Atlantic alfea extensa + User manual

Installation and
operating manual
intended for professionals
To be saved for
future consultation
Document n° 1734-10- ~ 19/05/2017
alféa extensa +
atlantic-comfort.com
FR NL DE EN IT
ES PT PL PT PT
Heat pump air/water
split 1 service
Outdoor unit Hydraulic unit
WOYA 060 LFCA 023650
WOYA 080 LFCA 023651
WOYA 100 LFTA
WOYG112LHT 023652
WOYG112LCTA
WOYG140LCTA

Contents
Package . . . . . . . . . . . . . . . . . . . . . . . . 4
Denitions . . . . . . . . . . . . . . . . . . . . . . . 4
Specications . . . . . . . . . . . . . . . . . . . . . 5
Description. . . . . . . . . . . . . . . . . . . . . . 10
Operating principle . . . . . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Regulation installation and maintenance conditions 13
Unpacking and reservations. . . . . . . . . . . . . 13
Receipt . . . . . . . . . . . . . . . . . . . . 13
Handling . . . . . . . . . . . . . . . . . . . 13
Containment of refrigerant circuits . . . . . . 13
Accessories provided . . . . . . . . . . . . . 13
Installation of refrigerant connections . . . . . . . . 14
Installation of the outdoor unit . . . . . . . . . . . . 15
Installation precautions . . . . . . . . . . . . 15
Outdoor unit positioning . . . . . . . . . . . 17
Condensate drain hose . . . . . . . . . . . . 17
Installing the hydraulic unit . . . . . . . . . . . . . 18
Installation precautions . . . . . . . . . . . . 18
Positioning the hydraulic unit . . . . . . . . . 18
"This device requires for its installation, the intervention of qualied personnel with a certicate of
capacity for handling refrigerants.
Description of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Refrigerant gas connection and lling the installation with gas . . . . . . 19
Rules and precautions. . . . . . . . . . . . . . . . 19
Shaping the refrigeration pipes . . . . . . . . . . . 19
Bending . . . . . . . . . . . . . . . . . . . . 19
Creating the arings . . . . . . . . . . . . . 19
Accessing the hydraulic unit’s
refrigerant connections . . . . . . . . . . . . 20
Check and connecting. . . . . . . . . . . . . . . . 22
Filling the installation with gas. . . . . . . . . . . . 24
Seal test . . . . . . . . . . . . . . . . . . . 25
Creating a vacuum . . . . . . . . . . . . . . 25
Filling the installation with gas . . . . . . . . 26
Final sealing test . . . . . . . . . . . . . . . 26
Additional charge . . . . . . . . . . . . . . . 27
Pump down operation (Refrigerant collecting
operation) outdoor unit . . . . . . . . . . . . 28
Hydraulic connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connecting to the Heating circuit . . . . . . . . . . 30
Rinsing out the installation . . . . . . . . . . 30
Connecting . . . . . . . . . . . . . . . . . . 30
Volume of the heating system . . . . . . . . 31
Filling and purging the installation . . . . . . . . . . 31
Heating circulation pump speed settings . . . . . . 32
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 2 -

Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
General . . . . . . . . . . . . . . . . . . . . . . . 36
Characteristic of the electrical supply. . . . . 36
General remarks on electrical connections . . 36
Overview of all the electrical connections . . 37
Cable section and protection rating . . . . . . . . . 37
Electrical connections on the outdoor unit side . . . 38
Electrical connections on the hydraulic unit side . . 40
Outdoor sensor . . . . . . . . . . . . . . . . . . . 43
Room thermostat and/or room control unit . . . . . 43
Installing a room sensor . . . . . . . . . . . 43
Installing a room control unit . . . . . . . . . 43
Fan convectors or dynamic radiators area . . 43
Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Conguring room thermostat . . . . . . . . . . . . 44 Conguring room control unit . . . . . . . . . . . . 45
Regulation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
User interface, Room control unit (option) and
Room thermostat (option) . . . . . . . . . . . . . . 46
Description of the display . . . . . . . . . . . . . . 48
Temperature control . . . . . . . . . . . . . . . . . 48
Set to . . . . . . . . . . . . . . . . . . . . . 48
Parametering the setting . . . . . . . . . . . . . . 50
General . . . . . . . . . . . . . . . . . . . . 50
Setting parameters . . . . . . . . . . . . . . 50
Recommended settings according to the heat
emitters installation . . . . . . . . . . . . . . 50
List of function lines
(settings, diagnosis, status). . . . . . . . . . 51
Overall hydraulic layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Electrical wiring diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Faults displayed on the hydraulic unit . . . . . . . . 74
Information display . . . . . . . . . . . . . . . . . 76
Faults displayed outdoor unit . . . . . . . . . . . . 77
Maintenance of the installation . . . . . . . . . . . . . . . . . . . . . . . . 78
Hydraulic checks . . . . . . . . . . . . . . . . . . 78
Checking the outdoor unit . . . . . . . . . . . . . . 78
Electrical checks. . . . . . . . . . . . . . . . . . . 78
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Emptying the hydraulic unit . . . . . . . . . . . . . 78 Distribution valve . . . . . . . . . . . . . . . . . . 78
Quick-start procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Start-up check-list . . . . . . . . . . . . . . . . . . 80
Before starting-up. . . . . . . . . . . . . . . 80
Starting-up . . . . . . . . . . . . . . . . . . 81
Settings sheet . . . . . . . . . . . . . . . . . . . . 82
Start-up data sheet . . . . . . . . . . . . . . . . . 83
ErP performance values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
ErP Denition . . . . . . . . . . . . . . . . . . . . 84
ErP specications . . . . . . . . . . . . . . . . . . 84
Package che . . . . . . . . . . . . . . . . . . . . 88
Instructions for the user . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Installation and operation manual "1734 - EN" - 3 -
Heat pump air/water split 1 service alféa extensa +

1.1 Package
• 1 package: Outdoor unit.
• 1 package: Hydraulic unit and outdoor sensor.
1.2 Denitions
- Split: The heat pump consists of two elements
(an outdoor unit for outdoor and a hydraulic unit for
inside the dwelling).
- Air/water: The surrounding air is the energy source.
This energy is transmitted to the water in the heating
circuit 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 heavy intensities on start-up.
-COP (coefcient of performance): This is the
relationship between the energy transmitted to the
heating circuit and consumed electrical energy.
1 Description of the unit
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 4 -
Packing list
Heat pump (HP) Outdoor unit Hydraulic unit
Models Code Réf. Code Réf. Code
alféa extensa + 5 522220 WOYA060LFCA 700171 MH extensa + 5 023650
alféa extensa + 6 522221 WOYA060LFCA 700171
MH extensa + 6-10 023651alféa extensa + 8 522222 WOYA080LFCA 700172
alféa extensa + 10 522225 WOYA100LFTA 700173
alféa extensa + 13 522226 WOYG112LHT 700197
MH extensa + 13-16 023652WOYG112LCTA 700174
alféa extensa + 16 522227 WOYG140LCTA 700175
• Swimming pool kit (code 074726).
• Cooling kit (code 075312).
• High ow rate circulating pump kit (code 074067)
for the installation of 1 circuit oor heating.
• Kit Pack PAC (code 602 231).
Scope of application
This heat pump provides:
- Heating in winter,
- The addition of electrical back-ups*, for extra heating
on the coldest days,
or
- Installation with boiler connection* as a supplementary
heating for the coldest days,
- Control of two heating circuits*,
- Production of domestic hot water* (provided that
combined with a DHW tank),
- Cooling in summer* (for oor heating-cooling system
or fan-convectors),
- Heating the swimming pool*.
* : These options require the use of additional kits
(see para " Required accessory" or "Optional equipment").
Required accessory (except with Boiler connection
kit).
• Electrical back-ups kit (code 073985).
Optional equipment
• 2nd circuit kit (code 074025)
for connecting 2 heating circuits.
• Regulation extension kit (code 075311)
to manage a 2nd heating circuit, swimming pool,
telephone modem etc...
• DHW kit (code 073991)
for connecting a DHW tank (with built-in electrical
back-ups).
• Boiler connection kit (code 073989)
for connecting a boiler to the heat pump.
• Room thermostat T55 (code 073951),
Room thermostat radio T58 (code 075313)
for correcting the ambient temperature.
• Room control unit T75 (code 073954),
Room control unit radio T78 (code 074061)
for correcting the ambient temperature and
programming the heat pump.
• Anti-vibration blocks (code 523574).
• White PVC oor support (code 809532) or
Black rubber oor support (code 809536).

1.3 Specications
1 Hydraulic unit : Sound pressure level in (x)m of the device, 1.5 m of the
ground, the open eld / Outdoor unit : Sound pressure level in (x)m of the
device,middle from the ground of the height of the outdoor unit , the open eld.
2 The sound power level is a laboratory measure of the emitted sound power
but contrary to the noise level, it doesn't correspond to the measure of the felt.
3 Refrigerant R410A (as per the standard EN 378.1).
4 Factory charge of refrigerant R410A.
5 Taking into account the possible additional load of refrigeration uid R410A
(see page 27).
Designation models alféa extensa + 5 6 8 10 13 16
Nominal heating performances (outdoor temperature/ initial temperature)
Heat output
+7 °C / +35 °C - Floor heating system kW 4.50 6.00 7.50 10.00 14.01 16.06
-7 °C / +35 °C - Floor heating system kW 4.10 4.60 5.70 7.40 9.45 12.93
+7 °C / +45 °C - Low temperature radiator kW 4.50 5.10 6.20 8.27 10.43 13.60
-7 °C / +45 °C - Low temperature radiator kW 4.10 4.45 5.05 7.40 9.25 11.20
+7 °C / +55 °C - Radiator kW 4.50 4.50 5.0 7.00 7.84 10.03
-7 °C / +55 °C - Radiator kW 3.70 3.85 5.20 7.00 7.29 8.65
Power absorbed
+7 °C / +35 °C - Floor heating system kW 1.00 1.41 1.84 2.49 3.50 4.37
-7 °C / +35 °C - Floor heating system kW 1.47 1.74 2.23 2.97 3.92 5.32
+7 °C / +45 °C - Low temperature radiator kW 1.31 1.50 1.87 2.53 3.19 4.38
-7 °C / +45 °C - Low temperature radiator kW 1.86 2.04 2.47 3.70 4.38 5.22
+7 °C / +55 °C - Radiator kW 1.79 1.79 1.94 2.86 3.25 4.01
-7 °C / +55 °C - Radiator kW 2.20 2.33 3.34 4.15 4.45 5.20
Coefcient of performance (COP) (+7°C / + 35°C) 4.52 4.26 4.08 4.02 4.00 3.68
Electrical characteristics
Supply voltage (50 HZ) V 230
Maximum current for appliance A11 12.5 17.5 18.5 22 25
Nominal current A 4.5 6.3 8.1 10.9 11.4 14.2
Max. current of the Heating electrical back-ups A13.05 / 26.1
Power of the Heating electrical back-ups kW ajustable 3 or 6 kW
Real power absorbed by the fan W 49 49 49 100 2 x 100 2 x 100
Real power absorbed by the circulation pump W 24 24 24 24 39.5 39.5
Maximum power absorption by the outdoor unit W 2530 2875 4025 4255 5060 5750
Hydraulic circuit
Maximum operating pressure Heating MPa (bar) 0.3 (3)
Hydraulic system ow rate 4°C<Δt<8°C
(nominal conditions) mini / maxi l/h 490 / 980 650 / 1300 810 / 1620 1080 / 2160 1380 / 2760 1720 / 3450
Various
Weight of outdoor unit Kg 41 41 42 60 92 92
Noise level at 1 m 1 (hydraulic unit) dB (A) 39
Sound power level according to EN 12102 2 (hydraulic unit) dB (A) 46
Noise level at 1 m 1 (outdoor unit) dB (A) 41 41 47 47 47 48
Sound power level according to EN 12102 2 (outdoor unit) dB (A) 63 63 69 69 69 70
Weight of hydraulic unit (empty / full of water) Kg 42 / 58
Water capacity of the hydraulic unit l 16
Heating system operating limits
Outdoor temperature mini / maxi °C -20/+35 -20/+35 -20/+35 -20/+35 -25/+35 -25/+35
Initial max. heating water temperature
Floor heating system °C 45
Initial max. heating water temperature
Low temperature radiator °C 55 55 55 55 55 55
Flow min. heating water temperatur °C 8
Refrigeration circuit
Diameter of "Gas" pipes Inches 1/2 1/2 5/8 5/8 5/8 5/8
Diameter of "Liquid" pipes Inches 1/4 1/4 1/4 3/8 3/8 3/8
Factory charge of refrigerant R410A 3g 1100 1100 1400 1800 2500 2500
Maximum operating pressure MPa (bar) 4.15 (41.5)
Minimum / Maximum length of pipes 4m 5 /15 5 /15 5 /15 5 /15 5 /15 5 /15
Maximum length of pipes 5m30 30 30 30 20 20
Maximum level difference m20 20 20 20 15 15
Installation and operation manual "1734 - EN" - 5 -
Heat pump air/water split 1 service alféa extensa +

gure 2 - Dimensions in mm
650
AIR
AIR
370
830
21
196
99
9
900 77
12
33031
147
170
400
540
4 holes Ø11
62
790
290
18 23
209
352
620
320
16
110
175
AIR
AIR
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 6 -
"Outdoor unit,
Models extensa + 5, 6 & 8
"Outdoor unit,
Model extensa + 10

450
800
843
97 98 457
81
479
Heating return
ø M 26x34
Heating ow
ø M 26x34
Front view Side view
"Hydraulic unit
gure 4 - Dimensions in mm
Installation and operation manual "1734 - EN" - 7 -
Heat pump air/water split 1 service alféa extensa +
"Outdoor unit,
Models extensa + 13 & 16
31 77900330 12
9
400
650
21
1290
151
170
196
370
99
3/8
5/8
Air
Overflow hole (Ø 20) 4Ø12Holes
Top view
Front view
Sight of lower part
Side view
Air
Air
gure 3 - Dimensions in mm

gure 5 - Hydraulic pressures and ow rates available (models extensa + 5, 6, 8 & 10)
-50
1000
10000
43907
2490
338
-25025 50 75 °C
°C
0
2500
5000
7500
10000
12500
15000
17500
20000
22500
25000
27500
30000
32500
0102030405060708090 100
B3977
Outdoor sensor QAC34 Heat pump return sensor
Heat pump ow sensor
gure 6 - Ohmic values of the sensors (hydraulic unit)
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
11,5 20,50
1
3
55
77
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
11,5 20,50
1
3
55
77
Variable pressure Constant pressure
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 8 -
gure 7 - Hydraulic pressures and ow rates available (models extensa + 13 & 16)
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
11,5 20,50
0 0,5 1 1,5 2 m
3
/h
1
3
55
77
88
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
11,5 20,50
0 0,5 1 1,5 2 m
3
/h
1
3
55
77
88
Variable pressure Constante pressure

gure 8 - Ohmic values of the sensors (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
Temperature °C
Ohmic value (kΩ)
Installation and operation manual "1734 - EN" - 9 -
Heat pump air/water split 1 service alféa extensa +

1.4 Description
gure 9 - Outdoor unit components
1
234
6
5
8
10
9
1211
7
1
234
6
5
10
9
1211
7
8
Legend :
1 - Low-noise, high-output fan.
2 - Electric variable speed "Inverter" motor.
3 - Control lights and buttons.
4 - Connection terminal blocks
(power and interconnection).
5 - Refrigerant accumulator bottle.
6 - Cycle reversing valve.
7 - Anti-corrosion treated bodywork.
8 - Electronic expansion valve.
9 - Noise and temperature insulated
"Inverter" compressor.
10 - Refrigeration connection valves
(ared connectors) with protective caps.
11 - Holding tank with condensate drain hole.
12 - High-performance exchange surface evaporator ;
anti-corrosion treated hydrophilic aluminium ns and
grooved copper tubes.
13 - "Inverter" control unit.
14 - Solenoid valve for liquid injection.
15 - Electric expansion valve for liquid injection.
"Models extensa + 5 & 6 "Model extensa + 8
1
23
4
6
5
8
10
9
1211
7
"Model extensa + 10 "Models extensa + 13 & 16
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
3
4
5
6
7
8
14
15
9
10
11
12
2
1
13
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 10 -

1.5 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 uid (R410A) circulates.
- In the evaporator (ref. 12, gure 9, page 10) :
The energy is taken from the surrounding air and is
transmitted to the refrigerant. Because it has a low
boiling point, it changes from the liquid state to the
vapour state, even in cold weather (down to -20°C
outdoor temperature).
- In the compressor (ref. 9, gure 9, page 10) :
The vaporised refrigerant brought to high pressure
and takes on more calories.
- In the condenser (ref. 14, gure 10, page 11) : The
energy in the refrigerant is transmitted to the heating
circuit. The refrigerant returns to liquid state.
- In the expansion valve (ref. 8, gure 9, page 10) :
The liqueed refrigerant is brought back to low pressure
and returns to its initial temperature and pressure.
The heat pump is equipped with a controller, which
controls the room temperature based on the outdoor
temperature measurement and governed by the
temperature control. The room thermostat (option)
provides a corrective action for the temperature control.
The hydraulic unit can be optionally tted with an
electrical back-up system or boiler connection which
starts up in order to provide addtional heating during the
coldest periods.
• Regulation functions
- The heating circuit's initial temperature is controlled by
the temperature control.
- The power of the outdoor unit is modulated according
to ow heating temperature via the "Inverter"
compressor.
- Control of the electrical back-up heating (option).
- The daily timer program enables you to dene
the periods for comfortable or reduced ambient
temperature.
- Summer/winter mode switchover is automatic.
- Control of the supplementary boiler* (options).
- The room thermostat (option)*: provides a corrective
action for the temperature control.
- Control of a second heating circuit*.
- Domestic hot water*: Heating time program, control of
the operation of the DHW circulation pump.
- Managing the cooling*.
- Control of swimming pool heating*.
* If the heat pump is equipped with optional equipment and the
associated kits.
• Protection functions
- Anti-legionella cycle for domestic hot water.
-Frost protection: Frost protection cuts in if the low-
temperature point of the heating circuit falls below 5°C
(provided that the heat pump's electrical power supply
is not interrupted).
gure 10 - Hydraulic unit components
Legend :
1 - Electric box.
2 - Regulator / User interface.
3 - Start/stop switch.
4 - Heating circulation pump.
5 - Heating ow.
6 - Gas refrigeration connection.
7 - Liquid refrigeration connection.
8 - Heating return.
9 - Drain valve.
10 - Safety valve.
11 - Manometer.
12 - Manual drainer.
13 - Expansion vessel.
14 - Condenser.
2
1
4 3 11
7
6
58
9
10
13
14
12
Front view Side view
Installation and operation manual "1734 - EN" - 11 -
Heat pump air/water split 1 service alféa extensa +
.
The heat pump must be equipped with an electrical
back-up system or boiler connection, which is designed
to provide additional heat during the coldest periods.

• Domestic hot water (DHW) operating principle
Two domestic hot water (DHW) temperatures can be
parametered: nominal temperature (line 1610 to 55°C)
and reduced temperature (line 1612 to 40°C).
The default heat pump program (line 560, 561 and 562)
is set for nominal temperature from 0:00 to 5:00 and
from 14:30 to 17:00 and for reduced temperature for the
rest of the day. This optimizes electrical consumption
while ensuring comfortable availability of hot water.
Setting for reduced temperature can be useful to prevent
the DHW from switching on too often and for too long
during the day.
The production of domestic hot water (DHW) is triggered
when the temperature in the tank falls 7°C (setting from
line 5024) below the set temperature.
The heat pump produces the domestic hot water, which
is then additively heated, if required, by electrical back-
up heating inside the tank. To ensure a DHW setting
over 45°C, the electrical back-up heating or the boiler
must be left on.
Depending on how the parameter (1620) is set, nominal
temperature can be reached 24h/day or only at night or
depending on the heat pump program.
If the contract concluded with the energy provider
includes a subscription to day/night tariff, the electrical
backup is subordinate to the supplier’s power tariff and
the comfort temperature may only be reached at night.
If no particular contract is concluded, 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 controlled by
cycles that control the times assigned to the heating
and the production of DHW in the event of simultaneous
demand.
A function to switch from "reduced" to "nominal"
is provided on the front of the user interface.
(see ref. 5, gure 42, page 46).
Anti-legionella cycles can be programmed.
• Fan convectors with integrated control system
Do not use a room sensor in the area.
gure 11 - Heat pump operating principle
Ev
Dt
Cn
Cp
1kW
COP 4
4kW
20 °C
PAC
HP - Heat pump
Ev - Evaporator
Cp - Compressor
Cn - Condenser
Dt - Expansion valve
Energy from
the air
Heat produced
Electrical
energy
consumed
HP
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 12 -

2.1 Regulation installation
and maintenance conditions
The appliance must be installed and the maintained
by an approved professional in accordance with the
prevailing regulations and code of practice, in particular:
- The legislation on the handling of refrigerants.
- Heating installation with oor heating system.
- Low voltage electrical installations - Rules.
2.2 Unpacking and reservations
2.2.1 Receipt
Carefully check, in the carrier's presence, the general
appearance of the appliances and check that the
outdoor unit is not laid on its side or back.
In the case of any dispute, state any appropriate
reservations to the carrier in writing within 48 hours and
send a copy of this letter to the After-Sales service.
2.2.2 Handling
The outdoor unit should not be laid on its side or back
during transport.
If not kept upright during transport, the appliance could
be damaged through displacement of the refrigerant
and deformation of the compressor suspension.
Any damage caused by transportation of the unit lying
down is not covered by the warranty.
If necessary the outdoor unit may be tilted only during
manual handling (to go through a door or use a staircase).
This operation must be conducted very carefully and
the appliance must be immediately restored to upright
position.
2.2.3 Containment of refrigerant circuits
All refrigerant circuits fear contamination from dust and
moisture. If such pollutants introduced into refrigeration
circuit, they can contribute to degrade the reliability of
the heat pump.
"It’s necessary to ensure correct containment
connections and refrigerant circuits (hydraulic
unit, outdoor unit).
"In case of subsequent failure and expertise, the
nding of the presence of moisture or foreign
objects into the compressor oil would lead to
systematic exclusion of warranty.
- Check upon receipt that the ttings and the refrigeration
circuit caps mounted on hydraulic unit and outdoor unit
are properly seated and locked (impossible to loosen
bare hands). If this is not the case, tighten them using
an against wrench.
- Check also that the refrigerant connections are sealed
(plastic caps or tubes crushed at the ends and soldered).
If the caps must be removed during installation (tubes
cut by example), put back them as soon as possible.
2.2.4 Accessories provided
Accessories provided with the outdoor unit (gure 12).
Accessories provided with the hydraulic unit (gure 13).
gure 12 - Accessories provided with the outdoor unit
8
5 6 7
5Bracket To secure the hydraulic
model
6Outdoor sensor To monitor the outdoor
temp
7* Adaptater 1/2" - 5/8"
and/or 1/4" - 3/8" To connect the ared
connection and the
hydraulic model
8* Nut 1/2" and/or 1/4"
* models extensa + 5, 6 & 8 only
gure 13 - Accessories provided with the hydraulic unit
1* Elbow
For draining away the
condensates
2*
Plug (x 2)
(Depending on the
model)
* models extensa + 10, 13 & 16 only.
1* 2*
3**
2 Installation
Installation and operation manual "1734 - EN" - 13 -
Heat pump air/water split 1 service alféa extensa +

2.3 Installation of refrigerant connections
" Manipulate the pipes and made their
crossing (slab or wall) with protective caps in
place or after brazing.
"Keep the protective caps or ends soldered to
the commissioning of the appliance.
The outdoor unit must be connected to the hydraulic
unit only with new copper pipes and connections
(Refrigerant quality), insulated separately.
Respect the pipes diameters (gure 21, page 21).
Observe the maximum and minimum distances between
the hydraulic unit and the outdoor unit (gure 21, page 21)
the guarantee of the performances and the system's
service life depend on this.
The minimum length of the refrigerant connections
is 5 m for correct operation.
The appliance will be excluded from guarantee if it is
used with refrigerant connections less than 5 m long
(tolerance +/- 10%).
If the refrigerant connections are exposed to weathering
or UV- and the insulation is not strong, it is necessary to
provide protection.
gure 14 - Recommended example of
refrigerant connections disposition
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 14 -

600 mm
or more
100 mm
or more
250 mm or more
(Service space)
100 mm
or more
300 mm
or more
600 mm or more
250 mm
or more
250 mm
or more 300 mm
or more
600 mm or more
100 mm
or more
100 mm
or more
300 mm or more
(Service space)
300 mm
or more
2.4 Installation of the outdoor unit
2.4.1 Installation precautions
"The outdoor unit must only be installed outdoor
(outdoors). If a shelter is required, it must have
broad openings on the 4 walls and observe the
installation clearances (gure 15).
• Choose the location of the appliance after discussion
with the client.
• Choose a site that is preferably sunny and sheltered
from strong cold predominant winds (mistral,
tramontana, etc…).
• The unit must be easily accessible for future installation
and maintenance work (gure 15).
• Ensure that it is possible to make the connections to
the hydraulic unit easily.
• The outdoor unit is able to withstand bad weather but
avoid installing in a position where it is likely to be
exposed to signicant dirt or owing water (under a
defective gutter for example).
• Water may drain away from the outdoor unit when it
is operating. Do not install the appliance on a paved
terrace; choose a well-drained place (e.g. gravel
or sand). If the installation is in an area where the
temperature can be lower than 0°C for a long period,
check that the presence of ice does not present any
danger. A drainage pipe can also be connected to the
outdoor unit (see gure 17, page 17).
• Nothing should obstruct the air circulation through the
evaporator and from the fan (gure 15).
• Keep the outdoor unit away from heat sources and
inammable products.
• Make sure the appliance not disturb the surrounding
area or users (noise level, draught generated, low
temperature of the air being blown out, with the risk of
freezing plants in its path).
gure 15 - Minimum installation clearances around outdoor unit (models extensa + 5, 6, 8 & 10)
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Installation and operation manual "1734 - EN" - 15 -
Heat pump air/water split 1 service alféa extensa +
"Models extensa + 5, 6 & 8
"Model extensa + 10

• The surface on which the appliance is installed must:
- be permeable (soil, gravel, etc),
- support its weight easily,
- provide a solid xing and
- not transmit any vibration to the dwelling.
(Anti-vibratory blocks are available as an option).
• The wall bracket can not be used in conditions likely to
transmit vibrations, ground position is preferred.
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 16 -
gure 16 - Minimum installation clearances around outdoor unit (models extensa + 13 & 16)
1000
150
600
2000
or more 250
or more
250 3000
or more
600
600
1500
250
or more
250
250
250
or more
1500
500
Max.300
1500
300
Max. 500
1000 1500
250
250
500
Max. 500
1000
or more
200
300
200
1000
or more
150
150
250
250
or more 1500
or more
250
250
or more
300
250
250
or more 1500
or more
500
Minimum Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
Minimum
"Models extensa + 13 & 16

2.4.2 Outdoor unit positioning
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 (gure 17).
- Fasten the outdoor unit by means of screws and
rubber tightening or toothed lock washers to avoid
their coming loose.
"Warning
In the area with heavy snowfall, if the intake and outlet
of outdoor unit is blocked with snow, it might become
difcult to get warm and it is likely to cause of the
breakdown.
Please construct a canopy and a pedestral or place the
unit on high stand (local congured).
- Set the unit on a strong stand, such as one made of
concrete blocks to minimize shock and vibration.
-Do not set the unit directly on the ground because it will
cause trouble.
2.4.3 Condensate drain hose
"The outdoor unit can generate a large volume of
water (called condensate).
(see gure 17).
If the use of a discharge pipe is imperative:
- Instal the condensate drain pan (option / code 074008)
models extensa + 5, 6 and 8 only.
- Use the elbow provided (C) to connect a 16mm-
diameter hose for draining away the condensate.
- Use the stopper or stoppers provided (B) to block the
opening of the condensate tank.
Allow for the condensate to ow away under the force of
gravity (waste water, rain water, gravel bed).
"If the installation is made in an area where
the temperature can be lower than 0°C for
a long period, provide the drain pipe with a
trace resistance to avoid it icing up. The trace
resistance must heat not only the pipe but
also the bottom of the appliance's condensate
collection tank.
gure 17 - Positioning of the outdoor unit,
draining away the condensate
H
H
C
* In regions subject to frequent snow,
(H) must be highter than the average snow layer
B
BC
Installation and operation manual "1734 - EN" - 17 -
Heat pump air/water split 1 service alféa extensa +
"Models extensa + 10, 13 & 16 only

2.5 Installing the hydraulic unit
2.5.1 Installation precautions
• Choose the location of the appliance after discussion
with the client.
• The room in which the appliance operates must
comply with the prevailing regulations.
• To facilitate maintenance and to allow access to the
various components, we recommend that you provide
sufcient space all around the hydraulic unit.
350 mm
mini
1000 mm
300 mm
mini
• According to standard EN 378-1 (safety
requirements and HP environment), the room
where the HP is installed shall have a volume
higher than: Unit refrigerant load in kg / 0.44kg/m3.
If not, it must be ensured that:
- Whether the room is mechanically ventilated,
- Or room door is remain opened when the installer
works on the HP.
• Be careful not to bring inammable gas near to the
heat pump during its installation, in particular when
it requires brazing. The appliances are not reproof
and should therefore not be installed in a potentially
explosive atmosphere.
- To avoid condensation inside the condenser, remove
the refrigerant circuit caps only when completing the
refrigerant connections.
- If the refrigerant connection only occurs at the end of
the installation, be sure that the refrigerant circuit caps*
remain in place and tight throughout the installation
duration.
* (Hydraulic unit side and outdoor unit side).
- After every intervention on the refrigeration circuit and
before nal connection, take care to replace the plugs
in order to avoid any pollution from the refrigeration
circuit (The sealing with tape is prohibited).
(S)
1
2
118 mm
(S)
538 mm
mini
418 mm
mini
300 mm
mini
350 mm
mini
188 mm
gure 18 - Mounting bracket
2.5.2 Positioning the hydraulic unit
- Fix the support solidly (4 screws and plugs) to a at,
hard-wearing wall (not a light partition) ensuring that it
is correctly levelled.
- Hook the appliance onto its support.
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 18 -

"This appliance uses refrigerant R410A.
Comply with the legislation for handling refrigerants.
3.1 Rules and precautions
"Connections must be made the day of the lling
the installation with gas (see para. 3.4, page 24).
• Minimum necessary tools
- Set of manometers (Manifold) with hoses exclusively
reserved for HFCs (Hydrouorocarbons).
- Vacuum gauge whith isolation valves.
- Vacuum pump specially for HFCs (use of a traditional
vacuum pump is authorized if, and only if, it is tted
with a non-return valve on the suction side).
- Flaring tool, Pipe-cutter, Deburring tool, Wrenches.
-Refrigerant gas leak detector certied (sensitivity 5g/year).
"Provision on using tools that have been in
contact with HCFCs (R22 for example) or CFCs.
"The manufacturer declines any liability with
regard to the guarantee if the above instructions
are not observed.
• Flared connections
"Lubrication with mineral oil (for R12, R22)
is forbidden.
- Only lubricate with polyolester refrigeration oil (POE).
If POE is not available, t without lubrication.
Coat the ared surface
with POE refrigeration oil.
Do not use mineral oil.
• Brazing on the refrigeration circuit (if necessary)
- Silver brazing (40% minimum recommended).
- Brazing only under dry nitrogen internal ux.
• Remarks
-After every intervention on the refrigeration circuit and
before nal connection, take care to replace the plugs in
order to avoid any pollution from the refrigeration circuit.
- To eliminate any lings in the pipes, use dry nitrogen
to avoid introducing any humidity that may adversely
affect the appliances operation. In general, take every
precaution to avoid humidity penetrating into the
appliance.
- Proceed to insulate the "Gas" and "Liquid" pipes to
avoid any condensation. Use pipe insulators resistant
to temperatures over 90°C. In addition if the humidity
level in areas where the refrigeration pipes are
installed is expected to exceed 70%, protect the pipes
with pipe insulators. Use an insulating material thicker
than 15mm if the humidity level is 70~80%, and an
insulating material thicker than 20mm if the humidity
exceeds 80%. If the recommended thicknesses are
not observed under the conditions described above,
condensation will form on the surface of the insulation
material. Lastly, take care to use pipe insulators
whose thermal conductivity is 0.045 W/mK or less
when the temperature is 20°C. The insulation must be
impermeable to resist the passage of steam during the
defrosting cycles (breglass wool is prohibited).
3.2 Shaping the refrigeration pipes
3.2.1 Bending
The refrigeration pipes must be shaped only on a
bending machine or with a bending spring in order to
avoid any risk of crushing or breaking them.
"Warning !
• Remove the insulation material locally to bend the
pipes.
• Do not bend the copper to any angle over 90°.
• Never bend pipes more than 3 times in the same
position otherwise traces of fracturing may appear
(from strain-hardening the metal).
3.2.2 Creating the arings
- Cut the pipe to an appropriate length with a pipe-cutter
without deforming it.
- Carefully deburr it, holding the pipe towards the bottom
to avoid introducing lings into the pipe.
- Remove the ared connection nut situated on the
valve to be connected and slip the pipe into the nut.
- Proceed to are, letting the pipe overow the aring
tool.
- After aring, check the condition of the working
radius (L). This must not show any scratch or trace of
any fracturing. Also check the dimension (B).
3 Refrigerant gas connection
and lling the installation with gas
gure 19 - Flaring for are connections
Flaring tool
Hose
Flare
nut
B
L
C
ø Hose
dimensions in mm
L B 0/-0.4 C
6.35 (1/4") 1.8 to 2 9.1 17
9.52 (3/8") 2.5 to 2.7 13.2 22
12.7 (1/2") 2.6 to 2.9 16.6 26
15.88 (5/8") 2.9 to 3.1 19.7 29
Installation and operation manual "1734 - EN" - 19 -
Heat pump air/water split 1 service alféa extensa +

3.2.3 Accessing the hydraulic unit’s
refrigerant connections
- Remove the front panel (2 screws A).
- Remove the left-hand panel (2 screws B).
1
A
1
A
2
gure 20 - Removing the casing
4
3
B
3
B
Installation and operation manual "1734 - EN"
Heat pump air/water split 1 service alféa extensa +
- 20 -