List the stages of system cleanup
What will be an ideal response?
The stages in cleaning up a system are
1. recovering the contaminated refrigerant
2. changing the contaminated compressor oil
3. flushing the lines and coils
4. performing any system modifications or repairs
5. installing liquid line and suction line driers
6. evacuating and charging the system
7. operating the system and checking performance data
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NEC 690.14 (C-2) requires that each disconnecting means in a photovoltaic system shall be permanently marked to identify it as a ____.
a. photovoltaic disconnect b. photovoltaic ground fault c. photovoltaic circuit d. photovoltaic circuit breaker
How do we figure ROI?
What will be an ideal response?
Exposed metal parts of RV site electrical equipment is required to be grounded by:
a. A properly sized equipment grounding conductor. b. A properly sized grounded (neutral) conductor. 1. (a) only 2. (b) only 3. Both (a) and (b) 4. Neither (a) nor (b)
Modern production methods lessen the impact of pesticides on ground and surface water as well as other aspects of the environment
Indicate whether the statement is true or false