Mitsubishi electric PUHZ-RP100YKA User Manual [ru]

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

INSTALLATION MANUAL	FOR INSTALLER

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

INSTALLATIONSHANDBUCH	FÜR INSTALLATEURE

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

MANUEL D’INSTALLATION	POUR L’INSTALLATEUR

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	VOOR DE INSTALLATEUR

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

MANUAL DE INSTALACIÓN	PARA EL INSTALADOR

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 L’INSTALLATORE

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.

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MANUAL DE INSTALAÇÃO	PARA O INSTALADOR

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	TIL INSTALLATØREN

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

INSTALLATIONSMANUAL	FÖR INSTALLATÖREN

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

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

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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

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

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.

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 connection 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 shortcircuit power Ssc is greater than or equal to Ssc (*1) at the interface point 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 Ssc greater than or equal to Ssc (*1)”

Ssc (*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 afﬁxed 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 ﬁre may result.

•For installation work, follow the instructions in the Installation Manual and use tools and pipe components speciﬁcally made for use with R410A refrigerant. 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 ﬁre 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 ﬂame, poisonous gases will be released.

•All electric work must be performed by a qualiﬁed 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 insufﬁcient capacity or incorrect electrical work may result in electric shock or ﬁre.

•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 speciﬁed cables for wiring. The connections must be made securely without tension on the terminals. If the cables are connected or installed incorrectly, overheating or ﬁre may result.

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

•When installing or moving the air conditioner, use only the speciﬁed refrigerant (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 ﬁre 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 ﬁre may result.

•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 ﬁre 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 ﬂame of a heater or portable cooking range, poisonous gases will be released.

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 signiﬁcantly reduced and the internal parts can be damaged.

•Do not install the unit where combustible gases may leak, be produced, ﬂow, or accumulate. If combustible gas accumulates around the unit, ﬁre or explosion may result.

•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 ﬁns 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.

•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 ﬂare nuts to speciﬁcation using a torque wrench. If tightened too much, the ﬂare nut can break after an extended period and refrigerant can leak out.

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 sufﬁcient capacity. Otherwise, a short circuit, overheating, or ﬁre 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 ﬁre may result.

•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 speciﬁed capacity. If the circuit breaker capacity is larger than the speciﬁed capacity, breakdown or ﬁre 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.

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

•After stopping operation, be sure to wait at least ﬁve minutes before turning 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 speciﬁed thickness. (Refer to 4.1.) Note the following if reusing existing pipes that carried R22 refrigerant.

-Replace the existing ﬂare nuts and ﬂare the ﬂared 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 ﬂared sections. If mineral oil is mixed in the refrigeration oil, oil deterioration may result.

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

	Tools (for R410A)
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 refrigerant lines, refrigeration oil deterioration may result.

•Do not use a charging cylinder. If a charging cylinder is used, the composition of the refrigerant will change and the efﬁciency will be lowered.

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 afﬁxed to the
inside of the service panel.
1	Joint pipe	.........
		×1

Fig. 1-1

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	A Pipe length	B Height	C Number of bends
Models	(one way)	difference	(one way)
	(one way)	difference	(one way)
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

•Height difference limitations are binding regardless of which unit, indoor or outdoor, is positioned higher.

D Indoor unit E Outdoor unit

2. Installation location

■ RP35, 50		■ RP60, 71
300+23	800		330+30
	800		950
600		943
150
500	330	175	600
69		175


			370
■ RP100, 125, 140, 200, 250
	30+25
	3	1050
		1050
	1338

225

600

70 3

Fig. 2-2

Fig. 2-3

Fig. 2-4

Fig. 2-5

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 and indoor unit.

•Avoid locations where combustible gases may leak, be produced, ﬂow, or accumulate.

•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 airﬂow 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 ﬁngers 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)

2Install 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

3Position 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 ﬁgures in parentheses are for RP100-250 models. Refer to the ﬁgures for each case.

1 Obstacles at rear only (Fig. 2-6)

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

3Obstacles at rear and sides only (Fig. 2-8)

*350 for RP35, 50.

4Obstacles at front only (Fig. 2-9)

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

5Obstacles 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.

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

*350 for RP35, 50.

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

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 ﬁgures in parentheses are for RP100-250 models. 1 Obstacles at rear only (Fig. 2-12)

2Obstacles 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 airﬂow.

3Obstacles at front only (Fig. 2-14)

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

4Obstacles 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.

5Single parallel unit arrangement (Fig. 2-16)

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

6Multiple parallel unit arrangement (Fig. 2-17)

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

7Stacked 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.

3. Installing the outdoor unit

Max. 30 for RP60-250

Max. 18 for RP35, 50

■ RP35, 50

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 ﬁrmly 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.

■ RP60, 71

■ RP100-250

■ RP35, 50

500

Min. 650

500

Min. 350 150

800

150

300	330
15

■ RP60, 71

600	Min. 360		600


			330			370

	Min. 10	175		175	25
	Min. 10	175	950	175
			950

Fig. 3-1

■ RP100-250

	600		Min. 460		600

	330	370


25

225		225
Min. 10		1050

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 ﬂared 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.

Warning:

When installing or moving the air conditioner, use only the speciﬁed refrigerant (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)	[6.35	[9.52	[12.7	[15.88	[19.05	[22.2	[25.4	[28.58
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 speciﬁed 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.

Fig. 4-4

4. Installing the refrigerant piping

A	45οπ 2ο		B
	45οπ 2ο
ο π 0.5ο	øA
90		R0
		.
		4~R0
		.
		8
A Flare cutting dimensions
B Flare nut tightening torque
			C
		Fig. 4-1	D
A (Fig. 4-1)
Copper pipe O.D.		Flare dimensions
(mm)		øA dimensions (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.	Flare nut O.D.	Tightening torque
(mm)	(mm)	(N·m)
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

AStop valve BSeal section CLocal piping

DDouble spanner section EJoint pipe

FPipe cover

Fig. 4-3

A Die

B Copper pipe

Fig. 4-2

AFront piping cover

BPiping cover

CStop valve

DService panel

EBend radius : 100mm -150mm

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 (speciﬁc gravity of 0.03, thickness of 9 mm or more).

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

• Use two wrenches to tighten piping connections. B

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

• Apply refrigerating machine oil over the entire ﬂare seat surface. C

• Use the ﬂare nuts for the following pipe size. D

		RP35, 50	RP60, 71	RP100-140	RP200	RP250
Gas side	Pipe size (mm)	[12.7	[15.88	[15.88	[25.4	[25.4
Liquid side	Pipe size (mm)	[6.35	[9.52	[9.52	[9.52	[12.7

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

• 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.

2Flare the liquid pipes and gas pipes and apply a thin layer of refrigeration oil (Applied on site).

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

The size adjustment gauge can be used to conﬁrm A measurements.

Table 1 (Fig. 4-2)

Copper pipe O.D.		A (mm)
Copper pipe O.D.	Flare tool for R410A		Flare tool for R22·R407C
(mm)	Flare tool for R410A		Flare tool for R22·R407C
(mm)	Clutch type
	Clutch type
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)

1Braze the E Joint pipe provided to the outdoor unit using locally procured brazing materials and C Local piping without oxygen.

2Connect the E Joint pipe to the gas-side Stop valve.

Use 2 wrenches to tighten the ﬂare nut.

*If order is reversed, refrigerant leak occurs because of the part damaging by brazinig ﬁre.

•For PEA-RP200, 250, 400, 500GA

The method of pipe connection is brazing connection.

		PEA-200	PEA-250	PEA-400	PEA-500
Gas side	Pipe size (mm)	[25.4	[25.4	[25.4	[25.4
Liquid side	Pipe size (mm)	[9.52	[12.7	[9.52	[12.7

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).

1Perform refrigerant piping connections for the indoor/outdoor unit when the outdoor unit’s stop valve is completely closed.

2 Vacuum-purge air from the indoor unit and the connection piping.

3After connecting the refrigerant pipes, check the connected pipes and the indoor unit for gas leaks. (Refer to 4.4 Refrigerant pipe airtight testing method)

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

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

	A	B
	A
C		H
		H
D
E
F		I
		I
G
	E Local pipe
	F Sealed, same way for gas side
	G Pipe cover

HDo not use a wrench here. Refrigerant leakage may result.

I Use two wrenches here.

(1)







Fig. 4-6
A Valve
B Unit side
C Handle
D Cap
E Local pipe side
F Pipe cover
G Service port
H Wrench hole

Fig. 4-5

(2)

Fig. 4-7

IDouble spanner section

(Do not apply a spanner other than to this section. Doing so would cause coolant leaks.)

JSeal 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 inﬁltrate the heat insulation material.)

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

(1)Connect the testing tools.

•Make sure the stop valves A B are closed and do not open them.

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

(2)Do not add pressure to the speciﬁed pressure all at once; add pressure little by little.

1 Pressurize to 0.5 MPa (5 kgf/cm2G), wait five minutes, and make sure the pressure does not decrease.

2 Pressurize to 1.5 MPa (15 kgf/cm2G), wait ﬁve minutes, and make sure the pressure does not decrease.

3 Pressurize to 4.15 MPa (41.5 kgf/cm2G) and measure the surrounding temperature and refrigerant pressure.

(3)If the speciﬁed 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/cm2G). Make the necessary corrections.

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

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)

1Remove the cap, pull the handle toward you and rotate 1/4 turn in a counterclockwise direction to open.

2Make 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)

2Make 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 remain. (If the gaps are not closed, noise may be emitted or water and dust will enter the unit and breakdown may result.)

	C	* The ﬁgure to the left is an example only.
	C	The stop valve shape, service port position,
		The stop valve shape, service port position,
		etc., may vary according to the model.
		* Turn section A only.

D(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 information.

•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.

	Permitted	Permitted	Additional refrigerant charging amount
Model	pipe	vertical	Additional refrigerant charging amount
Model	pipe	vertical
	length	difference	31 - 40 m	41 - 50 m	51 - 60 m	61 - 75 m
RP35, 50	-50 m		0.2 kg	0.4 kg	—	—
		-30 m
RP60, 71	-50 m	-30 m	0.6 kg	1.2 kg	—	—

RP100-140	-75 m		0.6 kg	1.2 kg	1.8 kg	2.4 kg

				A+B+C+D
Outdoor unit			Amount of additional refrigerant charge (kg)
	30 m and less	31-40 m and less		41-50 m and less	51-60 m and less	61-70 m and less	71-120 m and less
RP200		0.9 kg		1.8 kg	2.7 kg	3.6 kg	Calculate the
RP200	No additional	0.9 kg		1.8 kg	2.7 kg	3.6 kg	amount of additional
							amount of additional
							refrigerant charge
	charge necessary						refrigerant charge
RP250	charge necessary	1.2 kg		2.4 kg	3.6 kg	4.8 kg	using formula pro-
							using formula pro-
							vided next page
							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:

Branch piping:

Amount of additional

Liquid

line size

Liquid line size

Liquid

line size

charge

ø12.7 overall length ×

ø9.52 overall length ×

ø6.35 overall length ×

–

3.6 (kg)

0.11

0.09 (Gas line: ø25.4)

0.06 (Gas line: ø15.88)

0.02

(kg)

(m) × 0.11 (kg/m)

(m) × 0.09 (kg/m)

(m) × 0.06 (kg/m)

(m) × 0.02 (kg/m)

Additional charge amount

RP200

3.6 kg

for 70 meters

RP250

4.8 kg

Max. 1m

Indoor unitOutdoor unitMain pipingBranch piping

Multi distribution pipe (option)

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)

Fig. 4-9

Maximum pipe length (RP200·RP250)

Liquid

O.D.

:9.52

:12.7

:15.88

pipe

Thick-

t0.8

t1.0

(mm)

ness

Gas

O.D.

:19.05

:22.2

:25.4

:28.58

:19.05

:22.2

:25.4

:28.58

:22.2

:25.4

:28.58

:31.75

pipe

Thick-

t1.0

t1.1

(mm)

ness

Standard size

RP200

20m

50m

120m

20m

50m

120m

50m

[20m]

[30m]

[20m]

[30m]

[20m]

Standard size

RP250

20m

50m

120m

20m

50m

120m

50m

[20m]

[30m]

[20m]

[30m]

[20m]

Note : Be sure to use hard (tempered) one for pipe over :22.2. <Marks in the table above>

120m

[30m]

RP200, 250

:It can be used.

:Cooling capacity is lowered.

:Additional refrigerant charge is required when the pipe length exceeds 20m.

The maximum pipe length

Charge-less pipe length

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

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

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.

4. Installing the refrigerant piping

4.7. Precautions when reusing existing R22 refrigerant pipes

•Refer to the ﬂowchart below to determine if the existing pipes can be used and if it is necessary to use a ﬁlter dryer.

•If the diameter of the existing pipes is different from the speciﬁed diameter, refer to technological data materials to conﬁrm if the pipes can be used.

Measure the existing pipe thickness and check for damage.

The existing pipe thickness meets speciﬁcations and the pipes are not damaged.

The existing pipe thickness does not meet speciﬁcations or the pipes are 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.

▼

Test run

* Refer to 7.2.

*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.

▼

The existing pipes cannot be reused.

Use new pipes.

Indoor unitOutdoor unit

Multi distribution pipe (option)Height difference (Indoor unit-

Outdoor unit) Max. 30 m

Height difference (Indoor unitIndoor unit) Max. 1 m

A: Main piping

B, C, D, E: Branch piping

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“.		Fig. 4-10
* “E” is for four (quadruple).

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 details about the installation.

	Permissible total		A+B or A+C	Charge-less
Outdoor unit	piping length		or	piping length
	A+B+C+D+E		A+D or A+E	A+B+C+D+E
RP71	50 m and less		—	30 m and less

RP100-140	75 m and less		—	30 m and less

RP200	120 m and less		100 m and less	30 m and less
RP250	120 m and less		100 m and less	30 m and less
RP250

		\| B-C \| or \| B-D \| or
Outdoor unit		\| B-E \| or \| C-D \| or		No. of bends
		\| C-E \| or \| D-E \|
RP71 - 250		8 m and less		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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