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Old Technology
Higher Operating Costs |
New Technology
Benefit: Lower Operating Costs |
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Low SEER 5 to 12
Low HSPF 5 to 6 |
SEER 13 to 19
HSPF 6.8 to 9.5 |
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Less than Ideal Indoor Comfort |
Benefit: Better Indoor Comfort |
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Single Speed compressor
Electromechanical room thermostat Cooling mode only |
Two-speed compressors
Electronic room thermostats Cooling and dehumidification |
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Less Reliable Product |
Benefit: More Reliable Product |
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Painted steel cabinet
Aluminum coils Electromechanical control |
Powder paint coating
Copper tube coils Electronic and microprocessor controls |
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Noisy Operation |
Benefit: Quieter Operation |
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No sound shield or metal sound shield
Noisy compressors Single speed high RPM outdoor fan |
High-tech sound blankets
Improved compressors Low speed outdoor fan Vibration isolation plate |
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Difficult or Costly to Service
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Benefit: Easier and Less Expensive to Service
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Difficult to repair aluminum coils
Remove coil to access compressor Difficult to clean coils Schraeder service ports |
Easy to repair copper coils
Compressor easily accessible Easy-to-clean coils Back seating service valves |
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Harmful to the Environment |
Benefit: Good to the Environment |
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Used ozone depleting refrigerants
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Uses Puron refrigerant
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