SMC Networks HRL300-A*-20 Series, HRL Series, HRL200-A*-20 Series, HRL100-A*-20 Series Operation Manual

HRX-OM-W060

Original Instructions

Thermo Chiller

HRL Series

HRL100-A-20
HRL200-A-20
HRL300-A-20

Operation Manual

Installation ･ Operation

Keep this manual available whenever necessary

© 2019 SMC CORPORATION All Rights Reserved

Note: This manual is subject to possible change without prior notice.

To the users

Thank you for purchasing SMC’s Thermo chiller (hereinafter referred to as the “product”).

For safety and long life of the product, be sure to read this operation manual (hereinafter referred to as the

“manual”) and clearly understand the contents.

● Be sure to read and follow all instructions noted with “Warning” or “Caution” in this manual.

● This manual is intended to explain the installation and operation of the product. Only people who

understand the basic operation of the product through this manual or who perform installation and
operation of or have basic knowledge about industrial machines are allowed to work on the product.

● This manual and other documents attached to the product do not constitute a contract, and will not
affect any existing agreements or commitments.

● It is strictly prohibited to copy this manual entirely or partially for the use by a third party without prior

permission from SMC.

HRX-OM-W060

Contents

Contents

Chapter 1 Safety Instructions ........................................................... 1-1

1.1 Before Using the Product ....................................................................................... 1-1

1.2 Reading the Manual ................................................................................................ 1-1

1.3 Hazards .................................................................................................................... 1-2

1.3.1 Level of hazards ................................................................................................................... 1-2

1.3.2 Definition of “Serious injury” and “Minor injury” .................................................................... 1-2

1.4 Product Label .......................................................................................................... 1-3

1.5 Safety Measures ...................................................................................................... 1-4

1.5.1 Safety instructions for use .................................................................................................... 1-4

1.5.2 Personal protective equipment ............................................................................................ 1-4

1.6 Emergency Measures.............................................................................................. 1-5

1.7 Waste Disposal ........................................................................................................ 1-5

1.7.1 Disposal of refrigerant and compressor oil .......................................................................... 1-5

1.7.2 Disposal of product .............................................................................................................. 1-5

1.8 Safety Data Sheet（SDS） ......................................................................................... 1-6

Chapter 2 Name and Function of Parts ............................................ 2-1

2.1 Model Number of Product ....................................................................................... 2-1

2.2 Name and Function of Parts ................................................................................... 2-2

2.2.1 HRL-A-20 (Air cooled type) ........................................................................................... 2-2

2.3 Function of Parts ..................................................................................................... 2-4

Chapter 3 Transport and Setting Up ................................................. 3-1

3.1 Transport.................................................................................................................. 3-1

3.1.1 Transportation using forklift and hanging ............................................................................. 3-2

3.1.2 Transportation using casters ................................................................................................ 3-3

3.2 Installation ............................................................................................................... 3-4

3.2.1 Environment ......................................................................................................................... 3-4

3.2.2 Location ................................................................................................................................ 3-6

3.2.3 Installation and maintenance space ..................................................................................... 3-7

3.3 Installation ............................................................................................................... 3-8

3.3.1 Installation ............................................................................................................................ 3-8

3.3.2 Electrical wiring ..................................................................................................................3-10

3.3.3 Preparation and wiring of power supply cable ...................................................................3-12

3.3.4 Contact input/output communicatin wiring .........................................................................3-17

3.3.5 Wiring of Run/Stop signal input ..........................................................................................3-21

3.3.6 Wiring of contact output signal ...........................................................................................3-23

3.3.7 Wiring of analog output signal ............................................................................................3-24

3.3.8 RS-485 communication wiring ...........................................................................................3-24

3.3.9 RS-232C communication wiring .........................................................................................3-26

3.4 Piping ..................................................................................................................... 3-28

■ How to connect to the drain port.................................................................................................3-34

3.5 Circulating Fluid Supply ....................................................................................... 3-36

HRL Series

HRX-OM-W060

Contents

Chapter 4 Starting the Product ......................................................... 4-1

4.1 Before Starting ......................................................................................................... 4-1

4.2 Preparation for Start ................................................................................................ 4-2

4.2.1 Power supply ....................................................................................................................... 4-2

4.2.2 Operation screen (home screen) ......................................................................................... 4-3

4.3 Preparation of Circulating Fluid Supply to User's Equipment .............................. 4-4

4.4 Operation Start and Stop ......................................................................................... 4-6

4.4.1 Setting of circulating fluid temperature ................................................................................ 4-6

4.4.2 Setting of pump operation mode ......................................................................................... 4-7

4.4.3 Starting the Product ............................................................................................................. 4-7

4.4.4 Stopping the product ........................................................................................................... 4-8

4.5 Check Items during Startup .................................................................................... 4-9

4.6 Adjustment of Circulating Fluid Flow Rate ............................................................ 4-9

Chapter 5 Display and Setting of Various Functions ...................... 5-1

5.1 Basic Operation ....................................................................................................... 5-1

5.1.1 Touch panel ......................................................................................................................... 5-1

5.1.2 Basic operating instructions................................................................................................. 5-2

5.2 Flow Chart of Operation Screen.............................................................................. 5-4

5.2.1 Flow Chart of Operation Screen .......................................................................................... 5-4

5.3 List of Functions ...................................................................................................... 5-7

5.4 Description of Screen .............................................................................................. 5-8

5.4.1 Home screen ....................................................................................................................... 5-8

・Menu key .......................................................................................................................................... 5-9

・Display and setting of date and time ................................................................................................ 5-9

・Operating condition display .............................................................................................................. 5-9

・Current circulating fluid temperature PV ........................................................................................ 5-10

・Circulating fluid set temperature SP .............................................................................................. 5-10

・Circulating fluid discharge pressure Press PV ............................................................................... 5-11

・Circulating fluid flow rate Flow PV.................................................................................................. 5-11

・Circulating fluid flow rate DI PV...................................................................................................... 5-11

・Independent pump operation Pump ............................................................................................... 5-12

・Operation mode MODE .................................................................................................................. 5-12

・RUN/STOP display ......................................................................................................................... 5-12

・Run/stop operation ......................................................................................................................... 5-13

5.4.2 Menu .................................................................................................................................. 5-14

5.4.3 Status screen ..................................................................................................................... 5-14

5.4.4 Information screen ............................................................................................................. 5-16

・Alarm reset ..................................................................................................................................... 5-17

・Alarm name .................................................................................................................................... 5-17

・Alarm log record ............................................................................................................................. 5-18

・Display of alarm/maintenance reminder ........................................................................................ 5-19

5.4.5 Check operation time screen and maintenance reminder ................................................. 5-20

・Setting the usage time of DI filter ................................................................................................... 5-21

HRL Series

HRX-OM-W060

Contents

・Setting of the usage time of dustproof filter ....................................................................................5-21

5.4.6 Software version screen .....................................................................................................5-22

5.4.7 CH1 setting screen .............................................................................................................5-22

・Temperature rise/drop alarm (AL10/AL11)......................................................................................5-23

・TEMP READY alarm (AL12) of TEMP READY function .................................................................5-25

・Offset (TEMP OFFSET) function ....................................................................................................5-28

・Pump operation mode ....................................................................................................................5-31

・Discharge pressure alarm (AL18/AL19/AL20) ................................................................................5-32

5.4.8 CH2 setting screen .............................................................................................................5-34

・Temperature rise/drop alarm (AL14/AL15) setting ..........................................................................5-35

・TEMP READY alarm (AL16) of TEMP READY function .................................................................5-36

・Offset (TEMP OFFSET) function ....................................................................................................5-38

・Pump operation mode ....................................................................................................................5-39

・Discharge pressure alarm (AL21/AL23/AL24/AL26) ......................................................................5-40

・Electric conductivity and alarm setting (AL27) ................................................................................5-41

5.4.9 Function setting screen ......................................................................................................5-43

・Key-lock, startup operating method, anti-freezing and warming-up ...............................................5-44

・Continuing pump operation .............................................................................................................5-45

・Ambient temperature alarm (AL35) and maintenance alarm (AL36) ..............................................5-48

・TEMP OUT signal ...........................................................................................................................5-49

・Data reset .......................................................................................................................................5-50

5.4.10 Communication setting screen ...........................................................................................5-51

・Setting for communication error (AL34)/contact input signal detection (AL30 and AL31) ..............5-52

・Serial communication setting ..........................................................................................................5-53

・Setting of analog output signal .......................................................................................................5-55

・Setting of contact input signal form.................................................................................................5-55

・Setting of contact output signal 1 to 3 ............................................................................................5-57

・Setting of contact output signal 4 to 6 ............................................................................................5-57

5.4.11 Temperature waveform screen...........................................................................................5-62

Chapter 6 Alarm Notification and Troubleshooting ........................ 6-1

6.1 Alarm Notification ................................................................................................... 6-1

6.2 Operation of this product when an alarm occurs ................................................. 6-1

6.3 Troubleshooting ...................................................................................................... 6-2

6.3.1 Alarm contents, causes, and troubleshooting ...................................................................... 6-2

6.4 Other Errors ............................................................................................................. 6-5

Chapter 7 Control, Inspection and Cleaning ................................... 7-1

7.1 Quality Control of Circulating Fluid and Facility Water ................................ ........ 7-1

7.2 Inspection and Cleaning ......................................................................................... 7-2

7.2.1 Daily check ........................................................................................................................... 7-2

7.2.2 Monthly check ...................................................................................................................... 7-3

7.2.3 Inspection every 3 months ................................................................................................... 7-4

7.3 Operation Stop for an Extended Period of Time ................................................... 7-5

HRL Series

HRX-OM-W060

Contents

7.3.1 Discharge of the circulating fluid ......................................................................................... 7-5

7.4 Replacement of consumables ................................................................................. 7-7

7.4.1 Replacing Particle Filters ..................................................................................................... 7-7

7.4.2 Replacing the DI filter .......................................................................................................... 7-8

7.4.3 Consumables ..................................................................................................................... 7-10

Chapter 8 Documents ....................................................................... 8-1

8.1 Specifications .......................................................................................................... 8-1

8.1.1 HRL100/200/300-A-20 ....................................................................................................... 8-1

8.1.2 Refrigerant with GWP reference.......................................................................................... 8-2

8.1.3 Communication specifications ............................................................................................. 8-2

8.2 Dimensions .............................................................................................................. 8-3

8.2.1 HRL100-A-20 ..................................................................................................................... 8-3

8.2.2 HRL200-A-20 ..................................................................................................................... 8-4

8.2.3 HRL300-A-20 ..................................................................................................................... 8-5

8.3 Flow Diagram ........................................................................................................... 8-6

8.3.1 Flow Diagram ...................................................................................................................... 8-6

8.4 Cooling Capacity ...................................................................................................... 8-7

8.4.1 HRL100‐A‐20 CH1 .......................................................................................................... 8-7

8.4.2 HRL200‐A‐20 CH1 .......................................................................................................... 8-7

8.4.3 HRL300‐A‐20 CH1 .......................................................................................................... 8-8

8.5 Pump Capacity ......................................................................................................... 8-9

8.5.1 HRL100‐A‐20 CH1 .......................................................................................................... 8-9

8.5.2 HRL200‐A‐20 CH1 .......................................................................................................... 8-9

8.5.3 HRL300‐A‐20 CH1 ........................................................................................................ 8-10

8.5.4 HRL-A-20 CH2 .......................................................................................................... 8-10

8.6 Types of Hazard Labels ......................................................................................... 8-11

8.6.1 Positions of danger warning label ..................................................................................... 8-12

8.7 Standards ............................................................................................................... 8-13

8.8 Daily Check Sheetheck Sheet ............................................................................... 8-14

Chapter 9 Product Warranty ............................................................. 9-1

HRL Series

1-1

Chapter 1 Safety Instructions

Before using the product, be sure to read and understand all the
important actions highlighted in this manual.

This sign indicates actions that must be followed.

This sign indicates prohibited actions.

1.1 Before Using the Product

 This chapter is intended to specifically describe the safety related

issues for handling the product. Read this before handling the product.

 The product is a cooling device using circulating fluid. SMC does not

take any responsibility for any problems that may arise from using the
product for other purposes.

 This product is not designed for a clean room. It generates dust from

the internal components such as pump and fan motor.

 The product is operated at high voltage and contains components

which become hot and rotate. If a component needs to be replaced or
repaired, contact a specialized vendor for parts and service.

HRX-OM-W060

Chapter 1 Safety Instructions

 All personnel who work with or around the product should read and

understand the safety related information in this manual carefully
before starting work.

 The safety manager is responsible for strictly observing safety

standards, but responsibility in respect to safety standards during daily
work resides with each individual operator and maintenance
personnel.

 Do not use the materials that rust or corrode for the circulating fluid and

facility water circuits. Using the materials that tend to rust or corrode
may cause clogs or/and leakages of the circulating fluid and facility
water circuits. In case of using these kind of materials, consider and
carry out some prevention against the rusting or corrosion on the
customer side.

 This manual must be kept available to operators whenever necessary.

1.2 Reading the Manual

This manual contains symbols to help identify important actions when
installing, operating or maintaining the product.

HRL Series 1.1 Before Using the Product

HRX-OM-W060

1-2

“WARNING”: Hazard that MAY cause serious personal injury or death during

operation.

“DANGER”: Hazard that WILL cause serious personal injury or death during

operation.

“CAUTION”: Hazard that MAY cause minor personal injury.

“CAUTION without exclamation symbol”: Hazard that MAY cause damage or failure

of the product, facility, devices, etc.

Chapter 1 Safety Instructions

1.3 Hazards

1.3.1 Level of hazards

The instructions given in this manual aim to assure the safe and correct
operation of the product, and to prevent injury of operators or damage to the
product. These instructions are grouped into three categories, Danger,
Warning and Caution, which indicate the level of hazard, damage and also
the degree of emergency. All safety critical information should be carefully
observed at all times.

“DANGER”, “WARNING” and “CAUTION” signs are in order according to

severity (DANGER> WARNING> CAUTION).

1.3.2 Definition of “Serious injury” and “Minor injury”

 “Serious injury”

This term describes injuries that result in after effects including loss of
eyesight, burns, electric shock, fracture, poisoning, etc. and requires
long-term treatment or hospitalization.

 “Minor injury”

This term describes injuries that do not need long-term treatment or
hospitalization. (Others excluded from “Serious injury”.)

1.3 Hazards

HRL Series

1-3

1.4 Product Label

X

R

001

Year

Symbol

Remarks

Month

Symbol

Remarks

Serial no.

2019

X

Repeated from
A to Z in
alphabetical
order

1

O

Repeated from
O to Z in alphabetical
order, with O for
January and Z for
December

－

2020 y 2 P 2021 Z 3

Q

↓ ↓ ↓

↓

* (An example of "HRL200-A-20" model.)

"3~" stands for "3 inter phase".
(IEC 60417-5032-1)

Model number

Serial number

Kind and amount

of refrigerant

Information about the product, such as Serial No. and Model No. can be
found on the product label. This information is needed when contacting an
SMC sales distributor.

HRX-OM-W060

Chapter 1 Safety Instructions

How to see the serial number X R 001 （April 2019）

Fig. 1-1 Position of the product label

HRL Series 1.4 Product Label

HRX-OM-W060

1-4

Follow the instructions below when using the product. Failure to
follow the instructions may cause an accident and injury.

Always use safety shoes, gloves and head protection when
transporting, installing or uninstalling the product.

Always use safety shoes, gloves, mask, apron and eye protection
when handling the circulating fluid.

Always use safety shoes and gloves when operating the product.

Chapter 1 Safety Instructions

1.5 Safety Measures

1.5.1 Safety instructions for use

 Read and understand this manual carefully before using the product.
 Before starting maintenance of the product, be sure to lock out and tag out

the breaker of the user's power supply.

 If operating the product during maintenance, be sure to inform all workers

nearby.

 Use only the correct tools and procedure when installing or maintaining the

product.

 Use personal protective equipment where specified (“1.5.2 Personal

protective equipment”).

 Check all parts and screws are fitted correctly and securely after

maintenance.

 Avoid working in a drunken or sick condition, which might cause an

accident.

 Do not remove the panels except for the cases permitted in this manual.
 Do not remove the panels during operation.

Do not handle this product by any means other than specified in this
Operation Manual; this can result in damage to the product or fire.

1.5.2 Personal protective equipment

This manual specifies personal protective equipment for each work.

 Transport, Installing and Uninstalling

 Handling of circulating fluid

 Operation

1.5 Safety Measures

HRL Series

1-5

1.6 Emergency Measures

Even when the power supply swtich is turned off, some of the internal

circuits are still energized, unless the user’s power supply is shut off.

Be sure to shut off the breaker of the user’s power supply.

 Only maintenance personnel or qualified people are allowed to open

the cover panels of the product.

 Do not mix the compressor oil with domestic waste for disposal. Also,

the disposal of the waste must only be conducted by specific
facilities that are permitted for that purpose.

 Comply with the laws and regulations in each country for the disposal

of refrigerant and compressor oil.

 The release of refrigerant in to the atmosphere is banned by law.

Recover it with specific equipment and dispose of it correctly.

 Only people who have sufficient knowledge and experience about the

product and its accessories are allowed to recover the refrigerant and
compressor oil.

When emergency conditions such as natural disaster, fire, earthquake and

injury occur, shut off the breaker of the user’s power supply that supplies

power to the product.

1.7 Waste Disposal

1.7.1 Disposal of refrigerant and compressor oil

The product uses hydro fluorocarbon type refrigerant (HFC) and compressor
oil. Comply with the laws and regulations in each country for the disposal of
refrigerant and compressor oil. The type and quantity of refrigerant is
described on the “1.4 Product Label”.

HRX-OM-W060

Chapter 1 Safety Instructions

If these fluids need to be recovered, read and understand the instructions
below carefully. If there is any unclear point, contact an SMC's sales
distributor.

1.7.2 Disposal of product

The disposal of the product must be handled by a specialized industrial waste
disposal agency in accordance with local laws and regulations.

HRL Series 1.6 Emergency Measures

HRX-OM-W060

1-6

Chapter 1 Safety Instructions

1.8 Safety Data Sheet（SDS）

If the safety data sheets of chemicals used in this product are needed,
contact an SMC's sales distributor.

Any chemicals used by the user must be accompanied by an SDS.

1.8 Safety Data Sheet（SDS

）

HRL Series

HRX-OM-W060

2-1

HRL

④Power supply

- -

A

20

20

AC200V/200-230V(50/60Hz)

3phase

①Cooling capacity

CH1

200 19 kw

100 9 kw

③Piping thread type

Nil Rc

F G (Rc-G thread adapter set is included)

N NPT (Rc-NPT thread adapter set is included)

②Cooling method

A Air-cooled refrigeration

300 26 kw

CH2

1 kw

1 kw

1 kw

Chapter 2 Name and Function of Parts

Chapter 2 Name and Function of Parts

2.1 Model Number of Product

The product can be ordered with the model number configured as shown
below.
The product needs to be handled in different ways depending on the part
number. Refer to “1.4 Product Label" and check the part number of the
product.

HRL Series 2.1 Model Number of Product

Fig. 2-1 Product model number

HRX-OM-W060

2-2

Chapter 2 Name and Function of Parts

2.2 Name and Function of Parts

2.2.1 HRL-A-20 (Air cooled type)

Fig. 2-2 Names of the parts (This drawing shows “HRL200-A-20”.)

2.2 Name and Function of Parts

HRL Series

2-3

Table 2.2-1 Accessory list

(1)

Operation Manual

2 pcs.

(English 1 pc. /Japanese 1 pc.)

(2)

Particle filter set (for CH1) 1

1 set

(3)

Particle filter set (for CH2) 1

1 set

(4)

For HRL-AF-
G thread adapter set

1 set

(For drain port)

For HRL-AN-
NPT thread adapter set

1 set

(5)

Anchor brackets 2

2 pcs.

HRX-OM-W060

Chapter 2 Name and Function of Parts

1 When “ F ” or “ N ” piping thread type is selected, the particle filter connection is “ G thread ” or “ NPT thread ”.
2 The anchor brackets are used for fixation with the skid when this product is packed. The anchor bolts are not

attached. The bolts (M8) used for fixing to the skid are not anchor bolts. Refer to "3.3.1 Installation" when using
anchor bolt fixing bracket.

HRL Series 2.2 Name and Function of Parts

HRX-OM-W060

2-4

Name

Function

Touch panel

Runs and stops the product and performs settings such as the
circulating fluid temperature.

Fluid level gauge

Indicates the circulating fluid level of the tank. Confirm the level is
between HIGH and LOW. For details, refer to “3.5 Circulating Fluid Supply”.

Product label

Shows the product information such as model number and serial
number.For details, refer to ‘’1.4 Product Label’.

Circulating fluid

outlet port (CH1)

The circulating fluid flows out from the outlet port.
For Laser source.

Circulating fluid

outlet port (CH2)

The circulating fluid flows out from the outlet port.
For optical systems.

Circulating fluid

return port (CH1)

The circulating fluid returns to the return port.

Circulating fluid

return port (CH2)

The circulating fluid returns to the return port.

Tank drain port (CH1)

This drain port to drain the circulating fluid out of the tank.

Tank drain port (CH2)

Dust-proof filter

Inserted to prevent that the dust and contamination are clung
on the air cooled condensers directly. Clean the filter

periodically. For details, refer to “7.2.2 Monthly check”.

Power cable entry

Insert the power cable to the power cable entry and connect it

to the power terminal. For details, refer to “3.3.2 Electrical wiring”

and “3.3.3 Preparation and wiring of power supply cable”.

Power terminal

Signal cable entry

Insert the signal cable to the signal cable entry and connect it to
the signal connectors. For details, refer to “3.3.5 Wiring of Run/Stop signal
input”, “3.3.6 Wiring of contact output signal”, “3.3.7 Wiring of analog output
signal”,“3.3.8 RS-485 communication wiring”,
“3.3.9 RS-232C communication wiring” or the Operation
Manual Communication Function.

Signal connecors

Earth leakage breaker

/ Breaker handle

Shuts off the power supply to the internal equipment of the product.
(Parts energized remained in the product.)

Refer to “3.3.2 Electrical wiring” for the earth leakage breaker.

Water fill port

Supply circulating fluid to the tank.

Chapter 2 Name and Function of Parts

2.3 Function of Parts

The function of parts is as follows.

Table 2.3-1 Function of parts

2.3 Function of Parts

HRL Series

Chapter 3 Transport and Setting Up

3-1

 Only persons who have sufficient knowledge and experience about

the product and system are allowed to transport and set up the
product.

 Especially pay attention to personal safety.

 Drain the residual fluid from the piping as much as possible to prevent

any spillage.

Never lay the product on its side.
The compressor oil will leak in to the refrigerant piping, which may
cause early failure of the compressor.

 When the product is carried by using a forklift, make sure that the

fork does not damage the cover panel or piping port.

 Be sure to use all the four eye bolts when slinging the product.
 The slant angle of each rope should be 60 degrees or less.

 When moving the product by a forklift, insert the fork into the right

positions referring to 3.1.1 Transportation using forklift and hanging­Moving by forklift and slinging should be done by persons who have
the licenses.

Chapter 3 Transport and Setting Up

3.1 Transport

The product is heavy and has potential danger at transport. Also, to prevent
damage and breakage of the product, be sure to follow the instructions
shown below for transport.

HRX-OM-W060

HRL Series 3.1 Transport

HRX-OM-W060

3-2

Model

Weight kg

HRL100-A-20

Approx.222

HRL200-A-20

Approx.251

HRL300-A-20

Approx.315

Fork inserting position

Position to hang

60°or less

Fork inserting position

This is a heavy product. (Refer to Table 3.1-1 Weight of the product)
Moving by forklift and slinging should be done by persons who have
the licenses.

Chapter 3 Transport and Setting Up

3.1.1 Transportation using forklift and hanging

Fig. 3-1 Fork inserting and hanging position (This drawing shows “HRL200-A-20”.)

Table 3.1-1 Weight of the product

3.1 Transport

HRL Series

HRX-OM-W060

3-3

Raise the adjuster
foot.

Swivel
caster

Each swivel caster can
rotate 360 degrees freely.

Raise the adjuster feet and push the corners of the product when
moving the product using the casters.
Do not hold the piping connections or handles of the panels when
moving by casters, or it may cause damage to the product..

This is a heavy product. (Refer to Table 3.1-1 Weight of the product).
Moving the product by casters should be done by 2 persons or more.

Chapter 3 Transport and Setting Up

3.1.2 Transportation using casters

Fig. 3-2 Transportation using casters

HRL Series 3.1 Transport

HRX-OM-W060

3-4

 Do not set up the product in places possibly exposed to leakage of

flammable gas. Should any flammable gas stay around the product,
the product may cause a fire.

 Keep the product upright on a rigid and flat floor which can resist the

weight of the product, and take measures to prevent the product from
tipping over. Improper installation may cause water leakage, tipping,
damage of the product or injure the operator.

 Keep the ambient temperature of the product between 2 to 45oC.

Operation out of this ambient temperature range may cause a
malfunction of the product. Operating the product in an environment
temperature of 45 oC may reduce the heat discharging efficiency of
the heat exchanger and the safety device may function, resulting in
the product operation stoppage.

 The installer/end user is responsible for carrying

out an acoustic noise risk assessment on the equipment after
installation and taking appropriate measures as required.

Chapter 3 Transport and Setting Up

3.2 Installation

3.2.1 Environment

The product must not be operated, installed, stored or transported in the
following conditions. Potential malfunction or damage to the product may
occur if these instructions are disregarded.

This product is not designed for clean room usage. The pump and ventilating
fan inside the product generate particles.

● Location that is outside.

● Location that is exposed to steam, salt water or oil.

● Location that is exposed to dust or powder material.

● Location that is exposed to corrosive gas, organic solvent, chemical solution, or

flammable gas. (The product is not explosion-proof.)

● Location where the ambient temperature is out of the following range:

During transportation or storage: -15 to 50°C (No water or circulating fluid in the

piping.)

During operation : 2 to 45°C

● Location where condensation forms on the inside electrical parts.

● Location that is exposed to direct sunlight or heat radiation

● Location that is near heat sources and poor in ventilation.

● Location that is subjected to abrupt changes in temperature.

● Location that is subjected to strong electromagnetic noise (intense electric field,

intense magnetic field, or surges).

● Location that is subjected to static electricity, or conditions where static electricity can

discharge to the product.

● Location that is subjected to strong high frequencies raditation.

3.2 Installation

● Location that is subjected to potential lightening srtike.

● Location at altitude of 3000m or higher (except during product storage and transport).

Refer to below for details.

● Location where the product is affected by strong vibrations or impacts.

● Condition that applies external force or weight causing the product to be damaged.

● Location without adequate space for maintenance as required.

HRL Series

Chapter 3 Transport and Setting Up

3-5

Altitude [m]

1. Max. ambient
temp. [oC]

2. Cooling capacity

correction coefficient

Less than 1000m

45

1.00

1000 m or more - Less than 1500 m

42

0.85

1500m or more - Less than 2000m

38

0.80

2000m or more - Less than 2500m

35

0.75

2500m or more - Less than 3000m

32

0.70

 Thermo-chiller installation in high altitude of 1000 meters or more

Because of lower air density, the heat radiation efficiencies of the devices in
the product will be lower in the location at altitude of 1000m or higher. For this
reason, the maximum ambient temperature for the thermo-chiller operation
and the cooling capacity will be reduced.

For product installation at a place of high altitude of 1000 meters or more,
select a thermo-chiller of the applicable capacity referring to the table below.

1. Max. ambient temp.: Use the product in lower ambient temperature
than the described value at each altitude.

2. Cooling capacity correction coefficient: Coefficient to calculate the cooling
capacity at each altitude

For the product operation at an altitude of 1800 meters, the cooling capacity
at an altitude of 1800 meters = “8.4 Cooling Capacity” x 0.8.

HRX-OM-W060

HRL Series 3.2 Installation

HRX-OM-W060

3-6

Model

Heat

radiation

(kW)

Required ventilation amount (m3/min)

Differential temp. of

3 oC between inside and

outside of installation

area

Differential temp. of

6 oC between inside and

outside of installation

area

HRL100-A-20

Approx.18

305

155

HRL200-A-20

Approx.35

590

295

HRL300-A-20

Approx.45

760

380

 Do not install in a location which can be subjected to any of the

conditions in “3.2.1 Environment”.

Radiates heat from the air vent of the cooling fan.

If the product is operated with insufficient air ventilation the internal
temperature can exceed 45oC, which can cause and affect the
performance and life of the product. To prevent this ensure that
suitable ventilation is available (see below).

Chapter 3 Transport and Setting Up

3.2.2 Location

 nstallation of multiple products

Keep sufficient space between products so that the air vented from one product will not be taken in

 Installation at indoor site

by other products.

1. For a facility having a large installation area (that can vent the air naturally):
Make an air outlet on a wall at a high level and air inlet on a wall at a low level, to allow for

adequate airflow.

2. For a facility having a small installation area (that can not vent the air naturally):
Make a forced air exhaust vent on a wall at a high level and an air inlet on a wall at a low level.

3. Using duct to exhaust the air:

In case the indoor site cannot accept the exhausted air from the product or/and is air
conditioned, ventilate by installing a duct on the outlet ventilation of the product. Do not fasten

the duct on the outlet ventilation of the product directly. Have the space at least the duct’s

diameter apart. Use a fan for the duct that considered the ventilation resistance of the duct.

Table 3.2-1 Amount of radiation and required ventilation

 Installation environment specifications

Sound noise:HRL100-A-20 : 75 dB(A)

HRL200-A-20 : 75 dB(A)
HRL300-A-20 : 71 dB(A)

* Front 1m, height 1m, rated condition

3.2 Installation

HRL Series

3-7

3.2.3 Installation and maintenance space

800mm or more

800mm or more

2000mm or more

400mm or more

800mm or more

Have an enough space for the ventilation for the product. Otherwise it
may cause a lack of cooling capacity or/and stoppage of the product.
Ensure there is enough space for maintenance.

It is recommended to keep the space around the product shown in Fig. 3-3.

Fig. 3-3 Installation space (This drawing shows “HRL-A-20”.)

HRX-OM-W060

Chapter 3 Transport and Setting Up

HRL Series 3.2 Installation

HRX-OM-W060

3-8

Anchor bolt

Nut

Base of the product

Hole for anchor bolt (12mm)

Bracket

Install the product on a vibration free level floor.
Prepare the M10 anchor bolts that are suitable for the material of the
floor that the product will be installed on. Drive the anchor bolts in at
least two places on the left and right sides of the product (four places
in total). Refer to “8.2 Dimensions” for the dimensions for the position
of the anchor bolts.

Chapter 3 Transport and Setting Up

3.3 Installation

3.3.1 Installation

 Use a bracket

1. Install this product according to the anchor bolts installed on the level floor.

2. Fasten the nuts to the anchor bolts.

3. Make sure that there is no looseness on all the anchor bolts and nuts.

[Tips]

SMC Foundations bolt set “IDF-AB500” (SUS M10x50mm) is applicable.
Please order separately.

3.3 Installation

Fig. 3-4 Installation procedures

HRL Series

3-9

 Use the adjuster foot

Lower the adjuster to the level floor
to fix the product in place.

Caster

Install the product on a vibration free level floor.
be sure to use the adjuster foot to install on the floor. The adjuster foot
is not earthquake-proof. If necessary make an earthquake-resistant
measure on the customer side.

1. Install the product on a level floor.

2. Lower the adjuster to the level floor to fix the product in place.

Fig. 3-5 Installation by adjuster foot

HRX-OM-W060

Chapter 3 Transport and Setting Up

HRL Series 3.3 Installation

HRX-OM-W060

3-10

 Do not modify the internal electrical wiring of the product. Incorrect

wiring may cause electric shock or fire. Also, modifying the internal
wiring will void the product’s warranty.

 NEVER connect the ground to water line, gas pipe or lightning

conductor.

 The installation of electrical equipment and wiring work should be

performed only by personnel with sufficient knowledge and
experience.

 Be sure to shut off the user’s power supply. Wiring with the product

energized is strictly prohibited.

 The wiring must be conducted using cables complying with “Table

3.3-1” and firmly secured to the product to prevent the external force
of cables being applied to the terminals. Incomplete wiring, or
improper securing of wiring, may cause electrical shock or excessive
heat and fire.

 Ensure a stable power supply with no voltage surges.
 Ensure that an earth leakage breaker is used in the power supply of

the product. See “Table 3.3-1”.

 Use a power supply suitable for the specifications of the product.

Use a power supply of over voltage category 3 (IEC60664-1)*.

 Be sure to connect the ground connection.
 Ensure that a lock out facility is availble on the power supply.
 Each product must have its own separate earth leakage breaker.

Otherwise there can be a risk of electric shock or fire.

 Ensure that no harmonics are superimposed at power supply.

(Do not use inverter, etc.)

 Supply a steady power supply which is not affected by surges or

distortion. In particular, if the voltage rate of increase (dv/dt) at
zero crossing exceeds 40V/200μsec, it may cause malfunction.

V

dV

dt

dt

= Voltage ratio

on zero-cross point

dV

t

Voltage rise %

Time

Voltage

Chapter 3 Transport and Setting Up

3.3.2 Electrical wiring

3.3 Installation

HRL Series

HRX-OM-W060

3-11

Model

Power

supply

voltage

Terminal

block
screw

diameter

Recommend

ed crimp

terminal

Cable

Specifications

1

Earth leakage

breaker

Breaker

size

(A)

Sensitivity

of

leakage

current

(mA)

HRL100-A-20

200 VAC/

200-230

VAC

50/60Hz

3 phase

M5

R5.5-5

4 cores x

AWG10

(4 cores x 5.5 mm2)

*including

ground

30

30

HRL200-A-20

R8-5

4 cores x

AWG8

(4 cores x 8 mm2)

*including

ground

40

HRL300-A-20

50

Chapter 3 Transport and Setting Up

 Power supply specifications, power supply cable and earth leakage breaker

Prepare the power supply shown in the following table. For the connection between the
product and power supply, use the power supply cable and earth leakage breaker shown
below. An earth leakage breaker must be mounted to a position where the breaker is easily
accessible and close to the thermo-chiller.

Table 3.3-1 Power supply cable and earth leakage breaker (Recommended)

*1. Cable specifications are the examples when using the product at a continuous allowable operating

temperature of 70 oC, with an operating voltage of 600 V and two kinds of plastic insulated wires at an
ambient temperature of 30 oC. Please select the proper size cables according to the actual condition.

HRL Series 3.3 Installation

HRX-OM-W060

3-12

 The electrical facilities should be installed and wired in accordance

with local laws and regulations of each country and by a person who
has knowledge and experience.

 Check the power supply. Operation with voltages, capacities and

frequencies other than the specified values can cause fire and electric
shock.

 Wire with an applicable cable size and terminal. Forcibly mounting

with an unsuitably size cable may result in heat generation or fire.

Be sure to lock out and tag out the breaker of the facility power supply
(customer power supply facility) before wiring.

Be sure to connect the power supply cable from the product side first,

and then connect the breaker of the facility power supply (the user’s

machine power supply).

 When the panel is removed or mounted, be sure to wear protective

shoes and gloves to prevent injury with the edge of the panel.

Chapter 3 Transport and Setting Up

3.3.3 Preparation and wiring of power supply cable

3.3 Installation

HRL Series

3-13

A breaker that has the operating characteristic below is installed. Please use a
breaker that has the same or longer operating time as/than this for the customer
side (upstream side). If it has a shorter operating time, there is a possibility of
accidental breaker trip due to the internal motors’ inrush currents of this product.

4h
2h
1h

30min
20min
14min

10min

6min
4min

2min
1min

30s
20s

10s

5s

2s
1s

0.5s

0.2s

0.1s

0.05s

0.02s

0.01s
100 135 200 300 400 500600700 1000 1500 2000 3000 4000

Current (% for breaker capacity)

Operating time

Min.

Max.

HRX-OM-W060

Chapter 3 Transport and Setting Up

Operating characteristics of the breaker

HRL Series 3.3 Installation

HRX-OM-W060

3-14

OFF

Note: Turn off the earth leakage breaker.

The front panel of the electrical unit
cannot be removed without turning off
the breaker.

Screw

Front panel for the
electrical unit

Chapter 3 Transport and Setting Up

Preparation for operation



1. Remove four screws to remove the front panel for the electrical unit.

Fig. 3-6 Remove the front panel for the electrical unit

3.3 Installation

HRL Series

Chapter 3 Transport and Setting Up

3-15

Handle

View A

power supply cable

Cap

2. Hold the handle and pull up the front panel of the electrical unit, and remove it.

Fig. 3-7 Remove the front panel for the electrical unit

HRX-OM-W060

3. Loosen the power cable outlet cap and insert the power cable.

Fig. 3-8 Wiring of power supply cable

HRL Series 3.3 Installation

HRX-OM-W060

3-16

power supply cable

PE L1 L2 L3

View A

Chapter 3 Transport and Setting Up

4. Connect the power supply cable and the ground cable as shown in the figure below.

Fig. 3-9 Wiring of power supply cable

* Connect an over current protection to the power cable connected to the equipment to avoid hazard.

3.3 Installation

HRL Series

Chapter 3 Transport and Setting Up

3-17

Connector specification (this product side)

Dsub 25 pin female (socket) type

Be sure to lock out and tag out the breaker of the facility power supply
(the user’s machine power supply) before wiring.

 Use the connector that are specified.
 The capacity of the output contact of the product is limited. If the capacity is

not large enough, install a relay, etc. (to allow for larger capacity). Also, ensure
that the input current of the relay is small enough in relation to the contact
capacity of the product.

3.3.4 Contact input/output communicatin wiring

The product has a contact input/output communication function as shown
below. Connect cables referring to the applicable chapter for each function.

 Run/Stop input (Refer to “3.3.5 Wiring of Run/Stop signal input”)

HRX-OM-W060

 Contact output signal(Refer to “3.3.6 Wiring of contact output

signal”)

 Analog output signal (Refer to “3.3.7 Wiring of analog output signal”)

Use the signal cable described below for wiring of each function.

 Contact Input/Output communication connector

The following connectors are used for this product as a contact input / output
signal connector. Please prepare suitable mating connector cable.

Table 3.3-2 Contact input/output communication connector

HRL Series 3.3 Installation

HRX-OM-W060

3-18

Item

Specification

Contact
input
signal1,2,3

Insulation system

Photo coupler

・Run/Stop signal
・External switch signal

・Operation mode request signal

(Contact input 3 fixed)

Rated input
voltage

DC24V

Operating voltage
range

DC21.6V to 26.4V

Rated input
current

5mA TYP

Input impedance

4.7kΩ

Contact output
signal

1,2,3,4,5,6

Rated load
voltage

AC48V or less /
DC30V or less

・Signal of operating status
・Alarm signal
・TEMP READY signal etc *2

Maximum load
current

AC/DC 800mA or less *1

Minimum load
current

DC5V 10mA

Analog output
signal 1,2

Output voltage range

0V to +10V

￣

Maximum output current

10mA

Maximum accuracy

±1.0%F.S. or less

DC24V output voltage

DC24V±10% 200mA MAX 1

(It can not be used for inductive load.)

Chapter 3 Transport and Setting Up

Table 3.3-3 Contact input/output/ analog output communication specification

1:The total load current must be 800 mA or less. To use the power of the device, the total load current

must be 200 mA or less.

2:Refer to “3.3.6 Wiring of contact output signal”

3.3 Installation

HRL Series

HRX-OM-W060

3-19

PIN

No.

Application

Division

Default setting

1

DC24V output

Output

－

2

DC24V input

Input

－

3

Contact input signal 1

Input

Run/Stop 1

4

Contact input signal 3

Input

Operation mode request signal (fix )2

5

Contact output signal 6

Output

OFF1

6

Contact output signal 1

Output

Run status signal [N.O type](fix)2

7

Contact output signal 3

Output

Operation continuation[WRN]alarm signal

[N.C. type ](fix)2

8

Contact output signal 5

Output

OFF 1

9

None

－

－

10

Analog output signal 2

Output

CH2 Electric conductivity 1

11

Analog output signal 1

Output

CH2 Circulating fluid temperature 1

12

None

－

－

13

None

－

－

14

24 COM output
(Common of contact input signal)

Output

－

15

Common of contact output signal
1, 2, 3, 4, 5

Output

－

16

Contact input signal 2

Input

External switch signal 1

17

None

－

－

18

Common of contact output signal 6

Output

－

19

Contact output signal 2

Output

Operation stop [FLT] alarm signal

[N.C. type ](fix)2

20

Contact output signal 4

Output

OFF 1

21

None

－

－

22

Common of contact output signal 2

Output

－

23

Common of contact output signal 1

Output

－

24

None

－

－

25

None

－

－

Chapter 3 Transport and Setting Up

Table 3.3-4 Contact input/output communicatin /Analog output pin number

1 : It is possible to change the setting.
2 : You can not change the setting(“N.O type / N.C. type” can be changed).

HRL Series 3.3 Installation

HRX-OM-W060

3-20

Fig. 3-10 Circuit diagram

When using this product's power supply,
connect pin 1 to pin 2 and the COM side
of each contact input signal to pin 14.

When using a customer's power
supply, connect the 24V DC +
side to pin 2 and the COM side
of each contact input signal to
the customer's power COM.

Power supply usage example

Customer power supply usage example

DC24V

1

14

3

2

1

14

3

2

Power
supply

DC24V
24COM

4

3
4

This product power supply
usage example

Analog output 1 : CH2 Circulating fluid temperature

This product side Customer system side

DC24V

+

-

-15V

100Ω

ANALOG COM

24COM

Contact output 1 : Operation status

1

24COM

DC +24V(output)

4.7kΩ

4.7kΩ

4.7kΩ

+15V

+

-

-15V

100Ω

+15V

ANALOG COM

Internal

circuit

14

3

16

4

6

19

7

20

8

15

5

18

11

23

10

22

Contact output 2 : "FLT"

Contact output 3 : "WRN"

Contact output 4 : OFF

Contact output 5 : OFF

(Momentary)

Run／Stop

Operation mode request

［Warning alarm occurrence OFF]

［Fault alarm occurrence OFF]

［Operation ON]

Contact output 6 : OFF

2

DC24V

DC +24V(input)

EXT DC24V

EXT 24COM

Power
supply

Analog output 2 : CH2 Electric conductivity

External switch

24COM(output)

Contact output 1-5 common

Contact output 6 common

Analog output1common

Analog output 2 common

Chapter 3 Transport and Setting Up

3.3 Installation

HRL Series

HRX-OM-W060

3-21

Chapter 3 Transport and Setting Up

3.3.5 Wiring of Run/Stop signal input

This product can be remotely controlled by the contact signal. This chapter
illustrates examples of wiring.

To enable Run / Stop signal input, set the operation mode to "DIO mode"
after wiring. (Refer to “5.4.1 Home screen Operation mode”(P.5-12)).

[Tips]

This product has three input signals. Two of them can be customized
depending on the customer’s application.

1. Prepare the switch (power supply voltage: 24 VDC, contact capacity: 35 mA or more,

minimum load current: 5mA) and suitable connector cable.

HRL Series 3.3 Installation

HRX-OM-W060

3-22

14 〃 1

2

3

Pin No.

〃 〃 ←Run/Stop signal

Inlet of the signal
cable

Note: Prepare a cable tie.
Fasten the signal cable to
the mount on the base with
the cable tie.

Mount for
cable tie

D sub 25 female pin

(socket) type

13

1

25

14

Chapter 3 Transport and Setting Up

2. Wire the contact input / output signal connector as follows and connect it to this

product. (This wiring is an example.)

Fig. 3-11 Wiring of Run/Stop signal input and remote signal input (Example)

3.3 Installation

HRL Series

3-23

3.3.6 Wiring of contact output signal

Contact

output

Content of the signal

(Default setting)

Operation

Contact output
signal 1

Operation status
signal

N.O.

During operation:Contact closed
During operation stop:Contact open
With power supply cutoff:Contact open

Contact output
signal 2

Operation stop
[FLT] alarm signal

N.C

While alarm being generated:Contact open
While alarm being generated:Contact
closed
With power supply shut off:Contact open

Contact output
signal 3

Operation
continuation[WRN]
alarm signal

N.C

While alarm being generated:Contact open
While alarm being generated:Contact
closed
With power supply shut off:Contact open

Contact output
signal 4,5,6

OFF

－

－

Be sure to turn OFF the breaker of the facility power supply (the user's
machine power supply) before wiring.

Contact output signals are the signals that output the status of this product.
Contact specification of each signal output is shown below.

Contact specification of each signal output is shown below.

Table 3.3-5 Contact signal output at the factory setting

HRX-OM-W060

Chapter 3 Transport and Setting Up

[Tips]

This product has six output signals. Three of them can be customized to

user’s application

Signals shown below can be output. Refer to “5.4.10 Communication setting
screen ”.

・DIO MODE signal output
・Alarm signal output
・Maintenance remainder signal output
・CH1 TEMP READY signal output
・CH2 TEMP READY signal output
・TEMP OUT signal output
・Startup setting signal output
・Anti-freezing setting signal output
・Warming up setting signal output
・Operation mode request signal status
・Selected alarm signal output
・Selected maintenance signal output

HRL Series 3.3 Installation

HRX-OM-W060

3-24

No.

Signal item

Output voltage

Default setting

1

CH2 circulating fluid

temperature

0.0 to 100.0 °C：0.00 to 10.00V

Analog output 1

2

CH2 electric conductivity

0.1 to 50.0μS/cm：0.02 to 10.00V

Analog output 2

3

CH1 circulating fluid

temperature

0.0 to 100.0 °C：0.00 to 10.00V

－

Connector specification (this product side)

Dsub 9 pin female (socket) type

Be sure to turn OFF the breaker of the facility power supply (the user's
machine power supply) before wiring.

Chapter 3 Transport and Setting Up

3.3.7 Wiring of analog output signal

This product can output analog signals

The contents of the analog output signal and the factory settings are as follows.
The signal content can be selected from three types. Refer to “5.4.10 Communication setting

screen”

Table 3.3-6 Analog output signal

3.3.8 RS-485 communication wiring

This product can operate the following by serial communication RS-485.

-Control of Run/Stop

-Circulating fluid temperature setting

-Circulating fluid temperature reading

-Operation status reading

-Alarm condition reading
Refer to Operation Manual Communication Function for more details.

 RS-485 communication connector

The following connector is used for this product as a connector for RS – 485
communication. Please prepare suitable mating connector.

Table 3.3-7 RS-485 communication connector

3.3 Installation

HRL Series

HRX-OM-W060

3-25

Dsub 9 female pin

(socket) type

5

1

9

6

Be sure to turn OFF the breaker of the facility power supply (the
user's machine power supply) before wiring.

Chapter 3 Transport and Setting Up

Fig. 3-12 RS-485 communication wiring

 Wiring of interface communication cable

 Connecting to PC

RS-485 cannot be directly connected to a normal PC. Use a RS-232C/RS485 converter
which is available on the market.

HRL Series 3.3 Installation

HRX-OM-W060

3-26

Connector specification (this product side)

Dsub 9 pin female (socket) type

2

SD+ 5 SG 7 SD-

SD+

SD-

SG

Terminal

Master

This product

(first slave)

2

SD+ 5 SG 7 SD-

This product

(second slave)

2

SD+ 5 SG 7 SD-

This product

(31 slaves)

st

resistance

resistance

Terminal

Chapter 3 Transport and Setting Up

Be sure to follow the wiring procedure shown below for connecting multiple thermo-chillers.

 Configuration of connection

One thermo-chiller for one host computer, or multiple thermo-chillers for one host
computer.
(31 thermo-chillers can be connected at maximum.)

[Tips]

Both ends of the communication connection (the end nodes) need to be
connected to the host computer.

If the terminating resistor is required, please be connected by the customer.

3.3.9 RS-232C communication wiring

This product can operate the following by serial communication RS-232C.

-Control of Run/Stop

-Circulating fluid temperature setting

-Circulating fluid temperature reading

-Operation status reading

-Alarm condition reading
Refer to Operation Manual Communication Function for more details.

 RS-232C communication connector

The following connector is used for this product as RS-232C communication
connector.Please prepare suitable mating connector.

Table 3.3-8 communication connector

 Wiring of communication cable

3.3 Installation

HRL Series

3-27

2

3

5

RD

SD

SG

2

3

5

RD

SD

SG

Master This product

Be sure to turn OFF the breaker of the facility power supply (the
user's machine power supply) before wiring.

Be sure to wire as shown in the figure below.

 Configuration

One thermo-chiller for one master.

HRX-OM-W060

Chapter 3 Transport and Setting Up

Fig. 3-13 Connection of RS-232C

HRL Series 3.3 Installation

HRX-OM-W060

3-28

 Connect piping firmly. Incorrect piping might cause leakage of

supplied or drained fluid and wet surrounding area and facility.

 Use caution not to allow dust and foreign matter to enter the water

circuit, etc. during connection of piping.

 Securely connect the piping at the piping port with specific wrench

when tightening.

 Incorrect piping can burst in service.
 Use non-corrosive material for fluid contact parts of circulating fluid

and/or facility water. Also, the use of corrosive materials such as
aluminum or iron for fluid contact parts, such as piping, may not only
lead to clogging or leakage in the circulating fluid and facility water
circuits but also refrigerant leakage and other unexpected problems.
Provide protection against corrosion when you use the product.

 Do not generate a rapid change of pressure by water hammer, etc.

Internal parts of the product and/or the piping may be damaged.

 It is recommended to use heat insulation to reduce the heat radiation

and absorption to/from customer's piping.

Be sure to wear protective shoes and gloves to prevent injury with the
edge of the panel.

Chapter 3 Transport and Setting Up

3.4 Piping

3.4 Piping

HRL Series

HRX-OM-W060

3-29

CH

No.

Description

Port size

Recommended

tightening

torque

Recommended

piping

specifications

CH1

Circulating fluid
outlet port

Chiller side

1” union

178 to 185 N・m

－

Filter side

Rc1 1

36 to 38N・m

1.0MPa

or more

Circulating fluid
return port

Rc1 2

36 to 38N・m

1.0MPa

or more

Tank drain port

Rc3/4 2

28 to 30N・m

－

CH2

Circulating fluid
outlet port

Chiller side

1/2” union

64 to 70 N・m

－

Filter side

Rc1/2 1

20 to 25N・m

0.8MPa

or more

Circulating fluid
return port

Rc1/2 2

20 to 25N・m

0.8MPa

or more

Tank drain port

Rc1/2 2

20 to 25N・m

－

Chapter 3 Transport and Setting Up

 Piping port size

Table 3.4-1 Piping port size

1 ： When the piping thread type "F (G thread)" or "N (NPT thread)" is selected, it becomes "G thread "

or "NPT thread ".

2 ： When the piping screw type "F (G thread)" or "N (NPT thread)" is selected, a conversion joint is

included.

[Tips]

<For HRL-AN->

A set of thread adapters that converts the connections from Rc to NPT is
enclosed as an accessory. For NPT thread, be sure to use this adapter.

<For HRL-AF->

A set of thread adapters that converts the connections from Rc to G is
enclosed as an accessory. For G thread, be sure to use this adapter.

HRL Series 3.4 Piping

HRX-OM-W060

3-30

Nipple(1”)

Union(1”)

Gasket (1”)

CH1 particle filter

CH1 Circulating fluid outlet

Chapter 3 Transport and Setting Up

■ Installation of particle filter

Attach the accessory particle filter. Be sure to install it.

1. Wrap seal tape around the nipple (1”) of the CH1 particle filter set, and connect the

union (1”) to the CH1 circulating fluid outlet.

(Recommended tightening torque：36 to 38N・m)

Fig. 3-14 Tightening of piping

2. Attach the CH1 particle filter. Insert the gasket (1”) and install it.

(Recommended tightening torque：178 to 185N・m)

3.4 Piping

HRL Series

3-31

Filter tapping screw

(Recommended tightening

torque：8.4N・m)

Panel screw

(Recommended tightening

torque：3.0N・m)

CH1 filter bracket

Nipple(1/2”)

Union(1/2”)

3. Attach the CH1 filter bracket.

HRX-OM-W060

Chapter 3 Transport and Setting Up

4. Wrap seal tape around the nipple (1/2”) of the CH2 particle filter set, and

connect the union (1/2”) to the CH2 circulating fluid outlet.

(Recommended tightening torque：20 to 25N・m)

HRL Series 3.4 Piping

HRX-OM-W060

3-32

Gasket(1/2”）

Filter tapping screw
(Recommended

tightening torque：2.0N・m)

Panel screw

(Recommended tightening

torque：3.0N・m)

CH2 particle filter

Chapter 3 Transport and Setting Up

5. Attach the CH2 particle filter. Insert the gasket (1/2”) and install it.

(Recommended tightening torque：64 to 70N・m)

6. Attach the CH2 filter bracket.

3.4 Piping

HRL Series

3-33

■ Installation of particle filter element

Filter case

Maintenance handle white

( Accessory )

Filter case

Maintenance handle black

( Accessory )

1. Remove the filter case using the maintenance handle.

Fig. 3-15 CH1 particle filter removal

Fig. 3-16 CH2 particle filter removal

HRX-OM-W060

Chapter 3 Transport and Setting Up

2. Insert the element and mount the filter case.

HRL Series 3.4 Piping

HRX-OM-W060

3-34

Hold the filter outlet side

Without holding the filter side fitting of the circulating fluid outlet with
a wrench, the fitting may rotate and it may cause a fluid leakage and/or
malfunction of the product. Be sure to hold the filter side fitting.

Hold the ball valve.

Without holding the ball valve of the drain port with a wrench, the ball
valve may rotate and it may cause a fluid leakage and/or malfunction
of the product. Be sure to hold the ball valve of the drain port.

Chapter 3 Transport and Setting Up

■ How to connect to the circulating fluid outlet

When piping the circulating fluid outlet , hold the filter outlet side fitting of the
circulating fluid outlet with a wrench not to rotate it.

Fig. 3-17 Hold the filter outlet side

■ How to connect to the drain port

When piping the drain port, hold the ball valve of the drain port with a wrench
not to rotate it.

Fig. 3-18 Connection to the drain port

3.4 Piping

HRL Series

3-35

 Recommended piping circuit

2

2

2

2

3

User's

equipment

4

4

4

4

Circulating fluid outlet

CH1

Circulating fluid return port

CH1

Circulating fluid outlet

CH2

Circulating fluid return port

CH2

for Laser

source

for

Optical

systems

1

1

Thermo-chiller

No.

Description

Size

1

Particle filter (Accessory)

filtration accuracy ：5μm

2

Valve

1” 3 Flow meter

Prepere a flow meter with an appropriate flow range.

4

Valve

1/2”

HRX-OM-W060

Chapter 3 Transport and Setting Up

 Mounting of DI filter

At delivery, "temporary piping for DI filter" is connected.
Install the DI filter (accessory) according to "7.4.2 Replacing the DI filter".

Fig. 3-19 Recommended piping circuit

HRL Series 3.4 Piping

HRX-OM-W060

3-36

cap

cap
CH1 supply port

CH2 supply port

Chapter 3 Transport and Setting Up

3.5 Circulating Fluid Supply

1. Ensure that the power source and the power supply of the product is turned off.

2. Check the drain port is valve to prevent the supplied circulating fluid from draining out.

3. Open the circulating fluid supply port by turning it counterclockwise, and fill the

circulating fluid within the range from Low to High shown on the level gauge. Use tap
water which satisfies the water quality standard shown in Table 7.1-1, or a DI water
(pure water). When deionized water is used, the conductivity should be 0.5 μS/cm or
higher (Electrical resistivity: 2 MΩ･cm or lower).

Fig. 3-20 Supplying the fluid to the supply fill port

3.5 Circulating Fluid Supply

HRL Series

HRX-OM-W060

3-37

 When tap water is used, refer to “7.1 Quality Control of Circulating

Fluid and Facility Water”.

 When deionized water is used, the conductivity should be 0.5

μS/cm or higher (Electrical resistivity: 2 MΩ･cm or lower).

 Confirm that the fluid level is between “HIGH” and “LOW” level of the

fluid level gauge.

Fluid level gauge

Fluid level displayed range

HIGH

LOW

Chapter 3 Transport and Setting Up

Fig. 3-21 Fluid level gauge

Open the supply port cap and put the circulating fluid within the display range of "HIGH" and "LOW".

HRL Series 3.5 Circulating Fluid Supply

HRX-OM-W060

3-38

Chapter 3 Transport and Setting Up

3.5 Circulating Fluid Supply

HRL Series

Chapter 4 Starting the Product

4-1

Only people who have sufficient knowledge and experience about the
product and its accessories are allowed to start and stop the product.

Chapter 4 Starting the Product

4.1 Before Starting

Check the following points before starting the product.

 Installation state

 Check that the product is installed horizontally.
 Check that there are no heavy objects on the product, and the external piping

is not applying excessive force to the product.

 Connection of cables

 Check that the power, ground and I/O signal cables (to be supplied by user)

are correctly connected.

 Circulating fluid piping

HRX-OM-W060

 Check that the circulating fluid piping is correctly connected to the inlet and

 Fluid level gauge

 Confirm that the fluid level is between “HIGH” and “LOW” levels of the fluid

outlet.

level gauge.

HRL Series 4.1 Before Starting

HRX-OM-W060

4-2

ON

Chapter 4 Starting the Product

4.2 Preparation for Start

4.2.1 Power supply

Turn ON the facility power supply breaker.
Turn ON the breaker handle.
If the product is powered on properly, the touch panel of the product operates as
follows.

・ The startup screen first appears on the touch panel and then switches to the

operation screen (home screen).

Fig. 4-1 Position of the breaker handle(the figure shows HRL200-A-20)

Fig.4-2 Startup screen

4.2 Preparation for Start

Fig.4-3 Operation screen (home screen)

HRL Series

4-3

4.2.2 Operation screen (home screen)

No. Classification CH number Item Explanation

To select a operatrion mode from the touch panel

( mode), contact input ( 　mode) or

serial communication ( mode).

(14) Common

Run/Stop

To run/stop the product.

Common

Operatrion mode

(11)

Button

CH1

Independent pump
operation

(13)
CH1 pump operates independently w hile the button is
pressed.

(12)

CH2

Independent pump
operation

CH2 pump operates independently w hile the button is
pressed.

(9)

Circulating fluid
electric conductivity

It indicates the electric conductivity.

(10)

Common

Operating condition
display

It indicates the run and stop status of the
product.

(7)

Circulating fluid
discharge pressure

It indicates the discharge pressure.

(8)

Circulating fluid
flow rate

t indicates the flow rate measured by a flowmeter.
It does not include the flow rate in the bypass circuit.

Circulating fluid
temperature

It indicates the current temperature.

(6)

Circulating fluid
set temperature

It indicates the set temperature.

(1)

Displayed value

CH1

Circulating fluid
temperature

It indicates the current temperature.

(2)

Circulating fluid
set temperature

It indicates the set temperature.

(3)

Circulating fluid
Discharge pressure

It indicates the discharge pressure.

(4)

Circulating fluid
flow rate

It indicates the fluid flow rate. This value is
not measured by a flowmeter. It should be
used as a reference value (rough indication).
It includes the flow rate in the bypass circuit.

(5)

CH2

(1)

(2)

(3)

(4)

(11)

(5)

(6)

(7)

(8)

(9)

(12)

(14)

(10)

(13)

Items displayed on the home screen are listed in Table 4.2-1 Items displayed
on the home screen
Refer to Chapter 5 Display and Setting of Various Functions for details.

Fig. 4-4 Home screen

Table 4.2-1 Items displayed on the home screen

HRX-OM-W060

Chapter 4 Starting the Product

HRL Series 4.2 Preparation for Start

HRX-OM-W060

4-4

After supplying the
fluid, press [ ]
button to turn off the
alarm.

Independent pump
operation is carried
out while the button
is pressed.

Chapter 4 Starting the Product

4.3 Preparation of Circulating Fluid Supply to User's
Equipment

Circulating fluid is supplied only inside the product at the time of installation of
the thermo-chiller. If the operation is started under this condition, the product

circulating fluid is supplied to user’s device and the piping. This lowers the

fluid level of the product so additional fluid must be supplied. Follow the
instructions below to supply additional fluid.

1. Touch [ ] button or [ ] button on the touch panel.

Pump operates independently while pressing the [ ] button.
[ ] button (blue) lights up during independent pump operation. The circulating
fluid is then supplied to user’s device and the piping to bleed the air inside the piping.

[Tips]

Independent pump operation is carried out at the following pump rotations:
50% for CH1 and 45% for CH2 (minimum rotation). The product does not
operate at maximum rotation. Care should be taken.

Fig.4-5 Pump independent operation

If the fluid level in the tank drops, an alarm is activated and “AL02 CH1 Low Level WRN” or “AL04
CH2 Low Level WRN” is displayed on the screen.

2. Supply circulating fluid in the range between HIGH and LOW to turn off the alarm.

After supplying the circulating fluid, press [ ] button to turn off the alarm.
The displayed alarm will be turned off.

4.3 Preparation of Circulating Fluid Supply to User's Equipment

Fig. 4-6 Turning off the low tank fluid level alarm

HRL Series

4-5

Alarm menu screen

Menu

Home screen

Touch

Press

3. Touch [ (menu key)]to display the menu.

When [ ] button is pressed, the home screen will be displayed.

HRX-OM-W060

Chapter 4 Starting the Product

HRL Series 4.3 Preparation of Circulating Fluid Supply to User's Equipment

Fig. 4-7 Screen change from alarm menu to home screen

HRX-OM-W060

4-6

Value shown in
orange

Touch this mark

Numeric keys

Enter a value

Chapter 4 Starting the Product

4. Repeat the procedures 1–3 until the fluid level of the product stops dropping.

[Tips]

While the low tank fluid level alarm (AL02/AL04) is still on (without turning off
the alarm), the home screen can be displayed to carry out independent pump

operation. If the fluid level continues to drop, the alarm “AL01 CH1 abnormal

low tank fluid level” or “AL03 CH2 abnormal low tank fluid level” is activated.

4.4 Operation Start and Stop

4.4.1 Setting of circulating fluid temperature

Press the [SP] value on the touch panel (home screen) to display numeric
keys to set the circulating fluid set temperature. Enter the set temperature for
CH1 and CH2.

Fig. 4-8 Setting of CH1 circulating fluid temperature

4.4 Operation Start and Stop

HRL Series

4-7

4.4.2 Setting of pump operation mode

Press

Stopped

ON

Flashing

During operation
preparation

ON

Operation

⇒

⇒

 Allow at least 5 minutes before restarting the product.

When the alarm is activated, refer to “Chapter 6 Alarm Notification and

Troubleshooting”.

Pump operation mode is set in the pressure control mode by default. Refer to
“pump operation mode” (P.5-31) for setting.

[By default] Pressure control mode

・ CH1: The pump output (rotation) is controlled to maintain the

circulating fluid discharge pressure at 0.45 MPa.

・ CH2: The pump output (rotation) is controlled to maintain the

circulating fluid discharge pressure at 0.45 MPa.

4.4.3 Starting the Product

HRX-OM-W060

Chapter 4 Starting the Product

When the alarm is activated, refer to “Chapter 6 Alarm Notification and
Troubleshooting” to turn off the applicable alarm.

1. Press [ ] button on the home screen.

CH1 and CH2 will start operation.
The operating condition display switches from [ ] to [ ] and flashes during the
operation preparation.
The display turns on [ ] when it starts running.

Fig.4-9 Starting the product

2. Ensure that the circulating fluid flow is at least the minimum required flow rate of

applicable types.

HRL Series 4.4 Operation Start and Stop

HRX-OM-W060

4-8

During stop
preparation

⇒

⇒

Stopped

ON

Flashing

ON

Operation

Except in case of an emergency, do not turn OFF the breaker before the
thermo-chiller operation will completely stop. It will cause damage to the
product.

Press

Chapter 4 Starting the Product

4.4.4 Stopping the product

1. Press [ ] button on the home screen.

CH1 and CH2 stop running.
The operating condition display switches from [ ] to [ ] and flashes during the
stop preparation period.
[ ] display turns on when it has stops running.

Fig. 4-10 Stopping the product

2. Please turn OFF the breaker. The touch panel turns off.

4.4 Operation Start and Stop

HRL Series

Chapter 4 Starting the Product

4-9

If abnormality is detected, press [ ] key and turn OFF the
facility power supply (power supply of the user’s equipment) breaker.

4.5 Check Items during Startup

Check the following items after starting the product.

 Confirm that there is leakage from the piping.
 Confirm that no circulating fluid is discharged from the tank drain

port.

 Confirm that the circulating fluid pressure is within the specification

range.

 The fluid level is within the range.

4.6 Adjustment of Circulating Fluid Flow Rate

HRX-OM-W060

If the circulating fluid flow rate is smaller than the minimum required, the
product may fail to maintain performance, making it impossible for the
compressor to operate. Refer to Figure 3-17 to find the recommended piping
circuit fluid flow rate for adjustment, and adjust the manual valve while

monitoring the pressure and flow rate of the user’s equipment to achieve the

required pressure or flow rate.

[Tips]

Refer to “8.1 Specifications” for the minimum required flow rate.

HRL Series 4.5 Check Items during Startup

HRX-OM-W060

4-10

Chapter 4 Starting the Product

4.6 Adjustment of Circulating Fluid Flow Rate

HRL Series

HRX-OM-W060

5-1

Home screen

・
・
・

Various setting screens

Be sure to operate the touch panel only with your fingers. Operating the panel with a
sharp pointed screwdriver or ballpoint pen damages the panel.

Thoroughly read and understand this manual before changing
settings.

Chapter 5 Display and Setting of Various Functions

Chapter 5 Display and Setting of

Various Functions

5.1 Basic Operation

5.1.1 Touch panel

The basic operations of the product are controlled by the touch panel on the front of
the product.

Fig. 5-1 Touch panel

HRL Series 5.1 Basic Operation

HRX-OM-W060

5-2

Startup the software

Home screen

Various screens

Menu

Touch this mark

Buttons to
change the
screen

Press

The “menu” is closed when it is

pressed.

[Menu] key

[Menu] key

“Button” examples

Button

Chapter 5 Display and Setting of Various Functions

5.1.2 Basic operating instructions

Basic operating instructions for the touch panel of the product are
described below.

1. After turning on the power, the startup screen appears on the display and changes to the

home screen.

2. Settings and screen display can be reviewed after the home screen changes to the

respective screen.The menu is displayed when [ ] (menu key) located upper left

on the screen is touched. Go to the respective screen from the menu to check the
settings and screen display content.

Essentially use [ ] key to change the screen. [ ] key is located on every screen.
The menu is closed when [ ] key is touched while the menu is displayed.

Press a button for example to carry out “run/stop,” “selection of function” or “change the screen.”

3.

Any button-shaped section on the screen can be pressed to operate it.

5.1 Basic Operation

HRL Series

Chapter 5 Display and Setting of Various Functions

5-3

Value shown in
orange

Touch this mark

Enter a value

Example of an orange “value”

Example of numeric keys

Numeric keys

4. Touch the value in orange to display numeric keys to enter a value.Enter a set value.

HRX-OM-W060

HRL Series 5.1 Basic Operation

HRX-OM-W060

5-4

6. To software version screen

Startup screen

1. Home screen

2. Menu

3. To status screen

4.To information screen

5. To check operation time screen

11. To temperature waveform display screen

10. To communication setting screen

9.To function setting screen

8. To CH2 setting screen

7. To CH1 setting screen

3.Status screen

3.Status screen

4. Information screen

4. Information screen

Alarm reset

14.Alarm history screen

History clear

1. Home screen

Independent pump operation

RUN/STOP

12.Temperature setting screen

13. Operation modes
selection screen

Chapter 5 Display and Setting of Various Functions

5.2 Flow Chart of Operation Screen

5.2.1 Flow Chart of Operation Screen

Flow chart of operation screens (touch panels) of the product are shown
in from Fig.5-2 Flow chart of operation screen (1/3) to Fig.5-4 Flow chart
of operation screen (3/3).

5.2 Flow Chart of Operation Screen

Fig.5-2 Flow chart of operation screen (1/3)

HRL Series

HRX-OM-W060

5-5

Fig.5-3 Flow chart of operation screen (2/3)

5. Check operation time screen

5. Check operation time screen

Reset operation time

19. Discharge pressure alarm
(AL18/AL19/AL20)

setting screen

7. CH1 setting screen

7. CH1 setting screen

15. Temperature rise/drop
alarm
(AL10/AL11)setting screen

16. TEMP READY function
TEMP READY alarm
(AL12)setting screen

17.OFFSET (TEMP OFFSET)
function setting screen

18.Pump operation mode
setting screen

6.Software version screen

6.Software version and type screen

24. Discharge pressure alarm
(AL21/AL23/AL24/AL26)

setting screen

8. CH2 setting screen

8. CH2 setting screen

20.Temperature rise/drop

alarm

(AL14/AL15)setting screen

21. TEMP READY function
TEMP READY alarm

(AL16)setting screen

22.OFFSET (TEMP OFFSET)
function setting screen

23. Pump operation mode

setting screen

25. Electric conductivity setting screen

Chapter 5 Display and Setting of Various Functions

HRL Series 5.2 Flow Chart of Operation Screen

HRX-OM-W060

5-6

26. Key-lock
Startup operating method

Anti-freezing
Warming-up
function setting screen

9. Function setting screen

9. Function setting screen

27. Continuous
pump operation

setting screen

28.Spare screen
for extension

(disabled)

29. Ambient temperature
alarm(AL35)
maintenance alarm(AL36)
setting screen

31.Data reset screen

30. TEMP OUT function
setting screen

10.Communication setting screen

10. Communication setting screen

31.contact input signal operation

setting screen

32.Serial communication

setting screen

33.Analog output

setting screen

34.Contact input signal

detail setting screen

35.Contact output 1 to 3

setting screen

36.Contact output 4–6 Setting screen

11. Temperature waveform

11. Temperature waveform

Chapter 5 Display and Setting of Various Functions

5.2 Flow Chart of Operation Screen

Fig. 5-4 Flow chart of operation screen (3/3)

HRL Series

5-7

5.3 List of Functions

No. Classification Function Outline

Reference

page

Temperature setting Allows changing the set circulating fluid temperature.

Temperature display Displays the circulating fluid temperature.

Pressure display Displays the circulating fluid discharge pressure.

Run/Stop Run/stop the product.

Independent pump operation Independently operates the pump for CH1 or CH2.

Operating condition display Displays the operating status.

2 Menu Menu display Selects menus for making various settings.

Chapter

5.4.2

3 Status screen Sensor value display Displays the sensor value of the product.

Chapter

5.4.3

Temperature rise/drop alarm Set the temperature rise/drop alarm (AL10/AL11).

TEMP READY function Set TEMP READY signal and alarm (AL12).

TEMP OFFSET Set the offset mode.

Pump operation mode Set the pump operation mode and set value.

Discharge pressure
rise/drop alarm

Set the pump discharge pressure rise/drop alarm (AL19/AL20)
and discharge pressure sensor failure (AL18).

Temperature rise/drop alarm Set the temperature rise/drop alarm (AL14/AL15).

TEMP READY function Set TEMP READY signal and alarm (AL16).

TEMP OFFSET Set the offset mode.

Pump operation mode Set the pump operation mode and set value.

Discharge pressure
rise/drop alarm

Set the pump discharge pressure rise/drop alarm (AL23/AL24)
and discharge pressure sensor failure/flow rate sensor failure
(AL21/AL26).

Electrical conductivity Set the electrical conductivity.

KEY LOCK

Prevent operations other than “run/s top,” “change scree n” and
“alarm res et.”

START-UP Select the operating method to turn on the power.

ANTI-FREEZE Set the anti-freezing operation.

WARMING UP Set the warming up.

PUMP KEEP RUN Set the pump continuous operation function.

Ambient temperature alarm

Select the enabling/disabling of ambient temperature alarm
(AL35).

Maintenance alarm

Set ass ign me nt of “maintenance remin der” as an alarm

signal (AL36).

TEMP OUT function setting Sets TEMP OUT function.

Data reset Reset the set values to default settings.

Communication alarm

Set the communication error (AL34) and contact input 1 and 2
signal detection (AL30/AL31).

Serial communication Sets RS-232C and RS-485.

Analog output Sets the analog output.

Contact input signal Set the contact input signal.

Contact output signal Set the contact output signal.

Chapter

5.4.10

CH1 setting screen

CH2 setting screen
Communication setting screen

Function setting screen

Chapter

5.4.8

Chapter

5.4.7

Chapter

5.4.9

Chapter

5.4.5

Software version screen

Software version can be checked.

Chapter

5.4.6

Check operation time screen

Check operation time
Reset operation time

Following operation times can be checked.
Can reset the operation time.

- Pump

- Compressor

- Fan

- Usage time of DI filter

- Usage time of dustproof filter

Displays the software
version

7

8

9

10

5

6

4

Information screen

Chapter

5.4.4

Displays the alarm name when an alarm activates.
Displays a maintenance reminder.
Displays previously activated alarms.

Alarm/maintenance display

Chapter

5.4.1

1

Home screen

Flow rate display
Operation mode selection

- Displays the operation mode.

- Select the operation from touch panel or by communication.

Displays the circulating fluid flow rate.
A rough indication of the flow rate of [CH1]. It includes the
bypass circuit.
The flowmeter value of [CH2]. It does not include the bypass
circuit.

Function of the product can be set as shown in Table 5.3-1 List of
functions.

HRX-OM-W060

Chapter 5 Display and Setting of Various Functions

Table 5.3-1 List of functions

HRL Series 5.3 List of Functions

HRX-OM-W060

5-8

(1)

(2)

Home screen

(4)

(5)

(6)

(7)

(14)

(9)

(10)

(11)

(12)

(13)

(15)

(18)

(17)

(16)

(8)

(3)

No. CH number Item Explanation

Reference

page

(1) Menu key

Touch the key to display the menu.

P.5-9

Displays the date and time.

Press the numeric section to set the date and time.

Displays TEMP READY status.

Displays the control status of the circulating fluid pressure.

(4) Current circulating fluid temperature Displays the current temperature of circulating fluid. P.5-10

It indicates the set temperature.

Press the numeric section to change the set temperature.

(6) Circulating fluid discharge pressure It indicates the discharge pressure. P.5-11

It indicates the fluid flow rate. This value is not
measured by a flowmeter. It should be used as
a reference value (rough indication).

It includes the flow rate in the bypass circuit.

Displays TEMP READY status.

Displays the control status of the circulating fluid pressure.

(9) Current circulating fluid temperature Displays the circulating fluid temperature. P.5-10

It indicates the set temperature.

Press the numeric section to change the set temperature.

(11) Circulating fluid discharge pressure It indicates the discharge pressure. P.5-11

It indicates the flow rate measured by a flowmeter.

It does not include the flow rate in the bypass circuit.

(13) Circulating fluid electrical conductivity It indicates the electrical conductivity. P.5-11

(14) CH1 Independent pump operation CH1 pump operates independently while the button is pressed. P.5-12

(15) CH2 Independent pump operation CH2 pump operates independently while the button is pressed. P.5-12

To select a operation mode from the touch panel

( mode), contact input ( mode)

or serial communication ( mode).

(17) Operating condition display It indicates the run and stop status of the product. P.5-12

(18) Run/Stop To run/stop the product. P.5-13

P.5-12

P.5-9

(10)

Circulating fluid set temperature

P.5-10

(12)

Circulating fluid flow rate

P.5-11

Date and time display

P.5-9

(3)

CH1

Operating condition display

P.5-9

(5)

Circulating fluid set temperature

P.5-10

(7)

Circulating fluid flow rate

P.5-11

CH2

Operating condition display

(16)

Common

Operation mode

(8)

Common

(2)

Chapter 5 Display and Setting of Various Functions

5.4 Description of Screen

5.4.1 Home screen

Items displayed on the home screen and setting items are shown in

Table 5.4-1 List of check items in inspection monitor menu.

Table 5.4-1 List of check items in inspection monitor menu

5.4 Description of Screen

HRL Series

Chapter 5 Display and Setting of Various Functions

5-9

[Menu] key

Home screen

Menu

Touch this mark

Buttons to
change the
screen

Press

[Menu] key

The “menu” is closed
when it is pressed.

“Ready” / “P. Limit” display

Date and time
display

Home screen

Touch this mark

Date and time entry screen

Enter the
date and time

・Menu key

1. Touch [ ] (menu) key to display the menu.

・Display and setting of date and time

2. Touch the date and time display to set the date and time.

HRX-OM-W060

・Operating condition display

3. Display “TEMP READY status” and “PRESS LIMIT status” of CH1 and CH2.

Display [ ] if the current temperature is within a certain range.
(Refer to ■ About TEMP READY function (P. 5–26) for “TEMP READY function”.) Display
[ ] if the circulating fluid discharge pressure has reached the pressure limit value.
(Refer to ■About control function of circulating fluid discharge pressure (P. 5-31) for
details of “PRESS LIMIT”.)

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-10

Item

CH1

CH2

Setting range

15℃ to 25℃

20℃ to 40℃ 

By default

20℃

25℃

CH2 set temperature ≧CH1set

temperature

Current circulating fluid temperature

Current circulating fluid
temperature of CH1

Current circulating fluid
temperature of CH2

Value shown in
orange

Touch this mark

Enter a value

Circulating fluid set temperature

Entry screen of set temperature

Numeric keys

Chapter 5 Display and Setting of Various Functions

・Current circulating fluid temperature PV

4. Display the current circulating fluid temperature of CH1 and CH2.

・Circulating fluid set temperature SP

5. Display the circulating fluid set temperature of CH1 and CH2.

Touch the numeric part to change the set temperature.

The set temperature ranges of CH1 and CH2 are as follows:
The set temperature of CH2 will be higher than CH1. The set temperature of CH2 must not be set
lower than that of CH1.

[Tips]

Sample set temperature:
・To change from CH1SP: 25ºC and CH2SP: 30ºC status, to CH2SP: 15ºC,
first set CH1SP to 15ºC and then CH2SP to 15ºC. If CH2SP is set to 15ºC
before setting CH1SP to 15ºC, then the following message appears:

Please set CH1SP first.

・Likewise, if a temperature higher than that of CH2SP is entered when

setting CH1SP, then the following message appears: Please set CH2SP
first in this case.

5.4 Description of Screen

HRL Series

Chapter 5 Display and Setting of Various Functions

5-11

Circulating fluid discharge pressure

CH1 circulating fluid
discharge pressure

CH2 circulating fluid
discharge pressure

Circulating fluid flow rate

Flow rate of CH1
A rough indication of

the flow rate.

 It includes the bypass

circuit flow rate.

Flow rate of CH2
 The flow rate

measured by a
flowmeter

 It does not include

the bypass circuit
flow rate.

Electric conductivity

Electric conductivity of CH2

Set temperature error

・Circulating fluid discharge pressure Press PV

6. Display the circulating fluid discharge pressure of CH1 and CH2.

HRX-OM-W060

・Circulating fluid flow rate Flow PV

7. Display the circulating fluid flow rate of CH1 and CH2.

A rough indication including the bypass circuit is shown for the flow rate of CH1.
 The flow rate measured by a flowmeter is shown for CH2. The bypass circuit is not

included.

・Circulating fluid flow rate DI PV

8. Display the electric conductivity of CH2.

Electric conductivity is displayed for CH2 only.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-12

Independent pump operation

The pump operates
independently while the
button is pressed

Operation mode

Press

Operation mode selection screen

Run/stop status display

During operation

Stopped

Chapter 5 Display and Setting of Various Functions

・Independent pump operation Pump

9. The pump operates independently while [ ] or [ ] button is pressed.

・Operation mode MODE

10. Display the current run mode.

Set the operation mode.
[ ]mode is set by default.
Operation mode can be selected from the following three modes:

• [ ] mode: The operation is performed by the touch panel.

• [ ]mode: The operation is performed by contact input signal.
(Refer to “5.4.10 Communication setting screen” for the setting of contact input signal.)

• [ ]mode: The operation is performed by the serial communication

RS-232C/RS-485.

(Refer to “5.4.10 Communication setting screen ” for serial communication.)

・RUN/STOP display

11. Indicates whether the product is running or has stopped running.

5.4 Description of Screen

HRL Series

HRX-OM-W060

5-13

Start of operation

Stopped

Run/stop button

Cannot run because of alarm

Switch to the local mode

Press

Chapter 5 Display and Setting of Various Functions

・Run/stop operation

12. Run/stop the product. Press [ ] button when the product has stopped running to

display “operation check screen”. Press [ ] button to start operation.

The “operating condition display” described in 11 flashes to indicate the period before

operation starts (operation preparation period).
Press [ ] button when the product is running to display “stop check screen”.

Press [ ] button to stop the operation. “Operating condition display” described
in 11 flashes during the period before the operations stops (stop preparation period)

[Tips]

• If [ ] button is pressed when “run/stop (FLT)” alarm is activated,
the “Cannot Run” message appears.

Please turn off the alarm. Refer to “Chapter 6 Alarm Notification and

Troubleshooting” for turning off the alarm.

• If the “Operation mode” is set to anything other than “LOCAL”, a “switch to

the local mode” message appears. Set the running mode to the “LOCAL”

mode.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-14

[Menu] key

Applicable screen

Menu

Touch this mark

Touching the
“menu” closes it.

Press

[Menu] key

The “menu” is closed
when it is touched.
Menu

Press

Status screen

(1)

(2)

(3)

(4)

(6)

(7)

(8)

(9)

(10)

(5)

(11)

(12)

(13)

(14)

Chapter 5 Display and Setting of Various Functions

5.4.2 Menu

[ ] (menu) key is located upper left on the applicable screen.
Touch [ ] key to display the menu. Go to the applicable setting
screen from the menu.
The menu is closed when [ ] key is touched while the menu is
displayed.

5.4.3 Status screen

Press [ ] button on the menu to display “status” screen.
The screen display of the “status” screen is shown in Table 5.4-2 Screen

display of status screen.

5.4 Description of Screen

HRL Series

Chapter 5 Display and Setting of Various Functions

5-15

No.

CH

number

Item

Explanation

(1)

CH1

Current circulating fluid
temperature

Displays the current temperature of the
circulating fluid outlet port.

(2)

Circulating fluid discharge
pressure

Displays the circulating fluid
discharge pressure.

(3)

Circulating fluid flow rate

Displays the circulating fluid flow rate.
*A rough indication of the flow rate.
*It includes the bypass circuit.

(4)

Tank fluid level

Indicates the tank fluid level with three levels:
“sufficient,” “low,” or “insufficient.”

(5)

Heat exchanger inlet
temperature

Displays the inlet temperature of the heat
exchanger for the circulating fluid.

(6)

CH2

Current circulating fluid
temperature

Displays the current temperature of the
circulating fluid outlet port.

(7)

Circulating fluid discharge
pressure

Displays the circulating fluid
discharge pressure.

(8)

Circulating fluid flow rate

Displays the circulating fluid flow rate.
*The value is measured by a flowmeter.
*The bypass circuit is not included.

(9)

Electrical conductivity

Displays the electrical conductivity of the
circulating fluid.

(10)

Tank fluid level

Indicates the tank fluid level with three levels:
“sufficient,” “low,” or “insufficient.”

(11)

Common

Pressure gauge on
high-pressure side of
compressor circuit

Displays the pressure gauge on high-pressure
side of compressor circuit.

(12)

Pressure gauge on
low-pressure side of the
compressor circuit

Displays the pressure gauge on low-pressure
side of the compressor circuit.

(13)

Compressor output

Displays the compressor output.

(14)

Ambient temperature

Displays the ambient temperature
of the product.

“Sufficient” “Low” “Insufficient”

Blue Yellow Red

“Sufficient” “Low” “Insufficient”

Blue Yellow Red

Table 5.4-2 Screen display of status screen

HRX-OM-W060

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-16

Menu

Press

Information screen

Display when an “alarm” is activated or
“maintenance reminder” is issued

Chapter 5 Display and Setting of Various Functions

5.4.4 Information screen

Information screen is displayed when [ ] button on the menu is pressed.
The “informationˮ screen has the following functions:
・To show the content of currently activated “alarms”.

・Displays the content of currently issued “maintenance reminders”.

(Refer to “5.4.5 Check operation time screen and maintenance reminder”

for details.)

・To reset an alarm. (An alarm cannot be reset without first eliminating the cause.)

Refer to “Chapter 6 Alarm Notification and Troubleshooting” for details.)

・To display previously activated alarms (alarm history).

[Tips]

If an “alarm” is activated when the product is operating, the screen
automatically switches to the “information”.
However, if the “maintenance reminder” is issued, the screen will not switch.

[ ] is displayed upper right on the screen if an “alarm” is activated
or a “maintenance reminder” is issued.

5.4 Description of Screen

HRL Series

HRX-OM-W060

5-17

Press

Alarm name

Information screen

Information screen

Information screen

Touch once
to select alarm

Touch twice
to go to alarm
information details

Alarm information details

If the alarm utilizes a
sub-code, that subcode is
displayed.

Chapter 5 Display and Setting of Various Functions

・Alarm reset

1. After eliminating the cause of the alarm, press [ ] button to cancel the alarm.

When the alarm is turned off, alarm names disappear from the “information” screen.

・Alarm name

2. Touch the “alarm” or “maintenance reminder” on the “information” screen to display details

of the alarm. Touching alarm one time displays the alarm information. Touching alarm twice
displays alarm information details. If the alarm utilizes a sub-code, this is displayed in the
alarm information details.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-18

Information screen

Press

Alarm history screen

Touch an
alarm to
select

Touch
The alarm
twice

The date and time of a selected

“alarm” or “maintenance

reminder” are displayed

Subcode is displayed

Alarm history screen

Display of subcode on the
alarm history screen

Press

Press

Alarm history screen

Clearing of alarm history

Chapter 5 Display and Setting of Various Functions

・Alarm log record

3. Previously activated “alarm contents” are displayed if [ ] button is pressed. A

maximum of 300 records can be displayed. The date and time of an alarm are displayed if
the alarm is touched on the “alarm history” screen. A subcode is displayed when an alarm
with a subcode is touched twice.

・Cleaning of alarm history

4. All “alarmˮ records are cleared if the “History Clearˮ button is pressed.

However, the currently activated alarm is not cleared.

5.4 Description of Screen

HRL Series

Chapter 5 Display and Setting of Various Functions

5-19

Information screen

Button

Description

[ ]

Displays both alarm and
maintenance reminder.

[ ]

Displays alarm only.

[ ]

Displays maintenance reminder only.

By default: It is set to “Alarm Maint.”

Press

・Display of alarm/maintenance reminder

5. The “alarm” and “maintenance reminder” on the “information” screen can each be

individually displayed.

HRX-OM-W060

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-20

No.

Indication

Item/replacement cycle

Explanation

1

Pump CH1

Operating time

Displays the operating time for CH1 pump.

20000hour

Displays the recommended replacement
cycle for CH1 pump.

2

Pump CH2

Operating time

Displays the operating time for CH2 pump.

20000hour

Displays the recommended replacement
cycle for CH2 pump.

3

Compressor

Operating time

Displays the operating time for compressor.

30000hour

Displays the recommended replacement
cycle for a compressor.

4

Fan

Operating time

Displays the operating time of a fan.

30000hour

Displays the recommended replacement
cycle for a fan.

5

DI Filter

Usage time

Displays the usage time of a DI filter.

1 to 9999hour

By default: 500 hours

The “maintenance reminder” is issued if the usage

time has reached the hours specified by the user.

6

Dustproof

Filter

Usage time

Displays the usage time of a dustproof filter.

1 to 9999hour

By default: 500 hours

The “maintenance reminder” is issued if the usage

time has reached the hours specified by the user.

7

Run Time

Operating time

Displays the operation time of a chiller.

8

Reset

[ ] button

The operation time is reset to “0 hour” when
[ ] button is pressed.

Menu

Press

Check operation time screen

Operation time of
each component

Overall operation
time of the product

Chapter 5 Display and Setting of Various Functions

5.4.5 Check operation time screen and maintenance reminder

The “check operation time” screen is displayed if [ ] button on the menu

is pressed.

Screen display and function of the “check operation time” screen are shown

in Table 5.4-3 Screen display of check operation time screen.

Table 5.4-3 Screen display of check operation time screen

5.4 Description of Screen

HRL Series

5-21

■About “maintenance reminder” function

Check operation time screen

Enter the usage time

Touch

Check operation time screen

Enter the usage time

Touch

・“Maintenance reminder” is displayed on the “informationˮ screen if a product part in use has

reached its recommended replacement cycle.
・“Maintenance reminder” is always issued if a part of the product has reached the
recommended replacement cycle.
・A “maintenance reminder” signal can be output by contact signal and by serial
communication.

(Refer to “5.4.10 Communication setting screen” for details.)
・A “maintenance reminder” signal can be output as “the AL36: Maintenance alarm”.

(Refer to “5.4.9 Function setting screen Ambient temperature alarm [AL35] and

Maintenance Alarm [AL36]”.)

・Setting the usage time of DI filter

The replacement period (usage time) for a DI filter can be set.

1.

“Maintenance reminderˮ is always issued when the filter reaches the specified time.

Touch the numeric section of DI filter to set the time of use.
Setting range: 1 to 9999 hours (by default: 500 hours)

HRX-OM-W060

Chapter 5 Display and Setting of Various Functions

・Setting of the usage time of dustproof filter

The replacement period (usage time) for a dustproof filter can be set. “Maintenance

2.

reminderˮ is always issued when the filter reaches the specified time. Touch the numeric
section of a dustproof filter to set the usage time.

Setting range: 1 to 9999 hours (by default: 500 hours)

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-22

Menu

Press

Software version screen

Setting screen for TEMP OFFSET
Menu

Setting for temperature rise/drop
alarm (AL10/AL11)

TEMP READY function
TEMP READY alarm (AL12)
setting

Pump operation mode setting

Setting for discharge pressure
alarm (AL18/AL19/AL20)

Chapter 5 Display and Setting of Various Functions

5.4.6 Software version screen

“Software version” screen is displayed if [ ] button on the menu is

pressed. The software number and version number are displayed.

5.4.7 CH1 setting screen

A screen for shifting to the following setting screens is displayed if
[ ] button on the menu is pressed.

Setting screen for temperature rise/drop alarm (AL10/AL11)

・

Setting screen for TEMP READY alarm (AL12) of TEMP READY

・

function
Setting screen for TEMP OFFSET

・

Setting screen for pump operation mode

・
・ Setting screen for discharge pressure alarm (AL18/AL19/AL20)

5.4 Description of Screen

HRL Series

5-23

・Temperature rise/drop alarm (AL10/AL11)

No.

Indication

Item

Setting and selection

Setting

range

(1)

High

Temp.

AL10 : CH1
Circulating fluid
temperature rise

*

Disabled

15 to 55°C
40°C

Operation continues during the alarm

Operation stops during alarm

(2)

Low

Temp.

AL11 : CH1
Circulating fluid
temperature drop

*

Disabled

1 to 25°C
10°C

Operation continues during the alarm

Operation stops during alarm

(3)

Monitor

Timing

Alarm monitoring
conditions

*

Continuous monitoring (monitoring
continues even when the operation is
stopped)

－

Monitoring continues only during
operation.

If [ ] is selected, [ ] or
[ ] should be selected. Refer to

■ About alarm monitoring timing
(P.5–24) for details.

－

(4)

Start/

Out Time

No monitoring
time/extra time

「Start Time」

Alarm monitoring starts when the set
time has passed after the start of
operation.

0 to 9999sec
600sec

「Out Time」

The alarm is activated when the set
time has passed after the
temperature rises/drops out of the
alarm setting range.

0 to 600sec
5sec

Setting for temperature rise/drop alarm (AL10/AL11)

(1)

(2)

(3)

(4)

An alarm can be activated when the current temperature of circulating fluid rises/drops

1.

outside of the setting range.

This function is OFF (deactivated) by default.
The following two types of alarm can be set on the “temperature rise/drop alarm setting” screen:

• AL10: Alarm for CH1 circulating fluid temperature rise/drop––the alarm activates if the
temperature rises above the set temperature.

• AL11: Alarm for CH1 circulating fluid temperature drop––the alarm activates if the
temperature drops below the set temperature.

Following settings can also be selected: Refer to Table 5.4-4 Settings of AL10/AL11.

• Operation of the product at the time of alarm

• Conditions to start alarm monitoring

• Start time for alarm monitoring

HRX-OM-W060

Chapter 5 Display and Setting of Various Functions

Table 5.4-4 Settings of AL10/AL11

By default.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-24

Time

Chiller

Operation

Stop

Circulating fluid set
temperature 20ºC

AL10 alarm monitoring

ON

OFF

(2)

Alarm AL10

Generate

No alarm

AL10 set
temperature 22°C

AL11 set
temperature 18°C

400sec

500sec

(3)

(4)

600sec

(5)

Circulating fluid
temperature

(1)

AL11 alarm monitoring

ON

OFF

1200se

Alarm AL11

Generate

No alarm

Chapter 5 Display and Setting of Various Functions

■ About alarm monitoring timing
If [ ] is selected as (3) “Monitor Timing” alarm monitoring condition, [ ]and

[ ]can be additionally selected. [ ]is a function to start alarm monitoring when the
circulating fluid temperature rises/drops within the alarm setting temperature range in the

time period specified by (4) “Start Time” (no monitoring time). Specific alarm monitoring

timing is shown in Figure 5-5 Alarm monitoring timing.

[Example of setting]

• Circulating fluid SP: 20ºC

• (1) “High Temp.” CH1 circulating fluid temperature rise (AL10): 22ºC

• (2) “Low Temp.” CH1 circulating fluid temperature drop (AL11): 18ºC

• (3) “Monitor Timing” Alarm monitoring conditions: [ ] and [ ]

• (4) “Start Time” No monitoring time: 1200 sec / “Out Time” Extra time: 600 sec

5.4 Description of Screen

Fig. 5-5 Alarm monitoring timing

HRL Series

HRX-OM-W060

5-25

TEMP READY signal (AL12) setting

(1)

(2)

(3)

(4)

Chapter 5 Display and Setting of Various Functions

Status (1): Start operation of the chiller. Monitoring of “AL11” starts since the temperature is 18ºC or

higher which is the value set for “AL11.”

Status (2): Monitoring of “AL10” starts since the temperature falls below 22ºC, which is the value set

for“AL10.”

Status (3): No alarm is activated since the temperature returns to the range within “Out Time” 600

seconds even though it is below 18ºC, which is the value set for “AL11.”

Status (4): No alarm is activated since the temperature returns to the range within “Out Time” 600

seconds even though it is above 22ºC, which is the value set for “AL10.”

Status (5): “AL10” is activated 600 seconds after the temperature rises above 22ºC, which is the value

set for “AL10.”

・TEMP READY alarm (AL12) of TEMP READY function

2. “TEMP READY” signal can be output by signal contact and serial communication if the

circulating fluid temperature is within the range set for the time and temperature.

“TEMP READY” signal cannot be “disabled”.
[ ] is displayed on the “homeˮ screen if “TEMP READY” conditions are met.
(Refer to 5.4.1 Home screen Operation condition display)

The alarm “AL12: TEMP READY alarm” can be output if the temperature does not meet

the TEMP READY conditions. This function is OFF (deactivated) by default.

It can be set on “TEMP READY function setting” screen.
Refer to Table 5.4-5 TEMP READY signal setting and ■ About TEMP READY function
(P.5–26) for details.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-26

No.

Indication

Item

Setting and selection

Setting range

(1)

High/

Low

Upper/lower
temperature
limit

[High]

Sets the upper
temperature limit for
circulating fluid SP.

+0.1 ºC to +10.0 ºC
 +1.0 ºC

[Low]

Sets the lower
temperature limit for
circulating fluid SP.

-0.1 ºC to -10.0 ºC
 -1.0 ºC

(2)

Ready/

Out Time

Stable
temperature
time/extra
time

[Ready Time]

“TEMP READY” signal
is output when the set time
has passed after the
circulating fluid temperature
rises/drops within the range

of (1) “upper/lower
temperature limit.”

10sec to 9999sec
 180sec

[Out Time」

“TEMP READYˮ is cleared
when the set time has
passed after the circulating
fluid temperature rises/drops
outside the range of (1)

“upper/lower temperature

limit” in the “TEMP READY”

condition.

0sec to 600sec
 5sec

(3)

Alarm

Type

AL12 alarm
operation



Disabled

－

Operation continues
during the alarm

－

Operation stops
during alarm

－

(4)

Start Time

Start time of
AL12 alarm
monitoring

[Start Time]

Monitoring of “AL12: TEMP

READY alarm” starts when

the set time has passed
after the start of operation.

0sec to 9999sec
 600sec

Chapter 5 Display and Setting of Various Functions

Table 5.4-5 TEMP READY signal setting

 By default.

■ About TEMP READY function

The operation chart of “TEMP READY” signal is shown in Fig. 4-2 TEMP READY signal

chart.

[Example of setting]

• (1) “High” Upper temperature limit: +2ºC and “Low” Lower temperature limit: -2ºC

• (2) “Ready Time” Stable temperature time: 300 sec and “Out Time” extra

• (3) “Alarm Type” Alarm operation (AL12): “WRN”

• (4) “Start Time” Start time of alarm monitoring (AL12): 1000 sec

5.4 Description of Screen

temperature time: 200 sec

HRL Series

HRX-OM-W060

5-27

Chiller

Operation

Stop

Circulating fluid set
temperature 20ºC

TEMP READY
signal

ON

OFF

(2)

“Low” Lower
temperature limit

-2C

300sec

(5)

200sec

(8)

Circulating fluid
temperature

(1)

TEMP
READY
alarm(AL12)

Generate

No alarm

Time

150sec

(3)

(4)

100sec

(7)

1000sec

(6)

TEMP READY
Alarm (AL12)
monitoring

ON

OFF

“High” Upper
Temperature limit
+2C

Chapter 5 Display and Setting of Various Functions

Fig. 5-6 TEMP READY signal chart

Status (1): Start operation of the chiller.
Status (2): The temperature is in the "High/Low” range, but no “TEMP READY” signal is generated

since “Ready Time” is set at 300 sec at this point.

Status (3): The 300 sec count for “Ready Time” is reset since the temperature is now outside of the

“Low” range.

Status (4): The 300 sec count for “Ready Time” starts since the temperature is now within the

“High/Low” range.

Status (5): “TEMP READY” signal is generated at this point since the temperature remains in the

“High/Low” range for 300 sec of “Ready Time.”

Monitoring of “TEMP READY alarm (AL12)” does not start since “Start Time” is set at

1000 sec.

Status (6): Monitoring of “TEMP READY alarm (AL12)” starts at this point where 1000 sec of “Start

Time” has elapsed.

Status (7): “TEMP READY” signal output continues since the temperature is now back within the

“Out Time” range of 200 sec even though it was temporarily outside the “Low” range.

Status (8): “TEMP READY” signal turns OFF when 200 sec has passed after the temperature rises

above the “High” range. “TEMP READY alarm (AL12)” is simultaneously activated.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-28

No.

Indication

Item

Explanation

Setting range

(1)

Offset Temp.

Offset
temperature

Sets offset temperature.

-20.0 ºC to +20.0 ºC
[By default] 0.0 ºC

(2)

Offset Mode

Offset mode

Selects the offset mode.

OFF / 1 / 2 / 3
[By default] OFF

[ ]

Disabled

[ ]

MODE 1

[ ]

MODE 2

[ ]

MODE 3

Offset setting

(1)

(2)

Chapter 5 Display and Setting of Various Functions

・Offset (TEMP OFFSET) function

3. The circulating fluid temperature can be offset. Refer to ■ About offset function (P.5–28) for

details.

This function can be set on “offset setting” screen.
Refer to Table 5.4-6 Offset setting for details.

Table 5.4-6 Offset setting

■ About offset function

This function controls the circulating fluid discharge temperature with offset.

Temperature offset may occur between the thermo-chiller and the customer’s device
depending on the installation environment. To correct the temperature offset, three types of
offset functions are available (MODE1 to 3). The default setting of this function is “OFF”.

【When communication is used】

The circulating fluid temperature sent by serial communication is the circulating fluid
temperature which is displayed on the thermo-chiller (the circulating fluid temperature after
offset).

5.4 Description of Screen

HRL Series

5-29

●Example of temperature offset

MODE

Explanation

MODE1

Control the temperature so that the discharge temperature of
the circulating fluid is circulating fluid set temperature + offset
temperature. Circulating fluid temperature indicates the
circulating fluid discharge temperature.

MODE2

Control the temperature so that the discharge temperature
of the circulating fluid is circulating fluid set temperature.
Circulating fluid temperature indicates the circulating fluid
discharge temperature + offset temperature.

MODE3

Control the temperature so that the discharge temperature
of the circulating fluid is circulating fluid set temperature +
offset temperature. Circulating fluid temperature indicates
the circulating fluid discharge temperature - offset
temperature.

OFF

Control the temperature so that the discharge temperature of
the circulating fluid is circulating fluid temperature set value.

Circulating fluid display

temperature

30℃

Circulating fluid set

temperature

30℃

This produuct Your system

Serial communication

Discharge

temperature 30℃

Heat

radiation

1℃

29℃

Circulating fluid
temperature 30℃

Circulating fluid display

temperature

31℃

Circulating fluid set

temperature

30℃

Offset temperature

1℃

This produuct Your system

Serial communication

Discharge

temperature 31℃

30℃

Circulating fluid
temperature 31℃

Heat

radiation

1℃

HRX-OM-W060

Chapter 5 Display and Setting of Various Functions

The discharge temperature of the circulating fluid is 30oC, but the fluid temperature in the

customer’s device is 29

o

C because of heat radiation during sending of the fluid.

■Example of MODE 1

When the offset temperature is 1oC, the thermo-chiller controls the temperature at 31oC (circulating fluid
set temperature + offset temperature.) Even if the discharge temperature is 31oC, the circulating fluid
temperature is 30

o

C at the customer’s device because of 1

Circualting fluid display temperature and communication data is 31oC.

HRL Series 5.4 Description of Screen

o

C of heat radiation during sending of the fluid.

HRX-OM-W060

5-30

Circulating fluid display

temperature

29℃

Circulating fluid set

temperature

30℃

Offset temperature

-1℃

This produuct Your system

Serial communication

Discharge

temperature 30℃

29℃

Circulating fluid
temperature 29℃

Heat

radiation

1℃

Circulating fluid display

temperature

30℃

Circulating fluid set

temperature

30℃

Offset temperature

1℃

This produuct Your system

Serial communication

Discharge

temperature 31℃

30℃

Circulating fluid
temperature 30℃

Heat

radiation

1℃

Chapter 5 Display and Setting of Various Functions

■Example of MODE 2

When the offset temperature is -1oC, circulating fluid display temperature and the communication data is
29oC (circulating fluid discharge temperature + offset temperature), and matches the circulating fluid
temperature at the customer's device.

■Example of MODE 3

When the offset temperature is 1oC, the thermo-chiller controls the temperature at 31oC (circulating fluid
set temperature + offset temperature) Even if the discharge temperature is 31oC, the circulating fluid
temperature is 30

o

C at the customer’s device because of 1

o

C of heat radiation during sending of the fluid.
The circulating fluid display temperature and the communication data is 30oC (circulating fluid discharge
temp. - offset temp.), and matches the circulating fluid temperature at the customer's device.

5.4 Description of Screen

HRL Series

HRX-OM-W060

5-31

Pump operation mode setting

(1)

(2)

(3)

(4)

(5)

Chapter 5 Display and Setting of Various Functions

・Pump operation mode

4. Pump operation mode can be set up.

Pump operation mode can be selected from the following three modes:

・ Pressure control mode––operates to maintain the circulating fluid discharge

pressure at the set pressure.This mode is set by default.

The pressure might not rise to the set pressure if the
piping resistance in the user’s device and piping is too
small.

・ Flow control mode–––––operates to maintain the circulating fluid flow rate at the set

flow rate. (However, CH1 flow rate serves as a rough
indication.)

The flow rate might not reach the set flow rate if the piping
resistance in the user’s device and piping is too large.

・ Pump output setting mode––operates to maintain the pump output (rotation) at the

set output.

■About the control function of circulating fluid discharge pressure
This is a function to control the pump output to maintain the circulating fluid discharge pressure
within the set pressure.
This function is “disabledˮ by default. If this function is “enabled”, the control pressure set by
this function gets priority over the pressure, flow rate and output set by the pump operation
mode.
[ ] is displayed on the upper screen when the pump discharge pressure is controlled
during operation.
(Refer to 5.4.1 Operation condition display on home screen.)

This can be set on “pump operation mode setting” screen.

Refer to Table 5.4-7 Pump operation settings for details.

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-32

No. Indication Item

HRL200

HRL300

 Pressure control mode

Flow rate control mode

Set output mode

0.10 to 0.68 MPa
0.50 MPa

Output SP

Control Mode

Press.Limit

Selection of pump
operation mode

HRL300

50.0 to 100.0%
50.0%

-

-

HRL100

20.0 to 120.0 LPM
45.0 LPM

25.0 to 130.0 LPM
45.0 LPM

40.0 to 180.0 LPM

125.0 LPM

0.10 to 0.68 MPa
0.45 MPa

0.10 to 0.68 MPa
0.50 MPa

(5)

Pressure setting for
pressure control
function

Selects enabling/disabling of the
pressure control.

HRL100



Function disabled

HRL200

Function enabled

(3)

Set the output in the
output setting mode

(4) The pump operation is controlled
to maintain the set output (rotation)

when “control mode” (operation

mode) is set to [ ].

(4)

Selects the pump operation mode

(2)

Set flow rate in the
flow rate control
mode

(4) The pump operation is controlled
to maintain the set pressure when

“control mode” (operation mode) is

set [ ].

HRL100

HRL200

HRL300

Flow SP

Explanation

Setting range

(1)

Set the pressure
while in pressure
control mode

(4) The pump operation is controlled
to maintain the set pressure when

“control mode” (operation mode) is

set [ ].

HRL100

HRL200

HRL300

0.10 to 0.50 MPa
0.43 MPa

0.10 to 0.55 MPa
0.45 MPa

0.10 to 0.68 MPa
0.45 MPa

Press.SP

Chapter 5 Display and Setting of Various Functions

Table 5.4-7 Pump operation mode setting

By default

・Discharge pressure alarm (AL18/AL19/AL20)

5. An alarm can be activated when the circulating fluid discharge pressure rises/drops outside

the setting range.This function is set to “ [ ] (stop) at the time of alarm” by default.

The following two alarms can be set on “discharge pressure alarm setting” screen:

• AL19: Alarm for CH1 circulating fluid discharge pressure rise––this alarm activates

when the pressure rises above the set pressure.

• AL20: Alarm for CH1 circulating fluid discharge pressure drop––this alarm activates
when the pressure drops below the set pressure.

Following settings can also be selected:

• Selection of product operation when an alarm occurs

The alarm “AL18: CH1 failure of circulating fluid discharge pressure sensor” activates

when a failure is detected in the circulating fluid discharge pressure sensor. This allows

selecting the product operation when the alarm “AL18” is activated.
This function is set to “operation stops at time of alarm” by default.

If the operation at the time of the alarm “AL18” is set to become [ ] (disabled) or
[ ] (operation continues at time of alarm), the pump operation mode switches to
the “pump output setting modeˮ (50% output) to continue operation when a pressure
sensor failure is detected.

5.4 Description of Screen

HRL Series

HRX-OM-W060

5-33

No.

Indication

Item

Setting and selection

Setting range

(1)

High

Press.

AL19 : CH1
Circulating
fluid discharge
pressure rise

Disabled

0.03 to 0.68MPa
0.50MPa

Operation continues
during the alarm



Operation stops during
alarm

(2)

Low

Press.

AL20 : CH1
Circulating
fluid discharge
pressure drop

Disabled

0.03 to 0.68MPa
0.03MPa

Operation continues
during the alarm



Operation stops during
alarm

(3)

Press.

Sensor

Alarm

AL18: Failure
of circulating
fluid discharge
pressure sensor

Disabled

－

Operation continues
during the alarm



Operation stops during
alarm

Setting of discharge pressure alarm

(AL18/AL19/AL20)

(1)

(2)

(3)

Chapter 5 Display and Setting of Various Functions

Table 5.4-8 Settings for AL18/AL19/AL20

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-34

Menu

Temperature rise/drop alarm
(AL14/AL15) setting

TEMP READY function
TEMP READY alarm
(AL16) setting

OFFSET(TEMP OFFSET)
function setting

Pump operation mode setting

Discharge pressure alarm
(AL21/AL23/AL24/AL26) setting

Electric conductivity and
alarm (AL27) setting

Chapter 5 Display and Setting of Various Functions

5.4.8 CH2 setting screen

A screen for shifting to the following setting screens is displayed if
[ ] button on the menu is pressed.

・ Setting screen for circulating fluid temperature rise/drop alarm

(AL14/AL15)

・ Setting screen for TEMP READY alarm (AL16) of TEMP READY

function

・ Setting screen for TEMP OFFSET
・ Setting screen for pump operation mode
・ Setting screen for discharge pressure alarm

(AL21/AL23/AL24/AL26)

・ Setting screen for electric conductivity (AL27)

5.4 Description of Screen

HRL Series

HRX-OM-W060

5-35

Temperature rise/drop alarm (AL14/AL15) setting

(1)

(2)

(3)

(4)

Chapter 5 Display and Setting of Various Functions

・Temperature rise/drop alarm (AL14/AL15) setting

1. An alarm can be activated when the current temperature of circulating fluid rises/drops

outside of the setting range.

This function is OFF (deactivated) by default.
The following two types of alarm can be set on the “temperature rise/drop alarm setting”
screen:

• AL14: Alarm for CH2 circulating fluid temperature rise––this alarm activates when
the temperature rises above the set temperature.

• AL15: Alarm for CH2 circulating fluid temperature drop––this alarm activates when
the temperature drops below the set temperature.

Following settings can also be selected: Refer to Table 5.4-9 Settings of AL14/AL15 for
details.

• Operation of the product at the time of alarm

• Conditions to start alarm monitoring

• Start time for alarm monitoring

HRL Series 5.4 Description of Screen

HRX-OM-W060

5-36

No.

Indication

Item

Setting and selection

Setting

range

(1)

High

Temp.

AL14 : CH2
Circulating fluid
temperature rise



Disabled

20 to 50 ºC
45 ºC

Operation continues during the
alarm

Operation stops during alarm

(2)

Low

Temp.

AL15 : CH2
Circulating fluid
temperature
drop



Disabled

1 to 40 ºC
10 ºC

Operation continues during the
alarm

Operation stops during alarm

(3)

Monitor

Timing

Alarm
monitoring
conditions



Continuous monitoring
(monitoring continues even when
the operation stops)

－

Monitoring continues only during
operation. If [ ] is selected,
[ ] or [ ] should be
selected. Refer to ■ About alarm
monitoring timing (P.5–24) for
details.

－

(4)

Start/

Out Time

No monitoring
time/extra time

[Start Time]

Alarm monitoring starts when the
set time has passed after start of
operation.

0 to 9999sec
600sec

[Out Time]

The alarm is activated when the
set time has passed after the
temperature rises/drops out of the
alarm setting range.

0 to 600sec
5sec

Chapter 5 Display and Setting of Various Functions

Table 5.4-9 Settings of AL14/AL15

 By default.

・TEMP READY alarm (AL16) of TEMP READY function

2. “TEMP READY” signal can be output by signal contact and serial communication if the

circulating fluid temperature is within the range set for the time and temperature.

“TEMP READY” signal cannot be “disabled”.
[ ] is displayed on the “homeˮ screen if “TEMP READY” conditions are met.
(Refer to 5.4.1 Home screen Operating condition display.)

If the TEMP READY conditions are not met, alarm can be activated as “AL16：TEMP

READY alarm”.This function is OFF (deactivated) by default.

It can be set on “TEMP READY function setting” screen.

Refer to Table 5.4-10 TEMP READY signal setting and ■ About TEMP READY function
(P.5–26) for details.

5.4 Description of Screen

HRL Series