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Home> Tech Q/A |
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| Technical problems
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| Q： |
Refrigerant low pressure becoming too high |
| A： |
Failure cause: Expansion valve is broken
Solving method: Change expansion valve
Failure cause: Refrigeration system heat levelis too low
Solving method: Increasing the heat
Failure cause: Hrat valve opens too much
Solving method: Decreasing heat valve opening
Failure cause: Expansion valve heat load is too big
Solving method: Decreasing inlet temperature and inlet air
capacity,Increasing inlet pressure
Failure cause: Refrigerant high pressure becoming too high
Solving method: Decreasing refrigerant high pressure
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| Q： |
Refrigerant low pressure becoming too low |
| A： |
Failure cause: Refrigerant is not enough
Solving method: Add refrigerant
Failure cause: Refrigeration system load is too small
Solving method: Increasing heat load of refrigerant system
Failure cause: Heat valve opens not enough
Solving method: Adjust heat valve
Failure cause: Refrigerant high pressure becoming too low
Solving method: Increasing refrigerant high pressure
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| Q： |
Refrigerant high pressure becoming too high |
| A： |
Failure cause: Environment temperature is too high(Air-cooled)
Solving method: Increasing environment aeration or decreasing environment temperature
Failure cause: Refrigerrant high pressure switch setting is incorrect
Solving method: Adjust the setting
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| Q： |
Outlet air pressure drop is too big |
| A： |
Failure cause: Air volume capacity exceeds the stangard rating
Solving method: Choose a air dryer which fits the capacity
Failure cause: Inlet valve are not fully opened
Solving method: Open all valves
Failure cause: Air filter clogging
Solving method: Wash change air filter element
Failure cause: Evaporator pipe frosta and clogs
Solving method: Solving as refrigerant low pressure becoming too low
Failure cause: Air pressure becoming too low
Solving method: Increasing system pressure
Failure cause: Air temperature becoming too high
Solving method: Decreasing inlet air temperature |
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| Q： |
Product downtime |
| A： |
Failure cause:In Refrigeration system,device for drying and filtering is clogging.
Solving method:solvingas refrigerant high pressure beuming too low. |
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| Q： |
Poor dehumidification |
| A： |
Failure cause: Auto drains clogging and damaged.
Solving method: Wash and change auto drains. |
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