background image

11

GB

D

F

I

NL

E

P

GR

RU

TR

Note:
If a torque wrench is not available, use the following method as a standard:
When you tighten the flare nut with a wrench, you will reach a point where
the tightening torque will abruptly increase. Turn the flare nut beyond this
point by the angle shown in the table above.

Caution:

Always remove the connecting pipe from the ball valve and braze it out-
side the unit.

- Brazing the connecting pipe while it is installed will heat the ball valve and

cause trouble or gas leakage. The piping, etc. inside the unit may also be
burned.

Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerat-
ing machine oil to coat flares and flange connections.

- The refrigerating machine oil will degrade if it is mixed with a large amount of

mineral oil.

Keep the ball valve closed until refrigerant charging to the pipes to be
added on site has been completed. Opening the valve before charging
the refrigerant may result in unit damage.

Do not use a leak detection additive.

Restriction

• If a flammable gas or air (oxygen) is used as the pressurization

gas, it may catch fire or explode.

• Do not use a refrigerant other than that indicated on the unit.

• Sealing with gas from a cylinder will cause the composition of

the refrigerant in the cylinder to change.

• Use a pressure gauge, charging hose, and other parts especially

for R410A.

• An electric leak detector for R22 cannot detect leaks of R410A.

• Do not use a haloid torch. (Leaks cannot be detected.)

Airtight test procedure

1. Nitrogen gas pressurization

(1) After pressurizing to the design pressure (4.15 MPa [601 psi]) using nitrogen gas, allow it to

stand for about one day. If the pressure does not drop, airtightness is good.

However, if the pressure drops, since the leaking point is unknown, the following bubble test

may also be performed.

(2) After the pressurization described above, spray the flare connection parts, brazed parts, flanges,

and other parts that may leak with a bubbling agent (Kyuboflex, etc.) and visually check for

bubbles.

(3) After the airtight test, wipe off the bubbling agent.

2. Pressurization using refrigerant gas and nitrogen gas

(1) Pressurizing to a gas pressure of approximately 0.2 MPa [29 psi], pressurize to the design

pressure (4.15 MPa [601 psi]) using nitrogen gas.

However, do not pressurize at one time. Stop during pressurization and check that the pres-

sure does not drop.

(2) Check for gas leaks by checking the flare connection parts, brazed parts, flanges, and other

parts which may leak using an R410A compatible electric leak detector.

(3) This test may be used together the with bubble type gas leak test.

9.3. Airtight test, evacuation, and refrigerant

charging

1

Airtight test

Perform with the ball valve of the heat source unit closed, and pressurize the
connection piping and the indoor unit from the service port provided on the ball
valve of the heat source unit. (Always pressurize from both the Gas pipe and
the Liquid pipe service ports.)

[Fig. 9.3.1] (P.4)

A

Nitrogen gas

B

To indoor unit

C

System analyzer

D

Lo knob

E

Hi knob

F

Ball valve

G

Liquid pipe

H

Gas pipe

I

Heat source unit

J

Service port

Observe the following restrictions when conducting an air tightness test to prevent
negative effects on the refrigerating machine oil. Also, with nonazeotropic refriger-
ant (R410A), gas leakage causes the composition to change and affects perform-
ance. Therefore, perform the airtightness test cautiously.

Caution:

Only use refrigerant R410A.

- The use of other refrigerant such as R22 or R407C, which contains chlorine, will

deteriorate the refrigerating machine oil or cause the compressor to malfunction.

2

Evacuation

Evacuate with the ball valve of the heat source unit closed and evacuate both
the connection piping and the indoor unit from the service port provided on the
ball valve of the heat source unit using a vacuum pump. (Always evacuate from
the service port of both the gas pipe and the liquid pipe.) After the vacuum
reaches 650 Pa [abs] [0.0943 psi/5 Torr], continue evacuation for at least one
hour or more.
* Never perform air purging using refrigerant.

[Fig. 9.3.2] (P.4)

A

System analyzer

B

Lo knob

C

Hi knob

D

Ball valve

E

Liquid pipe

F

Gas pipe

G

Service port

H

Three-way joint

I

Valve

J

Valve

K

R410A cylinder

L

Scale

M

Vacuum pump

N

To indoor unit

O

Heat source unit

Note:

Always add an appropriate amount of refrigerant. Also always seal the
system with liquid refrigerant. Too much or too little refrigerant will cause
trouble.

Use a gauge manifold, charging hose, and other parts for the refrigerant
indicated on the unit.

Use a graviometer. (One that can measure down to 0.1 kg [4 oz])

Use a vacuum pump with a reverse flow check valve.
(Recommended vacuum gauge: ROBINAIR 14830A Thermistor Vacuum
Gauge)
Also use a vacuum gauge that reaches 65 Pa [abs] [0.00943 psi/0.5 Torr]
or below after operating for five minutes.

3

Refrigerant Charging

Since the refrigerant used with the unit is nonazerotropic, it must be charged in
the liquid state. Consequently, when charging the unit with refrigerant from a
cylinder, if the cylinder does not have a syphon pipe, charge the liquid refriger-
ant by turning the cylinder upside-down as shown in Fig.9.3.3. If the cylinder
has a syphon pipe like that shown in the picture on the right, the liquid refriger-
ant can be charged with the cylinder standing upright. Therefore, give careful
attention to the cylinder specifications. If the unit should be charged with gas
refrigerant, replace all the refrigerant with new refrigerant. Do not use the re-
frigerant remaining in the cylinder.

[Fig. 9.3.3] (P.4)

A

Syphon pipe

B

In case of the cylinder having  no syphon pipe.

9.4. Thermal insulation of refrigerant piping

Be sure to give insulation work to refrigerant piping by covering high press. (liquid)
pipe and low press. (gas) pipe separately with enough thickness heat-resistant
polyethylene, so that no gap is observed in the joint between indoor unit and insu-
lating material, and insulating materials themselves. When insulation work is insuf-
ficient, there is a possibility of condensation drip, etc. Pay special attention to insu-
lation work to ceiling plenum.

[Fig. 9.4.1] (P.4)

A

Steel wire

B

Piping

C

Asphaltic oily mastic or asphalt

D

Heat insulation material A

E

Outer covering B

Glass fiber + Steel wire

Ad Heat - resistant polyethylene foam + Adhesive tape

Indoor

Vinyl tape

Floor exposed

Water-proof hemp cloth + Bronze asphalt

Heat source

Water-proof hemp cloth + Zinc plate + Oily paint

Note:

When using polyethylene cover as covering material, asphalt roofing shall
not be required.

No heat insulation must be provided for electric wires.

[Fig. 9.4.2] (P.4)

A

Liquid pipe

B

Gas pipe

C

Electric wire

D

Finishing tape

E

Insulator

[Fig. 9.4.3] (P.4)

Heat

insulation

material A

Outer

covering B

Содержание CITY MULTI PQHY-P72TGMU-A

Страница 1: ...r safe and correct use please read this installation manual thoroughly before installing the air conditioner unit MANUEL D INSTALLATION Veuillez lire le manuel d installation en entier avant d installer ce climatiseur pour éviter tout accident et vous assurer d une utilisation correcte For use with R410A ...

Страница 2: ...4 ø14 9 16 Anchoring hole C Top view A Piping space for side piping B Heat source unit C Service space front side D Top view D Anti vibration pad etc E Concrete base E Piping space for top piping F Piping space for side piping G Heat source unit H Front view A Water circulation pipe B Close valve C Close valve D Water outlet A Short circuit wire Connected before delivery from manufacturer B Pump i...

Страница 3: ...2 ø15 88 5 8 ø19 05 3 4 ø22 2 7 8 Ó 4 Branching header Downstream unit model total 200 CMY Y104 G 8 Branching header Downstream unit model total 400 CMY Y108 G Ô 10 Branching header Downstream unit model total 650 CMY Y1010 G Ï Downstream unit model total 72 73 400 Ì Branch kit model CMY Y102S G CMY Y102L G Fig 9 2 2 9 2 9 Fig 9 2 1 A B 1 3 A Ball valve Low press side flanged type B Ball valve Hig...

Страница 4: ... material C Lagging D Caulking material E Band F Waterproofing laye G Sleeve with edge H Lagging material I Mortar or other incombustible caulking J Incombustible heat insulation material A Power source B Transmission line C Ground screw D C C B B E F G H I J A LO HI LO HI B A K J L H M C D E N O F G I Fig 9 3 1 Fig 9 3 3 Fig 9 3 2 9 3 A A Nitrogen gas B To indoor unit C System analyzer D Lo knob ...

Страница 5: ... M1M2S TB5 07 IC M1M2S TB5 06 L 2 L1 MA MA MA OC M1M2 M1M2S TB7 TB3 52 OC c 1 c4 S System controller L3 L 6 L4 c 2 A B A B A B A B M1M2 c 2 c 1 c 1 c2 CN40 CN40 c 3 10 3 B A C 208 230 V B A 208 230 V E E D E E Fig 10 3 2 Fig 10 3 1 A Group 1 B Group 3 C Group 5 D Shielded wire E Sub remote controller Address A Change the jumper connec tor from CN41 to CN40 B SW2 1 ON C Keep the jumper connector on...

Страница 6: ...to be exceeded hazards due to lack of oxygen in the room could result When moving and reinstalling the air conditioner consult the dealer or an authorized technician If the air conditioner is installed improperly water leakage electric shock or fire may result After completing installation work make sure that refrigerant gas is not leaking If the refrigerant gas leaks and is exposed to a fan heate...

Страница 7: ... valve The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate Do not use the following tools that are used with conventional refriger ants Gauge manifold charge hose gas leak detector reverse flow check valve refrigerant charge base refrigerant recovery equipment If the conventional refrigerant and refrigerator oil are mixed in the R410A the refr...

Страница 8: ... excess air Compressed water may form in the low temperature sections of heat source unit Use a drainage pipe connected to the drain valve at the base of the unit to drain the water There is a water vent plug in the center of the heat exchanger water inlet head at the middle of the unit Use this for maintenance etc In addition do not allow any of the unit s electrical parts such as the solenoid va...

Страница 9: ...erator oil will dete riorate Never use existing refrigerant piping The large amount of chlorine in conventional refrigerant and refrigerator oil in the existing piping will cause the new refrigerant to deteriorate Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing If dust dirt or water gets into the refrigerant cycle the oil wi...

Страница 10: ...orque by torque wrench Copper pipe external dia mm in Tightening torque N m kg cm ø6 35 1 4 14 to 18 140 to 180 ø9 52 3 8 35 to 42 350 to 420 ø12 7 1 2 50 to 57 5 500 to 575 ø15 88 5 8 75 to 80 750 to 800 ø19 05 3 4 100 to 140 1000 to 1400 Tightening angle standard Pipe diameter mm in Tightening angle ø6 35 1 4 ø9 52 3 8 60 to 90 ø12 7 1 2 ø15 88 5 8 30 to 60 ø19 05 3 4 20 to 35 Fig 9 2 3 P 3 flar...

Страница 11: ...ic refriger ant R410A gas leakage causes the composition to change and affects perform ance Therefore perform the airtightness test cautiously Caution Only use refrigerant R410A The use of other refrigerant such as R22 or R407C which contains chlorine will deteriorate the refrigerating machine oil or cause the compressor to malfunction 2 Evacuation Evacuate with the ball valve of the heat source u...

Страница 12: ...heat source units whose power supply connector CN41 has been replaced by CN40 the shield terminal S of terminal block TB7 of the central control system should also be connected to the ground screw Fix the wiring securely in place with the cable strap at the bottom of the termi nal block so that the external force if not applied to the terminal block External force applied to the terminal block may...

Страница 13: ...A Change the jumper connector from CN41 to CN40 B SW2 1 ON C Keep the jumper connector on CN41 A Group 1 B Group 4 C Group 5 D Shielded wire E Sub remote controller Address Wiring Method and Address Settings a Always use shielded wire when making connections between the heat source unit OC and the indoor unit IC as well for all OC OC and IC IC wiring intervals b Use feed wiring to connect terminal...

Страница 14: ...light rain water etc when proceeding with the wiring and connections 3 The wire size is the minimum value for metal conduit wiring The power cord size should be 1 rank thicker consideration of voltage drops Make sure the power supply voltage does not drop more than 10 4 Specific wiring requirements should adhere to the wiring regulations of the region 5 Power supply cords of parts of appliances fo...

Страница 15: ...rent utilisez le réfrigérant R410A spécifié sur l appareil Lorsqu un réfrigérant différent est mélangé au réfrigérant d origine il se peut que le cycle du réfrigérant ne fonctionne pas correctement et que l appareil soit endommagé Si le climatiseur est installé dans une pièce relativement petite certaines mesures doivent être prises pour éviter que la concentration de réfrigé rant ne dépasse le se...

Страница 16: ...nterventions techniques Si l appareil est raccordé au secteur sans fonctionner le chauffage du carter est toujours sous tension au niveau du compresseur 1 2 Précautions à prendre avec les dispo sitifs utilisant le réfrigérant R410A Précaution N utilisez pas les tuyaux de réfrigérant actuels Le vieux réfrigérant et l huile réfrigérante se trouvant dans les tuyaux con tiennent une large quantité de ...

Страница 17: ...e il est conseillé de monter une base anti vibrations sur le socle de support de l appareil Fig 6 1 2 P 2 D Coussinet anti vibrations etc E Socle en béton Avertissement Installez toujours l appareil dans un endroit pouvant supporter son poids Dans le cas contraire l appareil pourrait tomber et par conséquent bles ser quelqu un Effectuez les travaux nécessaires afin d assurer a protection de l appa...

Страница 18: ...iez que le niveau d oxygène dissous de l eau ne dépasse pas 1 mg r 2 Norme de qualité de l eau Référence Guideline of Water Quality for Refrigeration and Air Conditioning Equipment Directive relative à la qualité de l eau pour le matériel de réfrigération et de climatisation JRA GL02E 1994 3 Contacter un spécialiste du contrôle de la qualité des eaux pour en savoir plus sur les méthodes de contrôl...

Страница 19: ...els Jauge collectrice tuyau flexible de remplissage détecteur de fuites de gaz valve de contrôle base de remplissage de réfrigérant jauge à vide équipements de récupération de réfrigérant Il se peut que l huile réfrigérante se détériore à la suite du mélange d un réfrigérant traditionnel à l huile réfrigérante Il se peut que l huile se détériore si de l eau y est mélangée Le réfrigérant R410A ne c...

Страница 20: ...9 1 13 2 16 6 19 7 24 0 dimension de l évasement mm taille de l écrou évasé mm diamètre extérieur ø6 35 ø9 52 ø12 70 ø15 88 ø19 05 taille en pouces 1 4 3 8 1 2 5 8 3 4 dimension B R410A 17 0 22 0 26 0 29 0 36 0 Fig 9 2 2 P 3 A Soupape à bille Côté gaz raccordement à brides B Soupape à bille Côté liquide raccordement évasé C Cette figure montre la soupape complètement ouverte A Tige de la valve Ent...

Страница 21: ...istor ROBINAIR 14830A Utiliser également une jauge à vide pouvant atteindre 65 Pa abs 0 00943 psi 0 5 Torr maximum après cinq minutes d utilisation 3 Ajout du réfrigérant Etant donné que le réfrigérant utilisé dans cet appareil est nonazéotropique il doit être dans un état liquide lorsqu ajouté Par conséquent lorsque vous char gez l appareil de réfrigérant à l aide d un cylindre si celui ci n est ...

Страница 22: ...ls source de chaleur ou le câblage avec le système de contrôle centralisé au bloc de terminaux de le contrôle centralisé TB7 Lors de l utilisation de câblage blindé raccordez la terre blindée de la ligne de transmission de l appareil intérieur à la vis de terre et raccordez la terre blindée de la ligne située entre les appareils source de chaleur et la ligne de transmission du système de contrôle ...

Страница 23: ... M2 et à la borne S des câbles de transmission du bloc de l appareil intérieur IC c Raccorder les bornes 1 M1 et 2 M2 du bloc terminal des câbles de transmission de l appareil intérieur IC qui possède l adresse la plus récente au sein d un même groupe au bloc terminal de la commande à distance RC d Raccordez les bornes M1 M2 et la borne S du bloc de terminaux pour le contrôle centralisé TB7 sur l ...

Страница 24: ...jusqu à ce que la température des tuyaux atteigne 35 C 95 F il fonctionne lentement pendant les 2 minutes qui suivent puis il fonctionne selon le préréglage Commande de réglage de la chaleur Le système est en train d être mis en marche Utilisez de nouveau la télécommande lorsque HO ou PLEASE WAIT a dis paru de l affichage Lorsque l appareil s arrête après le mode de refroidissement il continue de ...

Страница 25: ......

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Страница 28: ...HIYODA KU TOKYO 100 8310 JAPAN Please be sure to put the contact address telephone number on this manual before handing it to the customer This product is designed and intended for use in the residential commer cial and light industrial environment Printed in Japan ...

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