Airwell WELLEA SPLIT AW-WHPST0410-N91 Installation instructions

INSTALLATION &
OPERATING MANUAL
WELLEA SPLIT TANK R32
Indoor & Outdoor
AW-YHPS04-H91
AW-YHPS06-H91
AW-YHPS08-H91
AW-YHPS10-H91
20AW-INSTALLATION & OPERATING MANUAL WELLEA SPLIT TANK R32-EN-20200421
AW-WHPST0410-N91

2
The data contained in this manual is not binding and may be changed by the manufacturer without prior notice.
Reproduction, even partial, is FORBIDDEN. Airwell Residential S.A.S.
Dear Customer,
We congratulate you on choosing these product
Airwell has been working for years to offer systems able to assure the maximum comfort for a
long time with highly-reliable, efficient, high-quality and safe solutions.
The target of the company is to offer advanced systems, that assure the best comfort and
reduce energy consumption as well as the installation and maintenance costs for the entire life-
cycle of the system.
With this manual, we want to give you information that are useful for all phases: from reception,
installation and use to disposal - so that such an advanced system can provide the best
performances during installation and use.
Best regards and have a good read.
Airwell Residential S.A.S.

3
1 Safety considerations 6
3 General 13
4 Reception 14
5 Installation requirements 19
6 Water connections 29
7 Refrigerating connections 34
8 Electrical connections 39
9 Start - up 48
10 Control 72
11 Maintenace 121
12 Disposal 134
13 Accessories 135
14 Technical data 136
2 Information on refrigerant gas 12
15 Energy data sheets and labelling 144
INSTALLER use
Pay particular attention to:
USER use

*
Refrigerant piping: distance maximum height differences
Consider sound emissions
Avoid installations next to bedrooms
A
Pump head/pressure drops of the system
Water connection
M
N
Water minimum content always circulating
Ricirculation
pump
(provided by
the custo-
mer)
Install in a local or compartment where the
temperature can't drop below 0 ° C.
L
Functional clearances/access
For details see the manual sections
Internal unit
B
Place so that it doesn't disturb
Electrical connections
Separate power supply and signal
F G
Size 4kW 6kW 8kW 10kW
Min. content / Liters 15 22 28 35
System
pump
Anti-vibration joints Cut-off valves
Vent
External unit
KPa = Useful pump discharge head
* Storage tank: this is present when the radiator circuit is excluded and there is not enough water
in the towel warmer circuit
Respect the functional clearances for maintenance
Check that the pump head is adequate to the type of system
Power supply 220-240V ~ 50Hz
Segnals
Size 4kW - 6kW
Liquid Ø external 1/4”
Gas Ø external 5/8”
8kW - 10kW
3/8”
5/8”
* Use a cable puller to insert the power cable through the opening.
*

Rapid guide
WELLEA SPLIT TANK
BEFORE REQUESTING START-UP
− Completed system
− Refrigeration circuit emptying and charging
− Water circuit loading and venting
Snowdrifts
C
Provide a protection
Water features
H
If necessary, install water softener
Condensate discharge
D
To avoid the water freezing downstream of the
drain, lay the tube below the frost line (A).
Strong winds
Provide windbreaks or similar
E
Domestic Hot Water Requirements
I
1 Domestic hot water output
2 Water input
3 System water return
4 System water outlet
5 Refrigerant line( liquid)
6 Refrigerant line ( gas)
8 Solar system input (option)
9 Solar system output (option)
10 Domestic hot water recirculation
Internal unit drains Expansion tanks
Litres ? °C ?
Tmax 95 °C
Charge OK ?
Carefully wash the system
O P
The requirements vary by the number of people living in the building
Estimated average daily per capita consumption of hot water
Requirements Liters - day - people (bathroom) Liters - day - people (kitchen)
Low Min.15 > max. 30 Min. 10 > max. 20
Medium Min.30 > max. 60 Min. 20 > max. 40
High Min.60 > max. 120 Min. 40 > max. 80
Example: average requirement for 4 people need about 230 litres/day
Between 8°f
and 15°f
C.C. Components provided by Customer
A System valve
I.A. Aqueduct input
FWater filter (supplied as standard)
F.I. System filter (provided by the
customer)
M Pressure gauge
P. A. Descaler protection
PS Solar pump
PR Recirculation pump
RID Pressure reducing valve
VEACS Domestic hot water expansion tank
VSACS Domestic hot water safty valve
VES Solar expansion tank
VR Check valve
VT Mixing valve thermostatic
System cleaningQ
*
*DHW safty valve (provided by the customer)

6
1 SAFETY CONSIDERATIONS
The precautions in this manual are divided as
indicated on the side.
They are important, so make sure you follow them
closely.
Please read these instructions carefully before
installing.
Keep this manual handy for future reference. This
unit contains fluorinated gases. For specific
information on gas types and quantities, please refer
to the plate found on the unit.
Please contact your dealer for future assistance.
DANGER


An incorrect installation of equipment or
accessories may provoke electric shocks, short
circuits, leaks, fire or other damages to the
equipment. Make sure you only use
accessories provided by the supplier - which are
designed specifically for the equipment -and
make sure they are installed by a
professional.
All activities described in this manual must be
performed by authorised technicians. Make
sure to wear suitable personal protection such as
gloves and safety goggles while installing the unit
or performing maintenance operations.
 Switch off the power switch before touching
electrical components and terminals.
 When the service panels are removed, the live
parts can easily be touched by mistake.
 Never leave the unit unattended during
installation or maintenance operations while
the service panel is removed.
 Do not touch the water pipes during and after
performing welding or junction work as the
pipes may be very hot and you may burn your
hands. To avoid lesions, wait until the pipes
return to a normal temperature or make sure you
are wearing protective gloves.
M e a n i n g o f t h e s y m b o l s
DANGER, WARNING,
CAUTION and NOTE
DANGER
 It indicates a situation of
imminent danger that, if not
avoided, will cause death or
serious lesions.
WARNING
 It indicates a potentially
dangerous situation that, if not
avoided, may cause death or
serious lesions.
CAUTION
 It indicates a potentially
dangerous situation that, if not
avoided, may cause slight or
moderate injury. Also used to
warn against unsafe practices.
NOTE
 It indicates situation that may
cause accidental
damage to the equipment or
property.

7
 Do not touch any switch with wet hands.
Touching a switch with wet hands may lead to
electric shock.
WARNING
 The power supply of the WELLEA series
complies with IEC / EN 61000-3-11 and must be
connected to a suitable power supply
network, in able to support a maximum system
impedance of Zmax = 0.445 ohm on the
interface. Keep in touch with the supply
authority so to ensure that the power supply is
connected only to a power supply with an
impedance no more than the one shown
above.
 Maintenance operations must be performed as
recommended by the manufacturer.
Maintenance and reparation operations
requiring the assistance from specialized
personnel must be performed under the
supervision of the person competent as
regards flammable refrigerants.
 Tear and dispose of plastic bags so that
Children children may not play with them.
playing with plastic bags risk choking.
 Some products use PP packaging straps. Do
not pull the straps or use them to lift or move the
product. It may be dangerous should the straps
break.
 Dispose safely of packaging material such as
nails or other metal or wooden parts that may
cause lesions.
 Ask your dealer or qualified personnel to
perform installation operations according to
this manual. Do not install the unit yourself. An
incorrect installation may cause water leaks,
electric shock or fire.
 Make sure to only use accessories and parts
specified for installation operations. Failing to
use specific parts may cause
 water leaks, electric shock, fire or the unit
falling from its support.
 Install the unit on a structure that can
withstand its weight. An insufficiently robust
Warning:
Fire hazard
Flammable materials
1 SAFETY CONSIDERATIONS

8
structure may lead to the unit falling causing
possible lesions.


Perform installation operations considering the
possibility that strong winds, hurricanes or
earthquakes may occur. Incorrect installation
operations may lead to accidents caused by
falling equipment.
Make sure all electrical operations are
performed by qualified personnel in
accordance with the law, local regulations and this
manual.
 Connect the unit to a separate power supply
circuit. An insufficient capacity of the power
supply circuit or incorrect connections may
lead to electric shock or fire.
 Make sure to install an additional differential
circuit-breaker against a leakage to earth
compliant with the law and local regulations:
omnipolar circuit breaker, at least 3 mm
separation in all poles, residual current device
(RCD) with a rated value not exceeding 30 mA.
 Failing to install a differential circuit-breaker
may lead to electric shock and fire.
se the
Make sure all the wiring is safe. U
specified wires and make sure terminal
connections and wires are protected against the
water, external forces or other phenomena.
Incomplete connections or fixing may cause a fire.
 When connecting the power supply, arrange the
wires so that the front panel can be fixed properly.
If the front panel is not in position, it may lead to
terminals overheating, electric shock or fire.
 People working or intervening on a cooling
circuit must hold a suitable certification issued by
an authorised assessment centre proving their
suitability to handle refrigerants safely in
compliance with a specific assessment
recognised by industry associations.
 After installation operations are over, verify
that there are no refrigerant leaks.
1 SAFETY CONSIDERATIONS

9
 Never touch the leaking refrigerant directly, as it
may lead to serious frostbite injuries. Do not touch
the refrigerant pipes during and right after
functioning, as they may be hot or cold depending
on the conditions of the refrigerant flowing through
the pipes, compressor and other parts of the
cooling circuit. Burns or
frostbite may occur if you touch the
refrigerant pipes. If it is necessary to touch the pipes,
wait for them to return to a normal temperature
or wear protective gloves and
clothes.
 Do not touch the internal parts (pump, backup
heater, etc.) during and immediately after
functioning. Touching internal parts may cause
burns. To avoid lesions, wait until the internal parts
have returned to a normal temperature or, if
touching them is necessary, wear protective
gloves.
 Do not use other means than those
recommended by the manufacturer to hasten the
defrosting or cleaning process.
 The equipment must be placed somewhere
without continuous ignition sources (e.g. open
flame, a gas-operated device or an electric
heater).
 Do not pierce nor burn.
 Be aware that refrigerants are odourless.
CAUTION
 Place the unit on the ground.
 The earth resistance should comply with the law
and local regulations.
 Do not connect the earth cable to gas or water
mains, lightning rods or phone earth cables.
ctrical
 Incomplete earthing may cause ele
shocks.
•Gas mains: fires or explosions may occur in case of a
gas leak.
•Water mains: rigid vinyl tubes are not effective.
1 SAFETY CONSIDERATIONS

10
•Lightning rods or phone earth cables: the
electrical threshold can increase abnormally if hit by
lightning.
 Install the power supply cable at least one
metre from TVs or radios to prevent
interferences or disturbances. Depending on
the type of radio wave, one metre may not be
enough to avoid disturbances.
 Do not wash the unit as it may cause electric
shocks or fires.
 If the power supply cable is damaged, it must be
replaced by the producers, personnel from its
assistance network or qualified personnel.
 Do not install the unit in the following places:
•Where there is mineral oil, even in form of vapour.
Plastic parts may deteriorate, disperse and cause
water leaks.
•Where corrosive gases (such as sulphurous acid) are
produced.
•Where the corrosion of copper pipes or welded
parts may cause refrigerant leaks.
•Where there are devices emitting electromagnetic
waves. Electromagnetic waves may disturb the
control system and cause malfunctions.
•Where flammable gases may leak, or carbon fibre or
flammable powers may be found in the air or where
volatile flammable materials such as paint thinners or
petrol are handled. These gases may cause a fire.
•Where the air contains high levels of salt, such as the
seaside.
•Where the power supply voltage is subject to
fluctuations, such as in factories.
•On vehicles or ships.
•Where there are acid or alkaline vapours.
 Prior to installation, verify if the user’s power
supply meets the unit’s installation
requirements (including reliable earthing,
differential circuit-breaker, component size, wire
section, etc.). If the electrical installation
requirements are not met, the unit cannot be
installed until the electrical system is rectified.
1 SAFETY CONSIDERATIONS

11
 Before the hydraulic connection and electrical
wiring operations, verify that the installation
area is safe and without hidden dangers such as
water, electricity and gas conduits.
 Do not touch the fins of the heat exchanger as
they may cause injury.
 If installing multiple units in a centralised
manner, adjust the electric load on the various
phases. Do not connect multiple units to the
same phase of the three-phase supply.
 The following subjects may use the unit if
supervised or instructed on safe usage and
capable of understanding the possible dangers:
children who are minimum 8 years old, people with
no experience or knowledge, people with limited
physical, sensory or mental abilities.
 Children should be supervised to ensure that they
do not play with the appliance.
 Cleaning and maintenance operations to be
carried out by the user must not be performed by
unsupervised children.
 Once the installation is complete, the unit
tested and functioning is normal, instruct the client
as regards the use and maintenance of the unit
as indicated in this manual. In
addition, make sure that the manual is suitably kept
for future reference.
 DISPOSAL: do not dispose of this product as
unsorted waste. Contact the local authorities for
information on the collection systems
available. If electrical equipment is disposed of in
landfills, dangerous substances may infiltrate the
waste water and enter the food chain, harming
the health and well-being of people and animals.
1 SAFETY CONSIDERATIONS

12
2 INFORMATION ON REFRIGERANT GAS
Size Refrigerant (Kg) Equivalent CO2
tons
4kW - 6kW 1,55 1,04
8kW - 10kW 1,65 1,11
This product contains fluorinated greenhouse gases covered by the
Kyoto protocol. Do not discharge gas into air.
Refrigerant type: R32
Characteristics of R32 refrigerant:
•minimum environmental impact thanks to the low Global
Warming Potential GWP
•low flammability, class A2L according to ISO 817
•low combustion speed
•low toxicity
The refrigerant quantity is indicated on the unit plate Quantity
factory-loaded refrigerant and equivalent CO2 tons:
Physical characteristics of the R32 refrigerant
Safety class (ISO 817) A2L
GWP 675
LFL Low flammability limit 0.307
BV Burning velocity 6,7
Punto di ebollizione -52
GWP 675
GWP 677
Self-ignition temperature 648
kg/m3 @ 60°C
cm/s
°C
100 yr ITH
ARS 100 yr ITH
°C

13
UNIT INDENTIFICATION
Serial number label
The serial number label is positioned on the unit and allows to
indentify all the unit features.
Warning
It has not to be removed for any reason. It
reports the regulations indications such as:
•machine type, exmple
•size
•serial number xxxxxxxxxxxx
•year of manufacture
•wiring diagram number
•electrical data
•manufacturer logo and address .
Serial number
It identifies uniquely each machine.
It identifies specific spare parts for the machine.
Assistance request
Note data from the serial number label and write them in the chart
on side, so you will find them easily when needed.
In case of intervention you have to provide data.
3 GENERAL
Serie
Size
Serial number
Year of manufacture
Wiring diagram
Preliminary information
NOTE
Before beginning the work, ensure you that have the final project for
installing the system and positioning the units.
Operate in compliance with safety regulations in force .
Use single protection devices.

14
Before accepting the delivery you have to check:
•that the unit hasn’t been damaged during transport.
•Check that the materials delivered correspond with that indicated on
the transport document comparing the data with the identification
label ‘A’ positioned on the packaging.
In case of damage or anomaly:
•Write down on the transport document the damage you found and
quote this sentence: "Conditional acceptance clear evidence of
deficiencies/damages during transport".
•Contact supplier and the carrier by fax and registered mail with
advice of receipt.
NOTE
Any disputes must be made within the 8 days following the
delivery. Complaints after this period are invalid.
Storage
Shelter from: direct sunlight, rain, sand and wind.
Stocking temperature:
maximum 50°C
minimum -10°C NOTE
The respect of the instructions on the exterior side of the
packaging assures the physical and functional integrity of the unit
for the final user’s advantage.
Handling
Before handling verify that the unit keeps its balance.
The following examples are indications the choice of the means and
of the handling modes will depend on factors.
1 Verify unit weight and handling equipment lifting capacity . 2
Identify critical points during handling (disconnected routes,
flights, steps, doors).
3 Stair climbing trolley.
4 Use protection (A) to avoid the unit damaging
5 Belt input side for lifting (B) by crane
6 Fork input side the
DANGER
It is strictly forbidden to stand under the machine when it is lifted.
4 RECEPTION
1
2
A
3
4
5
6
A
B

15
External unit
1 Fork input side
2 Input side for lifting by crane
3 Do not lean it more than 45°, and do not lay it sidelong 4 Do
not lean it more than 45°, and do not lay it sidelong
DANGER
It is strictly forbidden to stand under the machine when it is lifted.
4 RECEPTION
1
2
3
4

16
1 - Components supplied
Non-return valve / Water filter / Manual / Welding
fittings / Shut-off valve water / Copper reduction 10-
6
2- Remove wooden platforms
•Remove the screws (External unit)
•Remove the screws (A)
•Move the brackets (B)
•Rimove the brackets
4 RECEPTION
Packing removing
Be careful not to damage the unit.
Keep packing material out of children's reach it may be
dangerous.
Recycle and dispose of packing material in conformity with local
regulations.
1 2
A
A
B
B

17
GENERAL
Schema collegamenti
2 3
4
6
11
10
1
7
8
R1
2
9
9.1
9.2
12
R2
1 Acqueduct Ø 3/4”M R1 Booster 1 (option)
2 Supply line R2 Booster 2 (option)
3 Inertial storage (option) Ø 1”M 6 Drainage tray Provided by the customer
4 System 7 Refrigerant lines Provided by the customer
System outlet Ø 1”M 8 Unit drain Provided by the customer
System return Ø 1”M 9 Solar panels (option) Ø 3/4”M
9.1 Solar panels unit
9.2 Solar pump
10 DHW drain valve Provided by the customer
11 DHW Ø 3/4”M
12 DHW recirculation Ø 3/4”M

18
connections
GENERAL
Components
1. System exchanger
2. System pump
3. System vent
4. Flow-switch
5. Condensate discharge
6. Storage
7. DHW
probe
solar probe (option)
8. Tap
F. Solar system output (option)
G. Solar system output (option)
H. Electric line input
I. System return
J. System outlet
A. Liquid line
B. Gas line
C. DHW output
D. Domestic hot water recirculation input (DHW )
E. Aqueduct input
A
B
C
D E
F
I
1 2
3
8
7
6
5
4
11
13
12
9
10
9. Safety valve system (3 bar)
10. Sludge
11. Anode
12. DHW / System production valve
13. System expansion vessel
14. Resistance (2kW)
G
J
F
G
14
H

19
5 INSTALLATION REQUIREMENTS
If the total refrigerant charge in the system is <1.84 kg there are no minimum
surface requirements.
a Indoor unit
A Room where the unit is installed.
B Room adjacent to room A.
Area A+B must be greater than or equal
to the minimum surface required in table
2 according to the total charge.
If the total refrigerant charge in the system is ≥1.84 kg it is necessary to comply with the minimum surface
requirements indicated in the following procedure:
1 calculate, based on piping length, the total refrigerant charge (mc)
2 calculate area room A (Aroom A)
3 calculate, through table 1, the maximum refrigerant charge allowed by room A (mmax)
4 if mmax ≥mc the unit can be installed in room A
if mmax ≤mc
1 calculate the area of room B adjacent to room A (Aroom B)
2 calculate, through table 2, the minimum total area (Amin total) required for the total refrigerant charge
(mc)
3 if (Aroom A + Aroom B) ≥Amintotal
•calculate, through table 3, the minimum area of natural ventilation opening between room A and room B
•the unit can be installed in room A if
•There are 2 ventilation openings (permanently open) between room A and B, 1 at the top and 1 at the
bottom.
•Lower opening: the lower opening must meet the minimum area requirements (VAmin). It must be as
close to the floor as possible. If the ventilation opening starts from the floor, the height should be
≥20mm. The lower part of the opening must be less than 100 mm from the floor. At least 50% of the
required opening area must be <200 mm from the floor. The entire area of the opening must be <300
mm from the floor.
•Upper opening: the upper opening area must be greater than or equal to the lower opening. The lower
part of the upper opening must be at least 1.5 m above the upper part of the lower opening.
•Outward ventilation openings are NOT considered suitable ventilation openings (the user can lock them
when it is cold).
•if (Aroom A + Aroom B) <Amintotal call the retailer
a

20
5 INSTALLATION REQUIREMENTS
Table 1 - Maximum refrigerant charge allowed in a room: Indoor unit
•For H values lower than 600 mm, the value of
H considered is 600 mm to comply to
IEC 60335-2-40:2018 Clause GG 2.
•For intermediate Aroom, values, consider the
value that corresponds to the lower Aroom
value from the table. If Aroom = 7.5m2consider
the value that corresponds to Aroom= 7m2.
•System with total refrigerant charge lower than
1.84 kg are not subjected to any room require-
ments.
Table 2 - Minimum floor area: Indoor unit
•For H values lower that 600 mm, the value of H
considered is 600 mm to comply to
IEC 60335-2-40:2018 Clause GG 2.
•For intermediate mc value, consider the value
that corresponds to the higher mc value from
the table. If mc = 2,07 kg consider the value
that corresponds to mc= 2,08 kg.
•
•
•
Systems with total refrigerant charge lower than
1.84 kg are not subjected to any room require-
ments.
Charge above 1,85 kg are not allowed in the
sizes 4kW & 6kW.
Charge above 2,22 kg are not allowed in the
sizes 8kW & 10kW.
(Amintotal )