TOOLOTS Industrial Chiller User Manual

Industrial Chiller
User Manual

Industrial Chiller

Dear user:
Thank you very much for buying our series products. In order to make good use of this machine’s function and characteristic, please read this instruction carefully before setting and then keep it for future using. Please contact us, if you have any further questions. We would like to supply the highest-quality and fastest service to help you solve problems. The warranty period of this product is 1 year.
Customer service number: 860577-86717710 86 15657757677
WeChat: +8615657757677

Danger

Do not operate the device where water, corrosive or inflammable gas can be found or near inflammable substances| Fire Accident can be caused.
---|---
Do not place any inflammable substances on the device
Do not damage the power lines of the device; or attach over stress or pressure from both sides| Wire damage or electric shock can be caused.
Do not operate device with the power lines dipped in oil or water
Do not operate the device under vibrations or strong impacts.| Fire accident, injury or electric shock can be caused.
Do not disassemble the electric elements in the electric cabinet.
Do not touch the high-temperature or rotating parts of the device
Do not operate the device or make wiring connection with hands wet.
Wiring connection must be operated by professional electrician.| Wiring connection by personnel without Professional competence can cause electric shock.
Safely validation must be made after the device is moved or natural disaster happens| Fire accident, electric shock and injury can be caused with validation ignored.
The equipment shall be operated in conditions with fewer dusts and away from water and oil.| Fire accident or damage can heca1sed when operating the device in improper places.
Emergency stop electric circuit shall be set  external the device during installation to ensure that the device can be stopped and the power supply can be cut off on emergent circumstances.| Electric shock can be caused when operating without culling off the power supply.
Do not contact any part of the body with the metal parts of the connecting terminals when opening the electric cabinet| Accident such as electric shock and injury can be
Never apply transformers. power capacity less than the power of the device.| Accident such as fire accident, electric shock and injury can be caused with the instructions ignored.
---|---
Appropriate arrangements shall be made when making operations such as installation etc. According to the net weight of the device.
Spontaneous disassembly and alteration of the device is strictly prohibited.| Accident such as fire accident, electric shock and injury can be caused with the instructions ignored.
Make sure that the environmental condition where the device is being operated is controlled within the application temperature and humidity.
The designated installation methods shall be followed strictly.
When making combination application of the device with other devices, the application must be made according to the relevant instructions on the combination| Accident such as electric shock, injury, damage and lire accident can be caused with the instructions ignored.
---|---
When making operations of conveying and setting etc, pay attention to the stability of the device to avoid accidents caused by dropping or slipping| Injury or failure can be caused with the instructions ignored.
Do not drag the wires and the rotation parts of the device when making the conveying.
Restarting can probably happen when the power supply is resumed after the power failure, therefore settings of the device shall be properly made to avoid accidents of the restarting and ensure the personal safety.| Accident of injury can be caused with the instructions ignored.
Make sure that the device is operated stably.
Keep the device away from strong impacts; avoid Keep the device away from strong impacts; avoid disconnecting the power supply too frequently.| Accident of electric shock, injury, damage and fire accident can be caused with the instructions ignored.

Operation cautions

1. The transportation and installation of the machine must be completed by the professional peoples who know the technical parameters of the machine very well .
2. After finishing the machine’s installation but before sue, the machine’s must be cleaned and inspected to see if there is any tools and sundries forgotten in the machine
3. After installation, it needs to check the machine’s parts, electric elements and electric wires to see if they have, please fasten them again, then the machine can be put into operation.
4. When installation, the machine must be placed vertically and be placed on the flat ground.
5. Please make sure that the earth wire connects the ground correctly in order to avoid the electric shock accident.
6. The use of three-phase five-line system, according to the head of the line marking the correct connection, U,V,W next phase, N to zero line, PE earthing grounding resistance requirements of less than 0.1ohm
7. The main power supply should be rated at 10 percent, the frequency should be rated frequency of less than 2 percent, if the power fluctuations may not exceed the scope of this boot, if the damage caused by forced reboot, the company will not within the scope of the warranty.
8. Before starting the device, inspect whether there’s something abnormal on the device, whether the power supply is correct connect and the voltage is complied with requirements.
9. If warning is made on the reserved phase, Please shift the positions of connection wires U and V of the Power supply.
10. The operators shall be made essential trainings before operation including: Possible dangers when operating the device; The working principle of the machine and the correct application methods; The regulation of the device parameters and the possible results; Safety apparatuses of the device and safety knowledge. Stop any unsafe activities that can damage the device
11. The managerial personnel have the obligation to inform to the operators knowledge relevant to safety, operations and performances; and possible dangers during operation and how to make safety protection on operators themselves and the device.
12. The device is provided with the function of overload. When overload is detected, both the pump and compressor will be stopped. Please inspect the causes for the overload. The overload detector can be resumed to work normally by resetting it after remove the failures.
13. Inspect to make sure that the cooling water valve and the cooling water tower are kept open to ensure that there’s enough cooling water to run into the device
14. Make sure that the ball valves for refrigeration water inlet/outlet are opened make sure that the water tank of the cooler and the condenser are full of water; operation without water is strictly prohibited.
15. The parameter of the temp, controller has been set before deliver, Please don’t amend the parameter optionally by non-specialist users.

Maintenance precautions

1. Do not maintain the equipment while it is working, if necessary, please turn off the power supply during maintenance
2. All the repairs and maintenance must be made with the main power supply off Lock the disconnected switches if necessary
3. All repairs and maintenance must be carried out by designated professionals. Maintenance personnel must clearly understand the performance and parameters of the machine.
4. Careful inspections shall be made after the repair or maintenance. The device can only be handed to the operators after all are confirmed to be in order. Records shall be kept.
5. Condenser shall be cleaned under the following circumstances: The chiller has been operated for over half years; the circulating water is in order while warnings are often made on high pressure, the refrigeration capacity is lowered or the high pressure indication is ever 20Kg/em2 under operations.
6. Keep the cleanliness of the water tower and the air ventilation surrounding the water tower to avoid the irrelevant materials to enter the water tower to reduce the heat dissipation efficiency.
7. The blades of the water pump of the chiller can be blocked by water fouling after the suspension for a long period. Please rotate the water pump before starting to ensure that the water pump is in order.
8. If the chiller will be suspended for a long time, especially in winter, the residual water in the water tank and condenser shall be discharged to prevent the condenser from being frost
9. Cleaning shall be made on the cooling fin and evaporator of the chiller when the Air cooled chiller has been operated for 3 to6mohths with methods as follows: Clean up the dusts and irrelevant materials in the cooling fin with compressed air; the cleaning methods of the evaporator can be referred to water cooled chiller.

Steps before starting the chiller

Air-cooled chiller startup steps

1. Please Connect the water supply pipe to ensure that there is always water in the water tank in the machine.
2. Please connect the water pipe to the device to ensure that the circulating water is running two the device. And ensure that the water temperature is below 30℃ , the pressure is within 3-6Bar and the flow rate reach the device requirement.
3. Connect the main power line according to the wiring specifications
4. Open the Pump switch on the control box of the device, the Pump starts to work.
5. Open the refrigeration switch, and the machine will work after a delay of 3 minutes.CT8810 temperature control operation see page 9.

water-cooled chiller startup steps

1. Please Connect the water supply pipe to ensure that there is always water in the water tank in the machine.
2. Please connect the water pipe to the device to ensure that the circulating water is running two the device. And ensure that the water temperature is below 30℃ , the pressure is within 3-6Bar and the flow rate reach the device requirement.
3. Please refer to the installation diagram of the water chiller, and connect the cooling tower and the chiller with water pipes 4、In order to prevent the cooling water pump from entering the air, the cooling water pump should be installed at a lower position than the water outlet of the cooling tower.
4. Connect the main power line according to the wiring specifications
5. Open the switch of the water pump and check whether the water between the water pump and the water tank is circulating；
6. Open the refrigeration switch switch. After a delay of 3 minutes; the cooling water tower and cooling tower circulating water pump work; check whether the running direction of the cooling tower water pump and cooling tower is forward (clockwise). If it is running forward, check whether the cooling water of the cooling tower is circulating. If the cooling water circulates normally, the machine can be used normally.
7. If the temperature display shows “A11” after power on. It may be caused by the fact that the circulating water of the cooling tower is not circulating, or the flow rate of the water pump is not enough, or the running direction of the cooling tower and the cooling water pump is reversed. Open the power distribution box of the machine, press the recovery button of the pressure controller a few times by hand, and press any button of the temperature controller to eliminate “A11”. Check whether the cooling water pump is entering air; check whether the cooling water pump is blocked, check whether the working direction of the cooling tower and the cooling water pump is clockwise; check whether the flow rate of the water pump is greater than 12 cubic meters per hour.

NS501 digital voltage phase sequence relay operation manual

NS501 digital voltage phase sequence relay is an intelligent power protection device, using microcontroller and digital processing technology, set voltage display, over and under voltage protection, phase protection and phase sequence protection functions in one, Chinese liquid crystal display, with simple operation, small size, high reliability. Can be widely used in all kinds of low voltage electrical control system, replace the traditional phase sequence relay and over and under voltage protector.

Ⅰ. Technical characteristics
● Main Function

1. Voltage display: display the current voltage of the power supply
2. Over voltage and under voltage protection: cut off the power supply if the device exceeds the set value.
3. Phase loss protection: .Cut off the power supply when the three-phase power supply is phase loss.
4. Phase sequence protection: If the phase sequence of the three-phase power supply is incorrect, power off the device.
5. Audible and visual alarm: audible and visual warning will be given when the above fault occurs.

● Main technical parameters

1. Power supply voltage: three-phase 280V ~ 450V AC
2. Voltage measurement accuracy: ±1%
3. Output contact capacity: 2A/250VAC
4. Working environment: temperature -20℃ ~ 70℃, humidity 85%, no condensation
5. Frequency: 50/60Hz
6. Weight: 85g

Ⅱ. Operation

• Function display
  In normal display, the middle of the LCD displays the current supply voltage value (the voltage between AB phases).

• Functions of the Alarm function.
  When the power supply over voltage or under voltage, missing phase or equal fault occurs, the LED screen flashes “over voltage”, “under voltage”, “missing phase”, “wrong phase” and other words, the relay output contact is disconnected, and an audible and visual alarm is issued at the same time. You can press any key to eliminate the alarm sound.

• Set the over voltage and under voltage values
  Press the “Sel” key for 2 seconds, the LED display “setting” and “over voltage” words, then use the “▲” or “▼” key to change the over voltage set value (” ▲ “key increase 1V,” ▼ “key decrease 1V, hold more than 0.5 seconds to rapidly increase or decrease). Press “Sel” again to set the under voltage value in the same way, and press “Sel” again to exit the setting state. (Note: Over voltage and under voltage values can also be set by internal parameters F11 and F12, the effect is the same.)
  When the over voltage value is set to the maximum, OFF is displayed, indicating that the over voltage alarm function is disabled. If the under voltage is set to the minimum value, OFF is displayed, indicating that the under voltage alarm function is disabled.

• Virtual gateway Sets internal parameters
  In the display voltage state, long press the “▲” key for 5 seconds, you can enter the parameter setting state, then the display display “Fxx”, xx is two digits, indicating the parameter code. Use the “▲” or “▼” key to select the parameter code, press the “Sel” key to display the corresponding parameter value of the parameter code, then use the “▲” or “▼” key to set the parameter value, after the setting is complete, press the “Sel” key to return to display the parameter code state.

Internal parameter codes are shown in the following table:

category| code| parameter name| Set range| factory set up| unit| note
---|---|---|---|---|---|---
Voltage setting class| F11| Over voltage setting value| 200 – 500
OFF| 437| V| The alarm is generated when the voltage is greater than or equal to 437V, and is cleared when the voltage is less than or equal to 435V. The under voltage alarm is generated when the voltage is less than or equal to 304V, and cleared when the voltage is greater than or equal to 306V. OFF: Disables the over voltage or under voltage alarm function
F12| Under voltage setting| OFF
150 – 380| 304| V
F13| Over voltage and under voltage recovery difference| 1 – 20| 2| V
Action time setting class| F21| Over voltage and under voltage operation time| 0.1 – 20| 5.0| seconds| Each type of fault takes effect only after a specified duration. Phase loss or Misplace Action Time OFF: Disables the phase loss or misplace alarm function
F22| Lack of phase movement time| 0.1 – 20| 3.0| seconds
F23| Misphase action time| 0.1 – 20
OFF| 2.0| seconds
Functional class| F90| Displays the model and version number|
F98| Shows the phase difference between CA and AB| The normal phase sequence shows about 240 degrees, the wrong phase shows about 120 degrees, and the missing phase shows 0
| End| Exit the setting state|

Ⅲ. wiring diagram

● Note on a line connection diagram:

1. Relay output is closed when the meter is in normal operation and disconnected when the meter is out of power or in fail safe state.
2. Phase AB is the working power supply of the instrument. The voltage displayed during the operation of the instrument and the over-voltage and under-voltage protection are all based on the voltage of phase AB.

CT8810 User Guide (V5.00)

Main Function
Temperature display, temperature controlling(refrigeration/heat mode can be set),compressor start delay protection, temperature sensor error alarm, one external alarm input, password, C/F unit change.
Technique Index

1. Temperature display range: -50～150℃(The resolution is 0.1℃) -58～302℉(The resolution is 0.1℉)
2. Power supply: AC 220V±10% or AC 380V±10% 50Hz (Refer to the wiring diagram)
3. Operating environment: temperature -10℃～50℃, humidity≤85%
4. Relay contact capability: 20A/250VAC (pure resistive load)
5. Temperature sensor: NTC R25=5kΩ, B (25/50) =3470K

Operating Guide

1. Meaning of the index lights on the panel**
   Index light| Name| Light| Flash**
   ---|---|---|---
   | Temp setting| In the state of temp setting| –
   | Refrigeration| Refrigerating| Ready to refrigerate, in the state of compressor start delay protection
   | Heat| Heating| Ready to heat, in the state of compressor start delay protection
   | –| –| –
   | –| –| –
   | Alarm| –| Alarm state

2. Meaning of the LED display
   The LED usually shows temperature, if it shows “SHr”, it means the temperature sensor is short, and “OPE” means the temperature sensor is open. The temperature and the alarm code (Axx) will show alternately when in the alarm state. The code is showing below: Code| Meaning| Explanation
   ---|---|---
   A11| External alarm| Alarm from external alarm signal, refer to the internal parameter code “F50”
   A21| Temperature sensor error| Open or short (showing “OPE” or “SHr”)

3. Set temperature
   Press the key “S” for at least 2 seconds, then enter the state of temperature setting, the LED displays the setting temperature, then using “▲” key or “▼” key can change the parameter (the key “▲” adds 0.1°C, the key “▼” minuses 0.1°C, press and hold it over 0.5 seconds can add or minus rapidly). After setting, press “S” again, then exit the state of parameter setting. Pressing the key “M” in the setting process means cancel and exit, but the setting value will not be saved.

4. Refrigerate (or heat) forcibly
   When displaying current temperature, the temperature is between “setting temperature – temperature difference” and “setting temperature + temperature difference”, the system may or not refrigerate, you press the key “▼” and hold it for 5 seconds, the controller will enter the refrigeration state forcibly when in the refrigeration mode, and stop refrigeration when the temperature is below “setting temperature – temperature difference”; the controller will enter the heat state forcibly when in the heat state, and stop heating when the temperature is above “setting temperature + temperature difference”.

5. Advanced operation
   Press the key “M” and hold it for 5 seconds, and if you have set the password, the LED display the “PASS” to hint you to enter the password, you can use the key “▲” and “▼” to enter the password, if the password is correct, the LED will display the parameter code, use “▲” or “▼” to select the parameter code, pressing the “S” key can make it to show the value of the parameter after select the parameter, you use “▲” or “▼” to set the parameter, then press the “S” key to return the state of showing parameter code after finishing setting. Pressing the key “M” can exit the parameter setting state when display the parameter code, pressing the key “M” means cancel when in the process of setting parameter, and the parameter will not be changed. Internal parameter code is showing below: Sort| Code| Parameter name| Range| Factory setting| Unit| Remark
   ---|---|---|---|---|---|---
   Temperature| F11| Setting temperature| F14 – F13| 0| ℃/℉| The setting range is limited by F13 and F14
   F12| Temperature difference| 0.1 – 20| 1.0| ℃/℉|
   F13| Max setting temperature| -58 – 302| 302| ℃/℉| Notice: the controller will follow the rule of F14<F11<F13 forcibly, if you find out that one parameter can not be adjusted, it is because the parameter is limited by other parameters, you must first adjust other parameters
   F14| Min setting temperature| -58 – 302| -58| ℃/℉
   F19| Temp sensor adjustment| -20.0 – 20.0| 0.0| ℃/℉| Adjust the temperature sensor bias
   Compressor| F21| Compressor delay time| 0 — 10| 3| min|
   F29| Temp controlling mode| COOL/HEAT| COOL| –| COOL: refrigeration mode HEAT: heat mode
   Alarm| F50| External alarm mode| 0 — 4| 0| –| 0: without external alarm
   1: always open, unlocked 2: always open, locked
   3: always closed, unlocked
   4: always closed, locked
   System means| F80| Password| OFF 0001 — 9999| OFF| –| OFF means no password 0000 System means clearing password
   F81| Temperature unit| C/F| C| –| C: Centigrade F: Fahrenheit
   Testing| F98| Reserved|
   F99| Testself| This function can attract all relays in turn, and please don’t use it when the controller is running!
   | End| Exit|

Basic Operating Principle

1. Temperature controlling
   The controller has 2 temperature controlling mode: refrigeration and heat (F29). Temperature controlling point is controlled by “setting temperature (F11, or press the “S” key for some time to set)” and “temperature difference (F12)”. In refrigeration mode, the controller begins to refrigerate when the temperature sensor is over “setting temperature ＋ temperature difference”, and it stops refrigerating when the temperature is under “setting temperature － temperature difference”; In heat mode, the controller begins to heat when the temperature sensor is under “setting temperature － temperature difference”, and it stops heating when the temperature is over “setting temperature ＋temperature difference”.

2. Compressor delay time
   The compressor delay time is set by F21, for example, 3 minutes. The controller contains a “compressor halt calculagraph”, and it begins to time when compressor stops, the program first check the calculagraph before booting the compressor next time, the program will immediately boot the compressor if the calculagraph reach 3 minutes ,if the calculagraph doesn’t reach 3 minutes, it will boot again when the calculagraph reaches 3 minutes. Thus you can ensure that the boot alternation is over 3 minutes after halt, so it can prevent to breaking the compressor as a result of frequent boot. In addition, the controller doesn’t boot the compressor within 3 minutes after turning on the power supply, thus the compressor can also be protected in the state of power cut and then power on.

3. External alarm
   The controller can connect a switch value as external alarm source (Pin 4, 5), when the external alarm occurs, the controller stops, displays the alarm code “A11”. External alarm signal has 5 modes (F50): 0: without external alarm, 1: always open, unlocked, 2: always open, locked; 3: always closed, unlocked; 4: always closed, locked. “Always open” means in normal state, external alarm signal is open, if closed, the controller is alarm; “Always closed” is on the contrary. “Locked” means that when external alarm signal becomes normal, the controller is still in the alarm state, and it needs to press any key to resume.

4. Password
   In order to prevent irrespective persons from changing the parameters, you can set a password (F80), and if you have set a password, the controller will hint you to enter the password after you press the key “M” for 5 seconds, you must enter the correct password, and then you can set the parameters. If you don’t need the password, you can set F80 to “OFF”. Notice that you must remember the password, and if you forget the password, you can not enter the set state.

Wiring Diagram

Notice

1. Please read the guide carefully before using, and set the parameter accurately.
2. Please place the temperature sensor at the place of air return of the air-cooler.
3. Please use the temperature sensor which is supplied by our company.

NS701 operation manual

Ⅰ. Product overview
This product is an intelligent motor protector, which is an upgrade of the traditional thermal relay. The product adopts digital processing technology, liquid crystal display, through the built-in current transformer to detect the three-phase load current of the motor, can display the three-phase current and judge whether there is overload, missing phase, three-phase current imbalance and other faults according to the current. When the above fault occurs, the internal relay contact is disconnected and the motor power is cut off.
Ⅱ. main function

• Current display
• Overload protection
• Phase loss protection
• Three-phase unbalanced protection
• Automatic recovery
• Fault current lock
• Built-in time relay function

Ⅲ. Technical indicators

Ⅳ. Operation guide

• View A,B,C three -phase current
  During normal operation, the three-phase average current is displayed. Press the “Sel” key to switch to display the three-phase currents of A, B, and C. When overload, phase loss, three-phase unbalance and other faults occur, the display current flashes, indicating that this is the current locked at the moment of the fault (the motor is powered off at this time, and the actual current is 0).

• Motor rated current value setting (setting current)
  Press and hold the “Sel” button for 2 seconds, the LED will display “current setting”, use the “▲” or “▼” button to change the set value (press and hold the “▲” or “▼” button to fire continuously), press “Sel” after setting” key to exit the setting state.

• Alarm (protection) status recovery
  When an overload, phase loss or three-phase unbalance alarm occurs, the words “overload”, “phase loss” and “unbalance” will flash on the display, and the relay will be disconnected and locked in the disconnected state. At this time, just press the “▲” or “▼” key to restore from the protection lock state.

• parameter settings
  In the state of displaying the current, press and hold the “▲” key for 5 seconds to enter the parameter setting state. At this time, the display shows “FXX”, where xx is two-digit number, indicating the parameter code. Use the “▲” or “▼” key to select the parameter code, and press the “sel” key to display the parameter value corresponding to the parameter code. At this time, use the “▲” or “▼” key to set the parameter value. After the setting is completed, press “sel” key to return to the State of displaying parameter codes.
  Internal parameter codes are shown in the following table: category| code| parameter name| Set range| factory set up| unit| note
  ---|---|---|---|---|---|---
  Overload protection| F11| Motor rated current| 1.0 – 100| 20| A| This parameter can be directly set by pressing Sel key (setting current).
  F13| Fixed time limit action time| 0.1 – 60.0| 3.0| seconds| Overload time is adjustable
  Phase loss and three-phase unbalanced classes| F21| Three phase unbalanced action point| 1 – 50| 20| %|
  F22| Three phase unbalance operation time| 0.1 – 60.0
  OFF| 5.0| seconds| Phase loss or three-phase unbalance Action Time If this parameter is set to OFF, the phase loss or three-phase unbalance alarm function is disabled
  F23| Phase loss action time| 0.1 – 60.0
  OFF| 2.0| seconds|
  Auto recovery class| F51| Automatic recovery times| 0 – 10| 1| time| If F51 is set to 0, automatic recovery is not allowed.
  For details, see Working Principles
  F52| Automatic recovery interval| 0.1 – 99.9| 15.0| minutes
  F53| Time between repeated failures| 1 – 999| 60| minutes
  Additional function class| F61| Power on delay| 0 – 999| 0| seconds| It is equivalent to the function of a time relay
  The test class| F90| Displays the product model and version number| –
  F91| Manufacturer reserves the| –
  F92| Manufacturer reserves the| –
  | End| Exit the setting state| –

Ⅴ. Basic Working Principle

• Current detection
  The load current is detected through the built-in current transformer, so the three phase lines of the protected motor must pass through the three holes of the current transformer respectively.
  Overload protection
  When the load current exceeds the rated current (parameter F11) and the duration reaches the set overload action time (parameter F13), the relay is disconnected and the power supply of the motor is cut off. That is, the overload action time is fixed.

• Three-phase unbalanced protection
  The three-phase unbalance rate is defined as: the absolute value of the difference between any phase current and the three-phase average current, take the maximum value and divide it by the three-phase average current, which is the three-phase unbalance rate.
  When the three-phase unbalance rate is greater than the set three-phase unbalance action point (parameter F21), and the duration is greater than the three-phase unbalance action time (parameter F22), the relay is disconnected and the motor power is cut off.
  When the load current is too small, three-phase unbalance detection is not performed to prevent malfunction in the state of motor power failure.

• Phase loss protection
  The lack of phase can be considered as a serious three-phase unbalance. When the three-phase unbalance rate is greater than 50%, it is considered to be lack of phase. The action time of phase loss is set by parameter F23. Generally, this time is shorter than the three-phase unbalance action time (parameter F22).

• Automatic recovery
  The purpose of the automatic recovery function is to have the opportunity to automatically resume work when a fault protection shutdown occurs, preventing unattended equipment from being shut down for a long time due to occasional failures. The behavior of automatic recovery can be set freely with parameters F51, F52, F53:For example, F51=3, F52=15, F53=60, the effect is: after a fault occurs, it will automatically recover (F52=15) after 15 minutes, so that it can be retried 3 times (F51=3), if the fault occurs repeatedly 3 times more than times, and the interval between repeated failures is shorter than 60 minutes (F53=60), it is locked in the shutdown state, and manual recovery is required (press the “” key or power off).
  If the automatic recovery function is not required, just set F51 to 0.

• Time relay function
  If the time relay function is enabled by setting parameter F61, after the protector is powered on, the relay will not be pulled in immediately, but will be pulled in after a delay time. The delay time is set by parameter F61. Countdown display. Equivalent to a delayed start time relay function. F61=0 means to turn off the time relay function.

Ⅵ. Wiring diagram

1. As shown in the figure, the three phase wires of the motor pass through the three holes A, B, and C respectively.
2. NO is the normally open point of the internal relay, NC is the normally closed point, and CO is the common point. When the protector is in the state of power-off, the internal relay is in the state of release, 1, 3 off, 2, 3 on. When the power is on, the relay immediately pulls in (if the time relay function is enabled, the delay pulls in, see parameter F61), 1, 3 on, 2, 3 off, and controls the motor power supply. When overload, phase loss, three-phase unbalance and other faults occur, the relay will be released and the motor power will be disconnected.

Trouble shooting

should be an error in the phase sequence. Please turn off the power first, then swap any two phase wires, and then turn on the power. If it still alarms, repeat the above steps until the phase alarm disappears.
System Failure| 1 Pump overload
2. Water tank is short of water| ⑴ Water pump scuffs after long time non- using.(Help start water pump)
⑵ Main motor lack water or water pump breaks down, change water pump.
A11| 1. refrigerant leak
2. There is no water in the water tank inside the machine
3. The water pump is clogged and the water is not circulating
4 Dirty condenser
5. The surrounding environment is not ventilated and the heat dissipation is not good (Air-cooled chiller)
6. Cooling        tower        water shortage (Water-cooled chiller)
7. Cooling tower or cooling water pump motor reverses (Water-cooled chiller)| 1. Ask professionals to find the leak point and fill it with refrigerant after welding. Then press the pressure controller restore button
2. add water to the tank.
3. Remove foreign objects from the pump.
4. Air-cooled chiller cleaning air condenser fins. Water-cooled chiller cleaning water-cooled condenser.
5. Move the machine to a well-ventilated area.
6. Add water to the cooling tower to ensure that the cooling tower is not short of water (Air-cooled chiller). and make the circulating water pump work normally.
7. Swap any two wires of the cooling tower motor
EE or -EE| Temperature sensor short circuit or Disconnect| Replace with new temperature sensor

Circuit diagram

3/5/Ton Air-cooled chiller circuit diagram (460V)

3/5/Ton Air-cooled chiller circuit diagram (230V)

10Ton Air-cooled chiller circuit diagram (460V)

10Ton Air-cooled chiller circuit diagram (230V)

10Ton water-cooled chiller circuit diagram (460V)

Diagram of installation

Installation diagram of water-cooled chiller

Installation diagram of air-cooled chiller

YZ-XXF Series ,air cooled Industrial chiller technical parameter

Model| YZ-03F| YZ-05F| YZ-08F| YZ-10F| YZ-12F| YZ-15F| YZ-16F| YZ-20F| YZ-30F| YZ-40F| YZ-50F
---|---|---|---|---|---|---|---|---|---|---|---
Cooling capacity| kw| 7.5| 12.5| 20| 25| 30| 35| 40| 50| 75| 100| 125
Kcal/Hr| 6450| 10750| 17200| 21500| 25800| 30100| 34400| 43000| 64500| 86000| 107500
power Input (Kw)| 3.2| 4.7| 7.8| 9.5| 10.8| 13.1| 14.6| 17.7| 26.5| 35| 45
Compressor type| Scroll type
Power supply| 230V/3ph/60HZ Or 460V/3ph/60HZ
(Ambient temp)| ≤40℃
Refrigerant| R407C
Flow Control| Expansion valve / Capillary
Pump Power (kw)| 0.75| 0.75| 1.5| 1.5| 1.5| 2.2| 2.2| 2.2| 3| 3| 4
water flow rate (m3/h)| 1.6| 2.15| 3.4| 4.3| 5.2| 6| 6.8| 8.6| 12.9| 17.2| 21.5
Pipe size| 1〃| 1〃| 1-1/2〃| 1-1/2〃| 1-1/2〃| 2〃| 2〃| 2〃| 2〃| 2〃| 3〃
Evaporator type| Water tank type/Shell and tube type
Noise Lever| db (A)| ≤50| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60
Safekeeping| Lacks phase, leakage, Lacks the water, overload, Over voltage and Under voltage protection etc.
Overall size| Length (mm)| 910| 1280| 1350| 1450| 1450| 1450| 1600| 1600| 2100| 2300| 2300
Width (mm)| 710| 710| 850| 850| 850| 850| 850| 850| 1100| 1200| 1200
Height (mm)| 1200| 1300| 1450| 1450| 1420| 1420| 1420| 1420| 1310| 1450| 1450
Weight (Kg)| 135| 214| 173| 315| 340| 450| 510| 540| 780| 850| 950

YZ-XXS Series ,Water cooled Industrial chiller technical parameter:

Model| YZ-03S| YZ-05S| YZ-08S| YZ-10S| YZ-12S| YZ-15S| YZ-16S| YZ-20S| YZ-30S| YZ-40S| YZ-50S
---|---|---|---|---|---|---|---|---|---|---|---
**** Cooling capacity| kw| 8.5| 15| 21.5| 29.5| 36| 44| 47.6| 58.6| 87.5| 1 2.7| 146.5
Kcal/hr| 7300| 12930| 1850| 25500| 3100| 37900| 4100| 50500| 7540| 1080 0| 123000
Power Input (Kw)| 2.8| 4.3| 7.1| 10.8| 10.5| 14.1| 14.9| 17.7| 24.7| 33.1| 42.5
Compressor type| Scroll type
Power supply| 230V/3ph/60HZ Or 460V/3ph/60HZ
(Ambient temp)| ≤40℃
Refrigerant| R407
Flow Control| Expansion valve / Capillary
Cooling water flow (m3/h)| 1.9| 3.2| 4.5| 6.2| 7.8| 9.2| 9.8| 12| 17.8| 24| 29.3
Water flow rate     (m3/h)| 1.6| 2.6| 3.7| 5.1| 6.5| 7.6| 8.7| 10| 14.8| 20.1| 24.8
Pipe size| 1〃| 1〃| 1-1/2〃| 1-1/2〃| 1-1/2〃| 2〃| 2〃| 2〃| 2-1/2〃| 2-1/2〃| 2-1/2〃
Evaporator type| Water tank type/Shell and tube type
Noise Lever| db(A)| ≤50| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60| ≤60
Safekeeping| Lacks phase, leakage, Lacks the water, overload, Over voltage and Under voltage protection etc.
Overall size| Length(mm)| 910| 1280| 1450| 1450| 1450| 1600| 1600| 1600| 2100| 2300| 2300
Width (mm)| 710| 710| 850| 850| 850| 850| 850| 850| 1100| 1200| 1200
Height (mm)| 1100| 1200| 1320| 1320| 1320| 1320| 1320| 1320| 1210| 1350| 1350
Weight (Kg)| 105| 128| 173| 232| 255| 450| 510| 540| 780| 850| 950

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>