LabTech H50/H150 Smart Series Water Chiller User Manual

H50/H150 Smart Series Water Chiller
User Manual

H50/H150 Smart Series Water Chiller

H50/H150 SMART SERIES
WATER CHILLERS

DISCLAIMER

Thank you for selecting our products.
We are sure that you will be completely satisfied with the performance of this new unit entering your laboratory. We invite you to carefully read this user manual and to keep it close to the instrument for convenient  and fast consulting. For any clarification or any request for assistance please contact either your local Representative or LabTech at the following address:
LabTech SRL
Via Fatebenefratelli, 1/5
24010 Sorisole (BG) Italy
Tel +39 035 576614
Website: www.labtechsrl.com
E-mail: marketing@labtechsrl.com
LabTech SRL provides this document to its customers at the time of purchasing to be used during the product operation. This document is copyright protected and any reproduction of the whole or any part of it is prohibited, except with the written authorization of LabTech SRL.
The contents of this document are subjected to change without notice. All technical information in this document is for reference purposes only.

INTRODUCTION

About your system
LabTech develops and produces innovative cooling systems used whenever high precise temperature control and rapid temperature changes are required.
LabTech follows the “Green Lab Conditions” regulations by using eco-friendly materials.
By adapting new technologies and innovations to maintain top reliability level worldwide, all production. steps are focused to offer high quality and customized solutions to meet any requirement.
The LabTech water chiller line is specially designed for analytical, medical, and industrial use providing an accurate temperature control.
Compliance
Products tested and found compliant with the requirements defined in the EC Council Directive for Electromagnetic Compatibility established by 2014/30/EU as well as Low Voltage Directive (LVD) 2014/35/EU can  be identified by the CE mark on the rear of the unit. The testing has demonstrated compliance with the following directives:

• EN 61010-1:2010
• EN 61326-1:2013
• 2014/35/EC
• 2014/30/EC
• 2011/65/EC
• 015/863/EC

WEEE/RoHS
This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2011/65/EC. It is marked with the following symbol:

Warranties and Liabilities
Seller warrants the products manufactured and sold by it, to be, for the period of warranty coverage, free from defects of materials or workmanship under normal prior use and service. The period of warranty coverage is specified for the respective products in the respective Seller instruction manuals for those products but shall in no event exceed 1 year from the date of shipment thereof by Seller. Seller’s liability under this warranty is limited to such of the above products or parts thereof as are returned, prepaid transportation to Seller’s plant, not later than 10 days after the expiration of the period of warranty coverage in respect thereof and are found by Seller’s examination to have failed to function properly because of detective workmanship or materials and not because of improper installation or misuse and is limited to, at Sellers election, either (a) repairing and returning the product or part thereof, or (b) improper installation or misuse and is limited to, at Seller’s election, either (a) repairing and returning the product or part thereof, or (b) furnishing a replacement product or part thereof, prepaid transportation by Seller in either case. In an event Buyer discovers or learns that a product does not conform to warranty, Buyer shall immediately notify Seller in writing of such non-conformity, specifying in reasonable detail the nature of such non-conformity. If Seller is not provided with such written notification, Seller shall not be liable for any further damages which could have been avoided if Seller had been provided with immediate written notification, this warranty is made and accepted in lieu of all other warranties, express or implied. All other obligations and liabilities of Seller, whether in contrast or tort (including negligence) or otherwise, are expressly excluded. In no event shall Seller be liable for any costs, expenses, or damages, whether direct or indirect, special, incidental, consequential, or other, on any claim of any defective product, more than the price paid by Buyer for the product including prepaid return transportation charges.
No warranty is made by Seller of any Seller product which has been installed, used or operated contrary to Seller’s written instruction manual or which has been subjected to misuse, negligence or accident or has been repaired or altered by anyone other than Seller or which has been used in a manner or for a purpose for which the Seller product was not designed nor against any defects due to plans or instructions supplied to Seller by or for Buyer.
Conventions
All safety symbols are followed by WARNING or CAUTION, which indicates the degree of risk for personal injury and/or instrument damage. Cautions and warnings are followed by a description. A WARNING is intended to prevent improper actions that could cause personal injury. A CAUTION is intended to prevent improper actions that may cause personal injury and/or instrument damage. The following safety symbols  may be found on your instrument and/or in this guide.

| Burn Hazard: This symbol alerts you to the presence of a hot surface that could or may cause burn injuries.
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| Electrical Shock Hazard: This symbol indicates that an electrical shock. could or may occur.

| Fire Hazard: This symbol indicates a risk of fire or flammability could or may occur.

| Chemical safety: This symbol indicates a risk of contact with chemical substances could or may occur.

Contact us.
There are several ways to contact LabTech SRL.
To contact Technical Support:
Phone +39 035 576614
E-mail customer.care@labtechsrl.com
To contact Application Department:
Phone +39 035 576614
E-mail customer.care@labtechsrl.com
To contact Sales Department:
Phone +39 035 576614
E-mail marketing@labtechsrl.com
To suggest changes to documentation:
Send an e-mail with subject: Technical Publications Editor at customer.care@labtechsrl.com

Safety Rules

General Information
Please carefully read this user manual before starting to use the instrument and follow its prescriptions with the utmost care. This user manual is part of the delivery, hence must be always kept together with the  instrument on its working place.
It is imperative that every person operating with this system has read and fully understood this manual. The nonobservance of the instructions contained herein, or improper use may involve damages/injuries that  are not covered by product liability.
Electrical safety
The instrument must be used within the rated voltage. Prior to use, please check if the wire is aged. In case of aged wires, please contact the after- sales service for inspection. It is forbidden to disassemble the  instrument and to connect internal circuit parts, to avoid a short circuit or open circuit.
Fire safety
Numerous reagents are flammable and explosive. When the solvent vapor concentration reaches a certain level, it becomes flammable and could cause fire. The instrument should be kept away from the sources of  ignition and high temperature places. If there is solvent pungent smell, carefully check whether there is gas or liquid leakage, and turn off the power.
Chemical safety
The unit is an instrument for organic chemical sample pre-treatment. The involved chemical solvents have harmful effects on the human health. Despite the instrument is fully closed and features full vent design, it  is recommended to pay attention to the personal safety during the use. Regular check of liquid waste barrels as well as working conditions of the vent fan are required to avoid the risk of leakage caused by corrosion  and to avoid the formation of organic solvent vapours affecting operator’s health. If there is a fault, please contact the after-sales service.
Recommendation
Never place the unit in a location where excessive heat, moisture, or corrosive materials are present.
The unit construction provides extra protection against the risk of electrical shock by grounding appropriate metal parts. The extra protection may not function unless the power cord is connected to a properly  grounded socket. It is the user’s responsibility to assure that a proper ground connection is provided.
Never connect the inlet or outlet fitting to your building water supply or any water pressure source.
Never use flammable or corrosive fluids with this unit.
Do not use automotive antifreeze. Commercial antifreeze contains silicates that can damage the pump seals. Use of automotive antifreeze will void the manufacturer’s warranty.
Transport the unit with care. Inclination angle must be less than 60 degrees otherwise the refrigeration system could be damaged. Sudden jolts or drops can damage the refrigeration system.
Pay attention to all warning labels and never remove them.
Never operate a damaged or leaking equipment.
Never operate the unit without the cooling fluid in the reservoir.
Always turn off the unit and disconnect the power cord from the power source before performing any service or maintenance procedure or before moving the unit.
Never operate the equipment with a damaged power cord.
Performance of installation, operation, or maintenance procedure other than those described in this manual may result in a hazardous situation and may void the warranty.
Never use water (including distilled and deionized) in units installed in environments where temperatures go down below 5°C. We recommend 1:1 mixture of water and glycol to avoid liquid freezing.
Never remove warning labels.
Never operate damaged or leaking equipment.
Never operate the unit without process fluid in the reservoir.
Observe all warning labels.
Other Information
Make sure you read and understand all instructions and safety precautions listed in this manual before installing or operating your unit. If you have any questions concerning the operation of your unit or the  information in this manual, please contact us.
Transport the unit with care. Sudden jolts or drops can damage the unit components.

General Information

SERIES: H50
CONTROL PANEL
The control panel consists of the following keys:

FRONT VIEW
The front panel consists of the following parts:

REAR VIEW

SPECIFICATION
The H50 series recirculating water chiller is designed to provide continuous supply of cooling fluid at a constant temperature and flow rate. The unit consists of an air-cooled refrigeration system, a plate heat  exchanger, a recirculating pump, a reservoir, and a microprocessor temperature controller. Technical specification:

NOTE: the value of temperature stability is tested in standard operating mode.
SERIES: H150 CONTROL PANEL
Touch controller H150 Series:

FRONT VIEW

REAR VIEW

SPECIFICATION

Model| Smart
H150-1000N| Smart
H150-1000NLT| Smart
H150-1500NS| Smart
H150-2100NS| Smart
H150-100NSLT| Smart
H150-3000NS| Smart
H150-5000N| Smart
H150-7000N| Smart
H150-9000N
---|---|---|---|---|---|---|---|---|---
Temp. control range| 8 ～35 ℃| -20~35℃| 8 ～35 ℃| -20~35℃| 8 ～35 ℃
Temp. control mode| PID
Cooling mode| Compressor cooling
Refrigerant| R134A/R513A(from 2022)| R404A
Temp. stability| ±0.1 ℃| ±0.2 ℃
Cooling capacity| 1000W@25℃| 1000W@25℃
100W @-15℃| 1500W@25℃| 2100W@25℃| 2100W@25℃
200W @-15℃| 3000W@25℃| 5000W@25℃| 7000W@25℃| 9000W@25℃
Pump capacity| 5L /min| 5L /min| 5L /min| 13L /min| 13L /min| 13L /min| 13L /min| 13L /min| 13L /min
Reservoir volume| 2.2L| 2.2L| 3.5L| 3.5L| 3.5L| 3.5L| 22L| 22L| 22L
Recirculating pump| MAG-PR3| MAG-PR3| MAG-PR3| MAG-PRG8| MAG-PRG8| MAG-PRG8| MAG-PRG8| MAG-PRG8| MAG-PRG8
Weight| 56Kg| 56Kg| 72Kg| 80Kg| 80Kg| 85Kg| 162Kg| 164Kg| 164Kg
Dimension (LxWxHmm)| 560x360x590| 650x385x625| 740x460x700| 690x640x1100| 690x640x1100| 690x640x1100

NOTE: the value of temperature stability is tested in standard operating mode.
MAGNETIC PRG & PR SERIES PUMP CAPACITY

Installation

Site Requirements
Ambient Temperature Range: 10°C to 40°C (50°F to 104°F)
Relative Humidity Range : 10% to 80% (non-condensing)
Operating Altitude: Sea Level to 8000 feet (2438 meters)
Never place the unit in a location where excessive heat, moisture, or corrosive materials are present.
The unit will retain its full rated capacity in ambient temperatures up to approximately 25℃ (77℉). Reduce the cooling capacity 1% for every 0.5℃ (1℉) above 25℃ (77℉), up to a maximum ambient temperature of  35℃ (94℉).
Positioning the instrument
The unit has an air-cooled refrigeration system. The air is drawn through the front of the unit and discharged through the rear and side panels. The unit must be properly positioned so that the intake and discharge  are not impeded. A minimum clearance of 1 meter (nearly 3 feet) on all vented sides is necessary for adequate ventilation. Inadequate ventilation will cause a reduction in cooling capacity and, in extreme cases,  compressor failure.
Excessively dusty areas should be avoided, and a periodic cleaning schedule should be done (see Chapter Maintenance).

Electrical Requirements
The unit provides extra protection against the risk of electrical shock by grounding appropriate metal parts. The extra protection may not function unless the power cord is connected to a properly grounded socket. It  is the user’s responsibility to assure a proper ground connection is provided.
The following power options are available:

Unit| Voltage/V| Frequency /Hz| Phases| Circuit Capacity/ A| Fuse| IP Degree| Power consumption/W| Dissipated heat load BTU/h
---|---|---|---|---|---|---|---|---
Smart H50-500/DF| 230| 50/60| 1| 2| 4| 20| 460| 1800
Smart H50-500/115| 115| 60| 1| 4| 10| 20| 460| 1800
Smart H150-1000N| 230| 50/60| 1| 6| 8| 20| 1300| 3500
115| 60| 1| 10| 10| 20| 1300| 3500
Smart H150-1500NS| 230| 50/60| 1| 10| 16| 20| 1700| 5200
Smart H150-2100NS| 230| 50/60| 1| 10| 16| 20| 2300| 7200
Smart H150-3000NS| 230| 50/60| 1| 13| 16| 20| 2900| 10300
Smart H150-5000N| 230| 50| 1| 15| 16| 20| 3450| 17000
Smart H150-7000N| 400/440| 50/60| 3| 9A/P| 10| 20| 4100| 23900
Smart H150-9000N| 400/440| 50/60| 3| 10A/P| 10| 20| 5900| 30800

The unit is supplied with a European power cable. It is used to relate to power supply. Plug the cord into socket and plug in rear into electric socket of the unit. Then the unit is ready to be used.
Plumbing Requirements
Series: H50
The plumbing connections are located on the rear of the unit and labelled “SUPPLY” and “RETURN”.
Remove the plastic protective caps from both plumbing connections.
Install the barbed adapters to these connections.
Connect the fitting “SUPPLY” to the hose feeding the inlet of your application.
Connect the fitting “RETURN” to the hose from the outlet of your application. Clamp all connections.
Connect the ball valve to “DRAIN’’ position of the chiller and turn ball valve off.
Never connect the fitting to the tap water supply or any water pressure source.
It is important to keep the distance between the unit and the instrument to be cooled as short as possible.
Tubing should be straight and without bends.
If diameter reductions must be done, they should be made on the inlet and outlet of the instrument to be cooled, not on the chiller.
Series: H150
The liquid plumbing connections are located on the rear of the unit and labelled “SUPPLY” and “RETURN”.
The connections are 1/2-inch Female Pipe Thread. Units with 1/2-inch fittings are supplied with 1/2-inch barbed adapters.
Remove the plastic protective caps from both plumbing connections.
Install the barbed adapters to these connections.
Connect the fitting “SUPPLY” to the hose feeding the inlet of the instrument to be cooled.
Connect the fitting “RETURN” to the hose from the outlet of the instrument to be cooled.
Clamp all connections. Connect the ball valve to “DRAIN’’ position of the chiller and turn ball valve off.
Never connect the fitting to the tap water supply or any water pressure source.
It is important to keep the distance between the unit and the instrument to be cooled as short as possible. Tubing should be straight and without bends. If diameter reductions must be done, they should be made on  the inlet and outlet of the instrument to be cooled, not on the chiller.
When fittings must be changed or the chiller is not used for a long period, be sure to drain all liquid out of the unit.
Shut down the unit at first, then put a cup on the ground and disconnect the fitting from the instrument cooled then let the fluid in the tank flow out into the cup and disconnect the fitting on the chiller. Before  positioning the unit in the storage be sure the drain tap is closed.
Fluid Requirements
Never use flammable or corrosive fluids with this unit.
Do not use automotive antifreeze.
Commercial antifreeze contains silicates that can damage the pump seals.
The use of automotive antifreeze will void the warranty.
Fluids should be pure and contain no impurities such as grains.
Otherwise, the impurities may damage the pump.
The use of unpurged fluids will void the warranty.
Fluids should be replaced every 6 months.
Whenever fluid is replaced, please kindly add water cleanser into fluid to keep cleaning.
For H50-500/Smart H150-1000N/Smart H150-1000NLT/Smart H150-2100NS/Smart H150-2100NSLT/Smart H1503000NS, the volume is 2~3 drops.
For H150-5000/H150-7000, the volume is 5~6 drops.
Note: please use liquid mixture of water 50% and glycol 50% when the setpoint the is lower than 5℃. Malfunctions caused by using incorrect cooling fluids will void the warranty.

Water Quality

0.020 ppm if fluid in contact with aluminum
Iron| <0.3| <0.1
Lead| <0.015| 0
Magnesium| <12| <0.1
Manganese| <0.05| <0.03
Nitrates\Nitrites| <10 as N| 0
Potassium| <20| <0.3
Silicate| <25| <1.0
Sodium| <20| <0.3
Sulfate| <250| <50
Hardness| <17| <0.05
Total Dissolved Solids| <50| <10

Operation

LCD CONTROLLER

CHANGE SETPOINT
Press SET to enter the temperature set interface, use buttons to decrease or increase the setpoint temperature is a transposition key. Press SET again to save and quit the temperature set interface.
Touch Controller
Main Interface

a) Heating output indicator: the icon is switched ON when the unit is heating.
b) Cooling output indicator: the icon is switched ON when the unit is cooling.
c) Real time measurements: process parameters are shown on real time. Liquid Inlet and Flowrate parameters are
options and can be removed from the display from FACTORY SETTING
d) Date and time: date and local time. Enter the SYSTEM SETTING window menu to modify them.
e) Running/Alarm status: shows the unit status between Running and Alarm. Available alarms: Temperature Overage > Liquid Level > Gas Pressure > Liquid Pressure > Flow Rate >Self Testing > High Temperature > Low Temperature. Running mode indicates the unit is working properly.
f) Running time: partial running time from the unit switch ON. When the unit is switched OFF the timer is reset. Maximum time: 10.000  hours.
g) Menu: enter the main MENU h) Set temperature shows the temperature setpoint value. Touch it to show the TEMPERATURE SETTING window.

MAIN MENU

HOME: touch HOME button to return to the MAIN INTERFACE WINDOW.
HELP: touch HELP button to show the USER MANUAL.
PARAMETER SETTING

a) Page Switching: touch the area to change page under PARAMSET.
b) Parameter Setpoint: touch the value to activate the area (numbers will become yellow). Use the numeric keypad to modify it. To confirm the new value touch OK button.
c) Parameter Range: parameter setting range.
d) Numeric Keypad: keypad can only be used when the value area is activated (yellow). For negative values touch the -/+ button in advance. Once the new value is displayed press OK to confirm (numbers will become white).
Touch ESC button to cancel modifications and display the default value. Touch DEL button to delete the last digit selected.
e) HOME: touch HOME button to return to the MAIN INTERFACE WINDOW.
f) Parameters Setting Table

SYSTEM SETTING

a) Date/Time Setting: touch SETTING to modify date and time.
b) Functions: touch desired values to change in the MAIN INTERFACE WINDOW.
c) Communication COM: touch 1 to 8 COM to set the proper communication port with a target instrument.
FACTORY RESET
Touch YES button to restore default parameters. Note: always contact the LabTech Service Team for assistance before modifying or changing the factory setting. Any malfunction due to improper setting is not covered by the warranty.
ALARMS
A. High/low temperature alarm
Alarm code L-A will be displayed and the buzzer alarm ring when the temperature is overshoot and 5℃, or more, lower than the setpoint temperature. The refrigeration system will stop automatically.
Alarm code H-A will be displayed and the buzzer alarm ring when the temperature is overshoot and 5℃, or more, higher than the setpoint temperature. The refrigeration system will stop automatically.  Switch off the chiller and restart it.
B. Water level alarm
When the water level is lower than the limit, the water level indicator “WL” will be displayed and the buzzer alarm sounds. The refrigeration system will stop automatically.
Fill the water tank and the compressor will restart automatically after 1 minute.
Note: the buzzer can be stopped by pressing any key.
TEMPERATURE ALARM
Temperature Over-range Alarm: alarm code “—-” is shown and the buzzer alarm sounds when the temperature measured in the liquid tank is lower than the low temperature limit or higher than the high  temperature limit, or the PT100 temperature sensor is open circuit / short circuit. The controller automatically shuts down the solenoid valve to stop liquid cooling.
Temperature Absolute Value Alarm: when the temperature measured in the liquid tank is higher than High Limit
Value Temperature (HTL) or lower than Low Limit Value Temperature (LTL), the buzzer alarm sounds and a warning alarm is shown to indicate overcooling or overheating. HTL and LTL can be set in the PARAMSET – TAlarm window. The controller automatically shuts down the solenoid valve to stop liquid cooling.
Temperature Deviation Value Alarm: when the temperature measured in the liquid tank is higher than “Set value of temperature + High deviation value (HDev)”, a warning alarm displays to indicate overheat. When  the temperature measured in the liquid tank is lower than “Set value of temperature – Low deviation value (LDev)”, the buzzer alarm sounds, and a warning alarm is shown to indicate overcooling. HDev and LDev  can be set in the PARAMSET – TAlarm window. The controller automatically shuts down the solenoid valve to stop liquid cooling.

Notes:

1. Switch OFF and ON the chiller to restart the normal unit working state after an alarm was activated.
2. The Temperature Deviation Value Alarm is not working while self-testing process is performed.
3. The Temperature Deviation Value Alarm is not working after re-switch ON the unit, or the temperature set value changes.
4. Before the compressor starts running, the Temperature Deviation Value Alarm is active, whereas the
   Temperature Absolute Value Alarm is valid.

LIQUID LEVEL ALARM (Optional)
When the low liquid level sensor is activated for more than 10 seconds, the touch controller displays liquid level alarm and the buzzer sounds. The controller automatically shuts down the solenoid valve to stop liquid cooling. The unit turns back to normal state once the proper liquid level in the tank is reached.
LIQUID PRESSURE ALARM
When the pressure sensor detects that the liquid circuit pressure is higher than the set value + high pressure limit or is lower than set value – low pressure limit for more than 5 seconds, the touch controller shows liquid pressure alarm and the buzzer ring. The unit turns back to normal state once the proper liquid level in the tank is reached.

LIQUID FLOW RATE ALARM (Optional)
When the Switch Times alarm is activated, the touch controller abnormal flow rate alarm and the buzzer sounds if the flow switch has been off for more than 5 seconds.
When the Water Flow Rate Analogy Amount alarm is activated, the touch controller abnormal flow rate alarm and the buzzer sounds if the flow sensor detects a flow rate higher than set value + high limit value or  lower than set value – low limit value. The unit turns back to normal state once the proper liquid level in the tank is reached.
Note: the buzzer can be stopped by pressing any key.
START UP/SHUT DOWN PROCEDURES
Before starting the unit, double-check all electrical and plumbing connections.
Open the top panel of the water tank, remove its cap, and fill it with water by using a funnel.
For H50 series, it is better to exhaust the air in the pump before the first use, just put the supply tube in a container, switch on the unit for few seconds and leave air and water flowing out.
By placing up the switch of the unit, the controller will flash, and the unit will start.
By placing down the switch of the unit, the unit will shut down.
NOTE: To turn on the unit at once after the shut-down, wait for 10 seconds before proceeding.
PRESSURE REGULATION VALVE OF SMART H150
The Pressure Relief Valve is used to adjust the unit’s fluid flow/pressure.
NOTE: The valve is factory pre-set for the most common applications and normally requires no further adjustment. It is factory pre-set in order not to exceed 60 Psi (4.0Bar).
Before adjusting the valve, turn the unit off. Locate the circular regulation valve opening on the rear of the unit.
Turn the threaded stem fully counterclockwise.
If the unit is not connected to the instrument to be cooled, install a loop of hose equipped with a shut-off valve between the supply and return fittings.
Turn the unit on.
Use the pressure gauge to see the regulation valve setting.
Turn the threaded stem valve clockwise. Continue until the gauge indicates 60 psi (4Bar) or the desired setting.
NOTE: the regulation valve may drip if the threaded stem is backed out too much.

Preventive Maintenance

RESERVOIR CLEANING
Periodically inspect the fluid inside the reservoir. If cleaning is necessary, flush the reservoir with a cleaning fluid compatible with the circulating system and the cooling fluid.
The cooling fluid should be replaced periodically. Replacement frequency depends on the operating environment and running time.
Before changing the cooling fluid ensure that it is at a safe handling temperature.
When fittings must be changed or the chiller is not used for a long period, be sure to drain all liquid out of the unit.
Shut down the unit at first, then put a cup on the ground and disconnect the fitting from the instrument cooled.
Then let the fluid in the tank flow out into the cup and disconnect the fitting on the chiller. Before positioning the unit in the storage be sure the drain tap is closed.
CONDENSER CLEANING
For proper operation, the unit needs to pull a substantial amount of air through a condenser. A build-up of dust or debris on the fins of the condenser will lead to a loss of cooling capacity.
The lower front of the unit has a one-piece grid assembly. Gently remove it using hands. Use care not to scratch the paint.
Periodic vacuuming of the condenser fins is necessary. The cleaning frequency depends on the operating environment. After the initial installation we recommend a monthly visual inspection of the condenser. After  several months the cleaning frequency will be established.
Use care when cleaning the condenser fins as they can easily bend.
FILTER REPLACEMENT
If the water circuit of the unit is equipped with a filter system, please change the filter cartridge periodically.

Troubleshooting

FLOWCHART

UNIT DOES NOT START
Check the cord; ensure it is plugged in.
Check the position of the circuit breaker on the front of the unit. It must be in the upper position.
Check the voltage of power supply.
NOTE: several starting attempts may be necessary on units with a Low Flow Switch and configured to shut down with a low flow fault.
UNIT DOES NOT CIRCULATE FLUID
Check the water level in the reservoir. Fill, if necessary.
Check the instrument being cooled for restrictions in the cooling line.
Check the pump strainer.
Check the pressure gauge, adjust the relief valve as necessary.
INADEQUATE TEMPERATURE CONTROL
Verify the setpoint.
If the temperature continues to rise, make sure the heat load of the instrument to be cooled does not exceed the rated specification.
Make sure the air intake and discharge are not impeded and the ambient temperature does not exceed +35℃.
Make sure the condenser is free of dust and debris.
LEAKAGE
Due to vapor contained in the atmosphere, condensation may occur outside the tubes when the temperature of the refrigeration system is lower than the ambient: specially when the humidity of the atmosphere is  high, while the set point is lower, the condensation will be more evident. To avoid such results, a dehumidifier should be used, or the temperature set higher.

Declaration of Conformity

LabTech Sri
Via Fatebenefratelli 1/5
24010 Sorisole (BG) Italy
Tel. +39 035 576614
Fax +39 035 4729414| E-mail: info@labtechsrl.com
www.labtechsrl.com
C.F. – P.IVA- Reg. Imp. 03242600165
R.E.A. Bergamo 361520
Cap. Soc. 100.000,00 int. veers.
---|---

EU/UE

DECLARATION OF CONFORMITY

Noni
LabTech s.r.l.
We
Nous
Wire
Nostos
Via Fatebenefratelli, 1 /5 24010 SORISOLE (BG) — ITALY
declare under our sole responsibility that the product/system
WATER CHILLER
to which this declaration relates is in conformity with the following standards
IEC 62321 :2008
Following the provisions of Directive(s):
2011/65/EC

Spare Parts List

Chiller models
MAGPR8-910| Magnetically driven liquid pump + motor pump for LW2100/3000
MAG-PR8SX| Magnetically driven Liquid Pump for LW2100 and LW3000 LabTech Water Chiller models
SBC-DYX001| Power cable for LW1000/1500
SBC-DYX005| Power cable for LW1500/2100/3000
SDL-DYB018CB| Main electric board for H150 Water Chiller model N Model
SDL-DYB018TBS| Touch screen for H150 Water Chiller N model
SSL-CGQ014| Pressure Sensor for H150-3000 LabTech Water Chiller
SSL-SJFE006| Tee valve (liquid circuit pressure regulation) for LW1000/1500
SSL-SJFE007| Tee valve (liquid circuit pressure regulation) for LW2100/3000
SZL-PTF018/145| Solenoid coil 230V
WCCF/AC| Water Chiller Circulation Fluid (5L. VOLUME) with corrosion inhibitor
WL100| Wheel for LW1000/1500/2100/3000
Y004300| Start capacitor of 120W motor 6.3UF (LW1000/1500)
Y001500| Start capacitor of 250W motor 8uF (LW2100/3000)
SDL-DR002| Capacitor of LW500 6.5UF

www.labtechsrl.com

References

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