What happens when a machinery room refrigerant sensor detects ...

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What happens when a machinery room refrigerant sensor detects above normal concentration levels of refrigerant?
 
  What will be an ideal response?

Question 2

How often must a recovery cylinder be retested?
 
  What will be an ideal response?

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Answer to Question 1

The refrigerant detector will activate an audible and visible alarm and mechanical ventilation within the space.

Answer to Question 2

Refillable cylinders used to recover refrigerant must be inspected and hydrostatically tested a minimum of once every five years in accordance with Title 49 CFR Section 180.205. Some cylinders also have a last permissible use date. These are commonly known as 5 + 5 cylinders. They can only be re-qualified one time. These cylinders may not be used past the last permissible use date.

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