Quincy Compressor QGS 90, Инструкция

Страница: 85 / 134

7.6 Safety valves
Location of safety valve
Operating
Operate the safety valve by unscrewing the cap one or two turns and retighten it.
Testing
Before removing the valve, depressurise the compressor.
See section Problem solving.
Valve (SV) can be tested on a separate air line. If the valve does not open at the set pressure
stamped on the valve, it needs to be replaced.
Warning
No adjustments are allowed. Never run the compressor without safety valve.
7.7 Dryer maintenance instructions
Safety precautions
Refrigeration dryers of ID type contain refrigerant HFC.
When handling refrigerant, all applicable safety precautions must be observed. Please be
specifically aware of the following points:
• Contact of refrigerant with the skin will cause freezing. Special gloves must be worn. If
contacted with the skin, the skin should be rinsed with water. On no account may clothing be
removed.
• Fluid refrigerant will also cause freezing of the eyes; always wear safety glasses.
• Refrigerant is harmful. Do not inhale refrigerant vapours. Check that the working area is
adequately ventilated.
Be aware that certain components such as the refrigerant compressor and the discharge pipe
can become quite hot (up to 110 °C - 230 °F). Therefore, wait until the dryer has cooled down
before removing the panels.
Before starting any maintenance or repair work, switch off the voltage and close the air inlet and
outlet valves.
Instruction book
2920 7101 24 83