SMC Networks HRS200-A 46 S Series Operation Manual

Thermo chiller

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HRX-OM-W032-F

Operation Manual

Installation ･ Operation

Original Instructions

Thermo Chiller

HRS Series



HRS200-A

-46-

Keep this manual available whenever necessary

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Summary of Contents for SMC Networks HRS200-A 46 S Series

Page 1 HRX-OM-W032-F Operation Manual Installation ･ Operation Original Instructions Thermo Chiller HRS Series    HRS200-A -46- Keep this manual available whenever necessary © 2021 SMC CORPORATION All Rights Reserved...
Page 2 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. ...
Page 3 HRX-OM-W032 Contents Contents Chapter 1 Safety Instructions ............1-1 Before Using the Product ..................1-1 Reading the Manual ....................1-1 Hazards ........................1-2 1.3.1 Level of hazards ........................1-2 Definition of “Serious injury” and “Minor injury” ..............1-2 1.3.2 Product Label ......................1-3 Safety Measures ......................
Page 4 HRX-OM-W032 Contents 3.3.8 RS-485 communication wiring ................... 3-24 3.3.9 RS-232C communication wiring ..................3-25 Piping ........................3-26 Circulating Fluid Supply ..................3-29 3.5.1 Automatic water fill function ....................3-29 3.5.2 Fluid supply without using the automatic water fill function ..........3-31 Option K “Water fill port”...
Page 5 HRX-OM-W032 Contents 5.8.1 Ready completion (TEMP READY) signal ................ 5-19 5.8.2 Ready completion (TEMP READY) signal setting / checking ........... 5-20 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 ............
Page 6 HRX-OM-W032 Contents 5.21 Communication Function ..................5-68 5.21.1 Communication function ....................5-68 5.21.2 Setting/checking of communication function ..............5-68 Chapter 6 Alarm Notification and Troubleshooting ......6-1 Alarm Notification ....................6-1 Alarm Buzzer Stop ....................6-3 Troubleshooting ....................... 6-4 6.3.1 Alarm contents, causes, and troubleshooting..............
Page 7 HRX-OM-W032 Chapter 1 Safety Instructions Chapter 1 Safety Instructions Before using the product, be sure to read and understand all the important actions highlighted in this manual. 1.1 Before Using the Product ● This chapter is intended to specifically describe the safety related issues for handling the product.
Page 8 HRX-OM-W032 Chapter 1 Safety Instructions 1.3 Hazards 1.3.1 Level of hazards The instructions given in this manual aim to assure the safe and correct operation of the product, and to prevent injury of operators or damage to the product. These instructions are grouped into three categories, Danger, Warning and Caution, which indicate the level of hazard, damage and also the degree of emergency.
Page 9 HRX-OM-W032 Chapter 1 Safety Instructions 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. Model number Serial number Kind and amount of refrigerant * "3~"...
Page 10 HRX-OM-W032 Chapter 1 Safety Instructions 1.5 Safety Measures 1.5.1 Safety instructions for use Follow the instructions below when using the product. Failure to follow the instructions may cause an accident and injury. ● Read and understand this manual carefully before using the product. ●...
Page 11 HRX-OM-W032 Chapter 1 Safety Instructions 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. Even when the power supply swtich is turned off, some of the internal circuits are still energized, unless the user’s power supply is shut off.
Page 12 HRX-OM-W032 Chapter 1 Safety Instructions 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. 1.8 Material Safety Data Sheet (MSDS) HRS Series...
Page 13 HRX-OM-W032 Chapter 2 Name and Function of Parts Chapter 2 Name and Function of Parts 2.1 Model Number of Product The product can be ordered with the model number configured as shown below. The product needs to be handled in different ways depending on the part number.
Page 14 HRX-OM-W032 Chapter 2 Name and Function of Parts 2.2 Name and Function of Parts Ventilation air inlet Ventilation air inlet Operation Ventilation air outlet display panel Option K Handle [Fluid fill port] Breaker handle Overflow port Dust-proof filter Product label Circulating fluid outlet port Rc1 Power terminal...
Page 15 HRX-OM-W032 Chapter 2 Name and Function of Parts 2.3 Function of Parts The function of parts is as follows. Table 2-2: Function of parts Name Function Runs and stops the product and performs settings such as the circulating Operation display panel fluid temperature.
Page 16 HRX-OM-W032 Chapter 2 Name and Function of Parts 2.4 Operation Display Panel The operation panel on the front of the product controls the basic operation of the product. Fig. 2-3 Operation display panel Table 2-3: Operation display panel Reference Description Function page Displays the temperature and pressure of the circulating...
Page 17 HRX-OM-W032 Chapter 3 Transport and Setting Up Chapter 3 Transport and Setting Up  Only persons who have sufficient knowledge and experience about the product and system are allowed to transport and set up the product.  Especially pay attention to personal safety. 3.1 Transport The product is heavy and has potential danger at transport.
Page 18 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.1.1 Transportation using forklift and hanging This is a heavy product. (Refer to Table 3-1 Weight of the ) Moving by forklift and slinging should be product done by persons who have the licenses. Position to hang or less Fork inserting position...
Page 19 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.1.2 Transportation using casters In case of purchasing option A or the optional accessories, “Caster Adjuster-foot kit” (HRS-KS002) separately and after fastening it to the product. This is a heavy product. (Refer to Table 3-1 Weight of the product). Moving the product by casters should be done by 2 persons or more.
Page 20 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.2 Installation  Do not set up the product in places possibly exposed to leakage of flammable gas. Should any flammable gas stay around the product, the product may cause a fire.  Keep the product upright on a rigid and flat floor which can resist the weight of the product, and take measures to prevent the product from tipping over.
Page 21 HRX-OM-W032 Chapter 3 Transport and Setting Up ● Location without adequate space for maintenance as required. ● Location that is exposed to splash of water that is higher than IPX4. ● For the product installation or operation in accordance with UL standards, see below.
Page 22 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.2.2 Operation at low ambient temperature or low circulating fluid temperature (1) Circulating fluid In order to avoid freezing of the circulating fluid, use aqueous solution of ethylene glycol. Ambient temperature (°C) Recommended circulating fluids 10 to 45 Tap water, ethylene glycol aqueous solution 15(wt)% -5 to 10...
Page 23 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.2.3 Location  Do not install in a location which can be subjected to any of the conditions in “3.2.1 Environment”. The air cooled product radiates heat from the air vent of the cooling fan. If the product is operated with insufficient air ventilation the internal temperature can exceed 45 C, which can cause and affect the...
Page 24 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.2.4 Installation and maintenance space It is recommended to keep the space around the product shown in Fig. 3-3. Have an enough space for the ventilation for the product. Otherwise it may cause a lack of cooling capacity or/and stoppage of the product. Ensure there is enough space for maintenance.
Page 25 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3 Installation 3.3.1 Installation Install the product on a vibration free level floor. Prepare the M10 anchor bolts that are suitable for the material of the floor that the product will be installed on. Drive the anchor bolts in at least two places on the left and right sides of the product (four places in total).
Page 26 HRX-OM-W032 Chapter 3 Transport and Setting Up  Option A or “Caster Adjuster-foot kit” (HRS-KS002) In case of using “Caster Adjuster-foot kit”, be sure to use the adjuster foot to install on the floor. The adjuster foot is not earthquake-proof. If necessary make an earthquake-resistant measure on the customer side.
Page 27 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.2 Electrical wiring  Do not modify the internal electrical wiring of the product. Incorrect wiring may cause electric shock or fire. Also, modifying the internal wiring will void the product’s warranty.  NEVER connect the ground to water line, gas pipe or lightning conductor.
Page 28 HRX-OM-W032 Chapter 3 Transport and Setting Up  Power supply specifications, power supply cable and earth leakage breaker Prepare the power supply shown in the following table. For the connection between the product and power supply, use the power supply cable and earth leakage breaker shown below. An earth leakage breaker must be mounted to a position where the breaker is easily accessible and close to the thermo-chiller.
Page 29 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.3 Preparation and wiring of power supply cable  The electrical facilities should be installed and wired in accordance with local laws and regulations of each country and by a person who has knowledge and experience. ...
Page 30 HRX-OM-W032 Chapter 3 Transport and Setting Up A breaker that has the operating characteristic below is installed. Please use a breaker that has the same or longer operating time as/than this for the customer side (upstream side). If it has a shorter operating time, there is a possibility of accidental breaker trip due to the internal motors’...
Page 31 HRX-OM-W032 Chapter 3 Transport and Setting Up  Preparation for operation Remove four screws to remove the front panel for the electrical unit. Front panel for the electrical unit Note: Turn off the earth leakage breaker. The front panel of the electrical unit cannot be removed without turning off the breaker.
Page 32 HRX-OM-W032 Chapter 3 Transport and Setting Up Connect the power supply cable and the ground cable as shown in the figure below. View A L1 L2 L3 PE Inlet of the power supply cable Mount for cable tie Note: Prepare a cable tie. Fasten the power cable to the mount on the base with the cable tie.
Page 33 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.4 Contact input/output communication wiring Be sure to lock out and tag out the breaker of the facility power supply (the user’s machine power supply) before wiring. Use the cable and terminal that are specified. The capacity of the output contact of the product is limited.
Page 34 HRX-OM-W032 Chapter 3 Transport and Setting Up Table 3-5 Power supply, contact specifications Name Terminal No. Specification 5, 6, 7 (24 VDC) Power supply 24 VDC ±10 % 500 mA MAX output 13,14, 15 (24 V COM) - Run/Stop signal input (Contact input signal 1) Contact input - External switch signal...
Page 35 HRX-OM-W032 Chapter 3 Transport and Setting Up Connect the signal cable and switch to the terminal as shown below. (This wiring is an example. Refer to Operation Manual Communication Function for more details.) Switch Terminal No.5 Mount for cable tie Terminal No.13 Terminal No.3 Note: Prepare a cable tie.
Page 36 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.6 Wiring of external switch signal input This product can be monitored by sampling the signal of the external switch prepared by the user. Table 3-6 Power supply, contact specifications Name Terminal No. Specification 5, 6, 7 (24 VDC) Power supply output...
Page 37 HRX-OM-W032 Chapter 3 Transport and Setting Up Prepare the flow switch described in the Table 3-8(sold separately). Depending on the external switch output type, connect the wire the switch to the terminals for contact input signal as shown below. (This is an example of wiring. Refer to the Operation Manual Communication Function for further details.) Flow switch Blue (DC COM)
Page 38 HRX-OM-W032 Chapter 3 Transport and Setting Up  Setting items Table 3-9 shows the setting items of the external switch. For details, refer to “5.21 Communication Function”. Table 3-9 Setting list of the external switch Initial value Reference Display Item Category Example (Default setting)
Page 39 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.7 Wiring of contact output signal Contact output signals are the signals that output the status of this product. Contact specification of each signal output is shown below. Be sure to turn OFF the breaker of the facility power supply (the user's machine power supply) before wiring.
Page 40 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.8 RS-485 communication wiring Serial communication RS-485, operation Start/Stop, setting and reading of circulating fluid temperature, and reading of alarm condition can be performed by remote control. Refer to Operation Manual Communication Function for more details. ...
Page 41 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.3.9 RS-232C communication wiring Serial communication RS-232C, operation start/stop, setting and reading of circulating fluid temperature, and reading of alarm condition can be performed by remote control. Refer to Operation Manual Communication Function for more details. ...
Page 42 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.4 Piping  Connect piping firmly. Incorrect piping might cause leakage of supplied or drained fluid and wet surrounding area and facility.  Use caution not to allow dust and foreign matter to enter the water circuit, etc.
Page 43 HRX-OM-W032 Chapter 3 Transport and Setting Up  How to connect piping Hold the each piping port with a wrench and tighten the piping. Connection port Sealant Note: When using the Y strainer of the accessory, fasten it on the return port.
Page 44 HRX-OM-W032 Chapter 3 Transport and Setting Up  Recommended piping circuit Thermo-chiller automatic fluid Fluid supply fill port Circulating fluid outlet User’s equipment Circulating fluid return port Overflow port To wastewater collection pit Tank drain port Fig. 3-16 Recommended piping circuit Description Size Valve...
Page 45 HRX-OM-W032 Chapter 3 Transport and Setting Up Circulating Fluid Supply 3.5.1 Automatic water fill function  When clear water is used, refer to “7.1 Quality Control of Circulating Fluid and Facility Water”.  When ethylene glycol aqueous solution is used, dilute pure ethylene glycol with water.
Page 46 HRX-OM-W032 Chapter 3 Transport and Setting Up  Ethylene glycol aqueous solution When ethylene glycol aqueous solution is used, prepare the ethylene glycol aqueous solution separately. Refer to "3.2.2 Operation at low ambient temperature or low circulating fluid temperature" for the concentration of the ethylene glycol aqueous solution. To control the concentration of the ethylene glycol aqueous solution, a densitometer is available (sold separately) from SMC.
Page 47 HRX-OM-W032 Chapter 3 Transport and Setting Up 3.5.2 Fluid supply without using the automatic water fill function To supply the circulating fluid without using automatic water fill function, remove the upper panel on the right side, and supply the fluid to the water fill port on top of the tank.
Page 48 HRX-OM-W032 Chapter 3 Transport and Setting Up Supply the circulating fluid to the water fill port.  Confirm that the fluid level is between “HIGH” and “LOW” levels of the fluid level gauge. If it exceeds the specified level, the circulating fluid will overflow.
Page 49 HRX-OM-W032 Chapter 3 Transport and Setting Up Option K “Water fill port” 3.5.3  Confirm that the fluid level is between “HIGH” and “LOW” levels of the fluid level gauge. If it exceeds the specified level, the circulating fluid will overflow. ...
Page 51 HRX-OM-W032 Chapter 4 Starting the Product Chapter 4 Starting the Product Only people who have sufficient knowledge and experience about the product and its accessories are allowed to start and stop the product. 4.1 Before Starting Check the following points before starting the product. ...
Page 52 HRX-OM-W032 Chapter 4 Starting the Product 4.2 Preparation for Start 4.2.1 Power supply Turn ON the breaker of the user’s power supply. When the product is switched ON, the operation panel display operates as shown below: ● The initial screen (HELLO screen) is displayed for 8 seconds on the operation display panel.
Page 53 HRX-OM-W032 Chapter 4 Starting the Product 4.3 Preparation of Circulating Fluid Supply to User’s Equipment Circulating fluid is supplied only inside of the product at the time of installation of the thermo-chiller. When the product starts operation in this condition, circulating fluid level will be reduced as the fluid in the level gauge goes down due to the fluid supply to the user's equipment from the thermo-chiller, and the additional fluid needs to be supplied to the thermo-chiller.
Page 54 HRX-OM-W032 Chapter 4 Starting the Product Press the [RESET] key (press the [▼] and [▲] keys simultaneously) to stop the alarm buzzer. Blinks Press these keys simultaneously. Turns ON Fig. 4-5 How to stop the alarm buzzer Reset alarms on the ”Alarm menu” screen. Alarm reset is not accepted from any screen except the "Alarm menu"...
Page 55 HRX-OM-W032 Chapter 4 Starting the Product Press the [RESET] key (press the [▼] and [▲] keys simultaneously) to reset the alarm. Pressing these keys at the same time resets the alarm (low level in tank) and turns OFF the [ALARM] LED (red) and the [ ] LED.
Page 56 HRX-OM-W032 Chapter 4 Starting the Product 4.4 Operation Start and Stop 4.4.1 Starting the product Allow at least five minutes before restarting the product. Before starting, check the items specified in “4.1 Before Starting” If any alarm light remains ON, refer to “Chapter 6 Alarm Notification and Troubleshooting”...
Page 57 HRX-OM-W032 Chapter 4 Starting the Product 4.4.2 Stopping the product Press the [RUN/STOP] key on the operation panel. The [RUN] light on the operation panel blinks green at 1 second intervals, and continues operation to prepare to stop. After approximately 20 seconds, the [RUN] light turns OFF and the operation stops completely.
Page 58 HRX-OM-W032 Chapter 4 Starting the Product 4.5 Check Items during Startup Check the following items after starting the product. When any abnormality is found, press the [STOP] key to stop the product operation, and then turn OFF the breaker of the user’s power supply.
Page 59 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Chapter 5 Display and Setting of Various Functions Read and understand this manual carefully before changing the settings. 5.1 List of Functions The product can have the displays and settings shown in Table 5.1 List of functions.
Page 60 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.2 Function 5.2.1 Key operations Fig. 5-1 “Key operation (1/2)” and “Key operation (2/2)” show the key operations of the thermo-chiller. By pressing the [SEL] key for 1 second, the PV display blinks and the function of [SEL] key is reversed to allow reverse scrolling through the menu.
Page 61 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions MENU MENU MENU Alarm setting Communication menu setting menu Contact input Alarm Unused Communicati signal 1 Delay buzzer on mode MENU MENU timer (time sound Press the Press the delay) of 2 sec.
Page 62 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.2.2 List of parameters “Table 5.2-1 List of parameters (1/3)” to “Table 5.2-3 List of parameters (3/3)” show the parameters of the thermo-chiller. Table 5.2-1 List of parameters (1/3) Reference Display Content Default* Category...
Page 63 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.2-2 List of parameters (2/3) Reference Display Content Default Category page Warming up function 5.17 ---- Set temperature for warming up C (68.0 ﾟ F) 20.0 Setting Anti-snow coverage 5.18 menu Dust-proof filter accumulated time reset 5.16...
Page 64 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.2-3 List of parameters (3/3) Reference Display Content Default Category page Temperature alarm monitoring method Operation setting for the monitoring start timer ---- (0) Threshold time setting for the range over detection timer Alarm settings for the compressor P.RUN...
Page 65 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.3 Main Display 5.3.1 Main display The current temperature and the set temperature of the circulating fluid are shown on the main display, and the main display allows the set temperature to be changed.
Page 66 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.4 Alarm Menu 5.4.1 Alarm menu The alarm menu display appears when an alarm is generated. The alarm menu is not accessible when no alarm has been generated. Refer to “Chapter 6 Alarm Notification and Troubleshooting” for details of the alarms. 5.4.2 Items shown on the alarm menu display The alarm menu display appears when an alarm is being generated.
Page 67 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.5 Check Monitor Menu 5.5.1 Check monitor menu As a part of the daily inspection, the temperature, pressure and accumulated operating time can be checked. Please use this for confirmation of your daily inspection. 5.5.2 Checking with the check monitor menu The table below explains the check items in the check monitor menu.
Page 68 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Checking: Circulating fluid temperature at the heat exchanger inlet Press the [SEL] key once. Display of the circulating fluid temperature at the heat exchanger inlett appears on the digital display. Displays the circulating fluid temperature returning from the user’s equipment. Checking: Inlet refrigerant temperature to the compressor.
Page 69 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Checking: Refrigerant circuit pressure on the low pressure side Press the [SEL] key once. Display of the refrigerant circuit pressure on the low pressure side appears on the digital display. Checking: Accumulated operating time of the pump Press the [SEL] key once.
Page 70 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Checking: Accumulated operating time of the compressor Press the [SEL] key once. Display of the accumulated operating time of the compressor appears on the digital display. Refer to “Table 5.5-2 Time display” for the display. AL30 Compressor maintenance alarm is generated when the accumulated operating time of the ) (when set to “A.RUN”).
Page 71 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.6 Key-lock 5.6.1 Key-lock The keys can be locked to prevent the settings being changed by an operator error. Operation can be started / stopped by operating the “RUN/STOP” key even when the key-lock is being activated. If you try to change the set value with the “▲”...
Page 72 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.6.2 Key-lock setting / checking The table below explains the setting items of the key-lock function and the initial values. Table 5.6-1 Set items for key-lock Display Item Contents Default Sets the key-lock function ON. Key-lock When the key-lock function is set ON, no other settings are available.
Page 73 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.7 Run Timer and Stop Timer Function 5.7.1 Run timer and stop timer function This function starts or stops operation of the product automatically when the set time has passed. The time can be set according to the user’s working hours.
Page 74 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Timer setting examples Run timer Set to start 3 hours later ・・・ Stopped Operating ↑ Starts operating Stop timer Set to stop 3 hours later ・・・ Operating Stopped ↑Stops operating Run timer Stop timer Set to start 2 hours later, ・・・...
Page 75 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.7.2 Setting and checking of run timer and stop timer function The table below explains the setting items of the run/stop timer and the initial values. Table 5.7-1 Setting of run timer and stop timer Display Item Contents...
Page 76 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/checking: Stop timer Press the [SEL] key once. Setting screen of the stop timer appears on the digital display. Select stop timer with the [▲] key or the [▼] key, and press [SEL] key to enter. Table 5.7-3 Setting of the stop timer Set value Explanation...
Page 77 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.8 Ready Completion (TEMP READY) Signal 5.8.1 Ready completion (TEMP READY) signal This function sets a bandwidth for the set circulating fluid temperature (range between the upper and lower limit temperatures) to notify the user by communication that the circulating fluid temperature has reached the band range.
Page 78 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.8.2 Ready completion (TEMP READY) signal setting / checking The table below shows explanation and default of the set items for ready completion (TEMP READY) signal. Table 5.8-1 Set items for ready completion (TEMP READY) signal Display Item Content...
Page 79 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Select READY bandwidth with [▲] key or [▼] key, and enter by pressing the [SEL] key. Table 5.8-3 Set value for READY mode Set value Explanation Default Sets READY bandwidth (range between the upper and lower limit temperatures) for the set circulating fluid temperature.
Page 80 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.9 Offset Function 5.9.1 Offset function This is a function that controls the "circulating fluid display temperature" and the "target temperature for chiller temperature control" by shifting the temperature for the set offset value. This product has three different modes of offset functions (MODE 1 to 3).
Page 81 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.9.2 Usage example of offset function Suppose that the circulating fluid discharge temperature of this thermo-chiller is 30 C and the circulating fluid temperature that enters the user's equipment is 29 C due to temperature drop while it is transferred to the user's equipment in the piping: This product...
Page 82 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions ■ When only the "displayed circulating fluid temperature" needs to be the same as the circulating temperature supplied to the user's equipment: Use "MODE 2" of the offset function, and set the offset temperature to "-1.0" 1.
Page 83 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.9.3 Setting/checking of offset function The table below shows the set items of the offset function and the default values. Table 5.9-2 Set items for offset function Display Item Contents Default Offset mode Offset mode is set ON/OFF.
Page 84 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Offset temperature Press the [SEL] key once. Setting screen of offset temperature appears on the digital display. Set offset temperature with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.9-4 Offset temperature setting Set value Explanation...
Page 85 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.10 Operation Restoration after Power Failure 5.10.1 Operation restoration function after power failure When the power supply is cut due to power failure, etc., this function restarts the operation when the power supply restores, retaining the conditions before the power cut.
Page 86 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.10.2 Setting/checking of the operation restoration function The table below shows the setting items of the operation restoration after power failure function and the default setting. Table 5.10-1 Set item for operation restoration after power failure function Display Item Contents...
Page 87 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.11 Anti-freezing Function 5.11.1 Anti-freezing function Keep the power supply ON for this function. This function does not start when the power is OFF. This function prevents freezing of the circulating fluid while the product stops operation in the winter season with heat generated by automatically operating the pump.
Page 88 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.11.2 Setting/checking of anti-freezing function The table below shows the set item of the anti-freezing function and the default setting. Table 5.11-1 Set item for anti-freezing function Display Item Contents Default Anti-freezing Sets anti-freezing function ON/OFF.
Page 89 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.12 Key Operation Sound Setting 5.12.1 Key operation sound setting Operation sound (click sound) of the keys on the operation panel can be set ON/OFF. Default setting is key operation sound “ON”. 5.12.2 Setting/checking of the key operation sound The table below shows the set item for key operation sound and the default setting.
Page 90 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.13 Temperature Unit Change 5.13.1 Temperature unit change The temperature unit used for the thermo-chiller can be selected Celsius C) or Fahrenheit ( F). This setting determines the temperature unit which is displayed/output.
Page 91 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.14 Pressure Unit Change 5.14.1 Pressure unit change Pressure unit used for the thermo-chiller can be selected MPa or PSI. This setting determines the pressure unit which is displayed/ output. The default setting is MPa.
Page 92 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.15 Data Reset Function 5.15.1 Data reset function Resets the values set by user to the default values. Note that the accumulated operating time will not be reset. This function resets all the set values. Use caution when operating this function.
Page 93 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.16 Accumulated Operating Time Reset Function 5.16.1 Accumulated operating time reset function The alarms shown below will be generated to notify the maintenance timing. The thermo-chiller does not stop operation for these alarms. ●...
Page 94 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Press the [SEL] key 14 times. Resetting screen of the pump accumulated operating time appears on the digital display. with [▲] key or [▼] key, and press [SEL] key to enter. Select Select and press [SEL] key to enter, and the accumulated operating time of the pump will be reset.
Page 95 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Reset of accumulated operating time Press and hold the [MENU] key for approximately 2 seconds. Repeat pressing the key until the key-lock setting screen [ ] appears on the digital display. Press and Press and hold [MENU]...
Page 96 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions with [▲] key or [▼] key, and press [SEL] key to enter. Select Select and press [SEL] key to enter, and the accumulated operating time of the dust-proof filter will be reset. The display returns to the main menu. Table 5.16-5 Reset setting Set value Explanation...
Page 97 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.17 Warming Up Function 5.17.1 Warming up function Keep the power supply ON for this function. This function does not operate when the power is OFF. This function maintains the circulating fluid temperature to the set warming-up temperature with heat generated by automatically operating the pump in the winter season or at night.
Page 98 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.17.2 Setting/checking of warming up function The table below shows the setting items of the warming up function and the default setting. Table 5.17-1 Set item for warming up function Display Item Content Default...
Page 99 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set the warming up temperature with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.17-3 Setting of warming up temperature Set value Explanation Default Setting and checking are not available when the warming up function is set OFF.
Page 100 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.18 Anti-Snow Coverage Function 5.18.1 Anti-snow coverage function Keep the power supply ON for this function. This function does not operate when the power is OFF. This function prevents snow coverage on the exhaust port on top of the product during the winter time by automatically operating the fan periodically.
Page 101 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.18.2 Setting/checking of anti-snow coverage function The table below shows the set item of the anti-snow coverage function and the default setting. Table 5.18-1 Set item for anti-snow coverage function Display Item Content Default...
Page 102 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.19 Alarm Buzzer Sound Setting 5.19.1 Alarm buzzer sound setting This sets whether a warning sound is made or not when alarm signal is output. The default setting is buzzer sound ON. 5.19.2 Setting/checking of alarm buzzer sound The table below shows the set item of the alarm buzzer sound and the default setting.
Page 103 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.20 Alarm Customizing Function 5.20.1 Alarm customizing function Operation and trigger level when an alarm signal is output can be customized. Perform settings depending on the application of the user. Refer to “Table 5.20-1 Default alarm settings and customizing (1/4)” and “Table 5.20-4 Default alarm settings and customizing (4/4)”...
Page 104 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.20-2 Default alarm settings and customizing (2/4) 1. Operation during alarm 2. Threshold for alarm generation and  4 generation other settings Code Alarm name Display Display Default Settable range Set temperature 1.0 to 34.0 (33.8...
Page 105 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.20-3 Default Alarm setting and customizing (3/4) 1. Operation during alarm 2. Threshold for alarm generation and generation other settings Code Alarm name Display Display Default Settable range Refrigerant circuit ●...
Page 106 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.20-4 Default alarm settings and customizing (4/4) 1. Operation during alarm 2. Threshold for alarm generation generation and other settings Code Alarm name Settable Display Display Default range Set time Dust-proof filter ●...
Page 107 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.20.2 Setting and checking of the alarm customizing function The table below shows the set items of the alarm customizing function and the default settings. Table 5.20-5 Default settings of the alarm customizing function (1/3) Alarm 1 Display...
Page 108 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.20-6 Default settings of the alarm customizing function (2/3) Alarm 1 Display Content Change Default Code Alarm name Setting function for Contact input 1 signal Product operation while the AL31 A.STP "Contact input detection...
Page 109 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Table 5.20-7 Default settings of the alarm customizing function (3/3) Alarm Alarm  1 Display Content Default Display Code Alarm name Operation setting when "Circulating fluid Circulating fluid Product operation AL25 A.STP discharge pressure discharge pressure...
Page 110 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Press and hold the [MENU] key for approximately 2 seconds. Repeat pressing the key until the alarm buzzer sound setting screen [ ] appears on the digital display. Press and Press and Press and hold hold...
Page 111 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Circulating fluid discharge temp. rise" alarm is generated Press the [SEL] key once. Operation setting screen when "Circulating fluid discharge temp. rise" alarm is generated appears on the digital display. Set the product operation when "Circulating fluid discharge temp.
Page 112 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Circulating fluid discharge temp. drop" alarm is generated Press the [SEL] key once. Operation setting screen when "Circulating fluid discharge temp. drop" alarm is generated appears on the digital display. Set the product operation when "Circulating fluid discharge temp.
Page 113 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Circulating fluid discharge pressure rise" alarm is generated Press the [SEL] key once. Operation setting screen when "Circulating fluid discharge pressure rise" alarm is generated appears on the digital display. Set the product operation when "Circulating fluid discharge pressure rise"...
Page 114 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Circulating fluid discharge pressure drop" alarm is generated Press the [SEL] key once. Operation setting screen when "Circulating fluid discharge pressure drop" alarm is generated appears on the digital display. Set the product operation when "Circulating fluid discharge pressure drop"...
Page 115 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Communication error" alarm is generated Press the [SEL] key once. Operation setting screen when "Communication error" alarm is generated appears on the digital display. Set operation when "Communication error" alarm is generated with [▲] key or [▼] key, and confirm by pressing “SEL”.
Page 116 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set the product operation when "Contact input 1 signal detection" alarm is generated with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.20-19 Operation setting when "Contact input 1 signal detection" alarm is generated Set value Explanation Default...
Page 117 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set the product operation when "DC line fuse cut" alarm is generated with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.20-21 Operation setting when "DC line fuse cut" alarm is generated Set value Explanation Default...
Page 118 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Monitoring start timer Press the [SEL] key once. Setting screen of the monitoring start timer is displayed on the digital display. Set monitoring start timer with the [▲] key or the [▼] key, and press [SEL] key to enter. Table 5.20-23 Setting of the monitoring start timer Set value Explanation...
Page 119 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.20.3 Setting of temperature alarm monitoring method and alarm generation timing Examples of temperature alarm monitoring method setting and alarm generation timing are shown below.  When "Automatic monitoring" is selected; [1] Circulating fluid temperature when starting operation: Approximately 20 Circulating fluid set temperature : 15...
Page 120 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions  When "Automatic monitoring + Monitoring start timer" is selected [1] Circulating fluid temperature when starting operation: Approximately 20 Circulating fluid set temperature : 15 [3] "AS.21: Temperature alarm monitoring method": Select "Automatic monitoring + Monitoring start timer".
Page 121 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation when compressor related alarms are generated Press the [SEL] key once. Setting screen of the product operation when compressor related alarms are generated appears on the digital display. Set the product operation when the compressor related errors are generated with the [▲] key or [▼] key.
Page 122 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Circulating fluid discharge pressure sensor error" alarm is generated Press the [SEL] key once. Operation setting screen when "Circulating fluid discharge pressure sensor failure" alarm is generated appears on the digital display. Set the product operation when "Circulating fluid discharge pressure sensor failure"...
Page 123 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Fan maintenance" alarm is generated Press the [SEL] key once. Operation setting screen when "Fan maintenance" alarm is generated appears on the digital display. Set the product operation when "Fan maintenance" alarm is generated with [▲] key or [▼] key, and press [SEL] key to enter.
Page 124 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Operation setting when "Dust-proof filter maintenance" alarm is generated Press the [SEL] key once. Operation setting screen when "Dust-proof filter maintenance" alarm is generated appears on the digital display. Set the product operation when "Dust-proof filter maintenance" alarm is generated with [▲] key or [▼] key, and press [SEL] key to enter.
Page 125 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Monitoring time for maintenance of dustproof filter Press the [SEL] key once. Setting screen of the monitoring time before "Dust-proof filter maintenance" alarm is generated is displayed on the digital display. Set the monitoring time before the "Dust-proof filter maintenance"...
Page 126 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions 5.21 Communication Function 5.21.1 Communication function Contact input/output and serial communication can be performed. Refer to the Operation Manual Communication Function for more details. 5.21.2 Setting/checking of communication function The table below shows the set items of the communication function and default settings.
Page 127 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Communication mode Press and hold the [MENU] key for approximately 2 seconds. Repeat pressing the key until the communication mode setting screen [ ] appears on the digital display. Press and Press and Press and hold [MENU]...
Page 128 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Select a serial communication protocol with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-3 Setting of serial communication protocol Set value Explanation Default ✓ MODBUS protocol Simple communication protocol 1 ...
Page 129 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Slave addresses (MODBUS) Press the [SEL] key once. Setting screen of slave addresses (MODBUS) is displayed on the digital display. Set slave addresses (MODBUS) with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-6 Slave address settings Set value Explanation...
Page 130 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set slave addresses (simple communication protocol) with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-8 Setting of slave addresses Set value Explanation Default Setting/checking is possible only when the serial protocol setting is simple communication protocol.
Page 131 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set BCC (simple communication protocol) with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-10 BCC setting Set value Explanation Default Setting/checking is possible only when the serial protocol setting is simple communication protocol.
Page 132 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Perform setting for parity check (simple communication protocol) with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-12 Parity check setting Set value Explanation Default Setting/checking is possible only when the serial protocol setting is simple communication protocol.
Page 133 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set responce delay time (simple communication protocol) with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-14 Setting of response delay time Set value Explanation Default Setting/checking is possible only when the serial protocol setting is simple communication protocol.
Page 134 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Perform setting for the contact input signal 1 with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-16 Setting for contact input signal 1 Set value Explanation Default No signal input ✓...
Page 135 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set time delay for the contact input signal 1 delay timer for reading with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-18 Setting of time delay for contact input signal delay timer for reading Set value Explanation Default...
Page 136 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Perform setting of the contact input signal 2 with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-20 Setting of the contact input signal 2 Set value Explanation Default ✓...
Page 137 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Set time delay for the contact input signal 2 delay timer for reading with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-22 Setting of time delay for the contact input signal 2 delay timer for reading Set value Explanation Default...
Page 138 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Select a function with [▲] key or [▼] key, and press [SEL] to enter. Table 5.21-24 Setting for the contact output signal 1 Set value Explanation Default No signal output ✓ Operation status signal output Remote status signal output Ready completion (TEMP READY) signal output...
Page 139 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Selected alarm for contact output signal 1 Press the [SEL] key once. Setting screen of selected alarm of the contact output signal 1 is displayed on the digital display. Set the alarm selected for the contact output signal 1 with [▲] key or [▼] key, and press [SEL] key to enter.
Page 140 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Select a function with [▲] key or [▼] key, and press [SEL] to enter. Table 5.21-27 Setting for the contact output signal 2 Set value Explanation Default No signal output Operation status signal output ✓...
Page 141 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Selected alarm for contact output signal 2 Press the [SEL] key once. Setting screen of selected alarm of the contact output signal 2 is displayed on the digital display. Set the alarm selected for the contact output signal 2 with [▲] key or [▼] key, and press [SEL] key to enter.
Page 142 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Select a function for the contact output signal 3 with [▲] key or [▼] key, and press [SEL] key to enter. Table 5.21-30 Function setting for the contact output signal 3 Set value Explanation Default...
Page 143 HRX-OM-W032 Chapter 5 Display and Setting of Various Functions Setting/Checking: Selected alarm for contact output signal 3 Press the [SEL] key once. Setting screen of the selected alarm of the contact output signal 3 is displayed on the digital display. Set the alarm selected for the contact output signal 3 with [▲] key or [▼] key, and press [SEL] key to enter.
Page 145 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting Chapter 6 Alarm Notification and Troubleshooting 6.1 Alarm Notification ● The product makes notification in the order shown below when any alarm is generated. The [ALARM] light blinks. ● The alarm buzzer sounds. ●...
Page 146 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting ● When multiple alarms are generated, the alarm codes are displayed one by one by pressing the [SEL] key Alarm with the number ”1” in the SV window on the digital display is the latest alarm.
Page 147 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting 6.2 Alarm Buzzer Stop An alarm buzzer sounds to notify when any alarms are generated. How to stop the alarm buzzer is explained below. ● Confirm that the alarm display is shown. The alarm buzzer can be stopped only on this screen.
Page 148 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting 6.3 Troubleshooting 6.3.1 Alarm contents, causes, and troubleshooting Troubleshooting method varies depending on which alarm has been generated. Refer to ’’ Table 6-1 to 6-3 Alarm codes and troubleshooting’. Instructions to reset the alarms after eliminating the causes of the alarms explained below.
Page 149 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting Table 6-1 Alarm codes and troubleshooting (1/3) Operation Cause/Countermeasure Alarm Alarm name status (Press the reset key after eliminating the code (Default) cause.) Fluid level shown by the fluid level meter has AL01 Low level in tank A.STP fallen.
Page 150 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting Table 6-2 Alarm codes and troubleshooting (2/3) Alarm Cause / Remedy Code Alarm name operation (Press the reset key after eliminating the (Default) cause.) Controller failure. AL20 Memory error A.STP Ask for service for the controller. Fuse for the power supply output of the contact input/output connector has blown.
Page 151 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting Table 6-3 Alarm codes troubleshooting (3/3) Alarm Cause / Remedy Code Alarm name operation (Press the reset key after eliminating the (Default) cause.) Notice of the periodical maintenance. Clean the dust-proof filter. 1 to 9999 Reset the operation cumulated Dust-proof filter AL40...
Page 152 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting 6.3.2 How to release the thermal relay trip and circuit protector trip Be sure to lock out and tag out the breaker of the facility power supply (user's power supply) before wiring. Turn OFF the earth leakage beaker of the user's power supply. Remove four screws to remove the front panel for the electrical unit.
Page 153 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting Confirm if the thermal relay or the circuit protector are tripped. If the thermal relay tripped, push the reset button. If the circuit protector tripped, make it ON by pushing up the lever. Circuit protector for DC power supply Circuit protector for...
Page 154 HRX-OM-W032 Chapter 6 Alarm Notification and Troubleshooting 6.4 Other Errors  How to check other errors Possible causes and countermeasures for failures with no alarm number display are shown in ’’Table 6-5 ’’. Table 6-5 Possible causes and countermeasures for failures without alarm number Content of failure Possible cause Countermeasure...
Page 155 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning Chapter 7 Control, Inspection and Cleaning 7.1 Quality Control of Circulating Fluid and Facility Water Use specified fluids only. If other fluids are used, they may damage the product, causing fluid leakage, or result in hazards such as electric shock or leakage of electricity.
Page 156 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning 7.2 Inspection and Cleaning  Do not perform key operation or setting of this equipment with wet hands. Do not touch the electrical parts such as the power supply plug. It may cause an electric shock. ...
Page 157 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning 7.2.2 Monthly check Table 7-3 Contents of monthly check Item Contents of check Clean the ventilating Make sure the ventilating grilles are not clogged Ventilating condition grilles. with dust, etc.  Cleaning of air ventilation port (Air cooled type.) If the fins of the air-cooled condenser become clogged with dust or debris, heat radiation performance declines.
Page 158 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning  Cleaning of dust-proof filter Clean the dust-proof filters with a long bristled brush or by air blow. Cleaning with brush Cleaning by air blow Fig. 7-2: Cleaning of the dust-proof filter  Mounting of dust-proof filters Reassemble the filters in the reverse order to the removing procedure.
Page 159 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning  Replacement of circulating fluid ● Replace the circulating fluid with new clean fluid periodically, or it may get algae or decompose. ● Circulating fluid to be supplied in the tank should satisfy the water quality specified in “Table 7-1: Quality criteria for clean water (tap water)”.
Page 160 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning 7.2.4 Inspection during winter season Keep the power supply ON for these functions. These functions do not start when the power is OFF.  Anti-freezing function This function prevents freezing of the circulating fluid while the product stops operation in the winter season with heat generated by automatically operating the pump.
Page 161 HRX-OM-W032 Chapter 7 Control, Inspection and Cleaning 7.4 Operation Stop for an Extended Period of Time If there is a concern that the product will not be operated for an extended period of time or there is a possibility of freezing in the winter time, take the measures according to the instructions shown below.
Page 163 HRX-OM-W032 Chapter 8 Documents Chapter 8 Documents 8.1 Specifications 8.1.1 HRS200-A-46-S Table 8-1 Specifications Model HRS200-A-46-S Cooling method Air-cooled refrigeration Refrigerant R410A (HFC) Quantity of refrigerant 1.65 Control method PID control  1  2  8 Ambient temperature -5 to 45 ...
Page 164 HRX-OM-W032 Chapter 8 Documents 8.1.2 Refrigerant with GWP reference Table 8-2 Refrigerant with GWP reference Global Warming Potential (GWP) Revised Fluorocarbons Refrigerant Regulation (EU) No 517/2014 Recovery and Destruction Law (Based on the IPCC AR4) （Japanese law） R134a 1,430 1,430 R404A 3,922 3,920...
Page 165 HRX-OM-W032 Chapter 8 Documents 8.2 Dimensions 752mm(29.6in) 954mm(37.6in) Fig. 8-1: Dimensions 1020mm(40.2in) 8xφ12mm(0.5in) 670mm(26.4in) 138mm(5.4in) 19mm (954mm)(37.6in) (0.7in) 984mm(38.7in) Dimensions for the positions of the anchor bolts (View a-a) HRS Series 8.2 Dimensions...
Page 166 HRX-OM-W032 Chapter 8 Documents 8.3 Flow Diagram Ventilation DC inverter Air-cooled Temp. sensor Dryer condenser (H/X inlet) Press. sensor (Ref. high press.) Heat exchanger Ventilation Circulating fluid Expansion circuit valve A Expansion Inverter pump valve B Pump Temp. sensor Ball tap (Ref.
Page 167 HRX-OM-W032 Chapter 8 Documents 8.4 Cooling Capacity Circulating fluid temperature [℃] Circulating fluid temperature [℃] 60Hz 50Hz Fig. 8-3: Cooling Capacity 8.5 Pump Capacity Usable flow rate range Circulating fluid outlet (60Hz) Circulating fluid outlet (50Hz) Circulating fluid return 100 110 120 130 Circulating fluid flow [L/min] Fig.
Page 168 HRX-OM-W032 Chapter 8 Documents 8.6 Types of Hazard Labels To ensure the safety of the operators, potential hazards are classified and marked with warning labels. Read this section before starting any work on the product.  Electric shock warning This symbol stands for danger of electric shock. The product has some uncovered terminals applied with high voltage inside.
Page 169 HRX-OM-W032 Chapter 8 Documents 8.6.1 Positions of danger warning label Confirm the positions of the danger warning labels on the product to show the potential danger before starting operation. Fig. 8-5: Positions of danger warning label Fig. 8-6: Positions of danger warning label HRS Series 8.6 Types of Hazard Labels...
Page 170 HRX-OM-W032 Chapter 8 Documents 8.7 Standards This product complies with the standards shown below. Table 8-3 Standards Standard EMC Directive 2014/30/EU CE Mark Machinery Directive 2006/42/EC RoHS Directive 2011/65/EU UL/CSA standard UL61010-1 3 edition (NRTL certified) CSA C22.2 No.61010-1 3 edition 8.7 Standards HRS Series...
Page 171 HRX-OM-W032 Chapter 8 Documents 8.8 Sample DoC. Sample DoC HRS Series 8.8 Sample DoC.
Page 172 HRX-OM-W032 Chapter 8 Documents 8.9 Daily Check Sheet 8.9 /Daily Check Sheet HRS Series 8-10...
Page 173 HRX-OM-W032 Chapter 9 Product Warranty Chapter 9 Product Warranty 1. Period The warranty period of the product is 1 year in service or 1.5 years after the product is delivered whichever comes first. 2. Scope For any failure reported within the warranty period which is clearly SMC’s responsibility, replacement parts will be provided.
Page 174 HRX-OM-W032 Chapter 9 Product Warranty 6. Request to Customers Proper use and maintenance are essential to assure safe use of this product. Be sure to satisfy the following preconditions. Please note that SMC may refuse to carry out warranted repair if these preconditions have been disregarded.
Page 175 Revision Rev. G：Jan. 2021 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 https://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. ©...

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