Daikin FXSQ20M7V1B User manual

INSTALLATION AND OPERATION MANUAL
FXSQ20M7V1B
FXSQ25M7V1B
FXSQ32M7V1B
FXSQ40M7V1B
FXSQ50M7V1B
FXSQ63M7V1B
FXSQ80M7V1B
FXSQ100M7V1B
FXSQ125M7V1B
System air conditioner

1
1
≥300
1
7b
7b
5
1232
4
460
180
A
160 (160-300)
≥425
2
2
2
5
6
7
4 3
4
4
1
3
2
4
5
5
5
2
1
2
3
6a
6a
2
3
1
4
680
85
6b
6b
13
2
4
6
5
50
200≤45
680
6c
6c
1
5
2
3
7
4
680
65
3
3
1
4
3
4
2800
630
B A
145
7c
7c
4
22 3
1460
180
≥350
A
8
8
1 - 1.5m
0-625mm
2
6
1
5 4
A
39
9
1
≥100mm
7a
7a
1
32
2
1
3
10
10
3
2
1
65
4

11a
11a
14
6
8
10
5
11
9
13
12
7
6
11b
11b
3
5
1
2
4
12
12
LN LN
IN/D OUT/D
F1F2F1F2
Control box
LNLN
LN P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2 P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2LN P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2LN LN P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2
3
4
2
1
13
13
2
2
1
14
14
LN
IN/D OUT/D
F1F2F1F2
Control box
LN P 1 P 2
P 1 P 2
F 1 F 2 T 1 T 2LN P 1 P 2 F 1 F 2 T 1 T 2LN P 1 P 2 F 1 F 2 T 1 T 2LN P 1 P 2 F 1 F 2 T 1 T 2
P 1 P 2 P 1 P 2
2
4
5
3
1
16
16
IN/D OUT/D
F1F2F1F2
Control box
IN/DOUT/D
F1F2F1F2
Control box
LN
P 1 P 2
LN P 1 P 2 F 1 F 2 T 1 T 2
1
3
6
2
20
20
S
M
S
S
M
1
2
3
19
19
1
2
5
6
3
4
7
8
9
15
15
21
21
SETTING
21
4
3
11c
11c
5
4
1
3
2
18
18
F2 T1 T2
FORCED
OFF
1
17
17
1
2

CE - DECLARATION-OF-CONFORMITY
CE - KONFORMITÄTSERKLÄRUNG
CE - DECLARATION-DE-CONFORMITE
CE - CONFORMITEITSVERKLARING
CE - DECLARACION-DE-CONFORMIDAD
CE - DICHIARAZIONE-DI-CONFORMITA
CE - ¢H§ø™H ™YMMOPºø™H™
CE - DECLARAÇÃO-DE-CONFORMIDADE
CE - OPFYLDELSESERKLÆRING
CE - FÖRSÄKRAN-OM-ÖVERENSTÄMMELSE
CE - ERKLÆRING OM-SAMSVAR
CE - ILMOITUS-YHDENMUKAISUUDESTA
declares under its sole responsibility that the air conditioning models to which this declaration relates:
erklärt auf seine alleinige Verantwortung daß die Modelle der Klimageräte für die diese Erklärung bestimmt ist:
déclare sous sa seule responsabilité que les appareils d'air conditionné visés par la présente déclaration:
verklaart hierbij op eigen exclusieve verantwoordelijkheid dat de airconditioning units waarop deze verklaring betrekking heeft:
declara baja su única responsabilidad que los modelos de aire acondicionado a los cuales hace referencia la declaración:
dichiara sotto sua responsabilità che i condizionatori modello a cui è riferita questa dichiarazione:
‰ËÏÒÓÂÈ Ì ·ÔÎÏÂÈÛÙÈ΋ Ù˘ ¢ı‡ÓË fiÙÈ Ù· ÌÔÓ٤Ϸ ÙˆÓ ÎÏÈÌ·ÙÈÛÙÈÎÒÓ Û˘Û΢ÒÓ ÛÙ· ÔÔ›· ·Ó·Ê¤ÚÂÙ·È Ë ·ÚÔ‡Û· ‰‹ÏˆÛË:
declara sob sua exclusiva responsabilidade que os modelos de ar condicionado a que esta declaração se refere:
erklærer under eneansvar, at klimaanlægmodellerne, som denne deklaration vedrører:
deklarerar i egenskap av huvudansvarig, att luftkonditioneringsmodellerna som berörs av denna deklaration innebär att:
erklærer et fullstendig ansvar for at de luftkondisjoneringsmodeller som berøres av denne deklarasjon innebærer at:
ilmoittaa yksinomaan omalla vastuullaan, että tämän ilmoituksen tarkoittamat ilmastointilaitteiden mallit:
are in conformity with the following standard(s) or other normative document(s), provided that these are used in accordance with our instructions:
der/den folgenden Norm(en) oder einem anderen Normdokument oder -dokumenten entspricht/entsprechen, unter der Voraussetzung, daß sie gemäß unseren Anweisungen eingesetzt werden:
sont conformes à la/aux norme(s) ou autre(s) document(s) normatif(s), pour autant qu'ils soient utilisés conformément à nos instructions:
conform de volgende norm(en) of één of meer andere bindende documenten zijn, op voorwaarde dat ze worden gebruikt overeenkomstig onze instructies:
están en conformidad con la(s) siguiente(s) norma(s) u otro(s) documento(s) normativo(s), siempre que sean utilizados de acuerdo con nuestras instrucciones:
sono conformi al(i) seguente(i) standard(s) o altro(i) documento(i) a carattere normativo, a patto che vengano usati in conformità alle nostre istruzioni:
Â›Ó·È Û‡Ìʈӷ Ì ÙÔ(·) ·ÎfiÏÔ˘ıÔ(·) ÚfiÙ˘Ô(·) ‹ ¿ÏÏÔ ¤ÁÁÚ·ÊÔ(·) ηÓÔÓÈÛÌÒÓ, ˘fi ÙËÓ ÚÔ¸fiıÂÛË fiÙÈ ¯ÚËÛÈÌÔÔÈÔ‡ÓÙ·È Û‡Ìʈӷ Ì ÙȘ Ô‰ËÁ›Â˜ Ì·˜:
estão em conformidade com a(s) seguinte(s) norma(s) ou outro(s) documento(s) normativo(s), desde que estes sejam utilizados de acordo com as nossas instruções:
overholder følgende standard(er) eller andet/andre retningsgivende dokument(er), forudsat at disse anvendes i henhold til vore instrukser:
respektive utrustning är utförd i överensstämmelse med och följer följande standard(er) eller andra normgivande dokument, under förutsättning att användning sker i överensstämmelse med våra instruktioner:
respektive utstyr er i overensstemmelse med følgende standard(er) eller andre normgivende dokument(er), under forutssetning av at disse brukes i henhold til våre instrukser:
vastaavat seuraavien standardien ja muiden ohjeellisten dokumenttien vaatimuksia edellyttäen, että niitä käytetään ohjeidemme mukaisesti:
following the provisions of: Directives, as amended.
gemäß den Vorschriften der: Direktiven, gemäß Änderung.
conformément aux stipulations des: Directives, telles que modifiées.
overeenkomstig de bepalingen van: Richtlijnen, zoals geamendeerd.
siguiendo las disposiciones de: Directivas, según lo enmendado.
secondo le prescrizioni per: Direttive, come da modifica.
Ì ًÚËÛË Ùˆv ‰È·Ù¿Íˆv Ùˆv: √‰ËÁÈÒv, fiˆ˜ ¤¯Ô˘Ó ÙÚÔÔÔÈËı›.
de acordo com o previsto em: Directivas, conforme alteração em.
under iagttagelse af bestemmelserne i: Direktiver, med senere ændringer.
enligt villkoren i: Direktiv, med företagna ändringar.
gitt i henhold til bestemmelsene i: Direktiver, med foretatte endringer.
noudattaen määräyksiä: Direktiivejä, sellaisina kuin ne ovat muutettuina.
Daikin Europe N.V.
FXSQ20M7V1B, FXSQ25M7V1B, FXSQ32M7V1B,
FXSQ40M7V1B, FXSQ50M7V1B, FXSQ63M7V1B,
FXSQ80M7V1B, FXSQ100M7V1B, FXSQ125M7V1B
EN60335-2-40,
Low Voltage 73/23/EEC
Machinery Safety 98/37/EEC
Electromagnetic Compatibility 89/336/EEC *
* Note as set out in the Technical Construction File DAIKIN.TCF.022 and judged positively by TNO according to the Certificate 0301130401.
Hinweis wie in der Technischen Konstruktionsakte DAIKIN.TCF.022 aufgeführt und von TNO positiv ausgezeichnet gemäß Zertifikat 0301130401.
Remarque tel que stipulé dans le Fichier de Construction Technique DAIKIN.TCF.022 et jugé positivement par TNO conformément au Certificat 0301130401.
Bemerk zoals vermeld in het Technisch Constructiedossier DAIKIN.TCF.022 en in orde bevonden door TNO overeenkomstig Certificaat 0301130401.
Nota tal como se expone en el Archivo de Construcción Técnica DAIKIN.TCF.022 y juzgado positivamente por TNO según el Certificado 0301130401.
Nota delineato nel File Tecnico di Costruzione DAIKIN.TCF.022 e giudicato positivamente da TNO secondo il Certificato 0301130401.
™ËÌ›ˆÛË fiˆ˜ ÚÔÛ‰ÈÔÚ›˙ÂÙ·È ÛÙÔ ∞Ú¯Â›Ô ∆¯ÓÈ΋˜ ∫·Ù·Û΢‹˜ DAIKIN.TCF.022 Î·È ÎÚ›ÓÂÙ·È ıÂÙÈο ·fi ÙÔ TNO Û‡Ìʈӷ Ì ÙÔ ¶ÈÛÙÔÔÈËÙÈÎfi 0301130401 .
Nota tal como estabelecido no Ficheiro Técnico de Construção DAIKIN.TCF.022 e com o parecer positivo de TNO de acordo com o Certificado 0301130401.
Bemærk som anført i den Tekniske Konstruktionsfil DAIKIN.TCF.022 og positivt vurderet af TNO i henhold til Certifikat 0301130401.
Information utrustningen är utförd i enlighet med den Tekniska Konstruktionsfilen DAIKIN.TCF.022 som positivt intygas av TNO vilket också framgår av Certifikat 0301130401.
Merk som det fremkommer i den Tekniske Konstruksjonsfilen DAIKIN.TCF.022 og gjennom positiv bedømmelse av TNO ifølge Sertifikat 0301130401.
Huom jotka on esitetty Teknisessä Asiakirjassa DAIKIN.TCF.022 ja jotka TNO on hyväksynyt Sertifikaatin 0301130401 mukaisesti.
Katsuyuki Sawai
Assistant Director Quality Assurance
Ostend, 1st of April 2003 Zandvoordestraat 300, B-8400 Oostende, Belgium
3PW15189-3A

FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
Installation and operation manual
1
CONTENTS Page
Before installation .............................................................................. 1
Selecting installation site ...................................................................2
Preparations before installation .........................................................2
Indoor unit installation........................................................................ 3
Refrigerant piping work...................................................................... 3
Drain piping work...............................................................................4
Electric wiring work............................................................................ 5
Wiring example and how to set the remote controller .......................6
Wiring example..................................................................................6
Installation of the decoration panel....................................................7
Test operation .................................................................................... 7
Maintenance...................................................................................... 8
Wiring diagram ................................................................................10
BEFORE INSTALLATION
■Leave the unit inside its packaging until you reach the
installation site. Where unpacking is unavoidable, use a sling of
soft material or protective plates together with a rope when
lifting, this to avoid damage or scratches to the unit.
■Refer to the installation manual of the outdoor unit for items not
described in this manual.
■Caution concerning refrigerant series R-410A:
The connectable outdoor units must be designed exclusively for
R-410A.
Precautions
■Do not install or operate the unit in rooms mentioned below.
- Places with mineral oil, or filled with oil vapour or spray like in
kitchens. (Plastic parts may deteriorate.)
- Where corrosive gas like sulphurous gas exists. (Copper
tubing and brazed spots may corrode.)
- Where volatile flammable gas like thinner or gasoline is used.
- Where machines generating electromagnetic waves exist.
(Control system may malfunction.)
- Where the air contains high levels of salt such as air near the
ocean and where voltage fluctuates a lot (e.g. in factories).
Also in vehicles or vessels.
■When selecting the installation site, use the supplied paper
pattern for installation.
■Do not install accessories on the casing directly. Drilling holes in
the casing may damage electrical wires and consequently cause
fire.
Accessories
Check if the following accessories are included with your unit.
Screws for fixing panels are attached to the air inlet panel.
Optional accessories
■There are two types of remote controllers: wired and wireless.
Select a remote controller according to customer request and
install in an appropriate place.
Refer to catalogues and technical literature for selecting a
suitable remote controller.
■When installing bottom suction: air inlet panel and canvas
connection for the air inlet panel.
FXSQ20M7V1B FXSQ40M7V1B FXSQ80M7V1B
FXSQ25M7V1B FXSQ50M7V1B FXSQ100M7V1B
FXSQ32M7V1B FXSQ63M7V1B FXSQ125M7V1B VRV System air conditioner Installation and
operation manual
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION. KEEP THIS MANUAL IN A HANDY
PLACE FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACTYOUR DAIKIN DEALER FOR ADVICE
AND INFORMATION.
Metal clamp
1 piece
Paper pattern for
installation
1 piece
Drain hose
1 piece
Insulation for fitting
1 each
Washer for
hanging bracket
8 pieces
for gas pipe for liquid pipe
Screws for duct flanges
1 set
FXSQ20•25•32 6 pieces Screws for fixing
the paper pattern
for installation
6 pieces
FXSQ40•50 8 pieces
FXSQ63 12 pieces
FXSQ80•100•125 16 pieces
Other: installation and operation manual, fuse

Installation and operation manual
2FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
For the following items, take special care during
construction and check after installation is finished
Notes to the installer
■Read this manual carefully to ensure correct installation. Be sure
to instruct the customer how to properly operate the system and
show him/her the enclosed operation manual.
■Explain to the customer what system is installed on the site. Be
sure to fill out the appropriate installation specifications in the
chapter "What to do before operation" of the outdoor unit
operation manual.
SELECTING INSTALLATION SITE
(See figure 1 and figure 2)
1Select an installation site where the following conditions are
fulfilled and that meets your customer's approval.
- Where optimum air distribution can be ensured.
- Where nothing blocks air passage.
- Where condensate water can be properly drained.
- Where the false ceiling is not noticeably on an incline.
- Where sufficient clearance for maintenance and service can
be ensured.
- Where piping between indoor and outdoor units is possible
within the allowable limit. (Refer to the installation manual of
the outdoor unit.)
- Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 1 meter away from televisions
and radios.This is to prevent image interference and noise in
those electrical appliances. (Noise may be generated
depending on the conditions under which the electric wave is
generated, even if 1 meter is kept.)
2Use suspension bolts for installation. Check whether the ceiling
is strong enough to support the weight of the indoor unit. If there
is a risk, reinforce the ceiling before installing the unit.
PREPARATIONS BEFORE INSTALLATION
1Relation of ceiling opening to unit and suspension bolt position.
(See figure 3)
For installation, choose one of the possibilities as listed further.
Standard rear suction (See figure 6a)
Installation with rear duct and duct service opening (See
figure 6b)
Installation with rear duct, no duct service opening (See
figure 6c)
Tick ✓
when
checked
■Is the indoor unit fixed firmly?
The unit may drop, vibrate or make noise.
■Is the gas leak test finished?
It may result in insufficient cooling.
■Is the unit fully insulated?
Condensate water may drip.
■Does drainage flow smoothly?
Condensate water may drip.
■Does the power supply voltage correspond to that shown on the
name plate?
The unit may malfunction or components may burn out.
■Are wiring and piping correct?
The unit may malfunction or components may burn out.
■Is the unit safely grounded?
Dangerous at electric leakage.
■Is the wiring size according to specifications?
The unit may malfunction or components may burn out.
■Is nothing blocking the air outlet or inlet of either the indoor or
outdoor units?
It may result in insufficient cooling.
■Are refrigerant piping length and additional refrigerant charge
noted down?
The refrigerant charge in the system might not be clear.
■Are the air filters fixed properly (when installing with rear duct)?
Maintenance of the air filters can be impossible.
1Service space ≥300
2Drain pipe
3Power supply wiring port
4Transmission wiring port
5Maintenance drain outlet
6Gas pipe
7Liquid pipe
Model A B
FXSQ20•25•32 550 600
FXSQ40•50 700 750
FXSQ63 1000 1050
FXSQ80•100•125 1400 1450
1Indoor unit
2Pipe
3Suspension bolt pitch (x4)
4Suspension bolt pitch distance
1Ceiling surface
2Ceiling opening
3Service access panel (optional accessory)
4Air filter
5Air inlet duct
6Duct service opening
7Interchangeable plate
NOTE Before installation of the unit (in case of installation
with duct, but no duct service opening): modify the
position of the air filters.
1Remove the air filter(s) at the
outside of the unit
2Remove the interchangeable plate
3Install the air filter(s) from the inside
of the unit
4Reinstall the interchangeable plate
1
2
4
3

FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
Installation and operation manual
3
Bottom suction (See figure 7a)
Mounting the air inlet panel with a canvas connection (See
figure 7b)
Mounting the air inlet panel directly (See figure 7c)
This is to protect the air filter from damage during maintenance of the
filter.
For other installation than standard installation, contact your Daikin
dealer for details.
2The fan speed for this indoor unit is preset to provide standard
external static pressure.
If higher or lower external static pressure is required, reset the external
static pressure by repositioning the adaptors of the PC-board.
Refer to "Setting of static pressure changeover connector" on
page 6.
3Install the suspension bolts.
(Use M10 size bolt for the suspension bolt.) Use anchors for
existing ceilings, and a sunken insert, sunken anchors or other
field supplied parts for new ceilings to reinforce the ceiling in
order to bear the weight of the unit.
Installation example (See figure 4)
INDOOR UNIT INSTALLATION
When installing optional accessories (except for the air inlet panel),
read also the installation manual of the optional accessories.
Depending on the field conditions, it may be easier to install optional
accessories before the indoor unit is installed.
1Install the indoor unit temporarily.
- Attach the hanger bracket to the suspension bolt. Be sure to
fix it securely by using a nut and washer from the upper and
lower sides of the hanger bracket. (See figure 5)
2Check if the unit is horizontally levelled.
- Do not install the unit tilted.The indoor unit is equipped with a
built-in drain pump and float switch. (If the unit is tilted
against condensate flow, the float switch may malfunction
and cause water to drip.)
- Check if the unit is levelled at all four corners with a water
level or a water-filled vinyl tube as shown in figure 13.
3Tighten the upper nut.
4Fix the paper pattern for installation.
- The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder for
details.
- Attach the paper pattern for installation to the unit with the
attached screws as shown in figure 17.
The paper pattern for installation is marked for 3 types of
ceiling openings. Read the notations carefully when
installing.
REFRIGERANT PIPING WORK
For refrigerant piping of outdoor unit, refer to the installation manual
supplied with the outdoor unit.
Before rigging tubes, check which type of refrigerant is used.
■Use a pipe cutter and flare suitable for the used refrigerant.
■Apply ether oil or ester oil around the flare portions before
connecting.
■To prevent dust, moisture or other foreign matter from infiltrating
the tube, either pinch the end, or cover it with tape.
■The outdoor unit is charged with refrigerant.
NOTE The unit can be used with bottom suction by replacing
the interchangeable plate by the air filter holding plate.
1Air filter holding plate with air filter(s)
2Interchangeable plate
3Small bottom plate
1Ceiling surface
2Ceiling opening
3Air inlet panel (Optional accessory)
4Indoor unit (Back side)
5Canvas connection for air inlet panel (Optional accessory)
Model A
FXSQ20•25•32 610
FXSQ40•50 760
FXSQ63 1060
FXSQ80•100•125 1460
NOTE When installing an air inlet duct, select fixing screws
that shall stick out maximum 5 mm at the inside of the
flange.
1Air inlet duct
2Inside of the flange
3Fixing screw
12
3≤5 mm
1Anchor
2Ceiling slab
3Long nut or turn-buckle
4Suspension bolt
5Indoor unit
NOTE All the above parts are field supplied.
1Nut (field supply)
2Washer for hanger bracket (supplied with the unit)
3Tighten (double nut)
1Water level
2Vinyl tube
1Paper pattern for installation (supplied with the unit)
2Screws for fixing the paper pattern for installation (supplied with
the unit (6))
NOTE All field piping must be provided by a licensed
refrigeration technician and must comply with the
relevant local and national codes.

Installation and operation manual
4FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
■Be sure to use both a spanner and torque wrench together when
connecting or disconnecting pipes to/from the unit.
■Refer to Table 1 for the dimensions of flare nut spaces and the
appropriate tightening torque. (Overtightening may damage the
flare and cause leaks.)
Table 1
■When connecting the flare nut, coat the flare both inside and
outside with ether oil or ester oil and initially tighten by hand 3 or
4 turns before tightening firmly.
■Check the pipe connector for gas leaks, then insulate it.
DRAIN PIPING WORK
Rig the drain piping as shown in the figure and take measures
against condensation. Improperly rigged piping could lead to leaks
and eventually wet furniture and belongings.
1Install the drain pipes.
- Keep piping as short as possible and slope it downwards so
that air may not remain trapped inside the pipe.
- Keep pipe size equal to or greater than that of the connecting
pipe (vinyl pipe of 25 mm nominal diameter and 32 mm outer
diameter).
- Use the supplied drain hose and metal clamp. Tighten the
clamp firmly.
■Insulate the drain hose inside the building.
■If the drain hose cannot be sufficiently set on a slope, fit the
hose with drain raising piping (field supply).
HOW TO PERFORM PIPING (See figure 8)
■Connect the drain hose to the drain raising pipes, and insulate
them.
■Connect the drain hose to the drain pipe on the indoor unit, and
tighten it with the metal clamp.
- To ensure a downward slope of 1:100, install hanging bars
every 1 to 1.5 m.
- If unifying multiple drain pipes, install the pipes as shown in
figure 9.
2After piping work is finished, check if drainage flows smoothly.
- Open the water inlet lid, add approximately 1 l of water
gradually and check the drainage flow. (See figure 10)
1Torque wrench
2Spanner
3Piping union
4Flare nut
Pipe
gauge Tightening torque
Flare dimension
A (mm) Flare shape
Ø6.4 14.2~17.2 N•m
(144~176 kgf•cm)
8.7~9.1
Ø9.5 32.7~39.9 N•m
(333~407 kgf•cm)
12.8~13.2
Ø12.7 49.5~60.3 N•m
(504~616 kgf•cm)
16.2~16.6
Ø15.9 61.8~75.4 N•m
(630~770 kgf•cm)
19.3~19.7
Coat here with ether oil
or ester oil
1Liquid pipe
2Gas pipe
3Insulation for fitting of liquid
line (supplied with the unit)
4Insulation for fitting of gas
line (supplied with the unit)
5Clamps (use 2 clamps per
insulation)
2
3
1
4
R=0.4~0.8
45°±2
90°±4
A
5
3
1
24
1Hanging bar
1Metal clamp
2Drain hose
3White tape (field
supply)
1Ceiling slab
2Hanging bar
3Adjustable range
4Drain hose (supplied with the unit)
5Metal clamp (supplied with the unit)
6Drain raising pipe (field supply)
Installation A
Rear suction installation 275
When canvas duct is installed 350-530
When air inlet panel is directly installed 275
1Multiple drain piping
1Water inlet
2Portable pump
3Water inlet lid
4Bucket (adding water from water inlet)
5Drain outlet for maintenance (with rubber drain plug)
6Refrigerant pipes
1-1.
5m
1
21
3

FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
Installation and operation manual
5
When electric wiring work is finished
Check drainage flow during COOL running, explained in "Test operation"
on page 7.
When electric wiring work is not finished
Remove the switch box cover and connect the single-phase power
supply and the remote controller to the terminals. (Refer to "Electric
wiring work" on page 5 for switch box attachment/detachment.)
(Refer to figure 11a and figure 11b)
Next, press the inspection/test operation button on the remote
controller. The unit will engage the test operation mode. Press the
operation mode selector button until selecting fan operation
. Then, press the on/off button . The indoor unit fan and drain
pump will start up. Check that the water has drained from the unit.
Press to go back to the first mode.
ELECTRIC WIRING WORK
General instructions
■All field supplied parts and materials and electric works must
conform to local codes.
■Use copper wire only.
■Follow the "Wiring diagram" attached to the switch box cover to
wire the outdoor unit, indoor units and the remote controller. For
details on hooking up the remote controller, refer to the
"Installation manual of the remote controller".
■All wiring must be performed by an authorized electrician.
■A circuit breaker capable of shutting down power supply to the
entire system must be installed.
■This system consists of multiple indoor units. Mark each indoor
unit as unit A, unit B..., and be sure the terminal board wiring to
the outdoor unit and BS unit are properly matched. If wiring and
piping between the outdoor unit and an indoor unit are
mismatched, the system may cause a malfunction.
Electrical characteristics
MCA: Min. circuit Amps (A)
MFA: Max. Fuse Amps (A)
KW: Fan Motor Rated Output (kW)
FLA: Full Load Amps (A)
Specifications for field supplied fuses and wire
Allowable length of transmission wiring between indoor and outdoor
units, and between the indoor unit and the remote controller is as
follows:
1. Outdoor unit - indoor unit: max. 1000 m (total wiring length: 2000 m)
2. Indoor unit - remote controller: max 500 m
Caution for drain socket
Do not remove the drain pipe plug. Water might leak out.
The drain outlet is only used to discharge water if the drain
pump is not used or before maintenance. Gently put in and
out the drain plug. Excessive force may deform the drain
socket of the drain pan.
■Pulling out the plug
Do not wiggle the plug up and down
■Pushing in the plug
Set the plug and push it by using a Philips screwdriver
1Switch box cover
2Power supply wiring port
3Transmission wiring port
4Wiring diagram
5Switch box
6Plastic clamp
7Remote controller wiring
8Terminal board for unit transmission wiring
9Power supply wiring
10 Indoor PC board
11 Power supply terminal board
12 Earth screw
13 Transmission wiring between units
14 Adaptor for PC board
1
1Drain plug
1
2
1Drain plug
2Philips screwdriver
TEST
TEST
Model Hz Volts Voltage range
FXSQ20~125 50 230 min. 198-max. 264
power supply Fan motor
Model MCA MFA KW FLA
FXSQ20•25•32 0.5 16 A 0.05 0.4
FXSQ40 0.6 16 A 0.065 0.5
FXSQ50 0.9 16 A 0.085 0.7
FXSQ63 1.1 16 A 0.125 0.9
FXSQ80 1.3 16 A 0.135 1.0
FXSQ100 1.5 16 A 0.135 1.2
FXSQ125 2.0 16 A 0.225 1.6
NOTE For details, refer to "Electrical data".
Power supply wiring
Model Field fuses Wire Size
FXSQ20~125 16 A H05VV-U3G Local codes
Model Wire Size
FXSQ20~125 Sheathed wire (2) 0.75-1.25 mm2
NOTE For details, refer to "Wiring example" on page 6.

Installation and operation manual
6FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
WIRING EXAMPLE AND HOW TO SET THE
REMOTE CONTROLLER
How to connect wiring
From the outside of the unit
Remove the switch box cover as shown in figure 11b, and make the
connections.
From the inside of the unit
Remove the small bottom plate and the interchangeable plate (in
case of rear suction) or the air filter holding plate (in case of bottom
suction). Lower the switch box as shown in figure 11c. Put the wires
through the wiring ports of the switch box cover before connecting
them.
PRECAUTIONS
1Observe the notes mentioned below when wiring to the power
supply terminal board.
- Do not connect wires of different gauge to the same power
supply terminal. (Looseness in the connection may cause
overheating.)
- When connecting wires of the same gauge, connect them
according to the figure.
2Keep total current of crossover wiring between indoor units less
than 12 A. Branch the line outside the terminal board of the unit
in accordance with electrical equipment standards, when using
two power wiring of a gauge greater than 2 mm2(Ø1.6).
The branch must be sheathed in order to provide an equal or
greater degree of insulation as power supply wiring itself.
3Do not connect wires of different gauge to the same grounding
terminal. Looseness in the connection may deteriorate the
protection.
4Remote controller cords and wires connecting the units should
be located at least 50 mm away from power supply wiring. Not
following this guideline may result in malfunction due to electrical
noise.
5For the remote controller wiring, refer to the "Installation manual
of the remote controller" supplied with the remote controller.
6Never connect the power supply wiring to the terminal board for
transmission wiring. This mistake could damage the entire
system.
7Use only specified wires and tightly connect wires to the
terminals. Be careful that wires do not place external stress on
the terminals. Keep wiring in neat order so that they do not
obstruct other equipment such as popping open the switch box
cover. Make sure the cover closes tight. Incomplete connections
could result in overheating, and in the worse case, electric shock
or fire.
Setting of static pressure changeover connector
■According to the systems static pressure requirement, reposition
the adaptors of the PC board inside the switch box as shown in
the figure.
WIRING EXAMPLE
Fit the power supply wiring of each unit with a switch and fuse as
shown in figure 19.
Complete system example (3 systems)
When using 1 remote controller for 1 indoor unit (Normal operation)
(See figure 12)
For group control or use with 2 remote controllers (See figure 14)
When including BS unit (See figure 16)
1Small bottom plate
2Air filter holding plate
3Switch box
4Interchangeable plate
5Square hole (covered by the switch box cover)
FXSQ20•32•40•50•63 FXSQ80•100•125
Low
not available
Standard
High
1Black wire
2Blue wire
NOTE The unit is factory set for standard static pressure
(X4A) at the time of shipping.
1Power supply
2Main switch
3Power supply wiring
4Transmission wiring
5Switch
6Fuse
7BS unit REYQ only
8Indoor unit
9Remote controller
1Outdoor unit
2Indoor unit
3Remote controller (optional accessories)
4Most downstream indoor unit
5For use with 2 remote controllers
6BS unit
X6A X7A
X5A X4A X3A
1 2
X6A X7A
X5A X4A X3A
1 2
X7A
X4A X3A
1 2
X6A X7A
X5A X4A X3A
1 2
X7A
X4A X3A
1 2

FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
Installation and operation manual
7
PRECAUTIONS
■A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
■For a group control remote controller, choose the remote
controller that suits the indoor unit which has the most functions.
■Do not ground the equipment on gas pipes, water pipes,
lightning rods or crossground with telephones. Improper
grounding could result in electric shock.
Control by 2 Remote Controllers (Controlling 1 indoor
unit by 2 remote controllers)
When using 2 remote controllers, one must be set to "MAIN" and the
other to "SUB".
MAIN/SUB CHANGEOVER
■Insert a wedge-head screwdriver into the recess between the
upper and lower part of the remote controller and, working from
the 2 positions, pry off the upper part. (See figure 15)
(The remote controller PC board is attached to the upper part of
the remote controller.)
■Turn the main/sub changeover switch on one of the two remote
controller PC boards to "S". (See figure 20)
(Leave the switch of the other remote controller set to "M".)
Computerised control (forced off and on/off operation)
1Wire specifications and how to perform wiring
- Connect input from outside to terminals T1 and T2 of the
terminal board (remote controller to transmission wiring).
(See figure 18)
2Actuation
- The following table explains "forced off" and "on/off
operations" in response to input A.
3How to select forced off and on/off operation
- Turn the power on and then use the remote controller to
select operation.
- Set the remote controller to the field set mode. For details,
refer to the chapter "How to set in the field", in the remote
controller manual.
- When in the field set mode, select mode No. 12, then set the
first code No. to "1". Then set second code (position) No. to
"01" for forced off and to "02" for on/off operation. (forced off
at factory set.) (See figure 21)
Centralized control
For centralized control, it is necessary to designate the group No. For
details, refer to the manual of each optional controller for centralized
control.
INSTALLATION OF THE DECORATION PANEL
Refer to the installation manual attached to the decoration panel.
After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel.
TEST OPERATION
Refer to the installation manual of the outdoor unit.
The operation lamp of the remote controller will flash when an error
occurs. Check the error code on the liquid crystal display to identify
the trouble. An explanation of error codes and the corresponding
trouble is provided on the "Caution for servicing" sticker on the indoor
units switch box.
PRECAUTIONS
In case something is wrong with the unit and it does not operate, refer
to the malfunction diagnosis label attached to the unit.
NOTE It is not necessary to designate an indoor unit address
when using group control. The address is
automatically set when the power is activated.
1Remote controller PC board
2Factory setting
3Only one remote controller needs to be changed
Wire specification Sheathed vinyl cord or cable (2 wire)
Gauge 0.75-1.25 mm2
Length Max. 100 m
External terminal Contact that can ensure the minimum
applicable load of 15 V DC, 10 mA
1Input A
Forced off on/off operation
Input "on" stops operation input off ➜on: turns on the unit
(impossible by remote controllers)
Input "off" enables control input on ➜off: turns off the unit by remote
controller
1Second code No.
2Mode No.
3First code No.
4Field set mode
1Drain pumping device (built-in) drain water is removed from the
room during cooling.
2Air filter (inside suction grill)
3Air outlet
4Decoration panel (optional), this is where the room air is drawn
in.
5Remote controller
1
2
3
5
4

Installation and operation manual
8FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
MAINTENANCE
How to clean the air filter
Clean the air filter when the display shows " " (TIME TO CLEAN
AIR FILTER).
Increase the frequency of cleaning if the unit is installed in a room
where the air is extremely contaminated.
If the dirt becomes impossible to clean, change the air filter. (Air filter
for exchange is optional.)
1Open the suction grille. (Only for bottom suction.)
Slide both knobs simultaneously as shown and then pull them
downward.
If chains are present, unhook the chains.
2Remove the air filters.
Remove the air filters by pulling their cloth upward (rear suction)
or backward (bottom suction).
3Clean the air filter.
Use vacuum cleaner (A) or wash the air filter with water (B).
When the air filter is very dirty, use soft brush and neutral
detergent.
Remove water and dry in the shade.
4Fix the air filter.
Align the two hanger brackets and push the two clips in their
place (pull the cloth if necessary).
Confirm that four hangers are fixed.
5Shut the air inlet grille. (Only for bottom suction.)
Refer to item no. 1.
6After turning on the power, press FILTER SIGN RESET button.
The "TIME TO CLEAN AIR FILTER" display is turned off.
Caution
■Only a qualified service person is allowed to perform
maintenance.
■Before obtaining access to terminal devices, all power
supply circuits must be interrupted.
■Do not use water or air of 50°C or higher for cleaning
air filters and outside panels.
■When cleaning the heat exchanger, be sure to remove
the switchbox, fan motor, auxiliary electric heater and
drain pump. Water or detergent may deteriorate the
insulation of electronic components and result in burn-
out of these components.
■If the main power supply is turned off during
operation, operation will restart automatically after the
power turns back on again.
rear suction
(A) Using a vacuum cleaner (B) Washing with water
bottom suction
rear suction
bottom suction

FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
Installation and operation manual
9
How to clean air outlet and outside panels
■Clean with soft cloth.
■When it is difficult to remove stains, use water of neutral
detergent.
■Clean the air inlet grille when it is shut.
Start up after a long stop
Confirm the following:
■Check that the air inlet and outlet are not blocked. Remove any
obstacle.
■Check if the earth is connected.
Clean the air filter and outside panels.
■After cleaning the air filter, make sure to attach it.
Turn on the main power supply switch.
■The control panel display lights when the power is turned on.
■To protect the unit, turn on the main power switch at least
6 hours before operation.
What to do when stopping the system for a long period
Turn on FAN OPERATION for half a day and dry the unit.
■Refer to the operation manual of the outdoor unit.
Cut off the power supply.
■When the main power switch is turned on, some wattage is
being consumed even if the system is not operating.
■The remote controller display is turned off when the main power
switch is turned off.
Disposal requirements
Dismantling of the unit, treatment of the refrigerant, oil and any other
parts, should be done in accordance with the relevant local and
national regulations.
NOTES
NOTE Do not use gasoline, benzene, thinner, polishing
powder, liquid insecticide. It may cause discoloring or
warping.
Do not let the indoor unit get wet. It may cause an
electric shock or a fire.

Installation and operation manual
10 FXSQ20~125M7V1B
VRV System air conditioner
4PW15110-1
WIRING DIAGRAM
33H.........................FLOAT SWITCH
A1P ........................PRINTED CIRCUIT BOARD
A2P ........................TERMINAL BOARD
C1R ........................CAPACITOR (FAN)
F1U ........................FUSE (250 V/10 A)
F2U ........................FIELD FUSE
HAP........................LIGHT EMITTING DIODE (SERVICE MONITOR - GREEN)
M1F ........................MOTOR (FAN)
M1P........................MOTOR (DRAIN PUMP)
Q2E ........................EARTH LEAK DETECTOR
R1T ........................THERMISTOR (AIR)
R2T,R3T .................THERMISTOR (REFRIGERANT)
RyF1-3 ...................MAGNETIC RELAY (FAN)
RyP ........................MAGNETIC RELAY (DRAIN PUMP)
X1M........................TERMINAL STRIP (POWER)
X2M........................TERMINAL STRIP (CONTROL)
T1R ........................TRANSFORMER (220-240 V/22 V)
Y1E ........................ELECTRONIC EXPANSION CIRCUIT
OPTIONAL PARTS
F3-5U .....................FUSE (250 V/16 A)
J1EH ......................ELECTRIC HEATER
K1R ........................MAGNETIC RELAY (J1EH)
ADAPTOR FOR WIRING
RyC,RyF.................MAGNETIC RELAY
RyH ........................MAGNETIC RELAY (J1EH)
F1U,F2U.................FUSE (250 V/5 A)
X1A,X2A.................CONNECTOR (WIRING ADAPTOR)
X1M........................TERMINAL STRIP
CONNECTOR FOR OPTIONAL PARTS
X16A ......................CONNECTOR (WIRING ADAPTOR)
X18A ......................CONNECTOR (WIRING ADAPTOR FOR ELECTRICAL APPENDICES)
: FIELD WIRING BLK : BLACK
: TERMINAL BLU : BLUE
: CONNECTOR ORG : ORANGE
: WIRE CLAMP PNK : PINK
: PROTECTIVE EARTH (SCREW) RED : RED
WHT : WHITE
YLW : YELLOW
,
RECEIVER/DISPLAY UNIT :
WIRED REMOTE CONTROLLER :
SWITCH BOX :
TRANSMISSION WIRING :
INPUT FROM OUTSIDE :
CENTRAL REMOTE CONTROLLER :
NOTE 1. WHEN USING THE CENTRAL REMOTE CONTROLLER, SEE MANUAL FOR CONNECTION TO THE UNIT.
2. X23A IS CONNECTED WHEN THE CENTRAL REMOTE CONTROLLER IS USED.
3. WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE, FORCED OFF OR ON/OFF CONTROL OPERATION CAN BE
SELECTED BY THE REMOTE CONTROLLER. SEE INSTALLATION MANUAL FOR MORE DETAILS.

NOTESNOTES

Zandvoordestraat 300, B-8400 Oostende, Belgium 4PWEN15110-1