Accessories (RKE-B Heavy Duty DC Models)

Standard Equipment Items

Intelligent Touch Panel

Intelligent Touch Panel Display functionality is included as standard equipment. Standard functionality includes a calendar timer.

Timer Setting Screen

Timer Setting Screen
Any start/stop time settings can be set.

Menu Screen

Menu Screen

Sample EnglishMenu Screen

Sample English Menu Screen

Liquid Temp Upper/Lower Limit Warning

A warning message can be displayed or an audible alarm sounded when the liquid temperature goes beyond a set upper or lower amount beyond the set temperature.

Liquid Temp Upper/Lower Limit Warning

Expanded Operable Liquid Operating Range

Operation is now possible at temps as low as 0 °C when using antifreeze. ※ A 30 to 40% ethylene glycol solution.

Expanded Operable Liquid Operating Range
Note: Please take into consideration that there will be a drop in cooling capacity of 10% if using a 30 to 40% ethylene glycol solution.

Earth Leakage Breaker (ELB)

An earth leakage breaker is included as standard equipment as a preventive measure in order to help ensure safety.

Earth Leakage Breaker (ELB)
※ Please see the "Alarm Processing Chart" below for details.

Casters

Casters included as standard equipment on RKE3750B-V(W)-G2 models only. Casters are sold as option equipment for RKE5500B-V(W) and RKE7500B-V(W) models.

Casters

Optional Items to be Installed On-Site

Water Filter Equipment

 

Water Filter Equipment
Helps to prevent clogging within the water circuit of chillers and other equipment. Can also be used as a pre-filter for water purification equipment.

Ion Exchange Resin Purifying Equipment

[For Circulating Water Setups]

[For Circulating Water Setups]
When installed as a bypass circuit within the chilled water circulation circuit, it can prevent rises in electrical conductivity in the circulating water.

Ion Exchange Resin Purifying Equipment

[For Supplied Water Setups and Purification]

[For Supplied Water Setups and Purification]
Can suppress sharp rises in electrical conductivity of circulating water that occurs when supplying water to the water tank.

Remote Control (Wired)

 

Remote Control (Wired)
Remote controls for B type units include the connecting cable. The set model number differs depending on the cable length.
※ Please see the "Alarm Processing Chart" below for details.

Snow Protection Hood

Snow Protection Hood
The Snow Protection Hood supports outdoor installations in snowy regions.

Wind Shield

Wind Shield
The Wind Shield is used for outdoor installations. The hood also helps to prevent dust and dirt from entering the product.

Manufacturer Optional Items

Heater

At times when the liquid temperature is rising, the heater should be used if high-precision control is required even when the load is low (and there is not the minimum amount of heat required for inverter control).

Tank

Discharge Pump for High Head Applications

High flow rate pump built in. A built-in pump supporting a higher head specification is available.

Discharge Pump for High Head Applications
Tank
Discharge Pump for High Head Applications

Leakage Detection Spec.

An alarm will be activated if, for some reason, a water leak occurs.

Leakage Detection Spec.

External Surface Paint Thickness

The thickness of the applied outer surface paint can be changed to suit particular applications or needs.

External Surface Paint Thickness
Leakage Detection Spec.
External Surface Paint Thickness

Cleanroom (Leakage Alarm Spec.)

Modification to add leakage detection so that product can be used with cleanrooms and similar installations.

※ Please see the "Alarm Processing Chart" below for details.

Cleanroom (Leakage Alarm Spec.)

Equipment List

Model Name (RKE Series) Column Notation Key

 - 
Not Supported
On-site Installed Option (Part number will differ depending on product model. Please ask for details.)
Manufacturer Optional Item
凡例用
Click for relevant cautions.
凡例用
Click for further information.
Equipment List

画像をタップすることで拡大表示されます。

Equipment List
Function List Model Name (RKE Series)
Corresponding Item Comments 3
7
5
0
B
|
V
5
5
0
0
B
|
V
7
5
0
0
B
|
V
1
1
0
0
0
B
|
V
1
5
0
0
0
B
|
V
3
7
5
0
B
|
V
W
5
5
0
0
B
|
V
W
7
5
0
0
B
|
V
W
1
1
0
0
0
B
|
V
W
1
5
0
0
0
B
|
V
W
Operating
Environment
Low Temperature Heat Transfer Medium / Nybrine (Z-1) 30 to 40% Solution ※1 Cannot be mixed with deionized water.  
30 to 40% ethylene glycol solution ※1  
Deionized (Conditioned) Water
Electrical Conductivity: 1 µS/cm or higher
  No copper ion  
Working Liquid (Chilled Water) Temp 3 to 35 ℃    
0 to 35 ℃ 3Use a 30 to 40% concentration of low-temperature heat transfer medium (antifreeze).  
Ambient Temperature Low Temp Spec.: ?20 to 45 ℃ (Air Cooled), 2 to 45 ℃ (Water Cooled) Be careful of freezing at low temperatures as well as abnormal temperature rises due to placement in direct sunlight.  
High Temp Area Spec.: up to 50 ℃        
Freeze-Prevention Mode This function operates the discharge pump in order to prevent drops in water temperature and freezing during winter months when the product is not otherwise operating.
When enabled, the discharge pump will operate when the water temperature falls to 3 ℃ or below.
Can be enabled or disabled via the intelligent touch panel. Note however that it cannot be used along with the Warm Up mode.  
Warm Up Mode This function will automatically operate the discharge pump at times when the product is otherwise not operating when the ambient temperature is low, for example during winter months, in order to prevent the water temperature from dropping too much and in order to help maintain the set water temperature. When this mode is enabled, the water temperature can be set within the temperature range of 10 to 35 ℃ as desired. Can be enabled or disabled via the intelligent touch panel. Note however that it cannot be used along with the Freeze-Prevention mode.  
Low Noise Mode ※2 This function will limit the upper speed of the fan, thus reducing the fan ventilation noise. Can change between    
Outside Installation IPX4 Equiv. Rating Installation in direct sunlight, strong wind (8 m/sec or higher,) contact with falling snow, or freezing conditions requires further measures.  
Snow Protection Mode When enabled, and when operation is stopped, the fan will periodically and automatically start in order to blow fallen snow from the upper exhaust port. Can be enabled or disabled via the intelligent touch panel.    
Snow Protection Hood Prevents falling snow from entering the fan intake port.      
Wind Shield As a guideline, use when the wind speed is 8 m/s or higher.      
Cleanroom (Leakage Alarm Spec.) In addition to the standard specification, leakage sensors, pressure resistant piping, refrigerant piping insulation, and water piping insulation are added. Does not take particulate into account.  
Water Leakage Detection Water leakage detector is built in.    
Vibration Reducing Base Reduces transmission of vibration from the chiller.    
Chilled Water Circuit Discharge Pump Specs. High flow rate pump built-in. Replaces the built-in high pressure pump. Specify the required flow rate and pressure.  
Relief Valve (Pressure Valve) Can provide equipment-side pressure protection. Specify the relief pressure required.
Water Tank Water-Level Alarm (Lower limit alarm) Used to avoid water shortages due to evaporation.    
Water Supply Port Open/Close A ball tap is provided in the water tank in order to maintain a uniform water level.    
A ball valve is added to the water supply port. Standard chiller port size, brass or stainless steel.  
Chilled Water Inlet/Outlet Open/Close Gate valves are added to the chilled water inlet and outlet ports. Standard chiller port size, brass or stainless steel.  
Compression fittings are added to the chilled water inlet and outlet ports.    
Chilled Water Circuit Water Filter Water Filter A Assembly Degree of Filtration:
100µm
5 &microm, 10 μm, 20 &microm, and 50 &microm are available as manufacturer options. Operate at 0.5 MPa or lower.
     
Water Filter B Assembly          
Water Filter C Assembly        
Deionizer for Chilled Water Circulation Circuit Deionizer C Assembly Water Quality: 10 µS/cm or lower        
Deionizer D Assembly          
Deionizer E Assembly        
For Chilled Water Supply / Supply Circuit
Deionizing Equipment
Deionizer Assembly for Supply Water Incl. electrical conductivity gauge and flow regulating valve.  
Cooling Water (Condenser Circuit)
Inlet/Outlet Port Open/Close
Gate valves are added to the cooling water inlet and outlet ports. Standard chiller port size, brass or stainless steel.    
Compression fittings are added to the cooling water inlet and outlet ports.      
Power Supply and
Control
Primary Power Supply Voltage 4-Rating:
Three-phase 200 to 220 V ±10% (50/60 Hz)
3-Rating:
Three-phase 200 V (50/60 Hz),
Three-phase 220 V (60 Hz)
  4-Rating 3-Rating
Three-phase 230 V (50 Hz), 380/400/415/440/480 V (50/60 Hz)    
Overload Safety Devices Comes with a built-in multipurpose overload and short circuit protection breaker.   Current Sensitivity: 30 mAA Current Sensitivity: 100 mA Current Sensitivity: 30 mA Current Sensitivity: 100 mA
Power Outage Recovery Operation Setting Selects the product recovery pattern after a power outage.(Manual Recovery / Automatic Recovery / Remote Operation Priority) Action to be taken after recovery can be enabled or disabled via the intelligent touch panel.  
Operation Action Settings "Local Product Control" "Remote Control" "Ext. Communications" "Remote Switch" action can be enabled or disabled. Can be enabled or disabled via the intelligent touch panel.  
Alarm Signal Output Options Can choose the contact state of the remote alarm signal output.(Relay ON or OFF when alarm occurs) Relay ON/OFF setting can be set from the intelligent touch panel.  
Compressor Related Alarm Action Setting In cases where an alarm signal has been generated, this setting allows the user to choose whether the product will completely shut down or if components that are able to operate will continue to do so. Can be set from the intelligent touch panel.  
Audible Alarm Enable/Disable Audible alarm can be enabled or disabled for each audible alarm or warning. The audible alarm can be enabled or disabled via the intelligent touch panel.  
Pump-Only Operation Control Setting Pump-only operation can be enabled/disabled via the main unit, remote control, external communications signal, or the remote switch. Can be enabled or disabled via the intelligent touch panel.  
Settings Lock Setting Control from each of the following can be enabled or disabled: Main Unit, Remote Control, or External Communications Signal. Can be enabled or disabled via the intelligent touch panel.  
Liquid (Chilled Water) Temp Upper/Lower Limit Warning Option The method of abnormal liquid (chilled water) temperature detection can be selected. Can enable or disable the alarm and standby sequence for relative value and absolute value alarms.
※ Regarding the standby sequence, the alarm will be output after startup until the liquid temperature has initially reached a normal value and then later goes outside the normal range.
Can be set from the intelligent touch panel.  
Liquid (Chilled Water) Temp Upper/Lower Limit Warning / Absolute Value Upper Limit The warning will occur if the water temperature goes above this set temperature regardless of the actual set water temperature.
Will be enabled when the absolute values for "Liquid (Chilled Water) Temp Upper/Lower Limit Warning" have been selected.
The water temperature setting can be set from the intelligent touch panel.  
Liquid (Chilled Water) Temp Upper/Lower Limit Warning / Absolute Value Lower Limit The warning will occur if the water temperature goes below this set temperature regardless of the actual set water temperature.
Will be enabled when the absolute values for "Liquid (Chilled Water) Temp Upper/Lower Limit Warning" have been selected.
The water temperature setting can be set from the intelligent touch panel.  
Time Setting for Time Elapsed Warning A warning will be output if the set time is exceeded. This will be useful, for example, during maintenance times.
The product can continue to operate when this occurs.
The number of hours (1 to 30,000 h) can be set from the intelligent touch panel.  
Intelligent
Touch Panel Display Function
Time and Date Display (Year/Month/Date/ Hour:Min (Day)) / Measured Water Temperature, Set Water Temperature, and a graph of the measured water temperature.)
Parameter Mode Display / Water Pressure, Flow Rate, Discharge Pump Operating Frequency and Operating Conditions Display.
Japanese / English / Chinese Display (Selectable)
   
Remote Control By connecting a remote control to the product, the product can be run and other operations can be conducted (limited control) from the product intelligent touch panel (operation panel) in a location away from the product. Operating parameters can also be displayed. Max. cable length: 20 m  
Max. cable length: 50 m
Max. cable length: 100 m
Communications Functions As many as 32 chiller units can be connected via RS-422A or RS-485.
USB connection is also possible to 1 unit. Note that USB operation cannot be combined with RS-422/485 operation.
   
Communications Software Product starting/stopping and confirmation of water temperature changes can be done via a PC.
水温の推移を確認できます。
   
Communications Device Address Enables communications functions and selects the address number of the unit when multiple units are connected together.
The address no. can be arbitrarily set from 0 to 31.
   
Settings Lock Locks and prevents changes to the water temperature setting and other parameter settings. Can enable or disable setting changes from the intelligent touch panel.  
Temperature Warning Signal Output Option Determines the open/closed state of contacts when a temperature warning signal is present. The type of relay output (ON/OFF) when an alarm condition occurs can be selected from the intelligent touch panel.  
External Signal Operation Operation Signal Terminal Block ※1 No-Voltage Contacts  
Voltage Output
(200 V Output)
 
Alarm Signal Terminal Block ※1 No-Voltage Contacts  
Voltage Output
(200 V Output)
 
Remote Operation (No-voltage contacts) ※2 Max. Cable Length:<br />20 m or less<br />(Cable not included.)  
Max. cable length: 100 m  
Remote Operation (24 Vdc Output) ※2
Not available as standard item. Special order required.
Max. cable length: 20 m  
Max. cable length: 100 m  
Remote Operation (200 Vac Input) ※2
Not available as standard item. Special order required.
Max. cable length: 20 m  
Max. cable length: 100 m  
Other Casters 2 locking freewheeling casters and 2 non-locking freewheeling casters   ※3   ※3  
With stopper 2 free-wheeling casters, 2 fixed casters        
4 free-wheeling casters        
With leveling foot 4 free-wheeling casters        
External Surface Coating and Thickness Acrylic resin coating, at least 15 µm thick    
30 µm or greater    
45 µm or greater (Salt Corrosion Prevention Spec.) External screws are stainless steel. Condenser and refrigerant piping coated with polyurethane.  
Color Designation

Please specify color designations using JPMA numbers or Munsell numbers.

  Acrylic resin coating, at least 15 µm thick  
  For other paint/coatings  
Packaging for Export Basic Plywood Packaging Please inquire regarding JIS standard packaging.  
Water Temperature Control Precision ±0.1℃    
Heating Function Used to raise the temperature during product startup. (Built-in 200 Vac electric heater.)

ON/OFF control to the set fluid temperature minus 2 ℃ ±0.5 °C.

Heating output: Selectable among 2/3/4/5 kW, or 5 kW × 2.  
Inspection Manual Japanese    
English    
Test Results Chart Japanese    
English    
Witnessed Inspection      
  1. In addition, there are contacts for the temperature warning signal.
  2. There are 2 operating modes -- product operation, and pump-only operation.
  3. Comes as standard equipment on G-2 spec. models only.