Cleans and Checks.

Cleans and Checks

Mechanical T-Stats are inaccurate. The average error is what? - ANS-2-4 Degrees
Fahrenheit

What does the green or blue light on the heat pump T-Stat Represent? - ANS-Heat
Banks on

Name the refrigeration line that is thicker in diameter. - ANS-Suction line.

What is a satisfactory temperature drop on a heat pump system? - ANS-16-24 degrees
Fahrenheit

Name two devices that distinguish a heat pump system from an A/C. - ANS-Reversing
valve and check valves

What do you inspect for when looking at the wires of a heat pump system? - ANS-Loose
connections and damaged insulation.

What is the function of the defrost mechanism in a heat pump system? - ANS-To
remove ice from the outdoor unit.

Why are T-Stats important to be clean and level? - ANS-To ensure it is properly
calibrated.

What 4 actions occur during the defrost cycle? - ANS-T-Stat Bypassed, Reversing valve
switches, OD Fan off and Heat Elements on.

What is a typical amp draw on the heating elements of a heat pump system? - ANS-20
Amps

Name 3 types of igniters used in HVAC. - ANS-Standing pilot, spark igniter and Hot
surface igniter

Describe how a dirty blower motor effects the efficiency of a heat pump system. -
ANS-Restricts air flow.