ASHRAE STD 25

Methods of Testing Forced-Circulation Free-Delivery Unit Coolers for Refrigeration

active, Most Current
Buy Now
Organization: ASHRAE
Publication Date: 17 December 2018
Status: active
Page Count: 28
scope:

This standard applies to factory-made, forced-circulation free-delivery unit coolers operating with a volatile refrigerant fed by either direct expansion or liquid overfeed at wet and/or dry conditions. This standard does not include the following:

a. Air conditioning units used primarily for comfort cooling for which testing methods are given in other standards

b. Unit coolers operating at latent load conditions with a refrigerant saturation temperature of less than 32°F (0.0°C)

c. Unit coolers installed in or connected to ductwork or with external air resistance devices not provided by the manufacturer

d. Unit coolers using zeotropic refrigerants with glides greater than 12.6°F (7.0°C)

e. Field testing of unit coolers

PURPOSE

This standard establishes uniform methods of testing for obtaining performance data, lists and defines the terms used in testing, specifies data to be recorded and formulas to be used in calculations, and sets limits and tolerances in testing.

Document History

ASHRAE STD 25
December 17, 2018
Methods of Testing Forced-Circulation Free-Delivery Unit Coolers for Refrigeration
This standard applies to factory-made, forced-circulation free-delivery unit coolers operating with a volatile refrigerant fed by either direct expansion or liquid overfeed at wet and/or dry...
June 28, 2001
Methods of Testing Forced Convection and Natural Convection Air Coolers for Refrigeration
This standard prescribes methods of testing the cooling capacities and airflow rates of forced convection and natural convection air coolers for refrigeration. It does not include air coolers of the...
June 23, 2001
Methods of Testing Forced Convection and Natural Convection Air Coolers for Refrigeration
This standard prescribes methods of testing the cooling capacities and airflow rates of forced convection and natural convection air coolers for refrigeration. It does not include air coolers of the...
June 23, 2001
Methods of Testing Forced Convection and Natural Convection Air Coolers for Refrigeration
This standard prescribes methods of testing the cooling capacities and airflow rates of forced convection and natural convection air coolers for refrigeration. It does not include air coolers of the...
January 1, 1990
Methods of Testing Forced Convection and Natural Convection Air Coolers for Refrigeration
A description is not available for this item.

References

Advertisement