SMC Networks HRZ002-L, HRZ004-L1, HRZ001-L1, HRZ002-L1, HRZ008-L1 Operation Manual

HRX-OM-I051-P

HRZ001-L

HRZ002-L

HRZ004-L

HRZ008-L

HRZ001-L1

HRZ002-L1

HRZ004-L1

HRZ008-L1

HRZ001-L2

HRZ002-L2

HRZ004-L2

HRZ008-L2

HRZ001-H

HRZ002-H

HRZ004-H

HRZ008-H

HRZ001-H1

HRZ002-H1

HRZ004-H1

HRZ008-H1

HRZ002-W

HRZ008-W

HRZ002-W1

HRZ008-W1

HRZ010-WS

HRZ010-W1S

HRZ010-W2S

1stEdition：January.2005

17thEdition：Sep.2016

Operation Manual

Original Instructions

Thermo-Chiller

Save This Manual Carefully for Use at Any Time

© 2016 SMC CORPORATION All Rights Reserved

To the Customers

Note: The contents of this manual are subject to change without notice.

Akihabara UDX 15F,
4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021,JAPAN
Phone: [phone] Fax: [phone]

URL http://www.smcworld.com

Thank you for purchasing our THERMO CHILLER HRZ Series (hereinafter called “This system”).

For the long-term, safe use of this system, be sure to read and understand this manual thoroughly before performing
operation of this system.

 Warnings and precautions defined in this manual shall be observed.

 This manual provides the explanations of the installation and operation of this system. Only those who have

thorough understanding of the fundamental operating procedure or have basic knowledge and skills of handling
industrial equipment for the installation and operation of this system are qualified to perform installation and
operation.

 The contents of this manual and related documents supplied with this system shall be neither regarded as a

provision of the contract nor utilized to correct or modify the existing agreements, commitments and relations.

 Copying, duplicating or transferring any part of or whole contents of this manual without the prior written consent

of SMC Corporation is strictly prohibited.

 The Service Manual is supplied in addition to this manual and provides the explanations of the inspection,

troubleshooting, and in-depth remedies of this system. The Service Manual is intended for service personnel that
completed service training SMC provides. Only those who fall under the above condition are allowed to perform
maintenance and repair of this system with the use of the Service Manual.

HRX-OM-I051

TOC-1

Table of Contents

Table of Contents

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

1.1 Before Using this System ....................................................................................... 1-1

1.2 Danger, Warning, and Caution Used in This Manual............................................. 1-2

1.2.1 Hazard Levels ..................................................................................................................... 1-2

1.2.2 Definitions of “Serious injury” and “Minor injury” ................................................................. 1-2

1.2.3 Symbols ............................................................................................................................... 1-3

1.3 Hazard Warning Label ............................................................................................. 1-4

1.3.1 Type of hazard warning label .............................................................................................. 1-4

1.3.2 Location of hazard warning label ........................................................................................ 1-5

1.4 Location of Model Label ......................................................................................... 1-7

1.5 Safety Measures ...................................................................................................... 1-8

1.5.1 Safety Precautions .............................................................................................................. 1-8

1.5.2 Safety Interlock system ....................................................................................................... 1-9

1.5.3 Lockout/Tagout .................................................................................................................. 1-10

1.5.4 Protective equipment ......................................................................................................... 1-12

1.6 Emergency Measures............................................................................................ 1-13

1.6.1 Emergency off [EMO] switch ............................................................................................. 1-13

1.7 Waste Disposal ...................................................................................................... 1-15

1.7.1 Disposal of refrigerant and compressor oil........................................................................ 1-15

1.7.2 Circulating fluid disposal.................................................................................................... 1-16

1.7.3 System disposal ................................................................................................................ 1-16

1.7.4 Lavel .................................................................................................................................. 1-16

1.8 Material Safety Data Sheet (MSDS) ...................................................................... 1-16

Chapter 2 Name of Each Section ......................................................... 2-1

2.1 Name of Each Section (1) ....................................................................................... 2-1

2.2 Name of Each Section (2) ....................................................................................... 2-2

Chapter 3 Transporting and Installation .............................................. 3-1

3.1 Transporting ................................................................ ............................................ 3-1

3.1.1 Transporting with forklift ...................................................................................................... 3-2

3.1.2 Transporting with caster ...................................................................................................... 3-3

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

3.2.1 Installation conditions .......................................................................................................... 3-4

3.2.2 Installation location and maintenance work area ................................................................ 3-5

3.3 Procedure for Installation ....................................................................................... 3-6

3.3.1 Installation ........................................................................................................................... 3-6

3.3.2 Procedure for system securing (1) ...................................................................................... 3-6

3.3.3 Procedure for system securing (2) ...................................................................................... 3-7

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Table of Contents

3.3.4 Wiring installation ................................................................................................................. 3-8

3.3.5 Procedures for wiring installation ....................................................................................... 3-11

3.3.6 Installation of circulating fluid and facility water piping ...................................................... 3-14

Chapter 4 System Startup and Shutdown .............................................. 4-1

4.1 Pre-check .................................................................................................................. 4-1

4.1.1 Installation condition ............................................................................................................ 4-1

4.1.2 Cable connection ................................................................................................................. 4-1

4.1.3 Installation of circulating fluid and facility water piping ........................................................ 4-1

4.1.4 Operating signal from your system ...................................................................................... 4-1

4.1.5 Check emergency off [EMO] switch .................................................................................... 4-1

4.2 Opening of Facility water Valve .............................................................................. 4-1

4.3 Supply of Circulating Fluid ...................................................................................... 4-2

4.3.1 Preparation of circulating fluid ............................................................................................. 4-2

4.3.2 Supply of circulating fluid ..................................................................................................... 4-3

4.4 Requirement for System Startup ............................................................................ 4-4

4.4.1 Turning ON power................................................................................................................ 4-4

4.4.2 Circulating fluid temperature setting .................................................................................... 4-5

4.5 System Startup and Shutdown ................................................................................ 4-5

4.5.1 System startup ..................................................................................................................... 4-5

4.5.2 System shutdown ................................................................................................................ 4-5

Chapter 5 System Operation ................................................................ 5-1

5.1 Operation Display Panel .......................................................................................... 5-1

5.2 Flow Chart of Operation Screen.............................................................................. 5-2

5.3 Operation Screen ..................................................................................................... 5-3

5.3.1 Model Indication screen ....................................................................................................... 5-3

5.3.2 Status screen 1 .................................................................................................................... 5-3

5.3.3 Status screen 2 .................................................................................................................... 5-4

5.3.4 Status screen 3 .................................................................................................................... 5-4

5.3.5 Status screen 4 .................................................................................................................... 5-5

5.3.6 Menu screen ........................................................................................................................ 5-5

5.3.7 Setting screen ...................................................................................................................... 5-6

5.3.8 Mode Selection screen ........................................................................................................ 5-7

5.3.9 Initial Setting screen ............................................................................................................ 5-7

5.3.10 Maintenance screen ............................................................................................................ 5-9

5.3.11 Option screen ...................................................................................................................... 5-9

5.3.12 Alarm Display screen ......................................................................................................... 5-10

5.3.13 System Information screen ................................................................................................ 5-10

5.4 Examples of System Operation ............................................................................ 5-11

5.4.1 Example 1: Circulating fluid set temperature is changed from 23.0°C to 34.1°C. ............. 5-11

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Table of Contents

5.4.2 Example 2: Communication mode is switched from “DIO REMOTE” to “LOCAL”. ........... 5-13

5.4.3 Example 3: Alarm signal of contact signal is changed from “N/A” to “ALARM1”. ............. 5-14

Chapter 6 Error Message and Troubleshooting .................................. 6-1

6.1 Error Message ................................................................................................ ......... 6-1

6.2 Troubleshooting ...................................................................................................... 6-2

Chapter 7 System Maintenance ........................................................... 7-1

7.1 Water Quality Management ..................................................................................... 7-1

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

7.2.1 Daily inspection ................................................................................................................... 7-2

7.2.2 Quarterly inspection ............................................................................................................ 7-3

7.3 Storage ..................................................................................................................... 7-3

7.3.1 Draining of circulating fluid out of tank ................................................................................ 7-4

7.3.2 Draining of facility water ...................................................................................................... 7-5

7.4 Periodic Replacement Parts ................................................................................... 7-6

Chapter 8 Appendix .............................................................................. 8-1

8.1 Specification ............................................................................................................ 8-1

8.1.1 System specification ............................................................................................................ 8-1

8.1.2 Communication specification.............................................................................................. 8-11

8.1.3 Alarm signal selection ....................................................................................................... 8-13

8.2 Outer Dimensions ................................................................................................. 8-14

8.2.1 Part 1 ................................................................................................................................. 8-14

8.2.2 Part 2 ................................................................................................................................. 8-14

8.2.3 Part 3 ................................................................................................................................. 8-15

8.3 Flow Chart .............................................................................................................. 8-16

8.3.1 Part 1 ................................................................................................................................. 8-16

8.3.2 Part 2 ................................................................................................................................. 8-17

8.4 Offset Function ...................................................................................................... 8-18

8.4.1 Example of offset function ................................................................................................. 8-19

8.5 BAND/READY function ......................................................................................... 8-21

8.6 Anchor Bolt Mounting Position ............................................................................ 8-22

8.6.1 Part 1 ................................................................................................................................. 8-22

8.6.2 Part 2 ................................................................................................................................. 8-23

8.7 Compliance ............................................................................................................ 8-24

8.8 Thermo Chiller Daily Inspection Sheet ................................................................ 8-25

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Table of Contents

HRZ Series

1-1

Chapter 1 Safety

Be sure to read and understand the important precautions defined in
this manual thoroughly prior to system use.

1.1 Before Using this System

This "Safety" chapter describes the safety-related items that users should be



aware of upon handling this system.

This system, which is operated under high voltage, is outfitted with the parts



that cause a rise or drop in temperature and rotating parts when it is in action,
All personnel who work with or around this system are required to thoroughly
read and understand the safety-related items in this manual prior to working
with or around this system.

This manual is not intended to be used as a manual for comprehensive safety



and hygiene education. Such a manual should be provided by a safety training
manager.

HRX-OM-I051

Chapter 1 Safety

All personnel who work on or around this system are to have proper training



and education on dangers specific to this system and safety measures against
potential hazards.

A safety manager is responsible for observing safety standards. Operators and



maintainers, however, are to have individual responsibilies for complying with
the safety standard in his/her daily work.

Operators and maintainers must individually take account of safety and assure a



proper working area and working environment.

The relevant personnel must receive proper safety education prior to work



training on this system. Otherwise, personnel may be exposed to hazards. Never
conduct work training without giving proper consideration to safety.

Save this manual at a designated place for reference when necessary.



HRZ Series 1.1 Before Using this System

HRX-OM-I051

1-2

"DANGER" denotes that there is an imminent hazard which will cause serious
personal injury or death during operation.

"WARNING" denotes that there is a hazard which may cause serious personal injury
or death during operation.

"CAUTION" denotes that there is a hazard which may cause minor personal injury
during operation.

"CAUTION" without an exclamation symbol denotes that there is a hazard which
may cause damage or failure of this system, facility, or devices.

Chapter 1 Safety

1.2 Danger, Warning, and Caution Used in This
Manual

1.2.1 Hazard Levels

This system is designed with its first priority being the safety of workers and the
prevention of system damage. This manual classifies the risks into the following
three categories according to the severity and level of the hazard; Danger, Warning,
and Caution. Read the statements carefully, thoroughly understand them before
operating this system.

DANGER, WARNING and CAUTION signs are in order according to hazard
severity (DANGER > WARNING > CAUTION). See below for the details.

[Tips]

Tips are provided when there is information personnel are required to be
aware of for system operation and maintenance. If the task carries useful
information, the relevant tips are given as well.

1.2.2 Definitions of “Serious injury” and “Minor injury”

 “Serious injury”

This term describes injuries such as loss of eyesight, wound, burns, frostbite,
electric shock, fracture, and toxication that leave aftereffects, and/or injury
requiring hospitalization and/or prolonged staying in a hospital.

 “Minor injury”

This term describes injuries that do not require hospitalization or prolonged staying
in a hospital (injuries other than “serious injuries” described above).

1.2 Danger, Warning, and Caution Used in This Manual HRZ Series

1-3

1.2.3 Symbols

This symbol denotes “Don’t” item which you must

not do in operation of this system.

This symbol denotes the “obligation” items which
you must follow in operation of this system.

This symbol warns you of potential electrical shock.

This symbol warns you of potential burns.

This symbol warns you of potential frostbite.

This manual provides the following symbols in addition to “Danger”, “Warning”,

and “Caution” to present the warning details in easy-to-understand manner.

 Symbol of electrical hazard

 Symbol of heat hazard

HRX-OM-I051

Chapter 1 Safety

 Symbol of low temperature hazard

 Symbol of “Don’ts”

 Symbol of “Required Action”

HRZ Series 1.2 Danger, Warning, and Caution Used in This Manual

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1-4

[High voltage hazard]

This warning label is affixed on the part isolated with the cover panel of the system
panel in which high voltage is applied.
Do not remove cover panels that are not designated in this manual.

Figure 1-1 Hazard warning label No.1

Figure 1-2 Hazard warning label No.2

Figure 1-3 Hazard warning label No.3

Figure 1-4 Hazard warning label No.4

[Hot/cold surface hazard]

This warning label is affixed on the surface that is at high or low temperatures
carrying potential burns (or frostbite) if touched. Residual heat may cause burns
despite the power being turned OFF. Be sure of the surface reaching room
temperature before work.

Figure 1-5 Hazard warning label No.5

Figure 1-6 Hazard warning label No.6

Chapter 1 Safety

1.3 Hazard Warning Label

The hazard warning labels are applied to the sections of this system where
potential hazards are present during system operation and maintenance.

The hazard warning labels are in appropriate sizes and colors to get attention of the
operator. They contain symbols in addition to the descriptions of warnings.

1.3.1 Type of hazard warning label

The hazard warning labels affixed on this system are listed below.

 Labels of high voltage hazard

 Labels of hot/cold surface hazard

1.3 Hazard Warning Label HRZ Series

1-5

1.3.2 Location of hazard warning label

Figure 1-7 High Voltage Hazard

 Confirm the locations of the hazard warning labels.
 Read the contents of the hazard warning labels carefully and keep them in

mind.

Do not peel off or deface the hazard warning labels.

Users are NOT allowed to change the locations of the hazard warning
labels. Make sure to affix a new label to exactly the same location of
the replaced label upon replacement of the peeled off or worn out
label.

Hazard warning label No.2

Front

Hazard warning label No.3

Hazard warning label No.1

Front

Hazard warning label No.4

Hazard warning label No.1

HRX-OM-I051

Chapter 1 Safety

 High voltage hazard

HRZ Series 1.3 Hazard Warning Label

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1-6

Figure 1-8 Hot/Cold Surface Hazard

Front

Rear

Hazard warning label No.5

Hazard warning label No.6

Chapter 1 Safety

 Hot/cold surface hazard

1.3 Hazard Warning Label HRZ Series

1-7

1.4 Location of Model Label

Figure 1-9 Location of Model Label

Label

Rear

Serial No.
Model No.

Front

Information on your system such as Serial No. and Model No. need to be furnished
when you contact the store you purchased from. Serial No. and model No. are
listed on the label as shown below.

HRX-OM-I051

Chapter 1 Safety

HRZ Series 1.4 Location of Model Label

HRX-OM-I051

1-8

Follow the following instructions upon operation of this system.
Failure to follow the instructions can lead to personal injury or hazardous
accidents.

Chapter 1 Safety

1.5 Safety Measures

1.5.1 Safety Precautions

While this system is protected by various safety measures including the safety
interlocks, the following basic safety precautions should be observed to assure
further safe operations.

Read and understand this manual thoroughly before operation of this system.



Before operating the system during maintenance, inform all personnel who are



working in the vicinity of the system to alert them of your action.

Use appropriate tools and follow proper procedures.



See “1.5.4 Protective equipment”to wear protective equipment properly.



Refer to your safety manual for emergency evacuation.



Use assistance to carry object over 20 kg.



Check that all parts and screws are returned to the pre-work conditions at the



end of work.

Do not work when intoxicated or feeling ill. Accidents may occur if



disregarded.

Do not remove a panel unless permitted in this manual.



1.5 Safety Measures HRZ Series

1-9

1.5.2 Safety Interlock system

Front panel

Breaker handle

Figure 1-10 Front Panel

 Safety Interlock system

The function of the safety interlock system is not only protect personnel by
restricting operation that may cause damage to this system or the facility around it
but also eliminate the danger relating to safety. This system is outfitted with
several interlock functions that are activated when improper operation or hazardous
conditions occur. System operation shall be terminated when a safety interlock is
activated

An alarm message is displayed on the LCD screen when a safety interlock is

activated. See “Chapter 6 Error Message and Troubleshooting” for details on the
alarms and remedies or see section “Troubleshooting” in a separate volume of the
“Service Manual”.

 Front panel

System repair may require the removal of the front panel.
The breaker handle operation is available only with the front panel attached.

HRX-OM-I051

Chapter 1 Safety

HRZ Series 1.5 Safety Measures

HRX-OM-I051

1-10

Main breaker

Padlock
Tag

Front

Figure 1-11 Lockout/Tagout

 Those who engage in service of this system should build an awareness of

the importance of lockout. Thorough understanding of the procedures
defined in this manual are required for system service.

 Lockout is allowed only when the system come to a full stop.
 A supervisor should be appointed to direct all personnel if multiple

workers engage in system service.
The supervisor is to perform lockout based on a full understanding of
overall process conditions.

 Not only all personnel but new personnel that engage in service of this

system should build an awareness of the importance of lockout and
obtain thorough understanding of the lockout procedure.

 Any personnel working in an area with high voltage should be assigned

with padlocks and tags. The key for the padlock is kept under the
responsibility of the supervisor, and lockout release is performed upon
completion of work.

Chapter 1 Safety

1.5.3 Lockout/Tagout

 Summary

Lockout in this system disables the main breaker operation to prevent electric
shocks.
Tagout, to be placed on a locked out main breaker, to prevent improper breaker
operation (ON) conducted by other personnel.
See “ Lockout procedure” in the following pages for practical lockout/tagout.

1.5 Safety Measures HRZ Series

1-11

 Lockout procedure

Padlock

Lock pushing part

Lock mechanism part

Figure 1-12 Breaker Handle at ‘OFF ’

Figure 1-13 Breaker Handle at ‘RESET’

Figure 1-14 Pushing of Lock Mechanism Part

Figure 1-15 Breaker Lock

All service personnel must observe the restrictions applied during
lockout and are required to perform lockout in accordance with this
procedure. No service personnel is allowed to start, energize, or use
the locked out system.

1. Turn the breaker handle to ‘OFF ’.

HRX-OM-I051

Chapter 1 Safety

2. Turn the breaker handle to ‘RESET’.

Hold the breaker handle with hand.



The handle turns back to ‘OFF ’ if released.

3. Push the lock pushing part of the breaker

handle, and turn the breaker handle to
‘OFF ’.

The lock mechanism part is to remain opened.



4. Lock the lock mechanism part with the

padlock.

 Releasing lockout

1. Remove the padlock from the lock mechanism part.

2. Turn the breaker handle to ‘RESET’.

The lock mechanism part is closed.

The handle turns back to ‘OFF ’ if released.



HRZ Series 1.5 Safety Measures

HRX-OM-I051

1-12

Read and understand the relevant operation manual thoroughly prior to use
of protective equipment.

Chapter 1 Safety

1.5.4 Protective equipment

This manual defines protective equipment according to work type.
Wear proper protective equipment as shown below, according to work type.

 For system transportation, installation and removal

 Protective footwear  Protective gloves  Hard hat

 For handling circulating fluid

 Protective footwear  Protective gloves  Protective mask
 Protective apron  Protective goggles

 For system operation

 Protective footwear  Protective gloves

1.5 Safety Measures HRZ Series

1-13

1.6 Emergency Measures

Figure 1-16 Location of Emergency Off [EMO] Switch

1.6.1 Emergency off [EMO] switch

Press the red emergency off [EMO] switch on the front of the system only if the
need to shut off the power arises due to emergency such as natural disaster, fire,
earthquake or personal injury.

The emergency off [EMO] switch is a large, red mushroom-shaped push button
labeled with ‘EMO’ on it. The system comes to a halt if this button is pressed.

When press the emergency off [EMO] switch, the control power for this system is
shut off to bring the system to a stop. The main breaker of this system, however, is
designed not to trip, which enables the motor circuit to remain partially energized.
“8.1.2 Communication specification” in Chapter 8 Appendix on page 8-5 to view
the circuit diagram and see how the EMO switch is interconnected to the system.

Restart of this system is enabled only when this button is reset manually.

 Location of emergency off [EMO] switch

HRX-OM-I051

Chapter 1 Safety

HRZ Series 1.6 Emergency Measures

HRX-OM-I051

1-14

Figure 1-17 Emergency Off [EMO] Switch

No automatic recovery is applied to the emergency off [EMO] switch.
Always eliminate the cause of activating the EMO before resetting.
Potential serious accidents may occur if disregarded.

When the system is in remote mode, the remote mode is retained despite the
power outage. Thus the system operation is to resume as the start signal is
issued from your system.

Chapter 1 Safety

 Reset of emergency off [EMO] switch

1. Before restarting, always make sure that the cause of the emergency off condition (The

reason why the EMO switch was activated) has been eliminated from the power supplies,
the system and peripheral equipment.

2. With the cause completely eliminated,

turn the emergency off [EMO] switch
clockwise to reset.

The EMO button returns to its original position.

3. The screen then changes from the “Model Indication screen” to “Status screen 1” as power

is being restored to the system.

1.6 Emergency Measures HRZ Series

1-15

1.7 Waste Disposal

Only service personnel or those who are qualified are allowed to open
the panel of this system.

Do not dispose of the compressor oil as domestic garbage.
Incineration is permitted only at an authorized incinerator.

Disposal of the compressor oil must be in accordance with regulations and
rules of local authorities.

The release of refrigerant into the air is prohibited by law.
Recover the refrigerant with the “refrigerant recovery system”, and
request the specialized waste disposal agency for disposal of the
recovered refrigerant.

Only personnel with proper licensing, who have adequate knowledge and
experiences with not only this system but associated equipment are allowed
to implement the recovery of the refrigerant and compressor oil.

1.7.1 Disposal of refrigerant and compressor oil

HFC- refrigerant and compressor oil are present in this system. When recovering
the refrigerant or compressor oil, the precautions provided below should
thoroughly be read and understood in advance. If you have any questions or
concerns, contact the system supplier.

HRX-OM-I051

Chapter 1 Safety

[Tips]

For the type and quantity of the refrigerant, See “Location of Model Label” on
page 1-7.

HRZ Series 1.7 Waste Disposal

HRX-OM-I051

1-16

Chapter 1 Safety

1.7.2 Circulating fluid disposal

As to the disposal of a circulating fluid (ethylene glycol solution, fluorinated fluid),
consign the specialized industrial waste disposal agency with the contents detailed.

1.7.3 System disposal

As to the disposal of this system, consign the specialized industrial waste disposal
agency in accordance with local laws and regulations.

1.7.4 Lavel

Label described below which is attached to the top panel of product is that required
by Japanese law, and the content of this label is applicable in Japan only.

Contents of description of this label is shown as follows.

Fluorocarbon Collection and Destruction Law in Japan
This product uses Fluorocarbon (HFC) as a refrigerant.

1. It is strictly forbidden to emit Fluorocarbon to the atomosphere.

2. When disposing this product, Fluorocarbon must be collected in an appropriate
manner.

3. This kind of Fluorocarbon and the amount used in this product is printed on the
name label.

1.8 Material Safety Data Sheet (MSDS)

Material Safety Data Sheet (MSDS) is supplied separately. Contact the system
supplier if you need the MSDS regarding chemicals used in this system.

For each chemical you purchased, the relevant MSDS is to be obtained under your
responsibility. Keep the MSDS along with this manual in the condition that allows
all personnel to check the contents anytime to gain the understanding of potential
hazards.

1.8 Material Safety Data Sheet (MSDS) HRZ Series

Chapter 2 Name of Each Section

2-1

Emergency off [EMO] switch

Refrigerant pressure gauge

Main breaker

Power cable access

Circulating fluid

fill port

Facility water outlet

Circulating fluid
return

Circulating fluid level gauge

Circulating fluid supply

Drain pan port

Facility water inlet

Ventilating fan (exhaust side)

Operation display panel

Sub tank drain port

Main tank drain port

Ventilating hole
(intake side)

Caster w/ brake

Rotates 360°.

Chapter 2 Name of Each Section

2.1 Name of Each Section (1)

HRZ001-L HRZ002-L HRZ004-L
HRZ001-L1 HRZ002-L1 HRZ004-L1
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-L2
HRZ001-H HRZ002-H HRZ004-H HRZ008-H
HRZ001-H1 HRZ002-H1 HRZ004-H1 HRZ008-H1
HRZ002-W HRZ008-W HRZ002-W1 HRZ008-W1
HRZ010-WS HRZ010-W1S HRZ010-W2S

HRX-OM-I051

HRZ Series 2.1 Name of Each Section (1)

Figure 2-1 Name of Each Section (1)

[Tips]

The front casters (2 pcs.) have built-in brakes. The disengagement of the
brakes is required when transporting the system.

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2-2

When transporting the system with the casters, raise the adjustable feet
(4 pcs.) to the highest position and lock them with the nuts.
The adjustable foot at the lower position may cause damage to this
system and personal injury through contact with the floor or steps
during system transport.

Operation display panel

Refrigerant pressure gauge

Ventilating hole
(intake side)

Ventilating fan (exhaust side)

Power cable access

Circulating fluid fill port

Facility water outlet

Circulating fluid supply

Facility water inlet

Main tank drain port

Drain pan port

Circulating fluid return

Circulating fluid level gauge

Caster

Rotates 360°.

Nut

Main breaker

Emergency off [EMO] switch

Sub tank drain port

Adjustable foot

Chapter 2 Name of Each Section

2.2 Name of Each Section (2)

HRZ008-L HRZ008-L1

Figure 2-2 Name of Each Section (2)

2.2 Name of Each Section (2) HRZ Series

HRX-OM-I051

3-1

Proper procedure must be followed when using this system.
Exercise caution to assure personnel safety during the installation, operation,
maintenance, and inspection of the system.

Only personnel, who have adequate knowledge and experiences with not only
this system but associated equipment are allowed to perform transport,
installation, and maintenance involving potential hazardous task.

For transporting with the forklift, be sure to insert the fork into a
designated position, referring to “3.1.1 Transporting with forklift” on
page 3-2.

Do not set this system on its side during transportation. Oil in the
compressor drains into the refrigerant pipe, which causes lubricant
shortages leading to damage to the compressor.

Drain the remaining fluid out of the pipe as much as possible.
The remaining fluid may spill if disregarded.

Exercise caution not to damage the panel and piping with the forklift
when transporting the system.

Chapter 3 Transporting and Installation

Chapter 3 Transporting and Installation

3.1 Transporting

This system is heavy, which poses potential danger at transportation.
When transporting this system, the following safety precautions should be
observed to prevent system damage and breakdown.

HRZ Series 3.1 Transporting

HRX-OM-I051

3-2

Figure 3-1 Transport with Forklift

 This system is heavy, and requires a forklift to safely move it.
 Forklift insertion positions are on either left or right side of this system.

Always insert the forks all the way through. Becareful not to hit the
casters and adjustable feet.

 Do not set this system on its side for transportation. Potential damage to

this system carrying danger of personnel injury if disregarded.

 Do not insert the fork from the back as well as front.

Rear

Front

Forklift insertion side

Forklift insertion side

Chapter 3 Transporting and Installation

3.1.1 Transporting with forklift

3.1 Transporting HRZ Series

3-3

3.1.2 Transporting with caster

This system is heavy, which requires assistance for this work.
Exercise caution and look out for sloped surfaces such as ramps, etc.

Do not grab piping on the back of this system or panel handles when
transporting with the casters.
Potential damage to piping and panels may occur if disregarded.

System installation should be kept from areas with the potential of
flammable gas leak. Ignition may occur if leaked gas is collected
around the system.

This system is NOT designed for outside use.
Potential electric shock, fire and system damage may occur if exposed
to rain, water and dust.

This system is to be installed on a level floor that can withstand the
weight of this system. Potential water leak and personal injury due to
system tipping over may occur if disregarded.

3.2 Installation

HRX-OM-I051

Chapter 3 Transporting and Installation

HRZ Series 3.2 Installation

HRX-OM-I051

3-4

Chapter 3 Transporting and Installation

3.2.1 Installation conditions

System installation is not allowed outside or in the conditions described below.
Potential system malfunction and damage may occur if disregarded.

Clean room specifications are not applied to this unit. The pump and ventilating
fan installed in this unit generate particles.

Location that is exposed to water vapor, salt water, and oil



Location that is exposed to dust and powder



Location that is exposed to corrosive gas, solvent, and flammable gas



Location that is exposed to direct sun light or radiant heat



Location where ambient temperature is out of the following range:



In operation 10 to 35°C
In storage 0 to 50°C (with no water or circulating fluid in piping)

Location where relative humidity is out of the following range:



In operation 30 to 70%
In storage 15 to 85%

Location that is subjected to abrupt changes in temperature



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



intense magnetic field, or surges)

Location that is subjected to static electricity, or condition that discharges static



electricity to the system

Location that is subjected to strong high frequencies



Location that is subjected to potential lightning damage



Location with altitudes of 1000m or higher



Location that is affected by strong vibrations or impacts



Condition that applies external force or weight causing the system deformation



Condition with no adequate space for maintenance as required in the installation



site.

3.2 Installation HRZ Series

Chapter 3 Transporting and Installation

3-5

Daily inspection area

Operation area

Front

Figure 3-3 Installation Location

Front

800mm

800mm

800mm

800mm

Figure 3-2 Recommended Installation Location

3.2.2 Installation location and maintenance work area

This system does not have ventilating hole on the both right and left sides. Although this can be
installed directly contacting to walls or devices, installation with maintenance space is
recommended. (See “Figure 3-2)

HRX-OM-I051

To save space, this system can be installed to allow access only in front and back for daily operation
and inspection. For maintenance and repair work, additional access space is required for the left and
right side of the system. We recommend a separate repair area, without taking space from
installation site, to accommodate the needed extra space.

HRZ Series 3.2 Installation

HRX-OM-I051

3-6

 Anti-seismic bracket is an optional part (except for HRZ008-L, HRZ008-L1), which is

required for the installation of this system (HRZ-TK002).

 Preparation of anchor bolts suitable for floor material is your responsibility. M8-anchor

bolts (8 pcs.) are required for HRZ008-L and HRZ008-L1, and M12-anchor bolts (4 pcs.)
for other models. See “Appendix 8.5 BAND/READY function”

Figure 3-4 Anti-seismic Bracket Attachment

Drain pan port is assigned to the bottom on the back of this system. Exercise
caution not to damage the dain pan port when attaching the anti-seismic bracket.

Front

Anti-seismic bracket (optional)
HRZ-TK002

M8 nut (2 pcs.)
(Accessory for anti-seismic
bracket)

Caster w/ brake
(2 pcs. on the front)

Brake lever

M12 anchor bolt

Chapter 3 Transporting and Installation

3.3 Procedure for Installation

3.3.1 Installation

System installation should be on a vibration-free stable level plane.



See “Appendix 8.2 Outer Dimensions” in Chapter 8 on page 8-14 for the



dimensions of this system.

3.3.2 Procedure for system securing (1)

HRZ001-L HRZ002-L HRZ004-L
HRZ001-L1 HRZ002-L1 HRZ004-L1
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-L2
HRZ001-H HRZ002-H HRZ004-H HRZ008-H
HRZ001-H1 HRZ002-H1 HRZ004-H1 HRZ008-H1
HRZ002-W HRZ008-W HRZ002-W1 HRZ008-W1
HRZ010-WS HRZ010-W1S HRZ010-W2S

1. Transfer this system to the installation site.

2. Lock the brakes on casters (2 pcs. on the front).

3. Using a13-mm open end wrench, attach the anti-seismic brackets to the front and back.

3.3 Procedure for Installation HRZ Series

3-7

Figure 3-5 Anti-seismic Bracket Attachment

Nut (upper)

Adjustable foot

Anti-seismic bracket
(accessory)

Nut (lower)

M8 anchor bolt

Nut (upper)

3.3.3 Procedure for system securing (2)

HRZ008-L HRZ008-L1

Adjust and secure the adjustable feet of this system to secure the anti-seismic
bracket.

1. Transfer this system to the installation site.

2. Adjust the adjustable foot with a 24-mm

open end wrench.

Level the system (using a leveler) by adjusting



the adjustable feet.

All adjustable feet (4 pcs.) must touch the



floor completely.

Casters need not be touching the floor.



HRX-OM-I051

Chapter 3 Transporting and Installation

3. Attach the anti-seismic bracket to the

adjustable foot, and tighten the nut
(upper) of the adjustable foot to lock it.

4. Secure the anti-seismic bracket with the anchor bolts. Repeat precedures for additional

brackets.

HRZ Series 3.3 Procedure for Installation

HRX-OM-I051

3-8

Item

HRZ001-H
HRZ001-H1
HRZ002-H
HRZ002-H1

HRZ001-L
HRZ001-L1
HRZ001-L2
HRZ002-L
HRZ002-L1
HRZ002-L2
HRZ004-L
HRZ004-L1
HRZ004-L2
HRZ008-L2
HRZ004-H
HRZ004-H1
HRZ008-H
HRZ008-H1
HRZ002-W
HRZ002-W1
HRZ008-W
HRZ008-W1

HRZ008-L
HRZ008-L1

HRZ010-WS
HRZ010-W1S
HRZ010-W2S

Power cable

Size (recommended)

10AWG4-conductor

10AWG4-conductor

4AWG4-conductor

10AWG4-conductor

Crimp contact

(recommended)

Breaker

R5.5-5

R5.5-5

R22-8

R5.5-8

Earth bar

R5.5-8

R5.5-8

R22-8

R5.5-8

Torque

(recommended)

Breaker

2.5N•m (1.84 ft-lbf)

2.5N•m (1.84 ft-lbf)

6N•m (4.43 ft-lbf)

6N•m (4.43 ft-lbf)

Earth bar

12.5N•m (9.22 ft-lbf)

12.5N•m (9.22 ft-lbf)

12.5N•m (9.22 ft-lbf)

12.5N•m (9.22 ft-lbf)

Main breaker (This System)

20A

30A

60A

30A

Connector

Type (for your system)

Contact signal (P1 connector)

D-Sub 25-pin (male)

Serial RS-485 (P2 connector)

D-Sub 9-pin (male)

 Only designated personnel are allowed to install wiring.
 Be sure to turn OFF the power prior to wiring to assure safety.

Do not do any wiring when the system is energized.

 The system wiring requires not only a thorough connection with the

designated cable but also securing to prevent loose connection. Poor
connection and securing may cause electric shock, heat sports, fire or
communication errors.

 Be sure to supply the power to this system according to specifications.
 Supply pure AC power. Potential malfunction may occur if a rectified AC

with voltage rise (dv/dt)
at zero crossing exceeds 40V /200µ sec.

 Always establish a connection to a ground for safety.
 Be sure that no ground connection is made to

a water pipe, gas pipe and lighting rod.

V

dV

dt

dt

= Voltage ratio

on zero-cross point

dV

t

Voltage rise %

Time

Voltage

Chapter 3 Transporting and Installation

3.3.4 Wiring installation

 Power cable

The power cables are to be prepared under your responsibility, referring to the
following table.

Table 3-1 Power Cable and Main Breaker (This System)

 Communication connector

3.3 Procedure for Installation HRZ Series

The communication connectors are to be prepared under your responsibility,
referring to the following table.

Table 3-2 Communication Connector

Chapter 3 Transporting and Installation

3-9

Figure 3-6 Breaker operating characteristics curve

This product is equipped with the breaker which has different
operating characteristics depending on each model. For the
customer’s equipment (primary side), use the breaker whose
operating time is equal to or longer than the breaker of this product. If
the breaker with shorter operating time is connected, the customer’s
equipment could be cut off du eto the inrush current of the motor of
this product.

Current (% to the capacity of the main breaker of this product)

100 135 200 300 400 500 600 700 1000 1500 2000 3000 4000

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

MIN

Operating time

MAX

 Selection of the breaker for the customer’s equipment (primary side)

HRZ001-L HRZ002-L HRZ004-L
HRZ001-L1 HRZ002-L1 HRZ004-L1
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-L2
HRZ001-H HRZ002-H HRZ004-H HRZ008-H
HRZ001-H1 HRZ002-H1 HRZ004-H1 HRZ008-H1
HRZ002-W HRZ008-W HRZ002-W1 HRZ008-W1

HRX-OM-I051

HRZ Series 3.3 Procedure for Installation

HRX-OM-I051

3-10

Figure 3-8 Breaker operating characteristics curve

Current (% to the capacity of the main breaker of this product)

MIN

Operating time

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
100 135 200 300 400 500 600 700 1000 1500 2000 3000 4000

MAX

Current (% to the capacity of the main breaker of this product)

Figure 3-7 Breaker operating characteristics curve

100 135 200 300 400 500 600 700 1000 1500 2000 3000 4000 5000 7000 100000

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

MIN

MAX

Chapter 3 Transporting and Installation

HRZ008-L HRZ008-L1

HRZ010-WS HRZ010-W1S HRZ010-W2S

3.3 Procedure for Installation HRZ Series

HRX-OM-I051

3-11

M

F

Screw

Breaker cover

Breaker

Front panel

Screw

Front

Main breaker OFF

OFF

Be sure to turn OFF the factory side (primary side) power before
connection to this system.
Use the assigned procedure to peform lockout/tagout (Page 1-10).

Figure 3-9 Main Breaker OFF and Removal of Front Panel/Breaker Cover

Chapter 3 Transporting and Installation

3.3.5 Procedures for wiring installation

1. Turn OFF the power breaker on customer side (primary side), and then use the assigned

procedures to peform lockout/tagout.

[Tips]

Connection of the power cable with this system must be established first.
Do not connect the cable with the factory side at this point.

2. Turn OFF the main breaker of this system.

3. Undo the screws (2 pcs.) to remove the front panel.

Be sure to use a Phillips screwdriver.

4. Undo the screws (2 pcs.) to remove the breaker cover.

Be sure to use a Phillips screwdriver.

[Tips]

Make sure the breaker is at the ‘OFF’ position.
Otherwise, the removal of the front panel is not possible.

HRZ Series 3.3 Procedure for Installation

HRX-OM-I051

3-12

Figure 3-10 Power Cable Insertion and Communication Cable Connection

Correct phase rotation is required when attach the power cable to the
breaker terminal.

Do not drop a screw or washer in the electrical unit when attaching the
breaker cover and terminal.
Do not leave it in the unit if dropped in. Potential failure may occur if
the power is turned ON without removing it.

Cap

Power cable

Serial RS-485 communication cable

P1 (D-sub 25P female)

P2 (D-sub 9P female)

P3 (D-sub 9P male)
Not used.
(Only for maintenance)

Contact signal cable

Chapter 3 Transporting and Installation

5. Loosen the cap and insert the power cable from the power cable access.

6. Connect the communication cables with P1 and P2.

[Tips]

See “Table 3-1 Power Cable and Main Breaker (This System)” on page 3-8
for the recommended cable size and crimp contact.

3.3 Procedure for Installation HRZ Series

Chapter 3 Transporting and Installation

3-13

Figure 3-11 Connection of Power Cable and Grounding Terminal

Earth bar

Main breaker

Grounding terminal

Power cable

7. Connect the power cables to the breaker terminal.

Be sure to use a Phillips screwdriver. See Table 3-1 on Page 3-8 for recommended torque.

8. Connect the grounding terminal (M8) of

the power cable to the earth bar.

Be sure to use a 13-mm open end wrench.
Recommended torque: 12.5 N•m (9.22 ft-lbf)

HRX-OM-I051

[Tips]

See “Table 3-1 Power Cable and Main Breaker (This System)” on page 3-8
for torque value.

9. Attach the breaker cover to the breaker.

10. Attach the front panel.

11. Connect the power cable to the power breaker on customer side (primary side).

HRZ Series 3.3 Procedure for Installation

HRX-OM-I051

3-14

Pipe

Diameter

Recommended torque
(Material: SS* vs SS)

Facility water inlet

Rc1/2

28 to 30N•m

(20.7 to 22.1ft-lbf)

Facility water outlet

Rc1/2

28 to 30N•m

(20.7 to 22.1ft-lbf)

Circulating fluid supply

Rc3/4

28 to 30N•m

(20.7 to 22.1ft-lbf)

Circulating fluid return

Rc3/4

28 to 30N•m

(20.7 to 22.1ft-lbf)

Main tank drain port

Rc3/8 (with valve)

Piping not necessary

Sub tank drain port

Rc3/8 (with valve)

Piping not necessary

Drain pan port

Rc3/8

Piping not necessary

 Choose proper external piping with consideration for pressure,

temperature and compatibility with the circulating fluid. Potential pipe
rupture during operation may occur if disregarded.

 Always insulate external circulating piping. Potential insufficient cooling

performance due to heat absorption from the pipe surface and potential
insufficient heating performance caused by thermal radiation if
disregarded.

 Use clean pipes and pipe fittings, free of particles, oil and moisture.

Apply air blow to the parts before using. The presence of particles, oil or
moisture in the circulating fluid circuit causes insufficient cooling,
system failure attributed to moisture freeze when entering the system, or
foaming of the circulating fluid in the tank.

 The total capacity of circulating fluid required by external piping should

remain under the capacity of the sub tank. Potential problem of tank
overflow, when pump stop, may occur if disregarded. See “Appendix 8.1.1
System specification” in Chapter 8 for the capacity of the sub tank.

 Be sure to choose a circulating fluid pipe capable of letting the fluid flow

at rated flow rate or better. See “Pump performance” defined in

“Appendix 8.1.1 System specification” for the flow rate rating.

 Have a drip pan available incase of a fluid leak.
 Make sure of the locations of ports for the circulating fluid supply, return,

facility water inlet, outlet and their corresponding connections are
correct.

 Secure the piping connector section with a pipe wrench, and provide

proper tightening to the pipe. See Figure 3-11 on page 3-13.

 Do not give an impact when the piping connector section is fixed or

tightened. It may damage the piping or cause leakage.

Chapter 3 Transporting and Installation

3.3.6 Installation of circulating fluid and facility water piping

 Pipe diameter

Table 3-3 Pipe Diameter

3.3 Procedure for Installation HRZ Series

*: SS Stainless steel

3-15

 Procedure for piping installation

No.

Name

Size

Material

1

Valve

Rc3/4

Stainless steel

2

Y-strainer (100m)

Rc3/4

Stainless steel

3

Valve

Rc1/2

Stainless steel

4

Y-strainer (5m)

Rc1/2

Stainless steel

Pipe coupling section

Figure 3-12 Pipe Tightening

System on the

customer side

Circulating fluid supply

Circulating fluid return

Facility water inlet

Facility water outlet

Figure 3-13 Recommended Piping Installation

Secure the pipe coupling section with a pipe wrench, and provide proper tightening
to the pipe.

 Recommended piping installation

HRX-OM-I051

Chapter 3 Transporting and Installation

Table 3-4 Recommended Pipe

HRZ Series 3.3 Procedure for Installation

HRX-OM-I051

3-16

Chapter 3 Transporting and Installation

3.3 Procedure for Installation HRZ Series

HRX-OM-I051

4-1

Only personnel, who have adequate knowledge of and experiences
with not only this system but associated equipment, are allowed to
implement system startup and shutdown.

Check that the facility water complies with not only the water quality
standard defined in section 7.1 “Water Quality Management” on page
7-1 but the requirements provided in “8.1.1 System specification” in
Chapter 8 Appendix on page 8-1.

Chapter 4 System Startup and Shutdown

Chapter 4 System Startup and Shutdown

4.1 Pre-check

Check the following items prior to starting up the system.

4.1.1 Installation condition

Make sure that the system is installed in a horizontal position.



No heavy object is placed on this system. This system should not be applied



with an undue force such as caused by piping installation.

Re-check the items defined in “3.2 Installation” on page 3-3.



4.1.2 Cable connection

Make sure proper connection of the power cable, ground, and communication
cables.

4.1.3 Installation of circulating fluid and facility water piping

Make sure that circulating fluid and facility water piping are installed properly.

4.1.4 Operating signal from your system

Make sure that no remote signal is being issued from your system. System startup
takes effect upon power-ON if this system receives a remote signal and it is in
remote mode.

4.1.5 Check emergency off [EMO] switch

Make sure of the location of the emergency off [EMO] switch before operating the
system. See section 1.6.1 “Emergency off [EMO] switch” in Chapter 1 “Safety”
for details.

4.2 Opening of Facility water Valve

Open the facility water valve for water supply.

[Tips]

This system is outfitted with a water regulating valve inside.
Facility water may not flow upon system startup which is normal.

HRZ Series 4.1 Pre-check

HRX-OM-I051

4-2

Figure 4-1 Circulating Fluid Filll Port and Circulating Fluid Level Gauge

Circulating fluid fill port

Circulating fluid level gauge

Rear

Circulating fluid

specified level

Circulating fluids to use vary with system models.
See section 8.1.1 “System specification” in Chapter 8 for the
designated circulating fluid for a specific model.

 Low concentration EG in the circulating fluid may cause system failure due to it being

frozen in the system.

 High concentration EG in the circulating fluid may cause circulating pump overload,

which triggers “Pump Breaker Trip FLT”.

 Potential cooling error may occur if the circulating fluid varies in concentration.

Make sure of no oil, moisture, and other foreign materials contaminate the
circulating fluid. Potential cooling error or system failure, due to contaminant
freezes internally, may occur if disregarded.

Attention should be taken on water quality. Ensure water quality is within specified
range, and other foreign materials contaminate the circulating fluid. Potential
cooling error or system failure, due to contaminant freezes internally, may occur if
disregarded.

Chapter 4 System Startup and Shutdown

4.3 Supply of Circulating Fluid

4.3.1 Preparation of circulating fluid

 When the circulating fluid is a 60% ethylene glycol aqueous solution

Always check the concentration of the circulating fluid.

 When the circulating fluid is a fluorinated fluid

 When the circulating fluid is water

4.3 Supply of Circulating Fluid HRZ Series

4-3

4.3.2 Supply of circulating fluid

When supplying the circulating fluid, make sure that the fluid inside
this system has dropped to room temperature for the prevention of
burns.

Circulating fluid must be supplied to be in the range between “HIGH”

and “LOW”. Potential overflow of hot circulating fluid may occur due

to excessive volume.
Total fluid volume use to fill up the system including initial priming
should not exceed combined volume of Sub Tank and Main Tank.
If level is below the “LOW” mark, this system will trigger an alarm.

To prevent moisture, which is formed by condensation of a flowed air,
from finding its way into the tank, ensure the circulating fluid at room
temperature when supplying the fluid.
Be sure to tighten the cap until it clicks after fluid supply.
Potential circulating fluid vaporization or moisture intrusion due to
condensation of flowed air may occur if disregarded.

Remove the circulating fluid fill cap, and fill the circulating fluid until it reaches its
specified level.

The circulating fluid specified level is a range between “HIGH” and “LOW” in

Figure 4-1.
Be sure to tighten the cap until it clicks after fluid supply.

If the circulating fluid is supplied over the specified level, follow the procedure
provided in section 7.3.1 “Draining of circulating fluid out of tank” on page 7-4 to
drain excess fluid until it reaches the specified level.

[Tips]

Level between “HIGH” and “LOW” represent liquid level in normal running

condition. Immediately as you start filling up the chiller, the internal
transferring pump start pumping fluid from the Sub Tank into the Main Tank.
Thus the fluid level in the level gauge will start to drop.
During initial priming of the external piping, addition fluid is needed. See
section 8.1.1 “System specification” on page 8-1 for Sub Tank and Main Tank
capacity.

HRX-OM-I051

Chapter 4 System Startup and Shutdown

HRZ Series 4.3 Supply of Circulating Fluid

HRX-OM-I051

4-4

Figure 4-2 Main Breaker at ‘ON’

Press the emergency off [EMO] switch immediately upon ocurrence of
abnormal conditions. Be sure to turn OFF the main breaker afterwards.

Front

ON

Model Indication screen

Status screen 1

System Information screen

Chapter 4 System Startup and Shutdown

4.4 Requirement for System Startup

4.4.1 Turning ON power

1. Make sure that the main breaker for this system is OFF, and release lockout/tagout of the

power breaker on customer side (primary side). Then, turn ON the power.

2. Turn ON the main breaker of this system.

The “Model Indication screen” and “System Information screen” are displayed in sequence on the LCD
screen. The screen will change to the “Status screen 1” in approx. 20 seconds, and the system is ready to run.

[Tips]

It is normal if the “System Information screen” is not displayed. See section

5.3.13 “System Information screen” in “Chapter 5 System Operation” on page
5-10 for details.

4.4 Requirement for System Startup HRZ Series

Chapter 4 System Startup and Shutdown

4-5

Internal equipment may remain at elevated or lowered in temperature
immediately after system shutdown. Potential burns or frostbite may
happen if your skin comes in contact with these surfaces. Further
work is allowed only when the system reaches room temperature.

Emergency off [EMO] switch and main breaker (OFF) should not be
used for system shutdown unless it is an emergency.

4.4.2 Circulating fluid temperature setting

From the “Setting screen” on the LCD screen, set the circulating fluid at any
temperature. See section 5.4 “Examples of System Operation” in “Chapter 5
System Operation” on page 5-11 for operating procedure.

[Tips]

See section 8.1.1 “System specification” in “Chapter 8 Appendix” on page 8-1
for the setting range of circulating fluid temperature.

4.5 System Startup and Shutdown

4.5.1 System startup

Press the [START/STOP] key on the operation display panel.

The [RUN] lamp on the operation display panel comes on, and the “System Information screen” is flashing.

The screen then change to the “Status screen 1”, which initiates system operation.

[Tips]

HRX-OM-I051

It is normal if the “System Information screen” is not displayed. See section
“5.3.13 “System Information screen” in “Chapter 5 System Operation” on
page 5-10 for details.

4.5.2 System shutdown

Press the [START/STOP] key on the operation display panel.

The “System Information screen” is flashing on the LCD screen, and the [RUN] lamp comes on. The
compressor comes to a halt approx. 30 seconds after circulating pump stop for protection of the compressor.
The screen is returned to the “Status screen 1”, which prompts the [RUN] lamp to go out.

[Tips]

See section 5.3.13 “System Information screen” in “Chapter 5 System
Operation” on page 5-10 for details on the System Information screen.

HRZ Series 4.5 System Startup and Shutdown

HRX-OM-I051

4-6

Chapter 4 System Startup and Shutdown

4.5 System Startup and Shutdown HRZ Series

5-1

Chapter 5 System Operation

Be sure to use your fingers only to operate the Operation Display Panel.
Using sharp object will damage the panel.

Operation Display Panel

[RESET] key

Used to stop an alarm
buzzer and initialize the
alarm.

“REMOTE” lamp

This comes on when the
system is in remote mode.

“RUN” lamp

This comes on when the
equipment is running.

[SEL] key

Used to select the
screen.

[ENT] key

Used to determine a set value.

[▲][▼] key

Used to move the cursor and change set
values.

“LCD screen”

“ALARM” lamp

This comes on when
an alarm is raised.

[ ]key

Used to move the
cursor when setting
data.

[START/STOP] key

Used to start and stop
the operation.

5.1 Operation Display Panel

Use the operation display panel located in front of the system for the basic
operations.

HRX-OM-I051

Chapter 5 System Operation

Figure 5-1 Operation Display Panel

HRZ Series 5.1 Operation Display Panel

HRX-OM-I051

5-2

Screen

Descriptions

Reference

Model Indication screen

Displays the model and revision No. of this system.

Page 5-3

Status screen 1, 2, 3, 4

Displays the operating condition of this system.

Page 5-3, 5-4, 5-5

Menu screen 1, 2

Allows setting screen selection.

Page 5-5

Setting screen

Allows the setting of TEMP SP value.

Page 5-6

Mode Selection screen

Allows communication mode selelction.

Page 5-7

Initial Setting screen 1, 2, 3, 4

Allows the setting of set values.

Page 5-7

Maintenance screen 1, 2

Not used during system operation.
Not allowed to use unless otherwise specified.

Page 5-9

Option screen 1, 2

Allows the setting of option.

Page 5-9

Alarm Display screen

The alarm message is displayed in the event of an error
in this system.
Not displayed if no error.

Page 5-10

System Information screen

Displays the status of system startup and shutdown.

Page 5-10

Chapter 5 System Operation

5.2 Flow Chart of Operation Screen

Figure 5-2 Flow Chart of Operation Screen

[Tips]

With the press of the [SEL] key, the screen is switched to the “Menu screen
1” regardless of the screen status.

Table 5-1 Descriptions of Operation Screens

5.2 Flow Chart of Operation Screen HRZ Series

Chapter 5 System Operation

5-3

No.

Item

Descriptions

1

-

System model 2 -

System revision No.

No.

Item

Descriptions

1

TEMP PV

Discharge temperature of the circulating fluid
(A value derived according to the offset*1 if applied)

2

FLOW PV*2

Return flow rate of the circulating fluid

3

PRESS

Discharge pressure of the circulating fluid

1

2

1 2 3

5.3 Operation Screen

5.3.1 Model Indication screen

Figure 5-3 Model Indication Screen

The “Model Indication screen” is displayed upon power-ON of this system.
This screen remains ON for approx. 20 seconds and is automatically switched to the “Status screen 1”.
The “Alarm Display screen” is displayed if error occurs in this system.

Table 5-2 Model Indication Screen

HRX-OM-I051

5.3.2 Status screen 1

Figure 5-4 Status Screen 1

[Tips]

Table 5-3 Status Screen 1

See “Appendix 8.4 Offset Function” in Chapter 8 on page 8-18 for details on
offset (*1).
When using accessory [by-pass piping set] flow becomes total of flow on
customer side and flow on by-pass (*2).

HRZ Series 5.3 Operation Screen

HRX-OM-I051

5-4

No.

Item

Descriptions

1

TEMP PV

Discharge temperature of the circulating fluid
(A value derived according to the offset*1 if applied)

2

TEMP SP

Set circulating fluid temperature

3

OFFSET

Set offset*1

4

OFFSET

The current offset mode

No.

Item

Descriptions

1

FLOW PV*1

Return flow rate of the circulating fluid

2

FLOW SP*1

Set Return flow rate

1 2 3

4 1 2

Chapter 5 System Operation

5.3.3 Status screen 2

Figure 5-5 Status Screen 2

Table 5-4 Status Screen 2

[Tips]

See “Appendix 8.4 Offset Function” in Chapter 8 on page 8-18 on offset
features (*1).

5.3.4 Status screen 3

*Status screen 3 is only indicated on HRZ010-W*S.

Figure 5-6 Status Screen 3

Table 5-5 Status Screen 3

[Tips]

When using accessory [by-pass piping set] flow becomes total of flow on
customer side and flow on by-pass (*1).

5.3 Operation Screen HRZ Series

5-5

5.3.5 Status screen 4

No.

Item

Descriptions

1

TEMP PV

Discharge temperature of the circulating fluid

2

TEMP SP

Set circulating fluid temperature

3

<<TEMP READY>>

Displays the BAND/READY [Displayed when set value
conditions are satisfied］*1

4

TEMP BAND

Set value of BAND range*1

No.

Item

Descriptions

1

SETTING

Swicthes to the “Setting screen” with the press of the [ENT] key.

2

REMOTE/LOCAL

Swicthes to the “Mode Selection screen” with the press of the

[ENT] key.

3

INITIAL SET

Swicthes to the “Initial Setting screen 1” with the press of the
[ENT] key.

4

MAINTENANCE

Swicthes to the “Maintenance screen 1” with the press of the

[ENT] key.

5

OPTION

Swicthes to the “Option screen” with the press of the [ENT] key.

1 2 3

4

1 2 3 4 5

HRX-OM-I051

Chapter 5 System Operation

Figure 5-7 Status Screen 4

Table 5-6 Status Screen 4

[Tips]

See “Appendix 8.5 BAND/READ” in Chapter 8 on page 8-21 on offset
features (*1).

5.3.6 Menu screen

Figure 5-8 Menu Screen

Table 5-7 Menu Screen

HRZ Series 5.3 Operation Screen

HRX-OM-I051

5-6

No.

Item

Setting range

1

TEMP SP

HRZ□□□－L□ : -20.0 to 40.0°C
HRZ□□□-L2 : 10.0 to 40.0°C
HRZ□□□-H□ : 20.0 to 90.0°C
HRZ□□□-W□ : -20.0 to 90.0°C

2

FLOW SP

10 to 40LPM(2.6 to 10.6GPM)
FLOW SP is only indicated on HRZ010-W*S and Setting is available.

1

2

Chapter 5 System Operation

5.3.7 Setting screen

Figure 5-9 Setting Screen

This screen enables the setting of TEMP SP value.

Not available if the communication mode is in “SER REMOTE”

Table 5-8 Setting Screen

[Tips]

See “5.3.8 Mode Selection screen” for details on “SER REMOTE” (*1).

*1

.

5.3 Operation Screen HRZ Series

HRX-OM-I051

5-7

No.

Item

Setting

1

MODE

LOCAL

System start/stop and TEMP SP value setting are
available only from the operation display panel.

DIO REMOTE

System start/stop is allowed only through contact
signal. TEMP SP value setting is available only from
the operation display panel.

SER REMOTE

System start/stop and TEMP SP value setting are
available only through serial RS-485 communication.

1

1 2 3

4 5 6

7

8

9

10

11

Chapter 5 System Operation

5.3.8 Mode Selection screen

Figure 5-10 Mode Selection Screen

This screen enables the selection of the communication mode. The procedures for system start/stop and TEMP SP
value setting may vary with the communication mode.
Other operations and settings are available only from the operation display panel.

Table 5-9 Mode Selection Screen

5.3.9 Initial Setting screen

Figure 5-11 Initial Setting Screen

HRZ Series 5.3 Operation Screen

HRX-OM-I051

5-8

No.

Item

Setting range

Descriptions

1

TEMP BAND

1.0 to 5.0°C *1

Allows the selection of the band width for TEMP SP.

2

TEMP
READY

10 to 480sec*1

Allows the setting of the time from TEMP PV value
reaching BAND range to TEMP READY is displayed
and put out.

3

OFFSET

-20.0 to 20.0°C *2

Calibrates variations in temperature between this
system and your system.
(See “Appendix 8.4 Offset Function” in Chapter 8 for
details.)

4

OFFSET

OFF, MODE1, MODE2,
MODE3

5

HIGH TEMP

HRZ□□□-L□: -20 to 45°C
HRZ□□□-L2 : 10 to 45°C
HRZ□□□-H□: 20 to 93°C
HRZ□□□-W□: -20 to 93°C

Issues an alarm of “Reservoir High Temp WRN” if the

circulating fluid exceeds the set temperature.

6

LOW FLOW
0, 15 to 40 LPM

0, 4 to 10.6 GPM

Issues an alarm of “Return Low Flow WRN” if the

circulating fluid does not reach the set flow rate.
Lift this alarm if the selection is “0”.
Even if the values from 1 to 14LPM (0.3 to 3.7GPM)
are input, the setting value make 15LPM (4.0GPM).
Even if the values from 1 to 7LPM (0.3 to 1.8GPM) are
input, the setting value make 8LPM (2.1GPM).
(Only for HRZ010-W*S)

0, 8 to 40 LPM
0, 2.1 to 10.6 GPM
(Only for HRZ010-W*S)

7

FLOW UNIT

LPM, GPM

Allows the selection of the unit of flow rate.

8

PRESS UNIT

MPa, PSI

Allows the selection of the unit of pressure.

9

SLAVE
ADRS.

1 to 16CH

Allows the selection of the slave address for serial
RS-485 communication.

10

OUT

N/A
ALARM1 to 25

Allows the selection of alarm signals for contact signal.
(See Appendix 8.1.3 Alarm signal selection” for
details.)

11

E_OUT

TEMP READY,
AUTO PURGE*1

Allows the selection of EVENTOutput.
(See Appendix 8.1.2 Communication specification” for
details.)

Chapter 5 System Operation

This screen enables the setting of set values.

Table 5-10 Initial Setting Screen

[Tips]

Valid during option setting with “5.3.11 Option screen“ on page 5-9.
See “Appendix 8.5 BAND/READ” in Chapter 8 on page 8-21 on
BAND/READY function (*1).
TEMP SP+OFFSET value (*2) should be in the TEMP SP setting range
defined in “Table 5-8 Setting Screen” on page 5-6.

5.3 Operation Screen HRZ Series

5-9

5.3.10 Maintenance screen

No.

Item

Setting

1

VALVE
OPEN

The solenoid valve is opened forcefully.

CLOSE

The solenoid valve is closed forcefully.

No.

Item

Setting

1

CUSTOM DIO

ON / OFF

Allows the selection of Valid / invalid.
(See” Communication specifications” for details.)

2

DI CONTROL

ON / OFF

“ON” is selected when shipped out of the factory for customer who

purchased recirculating fluid electric resistance control
function(optional). Do not change the set value.

3

AUTO PURGE

ON / OFF

“ON” is selected when shipped out of the factory for the customer who

purchased recirculating fluid automatic collection function(optional).
Do not change the set value.

4

TEMP READY

ON / OFF

Allows the selection of valid / invalid of BAND / READY function.
This becomes valid after turning off the power, then supply the power
again.

5

RS232C_COMM

ON / OFF

“OFF” is selected when shipped out of the factory. Do not change the
set value.

1

4

1

2

3

5

HRX-OM-I051

Chapter 5 System Operation

[Tips]

Available only if a solenoid value (optional for DI control kit) is provided.

5.3.11 Option screen

Figure 5-12 Maintenance Screen

Table 5-11 Maintenance Screen

Figure 5-13 Option Screen

Table 5-12 Option Screen

HRZ Series 5.3 Operation Screen

HRX-OM-I051

5-10

No.

Message

Descriptions

1

Initialize Mode (RESERVOIR)

The circulating fluid flows in this system through the
internal pump when turning ON the system. System
operation is disabled if this message is displayed.

Initialize Mode (CONTROL VALVE)

Positioning of the electronic expansion valve is performed
when turning ON the system. System operation is
disabled if this message is displayed.

Pump Up Mode, Running Start

If your piping is supplied with an insufficient amount of the
circulating fluid at system startup, the circulating pump in
this system is activated (repeating ON/OFF) to replenish
piping with the circulating fluid.
Continuous operation is initiated once piping is
replenished with the fluid.

CPRSR Down Mode, Running Stop

Compressor operation remains for approx. 30 seconds
after circulating pump stop for the protection of the
compressor at the time of sytem shutdown.

Stopping Internal Pump

The internal pump is at halt for a given length of time for
protection of the pump.
This message turns off after a lapse of the specified time.

1

Chapter 5 System Operation

5.3.12 Alarm Display screen

Figure 5-14 Alarm Display Screen

In the event of an error in this system, the current screen is switched to the Alarm Display screen to display the
relevant alarm code. and message.
The Alarm Display screen is displayed only if an error is raised.
See section 6.2 “Troubleshooting” in “Chapter 6 Error Message and Troubleshooting” for alarm numbers and
messages.

5.3.13 System Information screen

Figure 5-15 System Information Screen

The System Information screen, as shown above, may be displayed upon system start/stop.

Table 5-13 System Information Screen

5.3 Operation Screen HRZ Series

HRX-OM-I051

5-11

Chapter 5 System Operation

5.4 Examples of System Operation

5.4.1 Example 1: Circulating fluid set temperature is changed from

23.0°C to 34.1°C.

Figure 5-16 Change of Set Temperature from 25.0°C to 34.1°C

1. Press the [SEL] key to display the “Menu

screen 1”.

2. With the use of the arrow keys ([▲], [▼]),

move the cursor to “1. SETTING” and

press the [ENT] key.

The “Setting screen” is displayed.

3. Press the [ENT] key.

The cursor is now appear on the current value for
TEMP SP, which enables change of the
temperature set value.

Figure 5-17 Menu Screen 1

Figure 5-18 Setting Screen

Figure 5-19 Setting Screen: Cursor Display

HRZ Series 5.4 Examples of System Operation

HRX-OM-I051

5-12

Chapter 5 System Operation

4. Use the arrow keys ([▲], [▼], [ ]) to

change the temperature to 34.1°C.

[▲] key: Used to add one value on which the cursor is placed.
[▼] key: Used to subtract one value on which the cursor is

placed.
[ ] key: Used to move the cursor to the right.

[Tips]

To cancel a selection, press the [SEL] key, not [ENT] key. With the press of
the [SEL] key, the cancellation takes effect and the screen is switched to the
“Menu screen 1”.

5. Press the [ENT] key with a new set

temperature (34.1°C) entered.

Figure 5-20 Setting Screen: Change of Set Value

The cursor goes out, and the setting takes effect.

Figure 5-21 Setting Screen: Setting Confirmation

6. Press the [SEL] key to display the “Menu screen 1”.

[Tips]

FLOW SP is only indicated on HRZ010-W*S and setting is available.

5.4 Examples of System Operation HRZ Series

HRX-OM-I051

5-13

Chapter 5 System Operation

5.4.2 Example 2: Communication mode is switched from “DIO
REMOTE” to “LOCAL”.

Figure 5-22 Switching of Communication Mode from “DIO REMOTE” to “LOCAL”

1. Press the [SEL] key to display the “Menu

screen 1”.

2. With the use of the arrow keys ([▲], [▼]),

move the cursor to “2. REMOTE/LOCAL”

and press the [ENT] key.

The “Mode Selection screen” is displayed.

The name of the current mode flashes.



3. Use the arrow keys ([▲], [▼]) to select

“LOCAL”.

Figure 5-23 Menu Screen 1

Figure 5-24 Mode Selection Screen: DIO REMOTE

Figure 5-25 Mode Selection Screen: LOCAL

4. Press the [ENT] key.

The mode name stop flashing, and the selection
takes effect.

Figure 5-26 Mode Selection Screen: Setting Confirmation

[Tips]

To cancel a selection, press the [SEL] key, not [ENT] key. With the press of
the [SEL] key, the cancellation takes effect and the screen is switched to the
“Menu screen 1”.

5. Press the [SEL] key to display the “Menu screen 1”.

HRZ Series 5.4 Examples of System Operation

HRX-OM-I051

5-14

Chapter 5 System Operation

5.4.3 Example 3: Alarm signal of contact signal is changed from
“N/A” to “ALARM1”.

Figure 5-27 Change of Alarm Signal of Contact signal from “N/A” to “ALARM1”

1. Press the [SEL] key to display the “Menu

screen 1”.

2. With the use of the arrow keys ([▲], [▼]),

move the cursor to “3. INITIAL SET” and

press the [ENT] key.

The “Initial Setting screen 1” is displayed.

Figure 5-28 Menu Screen 1

Figure 5-29 Initial Setting Screen 1

3. Use the arrow keys ([▲], [▼]) to display

the “Initial Setting screen 3”, which

prompts “OUT” to flash.

The name of the current mode flashes.



Figure 5-30 Initial Setting Screen 3: OUT

4. Press the [ENT] key.

Only the current mode flashes.

Figure 5-31 Initial Setting Screen 3: N/A

5.4 Examples of System Operation HRZ Series

5-15

5. Use the arrow keys ([▲], [▼]) to select

“ALARM1”.

6. Press the [ENT] key.

“OUT” flashes again, and the selection takes
effect.

Figure 5-33 Initial Setting Screen 3: Setting Confirmation (OUT)

[Tips]

HRX-OM-I051

Chapter 5 System Operation

Figure 5-32 Initial Setting Screen 3: ALARM1

To cancel a selection, press the [SEL] key, not [ENT] key. With the press of
the [SEL] key, the cancellation takes effect and the screen is switched to the
“Menu screen 1”.

7. Press the [SEL] key to display the “Menu screen 1”.

HRZ Series 5.4 Examples of System Operation

HRX-OM-I051

5-16

Chapter 5 System Operation

5.4 Examples of System Operation HRZ Series

Chapter 6 Error Message and Troubleshooting

6-1

LCD screen

“ALARM” lamp is

ON.

Alarm Display screen (Alarm No. and alarm message)

Chapter 6 Error Message and

Troubleshooting

6.1 Error Message

The following are to be performed in the event of an error in this system.

The “ALARM” lamp comes on.



Alarm buzzer comes on.



The “Alarm Display screen” is displayed on the LCD screen.



Error signal is issued through external communication.



(See section 8.1.2 “Communication specification” in Chapter 8 Appendix for
details.)

This system is brought to a stop forcefully according to error types.



HRX-OM-I051

HRZ Series 6.1 Error Message

Figure 6-1 Error Occurrence

HRX-OM-I051

6-2

Code

Error message

System

condition

Cause

Remedies

01

Water Leak
Detect FLT

Stop

The fluid is pooled at the base
of this system.

Check for fluid leak.

02

Incorrect Phase
Error FLT

Stop

The power phase rotation is
wrong.

Check that a proper connection
is established between the
power cable and main breaker
of this system.

03

RFGT High
Press FLT

Stop

The pressure of the
refrigerant circuit exceeded
the specified value.

Check that facility water is
being supplied to this system.

04

CPRSR
Overheat FLT

Stop

The temperature in the
compressor was excessive.

Check that facility water is
being supplied to this system.

05

Reservoir Low
Level FLT

Stop

An insufficient amount of the
circulating fluid is observed in
the tank.

Replenish the circulating fluid.

06

Reservoir Low
Level WRN

Continued

An insufficient amount of the
circulating fluid is observed in
the tank.

Replenish the circulating fluid.

07

Reservoir High
Level WRN

Continued

An excessive amount of the
circulating fluid is observed in
the tank.

Drain the circulating fluid.

08

Temp. Fuse
Cutout FLT

Stop

The circulating fluid tank was

raised in temperature.

Check the load specification.
Replacement of the thermal
fuse is required.
Call the supplier for service.

09

Reservoir High
Temp. FLT

Stop

The temperature of the
circulating fluid exceeded the
specified value.

Check the load specification.

11

Reservoir High
Temp. WRN

Continued

The temperature of the
circulating fluid exceeded
your specified value.

Reset the setting temperature.

Chapter 6 Error Message and Troubleshooting

6.2 Troubleshooting

The procedure for error recovery varies with alarm types.

Alarm Code.01 to 20, 22, 24, 25:



Eliminate the error cause. Press the [RESET] key on the operation display panel
or power cycle the main breaker to enable error recovery to take effect.

Alarm Code.21, 28:



Eliminate the error cause, and power cycle the main breaker to enable error
recovery to take effect.

Alarm Code.23, 26, 27:



Automatic error recovery is implemented upon elimination of the error.

Alarm Code.24, 26, 27:



This is an alarm for accessories (optional).
No alarm of this type is issued if the system is outfitted with no accessories.

Alarm Code.25, 28:



This alarm is only for HRZ010-W*S.

Table 6-1 Troubleshooting (1/2)

6.2 Troubleshooting HRZ Series

Chapter 6 Error Message and Troubleshooting

6-3

Code

Error message

System

condition

Cause

Remedies

12

Return Low Flow
FLT

Stop

The flow rate of the circulating
fluid falls short of 6L/min.

Check that the external valve is
opened.

Prepare a thicker external pipe
or install bypass piping.

13

Return Low Flow
WRN

Continued

The flow rate in this system
falls short of your specified
value.

Reset the setting flow rate.

14

Heater Breaker
Trip FLT

Stop

The breaker for the heater
power line was tripped.

Check that the power supply to
this system is compliant with the
specification.

15

Pump Breaker
Trip FLT

Stop

The breaker for the circulating
pump power line was tripped.

Check that the power supply to
this system is compliant with the
specification.

16

CPRSR Breaker
Trip FLT

Stop

The breaker for the
compressor power line was
tripped.

Check that the power supply to
this system is compliant with the
specification.

17

Interlock Fuse
Cutout FLT

Stop

An overcurrent was passed
through the control circuit.

Contact the system supplier for
request of inspection and repair.

18

DC Power Fuse
Cutout WRN

Continued

An overcurrent was passed
through the solenoid valve
(optional).

Contact the system supplier for
request of inspection and repair.

19

FAN Motor Stop
WRN

Continued

The ventilating fan came to a
stop.

Check that the air vent on the
back of the system is not blocked
off.

20

Internal Pump
Time Out WRN

Continued

The internal pump was under
conditions of continuous
operation over a specified time.

Check for fluid leak from
circulating fluid piping in your
system.

21

Controller Error
FLT

Stop

An error was detected in the
control system.

Contact the system supplier for
request of inspection and repair.

22

Memory Data
Error FLT

Stop

An error was detected in data
stored in the controller of this
system.

Contact the system supplier for
request of inspection and repair.

23

Communication
Error WRN

Continued

An interruption of serial
communication occurred
between this system and your
system.

Check that a signal is being
issued from your system.

Check for disconnection of the
communication connector from
this system.

24

DI Low Level
WRN

Continued

Electical resistivity of the
circulating fluid falls short of
your specified value.

Lower the setting for resistivity.

Replacement of the DI filter is
required.

25

Pump Inverter
Error FLT

Stop

An error was detected in the
system inverter.

Contact the system supplier for
request of inspection and repair.

26

DNET Comm.
Error WRN

Continued

DeviceNet communication was
disconnected between this
system and the customer’s
system.

Check that a signal is being
issued from your system.

Check for disconnection of the
communication connector from
this system.

27

DNET Comm.
Erroe FLT

Stop

An error was detected in the
DeviceNet communication
system.

Contact the system supplier for
request of inspection and repair.

28

CPRSR INV Error
FLT

Stop

An error was detected in the
inverter for compressor.

Contact the system supplier for
request of inspection and repair.

Table 6-1 Troubleshooting (2/2)

HRX-OM-I051

HRZ Series 6.2 Troubleshooting

HRX-OM-I051

6-4

Chapter 6 Error Message and Troubleshooting

6.2 Troubleshooting HRZ Series

Chapter 7 System Maintenance

7-1

Substance

Facility water

spec.

Circulating water

spec.

Standards

pH (25°C)

6.5 to 8.2

6.0 to 8.0

Electrical conductivity (25°C) (µs/cm)
*Circulating fluid 1 to 500

100 to 800

0.5 to 300

Chloride ion (mgCl-/L)

Max. 200

Max.50

Sulfate ion (mgSO

4

2-

/L)

Max.200

Max.50

Acid consumption (pH4.8)
(mgCaCO3/L)

Max.100

Max.50

Total hardness (mgCaCO3/L)

Max.200

Max.70

Calcium hardness (mgCaCO3/L)

Max.150

Max.50

Ionic silica (mgSiO2/L)

Max.50

Max.30

Iron (mgFe/L)

Max.1.0

Max.0.3

Copper (mgCu/L)

Max.0.3

Max.0.1

Sulfide ion (mgS2-/L)

Not be detected

Ammonium ion (mgNH

4

+

/L)

Max.1.0

Max.0.1

Residual chlorine (mgCl/L)

Max.0.3

Max.0.3

Free carbon dioxide (mgCO2/L)

Max.4.0

Max.4.0

Filtering (µm)

Max.5

Only designated circulating fluid is permitted to use for this system.
Potential system failure and fluid leak may occur if disregarded, which
results in electric shock, ground fault, and freeze.
Be sure to use fresh water (tap water) compliant with water quality
standards in the table below for ethylene glycol aqueous solution and
facility water.

If the periodic inspection finds a nonconforming substance in the
facility water, clean the facility water circuit and recheck the quality of
the facility water.

Chapter 7 System Maintenance

7.1 Water Quality Management

Table 7-1 Water Quality Standards for Fresh Water (Tap Water)

HRX-OM-I051

* According to the Water quality guideline for refrigeration air-conditioning equipment: JRA-GL-02-1994

HRZ Series 7.1 Water Quality Management

HRX-OM-I051

7-2

Inspection item

Inspection method

Installation
condition

Check of the condition of
system installation

No heavy object is placed on this system. This
system should not be subjected to external force.

Temperature and humidity fall within the specified
range.

Fluid leak

Check of the piping
connector section

No leak of facility water and circulating fluid from
the piping connector section

Fluid level

Reading of the level of the
circulating fluid

Level falls within the circulating fluid specified level
between “High” and “Low”.

Operation
display panel

Display check

Clarity of letters and numbers on the LCD display
should be assured.

Function check

[RUN] lamp is ON.

Circulating fluid
temperature

Confirm the reading on
the LCD screen

Temperature should be within setpoint.

Refrigerant
pressure

Reading of the refrigerant
pressure gauge

Pressure falls within the 0.3 to 1.0Mpa(45 to 145PSI)
range.(HRZ00*-L2)
Pressure falls within the 0.5 to 2.0Mpa(75 to 290PSI)
range.(All other Models)

Discharge
pressure of
circulating fluid

Confirm the reading on
the LCD screen

Reading should not have deviated much from last
inspection.

Circulating fluid
flow rate

Confirm the reading on
the LCD screen

Reading should not have deviated much from last
inspection.

Operating
condition

Operating condition check

No abnormal noise, vibration, odor and smoke

Facility water

Check of the facility
water

Temperature, flow rate and pressure fall within the
specified range.

Circulating fluid
supply port cap

Check by providing
manual tightening

No looseness

 Do not touch any electrical parts with wet hands.

Keep wet hands away from electrical parts. Potential electric shock can
occur if disregarded.

 Keep this system from water. Potential electric shock or fire can occur if

disregarded.

If the inspection and cleaning require the removal of the panel, be sure
to re-attach the panel upon completion. Potential personal injury or
electric shock may occur if operated with the panel opened or
removed.

Chapter 7 System Maintenance

7.2 Inspection and Cleaning

7.2.1 Daily inspection

Table 7-2 Daily Inspection

7.2 Inspection and Cleaning HRZ Series

7-3

7.2.2 Quarterly inspection

Inspection item

Inspection method

Circulating fluid
Circulating fluid is to be drained for check.

Fluid should be free of particles, moisture*1 and foreign
substances.

For ethylene glycol solution, confirm that the concentration falls
within the specified range.

Recommended to replace the water.

Facility water

Facility water quality should fall within the standards specified.

Ventilation hole and
electrical parts

No particles and dust should be present.

Quarterly inspection requires an advance lockout/tagout of this
system. See section 1.5.3 “Lockout/Tagout” in “Chapter 1 Safety” for
details.

Moisture trapped in the fluorinated fluid (*1) freezes in the heat
exchanger element and piping, which may lead to system failure.

Table 7-3 Quarterly Inspection

HRX-OM-I051

Chapter 7 System Maintenance

7.3 Storage

The following should be performed for system long-term storage.

1. Drain the circulating fluid. See section 7.3.1 “Draining of circulating fluid

out of tank” for details.

2. Drain the facility water. See section 7.3.2 “Draining of facility water” for

details.

3. Cover the system with a plastic sheet for storage.

HRZ Series 7.3 Storage

HRX-OM-I051

7-4

Max. 10cm

Drain port

Container for circulating
fluid recovery

Drain port

Circulating fluid fill port cap

Circulating fluid return

Figure 7-1 Container for Circulating Fluid Recovery

 Use the clean container for circulating fluid recovery. Reuse of the

recovered circulating fluid with contaminated will cause insufficient
cooling and system failure

 Be sure to wait until the circulating fluid obtains room temperature for its

draining. Potential burns and dew intrusion may occur if disregarded.

If the recovered circulating fluid is contaminated by foreign
substances, completely remove them. Do not reuse comtaminated
fluid.
Potential insufficient cooling, system failure and froth in the
circulating fluid may occur if disregarded.

Recovered circulating fluid must be sealed in a container to prevent
contamination from moisture or foreign substances.
Stored in a cool, dark place.
Keep it from flame.

Chapter 7 System Maintenance

7.3.1 Draining of circulating fluid out of tank

1. Prepare the container for circulating fluid recovery at the back of this system.

2. Connect the drain hoses to the main and

sub tank drain ports each. Insert the tip
of the hose into the container.

Prepare a drain hose (Rc3/8-diameter) on your



responsibility.

3. Remove the cap of the circulating fluid fill port.

4. Open the valves of the main and sub tank drain ports to drain the circulating fluid.

5. Apply air purge from the the circulating fluid return to push the circulating fluid remaining in

the heat exchange back in the tank and drain it.

7.3 Storage HRZ Series

HRX-OM-I051

7-5

Plug

Circulating
fluid supply

Facility water outlet

Circulating fluid return

Plug

Rear

Drain pan port

Plug

Facility water inlet

Main tank drain port

Sub tank drain port

Figure 7-2 Plug Attachment

Figure 7-3 Drain Pan Attachment

Be sure to drain the facility water only when it is at room temperature.
Trapped fluid inside the system can still be hot. Potential burns can
occur if disregarded.

Rear

Drain pan

Facility water outlet

Facility water inlet

Max. 10cm

Chapter 7 System Maintenance

6. Upon completion of fluid draining, close the valves of the main and sub tank drain ports.

7. Add plugs to seal off ports on the rear of

this system.

See section 7.3.2 “Draining of facility water”



for plug attachment.

7.3.2 Draining of facility water

1. Place the drain pan underneath the

piping connections on the rear of this
system.

A 7L-capacity or bigger drain pan is required.



HRZ Series 7.3 Storage

HRX-OM-I051

7-6

Part

Recommended replacement cycle

Internal pump

Every 3 yrs

Circulating pump

Every 3 yrs

Ventilating fan

Every 3 yrs

Inverter Coolong Fan

Every 3 yrs

Chapter 7 System Maintenance

2. Remove facility water piping.

Remove the joints such as unions if present.



3. Drain the facility water using the facility water inlet port.

7.4 Periodic Replacement Parts

Replacement of consumables listed in the following table is recommended.
Contact the system supplier for request of part replacement.

Table 7-4 Periodic Replacement Part List

* Note: A replacement cycle may vary with your usage condition.

7.4 Periodic Replacement Parts HRZ Series

8-1

Chapter 8 Appendix

Model

HRZ001-L

HRZ002-L

HRZ004-L

HRZ008-L

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

1.0 (At -10°C)

2.0 (At -10°C)

4.0 (At -10°C)

8.0 (At -10°C)

Operating temperature range

°C

-20 to 40

Temperature stability

°C

±0.1*2

Circulating fluid

Galden® HT135

*3

FluorinertTM FC-3283*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.45 /0.65 (At 20L/min)

(65 / 95 [PSIG] At 5.3[gal/min])

0.65 /0.95

(At 30L/min)

(94 / 138 [PSIG]

At 8[gal/min])

Main Tank capacity*5

L

Approx.15 (4 [gal])

Approx.22

(5.8 [gal])

Sub Tank capacity*6

L

Approx.16 (4.2 [gal])

Approx.17

(4.5[gal])

Circulating fluid port

Rc 3/4

Facility water

°C /MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

5/5

(1.3/1.3[gal/min])

6/6

(1.6/1.6[gal/min])

15/22

(4.0/5.8[gal/min])

18/23

(4.8/6.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size A 30

60

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40 [inch])

W415D1080

H1075

(W16.34xD42.52

xH42.32 [inch])

Weight *8

kg

165 (364 [lbs])

175 (386 [lbs])

275 (606 [lbs])

Communication

Serial RS-485 (Dsub-9pin), Contact signal (Dsub-25pin)

8.1 Specification

8.1.1 System specification

 Specification for fluorinated fluid (low temperature)

Table 8-1 Specification for Fluorinated Fluid (Low Temperature)

HRX-OM-I051

Chapter 8 Appendix

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a

disturbance to flow rate is observed.
*3: Galden® is a registered trademark of Solvay Solexis, and Fluorinert TM is a trademark of U.S. 3M.
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

HRZ Series 8.1 Specification

HRX-OM-I051

8-2

Model

HRZ001-H

HRZ002-H

HRZ004-H

HRZ008-H

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

1.0 (At 20°C)

2.0 (At 20°C)

4.0 (At 20°C)

8.0 (At 20°C)

Operating temperature range

°C

20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Galden® HT200

*3

FluorinertTM FC-40*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.40 /0.60 (At 20L/min)

(58 / 87 [PSIG] At 5.3[gal/min])

0.45 /0.65 (At 20L/min)

(65 / 94 [PSIG] At 5.3[gal/min])

Main Tank capacity*5

L

Approx.12 (3.2 [gal])

Approx.15 (4 [gal])

Sub Tank capacity

*6

L

Approx.15 (4 [gal])

Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

3/4

(0.8/1.1[gal/min])

5/6

(1.3/1.6[gal/min])

9/10

(2.4/2.6[gal/min])

13/14

(3.4/3.7[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

20

30

Dimensions*7

mm

W380D870H860

(W14.96xD34.25xH33.86 [inch])

W380D870H950

(W14.96xD34.25xH37.40 [inch])

Weight*8

kg

145 (320 [lbs])

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for fluorinated fluid (high temperature)

Table 8-2 Specification for Fluorinated Fluid (High Temperature)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a

disturbance to flow rate is observed.
*3: Galden® is a registered trademark of Solvay Solexis, and Fluorinert
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

8.1 Specification HRZ Series

TM

is a trademark of U.S. 3M.

8-3

 Specification for fluorinated fluid (wide temperature)

Model

HRZ002-W

HRZ008-W

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

2.0 (At 20°C)

8.0 (At 20°C)

Operating temperature range

°C

-20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Galden® HT135

*3

FluorinertTM FC-3283

*3

(-20 to 40°C)

Galden® HT200

*3

FluorinertTM FC-40

*3

(20 to 90°C)

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.45 /0.65 (At 20L/min)

(65 / 94 [PSIG] At 5.3[gal/min])

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

6/7

(1.6/1.8[gal/min])

13/14

(3.4/3.7[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950(W14.96xD34.25xH37.40[inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Table 8-3 Specification for Fluorinated Fluid (Wide Temperature)

HRX-OM-I051

Chapter 8 Appendix

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a

disturbance to flow rate is observed.
*3: Galden® is a registered trademark of Solvay Solexis, and Fluorinert
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

HRZ Series 8.1 Specification

TM

is a trademark of U.S. 3M.

HRX-OM-I051

8-4

Model

HRZ001-L1

HRZ002-L1

HRZ004-L1

HRZ008-L1

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

1.0 (At -10°C)

2.0 (At -10°C)

4.0 (At -10°C)

8.0 (At -10°C)

Operating temperature range

°C

-20 to 40

Temperature stability

°C

±0.1*2

Circulating fluid

Ethylene glycol solution 60%*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.25 / 0.40 (At 20L/min)

(36 / 58 [PSIG] At 5.3gal/min)

Main Tank capacity*5

L

Approx.15 (4 [gal])

Approx.22

(5.8 [gal])

Sub Tank capacity

*6

L

Approx.16 (4.2 [gal])

Approx.17

(4.5 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

5/5

(1.3/1.3[gal/min])

6/6

(1.6/1.6[gal/min])

15/22

(4.0/5.8[gal/min])

18/23

(4.8/6.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size A 30

60

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40[inch])

W415D1080

H1075

(W16.34xD42.52x

H42.32 [inch])

Weight*8

kg

165 (364 [lbs])

175

(386 [lbs])

275

(606 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for ethylene glycol solution (low temperature)

Table 8-4 Specification for Ethylene Glycol Aqueous Solution (Low Temperature)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Pure ethylene glycol needs dilution with fresh water before use.

Ethylene glycol with additives such as preservatives is NOT available.
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

8.1 Specification HRZ Series

8-5

 Specification for ethylene glycol solution (high temperature)

Model

HRZ001-H1

HRZ002-H1

HRZ004-H1

HRZ008-H1

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

1.0 (At 20°C)

2.0 (At 20°C)

4.0 (At 20°C)

8.0 (At 20°C)

Operating temperature range

°C

20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Ethylene glycol aqueous solution 60%*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.25 / 0.35 (At 20L/min)

(36 / 51 [PSIG] At 5.3[gal/min])

0.25 / 0.40 (At 20L/min)

(36 / 58 [PSIG] At 5.3[gal/min])

Main Tank capacity*5

L

Approx.12 (3.2 [gal])

Approx.15 (4 [gal])

Sub Tank capacity

*6

L

Approx.15 (4 [gal])

Approx.16 (4.2[gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

3/4

(0.8/1.1[gal/min])

5/6

(1.3/1.6[gal/min])

9/10

(2.4/2.6[gal/min])

13/14

(3.4/3.7[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

20

30

Dimensions*7

mm

W380D870H860

(W14.96xD34.25xH33.86 [inch])

W380D870H950

(W14.96xD34.25xH37.40 [inch])

Weight*8

kg

145 (320 [lbs])

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin), Contact signal (Dsub-25pin)

Table 8-5 Specification for Ethylene Glycol Aqueous Solution (High Temperature)

HRX-OM-I051

Chapter 8 Appendix

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Pure ethylene glycol needs dilution with fresh water before use.

Ethylene glycol with additives such as preservatives is NOT available.
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

HRZ Series 8.1 Specification

HRX-OM-I051

8-6

Model

HRZ002-W1

HRZ008-W1

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

2.0 (At 20°C)

8.0 (At 20°C)

Operating temperature range

°C

-20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Ethylene glycol aqueous solution 60%*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

0.25 / 0.40 (At 20L/min)

(36 / 58 [PSIG] At 5.3[gal/min])

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

5/7

(1.3/1.8[gal/min])

13/14

(3.4/3.7[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950(W14.96xD34.25xH37.40 [inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for ethylene glycol solution (wide temperature)

Table 8-6 Specification for Ethylene Glycol Aqueous Solution (Wide Temperature)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Pure ethylene glycol needs dilution with fresh water before use.

Ethylene glycol with additives such as preservatives is NOT available.
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

8.1 Specification HRZ Series

8-7

 Specification for water (low temperature)

Model

HRZ001-L2

HRZ002-L2

HRZ004-L2

HRZ008-L2

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

1.0 (At 20°C)

2.0 (At 20°C)

4.0 (At 20°C)

8.0 (At 20°C)

Operating temperature range

°C

10 to 40

Temperature stability

°C

±0.1*2

Circulating fluid

Pure water / DI water*3

(No intrusion of foreign body)

Refrigerant

R134a(HFC) (CFC Free),

(GWP:1430)

Pump capacity*4

(50Hz/60Hz)

MPa

0.25 / 0.38 (At 20L/min)

(36 / 55 [PSIG] At 5.3gal/min)

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 25 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

5/5

(1.3/1.3[gal/min])

6/6

(1.6/1.6[gal/min])

15/22

(4.0/5.8[gal/min])

18/23

(4.8/6.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40[inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Table 8-7 Specification for water (Low Temperature)

HRX-OM-I051

Chapter 8 Appendix

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Water quality of The Japan Refrigeration and Air Conditioning Industry Association (JRA

GL-02-1994/Recirculating fluid of Cooling water system) shall be satisfied (See “7.1 Water Quality

Management’)

Additives such as preservative is NOT available. It not only deteriorates the performance, but also lead
to cause failure.

*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C

*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

HRZ Series 8.1 Specification

HRX-OM-I051

8-8

Model

HRZ010-WS

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

10.0 (At 20°C)

Operating temperature range

°C

-20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Galden® HT135

*3

FluorinertTM FC-3283

*3

(-20 to 40°C)

Galden® HT200

*3

FluorinertTM FC-40

*3

(20 to 90°C)

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

Max. 0.72 (At 20L/min)

(104 [PSIG] At 5.3gal/min) with flow control function by VFD

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 30 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

15/15 (4.0/4.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40[inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for fluorinated fluid (wide temperature with Inverter)

Table 8-8 Specification for Fluorinated Fluid (Wide Temperature with Inverter)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a

disturbance to flow rate is observed.
*3: Galden® is a registered trademark of Solvay Solexis, and Fluorinert
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

8.1 Specification HRZ Series

TM

is a trademark of U.S. 3M.

HRX-OM-I051

8-9

Model

HRZ010-W1S

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

10.0 (At 20°C)

Operating temperature range

°C

-20 to 90

Temperature stability

°C

±0.1*2

Circulating fluid

Ethylene glycol aqueous solution 60%*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

Max. 0.40 (At 20L/min)

(58[PSIG] At 5.3gal/min) with flow control function by VFD

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 30 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

15/15 (4.0/4.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40[inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for ethylene glycol solution (low temperature with Inverter)

Table 8-9 Specification for ethylene glycol solution (low temperature with Inverter)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Pure ethylene glycol needs dilution with fresh water before use.

Ethylene glycol with additives such as preservatives is NOT available.
*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C
*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

HRZ Series 8.1 Specification

HRX-OM-I051

8-10

Model

HRZ010-W2S

Cooling method

Water cooled refrigerant

Cooling capacity*1

(50Hz/60Hz)

kW

9.0 (At 20°C)

Operating temperature range

°C

10 to 60

Temperature stability

°C

±0.1*2

Circulating fluid

Pure water / DI water*3

(No intrusion of foreign body)

Refrigerant

R404A(HFC) (CFC Free),

(GWP:3922)

Pump capacity*4

(50Hz/60Hz)

MPa

Max. 0.38 (At 20L/min)

(55[PSIG] At 5.3gal/min) with flow control function by VFD

Main Tank capacity*5 L Approx.15 (4 [gal])

Sub Tank capacity

*6

L Approx.16 (4.2 [gal])

Circulating fluid port

Rc 3/4

Facility water

°C/MPa

10 to 30 / 0.3 to 0.7 (45 to 100 [PSIG])

Required flow of facility water

*9

(50Hz/60Hz)

L/min

15/15 (4.0/4.0[gal/min])

Facility water port

Rc 1/2

Power supply

3-phase 50/60Hz AC200/200 to 208V±10%

Main breaker size

A

30

Dimensions*7

mm

W380D870H950

(W14.96xD34.25xH37.40[inch])

Weight*8

kg

165 (364 [lbs])

Communication

Serial RS-485 (Dsub-9pin) , Contact signal (Dsub-25pin)

Chapter 8 Appendix

 Specification for water (low temperature with Inverter)

Table 8-10 Specification for water (low temperature with Inverter)

*1: The capacity is derived under the conditions that the facility water temp. is 25°C and that the circulating fluid flow

rate is obtained at a specified flow rate of pump capacity. Applied to 50 / 60Hz.

*2: This is a system output temperature, with flow rate defined in pump capacity secured, when stabilized with no

disturbance. Its upper limit may be violated if an insufficient amount of the circulating fluid is present or a
disturbance to flow rate is observed.

*3: Water quality of The Japan Refrigeration and Air Conditioning Industry Association (JRA

GL-02-1994/Recirculating fluid of Cooling water system) shall be satisfied (See “7.1 Water Quality

Management’)

Additives such as preservative is NOT available. It not only deteriorates the performance, but also lead
to cause failure.

*4: The capacity is derived at the Outlet of this system when the circulating fluid temp. is at 20°C.
*5: This is a minimum amount of the fluid for operation of the Thermo Chiller outfitted with internal piping and heat

exchanger in this system. Circulating fluid temp.: 20°C

*6: This is an auxiliary space with a main tank capacity excluded. Available for circulating fluid recovery from external

piping and backup supply.
*7: This is the dimensions of panels, which is derived without protrusions such as a breaker handle.
*8: This is the mass of the system when it contains no circulating fluid.
*9: Facility water temp. is 25°C. There is required flow when adding load described on cooling capacity.

8.1 Specification HRZ Series

8-11

8.1.2 Communication specification

Item

Specification

Connector No.

P1

Connector type (this system)

D-sub25P female connector

Input signal

Insulation type

Photocoupler

Rated input voltage

DC24V

Used voltage range

DC 21.6V to 26.4V

Rated input current

5mA TYP

Input impedance

4.7k

Open-collector

output signal

Insulation type

Photocoupler

Rated load voltage

DC24V

Used load voltage

range

DC 21.6V to 26.4V

Max. load current

80mA

Leakage current

Max. 0.1mA

Surge protection

Diode

Contact output

signal (Alarm)

Rated load voltage

Max. AC48V/ Max. DC24V

Max. load current

AC/DC 500mA (resistance load)

Contact output

signal (EMO)

Rated load voltage

Max. AC48V/ Max. DC24V

Max. load current

AC/DC 800mA (resistance load, inductive load)

Circuit block diagram

Start/Stop signal

Operating condition signal

Warning signal

Fault signal

Remote signal

This system Your system

2

15

14

1

4.7kΩ

EMO switch

Internal

circuit

INT DC24V

INT 24COM

3

13
25

18

5

20

7

19

6

Alarm signal

EMO signal

Event signal

8

INT 24COM

This section provides the general outline of communications utilized in this system.

For detail specification, we provide a separate system manual “Communication

Specification”, which is available through your local distributor.

 Contact signal

Table 8-11 Contact Signal

HRX-OM-I051

Chapter 8 Appendix

HRZ Series 8.1 Specification

HRX-OM-I051

8-12

Item

Specification

Connector No.

P2

Connector type (this system)

D-sub9P female connector

Standard

EIA RS485

Protocol

Modicon Modbus

Circuit block diagram

Internal

circuit

This system Your system

5

SD+
SD-

SG

7

2

Chapter 8 Appendix

 Serial RS-485

Table 8-12 Serial RS-485

8.1 Specification HRZ Series

8-13

8.1.3 Alarm signal selection

Setting

Alarm

Alarm

N/A

Alarm signal remains ON (closed) under normal circumstances.

-

Alarm1

Water Leak Detect FLT

01

Alarm2

Incorrect Phase Error FLT

02

Alarm3

RFGT High Press FLT

03

Alarm4

CPRSR Overheat FLT

04

Alarm5

Reservoir Low Level FLT

05

Alarm6

Reservoir Low Level WRN

06

Alarm7

Reservoir High Level WRN

07

Alarm8

Temp. Fuse Cutout FLT

08

Alarm9

Reservoir High Temp. FLT

09

Alarm10*1

-

10

Alarm11

Reservoir High Temp. WRN

11

Alarm12

Return Low Flow FLT

12

Alarm13

Return Low Flow WRN

13

Alarm14

Heater Breaker Trip FLT

14

Alarm15

Pump Breaker Trip FLT

15

Alarm16

CPRSR Breaker Trip FLT

16

Alarm17

Interlock Fuse Cutout FLT

17

Alarm18

DC Power Fuse Cutout WRN

18

Alarm19

FAN Motor Stop WRN

19

Alarm20

Internal Pump Time Out WRN

20

Alarm21

Controller Error FLT

21

Alarm22

Memory Data Error FLT

22

Alarm23

Communication Error WRN

23

Alarm24*2

DI Low Level WRN

24

Alarm25*3

Pump Inverter Error FLT

25

Alarm26*2

DNET Comm. Error WRN

26

Alarm27*2

DNET Comm. Error FLT

27

Alarm28*3

CPRSR Inverter Error FLT

28

User can designate one alarm signal for contact signal. See section 5.3.9 “Initial
Setting screen” for signal selecting.
The following table presents the setting-alarm relationship. The alarm signal is
turned OFF if the designated alarm detected. (Alarm signal is ON if no alarm is
detected.)

Table 8-13 Alarm signal selection

HRX-OM-I051

Chapter 8 Appendix

 Example

With parameter “OUT” on the Initial Setting screen set to “Alarm1”, alarm “Water Leak Detect FLT” is

detected, the alarm contact signal is switched to OFF (open).

*1: Alarm10 is assigned with no alarm. The alarm signal remains ON (closed) despite Alarm10 being

specified.
*2: Alarms 24, 26 and 27 are alarms indicating accessories (optional).
*3: Alarms 25 and 28 are only for HRZ010-W*S. As other model is assigned with no alarm, the alarm

signal always remains ON (closed).

HRZ Series 8.1 Specification

HRX-OM-I051

8-14

Top

Left

Back

Front

Top

Back

Front

Chapter 8 Appendix

8.2 Outer Dimensions

8.2.1 Part 1

HRZ001-H HRZ001-H1 HRZ002-H HRZ002-H1

8.2.2 Part 2

Figure 8-1 Outer Dimensions

HRZ001-L HRZ002-L HRZ004-L HRZ008-L2
HRZ001-L1 HRZ002-L1 HRZ004-L1 HRZ008-H
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-H1
HRZ002-W HRZ004-H HRZ008-W
HRZ002-W1 HRZ004-H1 HRZ008-W1
HRZ010-WS HRZ010-W1S HRZ010-W2S

Figure 8-2 Outer Dimensions

8.2 Outer Dimensions HRZ Series

8-15

8.2.3 Part 3

Top

Left

Back

Front

HRX-OM-I051

Chapter 8 Appendix

HRZ008-L HRZ008-L1

Figure 8-3 Outer Dimensions

HRZ Series 8.2 Outer Dimensions

HRX-OM-I051

8-16

Facility water circuit

Circulating fluid circuit

Compressor

Refrigerant pressure

gauge (high)

Filter dryer

Thermal

fuse

Internal

pump

Circulating pump

Temp.

sensor

Press.

sensor

Circulating fluid level gauge

Flow sensor

Condenser

Evapo

rator

Heater

Level

switch

Level

switch

Refrigerant

pressure

switch

leakage

switch

Facility water outlet

(Rc1/2

w/ plug

)

Facility water inlet

(Rc1/2

w/ plug

)

Circulating fluid

return

(Rc3/4

w/ plug

)

Sub tank drain port

(Rc3/8

w/ plug

)

Circulating fluid supply

(Rc3/4

w/ plug

)

Main tank drain port

(Rc3/8

w/ plug

)

Drain pan port

(Rc3/8

w/ plug

)

Circulating fluid fill port

Refrigerating circuit

Electron

expansion

valve

Electron

expansion

valve

Electron

expansion

valve

Main tank

Sub tank

Water regulating valve

Water

*1

*1 : For HRZ001-H* and HRZ002-H* , electron
expansion valve is thermo static expansion valve.

Chapter 8 Appendix

8.3 Flow Chart

8.3.1 Part 1

HRZ001-H HRZ002-H HRZ004-H HRZ008-H
HRZ001-H1 HRZ002-H1 HRZ004-H1 HRZ008-H1
HRZ002-W HRZ008-W HRZ002-W1 HRZ008-W1
HRZ010-WS HRZ010-W1S HRZ010-W2S

8.3 Flow Chart HRZ Series

Figure 8-4 Flow Chart

8-17

Facility water circuit

Circulating fluid circuit

Compressor

Refrigerant pressure

gauge (high)

Filter dryer

Thermal

fuse

Internal

pump

Circulating pump

Temp.

sensor

Press.

sensor

Circulating fluid level gauge

Flow sensor

Circulating fluid return

(Rc3/4

w/ plug

)

Condenser

Evapor

ator

Sub tank drain port

(Rc3/8

w/ plug

)

Level

switch

Level

switch

Refrigerant

pressure

switch

Circulating fluid supply

(Rc3/4

w/ plug

)

Main tank drain port

(Rc3/8

w/ plug

)

Facility water outlet

(Rc1/2

w/ plug

)

Facility water inlet

(Rc1/2

w/ plug

)

leakage

switch

Drain pan port

(Rc3/8

w/ plug

)

Circulating fluid fill port

Refrigerating circuit

Electron

expansion

valve

Electron

expansion

valve

Electron

expansion

valve

Main tank

Sub tank

Refrigerant

solenoid

valve

Water regulating valve

Water

*1

Inside of dashed line,
only HRZ008-L and
HR008-L1 are
applicable.

*1 : For HRZ004-L* and HRZ008-L*, electron
expansion valve is thermo static expansion valve

8.3.2 Part 2

HRX-OM-I051

Chapter 8 Appendix

HRZ001-L HRZ002-L HRZ004-L HRZ008-L
HRZ001-L1 HRZ002-L1 HRZ004-L1 HRZ008-L1
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-L2

HRZ Series 8.3 Flow Chart

Figure 8-5 Flow Chart

HRX-OM-I051

8-18

Chapter 8 Appendix

8.4 Offset Function

Potential deviations in temperature between this system and your system may be
concerned depending on the installation environment. The offset function falling
into three types (MODE1 to 3) is assigned to calibrate deviations in temperature.
See the following descriptions for the offset function. See section 5.3.9 “Initial
Setting screen” for setting.

TEMP PV value, which is displayed on the Status screen, is output as circulating
fluid temperature data in terms of communication.

When MODE1 is selected



This mode is used to exercise temperature control to allow the discharge
temperature of the circulating fluid to be “TEMP SP value + OFFSET value”.
TEMP PV value denotes the discharge temperature of the circulating fluid.

E.g.: TEMP SP value: +20°C, OFFSET value: +2°C

 Circulating fluid discharge temp.: +22°C, TEMP PV: +22°C

When MODE2 is selected



This mode is used to exercise temperature control to allow the discharge

temperature of the circulating fluid to be “TEMP SP value”.
TEMP PV value denotes “Circulating fluid discharge temp. value + OFFSET
value”.

E.g.: TEMP SP value: +20°C, OFFSET value: +2°C

 Circulating fluid discharge temp.: +20°C, TEMP PV: +22°C

When MODE3 is selected



This mode is used to exercise temperature control to allow the discharge
temperature of the circulating fluid to be “TEMP SP value + OFFSET value”.

TEMP PV value denotes “Circulating fluid discharge temp. value - OFFSET
value”.

E.g.: TEMP SP value: +20°C, OFFSET value: +2°C

 Circulating fluid discharge temp.: +20°C, TEMP PV: +20°C

When OFF is selected



If no mode is selected, temperature control is conducted to allow the discharge
temperature of the circulating fluid to be “TEMP SP value”.

8.4 Offset Function HRZ Series

8-19

8.4.1 Example of offset function

1

℃

This system

Your system

Discharge temp.:

31

℃

Circulating fluid temp. in

your system: 30

℃

TEMP PV 31

℃

TEMP SP 30

℃

OFFSET 1

℃

External communication

Communication data

TEMP PV 31

℃

TEMP PV

31

℃

Heat dissipation:
1℃

This system

Your system

Discharge temp.:

30

℃

Circulating fluid temp. in

your system: 29

℃

TEMP PV 30

℃

TEMP SP 30

℃

External communication

Communication data

TEMP PV 30

℃

Heat dissipation:

When the discharge temperature of the circulating fluid is at 30°C, heat is
dissipated by 1°C to allow the circulating fluid in your system to be 29°C. Under
the above condition, the following process is to be performed with the utilization of
MODEs 1 to 3.

Figure 8-6 Example of Offset Function

HRX-OM-I051

Chapter 8 Appendix

 When MODE1 is selected

This mode enables this system to exercise temperature control to obtain 31°C
(TEMP SP value +OFFSET value), with OFFSET value set at 1°C. Once the
discharge temperature of the circulating fluid becomes 31°C, 1°C-thermal
dissipation is assured to allow the circulating fluid in your system to be 30°C.
TEMP SP value is obtained for your system.
Note that “31°C” is recorded in TEMP PV and communication data.

Figure 8-7 When MODE1 is selected

HRZ Series 8.4 Offset Function

HRX-OM-I051

8-20

1 ℃ This system

Your system

Discharge temp.:

30

℃

Circulating fluid temp. in

your system: 29

℃

TEMP PV 29

℃

TEMP SP 30

℃

OFFSET -1

℃

External communication

Communication data

TEMP PV 29

℃

TEMP PV

29

℃

Heat dissipation:

Heat

1 ℃ This system

Your system

Discharge temp:

31 ℃ Circulating fluid temp. in

your system: 30

℃

TEMP PV 30

℃

TEMP SP 30

℃

OFFSET

℃

External communication

Communication data

TEMP PV 30

℃

TEMP PV

30

℃

dissipation:

Chapter 8 Appendix

 When MODE2 is selected

With OFFSET value set at -1°C, TEMP PV and communication data express

“29°C” (circulating fluid discharge temp. value + OFFSET value) that agrees with

the temperature of the circulating fluid in your system.

Figure 8-8 When MODE2 is selected

 When MODE3 is selected

This mode enables this system to exercise temperature control to obtain 31°C
(TEMP SP value +OFFSET value), with OFFSET value set at 1°C. Once the
discharge temperature of the circulating fluid becomes 31°C, 1°C-thermal
dissipation is assured to allow the circulating fluid in your system to be 30°C.
TEMP SP value is obtained for your system. TEMP PV and communication data
also express “30°C” (circulating fluid discharge temp. value - OFFSET value) that
agrees with the temperature of the circulating fluid in your system.

Figure 8-9 When MODE3 is selected

8.4 Offset Function HRZ Series

8-21

8.5 BAND/READY function

BAND

TEMP SP

TEMP PV

TEMP READY not display/not output

TEMP READY display/output

READY
TIME

Sets BAND to TEMP SP value, and notifies TEMP PV value reaches within
BAND range by the operation display panel or the communication.
See section “5.3.9 Initial Setting screen” on page 5-7, “5.3.11 Option screen” on
page 5-9 for the procedure of the setting.

When the setting is ON



Allows the setting of the BAND and REDY TIME. Allows the setting of the
communication output.

HRX-OM-I051

Chapter 8 Appendix

Figure 8-10 BAND/READY function

Examples of Setting



TEMP SP：20℃
BAND：2℃
READY TIME：60sec.

”TEMP READY” is displayed on the operation display panel 60-sec. after
TEMP PV value becomes 18℃ to start output by communication.
Necessary condition is that TEMP PV value after 60-sec. is 20+/-2.0℃ or
less. See “5.3.4 Status screen 3” on page 5-4 for the details of display

position.

When the setting is OFF



BAND/READY function becomes invalid.

HRZ Series 8.5 BAND/READY function

HRX-OM-I051

8-22

Front

Anti-seismic bracket (optional)

Anchor bolt (4-Ø14)
Top

 Anti-seismic bracket is an optional accessory, which is required for the

installation of this system (HRZ-TK002).

 It is your responsibility to prepare anchor bolts suitable for your floor

material.
M12-anchor bolts (4 pcs.) are required.

Chapter 8 Appendix

8.6 Anchor Bolt Mounting Position

8.6.1 Part 1

HRZ001-L HRZ002-L HRZ004-L
HRZ001-L1 HRZ002-L1 HRZ004-L1
HRZ001-L2 HRZ002-L2 HRZ004-L2 HRZ008-L2
HRZ001-H HRZ002-H HRZ004-H HRZ008-H
HRZ001-H1 HRZ002-H1 HRZ004-H1 HRZ008-H1
HRZ002-W HRZ008-W HRZ002-W1 HRZ008-W1
HRZ010-WS HRZ010-W1S HRZ010-W2S

Lock the brakes on casters (2 pcs. on the front), and attach the anti-seismic bracket
(optional: HRZ-TK002) to secure this system.

Figure 8-11 Anchor Bolt Mounting Position

8.6 Anchor Bolt Mounting Position HRZ Series

8-23

8.6.2 Part 2

Anchor bolt

Anchor bolt

Adjustable foot

Top

Anchor bolt

Anchor bolt

2-Ø9 notch

Anti-seismic bracket (accessory)

 Anti-seismic bracket is an accessory, which is required for the installation

of this system.

 It is your responsibility to prepare anchor bolts suitable for your floor

material.
M8-anchor bolts (8 pcs.) are required.

HRX-OM-I051

Chapter 8 Appendix

HRZ008-L HRZ008-L1

Adjust and secure the adjuster foot of this system to secure the anti-seismic
bracket.

Figure 8-12 Anchor Bolt Mounting Position

HRZ Series 8.6 Anchor Bolt Mounting Position

HRX-OM-I051

8-24

CE Marking

EMC Directive

2004/108/EC

Low Voltage
Directive

2006/95/EC

Machinery
Directive

2006/42/EC

SEMATECH

S2-93, S8-95

SEMI

S2-0703, S8-0701, F47-0200

UL

E229305 / UL1995

Chapter 8 Appendix

8.7 Compliance

This system conforms to the following standards.

Table 8-14 Compliance

8.7 Compliance HRZ Series

8-25

To confirm daily inspection item on the Thermo Chiller, See “Table 7-2 Daily Inspection” in “7.2.1 Daily inspection” of “Chapter 7.

Circulating flui d

supply port cap

LoosenessIN press.FlowrateTemp.

Operating

conditi on

Error

Circulating

fluid

flowrate

Circulating flui d

outlet press.

Refrigerant

press.

Circulating

fluid temp.

Fluid Lev el

Cooling waterCirculating fluidHumidityTemp.Date

After installation

(initial value)

IN/OUT of range

Operation display

panel

Judgment

Function

Display

℃

MPa

MPa

L/min

Your name

％

℃

Installation

Facility water

℃

Yes/No

Yes/No

Leakage

Yes/No

Yes/No

L/min

MPa

Thermo Chiller Daily Inspection Sheet

Model:

Serial No.

8.8 Thermo Chiller Daily Inspection Sheet

HRX-OM-I051

Chapter 8 Appendix

HRZ Series 8.8 Thermo Chiller Daily Inspection Sheet

Product Warranty

1. Warranty

If a failure is observed in our Thermo Chiller, repair shall be provided in accordance with the warranty period
and preconditions defined below at SMC’s option.

Repair involves the inspection and/or replacement and/or modification of a defective part.
Removed parts shall become the possession of SMC.

2. Warranty period

The warranty period of the product is 1 year in service or 1.5 years after the product is delivered.

3. Warranty exemption

SMC’s liability under this warranty shall not be available for the following troubles and damages.
(1) Troubles or damage caused by the neglect of our designated inspection (daily inspection, periodic inspection)
(2) Troubles or damages caused by mishandling such as using improper operating procedure and using with our

specifications violated
(3) Troubles or damages caused by unauthorized modification.
(4) Troubles or damages caused by the use of a not-designated circulating fluid and facility water
(5) Troubles or damages caused by wearing out such as fading on the coated or plated surface
(6) Sensory phenomena that are considered no effect on the functions (such as noise, vibration)
(7) Troubles or damages caused by natural disaster such as earthquake, typhoon, water, inevitable events and fire
(8) Troubles or damages occurred under the installation conditions defined in the Operation Manual
(9) Troubles or damages that are not compliant with the “5. Warranty preconditions”

4. Escape clause

(1) Expenses of daily inspection and periodic inspection
(2) Expenses of repair consigned with neither SMC nor our authorized service station
(3) Expenses of transport, installation, and removal of this system
(4) Expenses of removal of non-genuine parts and replenishment of non-genuine fluids
(5) Unavailability and loss due to this system being disabled

(such as telephone bill, leave compensation, commercial loss)
(6) Expenses and compensation for terms other than provided in “1. Warranty”

5. Warranty precondition

Proper use and inspection of this system is required to assure safe use of this system. System warranty shall
satisfy the following preconditions. Please take note that warranted repair shall not be available if these
preconditions are disregarded.
(1) System operation shall be conducted by following operating procedure defined in the Operation Manual.
(2) Daily and periodic inspections designated in the Operation Manual shall be made as scheduled.
(3) Inspection record shall be entered in the Daily Inspection Sheet provided in the Operation Manual.

6. Request for warranted repair

As to warranted repair, please contact the supplier you purchased this system from for service.
Warranted repair shall be on request basis.

Unrequited repair shall be provided in accordance with the warranty period, preconditions and terms defined above.
Therefore, the repair service shall be available on a chargeable basis if a failure is detected after the warranty period.