Atlantic AOYA 30 LBTL Installation and operation manual

Installation and
commissioning
instructions
for professionals
To be kept by the user
for future reference
Water/air heat pump
with integrated fuel oil burner,
single phase or three phase
split, 2 services
Document n° 1440-11 ~ 29/08/2012
alféa hybrid duo
atlantic-comfort.com
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FR ES PT IT EN
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Outdoor unit Hydraulic module
AOYA 30 LBTL 024101
AOYA 45 LBTL
AOY 54 LJBYL
WOYK112LCT
WOYK140LCT
WOYK160LCT
Document n° 1440-13 ~ 20/12/2012

Sommuary
Presentation of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . 4
Packaging . . . . . . . . . . . . . . . . . . . . . . . 4
Optional equipment . . . . . . . . . . . . . . . . . . 4
Scope . . . . . . . . . . . . . . . . . . . . . . . . . 4
'H¿QLWLRQV . . . . . . . . . . . . . . . . . . . . . . . 4
*HQHUDOFKDUDFWHULVWLFV . . . . . . . . . . . . . . . .4
'HVFULSWLRQ. . . . . . . . . . . . . . . . . . . . . . .9
Operating principle . . . . . . . . . . . . . . . . . 11
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6WDWXWRU\FRQGLWLRQVIRULQVWDOODWLRQDQGVHUYLFLQJ . . 13
8VHRIQHZIXHOV . . . . . . . . . . . . . . . . . .13
8QSDFNLQJDQGUHVHUYHV. . . . . . . . . . . . . . . 13
Receipt . . . . . . . . . . . . . . . . . . . . 13
Handling . . . . . . . . . . . . . . . . . . . 13
&RQWDLQPHQWRIUHIULJHUDQWFLUFXLWV . . . . . . 13
$FFHVVRULHVVXSSOLHG . . . . . . . . . . . . . 13
3RVLWLRQLQJ. . . . . . . . . . . . . . . . . . . . . . 13
,QVWDOOLQJWKHRXWGRRUXQLW . . . . . . . . . . . . . . 14
,QVWDOODWLRQSUHFDXWLRQV . . . . . . . . . . . . 14
Fitting the outdoor unit . . . . . . . . . . . . 14
&RQQHFWLRQRIWKHFRQGHQVDWHHYDFXDWLRQSLSH . 15
,QVWDOOLQJWKHK\GUDXOLFPRGXOH . . . . . . . . . . .17
5HTXLUHPHQWVRILQVWDOODWLRQVSDFH . . . . . . 17
(YDFXDWLRQSLSH. . . . . . . . . . . . . . . . 17
Connection pipe . . . . . . . . . . . . . . . 18
5HIULJHUDWLQJFRQQHFWLRQV. . . . . . . . . . . . . . 18
5XOHVDQGSUHFDXWLRQV . . . . . . . . . . . .18
5HIULJHUDWLQJFRQQHFWLRQV. . . . . . . . . . . 19
Flaring . . . . . . . . . . . . . . . . . . . .19
)RUPLQJWKHUHIULJHUDWLQJWXEHV . . . . . . .19
&RQQHFWLQJWKHÀDUHFRQQHFWLRQV. . . . . . . 19
&RPPLVVLRQLQJRIWKHUHIULJHUDWLQJJDVLQVWDOODWLRQ . . 21
&RPPLVVLRQLQJSURFHGXUH . . . . . . . . . .21
6HDOLQJWHVW . . . . . . . . . . . . . . . . . . 22
Additional charge . . . . . . . . . . . . . . . 23
&ROOHFWWKHUHIULJHUDWLQJÀXLG
in the outdoor unit. . . . . . . . . . . . . . . 24
Hydraulic connection . . . . . . . . . . . . . . . . 24
General . . . . . . . . . . . . . . . . . . . . 24
&RQQHFWLRQWRWKHGRPHVWLFFLUFXLW . . . . . . 25
&RQQHFWLRQWRDIDQFRLOXQLWFLUFXLW. . . . . . 25
5LQVLQJWKHLQVWDOODWLRQ . . . . . . . . . . . . 25
)LOOLQJDQGGUDLQLQJWKHLQVWDOODWLRQ . . . . . . 26
&RQQHFWLRQRIWKHIXHOVXSSO\ . . . . . . . . . . . . 26
(OHFWULFDOFRQQHFWLRQV. . . . . . . . . . . . . . . . 27
&KDUDFWHULVWLFVRIWKHHOHFWULFDOSRZHUVXSSO\ . 27
*HQHUDOUHPDUNVRQWKHHOHFWULFDOFRQQHFWLRQV . . 27
2YHUDOOYLHZRIWKHHOHFWULFDOFRQQHFWLRQV . .28
&URVVVHFWLRQRIWKHFDEOHDQGSURWHFWLRQUDWLQJ . 28
(OHFWULFDOFRQQHFWLRQVRQ
RXWGRRUXQLWVLGHIRUVLQJOHSKDVHPRGHO. . . 29
(OHFWULFDOFRQQHFWLRQVRQWKHRXWGRRUXQLW
VLGHIRUWKHWKUHHSKDVHPRGHO. . . . . . . . 30
(OHFWULFDOFRQQHFWLRQV
RQWKHK\GUDXOLFPRGXOHVLGH . . . . . . . . . 31
2XWGRRUVHQVRU . . . . . . . . . . . . . . . . . . .34
$PELHQWVHQVRU DQGRUFHQWUDODPELHQWXQLWUDGLR . 34
9HUL¿FDWLRQVDQGFRPPLVVLRQLQJ . . . . . . . . . .35
$GMXVWLQJWKHEXUQHU . . . . . . . . . . . . . . . . . 36
6HWWLQJWKHHOHFWURGHV . . . . . . . . . . . .36
6HWWLQJWKHFRPEXVWLRQDLU . . . . . . . . . . 36
&RQ¿JXUDWLRQ RIWKHDPELHQWVHQVRU. . . . . . . . . 36
&RQ¿JXUDWLRQ RIWKHUDGLRFHQWUDODPELHQWXQLW . .36
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Heat pump alfea hybrid duo
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Thank you for buying this product.
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Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
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RSWLRQDO. . . . . . . . . . . . . . . . . . . . . . . 38
7KHDPELHQWVHQVRURSWLRQDO. . . . . . . . . . . . 39
Water logic. . . . . . . . . . . . . . . . . . . . . . 40
0DQXDOVHWWLQJ . . . . . . . . . . . . . . . .40
5HJXODWLRQSDUDPHWHUV . . . . . . . . . . . . . . .42
General . . . . . . . . . . . . . . . . . . . . 42
6HWWLQJWKHSDUDPHWHUV . . . . . . . . . . . . 42
/LVWRIWKHIXQFWLRQOLQHV
VHWWLQJVGLDJQRVLVVWDWH . . . . . . . . . .42
Electrical wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Servicing and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 63
'LVSOD\LQIRUPDWLRQ . . . . . . . . . . . . . . . . .63
6HUYLFLQJRIWKHLQVWDOODWLRQ . . . . . . . . . . . . .63
6HUYLFLQJRIWKHKHDWH[FKDQJHU . . . . . . .63
6HUYLFLQJWKHEXUQHU . . . . . . . . . . . . .64
6HUYLFLQJWKHWDQN. . . . . . . . . . . . . . . 64
6HUYLFLQJWKHFKLPQH\ . . . . . . . . . . . .64
6HUYLFLQJWKHVDIHW\DSSOLDQFHV . . . . . . .64
Values to be given to the user. . . . . . . . . . . . . . . . . . . . . . . . . 68
&RQ¿JXUDWLRQRILQVWDOODWLRQ. . . . . . . . . . . . . . . . . . . . . . . . . . 54
&RQ¿JXUDWLRQRU . . . . . . . . . . . . . . .55
+\GUDXOLFFRQQHFWLRQV . . . . . . . . . . . .55
(OHFWULFDOFRQQHFWLRQV. . . . . . . . . . . . . 55
5HJXODWLRQSDUDPHWHUV . . . . . . . . . . . . 55
)DXOWV . . . . . . . . . . . . . . . . . . . . . . . .65
'LVSOD\RQWKHK\GUDXOLFPRGXOH . . . . . . . 65
)DXOWVGLVSOD\HGRQWKHRXWGRRUXQLW
VLQJOHSKDVHPRGHO . . . . . . . . . . . . .66
)DXOWVGLVSOD\HGRQWKHRXWGRRUXQLW
WKUHHSKDVHPRGHO . . . . . . . . . . . . . .67
"The following are required for the installation of this appliance:
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- a heating engineer.
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Heat pump alfea hybrid duo

1 Presentation of the equipment
1.1 Packaging
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Pairing table
Heat pump Outdoor unit Hydraulic module hybrid duo
Model Exportcode Ref. Code Ref. Code
DOIpDK\EULGGXRVLQJOHSKDVH 522637 AOYA30LBTL 700730
0++' 024101
DOIpDK\EULGGXRVLQJOHSKDVH 522638 AOYA45LATL 700745
AOYA45LBTL 700845
DOIpDK\EULGGXRVLQJOHSKDVH 522639 AOY54LJBYL 700054
DOIpDK\EULGGXRWKUHHSKDVH 522514 WOYK112LAT 700110
DOIpDK\EULGGXRWKUHHSKDVH 522515 WOYK140LAT 700141
DOIpDK\EULGGXRWKUHHSKDVH 522516 WOYK160LAT 700161
1.2 Optional equipment
2nd circuitNLW5HI
WRFRQQHFWKHDWLQJFLUFXLWV
ambient sensor 5HI
WRFRUUHFWWKHDPELHQWWHPSHUDWXUH
Central ambient unit T755HIRU
radio central ambient unit T785HI
WRFRUUHFWWKHDPELHQWWHPSHUDWXUH
and programme the heat pump.
Anti-vibration pads 5HI
:KLWH39&ÀRRUVXSSRUW5HI
Swimming pool duo kit5HI
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WRLQVWDOOXQGHUÀRRUKHDWLQJFLUFXLW
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1.5 General characteristics
Denomination of model .........alféahybridduo........10........13........16........11tri......14tri........16tri
Nominal heating performances (T° outdoor/T° start)
&DORUL¿FSRZHU
&&XQGHUÀRRUKHDWLQJ ........kW.......9,92......13,30......14,86.....10,60......13,25......14,89
&&XQGHUÀRRUKHDWLQJ .........kW.......7,21......10,25......10,51......9,75......13,00......13,50
+7°C/+45°C - LT radiator ..............kW.......6,20.......7,73 ......8.98......10.10......12.60......13.00
-7°C/+45°C - LT radiators ..............kW.......5,90.......6,45 ......8,04.......8,66......12,50......13,00
1.3 Scope
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SURGXFWLRQRIGRPHVWLFKRWZDWHU
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1.4 'H¿QLWLRQV
Split WKH KHDW SXPS LV IRUPHG E\ WZR HOHPHQWV DQ
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heat pump.
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Heat pump alfea hybrid duo
4
Heat pump Outdoor unit Hydraulic module hybrid duo
Model Exportcode Ref. Code Ref. Code
DOIpDK\EULGGXRVLQJOHSKDVH 522637 AOYA30LBTL 700730
0++' 024101
DOIpDK\EULGGXRVLQJOHSKDVH 522638 AOYA45LATL 700745
AOYA45LBTL 700845
DOIpDK\EULGGXRVLQJOHSKDVH 522639 AOY54LJBYL 700054
DOIpDK\EULGGXRWKUHHSKDVH 522514 WOYK112LCT 700118
DOIpDK\EULGGXRWKUHHSKDVH 522515 WOYK140LCT 700143
DOIpDK\EULGGXRWKUHHSKDVH 522516 WOYK160LCT 700163

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+7°C/+45°C - LT radiators ..............kW.......1,88.......2,40 ......3,11.......3,01......3,81........4,00
-7°C/+45°C - LT radiators ..............kW.......2,62.......2,93 ......4,39.......4,04......6,00........6,37
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8VHIXOWKHUPDOSRZHUIRUERLOHUEDFNXS .........kW.............................25..................................
Electrical characteristics
Voltage (50 HZ) ..........................V.......230.......230.......230.......400........400.........400
Maximum current of the appliance ...........A........17........20........26........10.5......10.5........10.5
Nominal current..........................A.......11.7.......16.7 ......20.6.......3.6........4.8.........5.5
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-bythefan...........................W.......103......2x103.....2x103.....2x104......2x104......2x104
- by the circulation pump ................W............................151.................................
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- by the outdoor unit ....................W.......3910......4600 ......5980......7245 ......7245........7245
Burner (Stella 4000 unit), combustion chamber, chimney
)XHOÀRZUDWH .........................kg/h.............................2.3........................... . . . . . .
1RPLQDOFDORUL¿FÀRZUDWH.................kW............................28.7................................ .
Jet...............................Delavan .........................0.6 gph 60° ..............................
Max.viscosityat20°C....................°E.............................1.5.................... . . . . . . . . . . . . .
3XPS ..............................Suntec............................AL35....................... . . . . . . . . .
Factorysetpressure.....................bar.............................15.................... . . . . . . . . . . . . . .
Diameter (combustion chamber)...........mm............................270.................................
Length (combustion chamber).............mm............................400.................................
Volume (combustion chamber) ............dm
3............................22.9.................................
Volume on smoke side ..................dm
3............................31.1.................................
Number of turbulators in the exchanger ........-.............................7..................................
Temperature of the smoke.................°C............................190.................................
0DVVÀRZUDWHRIWKHVPRNH ..............kg/h............................44.4.................................
Boiler pressure .........................3D .............................16..................................
2SWLPXPORZSUHVVXUHLQWKHFKLPQH\ .......3D .............................15..................................
Hydraulic circuit
Maximum operating pressure ..............bar.............................3..................................
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- minimum ..............................l/h.......1000......1380 ......1670......1200 ......1500........1700
- maximum .............................l/h.......2100......2700 ......3300......2400 ......3000........3400
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&DSDFLW\RIGRPHVWLFKRWZDWHUWDQN.........litre............................125.................................
Maximum operating pressure ..............bar.............................7..................................
6SHFL¿FÀRZUDWHLQERLOHUPRGHRQO\.........l/mn.............................19..................................
Miscellaneous
Weight of the outdoor unit .................kg........64........98.......105.......99........99...........99
:HLJKWRIWKHK\GUDXOLFPRGXOHHPSW\ZLWKZDWHU .kg...........................215/482 ...............................
Capacity of boiler........................litre............................142............................ . . . . .
Expansion tank .........................litre.............................18............................ . . . . . .
Noiselevelat1m1(hydr.mod.inthermodynamicmode) .dB ............................35.5.................................
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EN121022(hydr.mod.) .......................dB............................43.3...................
Noise level at 5 m 1(outdoor unit) ............dB........41........40........44........39........41...........42
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EN121022(outdoorunit)......................dB........68........67........71........66........68...........69
Min./max.outdoor temp.(thermodynamicmode). . . °C ......-15/+24....-15/+24....-15/+24....-25/+35....-25/+35....-25/+35
0D[ZDWHUWHPSHUDWXUHIRUVWDUWRIKHDWLQJ ...°C.............................80..................................
0D[ZDWHUWHPSHUDWXUHWKHUPRG\QDPLFPRGH..°C........52........52........52........60........60...........60
Refrigerating circuit
Diameters of the gas pipes .............inches.............................5/8.................................
Diameters of the liquid pipes............inches.............................3/8.................................
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Max. operating pressure ..................bar............................41,5................................ .
Min. length of pipes.................................0.........0.........0.........5..........5............5
Max. length of pipes4.....................m.............................15................................ . .
Max. length of pipes5.....................m........25........25........25........20........20...........20
Max. difference in height5..................m........25........25........25........20........20...........20
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0
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Operating principle of the domestic hot water
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12

2 Installation
2.1 Statutory conditions
for installation and servicing
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2.2 Use of new fuels
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2.3 Unpacking and reserves
2.3.1 Receipt
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2.3.2 Handling
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2.3.3 Containment of refrigerant circuits
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the heat pump.
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objects into the compressor oil would lead to
systematic exclusion of warranty.
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2.3.4 Accessories supplied
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2.4 Positioning
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5
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52XWGRRUVHQVRU to detect the outdoor
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2.5 Installing the outdoor unit
2.5.1 Installation precautions
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large apertures on all 4 sides and respect the
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FROGGRPLQDQWZLQGV
7KH DSSOLDQFH PXVW EH FRPSOHWHO\ DFFHVVLEOH IRU
VXEVHTXHQW LQVWDOODWLRQ DQG PDLQWHQDQFH ZRUN
¿JXUHDQG¿JXUH
(QVXUHWKDWWKHFRQQHFWLRQVFDQEHPDGHHDVLO\ZLWK
the hydraulic module.
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D SODFH WKDW KDV GUDLQDJH EHG RI VDQG RU JUDYHO
LI LW LV LQVWDOOHG LQ D UHJLRQ ZKHUH WKH WHPSHUDWXUH
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SRVVLEOHWRFRQQHFWDSLSHWRHYDFXDWHWRWKHRXWGRRU
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RU XVHUV QRLVH OHYHO GUDXJKWV FDXVHG ORZ RI WKH DLU
EORZQFDXVLQJDULVNRIIUHH]LQJSODQWVLQLWVSDWK
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 EHSHUPHDEOHHDUWKJUDYHOEHG
 VXSSRUWWKHZHLJKWFRPIRUWDEO\
 SHUPLWLWWREHVROLGO\DWWDFKHG
 QRW WUDQVPLW DQ\ YLEUDWLRQV WR WKH DFFRPPRGDWLRQ
DQWLYLEUDWLRQSDGVDUHDYDLODEOHLQRSWLRQ
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WUDQVPLWYLEUDWLRQVJURXQGSRVLWLRQLVSUHIHUUHG
2.5.2 Fitting the outdoor unit
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JURXQG,QVQRZ\UHJLRQVWKLVKHLJKWPXVWEHLQFUHDVHG
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 $WWDFK WKH RXWGRRU XQLW XVLQJ VFUHZ DQG VSULQJ RU VSOLW
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B
B
B
C
C
C
B
*Dans les régions fréquemment enneigées,
(H) doit être supérieur à la couche moyenne de neige.
(Ø 12 mm)
(Ø 10 mm)
Suivant modèle
Suivant modèle
4trous
4trous
H>50mm
*
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+PP B
B
BB C
C
4 KROHV
¡PP
Depending on model
*In regions where it snows often, (H) must be greater than
the average thickness of the snow
Depending on model
Depending on model
4 holes
4 holes
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14

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2.5.3 Connection of the condensate evacuation pipe
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KRVHRIPPGLDPHWHUWRHYDFXDWHWKHFRQGHQVDWHV
 8VHWKHSOXJVVXSSOLHGBWRREVWUXFWWKHRUL¿FHRI
WKHFRQGHQVDWHWUD\
)LW VR WKDW JUDYLW\ ÀRZ RI WKH FRQGHQVDWHV LV HQVXUHG
ZDVWHZDWHUUDLQZDWHUJUDYHOEHG
"Ifinstalledinaregionwherethetemperaturemay
EHEHORZ&IRUDORQJSHULRGWKHHYDFXDWLRQ
pipe must have a resistance tracer to avoid it
icing over. The resistance trace must heat not
just the evacuation pipe but also the bottom of
the condensate drip tray of the appliance.
AIR
100 mm 100 mm
600 mm
100 à 300 mm
250 mm
pour accès
250 mm
pour accès
250 mm
pour accès 300 mm
300 mm
AIR
AIR
AIR
minimum
600 mm
AIR
100 to 300 mm
250 mm
for access
250 mm
for access
250 mm
for access
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1000 mm
ou plus
200 mm
300 mm
200 mm
1000 mm ou plus
150 mm
150 mm
300 mm
Max. 500 mm
1000 mm 1500 mm
250 mm 250 mm
500 mm
Max. 500 mm
1500 mm ou plus
300 mm 500 mm
1500 mm ou plus
1500 mm
500 mm
Max. 300 mm
1500 mm
Minimum
Minimum
Minimum
Minimum
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16

2.6 Installing the hydraulic module
2.6.1 Requirements of installation space
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50 cm2ORFDWHGLQ WKHORZHUSDUWDQG DXVHGDLURXWOHW
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100 cm2 SRVLWLRQHG LQ WKH XSSHU SDUW DQG RSHQLQJ
GLUHFWO\RXWGRRUVVHH¿JXUH
7KH DWPRVSKHULF FRQGLWLRQV LQ WKH URRP PXVW QRW EH
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7RIDFLOLWDWHWKHVHUYLFLQJRSHUDWLRQVDQGSHUPLWDFFHVV
WR WKH YDULRXV SDUWV LW LV UHFRPPHQGHG WKDW VXI¿FLHQW
VSDFHEHOHIWDOODURXQGWKHK\GUDXOLFPRGXOH
"The warranty on the heater will not cover any
installation of the appliance in a chlorine rich
DWPRVSKHUH KDLUGUHVVHUV ODXQGHUHWWH HWF
or any other corrosive vapours.
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WKH UHIULJHUDQW FLUFXLW FDSV only when building the
refrigerant connections.
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WKHLQVWDOODWLRQEHVXUHWKDWWKHUHIULJHUDQWFLUFXLWFDSV
UHPDLQ LQ SODFH DQG WLJKW WKURXJKRXW WKH LQVWDOODWLRQ
duration.
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 $IWHUHYHU\LQWHUYHQWLRQRQWKHUHIULJHUDWLRQFLUFXLWDQG
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FLUFXLW7KHVHDOLQJZLWKWDSHLVSURKLELWHG
2.6.2 Evacuation pipe
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LQIRUFH
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7KHSLSHPXVWEHZDWHUSURRI
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SLSHPXVWKDYHDWXEH¿WWHGZLWKDV\VWHPIRUFROOHFWLQJ
WKHFRQGHQVDWHV
8VH D JRRG TXDOLW\ ZDWHUWLJKW WXEH WKDW LV FRPSDWLEOH
ZLWKWKHIXHOXVHGSRVVLEO\ZLWKDV\VWHPIRUFROOHFWLQJ
WKHFRQGHQVDWHV
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DURXQGWKHK\GUDXOLFPRGXOH
300mm
minimum
150 mm*
1000mm 500mm
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EHKLQGWKHDSSOLDQFH
A
B
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RIWKHHYDFXDWLRQGXFW%
40 cm
8m
40 cm
40 cm
8m
1,2 m
<15°
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Heat pump alfea hybrid duo

2.6.3 Connection pipe
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LQIRUFH
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SLSHZKHQWKHORZSUHVVXUHRIWKHFKLPQH\LVJUHDWHU
than 30 Pa.
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2.7 Refrigerating connections
"7KLV DSSOLDQFH XVHV WKH UHIULJHUDWLQJ ÀXLG
R410A.
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2.7.1 Rules and precautions
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circuit.
Minimum necessary tools
 6HWRIPDQRPHWHUVManifoldZLWKKRVHVH[FOXVLYHO\
UHVHUYHGIRU+)&V+\GURÀXRURFDUERQV
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ZLWKDQRQUHWXUQYDOYHRQWKHVXFWLRQVLGH
Flaring tool.
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 'HEXUULQJWRRO
 :UHQFKHV
 5HIULJHUDQWJDVOHDNGHWHFWRUFHUWL¿HGVHQVLWLYLW\J\HDU
"Provision on using tools that have been in
FRQWDFWZLWK+&)&V5IRUH[DPSOHRU&)&V
"The manufacturer declines any liability with
regard to the guarantee if the above instructions
are not observed.
7XEHH[SDQGHUVÀDUHGFRQQHFWRUV
"Lubrication with mineral oil
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ZLWKrefrigerating oil POE.
Do not use mineral oil.
Brazing on the refrigerating circuit
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appliance.
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Dimensions in mm
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2.7.2 Refrigerating connections
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hydraulic module using only copper connections
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2.7.3 Flaring
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2.7.4 Forming the refrigerating tubes
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"Warning!
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2.7.5 &RQQHFWLQJWKHÀDUHFRQQHFWLRQV
"The small tube must always be connected
before the large one.
"Pay special attention to the position of the tube
aligned with its connector to avoid damaging
the thread. A correctly aligned connector can be
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required.
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connection is dry and clean before removing the
plugs that protect the refrigerating connectors.
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Heat pump alfea hybrid duo

Vanne “liquide”
Écrou flare
Liaison frigorifique “liquide”
diamètre D2
Liaison frigorifique “gaz”
diamètre D1
Vanne “gaz”
Écrou flare
Écrou flare
Écrou flare
Unité
extérieure
Module
hydraulique
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Outdoor unit Hydraulic
module
Liquid valve
Flare nut "Liquid" refrigerating
connection diameter D2
Gas valve
Flare nut
"Gas" refrigerating
connection diameter D1
Flare nut
Flare nut
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20