Technical Support
FAQ - Heating and Cooling
Model Selection
Please click the formula download button in this page and according to the formula to select suitable models.
SIC-33W-R2-P and SCD-160U/120H are suitable.
These chillers can only meet requirement of water pressure. Because the water temperature is controlled by the hysteresis control system, so in order to protect compressor from being damaged due to run/stop frequently, controlling accuracy of standard model can not be ensured within 1〜1.5℃.
SIC-84W-R2-HP is available. when use it, please fully open the by pass valve between the water inlet and outlet.
Operational Doubts
In the catalog, there is experimental data tested under the standard working condition, but there must exist any difference. We have no relative tested data that how much reduction of cooling capacity every 1℃ambient temperature increase.
The unit of cooling tower is RT, (1RT=3024Kcal/hr).the cooling capacity of cooling tower equals to the chiller’s. Considering the environment, it is needed to increase the safety factor with 1.5 times.
When choosing chiller water tank, you should think about the sizes and length of pipes in cooling system and water should enough filled the pipes.
Experience: usually choose three times of the chiller pump flow rate per minute (three minutes flow of the water pump is the capacity of water tank). Generally it should at least equals to flow of water pump in 1min.
When choosing chiller water tank, you should think about the sizes and length of pipes in cooling system and water should enough filled the pipes.
Experience: usually choose three times of the chiller pump flow rate per minute (three minutes flow of the water pump is the capacity of water tank). Generally it should at least equals to flow of water pump in 1min.
Trouble Shooting
All machines of shini's equip with versatile protecting system so as to ensure safe operation. This problem was caused by unstable pressure of cooling water which fluctuate at 2bar. Because all of STM of shini's equip with pressure protector at inlet of cooling water whose setting point is 2bar, when pressure of cooling water deviates down to be less than this value, STM will stop work automatically, so cutomer should ensure the minimum pressure of cooling water being more than 2 bar.
Maintenance
Please following method below to clean the condenser:
1.Disassemble both side cover;
2.Clean the copper pipes one by one by using special brush and abluent which should be no corrosion;
3.Washing pipes completely by water;
4.Assemble the covers.
1.Disassemble both side cover;
2.Clean the copper pipes one by one by using special brush and abluent which should be no corrosion;
3.Washing pipes completely by water;
4.Assemble the covers.
The reasons causing the situation are that the supply water of the condenser is not enough or dry filter is plugged. Please check if there is some problem in the water supply system inside the company, and then replace the dry filter. If alarm still exists, please clean condenser.
Other Issues
It can be docking directly on structure by refering to manual. There is a port in control box which connects it to the main modules, it can be referred to circuit diagram. There are three types of chiller: SICC-60A/SICC-90A/SICC-120A ,they can be combined freely upon one’s requirements, and the maximum is 15.
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