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ANSI Z 21.40.4/Z 21.40.4a:1998 (R2017)
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ANSI Z 21.40.4/Z 21.40.4a:1998 (R2017)
Performance Testing and Rating of Gas-fired Air Conditioning and Heat Pump AppliancesMore info
Details methods of testing and rating gas-fired air-conditioning and heat pump appliances which utilize natural, manufactured and mixed gases, liquefied petroleum gases, and LP gas-air mixtures. This includes engine-driven heat pumps, absorption-cycle heat pumps, desiccant-type heat pumps, and other gas-fired heat pumps. The heat pumps may provide the functions of year-round space conditioning either by direct heating and cooling of air or indirectly by production of heated and chilled water.
| Author | ANSI |
|---|---|
| Editor | ANSI |
| Document type | Standard |
| Format | File |
| Confirmation date | 2017-01-17 |
| ICS | 23.120 : Ventilators. Fans. Air-conditioners
27.010 : Energy and heat transfer engineering in general 27.080 : Heat pumps |
| Replace | ANSI Z 21.40.4 (1996) |
| Cross references | CSA ANSI Z21.40.4-1996/CGA 2.94-M96 (1997-04-30), IDT |
| Year | 1990 |
| Document history | ANSI Z 21.40.4/Z 21.40.4a (1998) |
| Country | USA |
| Keyword | ANSI Z 21;ANSI Z 21.40.4;ANSI 21;21;ANSI Z 21.40.4 and Z 21.40.4a;ANSI Z 21.40.4-1996 and Z 21.40.4a;ANSI Z 21.40.4a;ANSI Z21.40.4-1996 (R2017) and Z21.40.4a-1998 (R2017) |