| 5.3003.20a
Polarity | Polarity of the equipment will be correct | Ensure equipment operates as designed Ensure equipment operates safely |
| 5.3003.20b
Voltage: incoming power | Voltage will be in accordance with manufacturer specifications | Ensure equipment operates as designed |
| 5.3003.20c
Wire size | Wire size should be appropriate for the equipment installed | Ensure equipment operates as designed Ensure equipment operates safely |
| 5.3003.20d
Service disconnect | The proper service disconnect will be installed, and if fused, the correct fuses will be installed | Ensure equipment operates safely |
| 5.3003.20e
Voltage: contactor | Voltage drop will be within acceptable range in accordance with manufacturer specifications | Ensure contactor does not overheat Ensure equipment operates as designed |
| 5.3003.20f
Grounding | Adequate grounding will be present | Ensure equipment operates as designed Ensure equipment operates safely |
| 5.3003.20g
Blower amperage | Amperage will be within original equipment manufacturer (OEM) specifications and/or code requirements | Ensure equipment operates as designed Ensure equipment operates efficiently Ensure equipment operates safely |
| 5.3003.20h
Compressor amperage | Amperage will be within OEM specifications and/or code requirements | Ensure equipment operates as designed Ensure equipment operates efficiently Ensure equipment operates safely |
| 5.3003.20i
Door switch operation | Blower compartment safety switch operation will be verified | Ensure blower does not operate during service |
| 5.3003.20j
Heat pump: emergency heat | Emergency heat circuit functions will be verified Amperage will be within OEM specifications and/or code requirements | Ensure system delivers heat in case of a compressor failure |
