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WATER DISTILLER

LISTON A 1104 | LISTON A 1110 | LISTON A 1125 | LISTON A 1204 | LISTON A 1210

OPERATING MANUAL

Copyright Liston, LLC 2015

1. SafetyThe following symbol mean:

CAUTION: Read these operating instructions fully before use and follow them unconditionally! Instructions are relevant to safety precautions.

General safety:

Use only as specified in the operating instructions provided The water distiller should not be used if it has encountered a physical shock

or has been dropped The water distiller should not be moved or knocked while in operation The water distiller must be stored and transported according to the

package labels After transport or storage allow the water distiller to warm up and dry out

(2 hrs.) before connecting to the power source The water distiller is designed for indoor use only Do not operate the water distiller in environments with aggressive or

explosive chemical mixtures Do not make modifications to the design of the water distiller Be careful, water distiller surfaces and distillate can be extremely hot while

operating Use only original accessories and parts (heaters, valves, control unit etc.),

provided by Liston, LLC or its representatives

Electrical safety:

Connect only to the power source with a voltage and power frequency corresponding to that one on the serial number label (ID-plate)

Ensure that the switch and/or plug are easily accessible during use Do not plug the water distiller into the power source without grounding

Before moving / cleaning the water distiller turn it off and disconnect from the power source

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Operation safety:

Water distiller is based on water evaporation method. Due to that fact, it heats water up to boiling temperature. Be careful with water distiller surfaces and distillated water – they can be extremely hot.Never open working distiller. Before any maintenance make sure that water distiller has cooled down.

Water distillers with built in tank (models Liston A 1104, Liston A 1110, Liston A 1125) are equipped with automatic control system and will automatically switch off if tank is full. Nevertheless, water distiller is a powerful electric equipment that works with liquids and it has to be periodically observed by personnel while operating.

Water distillers without built in tank (models Liston A 1204, Liston A 1210) are not equipped with automatic control system and must be controlled by personnel all the time while operating. Make sure that distillate receptacle is big enough and not full, before starting operation

2. General information2.1. Water distillers

Liston A 1104Liston A 1110Liston A 1125Liston A 1204Liston A 1210 (hereinafter referred to as water distillers)are electric single(mono)-distillation water distillers designed for producing distilled water for laboratory and other use. Water distillers differ in capacity and features, depending on model.

2.2. Water distillers are designed to work with 220-240 VAC 50-60 Hz single phase electric network for models Liston A 1104 and Liston A 1204. Models with capacity over 4 liters per hour (Liston A 1110, Liston A 1125, Liston A 1210) are designed to work with industrial three phase 380-400 VAC 50-60 Hz electrical connection.

2.3. Water distillers power consumption, not more than:3 kW – Liston A 1104, Liston A 1204

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7.5 kW – Liston A 1110, Liston A 121018 kW – Liston A 1125

2.4. Water distillers capacity at rated mains voltage, not less than4 liters of distillate per hour – Liston A 1104, Liston A 120410 liters of distillate per hour – Liston A 1110, Liston A 121025 liters of distillate per hour – Liston A 1125

2.5. Raw water consumption of water distillers per hour, not more than70 liters – Liston A 1104, Liston A 1204150 liters – Liston A 1110, Liston A 1210220 liters – Liston A 1125

2.6. Water distillers weight and dimensions620х320х490 mm, 25 kg – Liston A 1104870х440х550 mm, 45 kg – Liston A 1110830х650х720 mm, 62 kg – Liston A 1125280х265х500 mm, 9 kg – Liston A 1204410х370х550 mm, 18 kg – Liston A 1210

3. Getting started3.1. Unpacking: Carefully remove the water distiller out of the box (for Liston

A 1104, Liston A 1204, Liston A 1210) or carefully pull up the cardboard cover and remove the pallet (Liston A 1110 and Liston A 1125). Remove the protective plastic film (bag) and take all the spare parts and accessories from the inside of the distillers. NOTE – some amount of water and scale formations can be inside of the water distiller. It is normal and occurs because every water distiller is tested by quality control department for 2 hours prior to shipment.

3.2. Delivery set:Liston A 1104

Description QuantityWater distiller 1Water connection hose (inlet hose), length 2 meters 1Water connection hose (drain hose), length 1.5 meters, 12x20 mm 2Fitting with male thread 12 mm 2Silicone tube for constant distillate withdrawal 10x2 mm length 1 meter 1Screw clamp 12-20 mm 2Plastic tie for securing silicone tube 1Rubber gasket for inlet hose ¾” 2

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Sealing tape 1 Liston A 1110

Description QuantityWater distiller 1Water connection hose (inlet hose), length 2 meters 1Water connection hose (drain hose), length 1.5 meters, 16x25 mm 2Fitting with male thread 12 mm 2Silicone tube for constant distillate withdrawal 15x3 mm length 1 meter 1Screw clamp 16-25 mm 2Plastic tie for securing silicone tube 1Rubber gasket for inlet hose ¾” 2Adjustable foot 4Sealing tape 1

Liston A 1125

Description QuantityWater distiller 1Water connection hose (inlet hose), length 2 meters 1Water connection hose (drain hose), length 1.5 meters, 16x25 mm 2Fitting with male thread 12 mm 2Silicone tube for constant distillate withdrawal 15x3 mm length 1 meter 1Screw clamp 16-25 mm 2Plastic tie for securing silicone tube 1Rubber gasket for inlet hose ¾” 2Adjustable foot 4Sealing tape 1

Liston A 1204

Description QuantityWater distiller 1Brass filter (rough) ½ “ 1Ball valve ½ “ 1Metal water connection hose (inlet hose), length 1.5 meters. ½ “ 1Water connection hose (drain hose), length 1.5 meters, ½ “ 1Silicone tube for constant distillate withdrawal 15x3 mm length 1 meter 1Screw clamp 12-20 mm 1Plastic tie for securing silicone tube 1Sealing tape 1

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Liston A 1210

Description QuantityWater distiller 1Brass filter (rough) ½ “ 1Ball valve ½ “ 1Fitting with male thread 12 mm 1Metal water connection hose (inlet hose), length 1.5 meters. ½ “ 1Water connection hose (drain hose), length 1.5 meters, ½ “ 1Silicone tube for constant distillate withdrawal 16x25 mm length 1 meter 2Screw clamp 20-25 mm 2Plastic tie for securing silicone tube 1Sealing tape 1

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4. Water distiller with built in tank design and principle of operation

Figure 1 shows the water distiller design (the structure component view is schematic not taking into consideration features of the water stills), Figure 2 shows the fitting / grounding terminal connection diagram.

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Figure 1. The design of the Liston A 1104, Liston A 1110, Liston A 1125 electric water distillers, where:

1 – Housing 2 – Evaporator 3 – Steam flow splitter4 – Nozzle5 – Steam movement channel 6 – Condenser 7 – Equalizer 8 – Evaporator drain pipe

13 – Electric circuit components 14 – Flow rate limitation nozzle 15 – Condenser inlet16 – Evaporator inlet 17 – Heater 18 – Equalizer drain pipe 19 – Heat exchanger 20 – Condenser drain pipe

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9 – Evaporator bottom level sensor 10 – Low-water thermostat sensor11 – Distillate level sensor12 – Water treatment device (option)

21 – Raw water supply valve 22 – Collector distillate level pipe23 – Evaporator top level sensor 24 – Equalizer level sensor

Figure 2. Fitting / grounding terminal connection diagram for the Liston A 1104, Liston A 1110, Liston A 1125 electric water distillers, where:

25 – Raw water supply valve fitting26 – Cooling water drain fitting 27 – Evaporator water drain tap fitting28 – Distillate drain tap29 – Grounding terminal

The water still electric circuit components 13 are located in the base bottom part. The MODE green warning LED, ALARM red warning LED and water still POWER ON / OFF switch fitted with backlight are located on the water still base front panel.

4.1. When the water distiller is switched ON using the POWER switch (this switch is lit in the ON position), the raw water supply valve 21 is activated (Figure 1). As soon as the evaporator water level reaches the bottom sensor 9, the automatic device switches the heaters 17 ON.

4.2. The operation mode is achieved maximum in 15 min in the case of the Liston A 1104 water still and maximum in 30 min in the case of the Liston A 1110 and Liston A 1125 water stills.

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4.3. When water boils in the evaporator 2, steam forms, than separated and enters in the condenser 6 via the channel 5. The separator consists of the steam floe splitter 3 and the nozzle 4 located inside the channel 5.

4.4. Steam condenses in the condenser walls and heat exchanger 19 with the formation of distilled water. The evaporator water level is maintained automatically by means of the equalizer 7 due to the water overflow in the drain pipe of the equalizer 18.

4.5.The condenser 6 housing is simultaneously a distilled water collector. 4.6.Distilled water can be produced in the continuous mode, with the collector

6 unused by flowing distillate in other containers via the drain tap 28 (Figure 2) located on the front panel.

5. Water distiller with built in tank electric circuit diagram

5.1. The water distiller is connected to the mains using an input circuit breaker BA (Figure 3, Figure 4) to be installed by the Customer and intended for the overload / short circuit protection of electric circuits having a voltage of up to 500 VAC, operative switching ON / OFF of these circuits; it is selected by the 10·In overcurrent tripping setting (where In is a rated current).

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Figure 3. Electric circuit diagram of the Liston A 1104 electric water distiller

Figure 4. Electric circuit diagram of the Liston A 1110, Liston A 1125 water distillers (ЕК2, ЕК4 and ЕК6 heaters are intended for the Liston A 1125 only).

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5.2. The water distiller is started by setting the S1 toggle switch to ON, at the same time the switch LED (POWER) is lit and supply voltage is applied to the A1 automatic device PCB that activates the Y1 inlet valve (Pos. 21 in Figure 1), at the same time the MODE red LED is lit (HL1 LED).

5.3. When the water level in the evaporator 2 (Figure 1) reaches the bottom sensor 9 (the LOW contact in Figures 3 and 4), the KM1.1 starter is activated and voltage is applied to the EK heaters.

5.4. When the evaporator water level lowers below the admissible level (below the sensor 9 level) the automatic device switches the heater OFF.

5.5. The KK1 thermal switch contact ensures an additional emergency shutdown of the water still in the case of water level lowering and the heater temperature rise over 150˚С.

5.6. When the distillate collector is filled up to the level sensor 11 (Figure 1) (the HIGH contact in Figures 3 and 4), the automatic device stops heating water and shuts the Y1 water supply inlet valve off. The MODE green LED (HL1) goes out. When distillate is drained from the collector, the automatic device opens the Y1 inlet valve and activates water heating, at the same time the MODE LED is lit (HL1 LED).

5.7. When water overflows in the evaporator 2 (Figure 1) or equalizer 7, the water level reaches the top level control sensor in the evaporator 7 or level sensor in the equalizer 24 (ALARM contact in Figures 3 and 4), the automatic device switches the heater and inlet valve OFF and the FAILURE led (HL2) is lit. To continue the operation you should switch the S1 power switch OFF (POWER), eliminate the cause of overflow and switch the S1 switch (POWER) ON.

5.8. Upon completion of operation you should cut the water distiller of the mains. Switch the S1 toggle switch (POWER) off and BA input circuit breaker.

6. Water distiller without built in tank design and principle of operation

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Figure 5 shows the design of the Liston A 1204 and Liston A 1210 (the structure component view is schematic not taking into consideration features of the water stills):

Figure 5. The design of the Liston A 1204, Liston A 1210 electric water distillers, where:

1 – Housing 7 –Water inlet pipe2 – POWER switch 8 – Fitting 3 – Electric heater 9 – Nozzle 4 – Protective thermostat sensor 10 – Evaporator 5 – Distillate drain pipe 11 – Rubber gasket 6 – Condenser 12 – Cooling water drain pipe 13 – Thermostat

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14 – Evaporator draining pipe (for cleaning)

6.1. Prior to the start of the water still, it should be connected to the water supply system through the pipe 7 (Figure 5) and you should wait until water runs from the cooling water drain pipe 12, to which the cooling water removal hose is connected. The nozzle 9 automatically controls the water flow rate.

6.2. When the power switch 2 is switched ON (the switch is lit when in ON position), the automatic device switched the electric heater 3 and raw water is fed to the evaporator via the pipe 7.

6.3. Raw water boils in the evaporator 10, steam forms and is separated and fed into the condenser 6. Steam condenses on the condenser walls and in the heat exchanger with formation of distilled water. The equalizer maintains the water level in the evaporator due to water overflow in the drain pipe

6.4. Distillate flows out through the distillate drain pipe 5. Additional containers should be used to collect distillate.

7. Before installationInstallation of the equipment must be done only by qualified personnel and only after reading operating manual

7.1.The water distillers are designed for table mounting and should be placed on a solid and flat surface. Use level and adjustable foots (for Liston A 1110 and Liston A 1125) to place water distiller.

7.2.Water distillers should be installed in rooms with water supply system, water supply control valve, sewage system, electric network (single-phase alternate current network with a rated voltage of 220-240 VAC for the Liston A 1104, Liston A 1204 and three-phase alternate current network with a rated voltage of 380-400 VAC for the Liston A 1110, Liston A 1125 and Liston A 1210 and grounding. Do not use the water distillers without connecting its grounding terminal to the protective grounding bus

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7.3.During the operation, the water distiller produces gases, as well as steam and heat from raw water, because of this it is reasonable to have sufficient natural ventilation or exhaust ventilation in the premises.

7.4. Raw water incoming pressure should be 0.15-0.5 MPa. Otherwise, the stable water distiller operation is not guaranteed.

7.5. Prior to the connection of the water distiller to mains, check visually the cord, plug and socket for failures.

8. Water distiller with built in tank installation

8.1. Attach the fitting with 1/2'' male thread through the sealing tape to the tap 28 (Figure 2). Connect the silicone tube to the fitting and attach a plastic tie

8.2. Attach the fitting with 1/2'' male thread through the sealing tape to the tap 27 (Figure 2).

8.3. Connect the drain hoses, one to the fitting 26 for the cooling water drain (Figure 2) and another to the tap fitting 27 for the wastewater drain from the evaporator. Tighten the connections of hoses and fittings with the clamps supplied.

8.4. IMPORTANT! The hose for the cooling water drain from the fitting 26 (Figure 2) should be located at a slant and it must not have any twists and kinks. If necessary, shorten the hose. The level difference between the fitting 26 and the location of the hose connection to the sewage system should be at least 0.3 m. The hose should not abut against the internal sewage pipe wall.

8.5. Otherwise, the water level in the evaporator 2 (Figure 1) and equalizer 7 begins to rise and reaches the top level sensor 23 or level sensor 24 and the automatic device will stop the water still and the ALARM red LED will be lit).

8.6. Install gaskets in the filling hose nuts.8.7. Connect the filling hose to the fitting 25 (Figure 2). 8.8. Connect the filling hose to the water supply system through a valve or a

ball valve.

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8.9. Check, that the bottom level sensor 9 (Figure 1) does not contact the walls of the evaporator 2 and steam flow dissector 3. Otherwise, the heaters start to operate in the absence of a sufficient water level. This will cause an emergency shutdown of the water still due to the electric heater temperature rise above 150 °C.

8.10. Check, that the distillate level sensor 11 (Figure 1) does not contact the walls of the condenser 6 and exchanger 19. Otherwise, the automatic device will assume that the collector is filled with distillate, turn off water heating, and shut the inlet water supply valve off.

8.11. Check that the sensors 23 (Figure 1) and 24 do not contact the walls of the evaporator 2 and equalizer 7. Otherwise, the automatic device would assume that there was an overflow of water and turn off the water distiller, and the ALARM red LED will be lit.

8.12. Before connecting to the mains, make sure that the voltage and power correspond with the information on the water distillers. The mains should be equipped with a circuit breaker in accordance with the water still power for a rated current of 20 A (Liston A 1104), 40 A (for Liston A 1110), and 100 A (Liston A 1125). The water still are connected to the mains using the mains input circuit breaker (Figure 6, Figure 7) to be installed by the consumer and intended for protection against overloads and short-circuits of electrical circuits having a voltage of 380-400 VAC, operative ON and OFF of these circuits.

8.13. The BA circuit breaker is not supplied, should be purchased by the consumer and selected based on the calculation of the 10•In overcurrent tripping setting (where In is a rated current).

8.14. Connect the water still grounding terminal to the PE bus with flexible copper wire at least 6 mm2 in cross section. Connect the external circuits to the power supply network in accordance with Figure 6 or Figure 7.

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Figure 6. Wiring diagram for the connection of external circuits of the Liston A 1104 water distiller to the 220 VAC mains

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Figure 7. Wiring diagram for the connection of external circuits of the Liston A 1110 and Liston A 1125 water stills to the 380 VAC mains

9. Water distiller without built in tank installation

9.1. IMPORTANT: In order to avoid manual adjustment of the water flow through the tap, the orifice 9, which throttles the flow of water in the range of 0.2-0.5 MPa (the optimum pressure is 0.15 MPa) is installed in this water distiller. This provides the minimum flow and maximum performance of the water distiller.

9.2. The throttle orifice in the nozzle has a small cross-section and can be clogged with particles of sand or salt-containing sediments. Therefore, to avoid clogging of the nozzle, as well as for monitoring pressure in system of water supply, it is recommended to install in the water supply system a pressure regulator with a pressure gauge and a self-cleaning filter (with 100 micron filtration fineness).

9.3. In case of clogging the nozzle, the water distiller begins to emit steam, the productivity decreases. In the absence of flow of water through the nozzle, the water level in the evaporator becomes insufficient, overheating of the heater will occur leading to triggering of the thermostat 13 and the full disabling of the water distiller.

9.4. In the case of frequent nozzle clogging, if the filter is not installed, the nozzle may be removed from the water distiller. The consumption of water should be controlled with a valve supplied. The flow rate is considered optimal, when the temperature at the outlet of the heat exchanger (water temperature Equalizer) is about 70-80 degrees Celsius.

9.5. Install water distiller on the table, using the level gauge and avoiding slants.

9.6. Attach the silicone tube (L = 0.5 m) to the distillate drain pipe 5.9.7. Connect the drain hose to the cooling water drain pipe 12.9.8. Tighten the connection of the hose and the cooling water drain pipe 12

with the screw clamp supplied.9.9. IMPORTANT: The drain from the drain hole should be free: the cooling

water drain hose should be at a slant, and it should not have any twists

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and kinks (if necessary, reduce the length of the hose). The height difference between the drain hole and location of connection of the hose to the sewage system should be at least 0.3 m. Otherwise, an air lock may appear, the water level in the evaporator will begin to rise and overflow of water from the equalizer will start.

9.10. Connect the 1/2” ball valve (supplied) through the sealing strip to the pipe 7 (Figure 5).

9.11. Connect one end of the 1/2” flexible water piping to the ball valve and the other end to the water supply system through the ½ “ brass filter (supplied).

9.12. Attach the fitting with 1/2'' male thread through the sealing tape to the valve for waste water drain from the evaporator (for Liston A 1210).

9.13. Connect the hose for waste water drain from the evaporator to the fitting of the water still.

9.14. Tighten the connections of hoses and fittings with the clamps supplied.

9.15. Connection to mains:9.16. The BA circuit breaker is not supplied, is purchased by the consumer

and selected based on the calculation of the 10•In overcurrent tripping setting (where In is a rated current)

9.17. Connect the water still grounding terminal to the PE bus with flexible copper wire at least 6 mm2 in cross section.

9.18. Connect the Liston A 1204 water distiller according to Figure 69.19. Connect the Liston A 1210 water distiller according to Figure 7

10. First use of the water distiller with built in tank

10.1. Disinfect the internal surfaces of water distiller with 3 % solution of hydrogen peroxide with addition of detergent or similar ready-to-use products for disinfection.

10.2. Close the tap for water drain from the evaporator Pos. 27 (Figure 2).10.3. Open the valve for the raw water supply to the water distiller.

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10.4. Check that the bottom level sensor 9 (Figure 1) does not contact the walls of the evaporator 2 and steam flow dissector 3. Otherwise, the heaters start to operate in the absence of a sufficient water level. This will cause an emergency shutdown of the water still due to the electric heater temperature rise above 150 °C.

10.5. Check that the distillate level sensor 11 (Figure 1) does not contact the walls of the condenser 6 and exchanger 19. Otherwise, the automatic device will assume that the collector is filled with distillate, turn off water heating, and shut the inlet water supply valve off.

10.6. Check that the sensors 23 (Figure 1) and 24 do not contact the walls of the evaporator 2 and equalizer 7. Otherwise, the automatic device would assume that there was an overflow of water and turn off the water still, and the ALARM red LED will be lit.

10.7. To start the water still push the POWER button located on the front panel and this button should be lit. The raw water supply valve will be activated.

10.8. When the evaporator water level reaches a value determined by the bottom sensor, the heaters are activated and the MODE LED should be lit. In 15 min for the Liston A 1104 or in 30 min for the Liston A 1110 and Liston A 1125, the water still should achieve the operating mode.

10.9. At initial start of the water stills after a long break in the work, and after maintenance work, it is necessary to perform an hour cycle followed by draining water from the evaporator and collector.

10.10. Distilled water can be discharged continuously into the prepared containers, or use the built-in storage tank. When filling the built-in storage tank, the distillate level sensor 11 is activated (Figure 1), the heating elements are switched off, and the MODE LED goes out.

10.11. Upon completion of work, disconnect the water still from the mains, to do this, press the POWER button to 0 position. Then the POWER and MODE LEDs will go out.

10.12. Close the valve for the raw water supply in the water distiller.10.13. In 30 minutes after switching OFF, drain water from the evaporation

chamber by opening the drain valve 27 (Figure 2).

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11. First use of the water distiller without built in tank

11.1. Disinfect the internal surfaces of water distiller with 3 % solution of hydrogen peroxide with addition of detergent or similar ready-to-use products for disinfection.

11.2. When you first turn on the water still, fill the evaporator pos. 10 with water. To do this, remove the silicone tube from the equalizer and remove the condenser pos.6 by pulling it up. Next, fill up the evaporator with water until the heating elements do not disappear completely under water. For the Liston A1210 and water distiller, before filling the evaporator, you must ensure that tap for water draining from the evaporator is CLOSED.

11.3. Fully open the ½" ball valve for supplying raw water to the water distiller, wait until water is flowing out of the cooling water drain pipe pos. 12, to which the cooling water removal hose is connected.

11.4. WARNING! Before each use, make sure that the heating elements are completely covered with raw water, otherwise the electric heaters will work in the absence of sufficient water. This will cause an emergency

shutdown of the water still due to the electric heater temperature above 130-150 ˚C.

11.5. For recovery of the distiller after heater overheating, wait until the heaters are cooled down, and then push the lock button located on the thermal switch housing. (Pos. 13, Figure 5)

11.6. To start the water still push the POWER button located on the front panel and this button should be lit.

11.7. In 15 for the Liston A 1204 or in 30 min for the Liston A 1210 the water distiller should achieve the operating mode.

11.8. At initial start of the water distillers after a long break in the work, and after maintenance work, it is necessary to perform an hour cycle followed by draining water from the evaporator and collector.

11.9. Distilled water can be discharged continuously into the prepared containers.

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11.10. Be careful! Distilled water temperature is 80-90 °C. Make sure that the containers for the collection of distillate withstand the temperature. If distilled water cooling is required, then you must purchase cooler to be built in the water distiller and that is an option for delivery.

11.11. Upon completion of work, disconnect the water distiller from the mains, to do this, press the POWER button to 0 position. Then the POWER LED should go out.

11.12. Close the valve for the raw water supply in the water distiller

12. Maintenance of the water distiller with built in tank

12.1. The routine maintenance during the operation period and periodical maintenance should be provided for the water distiller.

12.2. When performing the maintenance, the personnel should follow the required safety precautions of this Operating Manual.

12.3. When performing the maintenance, the water distiller should be disconnected from the mains.

12.4. The routine maintenance during the operation period shall be carried out by staff that uses the distiller, the periodical maintenance shall be performed by qualified personnel (electrician and mechanic). Routine maintenance is an external visual inspection of the unit and removal of dust, dirt, corrosion with a dry clean cloth and inspecting visually the filter located in the valve 25 (Figure 2) for clogging. In case of clogging, rinse it with water.

12.5. After 160 hours of operation (depending on raw water quality) or decreased water distiller performance, the evaporation chamber and electric heaters should be cleaned of scale using a non-destructive method when checking the housing and heating elements.

12.6. Recommendations for cleaning up:12.6.1. Close the valve for the raw water supply to the water still from

the water supply system. 12.6.2. Drain water from the evaporator using the tap 27 (Figure 2) (do

not close the tap after the drain).12.6.3. Remove the upper cover of the water still housing.

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12.6.4. Remove the evaporator 2 cover (Figure 1).12.6.5. Unscrew 4 attachment nuts of the steam flow splitter 3 (Figure

1).12.6.6. Remove the steam flow splitter 3.12.6.7. Flush with water the walls and bottom of the evaporator to

remove salt-containing sediments. You can use the filling hose for supplying raw water from the water supply system: for this, undo the nut of the filling hose from the connection of the solenoid valve 25 (Figure 2), remove the gasket from the nut, turn the tap for supplying raw water.

12.6.8. Close the tap 27 for the drain of waste water from the evaporator (Figure 2).

12.6.9. Fill the evaporator with pure water up to the level of the steam flow splitter fixation.

12.6.10. Add citric acid into the evaporator, at a rate of 50 g per liter. The volume of water in the evaporator is 8 l for the Liston A 1104, 20 l for the Liston A 1110, 50 l for the Liston A 1125. Instead of citric acid solution, you can use other household means intended for descaling. In the application of other means, follow the instructions for the use of these means.

12.6.11. Ensure that the sensors 9 , 23, 24 (Figure 1) are fixed firmly and do not contact the walls.

12.6.12. Ensure that the valve for the raw water supply from the water supply system is CLOSED.

12.6.13. Place the evaporator cover back.12.6.14. Switch the water still when pushing the POWER button.12.6.15. Bring to a boil and boil for 10 minutes.12.6.16. Switch the water still OFF.12.6.17. In 60 min open the valve 27 (Figure 2) and drain the solution. 12.6.18. Flush with fresh water the evaporator walls and bottom,

evaporator inlet 16 and equalizer 7 (Figure 1)12.6.19. Close the valve 27 (Figure 2).12.6.20. Fill the evaporator with pure water up to the steam flow

splitter attachment.

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12.6.21. Add baking soda (10 g per liter). 12.6.22. In 5 min open the valve 27 (Figure 2) and drain the solution.12.6.23. Finally, rinse with plenty of water . 12.6.24. Close the drain valve 27 (Figure 2) for draining waste water

from the evaporator.12.6.25. Install the gasket in the filling hose nut. 12.6.26. Reconnect the filling hose to the fitting 25 (Figure 2), then open

the valve for supplying raw water. 12.6.27. Replace the steam splitter 3 (Figure 1), fulfilling steps 6, 5 in

reverse order.12.6.28. Make sure that the sensors 9, 23 (Figure 1) is rigidly fixed and

do not contact the walls. 12.6.29. Assembly the water still performing steps 4, 3 in reverse order.12.6.30. The water still can be used.

12.7. In case of poor quality of raw and, consequently, produced water, water must be completely drained from the water still and the inner surfaces of condensation and evaporation chambers should be thoroughly cleaned by flushing with solution of baking soda (10 g per liter) followed by wiping (especially along the contour of bottoms of the evaporator and collector) with a lint-free cloth. It is important to ensure that there are no any foreign objects inside the water still.

12.8. After assembling the water still, perform an hour cycle of normal operation followed by draining water from the evaporator and collector.

12.9. The periodic maintenance shall be performed quarterly (once in 3 months) and includes the works specified in Sections 12.5., 12.6.

13. Common problems and solutions for the water distillers with built in tank

PROBLEM POSSIBLE CAUSE SOLUTIONWhen switching the POWER button ON,

No power supply Connect the mains cordSwitch the input circuit breaker ON

Fuses blown Replace the fusesNo contact in the mains Check the cord

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PROBLEM POSSIBLE CAUSE SOLUTIONthe POWER LED is not lit

cordThe LED is failed Replace the button

During the water still operation, the MODE LED is not lit

The thermal switch 10 contact (Figure 1) is triggered due to:

Heating the electric heaters 17 above 150 °C due to large amount of scale on the electric heaters 17The lower level

sensor 9 contacts the evaporator 2 walls or steam flow splitter 3 walls, and the electric heaters 17 are switched ON in the absence of sufficient amount of water

Remove scale – perform the maintenance completely (Section 9.1).

Install the sensor such as it does not contact the walls of the evaporator 2 or steam flow splitter 3 (Figure 1) and fix it

After cooling the electric heaters 17, reset the function of the thermal switch when pushing the interlock button located on its casing. The interlock button 2.5 mm in diameter is located on the side panel of the water still in a hole close to the earthing bolt.

The storage tank 6 (Figure 1) is filled with distillate

Drain distillate from the storage tank 6 (Figure 1)

The level sensor 11 contacts the walls of the condenser 6 or heat exchanger 19 (Figure 1): this fault imitates filling the storage tank with distillate

Install the sensor in such way that it does not contact the walls of the condenser 6 or heat exchanger 19 (Figure 1) and fix it

Water is not heated

The fuse located on the A1 automatic device PCB is blown

Check the fuse located on the A1 automatic device PCB

The KM starter is not activated, since the lower level sensor 9 (Figure 1) is not activated due to:

1. Switch the water still ON when pushing the POWER button

No water in the water supply system

Check the inlet water pressure

The evaporator inlet port 16 is clogged (Figure 1) due to a large amount of scale, water does not enter into the evaporator 2 (Figure 1)

To check fulfill Section 9.1.6 regarding items 3, 4, 5, 6 of the recommendations for the maintenance.Switch the water still ON when pushing the POWER button. Make sure that water enters freely into the evaporator 2

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PROBLEM POSSIBLE CAUSE SOLUTIONthrough the inlet 16 (Figure 1). Fulfill items 3, 4, 5, 6 of Section 9.1.6 in reverse order.If water does not enter into the evaporator, perform the maintenance completely (Section 9.1)

The screener located in the solenoid valve 25 (Figure 2) is clogged

Close the valve for supplying raw water, unscrew the filling hose nut from the solenoid valve fitting 25 (Figure 2) and flush the mesh with water

The diaphragm for water flow rate limitation 14 is clogged

Remove the hose from the condenser inlet fitting 15 (Figure 1), unscrew the fitting, unscrew the diaphragm and clean it

The circuit for the connection of lower level sensor 9 (Figure 1) is failed

Check the circuit for the connection of lower level sensor 9

The inlet valve 25 is not opened

Check the valve for functioning

The evaporator 2 (Figure 1) or equalizer 7 are overfilled with water, and the top level sensor in the evaporator 23 or the level sensor in the equalizer 24 are activated

Check is there is free water drain from the evaporator 2 (Figure 1)

The cooling water drain hose should be located at a slant, and it should not have any twists and kinks. The difference in levels between the fitting 26 (Figure 2) and location of hose connection to sewage system should be at least 0.3 m. The hose outlet should not abut against the internal wall of sewage pipe.

Shorten the hose or increase the water still installation height, if required

The evaporator inlet port 16 (Figure 1) is clogged due to a large amount of scale in the evaporator 2 (Figure 1). Make sure that water enters freely into the evaporator 2 through the inlet 16 (Figure 1). To check fulfill Section 9.1.6 regarding items 3, 4, 5, 6 of the recommendations for the maintenanceSwitch the water still ON when pushing the POWER button. Make sure that water enters freely into the evaporator 2 through the inlet 16 (Figure 1). Fulfill items 3, 4, 5, 6 of Section 9.1.6 in reverse order.If water does not enter into the

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PROBLEM POSSIBLE CAUSE SOLUTIONevaporator, perform the maintenance completely (Section 9.1)

The level sensor in the evaporator 23 or the level sensor in the equalizer 24 contacts the walls of the evaporator 2 or equalizer 7 (Figure 1)

Check if the sensors 23 and 24 contact the the walls of the evaporator 2 or equalizer 7 (Figure 1)

ALARM red LED is lit

The screener located in the solenoid valve 25 (Figure 2) is clogged

The self-cleaning filter fitted with pressure gauge (option) is cloggedThe orifice of the diaphragm 14 for the water flow rate limitation (Figure 1) is clogged)

Close the valve for supplying raw water, unscrew the filling hose nut from the solenoid valve fitting 25 (Figure 2) and flush the mesh with water in case of cloggingCheck pressure at the outlet of self-cleaning filter with pressure gauge, flush the filter mesh with water, if required.Unscrew the fitting 15 of the condenser inlet, unscrew the diaphragm 14 and clean the water flow rate limitation orifice with a bodkin

Low pressure at the water still inlet

Check the pressure in the water supply system (optimal pressure is 0.15-0.2 MPa). Adjust the pressure, if required, using the pressure regulator towards the increase (0.2-0.5 MPa). Optimal is the mode, when the water temperature at the fitting 26 outlet (Figure 2) is equal to 60-80 °C.If the pressure does not correspond to the design pressure and is within a range of 0.1-0.14 MPa, unscrew the condenser inlet fitting 15, unscrew the diaphragm 14 and bore out the water flow rate limitation orifice up to 1.3 mm for the Liston A 1104, up to 2 mm for the Liston A 1110, and up to 2.8 mm for the Liston A 1125.In the operation mode, check the water temperature at the fitting 26 outlet (Figure 2), the temperature should be within a range of 60-80 °C.The operation at a pressure under 0.15 MPa is not guaranteed.The operation at a pressure under 0.1 MPa is not allowed

The water still The covers are not abut Check the covers for planeness on an 28


PROBLEM POSSIBLE CAUSE SOLUTIONemit steam significantly

tightly against the evaporator 2 or condenser 6 (Figure 1)

even surface. Straighten the cover, if required

A large amount of scale is formed on the electric heaters 17 (Figure 1)

Perform the maintenance completely (Section 9.1)

One or more electric heaters 17 are burnt (Figure 1)

Replace the electric heaters 17 (Figure 1)

The capacity is decreased

Mains voltage is dropped

Check mains for voltage

The cooling water flow rate is decreased


A large amount of scale is formed inside the heat exchanger 19 (Figure 1)


14. Maintenance of the water distiller without built in tank

14.1. The routine maintenance during the operation period and periodical maintenance should be provided for the water distiller:

14.2. Daily check visually the self-cleaning filter for clogging. In the case of contamination, wash it with water.

14.3. In case of a decrease in water still performance, significant steam emission from the water still, you should remove salt-contained deposits from the heat exchanger and the orifice of the nozzle 9. To do this, unscrew the ball valve and the water intake pipe 7 (Figure 5), unscrew the nozzle 9, tighten the fitting without nozzle. Start the water distiller for 30 seconds in the working mode, then turn off the water distiller and insert the nozzle in the reverse order having cleaned the nozzle orifice with a bodkin.

14.4. Once a month (or more often if necessary), the evaporation chamber and electric heaters should be cleaned of scale using citric acid solution (50 g per liter). To do this, it is necessary to fill solution into the evaporator. Fill evaporator with water, add cleaning solution for descaling. Close the raw water supply valve. Bring to a boil and boil for 10-20 minutes. Then, after 60 minutes, drain the solution (for the Liston A1210 water stills, drain

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solution through the tap for waste water drain from the evaporator. For Liston A 1204 do it manually).

14.5. Rinse with water and pour the solution of baking soda for 5 minutes (10 g per liter), drain and finally rinse with plenty of water 3-4 times. If necessary, treatment can be repeated.

14.6. In case of poor quality of raw and, consequently, produced water, water must be completely drained from the water still and the inner surfaces of condensation and evaporation chambers should be thoroughly cleaned by flushing with solution of baking soda (10 g per liter) followed by wiping (especially along the contour of bottoms of the evaporator and collector) with a lint-free cloth.

15. Common problems and solutions for the water distiller without built in tank

Problem, symptoms and additional features Possible cause Solutions 1. When switching the POWER button ON, the

POWER LED is not lit and there is no heating

1. No contacts in the mains cord

2. LED is failed3. The protective thermal switch is

triggered due to electric heater overheating. The

cause is lack of water

4. One or more electric heaters are burnt

1. Check the cord2. Replace the switch

3. eliminate the cause of lack of water. The

possible cause may be heat exchanger /

diaphragm clogging. For recovery of thermal switch, wait until the heaters are cooled

down, and then push the lock button located on

the thermal switch housing

4. Replace the electric heaters

2. The water still emit steam significantly

1. Low water pressure at the water still inlet2. Diaphragm or heat exchanger clogging

1. Increase the water pressure up to 0.4 MPa

or clean the filter2. Clean the diaphragm with a bodkin, flush the

heat exchanger 30


Problem, symptoms and additional features Possible cause Solutions

3. The capacity is decreased

1. A large amount of scale is formed on the

electric heaters2. One or more electric

heaters are burnt

1. Remove scale form the electric heaters

2. Replace the electric heaters

16. Transportation16.1. The water distillers should be transported in covered vehicles

(railway cars, containers, covered motor vehicles, holds, etc.), and the containers with the water distillers should be attached securely in order to prevent any possible displacement.

17. Storage17.1. The packaged water distiller should be stored indoors at an ambient

temperature of minus 50 С up to plus 40 С and a relative humidity of up to 98 % at +25 С.

17.2. The air in the premises should not contain such impurities as corrosive vapors and gases.

18. Guarantee and service18.1. When used accordingly to operating manual this product has

limited warranty for TWO YEARS. Guarantee, mentioned above is limited for the heaters for 6 months.

18.2. Service & Maintenance of the distillers should be performed by qualified personnel.

Distiller serial number____________________________Date of manufacturing _______________________________Quality control signature ____________________________

Stamp

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Liston, LLC

249037 Shatskogo str. 14, Obninsk, Kaluga region, Russian Federation

+7 484 399 07 [email protected]

www.liston.ru

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mailto:[email protected]

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