Hitachi RAS-070HNBRMQ2 User manual

P02005Q
Original
Instruction
&
Maintenance
Manual
HITACHI AIR
CONDITIONER
OUTDOOR UNIT
Models:
Outdoor Units：
RAS-070HNBRMQ2
RAS-080HNBRMQ2
RAS-090HNBRMQ2
RAS-100HNBRMQ2
RAS-110HNBRMQ2
RAS-120HNBRMQ2
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS HEAT-PUMP
AIR CONDITIONER.
KEEP THIS MANUAL FOR
FUTURE REFERENCE.
Original Instructions

Declaration of Conformity
(Manufacturer’s Declaration)
Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd.
Add.: No. 218, Qianwangang Road, Economic and Technological Development Zone, Qingdao,China
declares under its sole responsibility that the air conditioning models to which this declaration relates:
RAS-070HNBRMQ2 RAS-080HNBRMQ2 RAS-090HNBRMQ2
RAS-100HNBRMQ2 RAS-110HNBRMQ2 RAS-120HNBRMQ2
are in conformity with the following standard(s) or other normative document(s), provided that these
are used in accordance with our instructions:
following the provisions of:
Directives, as amended.
Manufacturing number and manufacturing year: refer to model Nameplate.
Notes:
This declaration becomes invalid, if technical or operational modifications are
introduced without the manufacturer's consent.
Johnson Controls Hitachi Air Conditioning Europe SAS is authorized to compile technical file or
relevant technical documentation.
Address : Rue de Lombardie, Parc Aktiland II – 69800 Saint Priest, France
EN 55014-1
EN 55014-2
EN 61000-3-12
EN IEC 61000-3-11
EN 60335-1
EN 60335-2-40
EN 62233
2006/42/EC
2014/30/EU
2012/19/EU
2011/65/EU
2014/517/EU
1907/2006/EC
Name, Surname :
Position/ Title
Date
: Director
: Aug 15, 2021

I
IMPORTANT NOTICE
◆The Company pursues a policy of continuing improvement in design and performance of products. The right
is therefore reserved to vary any specifications without prior notice.
◆The Company cannot anticipate every possible circumstance that might involve a potential hazard.
◆This heat pump air conditioning is designed for standard air conditioning only. Do not use this heat pump air
conditioning for other purposes such as drying clothes, refrigerating foods or for any other cooling or heating
process.
◆Do not install the unit in the following places. It may cause a fire, deformation, corrosion or failure.
* Places where oil (including machinery oil) splashes.
* Places where a lot of sulfide gas drifts such as in hot spring.
* Places where inflammable gas may generate or flow.
* Places where strong salty wind blows such as coast regions.
* Places with an atmosphere of acidity or alkalinity.
◆Do not install the unit in the place where silicon gas drifts. If the silicon gas attaches to the surface of heat
exchanger, the fin surface repels water. As a result, drain water splashes outside of the drain pan and
splashed water runs inside of electrical box. In the end, water leakage or electrical devices failure may occur.
◆Pay attention to the following points when the unit is installed in a hospital or other facilities where
electromagnetic wave generates from medical equipment.
* Do not install the unit in the place where the electromagnetic wave is directly radiated to the electrical box,
remote control cable or remote control switch.
◆
◆
◆
◆
◆
Temperature DB: Dry Bulb, WB: Wet Bulb
Maximum Minimum
Cooling
Operation
Indoor 23°C WB 15°C WB
Outdoor 48°C DB -5°C DB
Heating
Operation
Indoor 30°C DB 15°C DB
Outdoor 15.5°C WB -23°C WB
* Install the unit at least 3 meters away from electromagnetic wave such as a radio.
Do not install the unit in the place where the breeze directly catches the animals and plants. It could
adversely affect the animals and plants.
The installation should be in accordance with the local laws and regulations. The following standards may be
applicable, if the local regulations are not available. International Organization for Standardization, ISO5149
or European Standard, EN 378 or Japan Standard, KHKS0010.
No part of this manual may be reproduced without written permission.
It is assumed that this heat pump air conditioner will be operated and serviced by English speaking people. If
this is not the case, the distributor should be add safety, caution and operating signs in the native language.
This heat pump air conditioning unit comes with a full complement of the appropriate Safety, Danger, and
Caution, Warnings.
The air conditioning cannot work in the cooling and heating operation meanwhile. Otherwise, the indoor unit
which its operation is conflicted with the operation of the outdoor unit would not work.
If you have any questions, please contact your distributor or dealer.
This manual provides common descriptions, basic and advanced information to maintain and service this
heat pump air conditioning unit which you operate as well for other models.
This heat pump air conditioning has been designed for the following temperatures range. Operate the heat
pump air conditioning within this range according to the table below.
◆
◆

II
◆
◆
◆
◆
CHECKING PRODUCT RECEIVED
Upon receiving this product, inspect it for any shipping damages in transit. Claims for damage, either
apparent or concealed, should be filed immediately with the shipping company.
Check the model number, electrical characteristics (power supply, voltage and frequency rating) and
accessories to determine if they are in accordance with the purchase order.
The standard utilization of the unit shall be explained in the instructions. Therefore, the utilization of the unit
other than those indicated in the instructions is not recommended.
In case of any problem, please contact the local dealer as any issues involving installation, performance, or
maintenance arise. The company’s liability shall not cover defects arising from the alteration performed by a
customer without the company’s consent in a written form.

III
TABLE OF CONTENTS
1. SAFETY SUMMARY ............................................................................................................................. 1
2. Before Installation .................................................................................................................................. 4
2.1 Necessary Tools and Instrument List for Installation ................................................................... 4
2.2 Structure ...................................................................................................................................... 6
2.3 Refrigerant Cycle Diagram .......................................................................................................... 7
2.4 Combination of Indoor Unit and Outdoor Unit ............................................................................. 8
2.5 Transportation ............................................................................................................................. 9
2.6 Factory-Supplied Accessories ................................................................................................... ..9
3. Outdoor Unit Installation ...................................................................................................................... 10
3.1 Installation Location and Precautions ........................................................................................ 10
3.2 Service Space ........................................................................................................................... 12
3.3 Installation Work ........................................................................................................................ 15
4. Refrigerant Piping Work ...................................................................................................................... 17
4.1 Precaution for Refrigerant Piping .............................................................................................. 17
4.2 Model of Branch Pipe ................................................................................................................ 20
4.3 Refrigerant Piping Size.............................................................................................................. 21
4.4 Refrigerant Piping Work for Outdoor Unit .................................................................................. 23
4.5 Air-Tightness Test ..................................................................................................................... 25
4.6 Vacuuming ................................................................................................................................ 26
4.7 Additional Refrigerant Charge Calculation ................................................................................ 27
4.8 Additional Refrigerant Charge Work.......................................................................................... 28
4.9 Pressure Measurement ............................................................................................................. 28
5. Electrical Wring .................................................................................................................................... 29
5.1 General Check .......................................................................................................................... 30
5.2 Electrical Wiring Connection ..................................................................................................... 30
5.3 Electrical Wiring for Outdoor Unit .............................................................................................. 32
6. DIP Switch Setting of Outdoor Unit ..................................................................................................... 34
7. Test Run .............................................................................................................................................. 36
7.1 Before Test Run ............................................................................................................................ 36
7.2 Test Run by DIP Switch of Outdoor Unit ....................................................................................... 36
7.3 Test Run by Wired Controller ........................................................................................................ 36
8. Safety and Control Device Setting ....................................................................................................... 40

1. SAFETY SUMMARY
<Signal Words>
◆Signal words are used to identify levels of hazard seriousness.
◆Definitions for identifying hazard levels are provided below with their respective signal words.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTE NOTE is useful information for operation and/or maintenance.
NOTICE is used to address practices not related to personal injury.
1

◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring
connection without referring to our installation manual. If the instructions are not followed, it may result in
a water leakage, electric shock or a fire.
Use the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle. Do not
charge material other than R410A into the unit such as hydrocarbon refrigerants (propane or etc.),
oxygen, flammable gases (acetylene or etc.) or poisonous gases when installing, maintaining and moving.
These flammable gases are extremely dangerous and may cause an explosion, a fire and injury.
Do not pour water into the indoor or outdoor unit. These products are equipped with electrical parts. If
poured, it will cause a serious electrical shock.
Do not open the service cover or access panel for the indoor or outdoor units without turning OFF the
main power supply.
Do not touch or adjust safety devices inside the indoor unit or outdoor units. If these devices are touched
or readjusted, it may cause a serious accident.
Refrigerant leakage can cause difficulty with breathing due to insufficient air. Turn OFF the main switch,
extinguish any naked flame and contact your service contractor, if refrigerant leakage occurs.
Make sure that the refrigerant leakage test should be performed. Refrigerant (Fluorocarbon) for this unit is
incombustible, non-toxic and odorless. However if the refrigerant is leaked and is contacted with fire toxic
gas will generate. Also because the fluorocarbon is heavier than air, the floor surface will be filled with it,
which could cause suffocation.
The installer and system specialist shall secure safety against refrigerant leakage according to local
regulations or standards.
Use an ELB (Earth Leakage Breaker). In the event of fault, there is danger of an electric shock or a fire if
it is not used.
Do not install the outdoor unit where there is high level of oil mist, flammable gases, salty air or harmful
gases such as sulfur.
For installation, firmly connect the refrigerant pipe before the compressor starts operating. For
maintenance, relocation and disposal, remove the refrigerant pipe after the compressor stops.
Do not perform a short-circuit of the protection device such as a pressure switch when operating. It may
cause a fire and explosion.
The A-weighted emission sound pressure level do not exceeds 70 dB(A)
◆Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within
approximately one meter from the system.
◆If circuit breaker or fuse is often activated, stop the system and contact your service contractor.
◆Check that the ground wire is securely connected. If the unit is not correctly grounded, it may lead to
electric shock. Do not connect the ground wiring to gas piping, water piping, lightning conductor or
ground wiring for telephone.
◆Connect a fuse of specified capacity.
◆Before performing any brazing work, check to ensure that there is no flammable material around. When
using refrigerant be sure to wear leather gloves to prevent cold injuries.
◆Protect the wires, electrical parts, etc. from rats or other small animals. If not protected, rats may gnaw at
unprotected parts and which may lead to a fire.
◆Fix the cables securely. External forces on the terminals could lead to a fire.
◆Provide a sufficiently strong foundation. If not, the unit may fall down and it may lead to injuries.
◆
2

◆
◆
◆
◆
Do not install the unit in a place where oil, vapor, organic solvent and corrosive gas (ammonia, sulfur
compound and acid) may be present in quantities. It may cause refrigerant leakage due to corrosion,
electrical shock, deteriorated performance and breakage.
Perform electrical work according to Installation Manual and all the relevant regulation and standards. If
the instructions are not followed, an electrical shock and fire may occur due to insufficient capacity and
inadequate performance.
Use specified cables between units and choose the cables correctly. If not, an electrical shock or fire
may occur.
Ensure that the wiring terminals are tightened securely with the specified torques. If not, generating fire
or electrical shock at the terminal connection part may occur.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
This appliance can be used by children aged from 8 years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children
without supervision.
The appliances are not intended to be operated by means of an external timer or separate remote-control
system.
Keep the appliance and its cord out of reach of children less than 8 years.
◆Do not step or put any material on the product.
◆Do not put any foreign material on the unit or inside the unit.
◆Provide a strong and correct foundation so that:
a. The outdoor unit is not on an incline.
b. Abnormal sound does not occur.
c. The outdoor unit will not fall down due to a strong wind or earthquake.
◆
◆
◆
◆
◆
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◆
3

2. Before Installation
2.1 Necessary Tools and Instrument List for Installation
No. Tool No. Tool
1 Handsaw 12 Wrench
2 Phillips Screwdriver, Slotted Screwdriver 13 Scale
3 Vacuum Pump 14 Charging Cylinder
4 Refrigerant Gas Hose 15 Gauge Manifold
5 Megohmmeter 16 Wire Cutters
6 Copper Pipe Bender 17 Gas Leak Detector
7 Manual Water Pump (for Indoor Unit) 18 Leveller
8 Pliers 19 Crimper for Solderless Terminals
9 Pipe Cutter 20 Hoist (for Indoor Unit)
10 Brazing Kit 21 Ammeter
11 Hexagon Wrench 22 Voltage Meter
It is recommended to use specially designated tools for handling R410A refrigerant.
◆
◆
◆
◆
Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters
from strong electromagnetic wave radiators such as medical equipment.
Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long
shutdown.
Make sure that the outdoor unit is not covered with snow or ice, before operation.
In some cases, the packaged air conditioner may not be operated normally under the following cases.
* In case that electrical power for the packaged air conditioner is supplied from the same power
transformer as the device*.
* In case that the power source wires for the device* and the packaged air conditioner are located close to
each other.
Device*: (Ex) Lift, container crane, rectifier for electric railway, inverter power device, arc furnace, electric
furnace, large-sized induction motor and large-sized switch. It consumes a large quantity of electrical
power.
Regarding the cases mentioned above, surge voltage may be inducted into the power supply cables
for the packaged air conditioning due to a rapid change in power consumption of the device and an
activation of a switch.
Check field regulations and standards before performing electrical work in order to protect the power
supply for the new air conditioning unit.
NOTE
◆It is recommended that the room will be ventilated every 3 to 4 hours.
◆The heating capacity of the heat pump unit is decreased according to the outdoor air temperature.
Therefore, it is recommended that auxiliary heating equipment be used in the field when the units is
installed in a low temperature region.
4

■ : Interchangeability is available with current R22 ● : Only for Refrigerant R410A (No Interchangeability with R22)
▼ : Prohibited ★ : Only for Refrigerant R407C (No Interchangeability with R22)
Measuring Instrument and Tool
Interchangeability
with R22 Reason of Non-Interchangeability and Attention
(○: Strictly Required)
Use
R410A R407C
Refrigerant
Pipe
Pipe Cutter,
Chamfering
Reame
r
■ ■
- Cutting Pipe
Removing Burrs
Flaring Tool
■■
* The flaring tools for R407C are applicable to R22.
* If using flaring tube, make dimension of tube
larger for R410A.
* In case of hard temper pipe, flaring is not
available.
Flaring for Tubes
Extrusion
Adjustment Gauge
● -
Dimensional Control
for Extruded Portion of
Tube after Flaring
Pipe Bender
■ ■
* In case of hard temper pipe, bending is not
available.
Use elbow for bend and braze.
Bending
Expanding Tool
■ ■
* In case of hard temper pipe, expanding of tube is
not available. Use socket for connecting tube. Expanding Tubes
Torque Wrench
● ■
* For 12.7mm D., 15.88mm D., wrench size is up
2mm.
Connection of Flare Nut
■ ■
* For 6.35mm D., 9.52mm D., 19.05mm D., wrench
size is the same.
Brazing Tool
■ ■
* Perform correct brazing work. Brazing for Tubes
Nitrogen Gas
■ ■
* Strict control against pollution (Blow nitrogen
during brazing.)
Prevention from Oxidation
during Brazing
Lubrication Oil (for
Flare Surface)
● ★
Use a synthetic oil which is equivalent to the oil
used in the refrigeration cycle.
Synthetic oil absorbs moisture quickly.
Applying Oil to the Flared
Surface
Vacuum
Drying
l
Refrigerant
Charge
Refrigerant
Cylinder
● ★
* Check refrigerant cylinder color.
○Liquid refrigerant charging is required regarding
zeotropic refrigerant.
Refrigerant Charging
Vacuum Pump
■ ■
○It is required to mount a vacuum pump adapter
(check valve) to prevent oil of the vacuum pump
from being pulled when the vacuum pump stops.
Vacuum Pumping
Adapter for
Vacuum Pump
(
Check Valve
)
※ ●★
Manifold Valve
● ★
○Use manifold and charging hoses designed for
each refrigerant as design pressure is different. Do
not share manifold and charging hoses with other
refrigerant type to prevent mixing of different type of
refrigerant oil. (If use, it may cause cycle choking or
compressor failure.)
Standard of Connection Diameter; R410A: UNF1/2,
R407C: UNF7/16.
Vacuum Pumping,
Vacuum Holding,
Refrigerant Charging and
Check of Pressures
Charging Hose
● ★
Charging Cylinder
▼ ▼
* Use the weight scale. -
Weight Scale
■ ■ - Measuring Instrument for
Refrigerant Charging
Refrigerant Gas
Leakage Detector
※● ★
* Use a detector designed for each refrigerant as
detecting method is different. Gas Leakage Check
※: Interchangeability with R407C.
5

21
2.2 Structure
Model: 070~120
Compressor
Heat Exchanger
Propeller Fan
Fan MotorLow Pressure Sensor
High Pressure Switch
High Pressure Sensor
4-Way Valve
Electrical Box
Crankcase Heater
Accumulator
Gas Stop Valve
Liquid Stop Valve
Electronic Expansion Valve
Solenoid Valve
Air Inlet
Air Outlet
Check Valve
Strainer
Receiver
Distributor
No. Part Name No. Part Name
6

2.3 Refrigerant Cycle Diagram
Part name
No.
Compressor
Heat Exchanger
High Pressure Switch
High Pressure Sensor
Accumulator
Oil Separator
Strainer
Strainer
Strainer
Strainer
Distributor
4-Way Valve
Capillary Tube
Electronic Expansion Valve
Check Joint
Solenoid Valve
Solenoid Valve
Check Valve
Gas Stop Valve
Liquid Stop Valve
Receiver
Flare Connection
7
Cooling Operation
Heating Operation
Brazing Connection

2.4 Combination of Indoor Unit and Outdoor Unit
8
The range of the connectable indoor unit capacity ratio is 50%~130%.
Outdoor Unit Type
Rated
Capacity
(kW)
Min. Total Capacity
of the indoor units
can be connected
(kW)
Max. Total Capacity
of the indoor units
can be connected
(kW)
indoo
Numb
r
ers
units
of
can
the
be
connected(Q’ty)
Min. Capacity
at Individual
Operation (kW)
070 20.0 10.0 26.0 1(*1)~13 1.8
080 22.4 11.2 29.1 1(*1)~13 1.8
090 25.0 12.5 32.5 1(*1)~13 1.8
100 28.0 14.0 36.4 1(*1)~16(*2) 1.8
110 31.0 15.5 40.3 1(*1)~19(*2) 1.8
120 33.5 16.8 43.5 1(*1)~19(*2) 1.8
NOTE:
(1) It is suggested that the total capacity of indoor units which are operated simultaneously should not
exceed the capacity of outdoor units under the following conditions. Otherwise, there is a decrease in
operating performance.
When there are some round-way cassette indoor units and high wall indoor units in the system;
When the outdoor air temperature is 43° C or more during the outdoor unit cooling operation;
When the outdoor air temperature is lower than -10°C during the outdoor unit heating operation.
(2) For the same system, if the connectable indoor unit capacity ratio is over than 100%, and which all
the indoor units operate simultaneously, capacity of every indoor unit should be less than its rated
capacity.
Connectable Indoor Unit Capacity Ratio = Total Indoor Unit Capacity / Total Outdoor Unit Capacity.
The number of indoor units that can be connected to an outdoor unit is defined in the following table:
*The connectable indoor unit capacity ratio can be calculated as follows:
* 1 When only one indoor unit is connected, the connectable indoor unit capacity ratio must be 100%.
*2 To ensure the heating performance in winter, the recommended number of the connectable indoor units should
not exceed 13. If it exceeds, please contact your distributor or dealer.

2.5 Transportation
Transport the product as near to the
installation location before unwrapping the package.
Do not put any material or stand on the product.
Apply two lifting wires onto the outdoor unit,
when lifting it by crane.
The Method of Hanging
When hanging the unit, ensure a balance of
the unit, ensure it safety and lift up smoothly.
(a)Do not unwrap the package unless the
hanging work is finished.
(b)The hanging work can be conducted
according to the figure below.
NOTE:
Make sure the unit is in horizontal while lifting.
Do not hook with the plastic bands.
If the unit is lifted after unwrapping the package,
protect the unit with the corner paddings or
cloth.
Do not place or leave any other objects (cables,
tools) inside the outdoor unit or control board and
verify that nothing remains there prior to installation
and test run. Ignoring the instructions can lead to
damage and fire incidents.
2.6 Factory supplied Accessories
The accessories are packed with the outdoor
unit, please check that in the package.
Accessory Quantity
1
1
Installation Manual
NOTE:
If any of these accessories are not packed with
the unit, please contact your distributor.
Accessory Pipe Pouch
9

3. Outdoor Unit Installation
3.1 Installation Location and Precautions
◆When installing the unit into:
A wall: Make sure the wall is strong enough to hold the weight of the unit. It may be necessary to
construct a strong wood or metal frame to provide added support.
A room: Properly insulate any refrigerant tubing run inside a room to prevent “sweating” that can cause
dripping and water damage to wall and floors.
Damp or uneven areas: Use a raised concrete pad or concrete blocks to provide a solid and level
foundation for the unit to prevent water damage and abnormal vibration.
An area with high winds: Securely anchor the outdoor unit down with bolts and a metal frame. Provide
a suitable wall for wind prevention (field-supplied).
A snowy area: Install the outdoor unit on a raised platform that is higher than drifting snow. Provide
snow roof for snow prevention (field-supplied).
◆Do not install the unit in the following places. Otherwise, it can result in an explosion, fire, deformation,
corrosion, or product failure.
Explosive or flammable atmosphere.
Where a fire, oil, steam, or powder can directly enter the unit, such as in close proximity or directly
above a kitchen stove.
Where oil (including machinery oil) may be present.
Where corrosive gases such as chlorine, bromine, or sulphide can accumulate, such as near a hot tub
or hot spring.
Where dense, salt-laden airflow is heavy, such as in coastal regions.
Where the air quality is of high acidity.
Where harmful gases can be generated from decomposition.
◆Do not install the indoor unit where such dripping can cause moisture damage or uneven locations: Use a
raised concrete pad or concrete blocks to provide a solid and level foundation for the unit to prevent water
damage and abnormal vibration. Do not position the drain pipe for the indoor unit near any sanitary
sewers where corrosive gases may be present.
◆Before performing any brazing work, be sure that there are no flammable materials or open flames
nearby.
◆Perform a test run to ensure normal operation. Safety guards, shields, barriers, covers, and protective
devices must be in place while the compressor/unit is operating. During the test run, keep fingers and
clothing away from any moving parts.
◆Clean up the site when finished, remembering to check that no metal scraps or bits of wiring have been
left behind inside the unit being installed.
◆After installation work for the system has been completed, explain the “Safety Precautions”, the proper
use and maintenance of the unit to the customer according to the information in all manuals that came
with the system. All manuals and warranty information must be given to the user or be left near the Indoor
Unit.
◆Select a direction where a strong wind does not blow to the air outlet surface or the air inlet surface.
10

◆If a suitable location cannot be found, the windbreak wall or fence should be installed to prevent a
strong wind from blowing to air inlet or outlet of the outdoor unit. And make sure to provide sufficient
space around the outdoor unit for operation and maintenance.
NOTE:
If strong wind blows direct to the air outlet, the needed airflow volume cannot be maintained and the outdoor
unit may be difficult to operate normally.
If excessively strong wind blows to the air outlet consecutively, it may cause the propeller fan or the fan
motor breakage by high speed rotation or overload.
Air Outlet
Direction of
Strong Wind
11

3.2 Service Space
When the outdoor unit is installed, the allowed service space is as follows:
◆If there is not enough service space for air inlets and outlets, it may result in a performance drop-off and
mechanical issues due to insufficient air intake.
◆Additionally, adequate service space is required for service maintenance access.
(1)Obstacles on the inlet side
(a)There is no obstacle in the upper side. Unit: mm
(b) There are obstacles in the upper side. Unit: mm
12
Min. 100
Single Installation Multiple Installation
NOTE:
Open both right and left sides.
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.
* Around sides
are closed.
* Around sides
are open.
Min. 100
Min. 300
Min. 50
Front
Side
Front Side
Min. 100
Front Side
A
L
H
A
L
Fit positions " " with unit front side.
Min. 360
Min. 360
Min. 200
Front Side
Min. 300
Single Installation Multiple Installation
Min. 1000
Min.
1000
Min.
1000
Min. 1000
Max. 300
Min. 360
H
Min. 100
H
Max. 300
NOTE:
Open both
right and left sides.
Max. 300
H
L
A
Min. 100
H
Max. 300
L
A
Min. 360
Min. 360
Min. 360
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.
˜ No more than 2 units
for multiple installation
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.

(2)Obstacles on the outlet side and no obstacle in the upper side Unit: mm
13
Min. 150
Single Installation Multiple Installation
Front
Side
H
Min. 100
H
L
L
Min. 50Min. 100
Min. 100
Min. 700
Min. 100
NOTE:
Open both
right and left sides.
Min. 350
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.
NOTES:
˜ Install Airflow Guide
(optional)
˜ Open both
right and left sides.
˜ No more than 2 units
for multiple installation
Min. 700
Min. 700
NOTE:
Open eather
right or left side.
(3)Obstacles on the right and left sides of single installation
(a)There is no obstacle in the upper side.
Unit: mm
"#$%&'((
"#$%&'(
)#$*+,&-$./0++0/#1$
2
"
#$%&'((
"#$%&3((
2
)#$*+,&-$./0++0/#1$
"
#$%&'((
"#$%&'(
2
"#$
%
&
3
(
(
(
"
#$%&'((
2
"#$%&3(((
"#$%&3((
(b)There are obstacles in the upper side. Unit: mm
4447494894564788484887449469747

898454749844989484
>4
]
4
4
]4;^25><>447
5:44845841;<=>7734?4@974A8458
;^254]44]45I;>>447
44874788984784898484697474749474849B4849B48478488
4494976478948488488474898484794B4748478C88
NOTE:

