Immergas AUDAX PRO 5, AUDAX PRO 8, AUDAX PRO 10 Instruction And Recommendation Booklet
Instruction and
*1.039359ENG*
recommendation booklet
IE
AUDAX PRO
5 - 8 - 10
Dear Customer,
Our compliments 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 qualied aer-sales service, prepared and updated to guarantee constant eciency of your heat pump. Read the following pages
carefully: you will be able to draw useful suggestions regarding the correct use of the appliance. By respecting these suggestions, you will no doubt be satised
with your Immergas product.
For assistance and scheduled maintenance, contact Authorised Immergas Aer-Sales centres: they have original spare parts and are specically trained directly
by the manufacturer.
General recommendations
All Immergas products are protected with suitable transport packaging.
e material must be stored in dry environments protected from bad weather.
e instruction book is an integral and essential part of the product and must also be given to the new user in the case of transfer or succession of ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instruction manual provides technical information for installing the Immergas pack. As for the other issues related to pack installation (e.g. safety in the
work site, environment protection, injury prevention), it is necessary to comply with the provisions specied in the regulations in force and good practice rules.
In compliance with the legislation in force, the systems must be designed by qualied professionals, within the dimensional limits established by the Law.
Installation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer's instructions and by professionally
qualied sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law.
Improper installation or assembly of the Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems for people, animals
and objects. Read the instructions provided with the product carefully to ensure proper installation.
Maintenance must be carried out by skilled technical sta. e Immergas Authorised Aer-sales Service represents a guarantee of qualications and
professionalism.
e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially
dangerous.
If errors occur during installation, operation and maintenance, due to non-compliance with technical laws in force, standards or instructions contained in
this book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages and
the appliance warranty is invalidated.
For further information regarding legislative and statutory provisions relative to the installation of heat pumps, consult the Immergas site at the following
address: www.immergas.com
CE DECLARATION OF CONFORMITY
For the purpose and eects of the CE 2004/108 ''Electromagnetic Compatibility'' and CE 2006/95 Low Voltage Directives.
e Manufacturer: Immergas S.p.A. v. Cisa Ligure n° 95 42041 Brescello (RE)
DECLARES THAT: Immergas packs model:
Audax Pro 5 - 8 - 10
complies with the same European Community Directives
Signature:
Mauro Guareschi
Research & Development Director
Immergas S.p.A. declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial
documents without prior notice.
INDEX
1 Safety precautions ...............................................5
1.1 Hazard. ..........................................................5
2 Unit specications. .............................................6
2.1 Main dimensions..........................................6
2.2 Outdoor unit specications. ....................... 6
3 Unit installation. .................................................7
3.1 Selecting the installation position of the
outdoor unit. ........................................................7
3.2 Locations where the unit cannot be
installed. ...............................................................7
3.3 Minimum installation distances for
individual units. .................................................. 8
3.4 Minimum installation distances for more
than one unit. ......................................................8
3.5 Installing the outdoor unit. ...............................9
3.6 Outdoor unit mount structure. .................. 9
3.7 Drainage. .....................................................10
3.8 Installing the unit in harsh climates. .......11
4 Electrical connections. ..................................... 12
4.1 General connection conguration. ..........12
4.2 Power cable features. .................................12
4.3 Connection features between indoor and
outdoor units (commonly used). ....................12
4.4 Terminal board features. ........................... 13
4.5 Supply voltage cable connection. .............14
5 Installing the chiller lines. ................................15
5.1 Chiller line geometric limits and
installation examples. .......................................15
5.2 Pipe cutting and aring ............................. 16
5.3 Selecting chiller line insulation. ...............17
5.4 Insulating the chiller lines. ........................17
5.5 Welding the pipes. ...................................... 17
5.6 Using Nitrogen. ..........................................17
5.7 Pressure testing and leak check. ............... 18
5.8 Putting under drying vacuum. ................. 19
5.9 Topping up the coolant load. .................... 20
5.10 Adding coolant. ................................................. 20
5.11 Putting in the coolant. ...................................... 20
5.12 Important information on the coolant used .20
5.13 Topping up the load. .........................................21
5.14 Service valve ...................................................... 21
6 Checking the earthing connection ................. 22
7 Micro-switch setting and key function ..........23
7.1 Operating Test. ........................................... 23
7.2 Data display mode ..................................... 24
7.3 Micro-switch setting. ................................. 25
8 Pump down procedure. ....................................26
8.1 Purpose of pump down. ............................ 26
8.2 Precautions to take before performing
pump down. .......................................................26
8.3 Precautions to take before performing
pump down. .......................................................26
8.4 Transferring the coolant into an external
tank before performing pump down. .............26
8.5 Recovering large quantities of coolant. ...27
9 Completing installation. ..................................28
9.1 Checks at the end of installation. ............. 28
9.2 Final checks and operating test ................ 28
10 Yearly unit check and maintenance. ............... 29
11 Troubleshooting. ............................................... 30
11.1 Fault codes. ................................................30
SAFETY
1
PRECAUTIONS
e following listed precautions must be taken
scrupulously, as they are essential in ensuring the
integrity of Immergas products.
HAZARD:
- Before servicing or accessing the inner parts,
the Air-Water Heat Pump supply voltage must
be disconnected.
- Only qualied personnel must do the installation and operating test.
- To prevent serious damage to the system and
serious accidents to users, all the precautions
and suggestions in this manual must absolutely
be taken.
1.1 HAZARD.
- This manual must be read carefully before
installation and then kept in a safe place, where
it can easily be found for future needs.
- For his/her own safety, the installer is required
to carefully read all the instructions contained
in this manual.
- e user installation and instructions manual
must be given to the user to keep in a safe place,
where it can be accessed for future needs or in
the event it needs to be handed over to a new
user following sale of the heat pump or of the
building in which it is installed.
- is manual explains the installation methods
of an Immergas Water-Air heat pump system.
Using unapproved components and/or different types of control systems automatically
invalidates any form of Warranty provided by
the manufacturer. In fact, the manufacturer
cannot be held liable for damages caused by
changes or methods of use that it did not previously authorise.
- This unit is compliant with the dictates of
the European Union Low Voltage Directive
(2006/98/CE) and Electromagnetic Compatibility Directive (2004/108/CEE).
- e manufacturer shall not be held liable for
any damage caused by changes that were not
previously authorised in writing or by errors
in connecting the hydraulic and/or electrical
lines. Failure to follow these instructions and/or
using the unit out of the limits in the "Operating
Limits" table automatically invalidates any form
of Warranty provided by the manufacturer.
- e warranty shall be automatically invalidated
in the event even just one of these instructions
was not followed and the unit was made to
operate outside the Operating Field (Central
heating: from -25 to 35°C/Cooling: from 10 to
45°C) shown in the Unit Specications on page
5 of this manual.
- e unit must not be used if it is damaged or
shows signs of faults; for example, excessive
noise or a burning smell.
- To prevent electrical shock, res and/or accidents, if the unit gives o smoke, the power
cable overheats and/or is damaged, and/or the
unit becomes very noisy, it is of fundamental
importance to open the protection switch and
contact the Immergas Customer Assistance.
- e unit, its electrical, hydraulic and refrigerant
connections, as well as its protections must be
regularly inspected. All these inspection operations must only be done by qualied personnel.
- e unit must be kept out of the reach of children, as it contains live electrical components
and moving parts.
- e unit must not be repaired, moved and/or
reinstalled by unauthorised personnel, as to do
so may cause damage to the unit and/or cause
electrical shock and/or res.
- ere must be no containers containing uids
or other objects on the unit.
- All the materials used to produce and package
the air-water heat pump are recyclable.
- e packaging materials and the remote control
(optional) batteries, when exhausted, must
be disposed of in compliance with the local
standards in force.
- At the end of its life cycle, the air-water heat
pump, which is special waste and contains
coolant, must be disposed of by bringing it
to an authorised centre or returning it to the
dealer where it was purchased.
- To prevent the risk of injury from contact with
the edges of the components, work gloves must
be worn when unpacking, handling, installing
and servicing the unit.
- The inner components (hydraulic pipes,
coolant pipes, heat exchangers, etc.) must not
be touched with bare hands when the unit is
operating. If they must be touched, the unit
must rst be switched o, waiting the amount
of time necessary for it to cool down and, in
any case, wearing protective gloves.
- In the event of coolant leaks, do not touch the
leaking coolant to avoid serious injury.
- If the heat pump is installed in a closed room,
any necessary forced ventilation devices must
be provided for. ey must be the proper size
so that, in the event of leaks, the level of coolant
in the air cannot exceed the allowed limits.
- Otherwise, the people in the room under these
circumstances would be subjected to serious
risks of suocation, with even fatal eects.
- e packaging material must be disposed of
safely. It may contain nails or pieces of wood
that could injure people.
- Upon receiving the machine, it must be inspected for any damages during transport. Should
such damages be found, it MUST NOT BE
INSTALLED and the damages found must be
immediately communicated in writing to the
courier or the dealer (in the event the unit was
picked up at a dealer).
- e unit must be installed respecting the spaces
indicated in the Installation Manual in order to
make it possible to access both sides of it and
carry out maintenance operations. Should it
be installed not respecting the procedures indicated in this Manual, any expenses due to the
need to use ladders, scaolding or other raised
systems for any warranty operations shall NOT
be considered covered by the warranty itself
and, therefore, shall be entirely charged to the
Customer.
- The supply voltage line must have all the
features required by the standards in force
regarding the installation site.
- Make sure the supply voltage mains voltage
and frequency are compatible with what the
unit requires and that the system has enough
power available to supply the unit and all the
other electrical utilities it supplies. Also make
sure that all the safety switches of this system
are of the proper dimension.
- Make sure that the entire electrical system
(cables, conductor cross-sections, protections,
etc.) are compliant with the standards in force
at the installation site and with the instructions contained in the wiring diagram. All
the connections must also be compliant with
the dictates of the local standards regarding
air-water heat pump installation. Devices that
can be disconnected from the electrical mains
must not be in overvoltage conditions.
- e earthing connection must not be done on
water or gas pipes, lightning protection systems
or telephone/intercom lines as, otherwise, there
would be serious risks of electrocution and/or
res.
- Both a circuit breaker switch and a safety differential switch must be installed, both with
a capacity compliant with the dictates of the
pertinent local standards in force.
- Otherwise, there would be serious risks of
electrocution and/or res.
- Defrost water must be able to drain normally
from the unit even when the outdoor temperature is very low. Ice plugs must not be
allowed to form on this line. Otherwise, the
resulting water may not be able to drain out of
the unit, causing large chunks of ice to form,
which could, in turn, stop the unit itself from
operating.
- e power cable and the communication cable
between the indoor and outdoor unit must run
at least 1 m away from any electrical devices.
- e unit must be protected from rodents and
other small animals. If allowed to access the
unit, such animals could cause malfunctions
and/or cause smoke emissions or res. e user
must also be given clear instructions to keep the
entire area around the unit clean and tidy.
55
UNIT SPECIFICATIONS.
528
537
675
2
2.1 MAIN DIMENSIONS.
Audax Pro 5
Audax Pro 8 and 10
638
310
364
330973
61050
620
940
880
12
360
23
54.1
384
998
2-2
2.2 OUTDOOR UNIT SPECIFICATIONS.
Unit of
Typ e
Power Supply - 220 ~ 240 V AC / 1 F / 50 Hz 220 ~ 240 V AC / 1 F / 50 Hz 220 ~ 240 V AC / 1 F / 50 Hz
Compressor - Rotary inverter Rotary inverter Rotary inverter
Maximum input W 3200 4200 5100
Condenser - Ø 7, L 906 Ø 8, FP 1.5, L 950 Ø 8, FP 1.5, L 950
Motor fan -
Coolant load kg 1.2 2.0 2.0
Chiller line section - liquid phase 6.35 9.52 9.52
Chiller line section - gaseous phase 15.88 15.88 15.88
Sound power level dBA 62 66 66
Operating eld (central heating /
cooling)
Water output temperature °C
Weight (net / gross) kg 47.5 / 52.5 74.0 / 82.0 74.0 / 82.0
Dimensions (L x H x D, overall
clearance)
meas-
ure-
ment
°C - 20 ~ 35 / 10 ~ 46 - 20 ~ 35 / 10 ~ 46 - 20 ~ 35 / 10 ~ 46
mm 880 x 638 x 310 940 x 998 x 330 940 x 998 x 330
Audax Pro 5 Audax Pro 8 Audax Pro 10
Helicoidal, Ø420.3 with 3
blades, inverter BLDC
Cooling: 5 ~ 25
Central heating: 25 ~ 55
Helicoidal, Ø420.3 with 3
blades, inverter BLDC
Cooling: 5 ~ 25
Central heating: 25 ~ 55
Helicoidal, Ø420.3 with 3
blades, inverter BLDC
Central heating: 25 ~ 55
Cooling: 5 ~ 25
66
UNIT INSTALLATION.
3
3.1 SELECTING THE INSTALLATION
POSITION OF THE OUTDOOR
UNIT.
e installation position must be identied in
agreement with the user and keeping the following in mind:
- e unit must not be installed upside down or
on its side, otherwise it would undergo serious damages because compressor lubrication
would be jeopardised, as the oil would spill
into the coolant circuit.
- e unit must be installed in a dry, ventilated
position but protected from sunlight and strong
winds.
- e space around the unit must be kept clean
and clear of any obstacles.
- e installation position must be such that the
noise from the unit and the air it discharges are
not of disturbance to anyone.
- e unit must be installed in a position in
which the pipes and cables can easily be connected.
- e installation position must have a stable, at
surface that can support the weight of the unit
without generating and/or amplifying noises
and vibrations.
- e unit must be installed in a position that
allows the air to be discharged outdoors with
no impediments.
- ere must be no trees near the installation
position and it must not be accessible to animals as, otherwise, the unit could have trouble
operating.
- All around the unit, there must be the space
necessary for air to circulate and there must
be no stereo, radio, television, computer, etc.
systems.
- If installed near the shoreline, the unit must not
be directly exposed to salinity (see g.3-1).
3.2 LOCATIONS WHERE THE UNIT
CANNOT BE INSTALLED.
e unit must not be installed in sites where:
- ere are mineral oils or arsenic acids. Otherwise, the parts of the unit in resin could burn,
damaging it. e coolant-air exchanger could
also be damaged, which would have a very
negative impact on unit operation.
- ere are corrosive, sulphuric or acid gases like,
for example, those from chimneys or exhaust
air vents. Otherwise, the unit's copper pipes
could corrode, allowing the coolant to escape.
- ere is the risk of ammable gas leaks or there
are carbon bres or ammable dust. Petrol and/
or solvents are handled.
Attention: when the unit is installed in areas
exposed to snowfall or excessively harsh
temperatures (aka in areas with typically low
temperatures and high humidity - that is, with
temperatures below -7°C and relative humidity
above 85%), ice plugs could form in the defrosting water drainage outlets.
Any build-up of ice that forms on the unit can
damage it.
Attention: e unit must be installed respect-
ing local electrical standards.
Should the weight of the unit exceed 60 kg,
wall-mounted installation is not recommendable as it is preferable to install it on the ground
for safety reasons.
- If installed wall-mounted, the unit must be
securely attached to the structure supporting it.
- Water or condensate produced by the unit must
be able to drain out evenly and safely.
- Local regulations permitting, if it should be
installed on a road, the unit must be raised at
least 2 m from the pavement so as to prevent the
air it discharges from disturbing passers-by (to
be certain, consult the standard of town where
it is installed).
In the event of installation near the shoreline, as an alternative the unit can be positioned in a place where there is an obstacle (a
building, a wall, etc.) separating it from the sea breeze that could cover it in salinity.
Outdoor
Sea breeze
Sea
- If installed on the shoreline, the unit must always be protected by at least a wall.
Protective wall
Sea breeze
Sea
- e unit must be installed in a position in which the condensate it generates and the water resulting from defrosting can drain
out normally.
Do not hesitate to contact Immergas Customer Assistance if you are unable to satisfy all the above conditions. e coolant-air
exchanger must always be kept free of sand and sea water.
unit
Outdoor
unit
Sea breeze
Sea
e wall must be built with heavy materials like, for example,
concrete blocks and be able to stop the sea breeze. e height and
width of the protective wall must be at least 1.5 times the width
of the unit, which must be positioned at least 700 mm away from
the wall itself so as not to impede air expulsion.
Outdoor
unit
3-1
77
3.3 MINIMUM INSTALLATION DISTANCES FOR INDIVIDUAL UNITS.
300 min.
With the back side of the unit
facing a wall
2,000 min
1,500 min.
With the top and front sides of the
unit facing a wall
3.4 MINIMUM INSTALLATION DISTANCES FOR MORE THAN ONE UNIT.
With the front side of the unit
facing a wall
300 min.
600 min.
With the top and back sides of the
unit facing a wall
300 min.
1,500 min.
300 min. 600 min.
With three sides of the unit facing
a wall
300 min.
1,500 min.
With the front and back sides of
the unit facing a wall
3-2
1500 min.
the front side of the unit facing a wall
600 min.
With the front and back sides of the unit facing a wall
1500 min. 600 min. 3000 min. 300 min.3000 min.
With the units facing each other and with the front and back sides of the end
units facing a wall.
600 min.
300 min. 600 min. 600 min. 600 min.
With three sides of the unit facing a wall
300 min.1500 min.
500 min.
500 min.
300 min.
300 min.
300 min.
With the top and front sides of the
unit facing a wall
3-3
Attention: the spaces shown must be le free to allow air to circulate and to ensure accessibility for repairs or maintenance on every side of the units.
In fact, it must be possible to disassemble all the unit components under the utmost safety conditions (both for objects and for people).
88
620
940
328
344
384
3.5 INSTALLING THE OUTDOOR UNIT.
20mm
To prevent the noise and vibrations it could
generate from being amplied, the outdoor unit
must be installed on a rigid base. Furthermore,
should it be installed in a position that is exposed
to strong winds or wall-mounted, it must be
solidly secured to the structure supporting it
(oor or wall).
e unit must be secured at the base with anchoring screws, using the anti-vibration pads
provided (g. 3-4).
N.B.: each anchoring screw must protrude
by at least 20mm from the base in which it is
embedded.
Attention:
- It is a good idea to insert rubber washers (not
supplied) between the tightening screw nuts
and the feet on the unit, as well as between
the latter and the supporting base to prevent
corrosion.
- A draining channel must be dug all around the
base of the unit that can appropriately drain the
water and condensate produced by the unit.
- When the unit must be installed on a roof, the
resistance of said roof must rst be checked.
Install the unit without damaging the roof itself
and/or its waterproong.
3.6 OUTDOOR UNIT MOUNT
STRUCTURE.
Figures 3-5 to 3-7 illustrate the instructions to
install the condensing unit mount structure.
When the outdoor unit is installed on a mount
structure attached to a wall, you must:
- Make sure the wall can support the weight of
the support structure plus the weight of the
device;
- Install the mount structure with the least
amount of overhang possible;
- Insulate the structure with respect to the wall
by inserting rubber dowels between them to
prevent vibrations from being transmitted to
the wall.
- Attention: the machines cannot be ducted.
Hole for anchoring screw
3-4
NO
OK
OK
3-6 3-7
NO
3-5
Outdoor
Unit
Anchoring Screws
Outdoor unit mount
structure
Base surfaces
Structure designed to eliminate
the residual vibrations that
the unit could transmit to the
outdoor unit mount structure
(not supplied by Immergas).
Rubber shock absorbers (not
supplied by Immergas) selected
to eliminate the vibrations that
the mount structure could
transmit to the wall.
99
3.7 DRAINAGE.
During central heating, ice can deposit on the
outer surface of the coolant-air exchanger. To
prevent these deposits from becoming excessive,
the unit runs defrosting cycles to melt them. e
water resulting from this process is eliminated via
drainage holes to prevent it from re-solidifying
at the bottom of the unit when the outdoor
temperature is quite low.
• If, for whatever reason, this water cannot be
allowed to drain freely, you must:
- Leave a space of at least 50 mm (5 kW version)
and 100 mm (8 / 10 mm version) from the
support surface (Fig. 3-8).
- Insert the drainage tting in one of the three
drainage holes on the bottom of the unit and
plug the other three with the supplied drain
plugs.
- Connect the drainage tting to a hose that
conveys the water to the desired location.
- Prevent dust and debris from entering the
drainage hose.
Attention: if the water produced by the unit is
not properly drained, the performance of the
entire system will suer a negative impact and
the system itself could be damaged.
Warnings.
1 Dig a draining channel all around the base of
the unit that can appropriately drain the water
and condensate produced by the unit.
2 To facilitate drainage, you can install the unit
on a base of cement blocks so that it is at least
150 mm o the ground.
3 e unit must be raised at least 150 mm o the
ground to prevent it from being ooded in the
event of heavy rain.
4 If installed in a snowy area, the unit must be
raised o the ground by at least the height of
the heaviest foreseeable snowfall.
5 If wall-mounted (see gure), it is a good idea to
position a container (not supplied by Immergas) about 150 mm below the bottom of the
unit to collect and drain the condensate that
may drip from the unit.
3-8
3-10
≥ 50 mm (Audax Pro 5)
≥ 100 mm (Audax Pro 8 / 10)
3-9
Audax Pro 5 Audax Pro 8 and 10
Ø20 drainage hole (in 4 positions)Ø20 drainage hole
Air ow side
30 mm
Drainage tting (1)
Air ow side
1010
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