Type 2 Flashcards
1
Q
What is a Type 2 appliance?
A
An appliance that contains greater than 5 lbs. of refrigerant, OR is not hermetically sealed (regardless of how much refrigerant it contains) and contains medium pressure, high pressure or very high pressure refrigerant.
2
Q
What is a sight glass used for?
A
To check the charge and moisture in the system.
3
Q
What do bubble in a sight glass normally mean?
A
The system is low in refrigerant.
4
Q
What are the two types of most commonly used compressors?
A
Fully hermetic and semi-hermetic.
5
Q
What is slugging?
A
When a compressor tries to compress liquid refrigerant.
6
Q
What can be done during recovery to speed the process?
A
Activate the crankcase heater.
7
Q
What is the purpose of a filter drier?
A
To trap acid, particulate and moisture.
