two.3 The technique used On this normal may be the just one-pass test strategy. With this take a look at, a cleanse-up filter is mounted downstream in the test sample and it is meant to retain and stop recirculation of a lot of the contaminant particles that aren't gathered via the exam sample in the primary move.
2.1 This normal handles tests underneath constant-point out ailments for rating of oblique evaporative coolers that: (a) sensibly cool a Major airstream through warmth exchanger(s) through the evaporation of drinking water right into a secondary airstream, and
SCOPE: This normal relates to insert-on evaporative pre-cooling add-ons placed on the condenser inlet air of air-cooled unitary immediate-enlargement cooling devices with under or equal to 240 KBtuh cooling capability.
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two.one This common specifies methods, apparatus and instrumentation by which determinations of remote mechanical draft evaporative refrigerant condenser capacity determinations is often acquired by laboratory testing with precision satisfactory to be used as The premise for industrial rankings.
1. Goal: To determine minimum proposed design guidelines needed to obtain an acceptable standard of performance and basic safety for heating, air flow and air conditioning devices applied on rail passenger motor vehicles functioning during the exclusive and demanding natural environment of rail transportation units.
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This guideline relates to the applying of airflow and contaminant modeling for analyses of indoor air high-quality, thermal convenience, Power and functions related to chemical, Organic and radiological agents.
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2.four The field facts gathered and documented underneath this conventional are supposed for use by constructing designers, operators and people, and by brands and installers of HVAC systems.
Cable restraints used for HVAC & R Equipment that may be mounted on the ground or suspended within the setting up composition and for linked pipe, ductwork, electrical raceways, fireplace defense piping along with other gadgets suspended from the creating construction.
one. Intent: This standard presents take a look at approaches for determining the thermal general performance of unglazed flat-plate liquid-form photo voltaic energy collector modules (hereinafter referred to as solar collectors) which heat a liquid for low temperature apps.
The objective of this standard is to offer minimum demands with the Strength-successful structure of buildings other than very low-increase household properties, for:
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