Daikin REYQ96TTJU, REYQ168TTJU, REYQ120TTJU, REYQ144TTJU, REYQ192TTJU Installation Manual
...
INSTALLATION MANUAL
System Air Conditioner
MODEL
REYQ72TTJU
REYQ96TTJU
REYQ120TTJU
REYQ144TTJU
REYQ168TTJU
REYQ192TTJU
REYQ216TTJU
REYQ240TTJU
REYQ264TTJU
REYQ288TTJU
REYQ312TTJU
REYQ336TTJU
REYQ360TTJU
REYQ384TTJU
REYQ408TTJU
REYQ432TTJU
REYQ456TTJU
REYQ72TYDN
REYQ96TYDN
REYQ120TYDN
REYQ144TYDN
REYQ168TYDN
REYQ192TYDN
REYQ216TYDN
REYQ240TYDN
REYQ264TYDN
REYQ288TYDN
REYQ312TYDN
REYQ336TYDN
REYQ360TYDN
REYQ384TYDN
REYQ408TYDN
REYQ432TYDN
REYQ456TYDN
English
Français
Español
3P362438-3H
Safety considerations
Read these Safety considerations for Installation carefully before installing an air conditioner or heat pump. After completing the installation, make sure that the unit operates properly
during the startup operation.
Instruct the customer on how to operate and maintain the
unit.
Inform customers that they should store this Installation
Manual with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this
product.
Improper installation can result in water or refrigerant leak-
age, electrical shock, re, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER ........ Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING ....... Indicates a potentially hazardous
situation which, if not avoided,
could result in death or serious
injury.
CAUTION ........ Indicates a potentially hazardous
situation which, if not avoided,
may result in minor or moderate
injury. It may also be used to alert
against unsafe practices.
NOTE ........... Indicates situations that may result
in equipment or property-damage
accidents only.
INFORMATION ... This symbol identies useful tips
or additional information.
DANGER
• Refrigerant gas is heavier than air and replaces oxygen. A
massive leak will result in oxygen depletion, especially in
basements, and an asphyxiation hazard will result in seri-
ous injury or death.
• Do not ground units to water pipes, gas pipes, telephone
wires, or lightning rods as incomplete grounding will result
a severe shock hazard resulting in severe injury or death.
Additionally, grounding to gas pipes will result a gas leak
and potential explosion resulting in severe injury or death.
• If refrigerant gas leaks during installation, ventilate the
area immediately. Refrigerant gas will result in producing
toxic gas if it comes into contact with re. Exposure to this
gas will result in severe injury or death.
• After completing the installation work, check that the refrigerant gas does not leak throughout the system.
• Do not install unit in an area where ammable materials
are present due to risk of explosions that will result in seri-
ous injury or death.
• Safely dispose all packing and transportation materials
in accordance with federal/state/local laws or ordinances.
Packing materials such as nails and other metal or wood
parts, including plastic packing materials used for transportation will result in injuries or death by suffocation.
WARNING
• Only qualied personnel must carry out the installation
work. Installation must be done in accordance with this
installation manual. Improper installation could result in
water leakage, electric shock, or re.
• When installing the unit in a small room, take measures to
keep the refrigerant concentration from exceeding allowable safety limits. Excessive refrigerant leaks, in the event
of an accident in a closed ambient space, could result in
oxygen deciency.
• Use only specied accessories and parts for installation
work. Failure to use specied parts could result in water
leakage, electric shocks, re, or the unit falling.
• Install the air conditioner or heat pump on a foundation
strong enough that it can withstand the weight of the unit.
A foundation of insufcient strength could result in the unit
falling and causing injuries.
• Take into account strong winds, typhoons, or earthquakes
when installing. Improper installation could result in the
unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried
out by qualied personnel according to local, state and
national regulations. An insufcient power supply capacity
or improper electrical construction could result in electric
shocks or re.
• Make sure that all wiring is secured, that specied wires
are used, and that no external forces act on the terminal
connections or wires. Improper connections or installation
could result in re.
• When wiring, position the wires so that the control box
cover can be securely fastened. Improper positioning of
the control box cover could result in electric shocks, re, or
the terminals overheating.
• Before touching electrical parts, turn off the unit.
• This equipment can be installed with a Ground-Fault Cir-
cuit Interrupter (GFCI). Although this is a recognized measure for additional protection, with the grounding system in
North America, a dedicated GFCI is not necessary.
• Securely fasten the unit terminal cover (panel). If the
terminal cover/panel is not installed properly, dust or
water may enter the outdoor unit and could result in re or
electric shock.
• When installing or relocating the system, keep the refriger-
ant circuit free from substances other than the specied
refrigerant (R410A) such as air. Any presence of air or other foreign substance in the refrigerant circuit could result
in abnormal pressure rise or rupture, resulting in injury.
• Do not change the setting of the protection devices. If the
pressure switch, thermal switch, or other protection device
is shorted and operated forcibly, or parts other than those
specied by Daikin are used, re or explosion could result.
3P362438-3H Englishi
CAUTION
• Do not touch the switch with wet ngers. Touching a switch
with wet ngers may result in electric shock.
• Do not allow children to play on or around the unit or it
may result in injury.
• The heat exchanger ns are sharp enough to cut, and
may result in injury if improperly used. To avoid injury wear
glove or cover the ns when working around them.
• Do not touch the refrigerant pipes during and immediately
after operation as the refrigerant pipes may be hot or
cold, depending on the condition of the refrigerant owing through the refrigerant piping, compressor, and other
refrigerant cycle parts. It may result in your hands getting burns or frostbite if you touch the refrigerant pipes.
To avoid injury, give the pipes time to return to normal
temperature or, if you must touch them, be sure to wear
proper gloves.
• Install drain piping to proper drainage. Improper drain piping may result in water leakage and property damage.
• Insulate piping to prevent condensation.
• Be careful when transporting the product.
• Do not turn off the power immediately after stopping
operation. Always wait for at least 5 minutes before turning
off the power. Otherwise, water leakage may result.
• Do not use a charging cylinder. Using a charging cylinder
may cause the refrigerant to deteriorate.
• Refrigerant R410A in the system must be kept clean, dry,
and tight.
(a) Clean and Dry - Foreign materials (including mineral
oils such as SUNISO oil or moisture) should be prevented from getting into the system.
(b) Tight - R410A does not contain any chlorine, does
not destroy the ozone layer, and does not reduce the
earth’s protection again harmful ultraviolet radiation.
R410A can contribute to the greenhouse effect if it is
released. Therefore take proper measures to check
for the tightness of the refrigerant piping installation.
Read the chapter Refrigerant Piping and follow the
procedures.
• Since R410A is a blend, the required additional refrigerant must be charged in its liquid state. If the refrigerant is
charged in a state of gas, its composition can change and
the system will not work properly.
• The indoor unit is for R410A. See the catalog for indoor
models that can be connected. Normal operation is not
possible when connected to other units.
• Remote controller (wireless kit) transmitting distance can
be shorter than expected in rooms with electronic uores-
cent lamps (inverter or rapid start types). Install the indoor
unit far away from uorescent lamps as much as possible.
• Indoor units are for indoor installation only. Outdoor units
can be installed either outdoors or indoors. This unit is for
indoor use.
• Do not install the air conditioner or heat pump in the following locations:
(a) Where a mineral oil mist or oil spray or vapor is pro-
duced, for example, in a kitchen.
Plastic parts may deteriorate and fall off and thus may
result in water leakage.
(b) Where corrosive gas, such as sulfurous acid gas, is
produced.
Corroding copper pipes or soldered parts may result
in refrigerant leakage.
(c) Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of
the control system and cause the unit to malfunction.
(d) Where ammable gas may leak, where there is car-
bon ber, or ignitable dust suspension in the air, or
where volatile ammables such as thinner or gasoline
are handled. Operating the unit in such conditions
may result in a re.
• Take adequate measures to prevent the outdoor unit from
being used as a shelter by small animals. Small animals
making contact with electrical parts may result in malfunc-
tions, smoke, or re. Instruct the customer to keep the
area around the unit clean.
NOTE
• Install the power supply and transmission wires for the in-
door and outdoor units at least 3.5ft.(1m) away from tele-
visions or radios to prevent image interference or noise.
Depending on the radio waves, a distance of 3.5ft.(1m)
may not be sufcient to eliminate the noise.
• Dismantling the unit, treatment of the refrigerant, oil and
additional parts must be done in accordance with the
relevant local, state, and national regulations.
• Do not use the following tools that are used with conventional refrigerants: gauge manifold, charge hose, gas
leak detector, reverse ow check valve, refrigerant charge
base, vacuum gauge, or refrigerant recovery equipment.
• If the conventional refrigerant and refrigerator oil are
mixed in R410A, the refrigerant result in deterioration.
• This air conditioner or heat pump is an appliance that
should not be accessible to the general public.
• As design pressure is 478 psi (3.3 MPa), the wall thick-
ness of eld-installed pipes should be selected in accor-
dance with the relevant local, state, and national regulations.
Codes and Regulations
This product is designed and manufactured to comply with
national codes. Installation in accordance with such codes
and/or prevailing local codes/regulations is the responsibility
of the installer. The manufacturer assumes no responsibility
for equipment installed in violation of any codes or regulations. Rated performance is achieved after 72 hours of operation.
3P362438-3H English ii
REYQ72TTJU
REYQ96TTJU
REYQ120TTJU
REYQ144TTJU
REYQ168TTJU
REYQ192TTJU
REYQ216TTJU
REYQ240TTJU
REYQ264TTJU
REYQ288TTJU
REYQ312TTJU
REYQ336TTJU
REYQ360TTJU
REYQ384TTJU
REYQ408TTJU
REYQ432TTJU
REYQ456TTJU
REYQ72TYDN
REYQ96TYDN
REYQ120TYDN
REYQ144TYDN
REYQ168TYDN
REYQ192TYDN
REYQ216TYDN
REYQ240TYDN
REYQ264TYDN
REYQ288TYDN
REYQ312TYDN
REYQ336TYDN
REYQ360TYDN
REYQ384TYDN
REYQ408TYDN
REYQ432TYDN
REYQ456TYDN
CONTENTS
VRVIV System air conditioner
Installation Manual
Safety considerations .....................................i
Codes and Regulations .................................. ii
1. Introduction ...........................................2
1.1. General information ................................. 2
1.2. Combination and options ........................ 2
1.3. Indoor capacity range .............................. 3
1.4. Scope of the manual ............................... 3
2. Accessories ...........................................3
2.1. Accessories supplied with this unit .......... 3
3. Overview of unit ....................................3
3.1. Opening the unit ...................................... 3
3.2. Technical and Electrical specications .... 4
3.3. Main components .................................... 4
4. Selecting an installation location ........4
4.1. General precautions on installation ......... 4
4.2. Weather related precautions ................... 4
4.3. Selecting a location in cold climates ....... 5
5. Dimensions and service space ............ 5
5.1. Dimensions of outdoor unit ..................... 5
5.2. Service space.......................................... 6
6. Inspecting, handling and unpacking
the unit ...................................................7
6.1. Inspection ................................................ 7
6.2. Handling .................................................. 7
6.3. Unpacking ............................................... 7
6.4. Installing the unit ..................................... 7
6.5. Method for removing shipping plate ........ 8
7. Refrigerant pipe size and allowable pipe
length .............................................................9
7.1. General information ................................. 9
7.2. Selection of piping material ..................... 9
7.3. Selection of piping size ........................... 9
7.4. Selection of refrigerant branch kits ........ 10
7.5. System piping (length) limitations ......... 11
8. Precautions on refrigerant piping ......14
8.1. Caution for brazing ................................ 14
8.2. Connecting the refrigerant piping .......... 14
8.3. Guidelines for handling stop valve......... 17
9. Field wiring ..........................................18
9.1. Power circuit, safety device and cable
requirements ......................................... 19
9.2. Wiring connection example for whole
system ................................................... 19
9.3. Leading wire procedure ......................... 19
9.4. Transmission wiring connection
procedure .............................................. 20
9.5. Power wiring connection procedure ...... 21
9.6. Procedure for Wiring Inside Units .......... 22
10. Air tight test and vacuum drying .......22
11. Pipe insulation ..................................... 23
12. Checking of device and installation
conditions ............................................24
13. Makingeldsettings ........................... 24
13.1. Accessing the push buttons on the
printed circuit board ............................... 24
13.2. Operating the push buttons and DIP
switches on the printed circuit board ..... 24
13.3. Connecting the PC congurator to the
outdoor unit ........................................... 26
14. Charging refrigerant ............................26
14.1. Precautions ........................................... 26
14.2. Calculating the additional refrigerant
charge ................................................... 26
14.3. Method for adding refrigerant ................ 28
15. Start-upandconguration .................32
15.1. Checks before initial start up ................. 32
15.2. Monitoring function and eld settings .... 33
15.3. Energy saving and optimum operation ... 36
15.4. Test operation ........................................ 39
15.5. Malfunction code list .............................. 40
16. Operation of the unit ........................... 44
17. Maintenance and service .................... 44
17.1. Maintenance introduction ...................... 44
17.2. Service precautions............................... 44
17.3. Service mode operation ........................ 44
18. Caution for refrigerant leaks ..............44
18.1. Introduction ...........................................44
19. Disposal requirements ........................45
The original instructions are written in English. All other
languages are translations of the original instructions.
1 3P362438-3H English
1. Introduction
1.1. General information
This installation manual concerns the VRV IV, full inverter driven, heat
pump system.
1
2
1 VRV IV Heat Recovery outdoor unit
2 Refrigerant piping
3 BS unit
4 VRV indoor unit
5 Cool/Heat selector (single BS unit only)
6 User interface (dedicated depending on indoor unit type)
7 User interface (wireless, dedicated depending on indoor unit
type)
INFORMATION
Not all combinations of indoor units are allowed. For guidance, see
1.2. Combination and options on page2.
1.2. Combination and options
The VRV IV heat recovery system can be combined with several types
of indoor units and is intended for R410A use only.
For an overview which units are available you can consult the product
catalogue for VRV IV.
NOTE
To be sure your system setup (outdoor unit + BS unit(s) + indoor
unit(s)) will work, you have to consult the latest technical engineering
data for VRV IV heat recovery.
An overview is given indicating the allowed combinations of indoor
units and outdoor units. Not all combinations are allowed. They are
subject to rules (combination between outdoor-indoor, single outdoor
unit use, multiple outdoor unit use, combinations between indoor
units, etc.) mentioned in the technical engineering data.
1.2.1. Indoor unit combinations
In general VRV indoor units can be connected to a VRV IV heat recovery system.
1.2.2. Outdoor unit combinations
Standard combinations for VRV IV heat recovery system are as
indicated in tables below and right, where REYQ192-456 consists of
several REYQ72-168 modules as indicated.
REYQ72TTJU/TYDN 1
REYQ96TTJU/TYDN 1
REYQ120TTJU/TYDN 1
REYQ144TTJU/TYDN 1
3
5
4
6
7
72 96 120 144 168
3
4
5
6
72 96 120 144 168
REYQ168TTJU/TYDN 1
REYQ192TTJU/TYDN 1 1
REYQ216TTJU/TYDN 1 1
REYQ240TTJU/TYDN 1 1
REYQ264TTJU/TYDN 1 1
REYQ288TTJU/TYDN 2
REYQ312TTJU/TYDN 1 1
REYQ336TTJU/TYDN 2
REYQ360TTJU/TYDN 3
REYQ384TTJU/TYDN 1 1 1
REYQ408TTJU/TYDN 1 1 1
REYQ432TTJU/TYDN 3
REYQ456TTJU/TYDN 2 1
To install the outdoor unit, the following optional parts are also required.
1 Refrigerant branching kit.
Description
REFNET header
REFNET joint
For the selection of the optimal branching kit, please refer to
7.4. Selection of refrigerant branch kits on page10.
2 Outdoor unit multi connection piping kit.
Number of outdoor units connected
2 3
BHFP26P100U BHFP26P151U
3 In order to control the cooling or heating operation from a central
location, the following option can be connected:
- Cool/Heat selector: KRC19-26A
- With optional xing box for the switch: KJB111A
- Centralized control devices (e.g., intelligent Touch Manager)
4 To instruct specic operation with an external input coming from a
central control the external control adaptor (DTA104A61/62) can
be used. Instructions (group or individual) can be instructed for low
noise operation and power consumption limitation operation.
5 For VRV IV heat recovery system it is also possible to make several
commissioning eld settings through a personal computer interface. For this option EKPCCAB* is required which is a dedicated
cable to communicate with the outdoor unit. The software for the
user interface program can be obtained from your local Daikin
sales ofce.
for 3 piping for 2 piping
KHRP25M33H9 KHRP26M22H9
KHRP25M72H9 KHRP26M33H9
KHRP25M73HU9 KHRP26M72H9
KHRP25A22T9 KHRP26A22T9
KHRP25A33T9 KHRP26A33T9
KHRP25M72TU9 KHRP26M72TU9
KHRP25M73TU9 –
Model name
INFORMATION
Refer to the technical engineering data for the latest option names.
23P362438-3H English
1.3. Indoor capacity range
Total capacity of indoor units needs to be within the specied range.
<Outdoor unit> <Total capacity index of indoor unit>
REYQ72TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 36-93
REYQ96TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 48-124
REYQ120TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 60-156
REYQ144TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 72-187
REYQ168TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 84-218
REYQ192TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 96-249
REYQ216TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 108-280
REYQ240TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 120-312
REYQ264TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 132-343
REYQ288TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 144-374
REYQ312TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 156-405
REYQ336TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 168-436
REYQ360TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 180-468
REYQ384TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 192-499
REYQ408TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 204-530
REYQ432TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 216-561
REYQ456TTJU/TYDN . . . . . . . . . . . . . . . . . . . . . 228-592
NOTE
Higher capacity than the above table can be selected, this may affect
heating and cooling capacity. For additional information see technical
engineering data.
1.4. Scope of the manual
This manual describes the procedures for handling, installing and
connecting the VRV IV heat recovery outdoor units. This manual has
been prepared to ensure adequate maintenance of the unit, and it will
provide help in case problems occur.
INFORMATION
The installation of the indoor unit(s) is described in the indoor unit
installation manual provided with the indoor units.
Name Clamp (1) Clamp (2) Clamp (3) Vinyl tube Manuals, etc.
Quantity 7 pcs. 1 pc. 1 pc. 5 pcs. 1 pc. each
• Operation Manual
• Installation Manual
Shape
(Small)
Name
Quantity 1 pc. 1 pc. 1 pc. 1 pc.
Shape
Name
Quantity 1 pc. 1 pc. 2 pcs.
Shape
Liquid side
accessory
High and low gas
side accessory
pipe (1)
pipe (1)
96-168T72T
(Large)
Liquid side
accessory
pipe (2)
168T72-144T 72,120T 144,168T96T 72T
High and low gas
side accessory
pipe (2)
72,96T 120-168T
• REQUEST FOR THE
Gas side
accessory
pipe (1)
L type
accessory joint
INDICATION label
(Installation records)
Gas side
accessory
pipe (2)
96,144,168T
120T
3. Overview of unit
3.1. Opening the unit
To gain access to the unit, front panels need to be opened as follows:
REYQ72TTJU/TYDN REYQ96-168TTJU/TYDN
2. Accessories
2.1. Accessories supplied with this unit
Conrm the following accessories are included. The storage location
of the accessories is shown in the gure below.
Accessories assy (piping)
Accessories assy (operation
and installation manual)
NOTE
Do not throw away any of the accessories until installation is complete.
They are needed for installation work.
14x14x
Once the front panel open, the electrical component box can be accessed by removing the control box cover as follows.
REYQ72TTJU/TYDN REYQ96-168TTJU/TYDN
6x
2x
For service purposes, the push buttons on the main printed circuit
board need to be accessed. To access these push buttons, the control
box cover does not need to be opened. See 13. Making eld settings
on page24.
DANGER: ELECTRICAL SHOCK
See Safety considerations on pagei.
DANGER: DO NOT TOUCH PIPING AND INTERNAL PARTS
See Safety considerations on pagei.
3 3P362438-3H English
3.2. TechnicalandElectricalspecications
Refer to the Engineering Data Book for the complete list of specications.
It is therefore recommended to install the equipment and electric wires
keeping proper distances away from stereo equipment, personal
computers, etc
3.3. Main components
For main components and function of the main components, refer to
the Engineering Data Book.
4. Selecting an installation location
WARNING
Be sure to provide for adequate measures in order to prevent that the
unit is used as a shelter by small animals.
Small animals making contact with electrical parts can cause malfunc-
tions, smoke or re. Please instruct the customer to keep the area
around the unit clean and clear.
In a domestic environment this product may cause radio interference
in which case the user may be required to take adequate measures.
CAUTION
Appliance not accessible to the general public, install it in a secured
area, protected from easy access.
This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment.
4.1. General precautions on installation
Select an installation site that meets the following requirements:
• The foundation must be strong enough to support the weight of the
unit.
• Installation location is at to prevent vibrations and noise generation
and to have sufcient stability.
• The space around the unit is adequate for maintenance and servic-
ing (refer to 5.2. Service space on page6).
• The space around the unit allows for sufcient air circulation.
• There is no danger of re due to leakage of inammable gas.
• The equipment is not intended for use in a potentially explosive
atmosphere.
• Select the location of the unit in such a way that the sound generated by the unit does not disturb anyone, and the location is selected
according the applicable legislation.
• All piping lengths and distances have been taken into consideration
(refer to 7.5. System piping (length) limitations on page11).
• Take care that in the event of a water leak, water cannot cause any
damage to the installation space and surroundings.
• When installing the unit in a small room, take measures in order to
keep the refrigerant concentration from exceeding allowable safety
limits in the event of a refrigerant leak, refer to 18. Caution for refrig-
erant leaks on page44.
CAUTION
Excessive refrigerant concentrations in a closed room can lead to
oxygen deciency.
NOTE
The equipment described in this manual may cause electronic noise
generated from radio-frequency energy. The equipment complies
to specications that are designed to provide reasonable protection
against such interference. However, there is no guarantee that interference will not occur in a particular installation.
1
2
2
A
B
5
1 Indoor unit
2 Branch switch, overcurrent breaker
3 Remote controller
4 Cool/Heat selector
5 Personal computer or radio
A
≥ 60 in. (1500 mm)
B
≥ 40 in. (1000 mm)
An inverter air conditioner may cause electronic noise generated from
AM broadcasting. Examine where to install the main air conditioner
and electric wires, keeping proper distances away from stereo equipment, personal computers, etc.
Particularly for locations with weak reception, ensure there is a distance of at least 10 ft. (3 m) for indoor remote controllers, place power
wiring and transmission wiring in conduits, and ground the conduits.
• The refrigerant R410A itself is nontoxic, non-ammable and is safe.
If the refrigerant should leak however, its concentration may exceed
the allowable limit depending on room size. Due to this, it could be
necessary to take measures against leakage. Refer to 18. Caution
for refrigerant leaks on page44.
• Do not install in the following locations:
- Locations where sulfurous acids and other corrosive gases may
be present in the atmosphere. Copper piping and soldered joints
may corrode, causing refrigerant to leak.
- Locations where a mineral oil mist, spray or vapor may be present in the atmosphere. Plastic parts may deteriorate and fall off or
cause water leakage.
- Locations where equipment that produces electromagnetic
waves is found. The electromagnetic waves may cause the control system to malfunction, preventing normal operation.
- Locations where ammable gases may leak, where thinner,
gasoline and other volatile substances are handled, or where
carbon dust and other incendiary substances are found in the
atmosphere. Leaked gas may accumulate around the unit, caus-
ing an explosion.
• When installing, take strong winds, hurricanes or earthquakes into
account, improper installation may result in the unit turning over.
3
B
4
B
A
A
A
4.2. Weather related precautions
• Select a place where the rain can be avoided as much as possible.
• Be sure that the air inlet of the unit is not positioned towards the
main wind direction. Frontal wind will disturb the operation of the
unit. If necessary, use a screen to block the wind.
• Ensure that water cannot cause any damage to the location by
adding water drains to the foundation and prevent water traps in the
construction.
• Do not install the unit in areas where the air contains high levels of
salt such as that near the ocean.
43P362438-3H English
4.3. Selecting a location in cold climates
NOTE
• When operating the unit in a low outdoor ambient temperature, be
sure to follow the instructions described below.
• The following images are for reference only. For more details contact your local dealer.
To prevent exposure to wind and snow, install a bafe plate on the air
side of the outdoor unit:
1
5. Dimensions and service space
5.1. Dimensions of outdoor unit
REYQ72TTJU/TYDN
1
2
3
18
8
7
4
5
6
REYQ96-168TTJU/TYDN
10
9
1
11
12
13
15 16 17
14
2
3
1 Bafe plate
In heavy snowfall areas it is very important to select an installation site
where the snow will not affect the unit. If lateral snowfall is possible,
make sure that the heat exchanger coil is not affected by the snow
(if necessary construct a lateral canopy). Install the unit high enough
from the ground to prevent burying in snow.
1
2
1 Construct a large canopy.
2 Construct a pedestal.
NOTE
When operating the unit in a low outdoor ambient temperature with
high humidity conditions, make sure to take precautions to keep the
drainholes of the unit free by using proper equipment such as the optional drainpan heater. For more information contact your local dealer.
18
8
7
4
5
6
10
9
11
12
13
14
1615 17
Unit: in. (mm)
REYQ72TTJU/TYDN REYQ96-168TTJU/TYDN
1
2
9/16 (15) × 7/8 (22.5) × 4 oblong holes
30-3/16 (766) 42-3/8 (1076)
3
Foundation bolt hole
Pitch of foundation bolt holes
Pitch of foundation bolt holes
28-7/16-29 (722-737)
4 2-5/8 (67)
5 2-5/8 (67)
6 30-3/16 (767)
7 11-1/8 (282)
8 4-13/16 (122)
9 5-3/16 (132)
10 3-7/8 (98)
11 4-3/16 (107)
12 10-11/16 (272)
13 18-1/16 (458) 19-3/4 (502)
14 36-11/16 (932) 48-7/8 (1242)
15 6-9/16 (167)
16 8-9/16 (217)
17 10-1/2 (267)
18 66-11/16 (1694)
5 3P362438-3H English
5.2. Service space
1 2
The space around the unit is adequate for servicing and the minimum
space for air inlet and air outlet is available (refer to the gure below
and choose one of the possibilities).
b
a
a
c
a
a
d
3
b
e
f
a
a
d
c
b
e
d
e
c
4
b
e
d
a
a
b
c
5
b
e
f
a
a
d
ABCD Sides along the installation site with obstacles
Suction side
c
h2
<Front side> <Suction side>
h2
a
b +
2
or more
Service
space
or more
h1
+
2
h1
b
a 59 in. (1500 mm)
b 19-5/8 in. (500 mm)
• In case of an installation site where sides A+B+C+D have obstacles, the wall heights of sides A+C have no impact on service space
dimensions. Refer to the foregoing gure for impact of wall heights
of sides B+D on service space dimensions.
• In case of an installation site where only the sides A+B have ob-
stacles, the wall heights have no inuence on any indicated service
space dimensions.
• The installation space required on these drawings are for full load
heating operation without considering possible ice accumulation.
If the location of the installation is in a cold climate, then all dimensions above should be >19-5/8 in. (500 mm) to avoid accumulation
of ice in between the outdoor units.
INFORMATION
• The service space dimensions in above gure are based on cooling
operation at 95°F (35°C) ambient temperature (standard conditions).
• If the design outdoor temperature exceeds 95°F (35°C) or the
heat load exceeds maximum capacity in all the outdoor unit, take
an even large space on the intake shown in gure in 5.2. Service
space.
A+B+C+D A+B
a≥3/8 (10)
b≥11-3/4 (300)
1
c≥3/8 (10)
d≥19-5/8 (500)
a≥3/8 (10)
b≥11-3/4 (300)
2
c≥3/8 (10)
d≥19-5/8 (500)
e≥3/4 (20)
a≥3/8 (10)
b≥11-3/4 (300)
c≥3/8 (10)
3
d≥19-5/8 (500)
e≥3/4 (20)
f≥23-5/8 (100)
a≥3/8 (10)
b≥11-3/4 (300)
4
c≥3/8 (10)
d≥19-5/8 (500)
e≥3/4 (20)
a≥3/8 (10)
b≥19-5/8 (500)
c≥3/8 (10)
5
d≥19-5/8 (500)
e≥3/4 (20)
f≥35-7/16 (900)
a≥2 (50)
b≥3-7/8 (100)
c≥2 (50)
d≥19-5/8 (500)
a≥2 (50)
b≥3-7/8 (100)
c≥2 (50)
d≥19-5/8 (500)
e≥3-7/8 (100)
a≥2 (50)
b≥3-7/8 (100)
c≥2 (50)
d≥19-5/8 (500)
e≥3-7/8 (100)
f≥19-5/8 (500)
a≥2 (50)
b≥3-7/8 (100)
c≥2 (50)
d≥19-5/8 (500)
e≥3-7/8 (100)
a≥2 (50)
b≥19-5/8 (500)
c≥2 (50)
d≥19-5/8 (500)
e≥3-7/8 (100)
f≥23-5/8 (600)
a≥7-7/8 (200)
b≥11-3/4 (300)
a≥7-7/8 (200)
b≥11-3/4 (300)
e≥15-3/4 (400)
Unit: in.(mm)
INFORMATION
Further specications can be found in the Engineering Data Book.
63P362438-3H English
6. Inspecting, handling and unpacking the unit
6.1. Inspection
At delivery, the unit must be checked and any damage must be reported immediately to the carrier’s claims agent.
6.3. Unpacking
CAUTION
To avoid injury, do not touch the air inlet or aluminum ns of the unit.
6.2. Handling
1 When handling the unit, take into account the following:
Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor damage.
2 Choose beforehand the path along which the unit is to be brought
in.
3 Bring the unit as close as possible to its nal installation position in
its original package to prevent damage during transport.
2
4
2
4
1
4
3
3
1 Packaging material
2 Belt sling
3 Opening
4 Protector
4 Lift the unit preferably with a crane and 2 belts of at least 27 ft.
(8 m) long as shown in the gure above.
Always use protectors to prevent belt damage and pay attention to
the position of the unit’s center of gravity.
NOTE
Use a belt sling of ≤3/4 in. (20 mm) wide that adequately bears the
weight of the unit.
WARNING
Tear apart and throw away plastic packaging bags so that children will
not play with them. Children playing with plastic bags face danger of
death by suffocation.
1 Remove the 4 bolts xing the unit to its pallet.
2 Make sure that all accessories as mentioned in 2.1. Accessories
supplied with this unit on page3 are available in the unit.
6.4. Installing the unit
Make sure the unit is installed level on a sufciently strong base to
prevent vibration and noise.
NOTE
When the installation height of the unit needs to be increased, do not
use stands to only support the corners.
A
≥3-7/8 in. (100 mm)
X Not allowed
O Allowed
A
A
A
A
A
A
A
A
A
A
A
A
A forklift can only be used for transport as long as the unit remains on
its pallet as shown above.
7 3P362438-3H English
• The height of the foundation must at least be 5-7/8 in. (150 mm )
1
from the oor.
In heavy snowfall areas, this height should be increased, depending
on the installation place and condition.
• The unit must be installed on a solid longitudinal foundation (steel
beam frame or concrete) and make sure the base under the unit is
larger than the gray marked area.
6
7
3
4
2
5
Dimensionsforabovegure
1 Hole for foundation bolt
2 Inner dimension of
2
the base
Distance between
3
foundation bolt holes
f9/16 in. (15 mm) dia: 4 positions
24-7/8 in. (631 mm)
29 in. (729 mm)
4 Depth of unit 30-1/8 in. (765 mm)
Outer dimension of the
5
base
Longitudinal foundation
6
dimension
Distance between
7
foundation bolt holes
≥30-1/8 in. (765 mm)
72T type: 36-9/6 in. (930 mm)
96-168T type: 48-13/16 in. (1240 mm)
72T type: 30-3/16 in. (766 mm)
96-168T type: 42-3/8 in. (1076 mm)
• Fasten the unit in place using 4 foundation bolts
M12. It is best to screw in the foundation bolts
A
until their length remains 13/16 in. (20 mm)
above the foundation surface.
A=13/16 in. (20 mm)
NOTE
• There are restrictions on the refrigerant pipe connecting order
between outdoor unit in the case of the multi system.
See 1.2.2. Outdoor unit combinations on page2 for detail.
• When installing on a roof, make sure the roof oor is strong enough
and be sure to waterproof all work.
• Make sure the area around the machine drains properly by setting
up drainage grooves around the foundation.
• Drain water is sometimes discharged from the outdoor unit when it
is running.
• For anti-corrosion type, use nuts with resin washers. If the paint on
nut connections comes off, the anti-corrosion effect may decrease.
6.5. Method for removing shipping plate
The shipping plate installed over the compressor leg for protecting the
unit during transport must be removed. Proceed as shown in the gure
and procedure below.
Shipping plate
Shipping plate
Front
96-168T type
Shipping plate
Front
72T type
1 Remove shipping plates.
2 Be sure to tighten compressor xing bolts again. (9.1ft⋅lbf
(12.3N⋅m))
Bolt
Compressor
Resin washer
Shipping plate
NOTE
If the unit is operated with the shipping plate still attached, abnormal
vibration or noise may be generated.
83P362438-3H English
7.
Refrigerant pipe size and allowable pipe length
7.1. General information
NOTE
The refrigerant R410A requires strict cautions for keeping the system
clean, dry and tight.
• Clean and dry: foreign materials (including mineral oils or moisture)
should be prevented from getting mixed into the system.
• Tight: R410A does not contain any chlorine, does not destroy
the ozone layer, and does not reduce earth’s protection against
harmful ultraviolet radiation. R410A can contribute slightly to the
greenhouse effect if it is released. Therefore we should take special
attention to check the tightness of the installation.
7.2. Selection of piping material
NOTE
Piping and other pressure containing parts shall comply with the applicable legislation and shall be suitable for refrigerant. Use phosphoric
acid deoxidized seamless copper for refrigerant.
NOTE
• All eld piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations.
• After piping work is complete, do not under any circumstances open
the stop valve until 9. Field wiring on page18 and 12. Checking of
device and installation conditions on page24 are complete.
• Do not use ux when brazing the refrigerant piping. Use the phosphor copper brazing ller metal (B-Cu93P-710/795 : ISO 3677)
which does not require ux. Flux has extremely negative effect on
refrigerant piping systems. For instance, if the chlorine based ux is
used, it will cause pipe corrosion or, in particular, if the ux contains
uorine, it will damage the refrigerant oil.
• Use only pipes which are clean inside and outside and which do not
accumulate harmful sulfur, oxidants, dirt, cutting oils, moisture, or
other contamination. (Foreign materials inside pipes including oils
for fabrication must be 0.14 gr/10 ft. (30 mg/10 m) or less.)
• Use the following items for the refrigerant piping.
Material : Jointless phosphor-deoxidized copper pipe.
Size : See 7.3. Selection of piping size to determine the correct
size.
Thickness : Select a thickness for the refrigerant piping which
complies with national and local laws.
• For piping work, follow the maximum tolerated length, difference in
height, and length after a branch indicated in the 7.5. System piping
(length) limitations.
• Outdoor unit multi connection piping kit and refrigerant branching
kit (sold separately) are needed for connection of piping between
outdoor units (in case of multi system) and piping branches.
• Use only separately sold items selected specically according to
the outdoor unit multi connection piping kit, the refrigerant branching kit selection in the 7.4. Selection of refrigerant branch kits.
7.3. Selection of piping size
Determine the proper size referring to following tables and reference
gure (only for indication).
B B B
x
a
A
D
1
b
E
EE
5 6
43
1 Multi BS unit
2 Single BS unit
3-8 VRV indoor unit
a, b Refrigerant branching kit
x, y Outdoor unit multi connection piping kit
7.3.1. Pipingbetweenoutdoorunitand(rst)refrigerant
branch kit: A, B, C
Choose from the following table in accordance with the outdoor unit
total capacity type, connected downstream.
Outdoor unit
capacity type
REYQ72T type
REYQ96T type
REYQ120T type
REYQ144T type
REYQ168T type
REYQ192,216T type
REYQ240T type
REYQ264-336T type
REYQ360-456T type
Suction gas
D
2
b
E
7 8
pipe
3/4 in.
(19.1 mm)
7/8 in.
(22.2 mm)
1-1/8 in.
(28.6 mm)
1-3/8 in.
(34.9 mm)
1-5/8 in.
(41.3 mm)
E
E
Piping outer diameter size
High/Low
pressure gas
(15.9 mm)
(19.1 mm)
(22.2 mm)
(28.6 mm)
(34.9 mm)
C
pipe
5/8 in.
3/4 in.
7/8 in.
1-1/8 in.
1-3/8 in.
y
Liquid pipe
3/8 in.
(9.5 mm)
1/2 in.
(12.7 mm)
5/8 in.
(15.9 mm)
3/4 in.
(19.1 mm)
9 3P362438-3H English
7.3.2. Piping between refrigerant branch kits or refrigerant
branch kit and BS unit: D
Choose from the following table in accordance with the indoor unit
total capacity type, connected downstream. Do not let the connec-
tion piping exceed the refrigerant piping size chosen by the general
system model name.
Piping outer diameter size
Indoor unit
capacity index
< 54
54 ≤ × < 72
72 ≤ × < 111
111 ≤ × < 162
162 ≤ × < 230
230 ≤ × < 300
> 300
Example:
Downstream capacity for D = capacity index of (unit 3 + unit 4 + unit 5
+ unit 6)
Suction gas
pipe
5/8 in.
(15.9 mm)
3/4 in.
(19.1 mm)
7/8 in.
(22.2 mm)
1-1/8 in.
(28.6 mm)
1-3/8 in.
(34.9 mm)
1-5/8 in.
(41.3 mm)
High/Low
pressure gas
pipe
1/2 in.
(12.7 mm)
5/8 in.
(15.9 mm)
3/4 in.
(19.1 mm)
1-1/8 in.
(28.6 mm)
Liquid pipe
3/8 in.
(9.5 mm)
1/2 in.
(12.7 mm)
5/8 in.
(15.9 mm)
3/4 in.
(19.1 mm)
• For REFNET joints other than the rst branch (example REFNET
joint b - see 7.3. Selection of piping size), select the proper branch
kit model based on the total capacity index of all indoor units connected after the refrigerant branch.
Indoor unit
capacity index
< 72 KHRP25A22T9 KHRP26A22T9
72 ≤ × < 111
111 ≤ × < 246
≥246 KHRP25M73TU9 KHRP26M73TU9
• Concerning REFNET headers, choose from the following table in
accordance with the total capacity of all the indoor units connected
below the REFNET header.
Indoor unit
capacity index
< 72
72 ≤ × < 111
111 ≤ × < 230
≥230 KHRP25M73HU9 KHRP26M73H9
3 pipes 2 pipes
KHRP25A33T9 KHRP26A33T9
KHRP25M72TU9 KHRP26M72TU9
3 pipes 2 pipes
KHRP25M33H9
KHRP25M72H9 KHRP26M72H9
Kit name
Kit name
KHRP26M22H9:
maximum 4 indoor units
or
KHRP26M33H9:
maximum 8 indoor units
KHRP26M33H9
INFORMATION
Maximum 8 branches can be connected to a header.
7.3.3. Piping between refrigerant branch kit and indoor unit: E
Pipe size for direct connection to indoor unit must be the same as the
connection size of the VRV indoor unit.
Indoor unit
capacity index
07, 09, 12, 18 1/2 in. (12.7 mm) 1/4 in. (6.4 mm)
24, 30, 36, 42,
48, 54
72 3/4 in. (19.1 mm)
96 7/8 in. (22.2 mm)
Piping outer diameter size
Gas pipe Liquid pipe
5/8 in. (15.9 mm)
3/8 in. (9.5 mm)
7.4. Selection of refrigerant branch kits
For piping example, refer to 7.3. Selection of piping size on page9.
• When using REFNET joints at the rst branch from the outdoor unit,
choose from the following table in accordance with the capacity of
the outdoor unit (example: REFNET joint a - see 7.3. Selection of
piping size).
Outdoor unit capacity type Kit name
REYQ 72, 96T type KHRP25A33T9
REYQ 120-216T type KHRP25M72TU9
REYQ 240-456T type KHRP25M73TU9
• How to choose an outdoor multi connection piping kit (needed if the
outdoor unit capacity type is 192 or more). Choose from the following table in accordance with the number of outdoor units.
Number of outdoor units Branch kit name
2 BHFP26P100U
3 BHFP26P151U
103P362438-3H English
7.5. Systempiping(length)limitations
Outdoor unit
<Exampleofrefrigerantpiping(8indoorunitsareconnected)>
: BS unit (Multi BS)
First outdoor unit
multi connection
piping kit (*1)
a
A
e f
1 2
(*1) “ ” represents an outdoor unit multi connection piping kit.
The outdoor unit multi connection piping kit must always be installed horizontally, paying attention to the installation restrictions indicated in
“8.Precautions on refrigerant piping”.
<Exampleofconnection(8indoorunitsareconnected)>
Outdoor unit
side
(1)PipingfromtheoutdoorunittotheBSunit
(3 lines): 3 pipes
Outdoor unit
H3
r
b c
d
B-1 B-2 B-3
g
D
(1) (2)
BS unit
Suction gas pipe
High/Low pressure gas pipe
Liquid pipe
t
B
j
k
h
i
4 5 6 7
3
Indoor unit
B1
: BS unit (Single BS)
B3B2
,
REFNET joint (A-E)
C
m
side
E
n
1 7
o
: Indoor unit (cooling/heating
selectable)
8
: Indoor unit (cooling only)
(Note 4)
H1
p
8
H2
(2)PipingfromtheBSunittotheindoorunit,andfromtherefrigerantbranchkittothecooling-onlyindoorunit(Note1)
(2 lines): 2 pipes
Note 1: The 2-line gas pipe that is branched from the 3-line pipe and goes to the cooling-only indoor unit should be connected to the suction gas
pipe.
(Suction) gas pipe
Liquid pipe
11 3P362438-3H English
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