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Picture 2-9

：

Liquid Pipe Solenoid Valve

Cut off the refrigerant supply circuit immediately after shutdown to prevent the

evaporator from freezing.

2.3.3 Hot-gas Bypass Valve

Picture 2-10

：

Hot-gas By-pass Valve

It is used for bypass refrigerant gas at low temperature to avoid compressor

frequent start-up for accurate temperature control.

2.3.4 Flow Switch

Picture 2-11

：

Flow Switch

The flow switch is adopted to avoid system damage caused by the cold water

circulation failure of the water chiller.

2.3.5 Liquid Level Indicator

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Содержание SIC-10W

Страница 1: ...SIC W Water cooled Water Chillers Date Mar 2022 Version Ver D English ...

Страница 2: ......

Страница 3: ...2 2 Main Components and Functions 17 2 2 1 Compressor 17 2 2 2 Condenser 17 2 2 3 Drying Filter 17 2 2 4 Thermal Expansion Valve 18 2 2 5 Evaporator 18 2 2 6 High and Low Pressure Controller 19 2 3 Options 19 2 3 1 Refrigerant Indicator 19 2 3 2 Liquid Pipe Solenoid Valve 19 2 3 3 Hot gas Bypass Valve 20 2 3 4 Flow Switch 20 2 3 5 Liquid Level Indicator 20 2 4 Main Electrical Components 22 2 4 1 T...

Страница 4: ...ce 35 6 1 Filling the Refrigerant 38 6 2 Components Maintenance 39 6 2 1 Condenser 39 6 2 2 Evaporator 40 6 3 Maintenance Schedule 41 6 3 1 About the Machine 41 6 3 2 Check after Installation 41 6 3 3 Daily Checking 41 6 3 4 Weekly Checking 41 6 3 5 Montly Checking 41 6 3 6 Trimonthly Checking 42 6 3 7 Half yearly Checking 42 6 3 8 Yearly Checking 42 6 3 9 3 year Checking 42 Table Index Table 1 1 ...

Страница 5: ...l Expansion Valve 18 Picture 2 6 Evaporator 19 Picture 2 7 High and Low Pressure Controller 19 Picture 2 8 Refrigerant Indicator 19 Picture 2 9 Liquid Pipe Solenoid Valve 20 Picture 2 10 Hot gas By pass Valve 20 Picture 2 11 Flow Switch 20 Picture 2 12 Liquid Level Indicator 21 Picture 2 13 Thermal Overlaod Relay 22 Picture 3 1 Machine Installation Location 25 Picture 6 1 Fill in the Refrigerant 1...

Страница 6: ...ssor overload protection pump overload protection phase reverse alarm anti freezing protection high low pressure protector which features stable performance and long service life It can quickly cool down and maintain stable temperature to meet the requirements of customers This series of products work following the heating and cooling exchange principle which is an indispensable device for cooling...

Страница 7: ...uracy of 0 1 All adopt branded compressors with low noise high efficiency and long service life SIC W adopts fin style condenser design without any need of cooling water for excellent heat transfer and rapid cooling Accessory option Medium and high pressure pumps are optional to meet different water pressure requirements Water tank level sensor is optional to check whether the water level is in no...

Страница 8: ...s Other chapters contain instructions for the daily operator Any modifications of the machine must be approved by SHINI in order to avoid personal injury and damage to machine We shall not be liable for any damage caused by unauthorized change of the machine Our company provides excellent after sales service Should you have any problem during using the machine please contact the company or the loc...

Страница 9: ... 308 W mm 550 550 830 830 865 865 W1 mm 273 273 370 370 459 459 W2 mm 164 164 230 230 202 202 W3 mm 164 164 230 230 162 162 D mm 1080 1080 1200 1200 1470 1470 P1 cooling water inlet inch 1 11 2 11 2 2 2 21 2 P2 cooling water outlet inch 1 11 2 11 2 2 2 21 2 P3 freezing water inlet inch 1 1 11 2 11 2 2 2 P4 freezing water outlet inch 1 1 11 2 11 2 2 2 P5 water tank outlet inch 11 2 11 2 11 2 11 2 1...

Страница 10: ...70 459 180 W2 mm 295 295 215 229 202 325 W3 mm 205 205 205 230 162 505 D mm 2235 2235 2235 2870 2870 3285 P1 cooling water inlet inch 21 2 21 221 2 21 2 21 2 21 2 21 2 P2 cooling water outlet inch 21 2 21 221 2 21 2 21 2 21 2 21 2 P3 freezing water inlet inch 2 2 21 2 21 2 21 2 21 2 P4 freezing water outlet inch 2 2 21 2 21 2 21 2 21 2 P5 water tank outlet inch 11 2 11 2 11 2 1 1 1 P6 water tank o...

Страница 11: ...illed Water Outlet 1 11 2 2 Chilled Water Inlet 1 11 2 2 Water Tank Outlet 1 2 Water Tank Overflow Port 1 2 Protective Devices Compressor Overload relay pump Overload relay Chilled Water Circuit High and low pressure switch anti freeze switch Water Circuit Flow switch optional water tank level sensor optional bypass valve Power VAC 4 3Φ 400VAC 50HZ Measures Exchange 1kW 860 kcal hr 1RT 3 024kcal h...

Страница 12: ...t 2 21 2 21 2 Chilled Water Inlet 2 21 2 21 2 Water Tank Outlet 1 2 1 Water Tank Overflow Port 1 2 1 Protective Devices Compressor Overload relay pump Overload relay Chilling Water Circuit High and low pressure switch anti freeze switch Water Circuit Flow switch optional water tank level sensor optional bypass valve Power VAC 4 3Φ 400VAC 50HZ Measures Exchange 1kW 860 kcal hr 1RT 3 024kcal hr 10 0...

Страница 13: ...ch and control switch Warning High Voltage This label is posted on enclosure of the electrical control cabinet Warning Be careful Pay more attentions at the places where this sign is attached Attention Drain the water inside when power off at the cold day to avoid freezing Attention No need for regular inspection because all the electrical parts in the control unit are fixed tightly Pump pressure ...

Страница 14: ...s operation and maintenances upon machines without referring to the Manual prior to machine using 2 Any incidents beyond human reasonable controls which include man made vicious or deliberate damages or abnormal power and machine faults caused by irresistible natural disasters including fire flood storm and earthquake 3 Any operational actions that are not authorized by Shini upon machine includin...

Страница 15: ...ve optional 6 Refrigerant indicator optional 7 Expansion valve 8 Evaporator 9 Anti freezing switch 10 Flow switch option 11 Water level liquid indicator option 12 Temp sensor 13 Water tank 14 Float ball switch 15 Pump 16 Water pressure gauge 17 By pass valve 18 Sluice valve for middle and high pressure pump 19 Hot gas by pass valve option 20 Pressure controller Picture 2 1 Working Principle Diagra...

Страница 16: ...h circulates in this way Hot gas bypass function when the temperature of chilled water reaches the set temperature the compressor continues to work When the temperature drops to the set temperature of the hot gas bypass valve the hot gas bypass valve opens Part of the compressed high temperature and high pressure refrigerant directly reaches the evaporator through the hot gas bypass valve which ne...

Страница 17: ... the water chiller Picture 2 2 Compressor 2 2 2 Condenser 1 It is the heat output device which can discharge the heat absorbed by the refrigerant in the evaporator and the heat converted by the compressor consumption to the cooling medium 2 Our company uses the air cooled condenser Tube fin style Picture 2 3 Condenser 2 2 3 Drying Filter 1 Drying filter function Remove the impurities in the refrig...

Страница 18: ...ansion valve can throttle and depressurize the refrigerant and regulate the refrigerant flow into the evaporator 2 The heat expansion valve is installed in front of the evaporator Picture 2 5 Thermal Expansion Valve 2 2 5 Evaporator 1 The evaporator is a device that outputs the refrigerant which absorbs the heat of the cooled object in the evaporator so as to achieve the refrigerating purpose 2 Ou...

Страница 19: ...set to 2bar 3 It will give the alarm when the compressor outlet air pressure is higher than 25bar or the compressor suction port is lower than 2bar Picture 2 7 High and Low Pressure Controller 2 3 Options 2 3 1 Refrigerant Indicator Picture 2 8 Refrigerant Indicator 1 The refrigerant indicator is used to detect whether the refrigerant is filled appropriately 2 The refrigerant indicator is used to ...

Страница 20: ...s Bypass Valve Picture 2 10 Hot gas By pass Valve It is used for bypass refrigerant gas at low temperature to avoid compressor frequent start up for accurate temperature control 2 3 4 Flow Switch Picture 2 11 Flow Switch The flow switch is adopted to avoid system damage caused by the cold water circulation failure of the water chiller 2 3 5 Liquid Level Indicator ...

Страница 21: ...21 42 Picture 2 12 Liquid Level Indicator With the liquid level indicator it can check whether the water level in the tank is in normal range ...

Страница 22: ...3 Thermal Overlaod Relay The description of thermal overlaod relay 1 Wiring terminal A2 Used to lead out terminal A2 of the contactor coil 2 Setting current adjusting scale 3 Reset button blue H Manual reset A Auto reset 4 Release indicator green 5 In case of manual reset the indicator bar will be push out after tripping and there is no tripping indication in case of automatic reset 6 Test button ...

Страница 23: ...onnected to the power live wire N is connected to the null wire and G is connected to the earth wire 6 Power supply Main power voltage and nameplate specified voltage 5 Main power frequency and nameplate specified voltage 2 7 Install the pipe system according to the installation configuration diagram and use thermal insulation materials to preserve the heat of the cold water pipe 8 Select correspo...

Страница 24: ...13 Since this series of machine is cooled by cooling water circulation the user must provide enough cooling water for the water chiller according to the required water amount in the manual Otherwise the high pressure pressure of the machine will be high and the cooling capacity will decline The power wire connection of the water chiller must be done by the professional electrician The circuit of t...

Страница 25: ...ater tower 8 Cooling water pump 9 Chilled water circulation 10 Cooling water circulation 11 Mould Cooling 12 Cooling hopper 13 Oil cooling Picture 3 1 Machine Installation Location 3 3 Power Connection The SIC W series must be connected with the power of 3Φ 400V 50Hz and earth wire Attention Before power connection please make sure that the main power switch is turned off ...

Страница 26: ...Main Screen The system will enter the main screen after countdown which displays as follows 2 Alarm Screen In case of unit failure the alarm screen is as follows screens include the main screen and the alarm screen The system will enter the main screen after countdown which displays as In case of unit failure the alarm screen is as follows ...

Страница 27: ...screen will automatically pop up The operation details of query and reset faults are as follows Attention Pump rotating direction should be correct Attention Before starting the system make sure that cooling water pump is turned on Check the water tank of the chiller Do not start the machine when there is no water left in water tank We shall not be liable for any damages caused by this reason Atte...

Страница 28: ...ss button to start the water pump 4 Press button to start the compressor 4 5 Shutdown 1 Turn off the switch of compressor 2 Turn off the pump switch If it adopts the quick molding cycle and low cooling water temperature keep continuous running of water pump till the mould temperature rises to non condensated temperature then turn off the pump switch 3 Switch the main power switch to OFF position A...

Страница 29: ...eration For the modification operation of parameter value the user s modification of setting temperature will be described as an example 4 6 2 User Setting All the parameters in user settings please refer to following table No Parameter Name Factory Default Setting Range Remark 1 Lock Temp No Yes No Yes the Set Temp can not be modified on the main screen when locked No the Set Temp can be modified...

Страница 30: ...urned off 3 Compr Use Time To query the cumulative operation time of the compressor 4 Comm Setting To set baud rate parity bit stop bit and communication address Communication protocol Modbus RTU 5 Machine Info To query the machine version information 6 Clock setting To query and set the system time 4 6 4 System Time Set Note Press the button can exit the system time set quickly and the set value ...

Страница 31: ...ater temp Sensor breaks Check if the temperature probe is in proper contact Water temp Sensor short circuit Anti freeze Sensor breaks Anti freeze Sensor short circuit Anti freeze Temp Low Check if the antifreeze temperature is lower than the set temperature of antifreeze protection Blower fault Only applicable for air cooled series Compressor 1 runs the test Stop the compressor and do not stop the...

Страница 32: ...the pump Check if the antifreeze input is consistent with the switch setting Water temp Sensor breaks Check if the temperature probe is in proper contact Water temp Sensor short circuit Anti freeze Sensor breaks Anti freeze Sensor short circuit Anti freeze temperature is too low Stop the compressor and do not stop the pump Check if the antifreeze temperature is lower than the set temperature of an...

Страница 33: ...e compressor button has pressed If the LP Check Delay is not 0 then compressor 3 runs the test Compressor 3 overload Compressor 3 runs the test Compressor 4 pressure high Test when the compressor button has pressed Stop compressor 4 only without affect other equipments to work Check if the input is consistent with the switch setting Compressor 4 pressure low If the LP Check Delay is 0 test when th...

Страница 34: ...e for air cooled series Compressor 4 runs the test Check if the blower 4 fault input input is consistent with the switch setting Water flow short Test after the pump starts for Pump on delay time Stop the unit Check if the water flow input is consistent with the switch setting Pump Overload Test after pump starts Stop the unit Check if the pump overload input is consistent with the switch setting ...

Страница 35: ...35 42 6 Repair and Maintenance ...

Страница 36: ...36 42 ...

Страница 37: ...ife and prevent the safety accident 4 The water used in the system must have water treatment because the high alkaline water will accelerate the corrosion of the copper pipe and reduce the service life of the heat exchanger The PH value of water is in the range of 7 0 8 5 5 Keep the machine room dry clean and well ventiliated 6 The operation and service of the machine should be done by qualified t...

Страница 38: ...rn air pipe Monitor the weight change of the electronic scale and stop filling the refrigerant when it reaches the rated filling weight When the machine is powered on the display pressure of the high pressure gauge is about 13 15bar and the display pressure of the low pressure gauge is about 3 5bar Note the ambient temperature is 30 and the cooling water temperature is about 20 Picture 6 2 Fill in...

Страница 39: ...t be cleaned regularly so that the machine can maintain its good working performance If the cooling water has been treated with water purification it is recommended to use hydrogen peroxide to sterilize and remove the algae and then check whether there is water scaleafter washing by the high pressure water gun If the cooling water is not purified it can be cleaned with citric acid or aminoxanthic ...

Страница 40: ...fect so it is necessary to clean the evaporator at fixed periods in order to keep its working performance Clean the evaporator according to the method of cleaning the condenser and the remove the water scale from the drainage port Attention Drain the water inside the evaporator and the condenser away when the machine stop running under 0 If the evaporator freezes drain the water in it before resta...

Страница 41: ...stallation Voltage V Hz Fuse specification 1 Phase A 3 Phase A Check phase sequence of power supply 6 3 3 Daily Checking Check switch functions Check all the electrical wires Check whether pressure gauges are accurate Check whether compressor temperature is normal Check whether cooling water circulation is normal 6 3 4 Weekly Checking Check electrical connections Check protection alarm function of...

Страница 42: ...6 Trimonthly Checking Check whether condenser is under blockage 6 3 7 Half yearly Checking Check whether the circulation pipe has leakage Check and clean the condenser and evaporator Check and clean the filter and expansion valve Check system s performance Clean condenser 6 3 8 Yearly Checking Check whether the contactor is normal 6 3 9 3 year Checking PC board renewal No fuse breaker renewal ...

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