SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/epa-circulate-water-prevent-freezing

During refrigerant evacuation of a chiller, why does EPA say to circulate or remove the water?

To prevent freezing inside the chiller tubes.

Start playing free

  1. To speed up the vacuum pump
  2. To cool the oil
  3. To prevent the water from freezing ✔

Why: EPA's Type III topics say to circulate or remove the water from the chiller during refrigerant evacuation. The reason is to prevent freezing.

Huh, didn't know that: Type III topics also cover the high-pressure cut-out level of recovery devices used on low-pressure appliances.

The dad joke
I was upset when my freezer stopped working... But it's all just water under the fridge now.
Like this card?
Play the game

References

Answer: To prevent the water from freezing. EPA's Type III topics say to circulate or remove the water from the chiller during refrigerant evacuation. The reason is to prevent freezing.

  1. EPA Section 608 Technician Certification Test Topics www.epa.gov/section608/test-topics
    Need to circulate or remove water from chiller during refrigerant evacuation to prevent freezing
    Checked 2026-10-10.
  2. EPA Section 608 Technician Certification Test Topics www.epa.gov/section608/test-topics
    High-pressure cut-out level of recovery devices used with low-pressure appliances
    Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

Trades & ShopA tech has recovered refrigerant into a cylinder. Knowingly releasing it afterward is what?Trades & ShopWhich term means removing refrigerant from a system and storing it in an outside container, with no testing or processing?Trades & ShopWhen recovering refrigerant, what does EPA's Core outline say technicians need to avoid?

That's stuff everyone should know.