Mitsubishi electric PUHZ-RP250YKA User Manual [ru]

Air-Conditioners PUHZ-RP•HA4 PUHZ-RP•KA

INSTALLATION MANUAL

For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing the air-conditioner unit.

INSTALLATIONSHANDBUCH

Aus Sicherheitsgründen und zur richtigen Verwendung vor der Installation die vorliegende Bedienungsanleitung und die Installationsanleitung der Innenanlage gründlich durchlesen die Klimaanlage.

MANUEL D’INSTALLATION

Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil intérieur pour une utilisation sûre et correcte.

INSTALLATIEHANDLEIDING

Lees deze handleiding en de installatiehandleiding van het binnenapparaat zorgvuldig door voordat u met het installeren van de airconditioner begint.

MANUAL DE INSTALACIÓN

Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalación de la unidad interior antes de instalar la unidad de aire acondicionado.

MANUALE DI INSTALLAZIONE

Per un uso sicuro e corretto, leggere attentamente il presente manuale ed il manuale d’installazione dell’unità interna prima di installare il condizionatore d’aria.

MANUAL DE INSTALAÇÃO

Para uma utilização segura e correcta, leia atentamente este manual e o manual de instalação da unidade interior antes de instalar o aparelho de ar condicionado.

INSTALLATIONSMANUAL

Læs af sikkerhedshensyn denne manual samt manualen til installation af indendørsenheden grundigt, før du installerer klimaanlægget.

INSTALLATIONSMANUAL

Läs bruksanvisningen och inomhusenhetens installationshandbok noga innan luftkonditioneringen installeras så att den används på ett säkert och korrekt sätt.

FOR INSTALLER

FÜR INSTALLATEURE

POUR L’INSTALLATEUR

VOOR DE INSTALLATEUR

PARA EL INSTALADOR

PER L’INSTALLATORE

PARA O INSTALADOR

TIL INSTALLATØREN

FÖR INSTALLATÖREN

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Emniyetli ve doğru kullanım için, klima cihazını monte etmeden önce bu kılavuzu ve iç ünite montaj kılavuzunu tamamıyla okuyun.

Türkçe

Contents

1. Safety precautions.................................................. 2

2. Installation location................................................. 3

3. Installing the outdoor unit............................................ 5

4. Installing the refrigerant piping........................................ 5

5. Drainage piping work................................................ 9

Note: This symbol mark is for EU countries only. This symbol mark is according to the directive 2002/96/EC Article 10 Information for users and Annex IV.

Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which can be recycled and reused. This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from your household waste. Please, dispose of this equipment at your local community waste collection/recycling centre. In the European Union there are separate collection systems for used electrical and electronic product. Please, help us to conserve the environment we live in!

Caution:

• Do not vent R410A into the Atmosphere:

• R410A is a Fluorinated Greenhouse gas, covered by the Kyoto Protocol, with a Global Warming Potential (GWP)=1975.

6. Electrical work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7. Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8. Initial settings for refrigerant leakage detection function . . . . . . . . . . . . . . . . . . 12

9. Special Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10. System control (Fig. 10-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1. Safety precautions

►

Before installing the unit, make sure you read all the “Safety precautions”.

► Please report to or take consent by the supply authority before connec-

tion to the system. ► Equipment complying with IEC/EN 61000-3-12 (PUHZ-RP100/125/140VKA) ► PUHZ-RP200/250Y “This equipment complies with IEC 61000-3-12 provided that the short-

circuit power S

between the user’s supply and the public system. It is the responsibility

of the installer or user of the equipment to ensure, by consulation with

the distribution network operator if necessary, that the equipment is

connected only to a supply with a short-circuit power S

equal to S S

sc (*1)

sc is greater than or equal to Ssc (*1) at the interface point

sc greater than or

sc (*1)”

Model Ssc (MVA) PUHZ-RP200Y 1.35 PUHZ-RP250Y 1.49

Warning: Describes precautions that must be observed to prevent danger of injury or death to the user.

Caution: Describes precautions that must be observed to prevent damage to the unit.

After installation work has been completed, explain the “Safety Precautions,” use, and maintenance of the unit to the customer according to the information in the Operation Manual and perform the test run to ensure normal operation. Both the Installation Manual and Operation Manual must be given to the user for keeping. These manuals must be passed on to subsequent users.

: Indicates a part which must be grounded.

Warning: Carefully read the labels afﬁ xed to the main unit.

Warning:

• The unit must not be installed by the user. Ask a dealer or an authorized technician to install the unit. If the unit is installed incorrectly, water leakage, electric shock, or ﬁ re may result.

• For installation work, follow the instructions in the Installation Manual and use tools and pipe components speciﬁ cally made for use with R410A re- frigerant. The R410A refrigerant in the HFC system is pressurized 1.6 times the pressure of usual refrigerants. If pipe components not designed for R410A refrigerant are used and the unit is not installed correctly, the pipes may burst and cause damage or injuries. In addition, water leakage, electric shock, or ﬁ re may result.

• The unit must be installed according to the instructions in order to minimize the risk of damage from earthquakes, typhoons, or strong winds. An incorrectly installed unit may fall down and cause damage or injuries.

• The unit must be securely installed on a structure that can sustain its weight. If the unit is mounted on an unstable structure, it may fall down and cause damage or injuries.

• If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Consult a dealer regarding the appropriate measures to prevent the allowable concentration from being exceeded. Should the refrigerant leak and cause the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result.

• Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a ﬂ ame, poisonous gases will be released.

• All electric work must be performed by a qualiﬁ ed technician according to local regulations and the instructions given in this manual. The units must be powered by dedicated power lines and the correct voltage and circuit breakers must be used. Power lines with insufﬁ cient capacity or incorrect electrical work may result in electric shock or ﬁ re.

1.1. Before installation

Caution:

• Do not use the unit in an unusual environment. If the air conditioner is installed in areas exposed to steam, volatile oil (including machine oil), or sulfuric gas, areas exposed to high salt content such as the seaside, or areas where the unit will be covered by snow, the performance can be signiﬁ cantly reduced and the internal parts can be damaged.

• Do not install the unit where combustible gases may leak, be produced, ﬂ ow, or accumulate. If combustible gas accumulates around the unit, ﬁ re or explosion may result.

• Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. If the pipes are not connected correctly, the unit will not be properly grounded and electric shock may result.

• Use only speciﬁ ed cables for wiring. The connections must be made se- curely without tension on the terminals. If the cables are connected or installed incorrectly, overheating or ﬁ re may result.

• The terminal block cover panel of the outdoor unit must be ﬁ rmly attached. If the cover panel is mounted incorrectly and dust and moisture enter the unit, electric shock or ﬁ re may result.

• When installing or moving the air conditioner, use only the speciﬁ ed refrig- erant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. Air enclosed in the lines can cause pressure peaks resulting in a rupture and other hazards.

• Use only accessories authorized by Mitsubishi Electric and ask a dealer or an authorized technician to install them. If accessories are incorrectly installed, water leakage, electric shock, or ﬁ re may result.

• Do not alter the unit. Consult a dealer for repairs. If alterations or repairs are not performed correctly, water leakage, electric shock, or ﬁ re may re- sult.

• The user should never attempt to repair the unit or transfer it to another location. If the unit is installed incorrectly, water leakage, electric shock, or ﬁ re may result. If the air conditioner must be repaired or moved, ask a dealer or an authorized technician.

• After installation has been completed, check for refrigerant leaks. If refrigerant leaks into the room and comes into contact with the ﬂ ame of a heater or portable cooking range, poisonous gases will be released.

• The outdoor unit produces condensation during the heating operation. Make sure to provide drainage around the outdoor unit if such condensation is likely to cause damage.

• When installing the unit in a hospital or communications office, be prepared for noise and electronic interference. Inverters, home appliances, high-frequency medical equipment, and radio communications equipment can cause the air conditioner to malfunction or breakdown. The air conditioner may also affect medical equipment, disturbing medical care, and communications equipment, harming the screen display quality.

1. Safety precautions

1.2. Before installation (relocation)

Caution:

• Be extremely careful when transporting or installing the units. Two or more persons are needed to handle the unit, as it weighs 20 kg or more. Do not grasp the packaging bands. Wear protective gloves to remove the unit from the packaging and to move it, as you can injure your hands on the ﬁ ns or the edge of other parts.

• Be sure to safely dispose of the packaging materials. Packaging materials, such as nails and other metal or wooden parts may cause stabs or other injuries.

1.3. Before electric work

Caution:

• Be sure to install circuit breakers. If not installed, electric shock may result.

• For the power lines, use standard cables of sufﬁ cient capacity. Otherwise, a short circuit, overheating, or ﬁ re may result.

• When installing the power lines, do not apply tension to the cables. If the connections are loosened, the cables can snap or break and overheating or ﬁ re may result.

1.4. Before starting the test run

Caution:

• Turn on the main power switch more than 12 hours before starting operation. Starting operation just after turning on the power switch can severely damage the internal parts. Keep the main power switch turned on during the operation season.

• Before starting operation, check that all panels, guards and other protective parts are correctly installed. Rotating, hot, or high voltage parts can cause injuries.

• Do not touch any switch with wet hands. Electric shock may result.

• The base and attachments of the outdoor unit must be periodically checked for looseness, cracks or other damage. If such defects are left uncorrected, the unit may fall down and cause damage or injuries.

• Do not clean the air conditioner unit with water. Electric shock may result.

• Tighten all ﬂ are nuts to speciﬁ cation using a torque wrench. If tightened too much, the ﬂ are nut can break after an extended period and refrigerant can leak out.

• Be sure to ground the unit. Do not connect the ground wire to gas or water pipes, lightning rods, or telephone grounding lines. If the unit is not properly grounded, electric shock may result.

• Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and molded case circuit breaker) with the speciﬁ ed capacity. If the circuit breaker capacity is larger than the speciﬁ ed capacity, breakdown or ﬁ re may result.

• Do not touch the refrigerant pipes with bare hands during operation. The refrigerant pipes are hot or cold depending on the condition of the ﬂ owing refrigerant. If you touch the pipes, burns or frostbite may result.

• After stopping operation, be sure to wait at least ﬁ ve minutes before turn- ing off the main power switch. Otherwise, water leakage or breakdown may result.

1.5. Using R410A refrigerant air conditioners

Caution:

• Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust. Use pipes with the speciﬁ ed thick- ness. (Refer to 4.1.) Note the following if reusing existing pipes that carried R22 refrigerant.

- Replace the existing ﬂ are nuts and ﬂ are the ﬂ ared sections again.

- Do not use thin pipes. (Refer to 4.1.)

• Store the pipes to be used during installation indoors and keep both ends of the pipes sealed until just before brazing. (Leave elbow joints, etc. in their packaging.) If dust, debris, or moisture enters the refrigerant lines, oil deterioration or compressor breakdown may result.

• Use ester oil, ether oil, alkylbenzene oil (small amount) as the refrigeration oil applied to the ﬂ ared sections. If mineral oil is mixed in the refrigeration oil, oil deterioration may result.



Fig. 1-1

• Do not use refrigerant other than R410A refrigerant. If another refrigerant is used, the chlorine will cause the oil to deteriorate.

• Use the following tools speciﬁ cally designed for use with R410A refrigerant. The following tools are necessary to use R410A refrigerant. Contact your nearest dealer for any questions.

Gauge manifold Flare tool

Charge hose Size adjustment gauge

Gas leak detector Vacuum pump adapter

Torque wrench Electronic refrigerant charging scale

• Be sure to use the correct tools. If dust, debris, or moisture enters the re-

frigerant lines, refrigeration oil deterioration may result.

• Do not use a charging cylinder. If a charging cylinder is used, the compo-

sition of the refrigerant will change and the efﬁ ciency will be lowered.

Tools (for R410A)

1.6. Accessories of outdoor unit (Fig. 1-1) (RP200/250)

The parts show in the left are the accessories of this unit, which are afﬁ xed to the

inside of the service panel. 1 Joint pipe

.........

×1

2. Installation location

Fig. 2-1

2.1. Refrigerant pipe (Fig. 2-1)

► Check that the difference between the heights of the indoor and outdoor

units, the length of refrigerant pipe, and the number of bends in the pipe are within the limits shown below.

Models

RP35, 50, 60, 71 Max. 50 m Max. 30 m Max. 15 RP100, 125, 140 Max. 75 m Max. 30 m Max. 15

RP200, 250 Max. 120 m Max. 30 m Max. 15

A Pipe length (one way)

B Height difference

Number of bends

(one way)

• Height difference limitations are binding regardless of which unit, indoor or out-

door, is positioned higher.

D Indoor unit E Outdoor unit

2. Installation location

■

RP35, 50

300+23

600

150

500

■

RP100, 125, 140, 200, 250

800

Fig. 2-3

330

225

1338

30+25

600

Fig. 2-2

■

RP60, 71

330+30

943

175

1050

600

Fig. 2-4

2.2. Choosing the outdoor unit installation location

• Avoid locations exposed to direct sunlight or other sources of heat.

• Select a location from which noise emitted by the unit will not inconvenience neighbors.

• Select a location permitting easy wiring and pipe access to the power source

950

370

and indoor unit.

• Avoid locations where combustible gases may leak, be produced, ﬂ ow, or accu- mulate.

• Note that water may drain from the unit during operation.

• Select a level location that can bear the weight and vibration of the unit.

• Avoid locations where the unit can be covered by snow. In areas where heavy snow fall is anticipated, special precautions such as raising the installation location or installing a hood on the air intake must be taken to prevent the snow from blocking the air intake or blowing directly against it. This can reduce the airﬂ ow and a malfunction may result.

• Avoid locations exposed to oil, steam, or sulfuric gas.

• Use the transportation handles of the outdoor unit to transport the unit. If the unit is carried from the bottom, hands or ﬁ ngers may be pinched.

2.3. Outline dimensions (Outdoor unit) (Fig. 2-2)

2.4. Ventilation and service space

2.4.1. Windy location installation

When installing the outdoor unit on a rooftop or other location unprotected from the wind, situate the air outlet of the unit so that it is not directly exposed to strong winds. Strong wind entering the air outlet may impede the normal airflow and a malfunction may result. The following shows three examples of precautions against strong winds. 1 Face the air outlet towards the nearest available wall about 50 cm away from the

wall. (Fig. 2-3)

2 Install an optional air guide if the unit is installed in a location where strong winds

from a typhoon, etc. may directly enter the air outlet. (Fig. 2-4)

A Air outlet guide

3 Position the unit so that the air outlet blows perpendicularly to the seasonal wind

direction, if possible. (Fig. 2-5)

B Wind direction

2.4.2. When installing a single outdoor unit (Refer to the last page)

Minimum dimensions are as follows, except for Max., meaning Maximum dimensions, indicated. The ﬁ gures in parentheses are for RP100-250 models. Refer to the ﬁ gures for each case.

Obstacles at rear only (Fig. 2-6)

Obstacles at rear and above only (Fig. 2-7)

Obstacles at rear and sides only (Fig. 2-8)

* 350 for RP35, 50.

Obstacles at front only (Fig. 2-9)

* When using an optional air outlet guide, the clearance for RP100-250 models is 500 mm or

more.

Obstacles at front and rear only (Fig. 2-10)

* When using an optional air outlet guide, the clearance for RP100-250 models is 500 mm or

more.

Obstacles at rear, sides, and above only (Fig. 2-11)

* 350 for RP35, 50.

• Do not install the optional air outlet guides for upward airﬂ ow.

2.4.3. When installing multiple outdoor units (Refer to the last page)

Leave 350 mm for RP35, 50 and 10 mm for RP60-250 space or more between the units. The ﬁ gures in parentheses are for RP100-250 models.

Obstacles at rear only (Fig. 2-12)

Obstacles at rear and above only (Fig. 2-13)

• No more than 3 units must be installed side by side. In addition, leave space as shown.

• Do not install the optional air outlet guides for upward airﬂ ow.

Obstacles at front only (Fig. 2-14)

* When using an optional air outlet guide, the clearance for RP100-250 models is 1000 mm

or more.

Obstacles at front and rear only (Fig. 2-15)

* When using an optional air outlet guide, the clearance for RP100-250 models is 1000 mm

or more.

Single parallel unit arrangement (Fig. 2-16)

* When using an optional air outlet guide installed for upward airﬂ ow, the clearance is 500 (1000) mm or more.

Multiple parallel unit arrangement (Fig. 2-17)

* When using an optional air outlet guide installed for upward airﬂ ow, the clearance is 1000 (1500) mm or more.

Stacked unit arrangement (Fig. 2-18)

• The units can be stacked up to two units high.

• No more than 2 stacked units must be installed side by side. In addition, leave space as

shown.

Fig. 2-5

3. Installing the outdoor unit

Max. 18 for RP35, 50

Max. 30 for RP60-250

 M10 (3/8") bolt  Base  As long as possible.  Vent  Set deep in the ground





(mm)

• Be sure to install the unit in a sturdy, level surface to prevent rattling noises during peration. (Fig. 3-1)

Foundation bolt M10 (3/8") Thickness of concrete 120 mm Length of bolt 70 mm Weight-bearing capacity 320 kg

• Make sure that the length of the foundation bolt is within 30 mm of the bottom surface of the base.

• Secure the base of the unit ﬁ rmly with four-M10 foundation bolts in sturdy loca- tions.

Installing the outdoor unit

• Do not block the vent. If the vent is blocked, operation will be hindered and breakdown may result.

• In addition to the unit base, use the installation holes on the back of the unit to attach wires, etc., if necessary to install the unit. Use self-tapping screws (ø5 × 15 mm or less) and install on site.

Warning:

• The unit must be securely installed on a structure that can sustain its weight. If the unit is mounted on an unstable structure, it may fall down and cause damage or injuries.

■

RP35, 50

■

RP35, 50

500

Min. 350

Min. 650

150



500

800

150

300

330

■

RP60, 71

■

RP60, 71



600 600Min. 360

175 175

Min. 10

950

Fig. 3-1

4. Installing the refrigerant piping

4.1. Precautions for devices that use R410A refrigerant

• Refer to 1.5. for precautions not included below on using air conditioners with R410A refrigerant.

• Use ester oil, ether oil, alkylbenzene oil (small amount) as the refrigeration oil applied to the ﬂ ared sections.

• Use C1220 copper phosphorus, for copper and copper alloy seamless pipes, to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses specified in the table to the below. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust.

Always apply no-oxidation brazing when brazing the pipes, otherwise, the

compressor will be damaged.

■

RP100-250



■

RP100-250

600 600

Min. 460

330

370

225 225

1050Min. 10

Warning: When installing or moving the air conditioner, use only the speciﬁ ed refriger- ant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. Air enclosed in the lines can cause pressure peaks resulting in a rupture and other hazards.

Pipe size (mm)

Thickness (mm) 0.8 0.8 0.8 1.0 1.0 1.0 1.0 1.0

• Do not use pipes thinner than those speciﬁ ed above.

• Use 1/2 H or H pipes if the diameter is 22.2 mm or larger.

• For RP250, use 1/2 H or H pipes if the diameter is 19.05 mm or larger.

[6.35 [9.52 [12.7 [15.88 [19.05 [22.2 [25.4 [28.58

33025

370

4. Installing the refrigerant piping

A B

0.5

90op

A Flare cutting dimensions B Flare nut tightening torque

A (Fig. 4-1)

Copper pipe O.D.

(mm) ø6.35 8.7 - 9.1 ø9.52 12.8 - 13.2 ø12.7 16.2 - 16.6

ø15.88 19.3 - 19.7 ø19.05 23.6 - 24.0

B (Fig. 4-1)

Copper pipe O.D.

(mm) ø6.35 17 14 - 18 ø6.35 22 34 - 42 ø9.52 22 34 - 42 ø12.7 26 49 - 61 ø12.7 29 68 - 82

ø15.88 29 68 - 82 ø15.88 36 100 - 120 ø19.05 36 100 - 120

øA

45op 2o

R0.4~R0.8

Fig. 4-1

Flare dimensions

øA dimensions (mm)

Flare nut O.D.

(mm)

A Die B Copper pipe

Fig. 4-2

Tightening torque

(N·m)

4.2. Connecting pipes (Fig. 4-1)

• When commercially available copper pipes are used, wrap liquid and gas pipes with commercially available insulation materials (heat-resistant to 100 °C or more, thickness of 12 mm or more).

• The indoor parts of the drain pipe should be wrapped with polyethylene foam insulation materials (speciﬁ c gravity of 0.03, thickness of 9 mm or more).

• Apply thin layer of refrigerant oil to pipe and joint seating surface before tightening ﬂ are nut.

• Use two wrenches to tighten piping connections.

• Use leak detector or soapy water to check for gas leaks after connections are completed.

• Apply refrigerating machine oil over the entire ﬂ are seat surface.

• Use the ﬂ are nuts for the following pipe size.

Gas side Pipe size (mm)

Liquid side Pipe size (mm)

• When bending the pipes, be careful not to break them. Bend radii of 100 mm to 150 mm are sufﬁ cient.

• Make sure the pipes do not contact the compressor. Abnormal noise or vibration may result.

1 Pipes must be connected starting from the indoor unit. Flare nuts must be tightened with a torque wrench. 2 Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil (Ap-

plied on site).

• When usual pipe sealing is used, refer to Table 1 for ﬂ aring of R410A refrigerant pipes.

The size adjustment gauge can be used to conﬁ rm A measurements.

Table 1 (Fig. 4-2)

Copper pipe O.D.

ø6.35 (1/4") 0 - 0.5 1.0 - 1.5 ø9.52 (3/8") 0 - 0.5 1.0 - 1.5

ø12.7 (1/2") 0 - 0.5 1.0 - 1.5 ø15.88 (5/8") 0 - 0.5 1.0 - 1.5 ø19.05 (3/4") 0 - 0.5 1.0 - 1.5

3 Use the following procedure for connecting the gas-side piping. (Fig.4-3) 1 Braze the E Joint pipe provided to the outdoor unit using locally procured braz-

ing materials and C Local piping without oxygen. 2 Connect the E Joint pipe to the gas-side Stop valve. Use 2 wrenches to tighten the ﬂ are nut. * If order is reversed, refrigerant leak occurs because of the part damaging by

brazinig ﬁ re.

• For PEA-RP200, 250, 400, 500GA The method of pipe connection is brazing connection.

Gas side Pipe size (mm)

Liquid side Pipe size (mm)

(mm)

RP35, 50 RP60, 71

[12.7 [15.88 [15.88 [25.4 [25.4 [6.35 [9.52 [9.52 [9.52 [12.7

Flare tool for R410A Flare tool for R22·R407C

PEA-200 PEA-250 PEA-400 PEA-500

[25.4 [25.4 [25.4 [25.4 [9.52 [12.7 [9.52 [12.7

RP100-140

A (mm)

Clutch type

RP200 RP250

AStop valve BSeal section CLocal piping DDouble spanner section EJoint pipe FPipe cover

Fig. 4-3



AFront piping cover BPiping cover CStop valve DService panel EBend radius : 100mm -150mm

Fig. 4-4

4.3. Refrigerant piping (Fig. 4-4)

For RP35, 50

Remove the service panel D (1 screw).

For RP60-250 Remove the service panel D (3 screws) and the front piping cover A (2 screws) and rear piping cover B (2 screws:RP60, 71) (4 screws:RP100-250). 1 Perform refrigerant piping connections for the indoor/outdoor unit when the out-

door unit’s stop valve is completely closed.

2 Vacuum-purge air from the indoor unit and the connection piping. 3 After connecting the refrigerant pipes, check the connected pipes and the indoor









unit for gas leaks. (Refer to 4.4 Refrigerant pipe airtight testing method)

4 A high-performance vacuum pump is used at the stop valve service port to main-

tain a vacuum for an adequate time (at least one hour after reaching –101 kPa (5 Torr)) in order to vacuum dry the inside of the pipes. Always check the degree of vacuum at the gauge manifold. If there is any moisture left in the pipe, the degree of vacuum is sometimes not reached with short-time vacuum application.

After vacuum drying, completely open the stop valves (both liquid and gas) for

the outdoor unit. This completely links the indoor and outdoor refrigerant circuits.

•

If the vacuum drying is inadequate, air and water vapor remain in the refrigerant circuits and can cause abnormal rise of high pressure, abnormal drop of low pressure, deterioration of the refrigerating machine oil due to moisture, etc.

• If the stop valves are left closed and the unit is operated, the compressor and

control valves will be damaged.

• Use a leak detector or soapy water to check for gas leaks at the pipe connec-

tion sections of the outdoor unit.

• Do not use the refrigerant from the unit to purge air from the refrigerant lines.

• After the valve work is completed, tighten the valve caps to the correct torque:

20 to 25 N·m (200 to 250 kgf·cm).

Failure to replace and tighten the caps may result in refrigerant leakage. In

addition, do not damage the insides of the valve caps as they act as a seal to prevent refrigerant leakage.

5 Use sealant to seal the ends of the thermal insulation around the pipe connec-

tion sections to prevent water from entering the thermal insulation.

4. Installing the refrigerant piping

A Stop valve <Liquid side> B Stop valve <Gas side> C Service port D Open/Close section

Fig. 4-5

(1) (2)

















Fig. 4-6 Fig. 4-7

A Valve B Unit side C Handle D Cap E Local pipe side F Pipe cover G Service port H Wrench hole

I Double spanner section

(Do not apply a spanner other than to this section.

Doing so would cause coolant leaks.) J Seal section (Seal the end of the heat insulation material at

the pipe connection section with whatever seal

material you have on hand so that water does not

inﬁ ltrate the heat insulation material.)

E F

E Local pipe F Sealed, same way for gas side G Pipe cover H Do not use a wrench here.

Refrigerant leakage may result. I Use two wrenches here.











4.4. Refrigerant pipe airtight testing method (Fig.4-5)

(1)

Connect the testing tools.

• Make sure the stop valves

• Add pressure to the refrigerant lines through the service port C of the liquid stop valve A.

(2)

Do not add pressure to the speciﬁ ed pressure all at once; add pressure little by

little.

1 Pressurize to 0.5 MPa (5 kgf/cm

pressure does not decrease.

2 Pressurize to 1.5 MPa (15 kgf/cm

pressure does not decrease.

3 Pressurize to 4.15 MPa (41.5 kgf/cm

perature and refrigerant pressure.

(3)

If the speciﬁ ed pressure holds for about one day and does not decrease, the

pipes have passed the test and there are no leaks.

• If the surrounding temperature changes by 1 °C, the pressure will change by about 0.01 MPa (0.1 kgf/cm

(4)

If the pressure decreases in steps (2) or (3), there is a gas leak. Look for the

source of the gas leak.

are closed and do not open them.

A B

G), wait five minutes, and make sure the

G), wait ﬁ ve minutes, and make sure the

G) and measure the surrounding tem-

G). Make the necessary corrections.

4.5. Stop valve opening method

The stop valve opening method varies according to the outdoor unit model. Use the









appropriate method to open the stop valves. (1)

Gas side of RP100-250 (Fig. 4-6)

1 Remove the cap, pull the handle toward you and rotate 1/4 turn in a counter-

clockwise direction to open.

2 Make sure that the stop valve is open comletely, push in the handle and rotate

the cap back to its original position.

(2)

Liquid side of RP100-250 and Gas/Liquid side of RP35-71 (Fig. 4-7)

1 Remove the cap and turn the valve rod counterclockwise as far as it will go with

the use of a 4 mm hexagonal wrench. Stop turning when it hits the stopper. (ø9.52: Approximately 10 revolutions) 2 Make sure that the stop valve is open completely, push in the handle and rotate

the cap back to its original position. Refrigerant pipes are protectively wrapped for RP60-250

• The pipes can be protectively wrapped up to a diameter of ø90 before or after

connecting the pipes. Cut out the knockout in the pipe cover following the groove

and wrap the pipes. Pipe inlet gap for RP60-250

• Use putty or sealant to seal the pipe inlet around the pipes so that no gaps re-

main. (If the gaps are not closed, noise may be emitted or water and dust will

enter the unit and breakdown may result.)

* The ﬁ gure to the left is an example only. The stop valve shape, service port position, etc., may vary according to the model. * Turn section A only. (Do not further tighten sections A and B

together.)

C Charge hose D Service port

Precautions when using the charge valve (Fig.4-8)

Do not tighten the service port too much when installing it, otherwise, the valve core could be deformed and become loose, causing a gas leak. After positioning section B in the desired direction, turn section A only and tighten it. Do not further tighten sections A and B together after tightening section A.

Fig. 4-8

4.6. Addition of refrigerant

• Additional charging is not necessary if the pipe length does not exceed 30 m.

• If the pipe length exceeds 30m, charge the unit with additional R410A refrigerant according to the permitted pipe lengths in the chart below.

* When the unit is stopped, charge the unit with the additional refrigerant

through the liquid stop valve after the pipe extensions and indoor unit have been vacuumized.

When the unit is operating, add refrigerant to the gas check valve using a

safety charger. Do not add liquid refrigerant directly to the check valve.

* After charging the unit with refrigerant, note the added refrigerant amount on

the service label (attached to the unit).

Refer to the “1.5. Using R410A refrigerant air conditioners” for more informa-

tion.

Outdoor unit

RP200

RP250 1.2 kg 2.4 kg 3.6 kg 4.8 kg

30 m andless 31-40 m andless 41-50 m and less 51-60 m and less 61-70 m andless 71-120 m and less

No additional

charge necessary

0.9 kg 1.8 kg 2.7 kg 3.6 kg

Amount of additionalrefrigerant charge (kg)

• Be careful when installing multiple units. Connecting to an incorrect indoor unit can lead to abnormally high pressure and have a serious effect on operation performance.

Model

RP35, 50 RP60, 71 RP100-140

A+B+C+D

Permitted

pipe

length

-50 m

-50 m 0.6 kg 1.2 kg — —

-75 m 0.6 kg 1.2 kg 1.8 kg 2.4 kg

Permitted

vertical

difference

-30 m

Additional refrigerant charging amount

31 - 40 m 41 - 50 m 51 - 60 m 61 - 75 m

0.2 kg 0.4 kg — —

Calculate the

amount of additional

refrigerant charge using formula pro

vided next page

4. Installing the refrigerant piping

When length exceeds 70 m

When the total length of the piping exceeds 70 m, calculate the amount of additional charge based on the following requirements. Note: If the calculation produces a negative number (i.e. a “minus” charge), of if calculation results in an amount that is less than the “Additional charage amount for 70 m”, perform the additional charge using the amount shown in “Additional charge amount for 70 m”.

Main piping:

Amount of additional charge

(kg)

Additional charge amount for 70 meters

Max. 1m

Liquid line size ø12.7 overall length ×

0.11 (m) × 0.11 (kg/m)

RP200 3.6 kg RP250 4.8 kg

Fig. 4-9

Maximum pipe length (RP200·RP250)

Liquid

pipe

(mm)

Gas pipe

(mm)

O.D.

Thick-

ness O.D.

Thick-

ness

:19.05

t1.0

:22.2

t1.0

:9.52

t0.8

:25.4

t1.0

Main piping: Liquid line size ø9.52 overall length ×

+++–

0.09 (Gas line: ø25.4) (m) × 0.09 (kg/m)

Indoor unit Outdoor unit Main piping Branch piping Multi distribution

pipe (option)

:28.58

t1.0

:19.05

t1.0

Branch piping: Liquid line size ø9.52 overall length ×

0.06 (Gas line: ø15.88) (m) × 0.06 (kg/m)

Outdoor unit : RP250 A: ø12.7 ... 65 m Indoor unit 1 : RP71 B: ø9.52 ... 5 m Indoor unit 2 : RP71 C: ø9.52 ... 5 m Indoor unit 3 : RP71 D: ø9.52 ... 5 m

Main piping ø12.7 is A = 65 m Branch piping ø9.52 is B + C + D = 15 m Therefore, the amount of additional charge is: 65 × 0.12 + 15 × 0.06 - 3.6 = 5.1(kg) (Fractions are rounded up)

:12.7

t0.8

:22.2

t1.0

:25.4

t1.0

:28.58

t1.0

Branch piping: Liquid line size ø6.35 overall length ×

0.02 (m) × 0.02 (kg/m)

:15.88

t1.0

:22.2

t1.0

:25.4

t1.0

:28.58

t1.0

3.6 (kg)

:31.75

t1.1

Standard size

RP200

20m

[20m]

50m

[30m]

120m [30m]

20m

[20m]

50m

[30m]

Standard size

RP250

20m

[20m]

50m

[30m]

120m [30m]

20m

[20m]

50m

[30m]

Note : Be sure to use hard (tempered) one for pipe over :22.2.

: It can be used. : Cooling capacity is lowered. : Additional refrigerant charge is required when the pipe length exceeds 20m.

120m [30m]

The maximum pipe length Charge-less pipe length

RP200, 250

Additional refrigerant amount when the liquid pipe of the larger diameter is used. 1:1 system

Liquid pipe When the pipe length exceeds 20 m

[15.88

w (g) 0 : Additional charge is not necessary.

Additional refrigerant amount w (g) =180 × Pipe length (m) - 3000

Simultaneous twin/triple/quadruple system

When the pipe length (main piping and branch piping) exceeds 20 m Additional refrigerant amount w (g) =(180 × L1)+(120

L2) +(90

L3)+(30

L4) - 3000 L1 : [15.88 liquid pipe length (m) L2 : [12.7 liquid pipe length (m) L3 : [9.52 liquid pipe length (m) L4 : [6.35 liquid pipe length (m)

w (g) 0 : Additional charge is not necessary.

120m [30m]

50m

[20m]

50m

[20m]

50m

[20m]

50m

[20m]

50m

[20m]

50m

[20m]

50m

[20m]

50m

[20m]

4. Installing the refrigerant piping

4.7. Precautions when reusing existing R22 refrigerant pipes

• Refer to the ﬂ owchart below to determine if the existing pipes can be used and if it is necessary to use a ﬁ lter dryer.

• If the diameter of the existing pipes is different from the speciﬁ ed diameter, refer to technological data materials to conﬁ rm if the pipes can be used.

Measure the existing pipe thickness and check for damage.

The existing pipe thickness meets speciﬁ ca- tions and the pipes are not damaged.

▼

Check if the existing air conditioner can operate.

▼

After operating the cooling system for about 30 minutes, do a pump down work.

▼

Disconnect the existing air conditioner from the pipes.

▼

Attach the new air conditioner

▼

Perform the airtight test, vacuum air purging, additional refrigerant charging (if necessary), and gas leak check.

The existing pipe thickness does not meet speciﬁ cations or the pipes are damaged.

* If the existing air conditioner cannot operate, use a refrigerant recovery device to collect the refrigerant.

* In case existing pipes were used for gas or oil heat pump systems, be sure to clean the pipes for RP100-250 models. Use new pipes for RP35-71 models.

Test run

* Refer to 7.2.

RP71 : A+B+C 50 m RP100-140 : A+B+C(+D) 75 m RP200, 250 : A+B+C(+D)(+E) 120 m

* “D” is for triple“. * “E” is for four (quadruple).

▼ ▼

The existing pipes cannot be reused. Use new pipes.

4.8. For twin/triple/quadruple combination (Fig. 4-10)

• When this unit is used as a FREE COMPO MULTI unit, install the refrigerant piping with the restrictions indicated in the drawing on the left. In addition, if the restrictions are going to be exceeded, or if there are going to be combinations of indoor and outdoor units, refer to installation instructions for the indoor unit for

Indoor unit



Outdoor unit



Multi distribution pipe (option)



Height difference (Indoor unit-



Outdoor unit) Max. 30 m Height difference (Indoor unit-



Indoor unit) Max. 1 m A: Main piping B, C, D, E: Branch piping

details about the installation.

Outdoor unit

RP71

RP100-140

RP200 RP250

Outdoor unit

RP71 - 250

Permissible total

piping length A+B+C+D+E

50 m and less

75 m and less

120 m and less

B-C|or|B-D|or

B-E|or|C-D|or |

C-E|or|D-E

8 m and less

Fig. 4-10

A+B or A+C

A+D or A+E

—

100 m and less

Charge-less piping length A+B+C+D+E

30 m and less

No. of bends

Within 15

5. Drainage piping work

Outdoor unit drainage pipe connection

When drain piping is necessary, use the drain socket or the drain pan (option).

RP35, 50 RP60, 71 RP100-250 Drain socket PAC-SG61DS-E Drain pan PAC-SG63DP-E PAC-SG64DP-E PAC-SH97DP-E

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