INSTALLATION

DAIKIN MANUAL
MODULAR AIR
COOLED (INVERTER)
CHILLER
— COOLING-ONLY —
— HEAT PUMP —
R410A Compatible Model
Applicable with the below models
- Heat Pump Type Before Usage
UAL230DR5 UAL230ER5 Safety Precautions .............................................1
UAL340DR5 UAL450DR5 Names of Parts ...................................................4
UAL450ER5-F UAL450ER5-R Names of Parts on the Control Panel and
UAL450DR5-FC Functions ............................................................7
and other derived models, such as overseas voltage models

- Cooling-only type Installation ........................................................10

UAL230D5 UAL230E5 Before Your Test run .........................................32

UAL230D5LC UAL340D5 Operating Range ..............................................35
UAL450D5 UAL1000D5 Specification Parameters++++++++..37
UAL450E5-F UAL450E5-R Operating Range of the Unit .............................41
UAL450D5-FC
and other derived models, such as overseas voltage models

Thank you for purchasing this MODULAR AIR

COOLED CHILLER
This Installation manual explains how to use
the equipment and important safety
precautions. READ IT CAREFULLY BEFORE
USING THE EQUIPMENT
Keep this manual handy for future reference.
When you receive your guarantee from
your DAIKIN dealer, keep it together with this
manual in a safe place.

Efficient use saves energy!

0
 Safety Precautions
limit in the event of a leakage. Otherwise, this may lead to an
To gain full advantage of the chiller's functions and to avoid accident due to oxygen depletion.
malfunction due to mishandling, we recommend that you
read this instruction manual carefully before use. Contact professional personnel about attachment of
This chiller is classified under "appliances not accessible to accessories and be sure to use only accessories specified
the general public". by the manufacturer.
If a defect results from your own workmanship, it may result
• The precautions described herein are classified as in water leaks, electric shock or fire.
WARNING and CAUTION. They both contain
important information regarding safety. Be sure to Consult your local dealer regarding relocation and
observe all precautions without fail. reinstallation of the chiller.
Improper installation work may result in leakage, electric shocks
or fire hazards.
WARNING Failure to follow these instructions Be sure to use fuses with the correct ampere reading.
properly may result in personal injury or Do not use improper fuses, copper or other wires as a substitute,
loss of life. as this may result in electric shock, fire, injury or damage to the
unit.
CAUTION Failure to observe these instructions Be sure to earth the unit.
properly may result in property damage Do not earth the unit to a utility pipe, lightning conductor or
or personal injury, which may be serious telephone earth lead.
depending on the circumstances. Imperfect earthing may result in electric shocks or fire. A high
surge current from lightning or other sources may cause
• After reading, keep this manual in a convenient place damage to the chiller.
so that you can refer to it whenever necessary. If the
equipment is transferred to a new user, be sure also Be sure to install an earth leakage breaker.
to hand over the manual. Failure to install an earth leakage breaker may result in electric
shocks or fire.
Precautions during installation Consult the dealer if the chiller submerges owing to a
Check the following items in order to use the chiller at the
maximum potential. If any of the items are not in natural disaster, such as a flood or typhoon.
proper working order, be sure to take the necessary Do not operate the chiller in that case, or otherwise a
measure before attempting operation. malfunction, electric shock, or fire may result.

Do not start or stop operating the chiller with the power

WARNING supply breaker turned ON or OFF.
This may cause electric shock or fire.
When the chiller is malfunctioning (giving off a burning Do not use flammable materials (e.g., hairspray or
odour, etc.) turn off power to the unit and contact your insecticide) near the product.
local dealer. Do not clean the product with organic solvents such as
Continued operation under such circumstances may result paint thinner.
in a failure, electric shocks or fire hazards.
The use of organic solvents may cause crack damage to the
Consult your local dealer about installation work. product, electric shocks, or fire.
Doing the work yourself may result in water leakage, Be sure to use a dedicated power supply for the chiller.
electric shocks or fire hazards. The use of any other power supply may cause heat generation,
fire, or product failures.
Installation should be done following the installation
manual. All wiring must be performed by an authorized electrician.
Incorrect installation may cause leaking, electric shock, or To do wiring, ask your dealer. Never do it yourself.
fire. Injuries may result if the unit falls.
Make sure that a separate power supply circuit is provided
Consult your local dealer regarding modification, repair for this unit and that all electrical work is carried out by
and maintenance of the chiller. qualified personnel according to local laws and regulations.
Improper workmanship may result in water leakage, electric Insufficient power circuit capacity or incorrect work may cause
shocks or fire hazards. electric shock of fire.
Do not place objects, including rods, your fingers, etc., Install the unit on a foundation strong enough to withstand
in the air inlet or outlet. the weight of the unit.
Injury may result due to contact with the chiller's highspeed A foundation of in sufficient strength may result in the unit falling
fan blades. and causing injuries.
Do not modify unit.
Beware of fire in case of refrigerant leakage. This may cause electric shock or fire.
If the chiller is not operating correctly, i.e. not generating
cool or warm air, refrigerant leakage could be the cause.
Consult your dealer for assistance. The refrigerant within
the chiller is safe and normally does not leak. However, in
the event of a leakage, contact with a naked burner, heater
or cooker may result in generation of noxious gas. Do not
longer use the chiller until a qualified service person
confirms that the leakage has been repaired.

Consult your local dealer regarding what to do in

case of refrigerant leakage.
When the chiller is to be installed in a small room, it is
necessary to take proper measures so that the amount of
any leaked refrigerant does not exceed the concentration

1
Be sure to install as prescribed to prepare for strong winds, Children should be supervised to ensure that they do not
earthquakes, etc. play with the unit or its remote controller.
Improper installation could result in the unit overturning or Accidental operation by a child may result in impairment of
falling. bodily functions and harm health.
Use the prescribed cable for wiring, and make sure that To avoid injury, do not touch the aluminium fin of the cross
connections are secure. fincoil.
Be sure to securely fasten cables to their terminals so that
external force is not conveyed. Improper connections and Do not place objects in direct proximity of the chiller and
fastening could produce heat or could result in fire. do not let leaves and other debris accumulate around the
unit.
Do not use any heating medium other than water for Leaves are a hotbed for small animals which can enter the unit.
chilled(hot) water. Once in the chiller, such animals can cause malfunction smoke
Doing so could result in fire or explosion. or fire when making contact with electrical parts.
Do not block air inlets nor outlets.
CAUTION Impaired air flow may result in insufficient performance or
trouble.
Do not use the chiller for purposes other than those Do not let children play on or around the unit.
for which it is intended. If they touch the unit carelessly, injury may be caused.
Do not use the chiller for cooling precision instruments, food,
plants, animals or works of art as this may adversely affect the Never touch the internal parts of the control panel.
performance, quality and/or longevity of the object concerned. Do not remove the front panel. Touching certain internal
parts will cause electric shocks and damage to the unit. Please
Do not remove the chiller's fan guard. consult your dealer about checking and adjustment of internal
The guard protects against the unit's high speed fan, which may parts.
cause injury.
Do not leave the control panel wherever there is a risk
After prolonged use, check the unit stand and its mounts of wetting.
for damage. If water gets into the remote controller there is a risk of electrical
If left in a damaged condition, the unit may fall and cause injury. leakage and damage to electronic components.

Do not place flammable sprays or operate spray containers Use chilled(hot) water that conforms to water quality
near the unit as this may result in fire. standards.
Poor quality water could result in water leaks.
Before cleaning, be sure to stop unit operation, turn the
breaker off or remove the power cord. Do not attempt to run the compressor by pushing the
Otherwise, an electric shock and injury may result. magnetic contactor with your finger.
Doing so could result in electrical shock or fire.
To avoid electric shocks, do not operate with wet hands. Do not mistake the types of refrigerant and refrigeration oil
Doing so could result in fire or explosion.
Do not allow a child to mount on the chiller or avoid
placing any object on it. Do not expose the chiller to harsh environments.
Falling or tumbling may result in injury. The chiller should not be installed near hot water springs, the
seashore or areas exposed to oil. Corrosion caused by such
Be sure that children, plants or animals are not exposed elements can result in electrical shock or fire.
directly to airflow from the unit, as adverse effects may
ensue. Never touch parts which tend to become hot such as
compressors and refrigerant piping.
Do not wash the chiller with water, as this may result in Doing so could result in skin burning.
electric shocks or fire.
Be sure to dispose of brine and cleansing solutions as
Do not place water containers (flower vases, etc.) on the stipulated by law.
unit, as this may result in electric shocks or fire. Illegal disposal is not only against the law, but can harm health
and the environment.
Do not install the chiller at any place where there is a
danger of flammable gas leakage. Be sure to provide each chiller with a circuit breaker.
In the event of a gas leakage, build-up of gas near the chiller Using a single circuit breaker for more than one chiller could
may result in fire hazards. result in electrical shock or fire.
Arrange the drain to ensure complete drainage. Do not run power supply wiring between chillers.
If proper drainage from the outdoor drain pipe does not occur Doing so could result in fire.
during chiller operation, there could be a blockage due to dirt Do not operate the chiller with the cabinet or electrical
and debris build-up in the pipe.
This may result in a water leakage from the indoor unit. Under parts box cover open.
these circumstances, stop chiller operation and consult your Doing so could result in electrical shock or fire.
dealer for assistance. Do not attempt to force-operate the chiller by short
circuiting safety devices, etc.
The appliance is not intended for use by unattended young
children or infirm persons. Doing so could result in fire or explosion.
Impairment of bodily functions and harm to health may result.

2
Do not change settings of safety devices.
Doing so could result in fire, etc.
Do not used chilled(hot) water for drinking or hot water
supply.
Doing so could be harmful to health.

Do not mistake the types of refrigerant and refrigeration

oil.
Doing so could result in fire or explosion.
Do not allow water to remain in the water piping during
prolonged idle periods.
For prolonged idle periods you should fill the water pipes with
antifreeze or drain all the water from the pipes. Failure to do so
could result in leaking.
Be sure to dispose of brine and cleansing solutions as
stipulated by law.
Illegal disposal is not only against the law, but can harm health
and the environment.

Pay attention to ventilation when repairing indoors.

If refrigerant leaks and the room is not sufficiently ventilated, it
could result in accidents caused by lack of oxygen.
Do not solder the refrigerant fusible plug.
Using a fusible plug that does not conform to specifications
could result in explosion.
Check open-closed state of all valves before usage.
Check valves in accordance with instructions given in the
operation manual and on the nameplate.
In particular, be sure stop valve for safety valves are
opened while the equipment is running. If valves are opened or
closed when they shouldn't be, water may leak and in worse
cases, the equipment may catch fire or explode.

3
 Names of Parts
UAL230D5LC/D(R)5

Fan motor

Air outlet deflector

Fin heat exchanger

Front protective net

Scroll compressor

Accumulator
Water inlet

Electrical components Water outlet

UAL230E(R)5

Fan motor
Air outlet deflector

Fin heat exchanger

Front protective net

Scroll compressor
Water inlet

Accumulator
Electrical components Water outlet
Power interface

4
UAL340/450D(R)5(-FC)

Fan components

Electric components

Fin heat exchanger

Plate heat exchanger

Scroll compressor
Liquid-vapor separator

UAL450E(R)5-F/R

Fan motor

Air outlet deflector

Fin heat exchanger

Electrical components

Water inlet
Accumulator

Scroll compressor Water outlet

Oil separator

5
UAL1000D5

Fan motor

Fin heat exchanger

Water inlet

Scroll compressor Water outlet

Accumulator
Liquid receiver

6
 Names of Parts on the Control Panel and Functions

Controller
The control panel of the chiller is provided with multidisplay functions, thus making the controller
multifunctional.
<Control Panel>

Digital display unit

Dipswitch 1
Reservation key

Dipswitch 2
SW1 K1 K2 K3 K4

Dipswitch 4
SW3 SW4
SW2

Dipswitch 3

B
RESET

K5
A

COM2
B

Reset key Communications interface

A

COM1

Wiring diagram for the pump and auxiliary electric heating

Please see details view of the wiring diagram in the air conditioning unit.

DIP and Address Settings

The controller of the unit has the functions of terminal 2-way valve interlock control, automatic startup after
restoration of power failure, water inlet/outlet temperature control, DIP for the quantity of slave units and the
master/slave address rotary encoder. The address DIP and the number of slave units must be set according to
the specific situation after installation. In addition, users must record the address number and installation
position, and save them as an important file for reference during maintenance.

Dialing upward: 1
1 2 3 4 5 6 7 8
Dialing downward: 0

1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

7

DIP Settings
 Feature function DIP position
DIP Selection
DIP Type DIP Position Remarks
ON OFF
1 Master unit Slave unit -
Without automatic startup
With automatic startup after
SW1 4 after restoration of power Master unit valid
restoration of power failure
failure
Terminal 2-way valve interlock Terminal 2-way valve
5 -
enabled interlock disabled
Water outlet
Water outlet temperature Water inlet temperature temperature control
SW2 7
control* control needs to be
customized
Notes:
The SW2.7 DIP position has the water inlet/outlet temperature control function, and water inlet temperature control is the
standard factory configuration function. In case water outlet temperature control is required according to the actual situation,
it is necessary to customize the water outlet temperature control accessory package, with the header pipe water outlet
temperature sensor RT5 and the connecting line. To avoid frequent startup and shutdown of the unit, the number of compressors
in the module combination using the water outlet temperature control must be greater than 8 sets. Water outlet temperature
control is forbidden for the units of MAC260/450/500DR5-F(C) and MAC500DR5LH. Water outlet temperature control is adopted
by default for the unit MAC450D5FC.

 DIP position for the quantity of slave units (SW2)

DIP Position DIP Position
Quantity of Quantity of
1 2 3 4 1 2 3 4
slave units slave units
0 0 0 0 0 8 1 0 0 0
1 0 0 0 1 9 1 0 0 1
2 0 0 1 0 10 1 0 1 0
3 0 0 1 1 11 1 0 1 1
4 0 1 0 0 12 1 1 0 0
5 0 1 0 1 13 1 1 0 1
6 0 1 1 0 14 1 1 1 0
7 0 1 1 1 15 1 1 1 1
Notes:
Positions 1-4 of SW2 represent the quantity of slave units. The master units must set the quantity of slave units to be
connected, while slave units do not need to set the same;

 Model DIP position

SW1.2/3/6/7/8 and SW2.5/6/8 are model DIP positions for the unit, which do not represent specific functions.
For details of the DIP position, please refer to the electrical schematic diagram of the corresponding model.

Address Encoder Setting

The ODU address is the address of the master unit when it is set as the master unit, and is the address of the
slave unit when it is set as the slave unit. The master unit address ranges from 0 to 99:
Master Master Master Master
SW3 SW4 unit SW3 SW4 unit SW3 SW4 unit SW3 SW4 unit
address address address address
0 0 1# 0 8 9# 1 6 17# 2 4 25#
0 1 2# 0 9 10# 1 7 18# 2 5 26#
0 2 3# 1 0 11# 1 8 19# 2 6 27#

8
 0 3 4# 1 1 12# 1 9 20# 2 7 28#
0 4 5# 1 2 13# 2 0 21# 2 8 29#
0 5 6# 1 3 14# 2 1 22# 2 9 30#
0 6 7# 1 4 15# 2 2 23# 3 0 31#
0 7 8# 1 5 16# 2 3 24# 3 1 32#

The ODU address is the address of the master unit when it is set as the master unit, and is the address of the
slave unit when it is set as the slave unit. The slave unit address ranges from 0 to 14:
SW3 SW4 Slave unit address SW3 SW4 Slave unit address
0 0 0# 0 8 8#
0 1 1# 0 9 9#
0 2 2# 1 0 10#
0 3 3# 1 1 11#
0 4 4# 1 2 12#
0 5 5# 1 3 13#
0 6 6# 1 4 14#
0 7 7#

Notes:
1. Address codes in the same system cannot be duplicate.
2. Prepare for commissioning with power-on only after setting the address code.
3. The inner side of the control box of the unit is attached with electrical wiring diagram of the unit, which provides detailed
descriptions for DIP setting. Please keep it properly.

9
 Installation
<Installation Manual>

Installation Location
With care given to the following requirements, get customer's approval, then select the installation
location. Using the following check column, re-check the installation related items:
 Check to see if the air diffuser side is not affected by a seasonal wind. (Place exceeding the
wind velocity 10 m) .

Affected
Not affected
Study to provide a windbreak plate and windbreak wall (take action for windbreak).(A windbreak plate
is optionally available.)
 A place where no trouble is given to the house next door.
 A safe place which can endure machine weight and vibration, and where the chiller can be installed
horizontally.
 A place where combustible gas may not leak.
 Check to see if any action is taken for vibration-proof work

Yes
No
Vibration is transmitted not only from the chiller main body foundation but from water piping, and
noise may be generated from the floor and wall surface. Where the chiller is installed on the rooftop in
particular:
 The installation position (building beam position) is also important.
 Check also during test run.
 Check to see if the drain works and drain path are satisfactory

Provided
Not provided
For this machine, drain water is generated, depending on the operation condition. As needed,
provide a drain ditch around the chiller for draining.
 Check to see if the service & maintenance space is taken into consideration

Water piping
Electrical equipment
Pump
Chiller maintenance
Strainer cleaning
 Pay special attention to the following items when the machine is installed in a snowy place
 Make the foundation as high as possible.
 Attach a snow protective hood (optional).
 Detach the rear suction grille to prevent snow from staying in the rear suction grille. (Bend the grille
vertically: it will readily be removed.)

10

Installation space
The units must be installed by Daikin service personnel or personnel who are specially trained. The
installation must abide by local laws and regulations in aspects of electricity, construction and
environment protection as well as meet the requirement of product installation instructions.
The instructions, warranty, accessories and packing list of the units are placed on the shadow area
on the right side of the units before delivery, as shown in the figure on the left side. Reserve maintenance
space as large as possible permitted by the onsite conditions. If the units are installed in snowy area, take
measures against the snow for the normal operation of units.
UAL230D5LC/D(R)5/E(R)5

Notes:
To ensure the stable operation of the
unit and reserve the maintenance
space, obstacles should be avoided
around the unit (defined as the height
of the obstacle when the height is
higher than the part above the bottom
of the heat exchanger), and the
installation space should meet the
corresponding graphic requirements
of the corresponding unit. See the
table below for installation spacing.

Installation space for single water chillers L1 L2 L3

400 800 100

Deflector
＞ 45?
Unit:mm

≥ L1+h1 ≥ L1+h2
＞1000

h1

h2
＞300

Front
≥L1

≥ L3 Back
≤Top of fan gurad

≥ L1

Front ≥ L1
<610>

<210>

Front ≥ L2
=L1

11
 UAL340/450D(R)5(-FC) UAL450E(R)5-F/R

L1 L2 L3

 Installation space for single chiller 500 800 600

Unit:mm
Deflector
＞45°

≥L1+h1 ≥L1+h2
＞1200

h1 h2
＞300

Front
≥L1

≥L3 Back
≤Fan guard panel

≥L1 ≥ L1

Front

≥L2
≥L1

Front

12
 UAL1000D5
Air discharge

Air discharge
Air discharge

Air inlet
Air inlet

Air inlet

Air inlet

 Installation space for single chiller

deflector

＞45°

≥
＞ ≥
＞300

≥
≥

Water
≤Fan guard panel

connection port
≥ ≥

≥
≥

13
 Installation space for multiple water chillers
UAL230~450 Installation spacing requirements
Notes:
Cross wall 1. When there are obstacles such
as walls around multiple combined units,
the installation spacing must meet the
＞L1 ＞A corresponding spacing requirements of
＞L2 the corresponding units;
2. For single-row/single-column
＞L Side of the drainage pipe installation, if the side of the drainage
Straight wall
pipe is in the row/column direction, the
Number of installation spacing must be greater than
rows (N2) A; If the side of the drainage pipe is in
the column/row direction, the installation
spacing needs to meet the requirements
of "Installation space for single water
Number of columns (N1) chiller".

1. The installation spacing A needs to be greater than 800mm;

2. Requirements for the distance L1/L2 from the wall: when the wall height H>2300mm, L1/L2>2000mm; when the wall
height H≤2300mm, L1/L2>(H-300)mm.
3. Combined installation spacing L (models and applicable table parameters are as follows):

UAL230D5LC/D(R)5/E(R)5
Table 1 Minimum spacing of assemble installation unit ：mm
Column Number
1 2 3 4 5 6 7 8 9 10 ……
1 /
2
L 3 400
i
n 4
e
N 5 800
u
m 6 1200
be
r 7 1600
8 600 800 2000
9
Please contact with the
10 manufacturer
……
Note:For
Note: the installation as shown in Fig.1(both the horizontal and vertical walls exist, therefore,
in the calculation, the column number shall be plus by 1,and the line number shall be plus by 2;
For example:In
example: Fig.1, the number of columns is 3 + 1 = 4, the number of lines is 3 + 2 = 5, L value is 800mm;
In Fig.2, the number of columns is 3 and the number of lines is 3, L value is 400mm.

UAL340D(R)5 UAL450D(R)5-FC UAL450E(R)5-F/R

Table 2 Minimum spacing of assemble installation unit ：mm
Column Number
1 2 3 4 5 6 7 ……
1 /
2
L 600
i 3
n 1000
e 4
N 5 1400
u 600
m
be 6 2000
r 800 1000
7
Please contact with the
8
manufacturer
……
Note:For
Note: the installation as shown in Fig.1(both the horizontal and vertical walls exist, therefore,
in the calculation, the column number shall be plus by 1,and the line number shall be plus by 2;
For example:In
example: Fig 1, the number of columns is 3 + 1 = 4, the number of lines is 3 + 2 = 5, L value is 1000mm;
In Fig. 2, the number of columns is 3 and the number of lines is 3, L value is 600mm.

14
 UAL1000 Installation spacing requirements
horizontal wall horizontal wall

＞ ＞
＞ ＞

＞ ＞
vertical wall

Water connection port Water connection port

vertical wall
＞
＞

Line Number

Column Number

1.Installation spacing A has to be greater than 1000mm;

2.Assembly installation spacing L has to be not less than the corresponding value in Table 3;
3.Distance L1, L2 from the wall: When the wall height H> 2400mm, L1, L2> 2500mm; when the wall height H≤2400mm, L1, L2>
(H+100) mm.
Table 3 Minimum spacing of assemble installation unit ：mm
Column Number
1 2 3 4 5 6 7 ……
1 /
2
Li 1000
3
n 1200
e 4
Nu 5 / 1500
m 1000
b 6 2000
er 1200
7 1500 2500
2000
2500 Please contact with
……
the manufacturer
Note:For
Note: the installation as shown in figure(both the horizontal and vertical walls exist, therefore,
in the calculation, the column number shall be plus by 2,and the line number shall be plus by 2;
For example: The number of columns is 3 + 2 = 5, the number of lines is 3 + 2 = 5, L value is 1500mm.

15
 The installation base must be concrete ground or V-iron structure capable of bearing the operating weight
of the units. N indicates the sum of installed modular. Each unit is fastened with four M12 bolts. Rubber
cushions with specifications of 280 x 180 x 20 mm must be installed between the units and installation base.
The installation base must be equipped with drainage facility to drain away the condensate water and
defrosting water.
UAL230D5LC/D(R)5/E(R)5

Unit: mm
UAL340D(R)5 UAL450D(R)5-FC UAL450E(R)5-F/R

Water
inlet

Water
outlet

Foundation bolt M 12X200

16
 Unit center and water outlet position(overlook)

water outlet installation

position (8 pcs) position (4 pcs)

plate heat
Electric control center of gravity exchanger
cabinet

Front

Unit: mm

Model X(mm) Y(mm) A(Kg) B(Kg) C(Kg) D(Kg)

UAL340DR5 1045 500 240 235 195 200
UAL340D5 1058 465 251 256 189 185
UAL450DR5 1080 460 280 300 210 200
UAL450D5 1072 458 280 269 201 192
UAL450D5(60Hz) 1072 458 273 262 196 187
UAL450D(R)5-FC 1096 498 230 250 205 185
UAL450E(R)5-F/R 1069 474 281 288 221 210

Notes：：
 The installation base must be concrete ground or V-iron structure capable of
bearing the operating weight of the units.
 N indicates the sum of installed modular.
 Each unit is fastened with four M12 bolts.
 Four 20mm thick rubber shock absorbers should be installed between the unit
and the installation foundation.
 The installation base must be equipped with drainage facility to drain away the
condensate water and defrosting water, as shown in figure below.

17
 UAL1000D5

Foundation bolt
M12X200
≥
≥
≥ ≥ ≥

≥ Water connection port

Unit center and water outlet position(overlook)

D C

Plate heat
water outlet position(12 pcs) exchanger

center of gravity

A B
Unit: mm
Model X(mm) Y(mm) A(kg) B(kg) C(kg) D(kg)
UAL1000D5 1100 1100 440 440 440 440

18
 ■ Transportation and Carrying-in
The transporting path also changes significantly, depending on the sequence of works. For
smoother working, have a meeting with not only your customer but the constructors. Transporting & lifting
method.
The lifting nylon string used should be as specified in the table on the right.
To prevent damage, insert a patch plate or the like between the chiller and nylon string for
protection.Perform rigging operation according to the following diagram. Support the water chillers at four
points when move them. Do not move with two supporting points, which may cause instability and
dropping of the units. The ropes must be of the same length when rigging. The gravity position has been
taken into consideration in design.
Notes:
 Do not collide with other objects when moving and keep the inclination angle no greater than 15
degrees. Handle with care when grounding.
 Do not use copper pipe connector or water pipe connector as pressure points for moving. Otherwise,
the connector may be deformed or damaged.
 Properly protect the paint on the surface of metal. If it is scratched by edge tools, the surface may get
rusty.
 The sealing cap of the connector is removed only before connecting water pipes.
 If the product is provided with ties for packaging, do not move or handle the product with the ties as
the ties are easy to crack, which may cause dangerous accidents.
 Properly dispose the plastic bags. Keep them away from children to avoid suffocating or poisoning.
 The skid at the bottom of the machine should not be removed before the unit is installed in place.
 A spacer must be provided to avoid damage when a lifter is used to raise or handle the unit.
 Rigging is recommended to move the units. Use rigging ropes with enough strength and hold the
units at the four points as shown in the following figure. Do not move the units with only two supporting
points, which may cause instability and dropping of the units.

UAL230D5LC/D(R)5/E(R)5 UAL340/450D(R)5(-FC) UAL450E(R)5-F/R

Protective cushion Rigging ropes(two pieces)

Rigging ropes
(two pieces)
Protective
cushion

Nylon String
Model Specifications
UAL230D(R)5
8 m min. (2 pcs.)
UAL230 D5LC/D(R)5/E(R)5

UAL340/450D(R)5(-FC)/450E(R)5-F/R 10m min. (2 pcs)

19
UAL1000D5

Suspension ropes
(10m or longer × 2 ropes)

Use suspension ropes that

will withstand the weight
of the unit.
>10m

Spreader bar recommended,and

both sides of pole should be
extended over 100mm out of unit
in order to prevent the hoisting
belt from damaging unit.

>10m

Suspension spots
(front and back,2 spots each)

Latches
(4 places in all)

20
■ Meeting before Work and after ■ Check for Accessories
Completion of Work Check the following accessories.
The chiller has various functions available according to Stainer 1 pcs.
customer's applications. Since the installation Communication line 5m
method, wiring method and water piping method differ,
hold a satisfactory meeting with your contractors before
starting works, and also after completion of the works,
carry out careful checkup.

Meeting Item
Electrical Wiring Works □Use the check column for checking.
1. Power panel position, size and wiring route □Check to see if no wiring is passed through the dangerous
(path) area.
2. Operation method and cooling/heating □ Remote controller □External signal □Local (Test run)
changeover method
3. Recovery method for power failure □Manual reset □Automatic reset
4. Night low-noise mode (Cooling/heating) - □ Provided, (External signal) □None
external signal
5. Snow scattering operation (Forced fan □Provided □None
operation) mode - external signal
6. Water temperature control inlet & outlet □ Inlet □Outlet
(Water feeding) temperature control
7. Water failure protecting relay mounting □ Installed □Not installed
8. Pump wiring work □ Power supply □Operation signal intake (49P) □Safety
device (48P) □Interlock (AXP)
9. Installation of auxiliary heater during defrost □ Provided □safety device 26WH □Operation signal intake
□None
10. Operating condition external indication □ Provided □Operation □Defrost □Abnormal □None
(Lamp, etc.)
11. Thermal storage operation - Required/Not □ Required □Not required
required

Installation Work Checking Items

Determination of water piping path (route) □Check to see if valve operation can be carried out with
ease.
□Check to see if the switch box cover (lid) is easy to open.
□Check to see if the strainer is located in an easy-to-clean
place.
□Check to see if the pump is located in the place where its
condition is easy to check.
Installation for water chiller unit
 Build the base with concrete or mounting bracket. When building the base, take into considerations
about the floor’s intensity, drainage (when the units operate, water drains
away from the units), pipes and cable layout. Insufficient strength may cause
dropping of the units, which causes damage to the units or personal injuries.
 Fasten the water chiller units with anchor bolts to avoid falling down due to
earthquake or strong wind. To prevent strong wind or earthquake, install the
units in right place. Avoid places where the units are easily affected by
strong wind.
 Vibration may transmit to installation parts and the floor and wall may
cause vibration and noises, both of which depend on the installation conditions. Therefore, anti-vibration
measures must be taken (such as an anti-vibration pad).
 Install the corner parts in right place. Otherwise, it may cause instability and the mounting support
may be bent. Any improper installation may cause dropping and personal injuries.

21

Electric connection for water chiller unit
 Before connecting the circuit, strictly abide by the following safety rules and measures:
 The units must be installed by Daikin service personnel or personnel who are specially trained. The
installation must abide by local laws and regulations in aspects of electricity, construction and environment
protection as well as meet the requirement of product installation instructions. Users are not allowed to remove
or add control components. For units damages and personal injuries caused by operations which fail to follow
the rules, Daikin air-conditioner company assumes no responsibility.
 Circuit connecting must refer to Electric connection and parameters. Each machine is provided with
connection figure which is put inside the switch box.
 The earthing wires of the air conditioning unit must be grounded well. Earthing wires cannot be connected
to gas pipes, water pipes, and telephone lines, because poor earthing may result in electric shock.
 Check whether the power supply is of standards before starting.
Cross-sectional area of power cord
(mm²) Max working Max input
Power
Model current power
supply Main line Neutral
Earth wire (A) (kW)
(R/S/T) line
UAL230D5 380-415V/3N~/50Hz 10 10 10 47.2 27.6
UAL230D5 208-230V/3~/60Hz 25 - 16 84.3 26.5
UAL230D5 380V/3~/60Hz 10 - 10 50.2 26.5
UAL230D5 460V/3~/60Hz 10 - 10 41.2 26.5
UAL230DR5 380-415V/3N~/50Hz 10 10 10 47.7 28.6
UAL230D5LC 380-415V/3N~/50Hz 10 10 10 47.2 27.6
UAL230E(R)5 380-415V/3N~ 10 10 10 50.3 30.1
UAL450E(R)5-F/R 380-415V/3N~ 35 25 16 97.9 56.8
UAL340DR5 380-415V/3N~/50Hz 25 16 16 76.2 41.4
UAL340D5 380-415V/3N~/50Hz 25 16 16 76.2 41.4
UAL450DR5 380-415V/3N~/50Hz 35 25 16 99.8 54.0
UAL450DR5-FC 380-415V/3N~/50Hz 35 25 16 100.0 56.2
UAL450D5 380-415V/3N~/50Hz 35 25 16 103.1 55.8
UAL450D5-FC 380-415V/3N~/50Hz 35 25 16 100.0 56.2
UAL450D5 208-230V/3~/60Hz 95 - 50 185.2 55.8
UAL450D5 380V/3~/60Hz 35 - 16 98.9 55.8
UAL450D5 460V/3~/60Hz 25 - 16 81.2 55.8
UAL1000D5 380-415V/3N~/50Hz 95 70 50 208.5 115.3
 The above data are electric parameters for basic module units
 Connection for all the conductors must be secure.
 Keep all the conductors away from refrigerant pipes and movable components like compressor and fan.

22

Wiring diagram of power supply

380-415V/3N~/50Hz
UAL230E(R)5 can be used for 60Hz

L1
L2
L3
N
PE

Breaker with a Breaker with a Breaker with a

current leakage current leakage current leakage
protector protector protector

R S T N R S T N R S T N

Master unit 0#Slave unit 14#Slave unit

208~230V/3~/60Hz
380V/3~/60Hz
460V/3~/60Hz
UAL230/450D5 60Hz

L1
L2
L3
PE

Breaker with a Breaker with a Breaker with a

current leakage current leakage current leakage
protector protector protector

R S T R S T R S T

Master unit 0#Slave unit 14#Slave unit

23
 Wiring Work

Grounding Overseas voltage device：
Check to see if the grounding is rovided. (3-phase, 380. 400. 415 V 50Hz)
To prevent possible electric shocks, the machine is (3-phase, 208-230V 60Hz)
mandatory for grounding.Grounding work must be (3-phase, 380V 60Hz)
performed by a qualified electrician.The grounding (3-phase, 460V 60Hz)
terminal is located inside the switch box. For parts
identification, refer to page 4. NOTE:
UAL230E(R)5、UAL450E(R)5-R can be used for
60Hz.

Electrical Work
The nominal output of the chiller differs from that of a conventional electric motor. Be sure to select
the size of the power supply cable in accordance with local and national cords
by checking the electric characteristics of the unit. For details, contact your
dealer.
Be sure to provide a power supply with an earth leakage
breaker.The chiller can be operated by either local or remote
control (by remote contact input or from the remote controller).

Wiring Work
Before starting work, re-check your customer's requirements according to
the pre-work meeting check table given in page 7 and page 8.Wiring diagram of communication cables for
the master/slave unit and wire controller, please see details view of the wiring diagram in the air
conditioning unit.

Water Piping Work

 Be sure to attach the supplied cold/hot water strainer to
the water inlet side, and provide a dirt pocket in the proper piping
place. If sand, dust and rust pieces or the like intrude into the water
system, the metallic material will be corroded mechanically. (For
the strainer and dirt pocket, periodic maintenance is required.
Select a place that takes account of the maintenance space.)
 The water pump is not supplied with this machine. Attach
a water pump suitable for piping resistance.
 Install flow regulating valves on the outlet/water inlet piping.
 Fix the thermometers on the water inlets and outlets. This helps you know operating condition of the
chiller.
 There is a possibility that scales adhere to the plate type heat exchanger, depending on water quality;
to remove these scales, therefore, a periodical cleaning using cleaning agent is required. Accordingly,
install a gate valve in the water piping, and also install a piping connection for cleaning by cleaning agent
in the piping between this gate valve and chilling unit. (Refer to the illustration below.)
 For chiller cleaning and draining (water drain during long shutdown in winter seasons, and in
off-seasons) or the like, provide a "plug open to the atmosphere" and "drain plug" in the water piping inlet
and outlet. Also, in the case of rising in the water piping and in the most elevated place in which air is easy
to stay, always attach an "automatic air purging valve".
 Apart from the chiller inlet piping part, also attach a cleanable strainer near the pump piping inlet.
 Satisfactory cold and thermal insulation is required for water piping, and moisture proofing in the
outdoor part should also be applied thereto. If cold and thermal insulation is not sufficient, heat loss may
result, and furthermore, insufficient insulation may give rise to water piping damage caused by freezing in
the intense cold seasons.
 Where the operation is suspended in winter seasons and the operation is stopped in the nighttime, it
is necessary to prevent the water circuit or line from spontaneous freezing in the region where the outside
air (outdoor) temperature falls below zero degree, such as draining, circulation pump operation and

24
heating by a heater or the like. Since this freezing in the water circuit leads to damage on the plate type
heat exchanger, take adequate action according to the operating condition.

Installation diagram on water system of single module unit
Expansion water tank refill

W ater refill
Opening for chemical cleaning

Pressure gauge

Thermometer
Soft connector

Automatic air
Water pump

outlet valve
Gate valve

Gate valve

discharge
Water chiller unit

W ater
Filter
Cold(Hot) water inlet

W ater refill
3 Heater Water tank

W ater discharge

Water discharge
Cold(Hot) water outlet

Multiple module unit combinations: reference diagram of constant flow

rate of water system adjusting indoor temperature by adjusting end air
flow of air-conditioner.
Air discharge

Water refill
DN20
Fan coil

Fan coil

Fan coil

Fan coil

Fan coil
Full

DN20 Water discharge

Gate valve

Gate valve

Gate valve

Gate valve

Gate valve

3 3 3 3 3 3 3

1 2 1 2 1 2 1 2 1 2 1 2 1 2

25

Multiple module unit combinations: reference diagram of variable flow
rate water system adjusting indoor temperature by adjusting flow rate of
chilled water.
Air discharge

Water refill
DN20

Fan coil

Fan coil

Fan coil

Fan coil

Fan coil
Full

DN20 Water discharge

3 3 3 3 3 3 3

1 2 1 2 1 2 1 2 1 2 1 2 1 2

 Systematic diagram
Air discharge

Gate valve Water pressure gauge Electric 2-way valve Water refill
DN20

Non-return valve Thermometer Circular water pump Full

Soft connector Globe valve Differential pressure DN20 Water discharge

bypass valve

 Total dimension for the pipes of module combinations

Number of Units 1 2-3 4-5 6-10 11-16
Total Dimension for the Pipes of UAL230 (inch) ≥2 ≥3 ≥4 ≥5 ≥6
Total Dimension for the Pipes of UAL340 (inch) ≥2.5 ≥4 ≥5 ≥7 ≥9
Total Dimension for the Pipes of UAL450 (inch) ≥2.5 ≥5 ≥6 ≥9 ≥11
Total Dimension for the Pipes of UAL1000 (inch) ≥3 ≥6 ≥9 ≥11 ≥13
Note:
When cleaning the water system, close all the gate valves as shown in position ① and ②. Open the ③ valve
to bypass the units to avoid foreign matters in water system entering the plate of units, which may influence the
efficiency of heat exchange and life expectancy of the plate.

26

CAUTION
 Adopt the reversed return system in hydraulic system when two more units are combined. If the direct
return system is used, it may cause the unbalanced distribution of water flow which influences the
operation of units.
 The connection diameter is the same as piping. Use an item of same or larger diameter.
 Be sure to heat-insulate chilled water piping with insulation pipe cover.
 Water quality standards for chilled water specify recirculation water as a premise. (See water quality
standards) Once-Through system water could result in corrosion.
 Retain between 70 to 150% of the rated water volume in the system. An insufficient amount of water
can lead to performance loss due to scale deposits, or refrigerant gas leakage due to pitting, or can trip
the freeze-up protection thermo. Too much water can cause corrosion.
 Under full load operation, keep temperature differential between the water inlet and outlet to about
5ºC, by controlling flow rate with the chiller outlet gate valve.
 Check the flow direction if the unit is equipped with a flow switch.
 Do not aerate water in the re-circulation system as shown in the figure below. Aerating water causes
the dissolved oxygen to increase, and pollutants in the atmosphere condensed in the water cause
the water to become corrosive.

 Do not ground any other electrical equipment to the chiller's water piping. This may cause electrolytic
corrosion in some cases. Be sure to take rust prevention measures for piping buried in the ground.
 Note the flow speed of water in the system, the position of the expansion tank, and the position of the
air purge plug in the piping so that cavitation is not produced.
 If using a semi-sealed chilled water system with a heat storage tank, be sure to periodically change
the water (once every 1 to 2 years), and clean and inspect the bottom of the heat storage tank . A new
concrete heat storage tank will produce eluate, and it is not seldom happened for the pH of the heat
storage tank water to rise above 10. If the pH rises above the standard, the rate at which copper corrodes
increases, so the water should be changed before the pH rises that level. If a heat strage tank is used for
a prolonged period, springing and leaking of water could occur due to cracks in the heat strage tank.
Water leaks pose no serious problem for water quality control, but if seawater or dirty underground water
springs, it could cause an outbreak of microorganisms in the water of the heatstorage tank, thus
producing slime in the system, or could cause calcium carbonate to adhere.
 Use flexible tube on both the intake and delivery sides of the water chiller and water pump to prevent
vibrations in water pipes from being transmitted to the building.
 When attaching the supplied strainer, be sure to use the two wrenchs so that the threaded portion in
other than the union part does not rotate.
 This series model is all provided with a strainer. (One strainer is supplied in each system.)

27

Where concentrated piping works are conducted at job site
 Give care to the diameter of piping connected in the field. If the piping diameter is small, the water
volume is liable to deviate, and the freezing protective switch, such as DPS is actuated.
 Be sure to attach the supplied strainer. Interior heat exchanger clogging with dust or dirt
accelerates water volume deviation in each system, thereby causing malfunctions. Also, periodically
clean all strainers.

Example：UAL230DR5

supplied strainer

piping connected in the field

 Length of branch piping up to concentrated piping Make arrangements so that the length of
branch water piping does not exceed the equivalent length 5 m.
 The difference of equivalent length in water piping to each system should be 2 m max.
 The equivalent length (different from the actual length) significantly differs, depending on the method
of converging to the concentrated piping in particular.

Two units

28

Calculation of storage tank capacity
Model T （ ℃） Vmin.（L）
14 357
13 421
UAL230D(R)5 12 515
UAL230D5LC 11 662
10 927
9 1545
14 281
13 325
12 386
UAL340D(R)5
11 476
10 618
9 883
14 336
13 398
12 486
UAL450D(R)5
11 625
10 875
9 1458
14 610
13 701
12 822
UAL1000D5
11 996
10 1261
9 1720
14 600
13 709
12 867
UAL450D(R)5-FC
11 1115
10 1561
9 2601

Notes:
T: Setting entering water temperature;
V: Actual effective water capacity;
Vmin: Minimum effective water capacity.
 The effective water capacity consists of the water in main pipes, tanks, terminal units which are running and so
on in the water system. V should be no less than Vmin, otherwise units will alarm and shutdown frequently.
 If V is less than Vmin, please install a tank which capacity is "Vmin-V".
 For UAL230E(R)5，minimum effective water volume Vmin=240L.
 For UAL450E(R)5-F/R，minimum effective water volume Vmin=310L.

29

Calculating demonstration
As the water system is shown below, there is one UAL450DR5 unit and ten FCUs which are always
running. The internal capacity of each FCU is 1.5L.T=12℃, Size of main pipe=DN80, Total length of inlet
and outlet pipes=25m.
Calculation:
Capacity of inlet and outlet main pipes: 3.14*[(80/2)/1000] 2*25*103=125.5 L
Capacity of ten FCUs：10*1.5=15 L
According to the table above, Vmin is 486L. In other to avoid frequent start-stop or alarm of units, the
capacity of tank should be no less than Vmin-V=486-125.5-15=345.5 L.
Air discharge

Water refill
DN20
Fan coil

Fan coil

Fan coil

Fan coil

Fan coil
Full

DN20
Water discharge

Calculation of expansion tank capacity

Expansion tank is necessary in the air-conditioning water system.It is used to adapt the change
of water volume which is caused by water temperature so as to prevent the frost splitting of water system
in winter and instability of pump suction inlet pressure. It is also used to supply feed-water makeup and
exhaust spare air in the water system.
Calculation of expansion tank capacity
Vp=α*△t*Vs
Vp----The effective capacity of expansion tank (the water volume between signal pipe and overflow pipe),
m3
α---- Coefficient of cubical expansion of water, α =0.0006/℃
△t----Maximum water temperature difference, ℃
Vs----Capacity of water system (including the water in pipes and equipments), m3

30

Selection principle of circulating water pump
 Water flow of circulating water pump≥Nominal water flow of unit x 1.1
 Closed circulating water system: circulating water pump head≥(Friction loss+ local resistance
loss+water resistance of unit)x1.1
 Opend circulating water system: circulating water pump head≥( hydrostatic pressure+ Friction loss+
local resistance loss+water resistance of unit)x1.1
 When multiple units are equipped with a water pump, please refer to the circuit with the maximum
resistance, generally the farthest circuit.

Correction factor of glycol concentration

M in imu m a mb i en t
-1 -5 - 10 - 15
t emp e r at u re( ℃ )
G l yco l v o lu m e
9 18 26 33
co n c en t rat io n ( %)

M in imu m
le av in g w at er 2 0 -2 -4 -6 -8 - 10
t emp e r at u re( ℃ )
G l yco l v o lu m e
10 15 18 20 23 25 28
co n c en t rat io n ( %)

G l yco l v o lu m e
9 18 28 38 48
co n c en t rat io n ( %)
G l yco l ma s s
10 20 30 40 50
co n c en t rat io n ( %)
Co o l in g capa cit y
0. 9 91 0. 9 82 0. 9 72 0. 9 61 0. 9 46
co rr e ct i o n f a ct o r
Co o l in g p o w e r
0. 9 96 0. 9 92 0. 9 86 0. 9 76 0. 9 66
co rr e ct i o n f a ct o r
Wat e r f lo w
1. 0 13 1. 0 40 1. 0 74 1. 1 21 1. 1 78
co rr e ct i o n f a ct o r
W PD co rr e ct i o n
1. 0 70 1. 1 29 1. 1 81 1. 2 63 1. 3 08
f ac t o r
G l yco l f r e ez in g p o i n t
-4.1 -7.5 -14.1 -22.9 -33
（ ℃）

Notes:
 The use of glycol is to avoid freeze of water system when the leaving water temperature below 0℃.According to
the table above, please choose the suitable mass percent of glycol if needed. The principle of choosing glycol is the
ice point should be 5℃ lower than the leaving water temperature at least.
 When the unit runs for low ambient temperature cooling or low leaving water temperature, certain concentration
of glycol must be added into water system, and it must be test run by Daikin certificated professional, otherwise
there may be risk of heat exchanger freezing.

31
 Before Your Test run
Refrigerant Charge
The on-site staff shall charge the refrigerant according to the the refrigerant charging label after the
unit is installed. Refrigerant amount is charged according to Table B. The refrigerant must be charged in
liquid form.
After the refrigerant is fully charged, please sign the NAME OF COMPANY, NAME OF WORKER and
RECORD OF INSTALLATION DATE on the corresponding position of the refrigerant charging label.

32
 In order to protect the equipment, you should check the following before attempting test run.It would
also be a good idea to read "Safety" (pages 1 to 3) once more, before starting.
 Is the power supply properly connected?
The required power supply is as follows.

Model Power supply

UAL230DR5,UAL340DR5,UAL450DR5,
UAL450D(R)5-FC,UAL230D5(LC),UAL340D5, 3 phase, 380V±10%, 50Hz
UAL450D5,UAL230E(R)5,UAL1000D5, UAL450E(R)5-F
UAL230D5,UAL450D5 3 phase, 220V±10%, 60Hz
UAL230D5,UAL450D5
3 phase, 380V±10%, 60Hz
UAL230E(R)5,UAL450E(R)5-R
UAL230D5,UAL450D5 3 phase, 460V±10%, 60Hz
 Has the grounding been provided?
 Is the water pump interlock circuit (AXP) connected?
 The power supply should be turned "ON" 6 hours prior to operation to ensure the compressor
operates smoothly.
Is the water pump filled with water?
If not, open the water supply faucet and fill the water system with water, while purging air.
 To purge air, open the main body internal air purge plug and air purge cock on the load side heat
exchanger (fan coil unit, etc.). After making sure the system is filled with water, close the cock.
NOTES:For the main body internal air purge plug and water drain plug position, refer to the "Names of
Parts" in page 4.
 Before starting a test run, check to see if the piping works have been conducted properly, and if the
strainer, air purge valve, automatic feed water valve, expansion tank and cistern position are adequate in
particular.
 After completion of this water filling, first of all, ensure that no air is included inside the water system
through individual operation of the pump, and that the flow rate is satisfactory. Air inclusion and
insufficient flow rate may give rise to plate type heat exchanger freezing. For the flow rate, measure
the water pressure loss anterior and posterior to each chiller, and ensure that the flow rate is as designed.
 When an abnormality is present and no problem can be solved, stop test run to take proper action.
 Isn't the propeller fan making contact with obstructions?
 After completion of your test run, check the strainer on the chiller inlet piping: clean if stained.
 Control the starting/stopping of the pump by the pump output on PCB controller. Otherwise, the heat
exchanger may crack due to frost!
 Ensure the interlock contacts of the pump are voltage-free contacts. If there is voltage loop, the
control components of the units may be damaged.
 Ensure that the scope of application does not exceed the operating scope of the units.
 If the units are not used for a long time, drain away the water in plate heat exchanger and water pipes
and cut off the power. Otherwise, the power has to be cut off when the unit is in standby state.

33

After the units is running in stable state, check the following items:
UAL230DR5
UAL340DR5
UAL450DR5
UAL450D(R)5-FC UAL230D5 UAL230D5 UAL450E(R)5-F
Model UAL1000D5
UAL230D5(LC) UAL450D5 UAL450D5 UAL450E(R)5-R
UAL340D5
UAL450D5
UAL230E(R)5

Inspection
S/N Inspection Item Reference
Method

380V±10% 380V±10%
380V±10% 220V±10% 380V±10%
1 Voltage Voltmeter 460V±10% UAL450E(R)5-F:50Hz
50Hz 60Hz 50Hz
60Hz UAL450E(R)5-R:60Hz
Operating
2 current of single Galvanometer 13~25A 25~38A 25~55A
compressor
Operating
3 current of single Galvanometer 2~5A
fan
Water inlet
temperature in
4 Thermometer 10~25℃
cooling
operation
Water outlet
temperature in
5 Thermometer 5~20℃
cooling
operation
Water inlet
temperature in
6 Thermometer 25~50℃ -- 25~50℃ --
heating
operation
Water outlet
temperature in
7 Thermometer 30~55℃ -- 30~55℃ --
heating
operation
Temperature
8 difference of Thermometer 2~7℃
inlet/water outlet
Discharge
9 temperature of Thermometer 65~115℃
the compressor
Low-pressure in
10 cooling Baresthesiometer 6.5~10.0bar
operation
High-pressure in
11 cooling Baresthesiometer 22~41.5bar
operation
Low-pressure in
12 heating Baresthesiometer 1.4~10.0bar -- 1.4~10.0bar --
operation
High-pressure in
13 heating Baresthesiometer 22~37bar -- 22~37bar --
operation
Vibration and Listening
14 No abnormal vibration or operating sounds
operating sound or touching

Note:
The above references are only bases to judge whether the units onsite are in good condition. The maximum
and minimum reference values are for maximum and minimum conditions. If the units exceed the reference values
in stable operating, please consult the dealer.

34
 Operating Range

Operating Range
During operation, use the chiller within the following range.

Operation Limit
 During Cooling Operation
Type Model No. Water outlet Temperature Outdoor Air Temperature

Cooling only type UAL230D5 5℃ to 20℃ 5℃ to 48℃

Cooling only type UAL230D5LC 5℃ to 20℃ -15℃ to 48℃

Cooling only type UAL230E5 5℃ to 20℃ -15℃ to 52℃

Heat pump type UAL230ER5 5℃ to 20℃ -15℃ to 52℃

Cooling only type UAL450E5-F/R 5℃ to 20℃ -21℃ to 52℃

Heat pump type UAL230DR5 5℃ to 20℃ 5℃ to 48℃

Heat pump type UAL340/450DR5(-FC) 5℃ to 20℃ 5℃ to 48℃

Cooling only type UAL340/450D5(-FC)/1000D5 5℃ to 20℃ 5℃ to 48℃

 During Heating Operation (Only heat pump)

Type Model No. Water outlet Temperature Outdoor Air Temperature

Heat pump type UAL230DR5 30℃ to 55℃ - 15℃ to 30℃

Heat pump type UAL230ER5 30℃ to 55℃ - 26℃ to 30℃

Heat pump type UAL450ER5-F/R 30℃ to 55℃ - 30℃ to 43℃

Heat pump type UAL340/450DR5(-FC) 30℃ to 55℃ - 15℃ to 30℃

Notes:
 Make sure the chiller is within the recommended operating range within one hour after starting operation.
 The water volume should be set to 85% to 150% of the standard water volume as a guide.

35
Make sure operation conforms to the following restrictions
Item Contents
Power supply voltage Within±10% of rated voltage
Phase unbalance Within±2% of rated voltage
Power supply frequency Within±1% of rated
Chilled/hot water and outdoor air limit Working range given above
Pull-down duration Within one hour (at no load)
Chilled/hot water quality No soluble matters deteriorating copper and stainless steel shall be
included
Ambient air quality No soluble matters deteriorating copper and aluminum shall be included
Chilled/hot water flow-rate 0.5 to 2.0m/sec
Chilled/hot water pressure Less than 1MPa shall apply
Installing location Outdoors (Take a preventive action against snow and side wind, if
necessary.)
Water dripping out of machine Install drainage pipes and provide foundation with pit for various
drainage

Refer to technical reference materials for items not listed above.

36
 Specification Parameters
Model UAL230D5 UAL230DR5 UAL230D5LC UAL230E5 UAL230ER5
Rated cooling capacity kW 66.0 66.0 66.0 65 65
Rated heating capacity kW -- 67.0 -- -- 68
Rated cooling input power kW 20.3 20.6 20.3 21.8 21.8
Rated cooling current A 38.1 38.5 38.1 35.9 35.9
Rated heating input power kW -- 20.6 -- -- 21.6
Rated heating current A -- 37.8 -- -- 36.5
Performance factor - 3.25 3.20 3.25 2.98 2.98
Power supply - 380-415V/3N~/50Hz (UAL230E(R)5 can be used for 60Hz)
Type - Fully hermetic scroll compressor
Compressor
Quantity Piece 2
Type - Low-noise axial fan with large blades DC inverter fan
Quantity Piece 2
Fan Input
power kW 1.10x2 0.80x2（Max）
(high/low)
Type - High-efficiency plate heat exchanger
Water side Water flow
m3/h 11.3 11.3 11.3 11.2
heat for cooling
exchanger Water flow
m3/h -- 11.5 -- 11.7
for heating
Water resistance kPa 55
Recommended general
inlet/water outlet pipe inch RC 2
dimensions
Dimensions LxW xH mm 1990×840×1840
Runing weight kg 480 525 480 500
Net weight kg 471 515 471 491

37
 Model UAL340DR5 UAL340D5 UAL450DR5 UAL450D5 UAL1000D5
Rated cooling capacity kW 100 100 130 135 295
Rated heating capacity kW 100 -- 130 -- --
Rated cooling input power kW 29.6 29.6 39.0 40.3 92.2
Rated cooling current A 54.4 54.4 73.6 76.1 168.5
Rated heating input power kW 29.9 -- 39.8 -- --
Rated heating current A 55.8 -- 73.2 -- --
Performance factor - 3.38 3.38 3.33 3.35 3.20
Power supply - 380-415V/3N~/50Hz
Type - Fully hermetic scroll compressor
Compressor
Quantity Set 3 4
Type - Low-noise axial fan with large blades
Quantity Set 2 4
Fan
Input power
kW 1.4+1.25/1.16+0.7 1.40x2/1.16x2 1.5 x 4
(high/low)
Type - High-efficiency plate heat exchanger
Nominal water
Water side heat m³/h 17.2 22.4 23.2 50.7
flow( cooling )
exchanger
Nominal water
m³/h 17.2 -- 22.4 -- --
flow( heating)
Unit WPD kPa 28 48 48
Water pipe connection size inch RC 2-1/2 3 (Victaulic)

Unit Dimensions LxW xH mm 2100x1100x2300 2200x2230x2360

Operating weight kg 880 870 1000 950 1760

Unit weight kg 870 860 990 940 1730

38
 Model UAL450DR5-FC UAL450D5-FC UAL450E5-F/R UAL450ER5-F/R
Rated cooling capacity kW 130 130 130 130
Rated heating capacity kW 132 - - 140
Rated cooling input power kW 42.5 42.5 39.2 39.2
Rated cooling current A 76.0 76.0 64.0 64.0
Rated heating input power kW 42.3 - - 41.0
Rated heating current A 73.6 - - 68.9
Performance factor - 3.06 3.06 3.32 3.32
Power supply - 380-415V/3N~/50Hz (UAL450E(R)5-R used for 60Hz)
Type - Fully hermetic scroll compressor
Compressor
Quantity Set 2
Type - Low-noise axial fan with large blades
Fan Quantity Set 2
Input power kW 1.5 x 2 1.8 x 2（Max）
Type - High-efficiency plate heat exchanger
Nominal water
Water side heat m³/h 22.4 22.4 22.4 22.4
flow( cooling )
exchanger
Nominal water
m³/h 22.7 - 24.1 24.1
flow( heating)
Unit WPD kPa 36 45
Water pipe connection size inch RC 2-1/2

Unit Dimensions LxW xH mm 2100x1100x2300

Operating weight kg 875 875 938

Unit weight kg 865 865 928

39
 Model UAL230D5 UAL450D5
Rated cooling capacity kW 68.5 68.5 68.5 138 138 138
Rated cooling input power kW 21.3 21.3 21.3 42.9 42.9 42.9
Rated cooling current A 64.8 38.5 34.2 133.5 76.8 70.5
Performance parameter - 3.22 3.22 3.22 3.22 3.22 3.22
Power supply - 208-230V/3~ 380V/3~ 460V/3~ 208-230V/3~ 380V/3~ 460V/3~
Power frequency - 60Hz
Type - Fully hermetic scroll compressor
Compressor
Quantity Set 2 4
Type - Low-noise axial fan with large blades
Fan Quantity Set 2 2
Input power kW 0.9x2 2.1x2 2.1x2 2.25x2
Type - High-efficiency plate heat exchanger
Water side heat
Nominal water
exchanger m³/h 11.78 23.74
flow( cooling )
Unit WPD kPa 57 48
Water pipe connection size inch RC 2 RC 2-1/2

Unit Dimensions LxW xH mm 1990×840×1840 2100×1100×2300

Operating weight kg 474 928

Unit weight kg 464 918

Notes:
 Conditions for nominal cooling capacity: water outlet temp 7°C; water flow 0.172 m3/(h—kW); outdoor ambient
temp 35°C.
 Conditions for nominal heating capacity: water outlet temp 45°C; water flow 0.172 m3/(h—kW); wet bulb temp
6°C.
 Water resistance parameters in the table contain water pressure drop of the unit and pressure drop of the
supplied Y-type filter or Stainless steel filter.
 According to production design of manufacture, specification parameters in the table are subject to
change without prior notice.

40
 Operating Range of the Unit

Operating range of the unit

UAL230D(R)5

Notes:
50  The dashed area only applies to
45 the UAL230D(R)5.
40  Note: Ensure that the water flow
Ambient temperature ℃

35 is within the specified range. If

30 Cooling the water flow is too small, scale
25 adsorption will occur so as to reduce
20 unit performance, cause frost
15 Heating protection sensor action, or cause
5 rust points and refrigerant leakage. If
0
the water flow is too large, the unit

-5
may be corroded due to water impact.

-10

5 10 15 20 25 30 35 40 45 50 55 60 65
Water outlet temperature ℃

UAL340/450D(R)5

50 Notes：
45  The grey area at the lower left
corner of refrigeration operation
40
scope: the ambient temperature is
35 less than 15 ℃, and water outlet
30 temperature is less than 7 ℃, and the
Ambient temperature ℃

unit will be under restrictions in this

25 Cooling
area during the running.
20  Note: Ensure that the water flow
15 is within the specified range. If
the water flow is too small, scale
10 Heating
adsorption will occur so as to reduce
5 unit performance, cause frost
0 protection sensor action, or cause
-5
rust points and refrigerant leakage. If
the water flow is too large, the unit
-10
may be corroded due to water impact.
-15

5 10 15 20 25 30 35 40 45 50 55 60 65
Water outlet temperature ℃

41
 UAL230E(R)5 UAL450E(R)5-F/R

55
52
55 50
52
50 45
43
45 40

40 35

35 30

A m bient tem perature ℃

30 25 Cooling
A m bient tem perature ℃

25 Cooling 20

20 15

15 10 Heating
10 Heating 5

5 0

0 -5

-5 -10

-10 -15

-15 -20

-20 -25

-25 -26 -30

52
5 10 15 20 25 30 35 40 45 50 55 60 5 10 15 20 25 30 35 40 45 50 55 60
Water outlet temperature ℃ Water outlet temperature ℃

UAL230D5LC UAL450D(R)5-FC UAL1000D5

48 48 48
45 45 45
43
40 40 40

35 35 35

30 30 30
Ambient temperature ℃

Ambient temperature ℃

Ambient temperature ℃

25 Cooling 25 Cooling 25 Cooling

20 20 20

15 15 15
Heating
10 10 10

5 5 5

0 0 0

-5 -5 -5

-10 -10 -10

-15 -15 -15

7
5 10 15 20 25 5 10 15 20 25 30 35 40 45 50 55 5 10 15 20 25
Water outlet temperature ℃ Water outlet temperature ℃ Water outlet temperature ℃

42

Water Pressure Drop of the Unit
Curves of Water Pressure Drop of the Unit

①
③
⑤

Curve ①: UAL230D5/ UAL230D5LC/ UAL230DR5/ UAL230E5/ UAL230ER5

Curve ②: UAL340D5/ UAL340DR5

Curve ③: UAL450D5/ UAL450DR5/UAL450E(R)5-F/R

Curve ④: UAL450D5-FC/ UAL450DR5-FC

Curve ⑤: UAL1000D5

Notes:
 Water pressure drop of the unit is tested by the plate heat exchanger and the supplied Y-type filter or stainless
steel filter.
 Water resistance of plate heat exchanger and filter is tested under condition of clean water; it may be
inconsistent with that shown in the diagram due to the water quality on site.

43

Dimensions
 Air-cooled Chilled Water/Heat Hump Unit
UAL230E(R)5/D5LC/D(R)5

Mounting hole of anchor bolt 14-14x20

Magnified view of mounting

hole of anchor bolt 14x20

Water inlet of
air-conditioner Rc2

Water outlet of
air-conditioner Rc2

Unit: mm

Model A(mm) B(mm)

UAL230DR5/D5/D5LC
140 476
UAL230E(R)5

44
UAL340/450D(R)5
UAL450D(R)5-FC
UAL450E(R)5-F/R
Mounting hole of anchor bolt 4-14×20

Rc 2 -1/2
Water inlet
Rc 2 -1/2
Water outlet

Wire connection port

Unit: mm
Model A(mm) B(mm) C(mm) D(mm) H(mm)
UAL340 D(R)5 164 369 587 380 2300
UAL450 D(R)5 160 390 608 380 2300
UAL450 D(R)5-FC 174 390 608 360 2300
UAL450E(R)5-F/R 160 390 608 380 2300

45
UAL1000D5
270 630 400 630 270

457

2200
2230
1286
457

Mounting hole of anchor bolt 12-14*20

270 630 400 630 270

2360
45°

263
45 °

Water filter
673
410

182

Water inlet Weak current connection port

Water outlet
15 DN80 Clamp type joint 15 15 Wire connection port 15
2230 (292) 2200
780 220 200 220 780

(488)

89
(292)

114

370
This terminal is connected
to the water inlet of the unit

：
Notes：
The stainless steel water filter attached to the unit must be installed on the water inlet pipe of the unit (see the figure above for
the direction). Please pay attention to the direction of the water flow when installing, and do not install it backwards.

46
DAIKIN INDUSTRIES, LTD.
Head office:
Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,
Kita-ku, Osaka, 530-8323 Japan

UAL2204-A16 M08014300061 (1204) FS

47