Immergas AUDAX PRO 4 V2 Product manual

AUDAX PRO
4 - 6 - 9 V2
Outdoor
Condensing
Unit
IE
Instructions and warnings
Installer and
Maintenance technician
*1.044631ENG*
*1.044631ENG*

2
INDEX
Dear Customer,................................................................................. 3
General warnings ............................................................................. 4
Safety symbols used.......................................................................... 6
Personal protective equipment....................................................... 6
1 Product specications. ....................................................... 7
1.1 Product range....................................................................... 7
1.2 Accessories............................................................................ 7
2 Outdoor unit specications. .............................................. 8
3 Main components. .............................................................. 9
4 Installation of the unit....................................................... 10
4.1 Outdoor unit installation position. ................................. 10
4.2 Installation guide near the sea. ........................................ 10
4.3 Preparation of re extinguisher. ...................................... 12
4.4 Free ignition sources. ........................................................ 12
4.5 Ventilation of the area....................................................... 12
4.6 Leak detection methods.................................................... 12
4.7 Labelling.............................................................................. 12
4.8 Recovery.............................................................................. 13
4.9 Installation place requirements........................................ 13
4.10 Moving the outdoor unit with wire ropes. ..................... 13
4.11 Clearance requirements for the outdoor unit................ 14
4.12 Installing the outdoor unit. .............................................. 16
4.13 Mount of outdoor unit...................................................... 16
4.14 Drain.................................................................................... 17
4.15 Positioning the unit in a rigid climate.............................19
5 Electrical connections....................................................... 20
5.1 General conguration of the system............................... 20
6 Connection of the cable.................................................... 21
6.1 Power cable specications. ............................................... 21
6.2 Specications of connecting cables. ............................... 21
6.3 Specications of single phase terminal block. ............... 21
6.4 Power cable connection diagram..................................... 22
6.5 Connection of power terminal......................................... 24
6.6 Installation of earthing wire............................................. 24
6.7 How to connect extension cables..................................... 25
7 Checking correct earthing................................................ 27
8 Installation of chiller lines. ............................................... 28
8.1 Allowed length of the refrigerant pipe and
installation examples......................................................... 28
8.2 Selection of refrigerant pipe. ............................................ 29
8.3 Keep the refrigerant pipe clean and dry.......................... 29
8.4 Cutting and anging of pipes........................................... 30
8.5 Choose the insulation of the refrigerant pipe. ............... 32
8.6 Insulating the refrigerant pipe. ........................................ 32
8.7 Braze welding the pipe...................................................... 32
8.8 Testing for refrigerant gas leaks. ...................................... 33
8.9 Creating vacuum................................................................ 34
8.10 Select the additional refrigerant charge.......................... 35
8.11 Recharging the refrigerant................................................ 35
8.12 Adding refrigerant............................................................. 37
8.13 Closing the valve stem....................................................... 38
8.14 Opening the valve stem.....................................................38
9 Cooling cycle diagrams..................................................... 39
9.1 Audax Pro 4-6 V2 diagram............................................... 39
9.2 Audax Pro 9 V2 diagram. ................................................. 39
10 Wiring diagrams................................................................ 40
10.1 Audax Pro 4-6 V2 wiring diagram. ................................. 40
10.2 Audax Pro 9 V2 wiring diagram...................................... 41
11 Microswitch and key function settings. ......................... 42
11.1 Audax Pro 4-6 V2 testing operations.............................. 42
11.2 Audax Pro 9 V2 testing operations.................................. 44
12 “Pump down” execution. .................................................. 47
12.1 Purpose of “Pump down”.................................................. 47
12.2 Important warnings for “Pump down” execution......... 47
12.3 Collect the refrigerant in a specic vessel before
“Pump down”...................................................................... 48
13 Completion of installation................................................ 49
14 Final inspections and test operation. .............................. 50
14.1 Inspection prior to test operation.................................... 50
14.2 Test operation..................................................................... 50

3
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its
technical and commercial documents without forewarning.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manu-
facturing and aer-sales assistance processes comply with the requirements of standard UNI EN ISO 9001:2015.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the
appliance model and the language of the country.
Dear Customer,
Congratulations for having chosen a top-quality Immergas product, able to assure well-being and safety for a long period of time. As an
Immergas Customer, you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your
heat pump. Read the following pages carefully: you will be able to draw useful tips on the proper use of the device, compliance with which
will conrm your satisfaction with the Immergas product.
For assistance and routine maintenance, contact Authorised Service Centres: they have original spare parts and are specically trained
directly by the manufacturer.
Correct disposal of the product
(Waste electrical and electronic equipment)(Applicable in Countries with separate waste collection systems)
When this symbol is applied on the product, on the accessories or on its documentation, it means that the product and relative
electronic accessories must not be disposed of with other waste at the end of its life cycle. To avoid damaging the environment or
health due to incorrect waste disposal, the user is recommended to separate the product and the above-mentioned accessories from
other types of waste and to recycle them responsibly by sending them to authorised facilities in compliance with local standards.
Household users are encouraged to contact the dealer where they purchased the product or the competent authorities to receive
all of the information regarding the separate waste collection of these products so that they may be disposed of properly without
harming the environment.
Corporate users should contact their supplier and verify the terms and conditions of the purchase contract. is product and
relative electronic accessories must not be disposed of together with other commercial waste.

4
GENERAL WARNINGS
• Carefully follow the precautions listed below as they are crucial to guarantee the safety of the product.
ATTENTION:
- always disconnect power to the condensing unit before performing maintenance on it or
accessing the components inside the unit.
- Make sure that installation and inspection operations are carried out by qualied personnel.
- ey must comply with the precautions and other important warnings to avoid seriously dam-
aging the system and injuring the users.
•Carefully read the content of this manual before installing the condensing unit and keep it in a safe place so that it can be referred
to aer installation.
•For greater safety, the installers should always read the following warnings with the utmost attention.
•Store the use and maintenance manual in a safe place and remember to hand it over to the new owner should the condensing unit
be sold or transferred.
•is manual explains how to install the condensing unit. Using other types of units with dierent control systems can damage the
units and invalidate the warranty. e manufacturer will not be held liable for damage resulting from improper use of the unit.
•e manufacturer cannot be held liable for damage resulting from unauthorised changes or improper connection of the electric and
hydraulic lines. Failure to comply with these instructions or with the requirements set forth in the “Operating limits” table, including
those in the manual, immediately invalidates the warranty.
•Failure to comply with the instructions indicated in the production specications immediately invalidates the warranty.
•Do not use the units if you notice any damage on them or if you perceive something strange, such as a loud noise or burnt smell.
•To prevent electrocution, re or injury, always switch o the unit, disable the protective switch and, if smoke escapes or if the unit is
extremely noisy, contact the Authorised Technical Service Centre.
•Remember to inspect the unit at regular intervals, including the electrical connections, the refrigerant pipes and the protections.
•ese operations must only be done by qualied personnel.
•e unit contains moving and electric parts which must always be kept out of the reach of children.
•Do not have unauthorised personnel attempt to repair, move, modify or reinstall the unit. ese operations could cause damage to
the product, electric shocks and re.
•Do not place liquid containers or other objects on the unit.
•All the materials used to manufacture and package the condensing unit are recyclable.
•e packaging material and the dead batteries of the remote control (optional) must be disposed of in compliance with local standards.
•e refrigerant in the condensing unit must be disposed of as special waste. At the end of its life, the condensing unit must be disposed
of in an Authorised Assistance Centre or returned to the shop so that it can be disposed of correctly and safely.
•Wear protective gloves to unpack, move, install and repair the unit so that its edges do not injure your hands.
•Do not touch the internal parts (water pipes, refrigerant pipes, heat exchanger, etc.) while the unit is operating. If it needs to be
adjusted, leave it as long as necessary to cool o and make sure to put on protective gloves.
•In case of refrigerant leaks, try not to come into contact with the refrigerant as this could cause serious injury.
•If the condensing unit is installed in a small room, consider adequate ventilation to avoid a leak level beyond the maximum allowed
limit. In that case, there is the risk of death by suocation.

5
•Make sure to dispose of the packaging materials safely. e packaging items, such as nails and other metals or wooden pallets can
cause injuries to children.
•Inspect the shipped product and make sure it was not damaged during transport. If you notice any damage, DO NOT INSTALL
THE PRODUCT and immediately report any damage to the carrier or dealer (if the installer or authorised technician withdrew the
material from the dealer).
•Our units must be installed according to the clearance spaces described in the installation manual so that both sides are accessible
and to allow for repairs and maintenance to be performed. If the units are installed without complying with the procedures described
in the manual, additional costs could be required since special wiring, ladders, scaolds or any other elevation system for repairs are
NOT considered covered by the warranty and are therefore charged to the end customer.
•Always make sure that the power supply complies with local safety standards.
•Check that the supply voltage and frequency comply with the specications and that there is sucient input power to guarantee
operation of any other household appliance connected to the same power lines. Always make sure that the on-o switches and circuit
breakers are selected appropriately.
•Always check that the electrical connections (cable inlet, wire cross-section, protections, etc.) comply with the electrical specications
and with the instructions in the wiring diagram. Always check that all of the connections comply with the regulations applicable to
installation of the heat pumps. e devices not connected to the power supply must be completely disconnected according to the
conditions envisaged by the overvoltage categories.
•Do not connect the earth wire to the gas piping, to the water piping, to the lightning rod, to the overvoltage absorber or to the tele-
phone cable. An electric shock or a re could occur if earthing is not complete.
•Make sure to install both the earth leakage detector and the circuit switch of the capacity specied in compliance with local and
national standards in force. If they are not installed properly, they can cause electric shocks and res.
•Make sure that condensate exits properly from the unit at low room temperature. Do not allow frost or ice to form on the drain pipe
or on the heater. If the drain is not done properly for release of condensate, the units could be damaged by ice blocks and the system
could be stopped, covered with ice.
•Install the power cable and the communication cable between the indoor and outdoor unit at least 1 m from the household appliance.
•Protect the appliance against mice or small animals. If an animal creates a contact with electric parts, it could cause malfunctioning,
smoke or res. Inform the customer to keep the area around the unit clean.
•Do not disassemble or modify the heater on your own initiative.
•is appliance is not intended to be used by persons (including children) with reduced physical, sensory or mental capabilities or
lacking experience and the necessary knowledge, unless they are supervised or trained on use of the appliance by someone in charge
of their safety. Children must be supervised to make sure they do not play with the appliance.
•For use in Europe: this appliance may be used by children at least 8 years old or by persons with reduced physical, sensory or mental
capabilities or lacking experience and basic notions, as long as they are supervised or properly trained on safe use of the appliance and
are aware of the risks posed by it. Do not allow children to play with the appliance. e appliance must not be cleaned and serviced
by children without the supervision of an adult.
•Make sure not to modify the power cable, to make extensions or connections with several wires.
•is could cause electrocutions or re due to connections or insulation made improperly or exceeding the current limit. If extensions
need to be made due to damage along the power line, see chapter “How to connect extension cables” in the installation manual.
•Do not use means to speed up the defrosting operation or to clean other than those recommended by Immergas.
•Do not puncture or burn.
•Be aware that refrigerants are odourless.