Atlantic Alfea Excellia A.I. 024114 User manual

U0611757_1876_EN_14
02/02/2023
EN
Outdoor unit
WOYG112LHT
WOYG140LCTA
WOYK112LCTA
WOYK140LCTA
WOYK160LCTA
Hydraulic unit
024114
024115
INSTALLATION
Alféa Excellia A.I.
Air/water heat pump split 1 service
For professionals.
To be kept by the user for future reference
Heat pumps & boilers

■Installation and maintenance rules
The appliance must be installed and maintained
by an approved professional in accordance with
current regulations and codes of practice.
• Warning, hydraulic unit should not be installed
in an air current.
■Handling
The outdoor unit must not be placed in a horizontal
position during transport.
If not kept upright during transport, the appliance
could be damaged through displacement of
the refrigerant and damage to the compressor
suspension.
Any damage caused by transportation in a horizontal
position is not covered by the warranty.
If necessary, the outdoor unit may be tilted only
during manual handling (to go through a door or up
a staircase). This operation must be conducted very
carefully and the appliance must be immediately
restored to the upright position.
■Containment of refrigeration circuits
All refrigeration circuits are sensitive to
contamination from dust and moisture. If any such
pollutants penetrate the refrigeration circuit, they
can affect the reliability of the heat pump.
Make sure that the connections and refrigeration
circuits (hydraulic unit, outdoor unit) are
protected correctly.
In the event of a subsequent failure and following
an inspection, the presence of moisture or
foreign bodies in the compressor oil would
automatically void the warranty.
- Check upon receipt that the fittings and refrigeration
circuit caps mounted on hydraulic unit and outdoor
unit are properly seated and secured (cannot be
loosened with bare hands). If this is not the case,
tighten them using a C spanner.
- Check also that the refrigeration connections are
sealed (plastic caps or tubes crimped at the ends
and brazed). If the caps must be removed during
the installation (tubes to be re-cut for example),
put them back as soon as possible.
■Hydraulic connections
The connection must comply with industry standard
practice according to current regulations.
Remember: Seal everything when fitting in
accordance with industry standard practice for
plumbing work:
- Use suitable seals (fibre gasket, O-ring).
- Use Teflon or hemp tape.
- Use sealing paste (synthetic depending on the
case).
Use glycol/water mix if the minimum flow
temperature is set below 10°C. If you are using a
glycol/water mix, arrange for an annual check on
the quality of the glycol. Use monopropylene glycol
only. The recommended concentration is 30%
minimum. Never use monoethylene glycol.
• In some installations, the presence of different
metals can cause corrosion problems;
the formation of metal particles and sludge can
appear in the hydraulic circuit.
• In this case, it is advisable to use a corrosion
inhibitor in the proportions indicated by the
manufacturer.
• You must also ensure that treated water does
not become corrosive.

■Electrical connections
• Before any maintenance operation, ensure
that the general power supply is switched off.
• Specifications of electricity supply
The electrical installation must be carried out in
accordance with current regulations.
Electrical connections will only be made once all
other installation operations (fastening, assembly,
etc.) have been completed.
Warning!
The contract signed with the energy provider must
be sufficient not only to cover the heat pump's power
requirements but also the combined sum of all the
appliances likely to be operating at the same time. If
the power is too low, check the power rating stated
in your contract with your energy provider.
Never use a power socket for the power supply.
The heat pump must be supplied directly with power
(without external switch) by special protected leads
from the electric panel via dedicated bipolar circuit
breakers, C curve for the outdoor unit, C curve for
the electrical heating and domestic water backups
(see tables page 35).
The electrical installation must be fitted with a 30mA
RCD.
This appliance is designed to operate using a
nominal voltage of 230 V +/- 10%, 50 Hz.
• General remarks on electrical connections
It is essential to maintain neutral-phase polarity
when making electrical connections.
Rigid wires are preferable for fixed installations,
particularly in a building.
Tighten the cables using the cable glands to prevent
the feed wires from being accidentally disconnected.
The earth connection and its continuity must be
ensured.
• Cable glands
To ensure the stability of power (Low Voltage) and
sensor (Extra-Low Voltage) cables, it is essential
that the cable glands are tightened according to the
following recommendations:
Size of cable
gland (PE)
(mm)
Diameter of
cable
(mm)
Cable gland
tightening
torque
(check-nut)
(N.m)
Coupling net
tightening
torque
(N.m)
PG7 1 to 5 1.3 1
PG9 1.5 to 6 3.3 2.6
PG16 5 to 12 4.3 2.6
• Connecting to screw terminals
The use of ring, spade or blade terminals or
caps is prohibited.
- Always select wire that complies with current
standards.
- Bare the end of the wire to around 25 mm.
- With round end pliers, form a loop with a diameter
which matches the tightening screws on the
terminal.
- Tighten the terminal screw firmly onto the
loop created. Insufficient tightening can cause
overheating, leading to breakdown or even fire.
Rigid wire Loop
25 mm Spade
or blade
terminal
on flexible
wire
is prohibited
Screw and special
washer
Terminal
• Connecting to controller boards
- Remove the corresponding connector and make
the connection.
Pre-cabled bundle connector and/or screw connector
• Connecting to spring terminals
- Bare the end of the wire to around 12 mm.
- Push the spring with a screwdriver so that the wire
enters the cage.
- Slide the wire into the opening provided for this
purpose.
- Remove the screwdriver and then check that the
wire stays gripped by the cage by pulling on it.
2
1
3
1
3
2
4

- 4 -
Contents
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking and supplies . . . . . . . . . . . . . . . . . . . . 6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional equipment . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General characteristics . . . . . . . . . . . . . . . . . . . . . 7
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operating principle . . . . . . . . . . . . . . . . . . . . . . . 14
Installation 16
Installation of refrigeration connections. . . . . . . . 16
Installation of the outdoor unit . . . . . . . . . . . . . . . 18
Installation of the hydraulic unit . . . . . . . . . . . . . . 20
 Electrical connections 34
Cable dimensions and protection rating . . . . . . . 35
Electrical connections on the single phase outdoor
unit side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Electrical connections on the 3 phase outdoor unit
side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Electrical connections on the hydraulic unit side. 38
Outside sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Room sensor (option) . . . . . . . . . . . . . . . . . . . . . 42
 Controller Interface 46
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Display Description . . . . . . . . . . . . . . . . . . . . . . . 47
Installer Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Navigating the Menus . . . . . . . . . . . . . . . . . . . . . 48
Modifying Settings . . . . . . . . . . . . . . . . . . . . . . . . 49
Temperature control . . . . . . . . . . . . . . . . . . . . . . 50
This appliance must be installed by qualified personnel holding a certificate of competence in the handling
of refrigerants.
 Description of the equipment 6
 Refrigeration connections 22
Rules and precautions. . . . . . . . . . . . . . . . . . . . . 22
Shaping the refrigeration pipes . . . . . . . . . . . . . . 22
Checks and connection . . . . . . . . . . . . . . . . . . . . 25
Filling the installation with gas. . . . . . . . . . . . . . . 26
 Hydraulic connections 30
Connecting the hydraulic unit to the heating circuit . . . 30
Filling and bleeding the installation . . . . . . . . . . . 31
Heating circulation pump speed settings. . . . . . . 32
 Commissioning 44
alfea excellia A.I. / Installation / 1876 - EN

- 5 -
 Controller Menu 52
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Installed options . . . . . . . . . . . . . . . . . . . . . . . . . 53
Hydraulic configuration . . . . . . . . . . . . . . . . . . . . 53
Heat Pump Configuration . . . . . . . . . . . . . . . . . . 58
System status . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Auxiliary functions . . . . . . . . . . . . . . . . . . . . . . . . 62
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Easy Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Basic Hydraulic Layout 70
Electrical Cabling Plans 72
 Fault Diagnosis 76
Hydraulic checks . . . . . . . . . . . . . . . . . . . . . . . . . 78
Checking the outdoor unit . . . . . . . . . . . . . . . . . . 78
Electrical checks . . . . . . . . . . . . . . . . . . . . . . . . . 78
Other maintenance 79
Emptying the hydraulic unit . . . . . . . . . . . . . . . . . 79 Distribution valve . . . . . . . . . . . . . . . . . . . . . . . . . 79
 Quick-start procedure 80
Start-up check-list . . . . . . . . . . . . . . . . . . . . . . . . 80 Commissioning technical datasheet . . . . . . . . . . 82
 Instructions for the end user 83
Faults in the Hydraulic Unit . . . . . . . . . . . . . . . . . 76 Faults in the Outdoor Unit . . . . . . . . . . . . . . . . . . 77
 Maintenance of the installation 78
alfea excellia A.I. / Installation / 1876 - EN

- 6 -
►
Packing
• 1 package: Outdoor unit.
• 1 package: Hydraulic unit and outside temperature
sensor.
►
Unpacking and supplies
While the courier is still present, carefully check the
general appearance of the appliances and check
that the outdoor unit has not been laid in a horizontal
position.
In the event of a dispute, send any relevant reservations
to the carrier in writing within 48 hours and send a copy
of the letter to Customer Services.
►
Definitions
- Split: The heat pump consists of two elements
(an outdoor unit to be installed outdoors and a hydraulic
unit to be installed inside the dwelling).
- Air/water: The surrounding air is the energy source.
This energy is transmitted to the heating circuit water
by the heat pump.
- Inverter: The fan and compressor speeds are
modulated according to the heating requirements.
This technology enables you to save on energy and
operate on a single-phase power supply, whatever
the heat pump's output, by avoiding pulling significant
amounts of current at start-up.
- COP (Coefficient of Performance): This is the
relationship between the energy transmitted to the
heating circuit and consumed electrical energy.
 Description of the equipment
alfea excellia A.I. / Installation / 1876 - EN
Packing contents list
Heat Pump Outdoor unit Hydraulic unit
Model International
Code Reference Code Reference Code
Alféa Excellia A.I. 11 526350 WOYG112LHT 700197 Alféa Excellia A.I.
single phase 024114
Alféa Excellia A.I. 14 526351 WOYG140LCTA 700175
Alféa Excellia A.I. tri 11 526352 WOYK112LCTA 700176
Alféa Excellia A.I.
3-phase 024115Alféa Excellia A.I. tri 14 526353 WOYK140LCTA 700177
WOYK140LCT 700143
Alféa Excellia A.I. tri 16 526354 WOYK160LCTA 700178
►
Optional equipment
• dual circuit kit (code 570630 (074725+075311) )
for connecting 2 heating circuits.
• DHW kit (code 073991)
for connecting a mixed DHW tank
(with built-in electrical backups).
• Boiler connection kit (code 073989)
for connecting a boiler to the heat pump.
• Wireless room sensor A59(code 074208) for
correcting the ambient temperature.
• Wireless room sensor A75 (code 074213),
Wireless room sensor A78 (code 074214)
for correcting the ambient temperature and
programming the heat pump.
• Cooling kit (code 075328).
• High flow rate circulation pump kit (code 074077)
for the installation of 1 underfloor heating circuit
• Anti-vibration blocks (code 523574).
• White PVC floor support (ref. 809532) or
Black rubber floor support (ref. 809536).
►
Operating Range
This heat pump provides:
- Heating in winter,
- The management of electrical backups, for extra
heating on the coldest days,
or
- Installation with boiler connection* for extra heating on
the coldest days,
- Management of two heating circuits*,
- Production of domestic hot water* (provided that it is
combined with a mixed DHW tank),
- Cooling in summer* (for underfloor heating-cooling
system or fan-convectors).
*: These options require the use of additional kits
(see chapter "Required accessory" or "Optional equipment").

- 7 -
Model name Alféa Excellia A.I. 11 14 tri 11 tri 14 tri 16
Rated heating performances (outdoor temp. / flow temp.)
Heat output
+7°C/+35°C - Underfloor heating system kW 10.80 13.50 10.80 13.00 15.17
-7°C/+35°C - Underfloor heating system kW 10.38 11.54 10.38 12.20 12.98
+7°C/+55°C - Radiator kW 7.59 9.48 9.29 10.60 12.24
-7°C/+55°C - Radiator kW 7.57 9.20 9.27 10.10 12.00
Power consumption
+7°C/+35°C - Underfloor heating system kW 2.54 3.23 2.51 3.11 3.70
-7°C/+35°C - Underfloor heating system kW 4.32 5.08 4.28 5.13 5.40
+7°C/+55°C - Radiator kW 3.07 3.95 3.52 4.40 4.93
-7°C/+55°C - Radiator kW 4.57 5.08 5.09 5.65 6.89
Coefficient of performance (COP) (+7°C/+ 35°C) 4.25 4.18 4.30 4.18 4.10
Electrical specifications
Electrical voltage (50 HZ) V 230 400
Maximum current for appliance A 22 25 8.5 9.5 10.5
Nominal current A 11.4 14.2 3.7 4.8 5.5
Maximum current of the Heating system electrical backup A 13.05 / 26.1 3x13
Power of the Heating system electrical backup kW 6 kW (mono) 9 kW (tri)
Circulation pump actual power consumption W 39.5
Maximum power consumed by the outdoor unit W 5060 5750 5865 6555 7245
Rate according to EN14825 0.0049 0.0039 0.0066 0.0053 0.0045
Hydraulic Circuit
Maximum operating pressure
MPa (bar) 0.3 (3)
Flow rate of the hydraulic circuit for 4°C<Δt<8°C
(rated conditions) minimum / maximum l/h 1170 / 2340 1460 / 2920 1170 / 2340 1390 / 2790 1650 / 3290
Miscellaneous
Weight of outdoor unit Kg 92 99
Noise level at 1 m 1(hydraulic unit) dB (A) 39
Sound power level in accordance with EN 12102 2(hydraulic unit) dB (A) 46
Noise level at 5 m 1(outdoor unit) dB (A) 47 47 46 47 47
Sound power level in accordance with EN 12102 2(outdoor unit) dB (A) 69 69 68 69 69
Weight of hydraulic unit (empty / full of water) Kg 42 / 58
Hydraulic unit water capacity l 16
Heating system operating limits
Outdoor temperature min/max °C -25 / +35
Max. heating water flow temperature underfloor heating °C 45
Max. heating water flow temperature low temperature radiator °C 60
Min. flow water temperature °C 8
Refrigeration circuit
Gas pipe diameters Inches 5/8
Liquid Piping Diameters Inches 3/8
Factory fill of refrigerant R410A 3g 2500
Maximum operating pressure
MPa (bar) 4.15 (41.5)
Minimum / Maximum length of pipes 4 / 6 m 5 / 15
Maximum length of pipes 5/Maximum level difference 5m 20 / 15
►
General characteristics
1Sound pressure level at (x) m from the appliance, 1.5m off the ground, open field
directionality 2.
2The sound power level is a laboratory measurement of the emitted sound power. It
does not correspond to a measurement of the perceived sound power.
3Refrigerant R410A as per NF EN 378.1 standard.
4Filling with refrigerant R410A is done at the factory.
5Taking into account a possible additional fill of refrigerant R410A (see "Additional
filling", page 28).
6 The announced thermal and acoustic performances are measured with 7,5m
length refrigerant lines.
alfea excellia A.I. / Installation / 1876 - EN

- 8 -
fig. 1 - Dimensions in mm
31 77900330 12
9
400
650
Air
Orifice d’écoulement (Ø 20) 4 trous Ø 12
Vue de dessus
Vue de face
Vue de dessous
Vue de coté
21
1290
151
170
196
370
99
3/8”
5/8”
Air
Air
900
1290
9
21
650
370
Air
31 12330
400
Air
Air
Front view
Top view
Side view
alfea excellia A.I. / Installation / 1876 - EN
■Outdoor Unit,
Excellia A.I. 11 and 14
■Outdoor Unit,
Excellia A.I. tri 11, 14 and 16
4 holesOverflow hole
Bottom view

- 9 -
448
9896 477
81
847
804
Heating return
ø M 26x34
Heating flow
ø M 26x34
Front view Side view
■Hydraulic unit
Space requirements of the hydraulic unit, see page 20.
fig. 2 - Dimensions in mm
1* 2*
1 Elbow
for condensate evacuation.
2
Plugs (x2)
(depending on
model)
fig. 3 - Accessories provided with the outdoor unit
 6
5 Bracket for attaching hydraulic
unit.
6 Outside sensor to monitor the outdoor
temp.
fig. 4 - Accessories provided with the hydraulic unit
alfea excellia A.I. / Installation / 1876 - EN

- 10 -
-50
1000
10000
43907
2490
338
-25 0 25 50 75 °C
°C
0
2500
5000
7500
10000
12500
15000
17500
20000
22500
25000
27500
30000
32500
0 10203040 5060 708090100
Outside sensor QAC34
HP return sensor.
HP flow sensor.
fig. 5 - Ohmic sensor values (Hydraulic unit)
fig. 6 - Available hydraulic pressures and flow rates
Variable pressure
Constant speed
Constant pressure
0
0
1
2
3
4
5
6
7
8
9
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
m3/h
mCE (1 mbar = 10 mmCE = 100 Pa)
0 0,5 1 1,5 2 2,5
I
III
II
0
0
1
2
3
4
5
6
7
8
9
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
m3/h
mCE (1 mbar = 10 mmCE = 100 Pa)
I
II
III
0
0
1
2
3
4
5
6
7
8
9
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
m3/h
mCE (1 mbar = 10 mmCE = 100 Pa)
0 0,5 1 1,5 2 2,5
I
II
III
alfea excellia A.I. / Installation / 1876 - EN

- 11 -
fig. 7 - Ohmic sensor values (Outdoor unit)
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
10000
1000
100
10
1
- Compressor.
- Discharge.
- Condensation.
- Expansion valve.
- Evaporator inlet.
- Outdoor unit.
Temperature °C
Ohmic value (kΩ)
alfea excellia A.I. / Installation / 1876 - EN

- 12 -
►
Description
fig. 8 - Outdoor unit components
Key:
1. High performance and low noise impeller.
2. Electrical motor with variable "inverter" operation.
3. "Inverter" control unit.
4. Check lights and buttons.
5. Connection terminal blocks
(power supply and interconnection).
6. Refrigerant storage bottle.
7. 4-way valve.
8. Anti-corrosion treated bodywork.
9. Main circuit electronic expansion valve.
10. Noise and thermally insulated "inverter" compressor with liquid injection port.
11. Refrigeration connection valves (flared connectors) with protective caps.
12. Holding tank with condensate drain hole.
13. High-performance exchange surface evaporator; anti-corrosion treated hydrophilic aluminium fins and
grooved copper tubes.
14. Solenoid valve for liquid injection.
15. Electronic expansion valve for liquid injection.
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
2
1
3
4
5
7
9
8
10
12
13
11
14
15
6
alfea excellia A.I. / Installation / 1876 - EN
■Alféa Excellia A.I. 11 and 14 ■Alféa Excellia A.I. tri 11 , 14 and 16

- 13 -
fig. 9 - Hydraulic unit components
Key:
1 - Electric box.
2 - Controller / User interface.
3 - Start/stop switch.
4 - Heating circulation pump.
5 - Heating flow.
6 - "Gas" refrigeration connection.
7 - "Liquid" refrigeration connection.
8 - Heating return.
9 - Drain valve.
10 - Safety valve.
11 - Pressure gauge.
12 - Automatic bleeder valve.
13 - Expansion vessel.
14 - HP electrical backup.
15 - Condenser.
2
1
4113
7
6
58
9
10
13
14
15
12
alfea excellia A.I. / Installation / 1876 - EN

- 14 -
►
Operating principle
The heat pump transmits the energy contained in the
surrounding air into the dwelling to be heated.
The heat pump consists of four main elements, in which
a refrigerant (R410A) circulates.
- In the evaporator (ref. 13, fig. 8, page 12):
The calories are taken from the outside air and
transmitted to the refrigerant. Because it has a low
boiling point, it changes from a liquid to a vapour, even
in cold weather (down to -25°C outside temperature).
- In the compressor (ref. 10, fig. 8, page 12):
The vaporised refrigerant is pressurised and takes on
even more calories.
- In the condenser (ref. 14, fig. 9, page 13):
The energy of the refrigerant is transmitted to the
heating circuit. The refrigerant returns to its liquid state.
- In the expansion valve (ref. 9, fig. 8, page 12):
The liquefied refrigerant is returned to a low pressure
and regains its initial temperature and pressure.
The heat pump is equipped with a controller which
controls the room temperature based on the outdoor
temperature measurement. The room thermostat
(option) provides a corrective action for the temperature
control.
The hydraulic unit can be optionally fitted with an
electrical backup or boiler connection which intervenes
to provide additional heat during the coldest periods.
• Control functions
- The heating circuit's flow temperature is controlled by
the temperature control.
- Depending on the heating flow temperature,
the outdoor unit's power is modulated by the "Inverter"
compressor.
- Control of the backup electrical heating.
- The daily timer program is used to set the periods
where the ambient temperature is comfortable or
reduced.
- Summer/winter time mode switchover is automatic.
- Management of the boiler backup*.
- Room sensor*: The room sensor provides a corrective
action for the temperature control.
- Control of a second heating circuit*.
- Domestic hot water*: Heating timer program.
- Managing cooling*.
*Where the heat pump is fitted with options and associated kits.
• Protective functions
- Anti-legionella cycle for domestic hot water.
- Frost protection: Frost protection cuts in if the heating
circuit's flow temperature falls below 5°C (provided
that the heat pump's electrical power supply is not
interrupted).
8
7
6
5
4
3
2
1
0
-20 -15 -10 -5 0 5 10 15 20 25
46
Dwelling heat loss (kW)
Outdoor temperature (°C)
Outdoor temperature (°C)
HP power
fig. 10 - Examples and operating limits
Max
authorised HP
start-up temp.
Water return temperature (°C)
HP only
Heat Pump
HP +
electrical
backup
Backup
alfea excellia A.I. / Installation / 1876 - EN
The hydraulic unit is fitted with an electrical backup or
boiler connection which intervenes to provide additional
heat during the coldest periods.

- 15 -
• Domestic hot water (DHW) operating principle
Two domestic hot water (DHW) temperatures can be
set: comfort and reduced.
The default DHW program is set to the comfort
temperature between 00:00 and 05:00 and between
14:30 and 17:00 and to the reduced temperature for the
rest of the day. This optimises electrical consumption
while ensuring comfortable heating and water
temperatures.
The reduced temperature setpoint may be useful to
avoid restarting the DHW too often and for too long
during the day.
The production of domestic hot water (DHW) is started
when the temperature in the tank drops to 7°C below
the temperature setpoint.
The heat pump produces the domestic hot water, which
is then additionally heated, if required, by the tank's
electrical backup or by the boiler. To ensure a DHW
setpoint over 55°C, the electrical backup heating must
be left on.
Depending on the setting, the comfort temperature can
be reached 24h/day or only at night or following the
DHW program.
If the contract signed with the energy provider includes
a day/night tariff, the electrical backup is subject to the
supplier’s power tariffand the comfort temperature may
only be reached at night.
If no particular contract has been signed, the comfort
temperature can be reached at any time, including
during the day.
The production of DHW takes priority over heating;
nevertheless the production of DHW is managed
by cycles that regulate the amount of time assigned
to heating and production of DHW in the event of
simultaneous demand.
Anti-legionella cycles can be programmed.
• Fan convectors with integrated control system
Do not use a room sensor in the area in question.
fig. 11 - Heat pump operating principle
Ev
Dt
Cn
Cp
1kW
COP 4
4kW
20 °C
PAC
PAC - Heating Pump
Ev - Evaporator
Cp - Compressor
Cn - Condenser
Dt - Expansion Valve
Air energy
Heat produced
Electrical
energy
consumed
alfea excellia A.I. / Installation / 1876 - EN

- 16 -
►
Installation of refrigeration
connections
Bend the pipes into position and make holes
for them through the floor or walls either with
their protective caps in place or after brazing.
Keep the protective caps in place or ends
brazed until the appliance is commissioned.
The outdoor unit must be connected to the hydraulic unit
only with brand new separately insulated copper
connections (refrigerant quality).
Maintain the same pipe diameters (fig. 19).
Observe the maximum and minimum distances
between the hydraulic unit and the outdoor unit
(fig. 19, page 24); the guarantee of performance and
the service lifespan of the system depend on this.
The minimum length of the refrigeration
connections for correct operation is 5 m.
The appliance's warranty will be void if it is operated
with refrigeration connections less than 5 m long
(tolerance +/- 10%).
If the refrigeration connections are exposed to
weathering or UV radiation and the insulation is not
resistant, protection must be provided.
Installation
fig. 12 - Example of recommendation
for layout of refrigeration connections
alfea excellia A.I. / Installation / 1876 - EN



- 18 -
►
Installation of the outdoor unit
▼
Installation precautions
The outdoor unit must only be installed
outside. If a shelter is required, it must have
broad openings on all 4 sides and installation
clearances must be observed.
• Choose the location of the appliance after discussion
with the client.
• We recommend choosing a site that is sunny but
sheltered from strong cold prevailing winds.
• The unit must be easily accessible for future installation
and maintenance work (page 20).
• Ensure that connections to the hydraulic unit can be
made easily.
• The outdoor unit is able to withstand bad weather but
avoid installing it in a position where it is likely to be
exposed to significant dirt or flowing water (under a
defective gutter for example).
• Water may flow out of the outdoor unit when it is
operating. Do not install the unit on a paved terrace;
choose a well-drained location (e.g. gravel or sand).
If installation is carried out in an area where the
temperature stays below 0°C for long periods, check
that the presence of ice does not present any danger.
A drainage pipe can also be connected to the outdoor
unit (see fig. 14).
• Nothing should obstruct the air circulation through the
evaporator and out from the fan (fig. 13).
• Keep the outdoor unit away from heat sources and
flammable products.
• Make sure that the unit does not disturb the
surrounding area or inhabitants (noise level, draught,
low temperature of the ejected air freezing the plants
in its path).
fig. 13 - Minimum installation clearances around the outdoor unit (all models)
D
E
G
G
B
D
B
G
A
A
H
C
C
E
E
G
A
F
J
C
CK
F
F
H
C
C
C
C
H
E
D
H
C
C
H
C
CDC
CH
E
A150 mm
B200 mm
C250 mm
D300 mm
E500 mm
F600 mm
G1000 mm
H1500 mm
J2000 mm
K3000 mm
alfea excellia A.I. / Installation / 1876 - EN

- 19 -
• The surface on which the appliance is installed must:
- Be permeable (soil, gravel, etc.).
- Support its weight easily.
- Allow a solid fastening base,
- Not transmit any vibration to the dwelling. Anti-vibratory
blocks are available as an option.
• The wall bracket cannot be used where it is likely to
transmit vibrations. Installing the unit on the ground is
preferred.
▼
Positioning Outdoor Unit
The outdoor unit must be raised at least 50 mm above
ground level. In areas prone to snow, this height should
be increased but should not exceed 1.5 m (figure 12).
- Fasten the outdoor unit by means of screws and
rubber tightening or toothed lock washers to prevent
them from coming loose.
In areas with heavy snowfall, if the intake and
outlet of the outdoor unit is blocked with snow,
heating may become difficult and a failure is
likely to occur.
Construct a canopy or place the unit on a high stand
(local configuration).
- Place the unit on a solid stand in order to minimise
impacts and vibrations.
- Do not place the unit directly on the ground as this will
cause problems.
▼
Condensate drain pipe
(see figure 12).
The outdoor unit can generate a large volume
of water (called condensate).
If the use of a drain pipe is necessary:
- Use the elbow provided (C) and connect a 16 mm-
diameter hose for draining the condensate.
- Use the plug(s) provided (B) to block the opening of
the condensate drain pan.
Allow for the condensate to flow away under the force of
gravity (waste water, rain water, gravel bed).
If installation is carried out in an area where the
temperature stays below 0°C for long periods,
equip the drain pipe with trace heating to
avoid it icing up. Trace heating must heat not
only the drain pipe but also the bottom of the
appliance's condensate collection tank.
fig. 14 - Installation of the outdoor unit
evacuation of condensates
H
* In areas with heavy snowfall,
(H) must be higher than the average snow layer.
B
BC
4 holes
(ø 12 mm)
alfea excellia A.I. / Installation / 1876 - EN

- 20 -
►
Installation of the hydraulic unit
▼
Installation precautions
• Choose the location of the appliance after discussion
with the client.
• The installation space should comply with current
regulations.
• To facilitate maintenance and allow access to the
various parts, we recommend that you provide
sufficient space all the way around the hydraulic unit.
350 mm
mini
800 mm
mini
1000 mm
300 mm
mini
• In accordance with EN 378-1 -2017 standard
(Refrigerating systems and heat pumps - Safety and
environmental requirements), the system's hydraulic
unit and all refrigeration connections passing through
inhabited areas must comply with the minimum room
volume requirements shown hereafter.
The minimum volume of a room (in m3) is calculated
using the formula: "fluid fill load" (in kg) / 0.39.
Alternatively, you must ensure that
- the location has natural ventilation through another
room where the combined volume of the two rooms is
greater than "liquid fill load" (in kg) / 0.39 kg/m³. The
opening between the two rooms must have a door
clearance of at least 1 cm.
- or that the location is mechanically ventilated.
Be careful not to bring flammable gas
near the heat pump during installation,
in particular when brazing is required.
The appliances are not fireproof and should
not therefore be installed in an explosive
environment.
To prevent risks of humidity in the exchanger,
it is pressurized with nitrogen.
118 mm
(S)
538 mm
mini
418 mm
mini
300 mm
mini
350 mm
mini
188 mm
fig. 15 - Mounting bracket
- To avoid condensation inside the condenser, remove
the refrigeration circuit caps only when making the
refrigeration connections.
- If the refrigeration connection is only performed at the
end of the installation, make sure that the refrigeration
circuit caps* remain in place and tight throughout the
installation.
* (Hydraulic unit side and outdoor unit side).
- After each maintenance operation on the refrigeration
circuit and before the final connection, take care to
put the caps back in position to avoid any pollution
of the refrigeration circuit (sealing with adhesive is
prohibited).
▼
Positioning the hydraulic unit
- Fix the bracket Ssecurely (4 screws and plugs) to a
strong, flat wall (not a light partition) ensuring that it is
correctly levelled.
- Hook the appliance onto its bracket S.
min.
min.
min. min.
min.
min.
min.
alfea excellia A.I. / Installation / 1876 - EN