Atlantic alféa excellia duo 11, alféa excellia duo 16, alféa excellia duo 14, WOYK160LCT, MH excellia duo Installation And Operating Manual

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alféa excellia duo

Document n° 1572-4 ~ 12/12/2013

FR NL DE EN IT

Heat pump air/water

split 2 services

Outdoor unit Hydraulic unit

WOYG112LCT 023167

WOYG140LCT

WOYK112LCT

WOYK140LCT

WOYK160LCT

ES PT PL PT PT

Installation and

operating manual

intended for professionals

To be saved for

future consultation

atlantic-comfort.com

Subject to modications without notice.

Non contractual document.

Heat pump air/water split 2 services alféa excellia duo

" This device requires for its installation, the intervention of qualied personnel with a certicate of

capacity for handling refrigerants.

Contents

Description of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Package . . . . . . . . . . . . . . . . . . . . . . . . 4

Denitions . . . . . . . . . . . . . . . . . . . . . . . 4

Specications . . . . . . . . . . . . . . . . . . . . . 5

Description. . . . . . . . . . . . . . . . . . . . . . . 9

Operating principle . . . . . . . . . . . . . . . . . 10

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Regulation installation and maintenance conditions . . 12

Unpacking and reservations . . . . . . . . . . . . . 12

Receipt . . . . . . . . . . . . . . . . . . . . 12

Handling . . . . . . . . . . . . . . . . . . . 12

Containment of refrigerant circuits . . . . . . 12

Accessories provided . . . . . . . . . . . . . 12

Installation position . . . . . . . . . . . . . . . . . 13

Installation of the outdoor unit . . . . . . . . . . . . 13

Installation precautions . . . . . . . . . . . . 13

Outdoor unit positioning . . . . . . . . . . . 14

Condensate drain hose . . . . . . . . . . . . 14

Installing the hydraulic unit . . . . . . . . . . . . . 15

Installation precautions . . . . . . . . . . . . 15

Refrigeration connections . . . . . . . . . . . . . . 16

Rules and precautions . . . . . . . . . . . . 16

Refrigeration connections. . . . . . . . . . . 17

Creating the arings . . . . . . . . . . . . . 17

Shaping the refrigeration pipes . . . . . . . . 17

Connecting the ared connections . . . . . . 17

Filling the installation with gas . . . . . . . . . . . . 19

Commissioning procedure . . . . . . . . . . 19

Sealing test . . . . . . . . . . . . . . . . . . 20

Additional charge . . . . . . . . . . . . . . . 21

Pump down operation (Refrigerant collecting

operation) outdoor unit . . . . . . . . . . . . 21

Hydraulic connecting . . . . . . . . . . . . . . . . 22

General . . . . . . . . . . . . . . . . . . . . 22

Connecting to the DHW circuit . . . . . . . . 23

Rinsing out the installation . . . . . . . . . . 24

Filling and purging the installation . . . . . . 24

Connecting the Fan convector

or dynamic radiator circuit . . . . . . . . . . 24

Thermal insulation . . . . . . . . . . . . . . . . . . 25

Heating circulation pump speed settings . . . . . . 26

Electrical connections . . . . . . . . . . . . . . . . 28

Characteristic of the electrical supply . . . . . 28

General remarks on electrical connections . . 28

Overview of all the electrical connections . . 29

Cable section and protection rating . . . . . . 29

Electrical connections

on the single phase outdoor unit side. . . . . 30

Electrical connections

on the 3- phase outdoor unit side . . . . . . . 31

Electrical connections

on the hydraulic unit side . . . . . . . . . . . 32

Outdoor sensor . . . . . . . . . . . . . . . . . . . 36

Room thermostat and/or room control unit . . . . . 36

Installing a room sensor . . . . . . . . . . . 36

Installing a room control unit . . . . . . . . . 36

Fan convectors or dynamic radiators area . . 36

Commissioning . . . . . . . . . . . . . . . . . . . 36

Conguring room thermostat . . . . . . . . . . . . 37

Conguring room control unit . . . . . . . . . . . . 37

- 2 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

Regulation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

User interface, Room control unit (option) and

Room thermostat (option) . . . . . . . . . . . . . . 38

Description of the display . . . . . . . . . . . . . . 40

Temperature control . . . . . . . . . . . . . . . . . 40

Set to . . . . . . . . . . . . . . . . . . . . . 40

Parametering the setting . . . . . . . . . . . . . . 42

General . . . . . . . . . . . . . . . . . . . . 42

Setting parameters . . . . . . . . . . . . . . 42

Recommended settings according

to the heat emitters installation . . . . . . . . 42

List of function lines

(settings, diagnosis, status) . . . . . . . . . . 43

Overall hydraulic layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Electrical wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Faults displayed on the hydraulic unit . . . . . . . . 62

Information display . . . . . . . . . . . . . . . . . 63

Faults displayed on the single phase outdoor unit . 64

Faults displayed on the 3-phase outdoor unit . . . . 65

Maintenance of the installation . . . . . . . . . . . . . . . . . . . . . . . . 66

Hydraulic checks . . . . . . . . . . . . . . . . . . 66

Maintenance of the DHW tank. . . . . . . . . . . . 66

Emptying the hot water tank . . . . . . . . . 66

Descaling . . . . . . . . . . . . . . . . . . . 66

Checking the outdoor unit . . . . . . . . . . . . . . 66

Electrical checks . . . . . . . . . . . . . . . . . . . 66

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Emptying the hydraulic unit . . . . . . . . . . . . . 67

Distribution valve . . . . . . . . . . . . . . . . . . 67

ACI check . . . . . . . . . . . . . . . . . . . . . . 67

Instructions for the user . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Quick-start procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Start-up check-list . . . . . . . . . . . . . . . . . . 68

Before starting-up . . . . . . . . . . . . . . . 68

Starting-up . . . . . . . . . . . . . . . . . . 69

Installation and operating manual "1572 - EN" - 3 -

Settings sheet . . . . . . . . . . . . . . . . . . . . 70

Start-up data sheet . . . . . . . . . . . . . . . . . 71

Heat pump air/water split 2 services alféa excellia duo

Packing list

Heat pump (HP) Outdoor unit Hydraulic unit

Model Code Model Code Model Code

alféa excellia duo 11 Single phase 522676 WOYG112LCT 700117

alféa excellia duo 14 Single phase 522677 WOYG140LCT 700142

alféa excellia duo 11 3-phase 522684 WOYK112LCT 700118

alféa excellia duo 14 3-phase 522685 WOYK140LCT 700143

alféa excellia duo 16 3-phase 522686 WOYK160LCT 700163

excellia duo

023167

Optional equipment

• 2nd circuit kit (code 074011) for connecting 2 heating circuits.

• Regulation extension kit (code 075311) to manage a 2nd heating circuit, swimming pool etc...

• Boiler connection kit (code 073990) for connecting a boiler to the heat pump.

• Single phase electrical back-ups kit (code 073985) or 3-phase electrical back-ups kit (réf. 073987).

• Room thermostat T37 (code 075308), 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).

• Swimming pool kit (code 074726).

• Cooling kit (code 075312).

• High ow rate circulating pump kit (code 074077)

for the installation of 1 circuit oor heating (with model > 13 kW).

Scope of application

This heat pump provides:

- Heating in winter,

- Control of two heating circuits*,

- Production of domestic hot water.

- Installation with boiler connection* as a

supplementary heating for the coldest days. or

- the addition of electrical back-ups*, for extra heating on the coldest days.

- 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 "Optional equipment").

1 Description of the unit

1.1 Package

• 1 package: Outdoor unit.

• 1 package: Hydraulic unit and outdoor sensor.

- 4 -

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 singlephase 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 electrical energy consumed.

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

1.3 Specications

Designation model alfea excellia duo

Single phase

Nominal heating performances (outdoor temperature/ initial temperature)

Heat output

+7 °C / +35 °C - Floor heating system kW 10,80 13,50 10,80 13,00 15,17

-7 °C / +35 °C - Floor heating system kW 10,38 11,54 10,38 12,69 12,98

+7 °C / +45 °C - Low temperature radiator kW 9,05 11,32 9,90 12,34 12,75

-7 °C / +45 °C - Low temperature radiator kW 9,16 11,45 9,98 10,74 12,95

+7 °C / +55 °C - Radiator kW 7,59 9,48 9,29 10,81 12,71

-7 °C / +55 °C - Radiator kW 7,57 9,20 9,27 10,02 11,99

Power absorbed

+7 °C / +35 °C - Floor heating system kW 2,54 3,23 2,51 3,11 3,70

-7 °C / +35 °C - Floor heating system kW 4,32 5,13 4,28 5,13 5,40

+7 °C / +45 °C - Low temperature radiator kW 2,82 3,69 2,99 3,81 3,97

-7 °C / +45 °C - Low temperature radiator kW 4,58 5,92 4,63 5,14 6,37

+7 °C / +55 °C - Radiator kW 3,07 3,95 3,52 4,49 5,04

-7 °C / +55 °C - Radiator kW 4,57 5,08 5,09 5,64 6,89

Coefcient of performance (COP) (+7 °C / + 35 °C) 4,25 4,18 4,30 4,18 4,10

Electrical characteristics

Supply 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 electrical back-ups A 13,05 / 26,1 3x13

Power of the Heating electrical back-ups (option) kW ajustable 3 or 6 kW (Single phase) 9 kW (3-phase)

Real power absorbed by the fan W 2x100 2x104

Real power absorbed by the circulation pump W 37,5

Maximum power absorption by the outdoor unit W 5060 5750 5865 6555 7245

Electrical back-up power DHW W 1500

Hydraulic circuit

Maximum operating pressure Heating bar 3

Maximum operating pressure Domestic hot water tank bar 10

Hydraulic system ow rate 4°C<Δt<8°C (nominal conditions) l/h 1170 / 2340 1460 / 2920 1170 / 2340 1460 / 2920 1650 / 3290

Various

Weight of outdoor unit kg 92 99

Weight of hydraulic unit (empty / full of water) kg 146 / 350

Water capacity of the hydraulic unit / of the domestic tank l 24 / 190

Noise level at 1 m 1 (hydraulic unit) dB 39

Sound power level according to EN 12102 2 (hydraulic unit) dB 46

Noise level at 1 m 1 (outdoor unit) dB 42 43 39 41 42

Sound power level according to EN 12102 2 (outdoor unit) dB 69 70 66 68 69

Heating system operating limits

Outdoor temperature mini / maxi °C -25 / +35

Initial max. heating water temperature Floor heating system °C 45

Initial max. heating water temperature Low temperature radiator °C 60

Refrigeration circuit

Diameter of "Gas" pipes inches 5/8

Diameter of "Liquid" pipes inches 3/8

Factory charge of refrigerant R410A 3 g 2500

Maximum operating pressure bar 41,5

Minimum / Maximum length of pipes

m 5 / 15

Maximum length of pipes 5 / Maximum level difference m 20 / 20

Sound pressure level in (x)m of the device, 1,5m of the ground,

the open eld.

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.

Refrigerant R410A (as per the standard EN 378.1).

Factory charge of refrigerant R410A.

Taking into account the possible additional load of refrigeration uid

R410A (see "Additional charge", page 21)

Single phase

3-phase

Installation and operating manual "1572 - EN" - 5 -

Heat pump air/water split 2 services alféa excellia duo

" Outside unit,

Model excellia duo 11 & 14 Single phase

650

Air

370

" Outside unit,

Model excellia duo 11, 14 & 16 3-phase

31 77900330 12

Air

400

Side view

Overflow hole (Ø 20) 4Ø10)Holes

3/8”

5/8”

196

147

170

Sight of lower part

Front view

Top view

650

Air

1290

31 12330

Air

400

Side view

370

Overow hole (ø 20)

Sight of lower part

4 Holes (ø 10)

900

1290

Front view

- 6 -

Top view

gure 1 - Dimensions in mm

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

" Hydraulic unit

Heating return

Heating  ow

DHW DCW

1189

175 210

244

1296

1840

644 630 599 576

1850

648

Back view

698

Side view Front view

103

Blockage in the hydraulic unit, see  gure 13, page 15.

 gure 2 - Dimensions in mm

Installation and operating manual "1572 - EN" - 7 -

-50

-25025 50 75

°C

Heat pump air/water split 2 services alféa excellia duo

Variable pressure

mCE

0 0,5 1 1,5 2

1 mbar=10 mmCE=100 Pa

Constante pressure

mCE

0 0,5 1 1,5 2

1 mbar=10 mmCE=100 Pa

Outdoor sensor QAC34

43907

10000

2490

1000

338

1,5 20,50

m/h

Heat pump return sensor Heat pump  ow sensor

32500

30000

27500

25000

22500

20000

17500

15000

12500

10000

7500

5000

2500

1,5 20,50

m/h

0102030405060708090 100

°C

 gure 3 - Hydraulic pressures and  ow rates available

10000

1000

Ohmic value (kΩ)

100

-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130

 gure 4 - Ohmic values of the sensors

(Hydraulic module)

- Compressor

- Discharge

- Condensation

- Outside

- Evaporator outlet

- Evaporator center

- Compressor casing

Temperature °C

- 8 -

 gure 5 - Ohmic values of the sensors (outside unit)

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

1.4 Description

" Model excellia duo 11 & 14

single phase

" Model excellia duo 11, 14 & 16

3-phase

WO*K1**LCT

Legend :

1 - Low-noise, high-output fan. 2 - Electric variable speed "inverter" motor. 3 - "Inverter" control module. 4 - Vacuum start (pump down) and control light. 5 - Connection terminal blocks (power and interconnection). 6 - Refrigerant accumulator bottle. 7 - Cycle reversing valve. 8 - Anti-corrosion treated bodywork. 9 - Electronic expansion valve. 10 - Noise and temperature insulated "inverter" compressor. 11 - Refrigeration connection valves (ared connectors) with protective caps. 12 - Holding tank with condensate drain hole. 13 - High-performance exchange surface evaporator ;

anti-corrosion treated hydrophilic aluminium ns and grooved copper tubes. 14 - Solenoid valve for liquid injection. 15 - Electric expansion valve for liquid injection.

gure 6 - Outdoor unit components

Installation and operating manual "1572 - EN" - 9 -

Heat pump air/water split 2 services alféa excellia duo

6 7

13 15

3 1

21 23

4 5

11 17

Legend :

1 - Electric box. 2 - Regulator / User interface. 3 - Start/stop switch. 4 - Hydraulic pumping unit. 5 - Distribution valve.

6 - Gas refrigeration connection. 7 - Liquid refrigeration connection. 8 - Condensation sensor. 9 - Drain valve. 10 - Safety valve. 11 - Safety thermostat. 12 - Manometer. 13 - Manual drainer. 14 - Expansion vessel. 15 - Condenser. 16 - Electrical back-ups DHW. 17 - ACI. 18 - ACI card.

Sensors :

21 - Water  ow sensor. 22 - DHW sensor. 23 - Water return sensor.

 gure 7 - Hydraulic unit components

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. 13,  gure 6, page 9) : 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 -15 °C outdoor temperature).

- In the compressor (ref. 10,  gure 6, page 9) : The vaporised refrigerant brought to high pressure and takes on more calories.

- In the condenser (ref. 15,  gure 7) : The energy in the refrigerant is transmitted to the heating circuit. The refrigerant returns to liquid state.

- In the expansion valve (ref. 9,  gure 6, page 9) : 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* (option).

- The room thermostat (option)*: provides a corrective

action for the temperature control.

- Control of a second heating circuit*.

- Domestic hot water: Heating time programme, 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.

- Anti-corrosion protection with titanium anode (ACI).

- 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).

- 10 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

• 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 backup 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 programme.

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. 1, gure 42, page 38).

Anti-legionella cycles can be programmed.

• Fan convectors with integrated control system

Do not use a room sensor in the area.

Energy from the air

PAC

Electrical energy consumed

gure 8 - Heat pump operating principle

1kW

Heat produced

COP 4

4kW

20 °C

HP - Heat pump Ev - Evaporator Cp - Compressor Cn - Condenser Dt - Expansion valve

Installation and operating manual "1572 - EN" - 11 -

Heat pump air/water split 2 services alféa excellia duo

2 Installation

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’s 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 9). Accessories provided with the hydraulic unit (gure 10).

1 Elbow

Plug (x 2)(Depending

on the model)

3 Hex / Allen key To open the valves

gure 9 - Accessories provided with the outdoor unit gure 10 - Accessories provided with the hydraulic unit

For draining away the condensates

1 Dielectric ttings

2 DHW pipes

3 Gaskets

4 Outdoor sensor

7 Insulation right

8 Insulation conical

9 Insulation tape

10 Insulation tube

for connection to the DHW circuit

to monitor the outside temp

to isolate the connections and tubes

- 12 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

2.3 Installation position

The choice of the position for installation is particularly important insofar as any later movement is a delicate operation requiring the intervention of a qualied person.

Choose the site of the outdoor unit and the hydraulic unit after discussion with the customer.

Observe the maximum and minimum distances between the hydraulic unit and the outdoor unit (gure 18, page 18), the guarantee of the performances and the system's service life depend on this.

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 11).

• 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 11).

• 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 (gure 12).

250

Minimum

250 or more

150

200

300

200

1000

300

Max. 500

250

250 or more

Minimum

300

250

1500 or more

Minimum

250

1000 or more

Minimum

Max. 500

500

1500

250

250 or more

Minimum

1000 or more

Minimum

500

1500 or more

Minimum

150

500

Max.300

1500

1000

600

150

2000 or more

Minimum

250

250 or more

Minimum

1500

600

3000 or more

Minimum

600

250

Minimum

250 or more

1500

250

Minimum

250 or more

gure 11 - Minimum installation clearances around outside unit (all models)

Installation and operating manual "1572 - EN" - 13 -

Heat pump air/water split 2 services alféa excellia duo

• Nothing should obstruct the air circulation through the evaporator and from the fan (gure 11).

• 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).

• 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.

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 12).

- 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.

* In regions subject to frequent snow,

(H) must be greater than the average snow layer

2.4.3 Condensate drain hose

(see gure 12). If the use of a discharge pipe is imperative:

- 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.

4 holes

gure 12 - Positioning of the outside unit,

draining away the condensate

(ø 12 mm)

- 14 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

2.5 Installing the hydraulic unit

2.5.1 Installation precautions

1800 mm

300 mm

125 mm

• 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 (gure 13).

• 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 building 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).

1000 mm

gure 13 - Minimum installation clearances

around the hydraulic module

and distances to the combustible partitions

Front view

gure 14 - Open the front cover gure 15 - Removing the cover

Installation and operating manual "1572 - EN" - 15 -

Heat pump air/water split 2 services alféa excellia duo

2.6 Refrigeration connections

" This appliance uses refrigerant R410A.

Comply with the legislation for handling refrigerants.

2.6.1 Rules and precautions

• 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.

• 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.

• Brazing on the refrigeration circuit (if necessary)

- Silver brazing (40% minimum recommended).

- Brazing only under dry nitrogen internal ux.

• 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).

Coat the ared surface

with POE refrigeration oil.

Do not use mineral oil.

- 16 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

2.6.2 Refrigeration connections

The outdoor unit must be connected to the hydraulic unit only with copper pipes and connections (refrigeration quality), insulated separately.

Comply with the pipe diameters and the permitted pipe lengths (gure 18).

The minimum length of the refrigeration connections is 5 m for correct operation.

The appliance will be excluded from guarantee if it is used with refrigeration connections less than 5 m long.

If the refrigeration connections are exposed to weathering or UV- and the insulation is not strong, it is necessary to provide protection.

Manipulate the pipes and take them through walls with protective plugs in place.

2.6.3 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).

2.6.4 Shaping the refrigeration pipes

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).

2.6.5 Connecting the ared connections

" Connections must be made the day of the lling

the installation with gas (see para. "Filling the

installation with gas", page 19).

" Take particular care positioning the tube opposite

its connector so as not to risk damaging the

threads. A carefully aligned connector can be tted easily by hand without much force being required.

" The refrigeration circuit is very sensitive to dust

and humidity: check that the area around the connection is clean and dry before removing the plugs protecting the refrigeration connectors.

- Remove the plugs from the pipes and the refrigeration connections.

- Present the pipe to the ared connector and screw the nut by hand while holding the connector with a wrench until contact.

- Comply with the indicated tightening torques.

Flaring tool

Hose

dimensions in mm

ø Hose

L B 0/

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

gure 16 - Flaring for are connections

-0,4

Holding wrench

Flare nut

Torque wrench

Designation Tightening torque

Flare nut 6,35 mm (1/4") 14 to 18 Nm

Flare nut 9,52 mm (3/8") 33 to 42 Nm

Flare nut 12,7 mm (1/2") 50 to 62 Nm

Flare nut 15,88 mm (5/8") 63 to 77 Nm

Plug (A) 3/8", 1/4" 20 to 25 Nm

Plug (A) 1/2" 25 to 30 Nm

Plug (A) 5/8" 30 to 35 Nm

Plug (B) 3/8", 5/8" 10 to 12 Nm

Plug (B) 1/2", 1/4" 12,5 to 16 Nm

gure 17 - Tightening torque

Installation and operating manual "1572 - EN" - 17 -

Heat pump air/water split 2 services alféa excellia duo

HP model alféa excellia duo Single phase & 3-phase

gas  uid

Outdoor unit connections 5/8" 3/8"

Diameter (D1) 5/8" (D2) 3/8"

Refrigeration connections

Minimum length (L) 5

Maximum length* (L) 15

Maximum length** (L) 20

Maxi level difference**(D) 20

Hydraulic unit connections 5/8" 3/8"

* : without additional charge of R410A.

** : Taking into account the possible additional load of refrigerant R410A (see para. "Additional charge", page 21).

Outdoor unit

Liquid valve

Flare

Gas valve

Flare

nut

Flare nut

"Liquid" refrigeration connection Diameter D2

Hydraulic unit

“Gas” refrigeration connection Diameter D1

Flare nut

- 18 -

 gure 18 - Connecting the  ared connections (Pipe diameters and permissible lengths)

Installation and operating manual "1572 - EN"

Jeu de manomètres

Heat pump air/water split 2 services alféa excellia duo

2.7 Filling the installation with gas

" This operation is reserved for installers familiar

with the legislation for handling refrigerants.

" Creating a vacuum with a vacuum pump is

essential (see ANNEX 1).

" Never use equipment used beforehand with any

refrigerant other than a HFC.

" Remove the refrigerant circuit caps only when

building the refrigerant connections.

" Unfavorables conditions :

- If the outdoor temperature is between +5 and +10 °C, it’s obliged to have a vacuum gauge for

validate the pump down operation and use method 3 empty. (see ANNEX 2).

- If the outdoor temperature is below +5 °C, it’s strongly not recommended to do the lling the installation with gas.

ANNEX 2

Method 3 empty

- Connect the high pressure hose to the Manifold, ("Gas" connection). A valve must be mounted on the exible hose from the vacuum pump in order to isolate it.

a) Pump down to the desired value (see table ANNEX 1),

Manometer kit

(Manifold)

(manifold)

Low

Basse

pressure

pression

Haute

pressure

pression

High

Connection

Liaison...

Liquid

liquide gaz

Gas

Vacuum gauge

Vacuomètre

Vacuum pump

Pompe à vide

b) Stop the vacuum pump, close the valve end of the service hose (yellow). Connect the hose to the expansion valve of the nitrogen bottle, inject 2 bars, close the exible hose valve,

ANNEX 1

Method for calibration and control of a vacuum pump

- Check the oil level of the vacuum pump.

- Connect the vacuum pump with the vacuum gauge

Flexible

Clogged exible

bouché

hose

Vacuum

gauge

Vacuomètre

Vacuum

Pompe

pump

à vide

according to the scheme.

- Pump down during 3 minutes.

- After 3 minutes, the pump reaches its threshold

value and the vacuum gauge needle does not move.

- Compare the obtained pressure with the value of the table. Depending on the temperature, this pressure must be less than the value indicated in the table.

=> If it’s not the case, replace the gasket, exible hose or the pump.

T °C 5°C<T<10°C 10°C<T<15°C 15°C < T

Pmax

- bar . .

- mbar

. . . 0.009 . . .

. . . . . 9 . . . . .

. . . 0.015 . . .

. . . . 15 . . . .

. . . 0.020. . .

. . . .20 . . . .

Nitrogen

Haute

pressure

pression

High

Connection

Liaison...

Liquid

liquide

Gas

gaz

Azote

c) Reconnect the exible hose to the vacuum pump, turn on and gradually open the hose valve.

Haute

pressure

pression

High

Connection

Liaison...

Liquid

liquide gaz

Gas

d) Repeat this at least three times.

" Reminder : It’s strictly forbidden to perform

these operations with refrigerant.

2.7.1 Commissioning procedure

• Check before connecting "Gas" connection control (large diameter).

- Connect the "Gas" connection to the outdoor unit.

- Blow dry nitrogen into the "Gas" connection and

observe this end:  If water or impurities emerge, use a new refrigerant

connection.  Otherwise, perform the are and connect immediately

the refrigerant connection to the hydraulic unit.

Installation and operating manual "1572 - EN" - 19 -

"Liquid" connection control (small diameter).

- Connect the "Liquid" connection to the outdoor unit.

- Blow dry nitrogen into "Gas" connection – condensor

- "Liquid" connection assembly and Observe this end (Outdoor unit side).

 If water or impurities emerge, use a new refrigerant connection.

 Otherwise, perform the are and connect immediately the refrigerant connection to the outdoor unit.

Heat pump air/water split 2 services alféa excellia duo

• First seal test

- Remove the protective plugs (B) from the charging hole (Schrader) in the "Gas" valve (large diameter).

- Connect the high pressure hose to the Manifold.

- Connect the bottle of nitrogen to the Manifold

(Use only dry nitrogen type U).

- Pressurize the refrigerant circuit with nitrogen (10 bar maximum) ("Gas" connection – condensor "Liquid" connection assembly).

- Let the circuit under pressure for 30 minutes.

Nitrogen

Haute

pressure

pression

High

Connection

Liaison...

Liquid

liquide

Gas

gaz

Azote

Max. 10 bar

10 bars max.

during 30 mn mini.

30 mn mini

- Search for leaks with a leak detector product, repair and repeat the test.

Haute

pressure

pression

High

Leak control

Liaison... liquide gaz

Vanne fermée,

Contrôle pression

Contrôle d’étanchéité

Closed valve,

pressure control

- When the pressure is stable and leakage is excluded, drain nitrogen letting a pressure above atmospheric pressure (0,2 to 0,4 bar).

• Creating a vacuum and lling the refrigeration connections with gas

- If necessary, calibrate the Manifold gauge to 0 bar. Adjust the vacuum gauge to the atmospheric pressure (around 1013 mbar).

- Connect the vacuum pump to the Manifold. Connect a vacuum gauge if the vacuum pump is not equipped.

Haute

pressure

pression

High

Liaison...

Connection Liquid

liquide gaz

Gas

Vacuum gauge

Vacuomètre

Vacuum pump

Pompe à vide

- Create a vacuum until the residual pressure* in the circuit falls below the value given in the following table. (* measured with the vacuum gauge).

T °C 5°C<T<10°C 10°C<T<15°C 15°C < T

Pmax

- bar . .

- mbar

. . . 0.009 . . .

. . . . . 9 . . . . .

. . . 0.015 . . .

. . . . 15 . . . .

. . . 0.020 . . .

. . . .20 . . . . .

Refrigeration connecxion (Gas)

Refrigeration connexion

Plug (A)

3-way valve

Hex / Allen key of 4mm

Load orifice

Service hose (blue)

High pressure hose (red)

fitted with valve push-button

gure 19 - Connection of the hose on the "Gaz" valve

Plug (B)

- Let the pump continue to operate for another 30 minutes minimum after reaching the vacuum.

- Close the Manifold valve and then stop the vacuum pump without disconnecting any of the hoses in

place.

" If the outdoor temperature is between +5 and

+10 °C, use method 3 empty (see ANNEX 2).

- Remove the access plugs (A) from the valve controls.

- If an additional charge is requires, add the additional

charge before lling the hydraulic unit with gas. Please refer to the para. "Additional charge", page 21.

- First of all fully open the "Liquid" valve (small) and then the "Gas" valve (large) using a hex key (counterclockwise direction) without forcing excessively against the stop.

- Remove the hose rapidly to the Manifold.

- Ret the 2 original caps (be sure they are clean) and

tighten them to the recommended tightening torque (gure 17, page 17). The sealing is performed in the caps only metal to metal.

The outdoor unit does not contain any additional refrigerant, enabling the installation to be purged.

Flushing is strictly forbidden.

2.7.2 Sealing test

The sealing test must be performed with a certied gas detector (sensitivity 5g/year).

Once the refrigeration circuit has been gassed as described above, check that all the refrigeration connectors are gas-tigh (4 connectors). If the arings have been made correctly, there should be no leaks. Eventually, check the tightness of the refrigerant valves caps.

" If there is a leak:

- Bring the gas into the outdoor unit (pump down). The pressure should not drop below atmospheric pressure (0 bar to read on Manifold) so as not to contaminate the recovered gas with air or moisture.

- Make the connection again.

- Repeat the commissioning procedure.

- 20 -

Installation and operating manual "1572 - EN"

Heat pump air/water split 2 services alféa excellia duo

2.7.3 Additional charge

50 g of R410A

per additional meter

Length of the connections

Additional charge none 250 g

15 m 20 m max.

The charge in the outdoor units corresponds to the maximum distances between the outdoor unit and the hydraulic unit dened in page 18. If the distances are greater, an additional charge of R410A is required. The additional charge depends on the distance between the outdoor unit and the hydraulic unit for each type of appliance. The additional charge of R410A must necessarily be made by an approved refrigeration engineer.

• Example of additional charge :

An outdoor unit 17 m away from the hydraulic unit will require an additional charge of :

Additional charge = (17 - 15) x 50 = 100 g. The charge must be introduced after creating the

vacuum and before the hydraulic unit is lled with gas, as follows :

- Disconnect the vacuum pump (yellow hose) and connect a bottle of R410A instead in the liquid

extraction position.

- Open the bottle’s valve.

- Bleed the yellow hose by loosening it slightly on the

Manifold side.

- Place the bottle on scales with a minimum accuracy of 10 g. Note the weight.

- Carefully open the blue valve slightly and check the value shown on the scales.

- As soon as the value displayed has dropped by the value for the calculated additional charge, close the bottle and disconnect it.

- Then rapidly disconnect the hose connected to the appliance.

- Proceed to ll the hydraulic unit with gas.

" Warning

• Only use R410A !

• Only use tools suitable for R410A (set of manometers).

• Always charge in the uid phase.

• Never exceed the length or the maximum difference in level.

2.7.4 Pump down operation (Refrigerant collecting operation) outdoor unit

Perform the following procedures to collect the refrigerant.

- 1- Turn OFF the start/stop switch (ref. 3, gure 7, page 10).

- 2- Remove the front panel. Then turn ON the DIP SW 1 on the interface card.

- 3- Turn ON the start/stop switch. (Green and Red LED on the board start ashing ; 1 sec. on / 1 sec. off repeated).

- 4- The outdoor unit begins cooling operation about 3 minutes after switching ON. Close the "Liquid" valve on the outdoor unit 1 minute after operation starts.

- 5- Close the "Gas" valve on the outdoor unit 1-2 minutes after closing the "Liquid" valve, while the outdoor unit keeps running.

- 6- Disconnect the power supply.

Remarks :

- Make sure to turn OFF the start/stop switch before touching DIP SW.

- The pump down operation cannot be activated even if DIP SW is changed while heat pump's power is on.

- Do not forget to turn back DIP SW 1 on the interface card to OFF, after the pump down operation has been completed.

- When the pump down operation is repeated, temporarily turn OFF the start/stop switch after opening the closed valves (both "Liquid" and "Gas").

- Then turn ON the start/stop switch again after 2-3 minutes and perform the pump down operation.

Interface card

DIP SW

LED2

Gas

R410A

OFF

Liquid

gure 21 - "Gas" bottle R410A

Installation and operating manual "1572 - EN" - 21 -

gure 20 - Location of DIP switches and diodes

on the hydraulic unit interface card

(green)

LED1

(red)

Heat pump air/water split 2 services alféa excellia duo

2.8 Hydraulic connecting

2.8.1 General

The connection must comply with good trade practice according to local building regulations.

The heating circulating pump is built into the hydraulic unit. Connect the central heating pipes to the appliance,

complying with the direction of circulation. The pipe between the heat pump and the heat collector

must be at least one inch in diameter (26x34 mm). Calculate the diameter of the pipes according to the

ow rates and the lengths of the hydraulic systems. Tightening torque: 15 to 35 Nm. Use union connectors to facilitate removing the hydraulic

unit. Preferentially use connection hoses to avoid transmitting

noise and vibrations to the building. Connect the drains from the drain valve and the safety

valve to the main sewer system. Verify the correct functioning of the expansion system.

Control the vessel pressure (precharge 1 bar) and the safety valve setting.

Reminder: Seal everything when tting in accordance with prevailing trade practice for plumbing work:

- Use suitable seals (bre seals, o-rings).

- Use Teon tape or hemp.

- Use sealing paste (synthetic depending on the case).

The use of glycol is not necessary. If you are using a glycol/water mix, provide for an annual check on the quantity of glycol. Use monopropylene glycol only.

Never use monoethylene glycol.

" In certain installations, the presence of different

metals can cause corrosion problems; the formation of metal particles and sludge in the hydraulic circuit is then seen.

" In this case, it is advisable to use a corrosion

inhibitor in the proportions indicated by its manufacturer.

- Please refer to the chapter "Treatment of domestic and heating water" in our price catalogue.

" It is also necessary to ensure that the treated

water does not become aggressive.

Ø 26x34 1" Male

Ø 20x27 3/4" Male

CAR

Legend:

CAR : Non-return valve.

D : Shut-off.

GS : Safety unit.

MT : Thermostatic mixer valve.

R1 : Heating circuit.

- 22 -

gure 22 - Overall hydraulic layout

Installation and operating manual "1572 - EN"

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