Across
- 3. opens to allow gas to flow and ignite burner
- 5. pump used to evacuate system to 500 microns
- 8. the difference between liquid line and saturation temp of refrigerant on high side
- 9. power safety switch for outdoor unit
- 11. metering device used in R22 systems
- 13. safety device to prevent water overflow from condensate drains or drain pan
- 14. stores power to help start motors and compressors
- 15. tool used to take refrigerant pressure reading
Down
- 1. metering device with sensing bulb
- 2. responsible for drawing air through burners and out through flu pipe
- 4. component where refrigerant boils @ 40 degrees
- 6. needed for proper airflow, done on maintenance, chemicals sometimes required
- 7. testing instrument to measure "air" pressure
- 10. sends signal to system to call for cooling
- 12. carries away harmful gases to chimney