Precise Temperature Control Industrial Cooling System
Thailand is located in the tropical zone. It is hot all year round. In machine operation, electronic devices, and other industrial equipment, increased temperatures can cause overheating, leading to equipment malfunction, reduced efficiency, and potential fire hazards. Similar to how a fever impacts human health and performance, excessive heat in machinery necessitates effective thermal management. Chillers are essential components for maintaining optimal operating temperatures and preventing these issues.
Chillers are refrigeration units designed for cooling applications, available in various sizes. Their primary function is to produce cooling, reduce temperature, and dissipate heat. They utilize water as the primary medium for heat exchange and transfer. In industrial settings, chillers are crucial for cooling machinery, extending equipment lifespan, and maintaining operational efficiency.
Utilizes water for heat exchange and dissipation from the cooling unit.
Chillers are widely adopted in industrial facilities to manage machine heat, ensuring longevity and sustained performance.
BTU, or British Thermal Unit, is a standard unit of measurement quantifying the amount of heat energy required to raise the temperature of one pound of water by one degree Fahrenheit at constant pressure. It is widely used in the United States and other regions to assess heating and cooling capacities.
The process for measuring BTUs typically involves the following steps:
Define the System: Identify the specific system or equipment for which the BTU measurement is being performed (e.g., heating system, cooling system, furnace, water heater).
2. Identify the Substance: Determine the substance involved in the heat transfer process. Water is commonly used, but other substances may be relevant depending on the application.
3. Measure Temperature Change: Record the initial and final temperatures of the substance. For instance, when measuring BTUs generated by fuel combustion in a furnace, you would measure the water temperature before and after the heat exchange.
4. Calculate Heat Energy: Employ the following formula to compute the heat energy in BTUs:
Heat energy (BTU) = mass (lb) × specific heat (BTU/lb°F) × temperature change (°F)
In this formula:
“mass” refers to the mass of the substance in pounds.
“specific heat” denotes the specific heat capacity of the substance in BTU per pound per degree Fahrenheit (BTU/lb°F).
“temperature change” represents the difference in temperature in degrees Fahrenheit.
5. Account for Efficiency: In certain scenarios, it may be necessary to consider the efficiency of the system or device to accurately determine the actual BTU output or input.
BTU measurement provides a standardized method for quantifying thermal energy, essential for various applications including HVAC (heating, ventilation, and air conditioning), cooking, and industrial processes.
Operational Interaction: CO2 Laser Tube and Chiller System
Optional Accessory: Heat Exchanger
The Heat Exchanger connects to the chiller and is submerged in water, providing enhanced cooling capabilities.
Price: 3,000 THB !!
Heat Exchanger Installation with Chiller Unit
Heat Exchanger – Supplemental Accessory for Chillers to Achieve Lower Water Temperatures | SALECNC.net
Chiller Water Cooling vs. Cooling Tower
Cooling Towers are commonly utilized in industries such as plastic injection molding. However, they present significant drawbacks, including large physical size, open-system operation which facilitates dust and sediment ingress, leading to operational issues and a reduced lifespan. Consequently, industrial facilities are increasingly adopting Chiller Water Cooling systems. Chillers offer a more compact footprint, conserve workspace, operate as closed systems to prevent contamination, and provide extended operational longevity.
Cooling Tower
Chiller Water Cooling
❌ Open system
✅ Closed system
❌ Open system design allows dust and sediment ingress, leading to clogging, corrosion, and impaired functionality.
✅ Closed system design effectively prevents dust and sediment contamination. Water changes are convenient.
❌ Difficult maintenance and cleaning procedures.
✅ Simplified cleaning and maintenance.
❌ Large footprint requires significant operational space.
✅ Compact design optimizes workspace utilization.
❌ Shorter operational lifespan.
✅ Extended operational lifespan.
❌ Lower initial cost but higher long-term expenses due to maintenance, repairs, and frequent replacement.
✅ Higher initial investment yields greater long-term value through reduced maintenance, operational costs, and enhanced reliability.
The unit will adjust the temperature to the normal temperature. For example, the normal temperature is 32 degrees. The machine will adjust the temperature down to 32 degrees
Can adjust the temperature The machine will work only when the temperature drops to the set temperature
เมื่อเครื่องตรวจพบความผิดปิกติที่ช่อง PV จะแสดงอุณหภูมิ และรหัสข้อผิดพลาดสลับกันไปมา ในกรณีที่ตรวจพบข้อผิดพลาดหลายจุด สามารถกดปุ่ม Up หรือ Down เพื่อดู
Normal temperature water set temperature = [low temperature water set temperature] + [F01 normal temperature water temperature difference] , Not controlled by the upper and lower temperature limits
F01
Automatic working
1
0～1
0: not used / 1: used
F03
Low temperature water set temperature
23.0℃
【F06】～【F05
The function of the parameters is detailed in: 5 Control Logic.
F04
Control temperature difference
1.0℃
0.1～20.0℃
The function of the parameters is detailed in: 5 Control Logic.
F05
Temperature setting upper limit
30.0℃
【F06】～90 ℃
Low temperature water set the settable temperature range.
F06
Temperature setting lower limit
20.0℃
-38～【F05】℃
Low temperature water set the settable temperature range.
F07
Temperature over temperature upper limit
35℃
0~99℃
Alarm when the temperature of low temperature water or normal temperature water is greater than or equal to this value.
F08
Over temperature lower limit
4℃
-38～99℃
When low temperature water or normal temperature water temperature is less than or equal to this value, it will alarm.
F09
–
F10
Off the compressor temperature difference
3.0℃
0.3～15.0℃
–
F11
Heating temperature difference
2.0℃
0.1～20.0℃
When the electric heating is controlled (that is, the [function selection] is set to 2 or 3), this parameter is valid. / The function of the parameters is detailed in: 5 Control Logic.
F12
Low temperature water temperature compensation
0
-9.9～9.9℃
–
F13
Room temperature water temperature compensation
0
-9.9～9.9℃
Add
F14
Compressor anti-frequent start time
2 minutes
1～5 minutes
–
F15
Compressor start delay
30 seconds
0～255 seconds
Press the start button for at least the set time before allowing the compressor to start
F16
High/low temperature alarm delay
10 seconds
0～255 seconds
After the set time is delayed after the power is turned on, the detection of low temperature water and normal temperature water temperature is too high/low faults.
F17
Flow alarm delay
3 seconds
0～255 seconds
After pressing the power button, it will alarm after detecting the flow switch input for this time
F18
Level alarm delay
5 seconds
0～255 seconds
After power-on, it will alarm after detecting the input of the level switch for this time
F19
Pressure detection delay
10 seconds
0～255 seconds
After turning on the compressor and delaying the set time, start to detect pressure failure.
F20
DI4 input selection
0
0～1
0: Normal temperature flow / 1: Phase sequence switch
F21
Pressure Switch
0
0～2
0: Normally open / 1: Normally closed / 2: Disabled
(When set to normally open, the switch is closed and alarms)
F22
Room temperature flow/phase sequence
0
0～2
0: Normally open / 1: Normally closed / 2: Disabled
(When set to normally open, the switch is closed and alarms)
F23
Low temperature flow switch
0
0～2
When set to normally closed, the switch is disconnected and alarms
/ When set to disable, the state of the corresponding switch is not detected.
F24
Level Switch
0
0～2
When set to normally closed, the switch is disconnected and alarms
/ When set to disable, the state of the corresponding switch is not detected.
F25
Compressor overload switch
0
0～2
When set to normally closed, the switch is disconnected and alarms
/ When set to disable, the state of the corresponding switch is not detected.
F26
Alarm relay function
1
0～1
0: Alarm signal, control the relay output according to whether the unit has a fault
(**Relay NC point: disconnect when the unit fails, and close when the unit is in standby or normal operation; )
(**Relay NO point: pulls in when the unit fails, and disconnects when the unit is in standby or normal operation. )
/ 1: Normal operation signal, according to whether the unit is operating normally to control the relay output
(**Relay NC point: disconnect when the unit is operating correctly, and close when the unit is in standby or failure; )
(**Relay NO point: when the unit is operating correctly, it is closed, and when the unit is in standby or faulty, it is disconnected. )
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