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| ©2004 |
| Earthship USA, Inc. |
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| Air Cycle Refrigeration
Comparison and Principle |
| |
| Air Refrigerant |
Freon |
Ammonia |
 |
 |
 |
| Only jet and intake are
required in the warehouse |
Indoor fan coil unit is
required in the warehouse |
Secondary loop needed inside
the warehouse due to ammonia's toxicity |
|
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|
|
Air Refrigerant
|
Freon
|
Ammonia
|
|
Refrigerant
Phase Out
|
No
|
Yes
|
No
|
|
Toxicity
|
No
|
Low
|
High
|
|
Environmental
Impact
|
No
|
High
|
Low
|
|
Initial
Cost
|
Moderate
|
Moderate
|
High
|
|
Running
Cost
|
Low
|
Low
|
Low
|
|
Safety
Compliance
|
No Regulations
|
Gov. Regulated
|
Gov. Regulated
|
|
Coolant
Disclosure
|
Not Applicable
|
Required
|
Required
|
|
Defrost
|
Not Required
|
Required
|
Not Required
|
|
Maintenance
|
Low
|
High
|
High
|
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| |
| More
on Air Cycle Operation vs Others |
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