SMC Networks HRS100-A 46 Series User manual

HRX-OM-S004-K
Operation Manual
Installation･Operation
Original Instructions
Thermo chiller
HRS100-A  -20- 
HRS150-A  -20- 
HRS100-A  -40- 
HRS150-A  -40- 
HRS100-A  -46- 
HRS150-A  -46- 
HRS100-W  -20- 
HRS150-W  -20- 
HRS100-W  -40- 
HRS150-W  -40- 
HRS100-W  -46- 
HRS150-W  -46- 
Keep this manual available whenever necessary
© 2021 SMC CORPORATIONAll Rights Reserved

To the users
Thank you for purchasing SMC’s Thermo chiller (hereinafter referred to as the “product”).
For safety and long life of the product, be sure to read this operation manual (hereinafter referred to as the
“manual”) and clearly understand the contents.
Be sure to read and follow all instructions noted with “Warning” or “Caution” in this manual.
This manual is intended to explain the installation and operation of the product. Only people who
understand the basic operation of the product through this manual or who perform installation and
operation of or have basic knowledge about industrial machines are allowed to work on the product.
This manual and other documents attached to the product do not constitute a contract, and will not
affect any existing agreements or commitments.
It is strictly prohibited to copy this manual entirely or partially for the use by a third party without prior
permission from SMC.
Note: This manual is subject to possible change without prior notice.

HRX-OM-S004
Contents
HRS Series
Contents
Chapter 1 Safety Instructions...........................................................1-1
1.1 Before using the product........................................................................................ 1-1
1.2 Reading the Manual ................................................................................................ 1-1
1.3 Hazards.................................................................................................................... 1-2
1.3.1 Level of hazards.................................................................................................................. 1-2
1.3.2 Definition of “Serious injury” and “Minor injury” ................................................................... 1-2
1.4 Product Label .......................................................................................................... 1-3
1.5 Safety Measures...................................................................................................... 1-4
1.5.1 Safety Instructions for Use.................................................................................................. 1-4
1.5.2 Personal protective equipment............................................................................................ 1-4
1.6 Emergency Measures.............................................................................................. 1-5
1.7 Waste disposal ........................................................................................................ 1-5
1.7.1 Disposal of refrigerant and compressor oil.......................................................................... 1-5
1.7.2 Disposal of product.............................................................................................................. 1-5
1.8 Material Safety Data Sheet (MSDS)........................................................................ 1-6
Chapter 2 Name and Function of Parts............................................2-1
2.1 Model number of product ....................................................................................... 2-1
2.2 Name and Function of Parts................................................................................... 2-2
2.2.1 HRS100/150-A-20/40/46 (In case of air cooled type) ....................................................... 2-2
2.2.2 HRS100/150-W-20/40/46 (In case of water cooled type).................................................. 2-3
2.3 Function of Parts..................................................................................................... 2-4
2.4 Operation display panel.......................................................................................... 2-5
Chapter 3 Transport and Setting Up.................................................3-1
3.1Transport.................................................................................................................. 3-1
3.1.1 Transportation using forklift and hanging............................................................................ 3-2
3.1.2 Transportation using casters............................................................................................... 3-3
3.2Installation............................................................................................................... 3-4
3.2.1 Environment........................................................................................................................ 3-4
3.2.2 Location............................................................................................................................... 3-6
3.2.3 Installation and Maintenance Space................................................................................... 3-8
3.3 Installation............................................................................................................... 3-9
3.3.1 Installation ........................................................................................................................... 3-9
3.3.2 Electrical wiring ..................................................................................................................3-11
3.3.3 Preparation and wiring of power supply cable .................................................................. 3-13
3.3.4 Contact input/output communicatin wiring ........................................................................ 3-18
3.3.5 Wiring of run/stop signal input･Remote signal input......................................................... 3-19
3.3.6 Wiring of external switch signal input................................................................................ 3-21
3.3.7 Wiring of contact output signal.......................................................................................... 3-24
3.3.8 RS-485 communication wiring .......................................................................................... 3-25

HRX-OM-S004
Contents
HRS Series
3.3.9 RS-232C communication wiring ........................................................................................3-26
3.4 Piping......................................................................................................................3-27
3.5 Circulating Fluid Supply........................................................................................3-31
3.5.1 Automatic fluid-fill function.................................................................................................3-31
3.5.2 Fill of fluid without using auto fluid-fill function ..................................................................3-33
3.5.3 For option K “Fluid-fill port” ................................................................................................3-35
Chapter 4 Starting the Product......................................................... 4-1
4.1 Before Starting.........................................................................................................4-1
4.2 Preparation for Start................................................................................................4-2
4.2.1 Power supply .......................................................................................................................4-2
4.2.2 Option B [Earth leakage breaker]........................................................................................4-2
4.2.3 For HRS100/150-**-20-B1,HRS100/150-**-40/46...............................................................4-3
4.2.4 Setting of circulating fluid temperature................................................................................4-3
4.3 Preparation of circulating fluid ...............................................................................4-4
4.4 Operation Start and Stop.........................................................................................4-7
4.4.1 Starting the product .............................................................................................................4-7
4.4.2 Stopping the product............................................................................................................4-8
4.5 Check items during startup.....................................................................................4-9
4.6 Adjustment of Circulating Fluid flow rate ..............................................................4-9
Chapter 5 Display and setting of various functions ....................... 5-1
5.1 List of function.........................................................................................................5-1
5.2 Function....................................................................................................................5-2
5.2.1 Key operations.....................................................................................................................5-2
5.2.2 List of parameters................................................................................................................5-4
5.3 Main Display.............................................................................................................5-7
5.3.1 Main Display........................................................................................................................5-7
5.3.2 Items on the main display....................................................................................................5-7
5.4 Alarm Menu..............................................................................................................5-8
5.4.1 Alarm menu .........................................................................................................................5-8
5.4.2 Items shown on the alarm menu display.............................................................................5-8
5.5 Check monitor menu ...............................................................................................5-9
5.5.1 Check monitor menu............................................................................................................5-9
5.5.2 Checking with the Inspection monitor menu........................................................................5-9
5.6 Key-lock..................................................................................................................5-13
5.6.1 Key-lock.............................................................................................................................5-13
5.6.2 Key-lock setting / checking................................................................................................5-14
5.7 Run timer, stop timer function..............................................................................5-15
5.7.1 Run timer and stop timer function......................................................................................5-15
5.7.2 Setting and checking of Run timer and stop timer function...............................................5-17
5.8 Ready completion (TEMP READY) signal ............................................................5-19

HRX-OM-S004
Contents
HRS Series
5.8.1 Ready completion (TEMP READY) signal........................................................................ 5-19
5.8.2 Ready completion (TEMP READY) signal setting / checking........................................... 5-20
5.9 Offset function....................................................................................................... 5-22
5.9.1 Offset function ................................................................................................................... 5-22
5.9.2 Usage example of offset function...................................................................................... 5-23
5.9.3 Setting/checking of offset function..................................................................................... 5-25
5.10 Operation Restoration after Power Failure.......................................................... 5-27
5.10.1 Operation restoration function after power failure............................................................. 5-27
5.10.2 Setting/checking of the operation restoration function...................................................... 5-28
5.11 Anti-freezing function ........................................................................................... 5-29
5.11.1 Anti-freezing function......................................................................................................... 5-29
5.11.2 Setting/checking of anti-freezing function ......................................................................... 5-31
5.12 Key Operation Sound Setting............................................................................... 5-32
5.12.1 Key operation sound setting.............................................................................................. 5-32
5.12.2 Setting/checking of the button operation sound................................................................ 5-32
5.13 Temperature unit Change ..................................................................................... 5-33
5.13.1 Temperature unit change................................................................................................... 5-33
5.13.2 Setting/checking of temperature unit change.................................................................... 5-33
5.14 Pressure unit Change ........................................................................................... 5-34
5.14.1 Pressure unit change ........................................................................................................ 5-34
5.14.2 Setting/checking of pressure unit change......................................................................... 5-34
5.15 Data reset function................................................................................................ 5-35
5.15.1 Data reset function............................................................................................................ 5-35
5.15.2 How to operate reset function ........................................................................................... 5-35
5.16 Accumulated Operating Time Reset Function .................................................... 5-36
5.16.1 Accumulated operating time reset function....................................................................... 5-36
5.16.2 How to operate accumulated operating time reset function.............................................. 5-36
5.17 Warming up function............................................................................................. 5-40
5.17.1 Warming up function.......................................................................................................... 5-40
5.17.2 Setting/checking of warming up function........................................................................... 5-41
5.18 Anti-snow coverage function ............................................................................... 5-43
5.18.1 Anti-snow coverage function............................................................................................. 5-43
5.18.2 Setting/checking of anti-snow coverage function.............................................................. 5-44
5.19 Alarm buzzer sound setting.................................................................................. 5-45
5.19.1 Alarm buzzer sound setting............................................................................................... 5-45
5.19.2 Setting/checking of alarm buzzer sound........................................................................... 5-45
5.20 Alarm customizing function ................................................................................. 5-46
5.20.1 Alarm customizing function ............................................................................................... 5-46
5.20.2 Setting and checking of the alarm customizing function................................................... 5-50
5.20.3 Setting of temperature alarm monitoring method and alarm generation timing................ 5-63

HRX-OM-S004
Contents
HRS Series
5.21 Communication function.......................................................................................5-70
5.21.1 Communication function....................................................................................................5-70
5.21.2 Setting/checking of communication function .....................................................................5-70
Chapter 6 Alarm Notification and Troubleshooting........................ 6-1
6.1 Alarm Notification....................................................................................................6-1
6.2 Alarm buzzer stop....................................................................................................6-3
6.3 Troubleshooting.......................................................................................................6-4
6.3.1 Alarm contents, causes, and troubleshooting......................................................................6-4
6.3.2 How to release the thermal relay trip and circuit protector..................................................6-8
6.3.3 How to release the pump thermal trip................................................................................6-10
6.4 Other Errors ...........................................................................................................6-11
Chapter 7 Control, Inspection and Cleaning................................... 7-1
7.1 Quality Control of Circulating Fluid and Facility Water.........................................7-1
7.2 Inspection and Cleaning..........................................................................................7-2
7.2.1 Daily check ..........................................................................................................................7-2
7.2.2 Monthly check......................................................................................................................7-3
7.2.3 Inspection every 3 months...................................................................................................7-4
7.2.4 Inspection every 6 months...................................................................................................7-6
7.2.5 Inspection during winter season..........................................................................................7-7
7.3 Consumables ...........................................................................................................7-7
7.4 Operation Stop for an Extended Period of Time....................................................7-8
7.4.1 Discharge of the circulating fluid..........................................................................................7-8
7.4.2 Discharge of the facility water (Water-cooled type).............................................................7-9
Chapter 8 Documents ....................................................................... 8-1
8.1 Specifications ..........................................................................................................8-1
8.1.1 HRS100/150-A-20-...........................................................................................................8-1
8.1.2 HRS100/150-A-40-...........................................................................................................8-2
8.1.3 HRS100/150-A-46-...........................................................................................................8-3
8.1.4 HRS100/150-W-20-..........................................................................................................8-4
8.1.5 HRS100/150-W-40-..........................................................................................................8-5
8.1.6 HRS100/150-W-46-..........................................................................................................8-6
8.1.7 Refrigerant with GWP reference..........................................................................................8-7
8.1.8 Communication specification...............................................................................................8-7
8.2 Outline dimensions..................................................................................................8-8
8.2.1 HRS100/150-A-20/40/46-................................................................................................8-8
8.2.2 HRS100/150-W-20/40/46-...............................................................................................8-9
8.3 Flow diagram..........................................................................................................8-10
8.3.1 HRS100/150-A-20/40/46-..............................................................................................8-10
8.3.2 HRS100/150-W-20/40/46-............................................................................................. 8-11
8.4 Cooling capacity....................................................................................................8-12

HRX-OM-S004
Contents
HRS Series
8.4.1 HRS100-A-20/40/46-..................................................................................................... 8-12
8.4.2 HRS150-A-20/40/46-..................................................................................................... 8-12
8.4.3 HRS100-W-20/40/46-.................................................................................................... 8-13
8.4.4 HRS150-W-20/40/46-.................................................................................................... 8-13
8.5 Pump capacity....................................................................................................... 8-14
8.5.1 HRS100/150-A/W-20/40/46-.......................................................................................... 8-14
8.6 Types of Hazard Labels (HRS--40/46-)....................................................... 8-15
8.6.1 Positions of danger warning label ..................................................................................... 8-16
8.7 Standards............................................................................................................... 8-17
8.8 Sample DoC........................................................................................................... 8-18
8.9 Daily Check Sheet ................................................................................................. 8-19
Chapter 9 Product Warranty .............................................................9-1

HRX-OM-S004
Contents
HRS Series

HRX-OM-S004
Chapter 1 Safety Instructions
HRS Series 1.1Before using the product
1-1
Chapter 1 Safety Instructions
1.1 Before using the product
This chapter is intended to specifically describe the safety related issues
for handling the product. Read this before handling the product.
The product is a cooling device using circulating fluid. SMC does not take
any responsibility for any problems that may arise from using the product
for other purposes.
This product is not designed for a clean room. It generates dust from the
internal components such as pump and fan motor.
The product is operated at high voltage and contains components which
become hot and rotate. If a component needs to be replaced or repaired,
contact a specialized vendor for parts and service.
All personnel who work with or around the product should read and
understand the safety related information in this manual carefully before
starting work.
The safety manager is responsible for strictly observing safety standards,
but responsibility in respect to safety standards during daily work resides
with each individual operator and maintainance personnel.
Do not use the materials that rust or corrode for the circulating fluid
and facility water circuits. Using the materials that tend to rust or
corrode may cause clogs or/and leakages of the circulating fluid and
facility water circuits. In case of using these kind of materials, consider
and carry out some prevention against the rusting or corrosion by the
customer side.
This manual must be kept available to operators whenever necessary.
1.2 Reading the Manual
This manual contains symbols to help identify important actions when
installing, operating or maintaining the product.
Before using the product be sure to read and understand all the
important actions highlighted in this manual.
This sign indicates actions that must be followed.
This sign indicates prohibited actions.

HRX-OM-S004
Chapter 1 Safety Instructions
1.3 Hazards HRS Series
1-2
1.3 Hazards
1.3.1 Level of hazards
The instructions given in this manual aim to assure the safe and correct
operation of the product, and to prevent injury of operators or damage to the
product. These instructions are grouped into three categories, Danger,
Warning and Caution, which indicate the level of hazard, damage and also
the degree of emergency. All safety critical information should be carefully
observed at all times.
“DANGER”, “WARNING” and “CAUTION” signs are in order according to
severity (DANGER> WARNING> CAUTION).
1.3.2 Definition of “Serious injury” and “Minor injury”
“Serious injury”
This term describes injuries that result in after effects including loss of
eyesight, burns, electrical shock, fracture, poisoning, etc. and requires
long-term treatment or hospitalization.
“Minor injury”
This term describes injuries that do not need long-term treatment or
hospitalization. (Others excluded from serious injury.)
“WARNING”: Hazard that MAY cause serious personal injury or death during
operation.
“DANGER”: Hazard that WILL cause serious personal injury or death during
operation.
“CAUTION”: Hazard that MAY cause minor personal injury.
“CAUTION without exclamation symbol”: Hazard that MAY cause damage or failure
of the product, facility, devices, ect.

HRX-OM-S004
Chapter 1 Safety Instructions
HRS Series 1.4Product Label
1-3
1.4 Product Label
Information about the product, such as Serial No. and Model No. can be
found on the product label. This information is needed when contacting an
SMC sales distributor.
How to see the serial number SO001 （January 2014）
S
O
001
Year
Symbol
Remarks
Month
Symbol
Remarks
Serial no.
2014
S
Repeated
from
A to Z in
alphabetical
order
1
O
Repeated from
O to Z in
alphabetical
order, with O for
January and Z for
December
－
2015
T
2
P
2016
U
3
Q
↓
↓
↓
↓
Fig. 1-1 Position of the product label
 An example of HRS150-A-20
"3~" stands for "3 interphase".

HRX-OM-S004
Chapter 1 Safety Instructions
1.5 Safety Measures HRS Series
1-4
1.5 Safety Measures
1.5.1 Safety Instructions for Use
Read and understand this manual carefully before using the product.
Before starting maintenance of the product, be sure to lock out and tag out the
breaker of the user's power supply.
If operating the product during maintenance, be sure to inform all workers nearby.
Use only the correct tools and procedure when installing or maintaning the product.
Use personal protective equipment where specified (“1.5.2Personal protective
equipment”)
Check all parts and screws are fitted correctly and securely after maintenance.
Avoid working in a drunken or sick condition, which might cause an accident.
Do not remove the panels except for the cases permitted in this manual.
Do not remove the panels during operation.
Do not handle this product by any means other than specified in this Operation
Manual; this can result in damage to the product or fire.
1.5.2 Personal protective equipment
This manual specifies personal protective equipment for each work.
Transport, Installing and Uninstalling
Handling of circulating fluid
Operation
Always use safety shoes, gloves, mask, apron and eye protection
when handling the circulating fluid.
Always use safety shoes, gloves and head protection when
transporting, installing or uninstalling the product.
Follow the instructions below when using the product. Failure to
follow the instructions may cause an accident and injury.
Always use safety shoes and gloves when operating the product.

HRX-OM-S004
Chapter 1 Safety Instructions
HRS Series 1.6Emergency Measures
1-5
1.6 Emergency Measures
When emergency conditions such as natural disaster, fire, earthquake and
injury occur, shut off the breaker of the user’s power supply that supplies
power to the product.
1.7 Waste disposal
1.7.1 Disposal of refrigerant and compressor oil
The product uses hydro fluorocarbon type refrigerant (HFC) and
compressor oil. Comply with the laws and regulations in each country for the
disposal of refrigerant and compressor oil. The type and quantity of
refrigerant is described on the 1.4 Product Label.
If these fluids need to be recovered, read and understand the instructions
below carefully. If there is any unclear point, contact an SMC's sales
distributor.
1.7.2 Disposal of product
The disposal of the product must be handled by a specialized industrial
waste disposal agency in accordance with local laws and regulations.
Only maintenance personnel or qualified people are allowed to
open the cover panels of the product.
Do not mix the compressor oil with domestic waste for disposal.
Also, the disposal of the waste must only be conducted by specific
facilities that are permitted for that purpose.
Even when the power supply switch is turned off, some of the internal
circuits are still energized, unless the user’s power supply is shut off.
Be sure to shut off the breaker of the user’s power supply.
Comply with the laws and regulations in each country for the
disposal of refrigerant and compressor oil.
The release of refrigerant in to the atmosphere is banned by law.
Recover it with specific equipment and dispose of it correctly.
Only people who have sufficient knowledge and experience about
the product and its accessories are allowed to recover the
refrigerant and compressor oil.

HRX-OM-S004
Chapter 1 Safety Instructions
1.8 Material Safety Data Sheet (MSDS) HRS Series
1-6
1.8 Material Safety Data Sheet (MSDS)
If the material safety data sheets of chemicals used in this product are
needed, contact an SMC's sales distributor.
Any chemicals used by the user must be accompanied by an MSDS.

HRX-OM-S004
Chapter 2 Name and Function of Parts
HRS Series 2.1Model number of product
2-1
Chapter 2 Name and Function of Parts
2.1 Model number of product
The product can be ordered with the model number configured as shown
below.
The product needs to be handled in different ways depending on the part
number. Refer to “1.4 Product Label”and check the part number of the
product.
HRS
①Cooling capacity
②Cooling method
③Piping thread type ④Power supply
- - -
⑤Options
A Air-cooled refrigeration
None
Nill
Nill Rc
F G (Rc-G thread adapter set is included)
NNPT (Rc-NPT thread adapter set is
included)
A20
100 10kW
WWater-cooled
refrigeration
150 15kW Casters･adjuster footsA
Earth leakage breakerB
Fluid fill portK
*1 : In case of power supply '40/46', this is
standard. (with a handle)
*2 : Unit : MPa/ ゜C(degree Celsius)
Earth leakage breaker
B1 with a handle
B1
Fixed SI unitW
20 3phase 200VAC(50Hz)
3phase 200 to 230VAC(60Hz)
40 3phase 380 to 415VAC(50/60Hz)
46 3phase 380 to 415VAC(50/60Hz)
3phase 460 to 480VAC(60Hz)
Fig. 2-1 Product model number

HRX-OM-S004
Chapter 2 Name and Function of Parts
2.2 Name and Function of Parts HRS Series
2-2
2.2 Name and Function of Parts
2.2.1 HRS100/150-A-20/40/46 (In case of air cooled type)
Fig. 2-2 Names of the parts (This drawing shows “HRS150-A-20”.)
Table 2-1 Accessory list
①
Alarm code list label
2pcs.
(English 1pc. /Japanese 1pc.)
②
Operation manual
2pcs.
(English 1pc./Japanese 1pc.)
③
Y strainer (40 meshes) 20A
1pc.
④
Barrel nipple 20A
1pc.
⑤
Drain pan for the pump
1pc.
⑥
For HRS-AF-
G thread adapter set (HRS-EP028)
1set
For HRS-AN-
NPT thread adapter set (HRS-EP027)
1set

HRX-OM-S004
Chapter 2 Name and Function of Parts
HRS Series 2.2Name and Function of Parts
2-3
2.2.2 HRS100/150-W-20/40/46 (In case of water cooled type)
Fig. 2-3 Names of the parts (This drawing shows “HRS150-W-20”.)
Table 2-2 Accessory list
①
Alarm code list label
2pcs.
(English 1pc. /Japanese 1pc.)
②
Operation manual
2 Copies
(English 1 copy/Japanese 1
copy)
③
Y strainer (40 meshes) 20A
1pc.
④
Barrel nipple 20A
1pc.
⑤
Drain pan for the pump
1pc.
⑥
For HRS-WF-
G thread adapter set (HRS-EP030)
1set
For HRS-WN-
NPT thread adapter set (HRS-EP029)
1set

HRX-OM-S004
Chapter 2 Name and Function of Parts
2.3 Function of Parts HRS Series
2-4
2.3 Function of Parts
The function of parts is as follows.
Table 2-3 Function of parts
Name
Function
Operation display panel
Runs and stops the product and performs settings such as the circulating
fluid temperature.
For details, refer to ’’2.4 Operation display panel’’.
Fluid level gauge
Indicates the circulating fluid level of the tank. Confirm the level is between
HIGH and LOW. For details, refer to “3.5Circulating Fluid”.
Product label
Shows the product information such as model number and serial number.
For details, refer to ‘’1.4 Product Label’’.
Circulating fluid outlet port
The circulating fluid flows out from the outlet port.
Circulating fluid return port
The circulating fluid returns to the return port.
Pump drain port
This drain port to drain the circulating fluid out of the tank and the pump.
Automatic fluid fill port
Piping to the automatic fluid filling port enables easy supply of the circulating
fluid through the ball tap in the reservoir.The supply pressure should be
within the range of 0.2 to 0.5MPa.
Overflow port
Be sure to connect piping from this port to sump pit to discharge the exsess
circulating fluid that caused by fluid level rising.
Dust-proof filter
Inserted to prevent that the dust and contamination are clung on the air
cooled condensers directly. Clean the filter periodically. For details, refer to
“7.2.2Monthly check”.
Power cable entry
Insert the power cable to the power cable entry and connect it to the power
terminal. For details, refer to “3.3.2Electrical wiring”and “3.3.3Preparation
and wiring of power supply cable”.
Power terminal
Signal cable entry
Insert the signal cable to the signal cable entry and connect it to the signal
connectors. For details, refer to “3.3.5 Wiring of run/stop signal input･
Remote signal input”, “3.3.6Wiring of external switch signal input”,
“3.3.7Wiring of contact output signal”, “3.3.8RS-485 communication
wiring”, “3.3.9RS-232C communication wiring or the Operation manual
Communication function.
Signal connecors
Earth leakage breaker
(When option B [Earth leakage
breaker]I is selected.
Shuts off the power supply to the internal eqipment of the product.
(Parts energized remained in the product)
Refer to “3.3.2Electrical wiring”for the earth leakage breaker.
Earth leakage breaker with
breaker handle
(For HRS--20-B1,
HRS--40/46-)
Shuts off the power supply to the internal equipment of the product.
(Parts energized remained in the product. )
Refer to “3.3.2Electrical wiring”for the earth leakage breaker.
Facility water inlet port
Supply facility water to the inlet port.
Facility water outlet port
Facility water is discharged from the outlet port and returns to the user’s
facility water system.

HRX-OM-S004
Chapter 2 Name and Function of Parts
HRS Series 2.4Operation display panel
2-5
2.4 Operation display panel
The operation panel on the front of the product controls the basic operation
of the product.
Fig. 2-4 Operation display panel
Table 2-4 Operation display panel
No
Description
Function
Reference
page
①
Digital display
(7 segment,
4 digits)
PV
Displays the temperature and pressure of the circulating
fluid andalarm codes.
5.3
SV
Displays the set temperature of the circulating fluid and
the set values of other menus.
②
[oC oF] light
Displays the unit of display temperature (oCor oF).
5.13
③
[MPa PSI] light
Displays the unit of display pressure (MPa or PSI).
5.14
④
[REMOTE] light
Turns on during remote operation by communication.
5.21
⑤
[RUN] light
・Turns ON when the product is started and inoperation. Turns OFF
when the product stops.
・Blinks during stand-by for stop (Interval 0.5 seconds).
・Blinks during independent operation of the pump (Interval 0.3
seconds).
・Blinks while the anti-freezing function is being set (During
standby: Interval 2 seconds, During operation: Interval 0.3
seconds).
・Blinks during warming up function (During standby: Turns ON
for 0.5 seconds and OFF for 3 seconds, During operation:
Interval 0.3 seconds.)
4.4
⑥
[ALARM] light
Blinks with buzzer when alarm occurs (Interval 0.3 seconds).
5.4
Blinks while AL25 is OFF (Turns ON for 0.5 seconds and OFF
for 3 seconds.)
5.20
⑦
[ ] light
Turns ON when the fluid level lowers below “L”(low) level.
4.3
⑧
[ ] light
Turns ON while the run timer or stop timer function is working.
5.7
⑨
[ ] light
Turns ON when the product is in automatic operation.
5.10
⑩
[RUN/STOP] key
Makes the product start or stop.
4.4
⑪
[MENU] key
Moves from the mainmenu (display which shows circulatingfluid
temperature, pressure and etc.) to the other menus (entry of set
values and monitor screen).
5.2
⑫
[SEL] key
Changes the item inmenu and enters the set value.
⑬
[▼] key
Decreases the set value.
-
⑭
[▲] key
Increases the set value.
⑮
[PUMP] key
When the [MENU] and [RUN/STOP] buttons are held down
simultaneously, the pump starts running independently.
4.3
⑯
[RESET] key
Press the [▼] and [▲] keys simultaneously. This will stop the alarm
buzzer and turn off the [ALARM] light.
6.3
Keep the [▼] and [▲] keys pressed down simultaneously for 3
seconds to reset AL46 andAL48.(After resettingAL48,
WAIT( ) will be displayed and the product cannot start
runningfor 40 seconds. Restart 40 seconds later after resetting.

HRX-OM-S004
Chapter 2 Name and Function of Parts
2.4 Operation display panel HRS Series
2-6