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- HVAC
- _ Online HVAC Course
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- __Refrigeration cycle
- __Unit
- __Thermodynamic Process
- __Ventilation
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- __VRV/VRF
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- __Heat load calculation
- Basic Refrigeration & Air conditioning
- __Basics
- Material description
- __Copper tube
- __Ducting
- Interview qs & ans
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1 Comments
Due to low refrigerant
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