A/C Important stuff

Question 1

If the capillary tube on a thermostatic switch is broken or leaks, how will this affect the compressor?

Answer 1

The compressor will never come on and the complaint will be no A/C.

Question 2

How many terminals does a binary switch have and what does it sense?

Answer 2

• 2 terminals

- senses both high and low systems pressures on the high side

Question 3

How many terminals does a trinary switch have and where is it located?

Answer 3

• 4 terminals
• the switch is installed between the condenser and the expansion device ( txv or orfice tube), usually located on the receiver/dryer
  403b module pg. 12

Question 4

You must recover refrigerant into a ____ approved container that cannot be flled more than ___% of its capacity.

Answer 4

CTC (canadian transport commission)

80%

Question 5

What type of fittings are used on barrier type A/C hose that require a special bubble style cimping tool and dies?

Answer 5

Bead lock fittings

Question 6

The A/C system, when operated in the summer, may cause the engine coolant to gel and even freeze solid if the freezing point of the engine coolant is not kept above -20F ( -29C)
T/F

Answer 6

true