Q&A
Frequently Asked Questions
If you have any specific questions regarding our products or services, please read the following questions first. If you don't find your answer, contact our support unit.
Compressor FAQs
1-
Which type of compressor is suitable?
Compressors are usually selected based on consumption needs and environmental conditions.
Piston compressors are suitable for low flow rates and short pressures, while screw compressors are used for high flow rates and medium pressures.
Piston compressors are suitable for low flow rates and short pressures, while screw compressors are used for high flow rates and medium pressures.
3-
What should be the location and conditions of the compressor room?
The compressor must be placed on a flat and firm surface.
Proper distance around the compressor is required for ventilation and service.
The compressor room must have proper ventilation and sufficient distance from the wall.
Proper distance around the compressor is required for ventilation and service.
The compressor room must have proper ventilation and sufficient distance from the wall.
5-
How to choose correctly between a refrigerated or adsorption dryer?
It depends on the conditions; generally, a refrigerated dryer is used for lower humidity and an adsorption dryer for much drier conditions.
2-
Which compressor is suitable for the system?
The type of compressor is selected based on the pressure or frequency for the main power supply from the table provided on the site.
4-
What should be the type of oil used?
Special compressor oil must be used according to the manufacturer's instructions.
6-
What are the consequences of moisture in the compressed air circuit?
- Dryer is necessary
- Lack of moisture removal reduces the quality of the air.
- Moisture standards must be observed.
- Failure of internal components of the compressed air circuit.
- Lack of moisture removal reduces the quality of the air.
- Moisture standards must be observed.
- Failure of internal components of the compressed air circuit.
7-
What is the replacement time for filters and lubricants?
Act according to the type of filter and the manufacturer's suggestion. For screw compressors, the initial replacement is usually done in the first 500 hours and then every 2000 hours.
8-
How should the compressor and lubricant log table be?
This table must always be completed at the same time as periodic services.
- Service satisfaction
- Responsible technician
- The name of the replaced part, hours of use, and service date must be recorded accurately.
- Service satisfaction
- Responsible technician
- The name of the replaced part, hours of use, and service date must be recorded accurately.
Dryer FAQs
1. What is the capacity of refrigerated dryers?
There is no limit, but they are generally designed from 900 to 10,000 liters per minute.
2. How does a refrigerated dryer work?
Refrigerated dryers follow the cycle of refrigeration systems.
3. Where is the refrigerated dryer located?
According to the layout map on the site, it is placed after the air tank and the initial microfilter.
4. What are the components of a refrigerated dryer?
It consists of four main parts: compressor, condenser, expansion valve, and evaporator.
5. What is the brand of the dryer valves?
The brand used is mainly Danfoss, but other major brands like Blue-Castel are also used.
6. What is the power consumption of the dryer?
Single-phase power is used up to 15 m³/min, and three-phase above that.
7. What type of heat exchanger is used?
Plate heat exchangers are used in the dryers.
8. How much moisture is separated in the dryer?
According to Ashrae and ISO8573.1 standards.
9. What type of gas is used in the dryer?
Usually R134a for small capacities and R407c, R22, or R404 for high capacities.
10. Which parts are not covered by the warranty?
All parts used in dryers built by Hava Abzar Tabriz have a company warranty.
11. What features should the dryer location have?
The location must be dust-free, above zero temperature, and away from direct sunlight.
12. What are the consumable parts in the dryer?
There are usually no consumable parts. With proper maintenance, parts can be used for years.
13. How often should the dryer be serviced?
Service is mostly about maintenance; cleaning the condenser coil, checking the drain valve, etc.
14. What type of compressor is in the dryer?
It is a piston or scroll compressor.
15. Why install a dryer after the compressor?
To prevent moisture from entering the system and damaging the compressed air path and valves.
16. How to choose the best size for a refrigerated dryer?
Use the correction factor table on the site or contact the company for guidance.
17. What are the types of dryers?
Dryers are divided into two main categories: refrigerated and adsorption.
18. When is an adsorption dryer suitable?
In places where the dew point reaches below zero.
19. What are the components of an adsorption dryer?
Control valves, drain valves, control panel, desiccant towers, regeneration valve, check valves.
20. How to choose an adsorption dryer correctly?
Ambient temperature, inlet air temperature, and working pressure are the most important parameters.
21. What are the types of desiccant materials?
Usually Active Aluminum, Silica Gel, and Molecular Sieve.
22. What are the maintenance conditions for adsorption dryers?
Valves must be checked regularly. Desiccant quality should be checked every six months.
23. What are the types of adsorption dryers?
They are either heated or heatless types.
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