Julabo FL1201 User manual

19514822-V8.doc
English
Operating manual
Recirculating Coolers
FL1201
FL1203
FL1701 FLW1701
FL1703 FLW1703
1.951.4822-V8 11/17 Printed: 13.11.2017
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Congratulations!
You have made an excellent choice.
JULABO thanks you for the trust you have placed in us.
This operating manual has been designed to help you gain an understanding of the operation and
possible applications of our circulators. For optimal utilization of all functions, we recommend that you
thoroughly study this manual prior to beginning operation.
The JULABO Quality Management System
Temperature control devices for research and industry are developed,
produced, and distributed according to the requirements of ISO 9001 and
ISO 14001. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the recirculating cooler and accessories and check for damages incurred
during transit. These should be reported to the responsible carrier, railway, or postal
authority, and a request for a damage report should be made. These instructions
must be followed fully for us to guarantee our full support of your claim for protecting
against loss from concealed damage. The form required for filing such a claim will
be provided by the carrier.
ÅLifting device for transportation by crane see page 18
Printed in Germany Changes without prior notification reserved
Important: keep original operating manual for future use
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TABLE OF CONTENTS
1. Intended use...............................................................................................................................4
1.1. Description......................................................................................................................4
2. Operator responsibility – Safety instructions...............................................................................4
2.1. Disposal..........................................................................................................................6
2.2. EC Conformity.................................................................................................................7
3. Technical specifications..............................................................................................................9
3.1. Cooling water connection..............................................................................................13
4. Safety notes for the user...........................................................................................................14
4.1. Explanation of safety notes...........................................................................................14
4.2. Explanation of other notes.............................................................................................14
4.3. Safety instructions.........................................................................................................14
5. Installation................................................................................................................................16
5.1. Tubing...........................................................................................................................17
6. Operating controls and functional elements..............................................................................18
7. Operating procedures...............................................................................................................21
7.1. Bath fluids.....................................................................................................................21
7.2. Power connection..........................................................................................................21
7.3. Filling ............................................................................................................................22
7.4. Switching on / Start - Stop.............................................................................................22
7.5. Setting the feed pressure..............................................................................................23
7.6. Setting the temperatures...............................................................................................23
7.7. AUTOSTART ON / OFF................................................................................................24
7.8. Remote control: activate – deactivate............................................................................24
8. Safety installations....................................................................................................................25
8.1. Excess temperature protection......................................................................................25
8.2. Low level protection ......................................................................................................25
9. Troubleshooting guide / Error messages..................................................................................26
10. Electrical connections......................................................................................................28
11. Remote control................................................................................................................28
11.1. Setup for remote control................................................................................................28
11.2. Communication with a PC or a superordinated data system..........................................29
11.3. List of commands..........................................................................................................30
11.4. Status messages...........................................................................................................30
11.5. Error messages.............................................................................................................30
12. Cleaning / repairing the unit.............................................................................................31
12.1. Draining ........................................................................................................................33
13. Adequate storing of operating manual.............................................................................33
14. Warranty conditions.........................................................................................................34
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1. Intended use
JULABO recirculating coolers have been designed for temperature application to specific fluids. The
pump connections can be used for cooling applications in an external circuit at a constant temperature.
JULABO water baths are not suitable for direct temperature control of foods, semi-
luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature
control means unprotected contact of the object with the bath medium (bath fluid).
1.1. Description
PID1
RS232
;The recirculating coolers are operated via the splash-proof keypad. The
implemented microprocessor technology allows to set and to store the setpoint that
can be indicated on the LED temperature display.
;The PID temperature regulation is used to withdraw heat from the bath fluid by
means of the cooling machine and to automatically regulate the required need.
;Electrical connections:
1. The serial interface RS232 allows modern process technology without
additional interface.
2. Alarm output for external alarm message.
;Manually adjustable by-pass (handwheel) to reduce the pump capacity
(e. g. for glass equipment).
2. Operator responsibility – Safety instructions
The products of JULABO ensure safe operation when installed, operated, and maintained according to
common safety regulations. This section explains the potential dangers that may arise when operating
the circulator and also specifies the most important safety precautions to preclude these dangers as
far as possible.
The operator is responsible for the qualification of the personnel operating the units.
¾The personnel operating the units should be regularly instructed about the dangers involved with
their job activities as well as measures to avert these dangers.
¾Make sure all persons tasked with operating, installing, and maintaining the unit have read and
understand the safety information and operating instructions.
¾When using hazardous materials or materials that could become hazardous, the unit may be
operated only by persons who are absolutely familiar with these materials and the unit. These
persons must be fully aware of possible risks.
If you have any questions concerning the operation of your unit or the information in this manual,
please contact us!
Contact
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Safety recommendations for the operator
¾You received a product conceived for industrial use. Nevertheless, avoid strikes to the housing,
vibrations, damages to the keypad foil (keys, display) or contamination.
¾Make sure the product is regularly checked for proper condition. Regularly check (at least every
2 years) the proper condition of the mandatory, warning, prohibition and safety labels.
¾Take care that the mains supply features a low impedance to avoid any negative affects on the
instrument being operated in the same mains.
¾This unit is designed for operation in a controlled electromagnetic environment. This means that
transmitting devices (e.g. cellular phones) should not be used in the immediate vicinity. Magnetic
radiation may influence other units with components susceptible to magnetic fields (e.g. a
monitor). We recommend to keep a minimum distance of 1 m.
¾Permissible ambient temperature: max. 40 °C, min. 5 °C.
¾Permissible relative air humidity: 50 % (40 °C).
¾Do not store in an aggressive atmosphere. Protect from contaminations.
¾Do not expose to sunlight.
Appropriate Operation
Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs
of the water bath. Routine operation can also be carried out by untrained personnel who should
however be instructed by trained personnel.
Use
For the use according to the intended purpose, special material requirements have to be respected
(bath fluids). Only use non-acid and non corroding materials.
Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data
sheets).
Only use the unit in well ventilated areas. (see page 16).
The recirculating coolers are not for use in explosive atmosphere
When using hazardous materials or materials that could become hazardous, the operator must affix
the enclosed safety labels to the front of the unit so they are highly visible:
1 Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)
2
or
Carefully read the user information prior to beginning operation.
Scope: EU
2 Carefully read the user information prior to beginning operation.
Scope: USA, NAFTA
Observe the instructions in the manuals for instruments of a different make that you connect to the
circulator, particularly the corresponding safety instructions. Also observe the pin assignment of plugs
and technical specifications of the products.
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2.1. Disposal
This unit contains the refrigerant R404A or R452A– at this time considered not to have any negative
effects on the ozone layer. However, during the long operating period of the unit, disposal prescriptions
may change. So only qualified personnel should take care of disposal.
Valid in EU countries
See the current official journal of the European Union – WEEE directive.
Directive of the European Parliament and of the Council on waste electrical and
electronic equipment (WEEE).
This directive requires electrical and electronic equipment marked with a crossed-
out trash can to be disposed of separately in an environmentally friendly manner.
Contact an authorized waste management company in your country.
Disposal with household waste (unsorted waste) or similar collections of municipal
waste is not permitted!
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2.2. EC Conformity
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3. Technical specifications
Recirculating Cooler
Cooling FL1201 FL1203 air cooled air cooled
Working temperature range °C -20 ... +40 -20 ... +40
Temperature stability °C ±0.5
Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor
Temperature indication: LED-DISPLAY
Resolution °C 0.1
Temperature control PID 1
Temperature sensor Pt 100
Excess temperature protection 85 °C - fixed value
Low liquid level protection float switch
Cooling capacity
Medium: Mixture water-glycol °C kW +20 0 -10 +20 0 -10 1.2 0.9 0.6 1.2 0.8 0.5
Cooling compressor 1-stage
Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
Circulating pump:
discharge, max. at 0 bar l/min 23 40
pressure, max. at 0 liter bar 1.0
pressure, adjustable at 0 Liter bar ---- 0.5 ... 3.0
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 12 ... 17
Dimensions (WxLxH) cm 50x76x64
Weight kg 791
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
IP class according to IEC 60 529 IP 21
Mains power connection V/ Hz 230 / 50 230 / 50
Current input at 230 V A 7 12
Mains power connection V/ Hz 208 - 230 / 60 230 / 60
Current input at 208V / 230 V A 6 ----
at 230 V A 11
Mains power connection V/ Hz 115 / 60 ----
Current input at 115 V A 14 ----
*At FL1201 230 V / 50 Hz; 230 V / 60 Hz and FL1203 230 V / 50 Hz
All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C
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Recirculating Cooler
Cooling FL1701 FLW1701 air cooled water cooled
Working temperature range °C -20 ... +40 -20 ... +40
Temperature stability °C ±0.5
Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor
Temperature indication: LED-DISPLAY
Resolution °C 0.1
Temperature control PID 1
Temperature sensor Pt 100
Excess temperature protection 85 °C - fixed value
Low liquid level protection float switch
Cooling capacity
Medium: Mixture water-glycol °C kW +20 0 -10 +20 0 -10 1.7 1.1 0.85 1.7 1.1 0.85
Cooling compressor 1- stage
Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
Circulating pump:
discharge, max. at 0 bar l/min 23 23
pressure, max. at 0 liter bar 1.0 1.0
pressure, adjustable at 0 Liter
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 12 ... 17
Dimensions (WxLxH) cm 50x76x64
Weight kg  82
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature l/min ----- 2.8
Mains power connection V/ Hz 230 / 50 230 / 50
Current input at 230 V A 10 10
Mains power connection V/ Hz 208 - 230 / 60 208 - 230 / 60
Current input at 208V / 230 V A 8 8
Mains power connection V/ Hz 115 / 60 115 / 60
Current input at 115 V A 15 13
* At FL1701 230 V / 50 Hz
All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C
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Recirculating Cooler
Cooling FL1703 FLW1703 air cooled water cooled
Working temperature range °C -20 ... +40 -20 ... +40
Temperature stability °C ±0.5
Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor
Temperature indication: LED-DISPLAY
Resolution °C 0.1
Temperature control PID 1
Temperature sensor Pt 100
Excess temperature protection 85 °C - fixed value
Low liquid level protection float switch
Cooling capacity
Medium: Mixture water-glycol °C kW +20 0 -10 +20 0 -10 1.7 1.0 0.75 1.7 1.0 0.75
Cooling compressor 1- stage
Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
Circulating pump:
discharge, max. at 0 bar l/min 40 40
pressure, max. at 0 liter bar 0.5 ... 3.0 0.5 ... 3.0
pressure, adjustable at 0 Liter
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 12 ... 17
Dimensions (WxLxH) cm 50x76x64
Weight kg 91 88
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature l/min ----- 2.8
Mains power connection V/ Hz 230 / 50 230 / 50
Current draw at 230 V A 12 11
Mains power connection V/ Hz 208 - 230 / 60 208 - 230 / 60
Current draw at 208V / 23 0 V A 11 11
* At FL1703 230 V / 50 Hz and FLW1703 230 V / 50 Hz
All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C
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Warning functions and safety installations
Excess temperature protection 85 °C - fixed value
Low liquid level protection float switch
Alarm message optical + audible (permanent)
Excess temperature - Warning function 82 °C
Overload protection for compressor and pump motor
Classification according to DIN 12876-1 class I
Environmental conditions according to IEC 61 010-1:
Use only indoor.
Altitude up to 2000 m - normal zero.
Ambient temperature: +5 ... +40 °C
Air humidity:
Max. rel. humidity 80 % for temperatures up to +31 °C,
linear decrease down to 50 % relative humidity at a temperature of +40 °C
Max. mains fluctuations of ±10 % are permissible.
The unit corresponds to Class I
Overvoltage category II
Pollution degree 2
Caution:
The unit is not for use in explosive environment.
EMC requirements
The device is an ISM device of group 1 per CISPR 11 (uses HF for internal purposes) and is
classified in class A (industrial and commercial sector).
Notice:
Devices of class A are intended for the use in an industrial electromagnetic
environment.
When operating in other electromagnetic environments, their electromagnetic
compatibility may be impacted.
Information about the used refrigerants
The Regulation (EU) No. 517/2014 on fluorinated greenhouse gases applies to all systems which
contain fluorinated refrigerants and replaces (EC) 842/2006.
The aim of the Regulation is to protect the environment by reducing emissions of fluorinated
greenhouse gases.
Among other things it regulates the emission limits, use and recovery of these substances. It also
contains requirements for operators of systems which require / contain these substances to function.
Under Regulation 517/2014, the operator of a system of this nature has the following duties:
xThe operator must ensure that the equipment is checked at regular intervals for leaks.
xThese intervals depend on the CO2equivalent of the system. This is calculated from the
refrigerant fill volume and type of refrigerant. The CO2equivalent of your system is shown on
the model plate.
xThe operator undertakes to have maintenance, repair, service, recovery and recycling work
carried out by certified personnel who have been authorized by JULABO.
xAll such work must be documented. The operator must keep records and archive them for at
least five years. The records must be submitted to the relevant authority on request.
Refer to the text of the Regulation for further information.
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3.1. Cooling water connection
Only for water cooled models - FLW:
Cooling water pressure (IN / OUT) max. 6 bar
Difference pressure (IN - OUT) 2 bar up to 6 bar
Flow rate typical 2.8 l/min
Cooling water temperature <20 °C
Recommended quality of cooling water:
pH – value 7,5 to 9,0
Sulfate [SO4 2- ] < 100 ppm
Hydrocarbonate [HCO3- ] / Sulphate [SO4 2-] > 1 ppm
Hardness [Ca2+, Mg2+] / [HCO3-] >0,5dH
Alkalinity 60 ppm < [HCO3-] < 300 ppm
Conductivity ȝVFP
Chloride (CL-) < 50 ppm
Phosphate (PO43-) < 2 ppm
Ammonia (NH3) < 0,5 ppm
Free Chlorine < 0,5 ppm
Ferri Ions (Fe3+ ) < 0,5 ppm
Mangano Ions (Mn2+) < 0,05 ppm
Carbon dioxide (CO2) < 10 ppm
Hydrosulfide (H2S) < 50 ppm
Content of oxygen < 0,1 ppm
Algae growth LPSHUPLVVLEOH
6XVSHQGHGVROLGV LPSHUPLVVLEOH
Notice:
Danger of corrosion of heat exchanger due to unsuitable quality of cooling
water.
xDue to its high content of lime hart water is not suitable for cooling and causes
calcination of the heat exchanger.
xFerrous water or water containing ferrous particles will cause formation of rust
even in heat exchangers made of stainless steel.
xChlorous water will cause pitting corrosion in heat exchangers made of stainless
steel.
xDue to its corrosive characteristics distilled and deionized water is unsuitable and
will cause corrosion of the bath. .
xDue to its corrosive characteristics sea water is not suitable.
xDue to its microbiological (bacteria) components which settle in the heat
exchanger untreated and unpurified river water and water from cooling towers is
unsuitable.
xAvoid particulate matter in cooling water.
xAvoid putrid water.
Notice: Cooling water circuit
Risk of oil leaking from the cooling circuit (compressor) of the recirculating cooler into
the cooling water in case of a fault in the circuit!
Observe the laws and regulations of the water distribution company valid in the location
where the unit is operated.
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4. Safety notes for the user
4.1. Explanation of safety notes
In addition to the safety warnings listed above, warnings are posted throughout the
manual. These warnings are designated by an exclamation mark inside an equilateral
triangle. “Warning of a dangerous situation (Attention! Please follow the
documentation).”
The danger is classified using a signal word.
Read and follow these important instructions.
Warning:
Describes a possibly highly dangerous situation. If these instructions are not followed,
serious injury and danger to life could result.
Caution:
Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries
could result. A warning of possible property damage may also be contained in the text.
Notice:
Describes a possibly harmful situation. If this is not avoided, the product or anything in
its surroundings can be damaged.
4.2. Explanation of other notes
Note!
Draws attention to something special.
Important!
Indicates usage tips and other useful information.
4.3. Safety instructions
Follow the safety recommendations to prevent damage to persons or property.
Further, the valid safety instructions for working places must be followed.
xOnly connect the unit to a power socket with earthing contact (PE – protective
earth)!
xThe power supply plug serves as a safe disconnecting device from the line and
must always be easily accessible.
xPlace the instrument on an even surface on a pad made of non-inflammable
material.
xDo not stay in the area below the unit.
xMake sure you read and understand all instructions and safety precautions listed
in this manual before installing or operating your unit.
xNever operate the unit without bath fluid in the bath.
xDo not drain the bath fluid while it is hot or cold!
Check the temperature of the bath fluid prior to draining (by switching the unit on
for a short moment for example).
xUse suitable connecting tubing.
xMake sure that the tubing is securely attached.
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xAvoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
xRegularly check the tubing for material defects (e.g., for cracks).
xNever operate damaged or leaking equipment.
xAlways turn off the unit and disconnect the mains cable from the power source
before performing any service or maintenance procedures, or before moving the
unit.
xAlways turn off the unit and disconnect the mains cable from the power source
before cleaning the unit.
xAlways empty the bath before moving the unit.
xTransport the unit with care.
xSudden jolts or drops may cause damage in the interior of the unit.
xObserve all warning labels.
xNever remove warning labels.
xNever operate equipment with damaged mains power cables.
xRepairs are to be carried out only by qualified service personnel.
xRisk of injury for hands. Close cover carefully.
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5. Installation
Rear view:
xPlace the unit on an even surface on a base made of nonflammable
material.
xCooling machine, pump motor and electronics produce intrinsic heat
that is dissipated via the venting openings.! Never cover these
openings!
xKeep at least 20 cm of open space on the front and rear venting grids.
xDo not set up the unit in the immediate vicinity of heat sources and do
not expose to sun light.
16
A
M
P
16
A
M
P
IN
OU
T
Example: FL1201 (air cooled)
IN
OUT
1
6
A
M
P
1
6
A
M
P
I
N
OU
T
min
Example: FL1703 (water cooled,
pressure, adjustable 0,5 ... 3, 0 bar)
IN
OUT
12 mm inner dia.
Example:
PVC-tubing
xThe place of installation should be large enough and
provide sufficient air ventilation to ensure the room
does not warm up excessively because of the heat the
instrument rejects to the environment.
For a fault (leakage) in the refrigeration system, the
standard EN 378 prescribes a certain room space to be
available for each kg of refrigerant.
> For 0.52 kg of refrigerant R-404A, 1 m3 of space is
required.
> For 0.423 kg of refrigerant R-452A, 1 m3 of space is
required.
xConnect the tubings for cooling the external system to
the pump connectors M16x1 for feed and return (14)
on the rear of the recirculating cooler.
- Feed – Return
xConnect a piece of tubing to the overflow connector
(15) and drain into a suitable vessel, which always has
to be placed lower thant the exit „Overflow“.
xTurn the adjusting valve (14) counter-clockwise to set
the lowest manometric pressure.
xBefore operating the unit after transport, wait about
one hour after setting it up. This will allow any oil that
has accumulated laterally during transport to flow back
down thus ensuring maximum cooling performance of
the compressor.
xOnly water cooled models - FLW:
Ensure circulation of cooling water by connecting the
tubing to cooling water inlet (IN) and outlet (OUT) on
the rear (16) of the recirculating cooler.
Cooling water see page 13.
Cooling water connectors G3/4" external thread
Tubing 12 mm inner dia. tubing
IN Cooling water inlet
OUT Cooling water outlet
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Caution: Pump pressure
xDetermine and check the max. admissible pressure for the external circuit before
putting the unit into operation. The max. pressure is determined by the weakest
element in the circuit (e. g. glass equipment).
xSecurely attach all tubing to prevent slipping.
Notice: Flood hazard!.
In case the system to be cooled is located at a higher level than the recirculating
cooler, take note of bath liquid flowing back when the unit is switched off.
Return flow safety device
Should the filling volume of the bath tank not be sufficient, prevent the liquid from
flowing back by using shut-off valves..
Order No. Description Suitable for
8 970 456 Shut-off valve for loop circuit, M16x1 FL1201 / FL(W)1701
8 970 454 Shut-off valve G ¾“ FL1203 / FL(W)1703
The following questions shall help to recognize possible dangers and to reduce
the risks to a minimum.
xAre all tubes and electrical cables connected and installed?
Note:
sharp edges, hot surfaces in operation, moving machine parts, etc.
xWhat to do when a dangerous substance was spilled on or in the unit?
Before starting to work, obtain information concerning the substance and determine
the method of decontamination.
5.1. Tubing
Caution:
xEmploy suitable connecting tubing.
xMake sure that the tubing is securely attached.
xAvoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
xRegularly check the tubing for material defects (e.g. for cracks).
xPreventive maintenance: Replace the tubing from time to time.
Recommended tubing:
Order No. Description Suitable for
8930308 1 m CR®-tubing 8 mm inner dia. (-20 ... +120 °C) FL1201
8930312 1 m Reinforced tubing 8 mm inner dia. (-40 ... +120 °C) FL1201
8930319 1 m Reinforced tubing ¾“ inner dia. (-40 ... +120 °C) FL(W)1203/1703
Tubing insulation
8930412 1 m Insulation, 18 mm inner dia. Reinforced tubing 8 mm inner dia.
8930413 1 m Insulation, 23 mm inner dia. Reinforced tubing 12 mm inner dia.
8930419 1 m Insulation, 29 mm inner dia. Reinforced tubing ¾“ inner dia.
Tube clamps
8970481 2 Tube clamps, size 2 Reinforced tubing 8 mm inner dia.
8970482 2 Tube clamps, size 3 Reinforced tubing 12 mm inner dia.
8970483 2 Tube clamps, size 4 Reinforced tubing ¾“ inner dia.
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6. Operating controls and functional elements
Front view Rear view
RS232 ALARM
1234
5
6
7
8
9
1
0
IN
OUT
11
12
13
1
5
17
Air cooled model
feed pressure not adjustable
RS232 ALARM
1234
5
6
7
8
9
1
0
IN
OUT
IN
OUT
11
12
13
13
14
15
16
17
Water cooled model (16)
with feed pressure adjusting valve (14)
or
Lifting device for transportation by crane
and handle at the front
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1 Mains power switch, spash-water protected
on
off
2.0 Keypad, spash-water protected
2.1 Edit keys (set point increase or decrease)
2.2 Enter key Store set point value / parameter
3.0 Indication
3.1
°C
LED temperature display
3.2 Control indicator – Cooling
3.3 Control indicator – Alarm
4 Protection lid for fill in opening
5 RS232 Interface RS232: remote control via personal computer
6 Alarm output (for external alarm signal)
7 Feed pressure indication: Manometer
8 Filling level indication
9 Drain tap with drain port
10 Venting grid, removable
11 Mains fuses: 16 A (230 V unit)
20 A (115 V unit)
12 Mains power cable with plug
13 Pump connector OUT – pressure pump
Pump connector IN– Return
FL/FLW1201 M16x1
FL/FLW1203 G ¾“ external thread
FL/FLW1703 G ¾“ external thread
14 Feed pressure adjusting valve
15 Overflow connector
16
IN
OUT
Only water cooled models
IN Cooling water inlet
OUT Cooling water outlet
G3/4" external thread
12 mm inner dia. tubing
17 Castor (at the back)
18 Protection lid for storing place of operating manual
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Top view
Push
Push
4
18
4Protection lid for fill in opening
18 Protection lid for storing place of
operating manual
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