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.
KA
FOR INSTALLER
English
FÜR INSTALLATEURE
Deutsch
POUR L’INSTALLATEUR
Français
VOOR DE INSTALLATEUR
Nederlands
PARA EL INSTALADOR
Español
PER L’INSTALLATORE
Italiano
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.
Emniyetli ve doğru kullanım için, klima cihazını monte etmeden önce bu kılavuzu ve iç ünite montaj kılavuzunu
tamamıyla okuyun.
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.
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-HRP71/100VHA2)
► PUHZ-HRP200YKA
“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
sc (*1)
S
scis greater than or equal to Ssc (*1) at the interface point
sc greater than or
sc (*1)”
ModelSsc (MVA)
PUHZ-HRP200YKA1.35
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.
• 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 relocating, or servicing the air conditioner, use only the
specifi ed 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.
If air is mixed with the refrigerant, then it can be the cause of abnormal
high pressure in the refrigerant line, and may result in an explosion and
other hazards.
The use of any refrigerant other than that specified for the system will
cause mechanical failure or system malfunction or unit breakdown. In the
worst case, this could lead to a serious impediment to securing product
safety.
• 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.
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.
2
• 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. 2 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.
• 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) (HRP200)
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
D
B
Fig. 2-1
A
E
C
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
HRP71, 100, 125Max. 75 mMax. 30 mMax. 15
HRP200Max. 80 mMax. 30 mMax. 15
• Height difference limitations are binding regardless of which unit, indoor or out-
door, is positioned higher.
D Indoor unit
E Outdoor unit
A Pipe length
(one way)
B Height
difference
C
Number of bends
(one way)
3
2. Installation location
■
HRP71,100,125
■
HRP200
175
225
1350
330+25
1338
330+30
600
600
Fig. 2-2
950
1050
370
370
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, 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.
Refer to the fi gures for each case.
1
Obstacles at rear only (Fig. 2-6)
2
Obstacles at rear and above only (Fig. 2-7)
3
Obstacles at rear and sides only (Fig. 2-8)
4
Obstacles at front only (Fig. 2-9)
* When using the optional air outlet guides, the clearance is 500 mm or more.
5
Obstacles at front and rear only (Fig. 2-10)
* When using the optional air outlet guides, the clearance is 500 mm or more.
6
A
Obstacles at rear, sides, and above only (Fig. 2-11)
• Do not install the optional air outlet guides for upward airfl ow.
Fig. 2-3
Fig. 2-4
2.4.3. When installing multiple outdoor units (Refer to the last page)
Leave 10 mm space or more between the units.
1
Obstacles at rear only (Fig. 2-12)
2
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.
3
Obstacles at front only (Fig. 2-14)
* When using the optional air outlet guides, the clearance is 1000 mm or more.
4
Obstacles at front and rear only (Fig. 2-15)
* When using the optional air outlet guides, the clearance is 1000 mm or more.
5
Single parallel unit arrangement (Fig. 2-16)
* When using the optional air outlet guides installed for upward airfl ow, the clearance is
1000 mm or more.
6
Multiple parallel unit arrangement (Fig. 2-17)
* When using the optional air outlet guides installed for upward airfl ow, the clearance is
1500 mm or more.
7
Stacked unit arrangement (Fig. 2-18)
• The units can be stacked up to 2 units high.
• No more than 2 stacked units must be installed side by side. In addition, leave space as
shown.
B
Fig. 2-5
4
3. Installing the outdoor unit
Max. 30
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 operation. (Fig. 3-1)
<Foundation specifi cations>
Foundation boltM10 (3/8")
Thickness of concrete120 mm
Length of bolt70 mm
Weight-bearing capacity320 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.
• 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.
■
HRP71, 100, 125
■
HRP71, 100, 125
600600Min. 360
330
370
Min. 10
175175
950
25
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.
■
HRP200
■
HRP200
600600
Min. 460
33025
370
225225
1050Min. 10
Warning:
When installing or relocating, or servicing the air conditioner, use only the
specifi ed 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.
If air is mixed with the refrigerant, then it can be the cause of abnormal high
pressure in the refrigerant line, and may result in an explosion and other hazards.
The use of any refrigerant other than that specifi ed for the system will cause
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
Pipe size (mm)
Thickness (mm)0.80.80.81.01.01.01.01.0
• Do not use pipes thinner than those specifi ed above.
• Use 1/2 H or H pipes if the diameter is 19.05 mm or larger.
• 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).
• Be sure to separate thermal insulation for gas and liquid refrigerant pipes.
• 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 2 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 sidePipe size (mm)[15.88[25.4
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.
Use the following procedure for connecting the gas-side piping. (Fig.4-3) (HRP200)
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
Remove the service panel D (3 screws) and the front piping cover A (2 screws)
and rear piping cover B (2 screws: HRP71-125) (4 screws: HRP200).
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 de-
gree 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 refriger-
•
ant 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.
6
4. Installing the refrigerant piping
A
B
D
C
A Stop valve <Liquid side>
B Stop valve <Gas side>
C Service port
D Open/Close section
Fig. 4-5
(1)(2)
Fig. 4-6Fig. 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.)
A
C
D
E
F
G
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 2 wrenches here.
• 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
sure 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 1 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.
AB
2
G), wait 5 minutes, and make sure the pres-
2
G), wait 5 minutes, and make sure the
2
G) and measure the surrounding tem-
2
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 (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 completely, push in the handle and rotate
the cap back to its original position.
(2)
Liquid side (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
• 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
• 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.)
B
C
* The fi gure to the left is an example only.
The stop valve shape, service port position,
A
etc., may vary according to the model.
* Turn section A only.
(Do not further tighten sections A and B
together.)
D
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 30 m, 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.
Model
HRP71,100,125-75 m-30 m0.6 kg1.2 kg1.8 kg2.4 kg
Permitted pipe
length
Model
Permitted vertical
difference
30 m and less31-40 m41-50 m51-60 m61-70 m71-80 m
31 - 40 m41 - 50 m51 - 60 m61 - 75 m
* 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.
• 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.
Additional refrigerant charging amount
A+B+C+D
Amount of additional refrigerant charge (kg)
HRP200
For single combination
(1 indoor unit)
For twin / triple /
quadruple combination
(2-4 indoor units)
No additional
charge necessary
1.4 kg2.8 kg
0.9 kg1.8 kg
4.2 kg5.6 kg7.0 kg
Calculate the amount of additional refrigerant
charge using formula provided next page
7
4. Installing the refrigerant piping
When length exceeds 50 m for twin / triple / quadruple combination (Only HRP200)
When the total length of the piping exceeds 50 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 50 m”,
perform the additional charge using the amount shown in “Additional charge amount for 50 m”.
Amount of additional
charge
(kg)
Additional charge amount
for 50 meters
Max. 1m
Main piping:
Liquid line size
ø12.7 overall length ×
=
0.17
(m) × 0.17 (kg/m)
1.8 kg
Main piping:
Liquid line size
ø9.52 overall length ×
+++–
0.14 (Gas line: ø25.4)
(m) × 0.14 (kg/m)
Indoor unit
Outdoor unit
Main piping
Branch piping
Multi distribution
pipe (option)
Branch piping:
Liquid line size
ø9.52 overall length ×
0.05 (Gas line: ø15.88)
(m) × 0.05 (kg/m)
Outdoor unit : HRP200 A: ø9.52 ... 65 m
Indoor unit 1 : RP60 B: ø9.52 ... 5 m
Indoor unit 2 : RP60 C: ø9.52 ... 5 m
Indoor unit 3 : RP60 D: ø9.52 ... 5 m
Main piping ø9.52 is A = 65 m
Branch piping ø9.52 is B + C + D = 15 m
Therefore, the amount of additional charge is: 65 × 0.14 + 15 × 0.05 - 4.3 = 5.6 (kg)
(Fractions are rounded up)
Branch piping:
Liquid line size
ø6.35 overall length ×
0.02
(m) × 0.02 (kg/m)
Fig. 4-9
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.
4.3 (kg)
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.
Measure the existing pipe thickness and
check for damage.
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.
▼▼
Test run
* Refer to 7.2.
The existing pipes cannot be reused.
Use new pipes.
8
4. Installing the refrigerant piping
<Limits of refrigerant piping installation>
HRP71, 100, 125 : A+B+C≤75 m
HRP200 : A+B+C(+D)(+E) ≤ 80 m
* “D” is for triple“.
* “E” is for four (quadruple).
5. Drainage piping work
Fig. 4-10
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
Max. 20m
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.
Outdoor unit
HRP71, 100, 125
HRP200
Outdoor unit
HRP71 - 200
Permissible total
piping length
A+B+C+D+E
75 m and less
80 m and less
|
B-C|or|B-D|or
|
B-E|or|C-D|or
|
C-E|or|D-E
8 m and less
A+B or A+C
or
A+D or A+E
—
70 m and less
|
Charge-less
piping length
A+B+C+D+E
30 m and less
30 m and less
No. of bends
Within 15
Outdoor unit drainage pipe connection
When drain piping is necessary, use the drain socket or the drain pan (option).
1 Remove the service panel.
2 Wire the cables referring to the Fig. 6-1 and the Fig. 6-2.
L
N
D
For Heater
E
B
S3
S2S1LN
E
D
For PowerFor Power
* With Heater
model only
S1
S2
S3
A
A Indoor unit
B Outdoor unit
C
For HeaterFor HeaterFor Heater
C Remote controller
D Main switch (Breaker)
E Earth
DDDD
Fig. 6-2
HRP71, 100V
HRP100-200Y
L1 L2 L3 N
LN
S1 S2 S3
S1 S2 S3
AAAB
E
C
EE
E
Fig. 6-1
Note: Only for Air to water application
When multiple indoor units (Hydro boxes) are connected to the outdoor
unit, wire the PCB of either one of the indoor unit and the outdoor unit
(S1,S2,S3).
It is impossible to connect the PCBs of multiple indoor units to the outdoor
unit.
F Terminal block
G Indoor/Outdoor connection terminal block (S1, S2, S3)
H Service panel
I Clamp
* Clamp the cables so that they do not contact the center of the service panel or the gas valve.
Note :
If the protective sheet for the electrical box is removed during servicing, be sure to
reinstall it.
Caution:
Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
9
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