omtech LCW-5201-US 6L Water Chiller Laser Engraver Accessories User Manual

omtech LCW-5201-US 6L Water Chiller Laser Engraver Accessories

Product Information

• Product Name: CW-5200 Industrial Chiller
• Model Number: V20230421
• Input Voltage: N/A (not mentioned in the manual)
• Dimensions: N/A (not mentioned in the manual)
• Compressor Power: N/A (not mentioned in the manual)
• Fan Power: N/A (not mentioned in the manual)
• Water Pump Power: N/A (not mentioned in the manual)
• Refrigeration Capacity: N/A (not mentioned in the manual)
• Refrigerant: N/A (not mentioned in the manual)
• Refrigerant Charge: N/A (not mentioned in the manual)
• Max. Working Temperature: N/A (not mentioned in the manual)
• Tank Capacity: N/A (not mentioned in the manual)
• Inlet / Outlet Fitting: N/A (not mentioned in the manual)
• Max. Lift: N/A (not mentioned in the manual)
• Max. Flow: N/A (not mentioned in the manual)
• Net Weight: N/A (not mentioned in the manual)

Product Usage Instructions

1. Fill the water tank with distilled or deionized water. If cooling carbon steel equipment, add the appropriate amount of anticorrosive additive. Do not fill the tank completely. Pay attention to the water gauge and ensure that the water level is at the appropriate level, between the middle and top of the green area. Pour slowly to avoid overflowing.
2. Connect the chiller’s water outlet port to the water inlet of the product to be cooled, and connect the chiller’s water inlet port to the water outlet of the product to be cooled.
3. Plug in the power cable and turn on the water chiller. The pump will start working, and any initial bubbles should disappear after a minute or two. Note that the fans and other components of the chiller may not activate immediately as they are automatically controlled and will only start working when needed by the machine.
4. Adjust the water chiller’s parameters using the control panel as needed.

Temperature Adjustment

To adjust the water temperature:

1. Press the SET button to enter settings mode.
2. Use the buttons to modify the desired water temperature.
3. Press the RST button to save and exit.
4. Press the SET button to exit without saving. If there is no activity for 20 seconds, the settings mode will also exit without saving. The set temperature will be displayed on the lower readout, and the chiller will gradually bring the actual water temperature to that level over time.

Password Protection

To set a password for advanced settings:

1. Press and hold the SET button until “00” is displayed in the
2. The actual Temp display and “PAS” is displayed in the Set Temp display.
3. Use the buttons to select your desired password.
4. Press the SET button to save and exit.

Parameter Adjustment

To adjust parameters in advanced settings:

1. Enter your password again.
2. The device will enter the advanced settings mode.
3. Use the buttons to cycle through the parameters.
4. Use the buttons to modify the current parameter.
5. Press the RST button to save and exit.
6. Press the SET button or wait to exit without saving any changes.

Safety Information

Warning!

• DO NOT use this product with an incompatible, unstable, or ungrounded power supply. Only use with well-grounded 3-prong 110V/60Hz outlets. Do not use a 3 to 2-prong adapter to allow it to run from an ungrounded outlet.
• DO NOT run this chiller without first filling it with an adequate amount of distilled water or specially formulated laser-safe antifreeze. If neither is available, deionized water is preferable to tap water, which can cause faster scaling and microbial growth that will shorten the life expectancy of your chiller and attached devices.
• Place this chiller in a dry well-ventilated environment away from heat sources but warm enough to avoid freezing temperatures.
• Ensure at least 1 ft. (30 cm) of open space next to its side air inlets.
• Ensure at least 1′8″ (50 cm) of open space above its top air outlet.
• When cooling a laser engraver, take care that this device does not cause the room’s humidity to exceed safe levels. Some smaller rooms may require additional ventilation to ensure safe engraving.

Caution!

• Remember that the OUTLET of the water chiller should connect to the INLET of the product to be cooled. Similarly, the water chiller’s inlet should be connected to the other machine’s water outlet.

Specifications

Package List

• 1 × Industrial Chiller
• 1 × Power Cord
• 1 × Alarm Signal Output Plug
• 1 × Spare Fuse

Parts Diagram

Front

Back

Installation

1. Fill the water tank with distilled or deionized water. For cooling carbon steel equipment, include the appropriate amount of anticorrosive additive. DO NOT fill completely. Pay attention to the water gauge and ensure that the water level at the appropriate level. Use the water level gauge and ensure the level is between the middle and top of the green area. “FULL” is actually overfull. Pour slowly and do not allow the water to overflow.
2. Connect the chiller’s water outlet port to the water inlet of the product to be cooled and connect the chiller’s water inlet port to the water outlet of the product to be cooled.
3. Plug in the power cable and turn on the water chiller. The pump will begin working. There may be some bubbles at first. These should disappear after a minute or two. Don’t worry if the fans and other components of the chiller do not activate. They are usually automatically controlled and will not begin working until they are needed by the machine.
4. Check the water level of the tank again using the water level gauge. The water level of the chiller may be lowered as it fills the cooling path in your device. If necessary, carefully add more water to the chiller to maintain appropriate levels of water. Keep the level between the middle and top of the green area. If the water level drops sharply or continues to go down during normal use, turn off your device and examine the water pipes and cooling path for leakage. Repair any such leaks before restarting the devices and continuing work.
5. Adjust the water chiller’s parameters with the control panel as needed.

Operation

Control Panel

INT Ctrl

| Intelligent control mode indicator light

The temperature will be kept 3°F (2°C) cooler than the room Users can adjust this value as needed

CT Ctrl

| Constant temperature mode indicator light

A constant 77°F (25°C) temperature will be maintained Users can adjust this value as needed

PARAM Set| Parameter setting mode indicator light

ALM OUT

| Alarm status indicator light

This light comes on when an alarm is sounding

Room Temp

| Room temperature indicator light

Hold ▼ to display the current ambient room temperature

ST DLA

| Startup delay indicator light

This light comes on during startup as the device checks its power supply

RST| Enter button
SET| Settings button

Temperature Adjustment

• Press SET to enter settings mode. Use ▲ and ▼ to modify the desired water temperature. Press RST to save and exit. Press SET to exit without saving. If no activity is detected for 20 seconds, settings mode will also exit without saving. The set temperature will be displayed on the lower readout, and the chiller will bring the actual water temperature to that level over time.

Password Protection

• Press ▲ and then hold SET until “00” is displayed in the Actual Temp display and “PAS” is displayed in the Set Temp display. Use ▲ and ▼ to select your password and press SET to save and exit.

Parameter Adjustment

• Enter your password again and the device will enter the advanced settings mode. Use ▲ and ▼ to cycle through the parameters. Use ▲ and ▼ to modify the current parameter. Press RST to save and exit. Press SET or wait to exit without saving any changes.

Order

|

Code

|

Item

|

Range

|

Defaults

|

Note(s)

---|---|---|---|---|---

1

|

F0

|

Water Temperature

|

F9–F8

|

25

| Celsius value of constant temperature mode

2

|

F1

|

Temperature Difference

|

−15 to +5

|

−2

|

Celsius value of the difference between water and air temperatures in intelligent control modeCelsius

3

|

F2

|

Cooling Hysteresis

|

0.1–3.0

|

0.8

| Celsius value of the acceptable deviation from F0 and F1 values

4

|

F3

|

Control Mode

|

0–1

|

1

| 1 is intelligent control mode

0 is constant temperature mode

5

|

F4

|

Overheated Water Alarm

|

1–20

|

10

| Celsius value above the F0 and F1 values causing an alarm

6

|

F5

|

Overchilled Water Alarm

|

1–20

|

15

| Celsius value below the F0 and F1 values causing an alarm

7

|

F6

|

Overheated Room Alarm

|

40–50

|

45

|

Celsius value of the ambient room temperature causing an alarm

8| F7| Password| 00–99| 8|

9

|

F8

|

Highest Allowed Water Temperature

|

F0–40

|

30

|

Celsius value of the highest acceptable temp. in intelligent mode

10

|

F9

|

Lowest Allowed Water Temperature

|

1–F0

|

20

|

Celsius value of the lowest acceptable temp. in intelligent mode

For example:

Code| Item| Defaults| Value in Case 1| Value in Case 2| Value in Case 3
---|---|---|---|---|---
F0| Water Temperature| 25|  | 28| 25
F1| Temperature Difference| −2| -3|  |
F2| Cooling Hysteresis| 0.8| 0.5| 2.0| 1.0
F3| Control Mode| 1| 1| 0| 0
F4| Overheated Water Alarm| 10| 10| 5| 4
F5| Overchilled Water Alarm| 15| 10| 10| 14
F6| Overheated Room Alarm| 45| 45| 45| 45
F7| Password| 8| 8| 8| 8
F8| Highest Allowed Water Temperature| 30| 31| 30| 30
F9| Lowest Allowed Water Temperature| 20| 25| 5| 5

• Case 1: The chiller is in intelligent control mode and requires the water to be between 77–88°F (25–31°C). With the ambient room temperature kept constant, the water temperature will remain 5°F (3°C) lower with a deviation of ±0.9°F (±0.5°C). An alarm will sound if the water temperature is 18°F (10°C) higher or lower than this target.
• Case 2: The chiller is in constant temperature mode and requires the water to be at 82°F (28°C) with a deviation of ±3.6°F (±2°C). An alarm will sound if the water temperature is 9.6°F (5°C) higher than this target or if the water is 18°F (10°C) lower than this target.
• Case 3: The chiller is in constant temperature mode and requires the water to be at 77°F (25°C) with a deviation of ±1.8°F (±1°C). An alarm will sound if the water temperature goes above 86°F (30°C) or below 50°F (10°C).

Restore Factory Settings

• While the chiller is in standby mode, press and hold ▲ and ▼ until “rE” is displayed. All settings have now been returned to factory defaults.

Maintenance

• Regularly clean the air filter of dust and debris with a soft cloth or vacuum.
• Periodically clean the inside of the inlet and outlet hoses to ensure no clogs form. To do this, soak the hoses in a mild detergent solution with a low concentration of biocide (e.g. bleach) for 8–24 hours. Rinse the hoses with tap water before reinstalling them.
• Periodically clean the water tank with a mild detergent solution with a low concentration of biocide (e.g. bleach) to prevent and remove scaling.
• Disconnect the chiller from its power supply and drain all water before transporting it or placing it in storage.

Troubleshooting

The chiller does not turn on.

| Check your electrical connections, fuse box, and circuit breaker.

Condensation forms on the chiller.

| Increase chilling temperature or decrease the ambient room temperature.

Water drainage is slow.

| Open the water tank inlet to allow air to flow more

freely.

Scaling builds up in the water tank.

| Clean with a mixture of water, mild detergent, and bleach.

Error Messages
When alarms occur, an error code will be displayed as above. The alarm noise can be muted by pressing any button on the control panel.

Error Message

|

Meaning

---|---
E1| The ambient room temperature is too high. Reduce it or cease work.

E2

| The water temperature is too high. Cease work and replace or cool it. More refrigerant may be needed. Other problems which might exist include obstructed air flow from a clogged filter or inadequate space around the chiller’s vents, an unstable power supply, an excessive heat load from the machine being cooled, or a poor parameter configuration.
E3| The water temperature is too low. Cease work and replace or heat it.

E4

| The room temperature sensor has malfunctioned. Cease work and repair

or replace it.

E5

| The water temperature sensor has malfunctioned. Cease work and repair

or replace it.

E6

| The water flow has a problem. Cease work and check for low water,

obstructions, or a pump malfunction.

Contact Us

• Thank you for choosing our products! If you have any questions or comments, contact us at [email protected] and we’ll resolve your issue ASAP!
• For a .pdf copy of the latest version of these instructions, use the appropriate app on your smartphone to scan the QR code to the right.
• LCW-5201-US Rev. 21 Apr. 2023

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