roof.

9.4 Preparing the refrigerant lines

Information

If the appliance, the refrigerant lines, the pipe xings and the wall outlets are not installed correctly, structure-borne sounds can be transmitted to the building.

Ensure that the refrigerant lines are in-

11_06_200_202_006

stalled in a way that ensures insulation from structure-borne noise. The system installer carrying out the work is responsible for this.

Material damage

Use only copper pipes suitable for refrigerant (D IN 12735-1). Thin-walled pipes run the risk of bursting.

Please observe the stipulated diameters and

wall thicknesses of the copper pipes.

Material damage

Incorrect or premature opening of the pipe connections and cutting of the refrigerant lines can allow dirt and moisture to enter the refrigerant circuit.

Do not open the connections on the indoor

or outdoor units until just before installing the refrigerant lines. Cut the refrigerant lines with a suitable pipe

cutte r. Prevent swarf from contaminating the pipe

connections and refrigerant lines. Once cut, ll the refrigerant lines with a sub-

stance such as nitrogen. Keep the refrigerant lines closed until just be-

fore installation.

Pipe connections for the refrigerant lines (suction gas and liquid lines) are supplied soldered closed, both for the indoor unit and the outdoor unit. Appropriate copper pipes for refrigerant lines are supplied sealed at both ends and

lled with nitrogen.

Please note the following with regard to routing of the refrigerant lines:

Keep to a minimum the distance between the indoor

and outdoor units, in order to minimise heat loss from the refrigerant lines.

Select the installation sites for the indoor and outdoor

units such that the maximum permissible line lengths and height differentials are not exceeded.

Avoid routing the lines in the vicinity of bedrooms.

The refrigerant in the lines can generate noise under certain operational conditions.

982000-AIR-M2-M4-EN03.1 | www.ochsner.com 17

INSTALLATION | Preparing to install the appliance

9.4.1 Line lengths

Observe the maximum permissible line lengths for

the refrigerant lines.

Where the outdoor unit is positioned higher than the

indoor unit, observe the maximum permissible height

differential between the two units.

Where a line routed along the ceiling is used in

conjunction with an underground connection line, observe the maximum permissible height differential between the highest and lowest points of the refrigerant lines.

1223

11_06_200_202_001

≤ 3500

11_06_200_202_002

A + B + C

(sum of line lengths) AIR 7 ≤ 20 m ≤ 10 m AIR 11 ≤ 20 m ≤ 10 m

AIR 18 ≤ 20 m ≤ 10 m AIR 23 ≤ 20 m ≤ 10 m AIR 29 ≤ 20 m ≤ 10 m AIR 41 ≤ 16 m ≤ 5 m

Where the outdoor unit is positioned lower than the

indoor unit, observe the maximum permissible height differential between the highest and lowest points of the refrigerant lines.

1180

(max. height differential)

≤ 3500

9.4.2 Pipe diameter

The pipe diameter data for refrigerant lines shown below applies as long as the following are observed:

► A maximum of eight 90° pipe bends

► With pipe diameters of < 35 mm, use a suitable pipe

bending tool to create the pipe bends

► With pipe diameters of ≥ 35 mm, use type 5002 pipe

bends

► Bending radii of ≥ 1 m are treated as straight runs

Information

Refrigerant lines with a pipe diameter of ≥ 35 mm

are created from rigid copper pipes in 5 m lengths.

With underground refrigerant lines, provide an

assembly shaft at connection sites to facilitate soldering and maintenance work.

≤ 2970

18 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

650

11_06_200_202_003

INSTALL ATION | Preparing to install the appliance

Pipe diameter of the refrigerant line

Refrigerant line up to 6 m Refrigerant line up to 8 m

Liquid line Suction gas

line AIR 7 10 18 10 18 AIR 11 12 18 12 18 AIR 18 12 22 12 22 AIR 23 12 22 16 2x22 AIR 29 16 2x22 16 2x22 AIR 41 16 42 16 42 AIR 41 16 4x22 16 4x22

Pipe diameter of the refrigerant line

Refrigerant line up to 10 m

Liquid line Suction gas

line AIR 7 10 18 10 18 AIR 11 12 22 12 22 AIR 18 12 22 12 2 x18 AIR 23 16 2x22 16 2x22 AIR 29 16 2x22 16 2x22 AIR 41 16 42 16 42 AIR 41 16 4x22 16 4x22

Pipe diameter of the refrigerant line

Refrigerant line up to 14 m

Liquid line Suction gas

line AIR 7 10 18 10 18 AIR 11 12 22 12 22 AIR 18 12 2 x18 12 2x22 AIR 23 16 2x22 16 2x22 AIR 29 16 2x22 16 35 AIR 29 16 2x22 16 3x22 AIR 41 16 42 16 42 AIR 41 16 4x22 16 4x22

Liquid line Suction gas

line

Refrigerant line up to 12 m

Liquid line Suction gas

line

Refrigerant line up to 16 m

Liquid line Suction gas

line

9.4.3 Preparing the wall outlets

Whether the refrigerant lines between the indoor and outdoor units are to be routed above or below ground, ap-

propriate and plant-specic wall outlets need to be created

through the outer wall of the building.

Ensure that the wall outlets are constructed in an ap-

propriate, plant-specic manner.

Take the construction of the wall (tiles, concrete) into

account.

Take the prevailing groundwater situation into

account.

Material damage

Incorrectly created wall outlets can cause signicant damage to property, due to water (seepage, condensation, floodwater) penetrating into the building or stonework. Where the wall outlets are created below ground level, the breach must be appropriate to local conditions at the site (e.g. non-accumulating or accumulating seepage water, groundwater under pressure).

Use a suitable pipe liner or wall sleeve for the

wall outlet. Tie the external end of the wall outlet in to the

external waterproof seal of the building. Ensure that the pipe liner is arranged with a

slight fall (at least 2%) to the outside. On both the outside and inside edge of the

wall, use appropriate ring seals to seal the space between the wall sleeve and the refrigerant lines and electrical cables passing through.

Material damage

PU foam is not suitable as a sealant for the pipe li ner.

Pipe diameter of the refrigerant line

Refrigerant line up to 18 m

Liquid line Suction gas

line AIR 7 10 18 10 18 AIR 11 12 22 12 22 AIR 18 12 2x22 12 2x22 AIR 23 16 2x22 16 2x22 AIR 29 16 35 16 35 AIR 29 16 3x22 16 3x22

982000-AIR-M2-M4-EN03.1 | www.ochsner.com 19

Refrigerant line up to 20 m

Liquid line Suction gas

line

INSTALLATION | Preparing to install the appliance

9.4.4 Preparing refrigerant lines passing through open air

1 Appropriately sealed wall outlet (particularly where

there is a risk of ooding)

2 Appropriate sealing of the refrigerant lines as they

pass through the wall outlet

3 Refrigerant lines in open air (enclosed in thermal in-

sulation with UV protection) 4 Reinforced strip foundation 5 Drainage pipe (frostproof) 6 Foundation

Information

All solder sites on the copper pipework of the refrigerant line must be accessible all year round for maintenance purposes (in accordance with Regulation (EU) no. 517/2014).

Run the refrigerant lines between the indoor and out-

door units.

9.4.5 Preparing underground refrigerant lines

11_06_200_202_005

1 Appropriately sealed wall outlet 2 Appropriate sealing of the refrigerant lines as they

pass through the pipe liner 3 Insulation 4 Gravel 5 Reinforced strip foundation 6 Appropriate sealing at the end of the pipe liner (be-

tween refrigerant lines and pipe liner) 7 Drainage pipe (frostproof) 8 Pipe liner (with min. 2% fall to outside) 9 Drain 10 Foundation

Information

All solder sites on the copper pipework of the refrigerant line must be accessible all year round for maintenance purposes (in accordance with Regulation (EU) no. 517/2014).

~ 600

11_06_200_202_004

Allow some surplus length in the refrigerant lines

between the connections at the indoor and outdoor units.

Ensure that the wall outlets are sealed in an appropri-

ate, plant-specic manner.

Use suitable sound-insulating pipe xings to secure

the refrigerant lines.

Insulate the refrigerant lines with suitable insulating

material where they pass through open air between the indoor and outdoor units, to prevent formation of condensation. When passing through open air outside, the insulating material must also have UV protection.

Information

Where the refrigerant lines run horizontally through open air, use suitable supports. Take steps to prevent open refrigerant lines from being walked or driven on.

Information

- If the pipe liner is laid empty, inserting the re-

frigerant lines afterwards will be difcult if not

impossible.

20 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

INSTALL ATION | Preparing to install the appliance

Ensure that the wall outlets are appropriate and

plant-specic, and that the pipe liner is appropriately

sealed.

Ensure that the open end of the pipe liner at the

outdoor unit is properly sealed. For sealing the refrigerant lines in the pipe liner, use for example an appropriate ring seal or a UV-resistant, permanently

exible sealing compound.

Any exposed refrigerant lines outside the pipe liner

must also be protected from a build-up of condensation with appropriate insulating material. Out of doors, the insulating material must also have UV protection.

Information

Insulation used beneath the soil must be made of a closed-cell material. Otherwise, the thermal insulation of the material will be impaired.

1 Where the pipe liner has two 90° bends, it must be

laid together with the refrigerant lines.

2 If the pipe liner is laid empty, it will not be possible to

insert the refrigerant lines afterwards.

For the underground pipe liner, use rigid waste pipes.

Use a pipe liner of a suitable diameter for the sys-

tem-specic refrigerant lines and the planned pipe

bends (see „Foundations for the outdoor unit“ on page 14).

For 90° bends in the pipes, use either 3x 30° bends

or 6x 15° bends (depending on the diameter of the pipe liner and the depth at which it is laid).

At the point where the refrigerant lines are connected

to the outdoor unit, create a suitable trench.

11_06_200_202_007

Material damage

PU foam is not suitable as a sealant for the pipe li ner.

Dig a straight trench between the wall outlet and the

trench at the outdoor unit.

Lay the pipe liner, with the refrigerant lines already

inserted, into the trench between the outdoor and indoor units.

Lay the electrical control leads and power supply

cables in a suitable electrical conduit. The optional OCHSNER cable harness is suitable for laying direct into the ground.

Allow some surplus length in the refrigerant lines

between the connections at the indoor and outdoor units.

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INSTALLATION | Preparing to install the appliance

9.5 Preparing the electrical connections

WARNING: Electrocution

All electrical connection and installation work must be carried out according to the applicable national and regional regulations.

WARNING: Electrocution

Before commencing work on electrical connections and installation, the heat pump system must be isolated and voltage-free.

WARNING: Electrocution

Work on electrical connections and installation may

be conducted only by qualied contractors.

Material damage

This appliance contains frequency converters (e.g. EC circulation pumps, EC fan motors). Leakage currents may arise in normal operation. In the event of faults, these components may cause DC fault currents. An incorrectly selected RCD may trip during normal operation or, in the event of a fault, may not trip at all or only trip after a delay.

Make sure that the power supply for this

appliance is separate from the domestic installation. If local conditions require the installation of an

RCD, use type B AC/DC-sensitive RCDs.

► For the integral electric booster heater (8.8 kW), a

suitable high limit safety cut-out (HLSC) is installed in

the indoor unit.

Information

The main power circuit for the compressor has no upstream power contactor on the machine side. Control devices and equipment to disconnect and shut down all supply voltages across all poles, which must be provided on the system side, must meet the technical safety requirements of EN 60204-1 sections 5 and 13.4.5, as well as the international regulations in the IEC 60947 series.

Material damage

Protect the main power circuit (compressor), the control circuit (control unit) and the electric booster heater separately from one another.

9.5.1 Heat pumps for three-phase alternating current

3 4 5 6

C13A B16A

Information

It is essential that the regulations of the responsible power supply utility (PSU) and the applicable EN standards be observed.

Information

The values specied in this documentation for

circuit protectors and cable cross-sections are standard values. The contractor carrying out the work is responsible for plant-specic sizing of safety equipment and cable cross-sections.

► For the electrical connection, use the system principle

schematic appropriate to your heat pump system from section „System schematic diagrams“ on page 68.

► The outdoor unit takes its power supply from the in-

door unit. The supply cable for the fan in the outdoor unit is protected by an internal C10A circuit breaker in the indoor unit.

► In the case of a fault, the protection on the main pow-

er circuit (compressor) and electric booster heater must break the circuit across all poles.

3 x 400 VAC 1 x 230 VAC 3 x 400 VAC

1 Heat pump indoor unit control box 2 Main system distributor board 3 Supply to main power circuit (compressor) 4 PSU signal contact 5 Supply to control circuit (OTE controller) 6 Supply to electric booster heater

Description Typ e Max.

Main power circuit (compressor and fan)

Electric booster heater

Control circuit (control unit)

AIR 7 C11A 13.5 5.4 C10A AIR 11 C 11A 20.0 7.9 C10A AIR 18 C11A 32.0 11. 4 C16A

AIR 23 C12A 50.5 16.8 C20A AIR 29 C12A 49.5 21.1 C25A AIR 41 C12A 63.5 24.8 C25A

AIR 7 C11A

–

AIR 41 C12A

AIR 7 C11A

–

AIR 41 C12A

starting current [A]

Max. operating current [A]

– 14 B16A

– 6 C13A

11_02_200_202_01_010

Fuse

► All power supply cables must be protected against

surges and short circuits.

22 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

INSTALL ATION | Preparing to install the appliance

Material damage

Operating a three-phase motor (compressor, pumps, fans) for long periods using an incorrectly phased three-phase supply will damage the motor.

Ensure that all three-phase motors are

connected to a three-phase supply with a clockwise rotating eld.

9.5.2 Heat pumps for single phase alternating current

3 4 5 6

C13A B16A

1 x 230 VAC 1 x 230 VAC 3 x 230 VAC

Description Typ e Max.

Main power circuit (compressor and fan) Electric booster heater

Control circuit (control unit)

AIR 11 C 11B 48.5 20.8 C25A

AIR 18 C11B 80.0 30.0 C40A

AIR 11 C 11B – 12.8 B16A AIR 18 C11B AIR 11 C 11B – 6 C13A AIR 18 C11B

starting current [A]

Max. operating current [A]

Fuse

9.5.3 Cables from main distributor to indoor unit

Description Wires Min. cable

Supply to electric booster heater

(8.8 kW electric immersion heater)

Control circuit supply 1x 2 30 VAC

Supply to pumps and servomotors Sensor leads (system temperature sensors) Bus leads (eBus connections from OTE controller to remote controllers or auxiliary modules and in cascades)

3x 400 VAC (L1/L2/L3/N/PE) or 3x 230 VAC (L/L/L/N/PE)

(L/N/PE) 1x 23 0 VAC (L/N/PE) 2x (shielding recommended) Example: Y(ST)Y 2x2x0.8 (shielded cable design and twisted cable pairs)

9.5.4 Cables from indoor to outdoor unit

Description Wires Min. cable

11_02_200_202_01_024

Fan power supply 1x 23 0 VAC

Fan alarm (TK) 2x 230 VAC 1.5 mm² Fan speed (0-10 VDC)

Defrost sensor (TQE, TQA) 4x

Pulse lead (for stepper motor on electronic expansion valve)

Suction gas sensor S2

(for expansion valve controller)

(L/N/PE)

2x (shielding recommended)

(shielding recommended) 4x (shielding recommended)

Example: ÖLFLEX® CLASSIC 100 CY

2x (shielding recommended)

9.5.5 Temperature sensor

cross-section

2.5 mm²

1.5 mm²

1.0 mm²

0.8 mm²

cross-section

1.5 mm²

1 mm²

0.8 mm²

1 mm²

Information

The maximum line length for sensor leads is 50 m.

Information

Sensor leads must be routed separately from 230 V and 400 V cables. If a minimum distance of 20 cm cannot be maintained, then shielded cables should be used. The shielding should be connected to the earth rail of the heat pump.

Defrost sensors (TQA, TQE):

The two defrost sensors are factory-installed in the evaporator on the outdoor unit.

982000-AIR-M2-M4-EN03.1 | www.ochsner.com 23

INSTALLATION | Preparing to install the appliance

Outdoor temperature sensor (TA):

nected directly to the OTE controller (1x 230 VAC power supply).

Fit the outdoor temperature sensor at a height of ap-

prox. 2.5 m to the outside wall of the building (on the north-west side). Make sure that the outdoor temperature sensor is not exposed to direct sunlight or wind, as this will impair the control characteristics.

Information

Avoid tting the outside temperature sensor to the casing of the outdoor unit or in the air ow from

the outdoor unit.

Buffer sensor (TPO, TPM):

In heat pump buffer tank, two buffer sensors are required. The heat pump is switched on on the basis of readings from the TPO and switched off on the basis of those from the TPM.

Install a sensor pocket in the female socket provided

for the upper buffer sensor (TPO)

Install a sensor pocket in the female socket provided

for the lower buffer sensor (TPM)

DHW sensor (TB):

Material damage

A test run of the pumps and servomotors may be conducted only on a system that has been prepared for commissioning. The hydraulics must be fully connected.

9.5.7 PSU signal contact

Tariff switching on the heat pump system

In the case of tariff switching (with interrupted power delivery), the heat pump is temporarily shut down by the power supply utility (PSU).

Uninterrupted tariff

In the case of tariff switching with uninterrupted power delivery, the heat pump is temporarily shut down by the power supply utility. A PSU signal contact is provided for this purpose on the indoor unit. To activate the function, remove a cable bridge in the control box and connect the PSU signal contact cable (see „Electrical connection of the indoor unit“ on page 34).

OCHSNER DHW cylinders are tted with appropriate female sockets for installing the sensor.

Install the DHW sensor in the top one-third of the

DHW cylinder (or at the very least in the top half). The lower the selected position of the DHW sensor, the larger the switching hysteresis (5-15 K) will need to be.

Information

Ensure that the DHW sensor is correctly positioned and extends beyond the cylinder insulation into the interior of the DHW cylinder. This is the only way in which the temperature can be captured correctly.

Mixer sensor (TMK):

If, in addition to a direct heating circuit, your system also has a heating circuit with mixing valve, then a mixer sensor must be installed. The mixer sensor is supplied with the heat pump, as a contact sensor including band clamp and heat conducting paste.

Install the mixer sensor immediately downstream

of heating circuit circulation pump 2 for the heating circuit with mixing valve, on a (metal) pipe made of a good heat-conducting material.

Shutdown by means of a tariff contactor

In the case of shutdown by means of a tariff contactor installed on behalf of the customer (sealed by the PSU), the power supply to the heat pump compressor is disconnected. Here, it is essential to connect an auxiliary contact to the tariff contactor (N/C contact) of the PSU signal contact on the indoor unit.

Night tariff

Where tariff switching takes place within the meter (night tariff), the PSU signal contact is not connected.

9.5.8 Smart Grid

For the Smart Grid function, special descriptions are available on request from your OCHSNER Customer Service department.

9.5.6 Pumps and servomotors (230 VAC)

Pumps (heating circuit pumps, DHW charging pump) and servomotors (switching module, mixing valve) are con-

24 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

INSTALL ATION | Appliance installation

11_02_200_214_01_005

11_02_200_214_01_001

10. Appliance installation

10.1 Installation of indoor unit

10 .1.1 Delivery and transportation

The appliance is delivered on a one-way pallet, wrapped in lm. The appliance casing is assembled on delivery.

Information

Should you notice any transportation damage to the appliance, you must report such damaged immediately when the delivery is unloaded. Claims for transportation damage cannot be made subsequently.

Material damage

Protect the appliance from damage by using

transport belts. When transporting, protect the appliance from

impact.

► The appliance is secured to the one-way (recyclable)

pallet of the transport packaging with screws.

► The transport packaging or one-way pallet is suitable

for transportation using a forklift truck.

► For level transportation to the installation location, the

appliance may remain in the transport packaging.

► Leave the appliance in the transport packaging or on

the one-way pallet for lifting and moving by crane or forklift.

► The standard packaging of the appliance does not

provide protection against the weather or sea water.

► The appliance may be stored and transported only at

temperatures of between -20°C and +45°C.

► The appliance must be stored in its transport

packaging.

Information

If the route to the installation location is difcult,

the transport packaging should be removed and the appliance casing disassembled.

Please note the following when removing the transport packaging:

Remove the transport packaging.

Undo and remove the eight woodscrews on the two

transport xing brackets (left and right) securing the

appliance to the one-way pallet.

Use the pre-installed transport aids (2 lifting slings at

the front and 2 lifting handles at the rear) to lift and transport the appliance.

Transport the appliance in an upright position. Over

short distances, you may transport the appliance carefully at an angle of up to 30°.

Material damage

Note the following points when carrying the appliance with the pre-installed transport aids:

- When lifting and carrying the appliance, make sure that all 4 transport aids are pulled evenly and at the same time.

- Ensure that the appliance casing is not damaged during transport.

- The transport aids are not suitable for lifting by crane.

982000-AIR-M2-M4-EN03.1 | www.ochsner.com 25

INSTALLATION | Appliance installation

Material damage

When being transported with the appliance casing disassembled, sensitive components will be exposed.

Take care transporting the appliance.

10 .1.2 Positioning the appliance

After the appliance has been placed in position,

remove the two lifting slings at the front of the appliance.

Undo and remove the two mounting bolts and remove

the two lifting slings.

Then screw the two mounting bolts back into the ap-

pliance frame.

10 .1.3 Disassembling the appliance casing

11_02_200_214_01_002

Position the appliance at the intended installation

location.

Use the pre-installed transport aids (2 lifting slings at

the front and 2 lifting handles at the rear) to slide and tilt the appliance.

Observe minimum clearances.

Ensure the appliance is horizontal. To compen-

sate for minor unevenness in the oor, use the four

height-adjusting plastic glides on the underside of the appliance.

Information

On the underside of the indoor unit, there are four plastic glides with rubber mounted threaded pins (without nuts). Discrepancies in oor height of up to 6 mm can be compensated for.

2 3

Undo and remove the four knurled screws for the ap-

pliance casing panel at the rear of the appliance.

Undo and remove the two xing screws for the control

box cover, on the rear of the appliance.

11_02_200_214_01_006

Slide back the control box cover. Lift the control box

cover up and away.

11_02_200_214_01_003

1 Lifting sling 2 Mounting bolt 3 Appliance frame

26 www.ochsner.com | 982000-AIR-M2-M4-EN03.1

11_02_200_214_01_007

INSTALL ATION | Appliance installation

11_02_200_214_01_012

Undo and remove the two xing screws for the left-

hand appliance casing panel, inside the control box.

Lift the left-hand appliance casing panel up and away.

Material damage

When the appliance casing has been disassembled, sensitive components are fully exposed.

Assemble the appliance casing as soon as

there is nothing that needs doing inside the appliance. During the building phase, provide the appli-

ance with additional protection from dirt and dust with a suitable covering.

10 .1.4 Assembling the appliance casing

11_02_200_214_01_008

Undo and remove the three xing screws for the front

appliance panel, inside the control box.

Lift the front appliance casing panel up and away.

Undo and remove the two xing screws for the right-

hand appliance casing panel, inside the control box.

Lift the right-hand appliance casing panel up and

away.

11_02_200_214_01_009

Slide the left-hand and front appliance casing panels

down from the top along the frame of the appliance, until the panels click into place at the bottom.

Ensure that both panels are fully engaged at the ve

positions along the bottom.

Secure both of these appliance casing panels with

screws at the xing points provided, inside the control

box.

11_02_200_214_01_010

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INSTALLATION | Appliance installation

Slide the right-hand appliance casing panel down

from the top along the frame of the appliance, until the panel clicks into place at the bottom.

10.2 Installing the outdoor unit

10 . 2 .1 Delivery and transportation

The appliance is delivered on a one-way pallet, wrapped in lm. The appliance casing is assembled on delivery.

Information

Should you notice any transportation damage to the appliance, you must report such damaged immediately when the delivery is unloaded. Claims for transportation damage cannot be made subsequently.

Material damage

Protect the appliance from damage by using

transport belts. When transporting, protect the appliance from

impact.

11_02_200_214_01_011

► The appliance is secured to the one-way (recyclable)

pallet of the transport packaging with screws.

► The transport packaging or one-way pallet is suitable

for transportation using a forklift truck.

Ensure that the panel is fully engaged at the three

points along the bottom.

Secure the appliance casing with screws at the xing

points provided, inside the control box.

Secure the appliance casing with screws at the rear

of the indoor unit.

► For level transportation to the installation location, the

appliance may remain in the transport packaging.

► Leave the appliance in the transport packaging or on

the one-way pallet for lifting and moving by crane or forklift.

► The standard packaging of the appliance does not

provide protection against the weather or sea water.

► The appliance may be stored and transported only at

temperatures of between -20°C and +45°C.

► The appliance must be stored in its transport

packaging.

Please note the following when removing the transport packaging:

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Remove the transport packaging.

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INSTALL ATION | Appliance installation

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Undo and remove the four woodscrews securing the

appliance to the one-way pallet.

10.2.2 Positioning the appliance

Position the appliance on the prepared foundations.

Secure the four legs of the outdoor unit on the foun-

dations, using four xing screws.

10.2.3 Disassembling the appliance casing

By removing the side casing panels on the outdoor unit, you can gain access to the connection points for the refrigerant lines and to the terminal boxes for the electrical control leads and power supply cables.

Undo and remove the two xing screws on the

underside.

Pull the side appliance casing panel down and away.

1 Round stainless steel plate 2 Mounting foot with threaded pin (4 pce, M5)

Attach the four mounting feet of the snow cover to the

outdoor unit, by screwing the threaded pins into the four free screw holes in the ring-shaped casing part.

Attach the round stainless steel plate of the snow

cover to the four positioning feet (M5x12 mm, stainless steel).

10.2.4 Installing the snow cover

The snow cover for an outdoor unit fan can be retrotted.

10.2.5 Fitting the cylindrical silencer

Information

The Super Silent Paket (SSP) exclusively available ex works for a VHS-M outdoor unit reduces noise by up to 3 dB. The Super Silent Paket consists of:

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The cylindrical silencer from the super silent package (SSP) can be retrotted. A retrotted cylindrical silencer alone will reduce noise by about 1.5 dB.

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- One cylindrical silencer per fan

- Reinforced casing insulation

- Shielded refrigeration technology

Undo and remove four of the eight xing screws on

the ring-shaped casing part for the fan (M5x12 mm, stainless steel).

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INSTALLATION | Appliance installation

10.2.6 Installing the SSP snow cover

The SSP snow cover can be retrotted to an existing cy- lindrical silencer on the outdoor unit.

Secure the four mounting feet to the round stainless

steel plate with screws (M5x12, 8 pcs).

Screw the safety bolt (M6x12, 1 pce) for the sound

absorbing mat into the centre of the stainless steel plate.

1 Casing section for the fan

Undo and remove the eight xing screws (M5x12 mm,

stainless steel) on the ring-shaped casing part of the fan.

Remove the ring-shaped casing part.

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1 Round stainless steel plate with attached sound ab-

sorbing mat 2 Mounting foot with threaded rivet (4 pcs) 3 Safety bolt (M6x12, 1 pce) with washer and retaining

nut 4 Fixing screw (M5x12, 8 pcs) with plastic washer

Position the SSP snow cover on the upper edge of

the cylindrical silencer.

Ensure that the SSP snow cover is correctly aligned.

The cylindrical silencer has just one predrilled screw

hole for each mounting foot.

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First, secure the four mounting feet of the SSP

snow cover to the cylindrical silencer, using the four

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1 Cylindrical silencer

Position the cylindrical silencer over the fan. Ensure

that the assembly holes are correctly aligned.

Attach the cylindrical silencer to the casing panel of

the outdoor unit, using the eight xing screws (M5x12, stainless steel).

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pre-drilled holes. Use self-tapping xing screws

(4.8x19 mm, stainless steel).

Secure the SSP snow cover through the remaining

four screw holes in the mounting feet that do not have

pre-drilled receiving holes. Use self-tapping xing

screws (4.8x19 mm, stainless steel).

+ 70 hidden pages

Ochsner AIR 7, AIR 41, AIR 11, AIR 18, AIR 23 Operating And Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PLEASE NOTE

OPERATION

1. Information on documentation

1.1 Safety information

1.1.1 Arrangement of safety information

1.1.2 Symbols and possible dangers

1.1.3 Keywords

1.2 Other symbols

1.3 Units of measurement

2. Safety

2.1 Intended use

2.2 General safety information

3. Appliance description

3.1 Functionality

3.2 Appliance components

3.3 Name plate

4. Activating settings

4.1 Operating costs

4.1.1 Flow temperatures

5. Maintenance and care

6. Problem solving

INSTALL ATION

7. Safety

7.1 General safety information

7. 2 Regulations, codes and standards

8. Appliance description

8.1 Standard delivery

8.2 Hydraulic variants of the indoor unit

9. Preparing to install the appliance

9.1 Indoor unit installation location

9.1.1 Keep minimum clearances

9.2 Outdoor unit installation location

9.3 Foundations for the outdoor unit

9.4 Preparing the refrigerant lines

9.5 Preparing the electrical connections