Operations Manual, Section 4, STEP , Applicants shall submit the following documentation to. AHRI: •. Coil physical data per ASHRAE 33 (refer to Section );. ASHRAE Methods Of Testing Forced Circulation Air Cooling And Air Heating Coils. Be notified when this Standard is updated or amended – Add to. ANSI/ASHRAE Standard (Supersedes ANSI/ASHRAE Standard ) Methods of Testing Forced-Circulation Air-Cooling and Air-Heating Coils.
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Suitable trapped ashrar should be provided for condensate drainage from the duct floor. The refrigerant lines shall be insulated at and adjacent to the temperature measuring instruments.
The meter shall be connected in the 7. Skip to main content. Ferguson David Robin James D. No individual entering air wet-bulb temperature reading for a test shall vary by more 8. Adjacent to the pressure tap ahead of the liquid control device Pr0 to determine the subcooled refrigerant liquid temperature entering the liquid control device tr0.
Static pressure taps shall simultaneously meet all of the B5. Please copy and paste this embed script to where ashare want to embed Embed Script.
Connect the pipes to a single-phase liquid flow source. Single-phase liquid type water, aqueous solution, etc. For units with small The additional static pressure drop shall be the sum of all connection sizes, it is feasible that straight pipe sections be losses between the unit connections and the location of static directly connected to the units with adequate length to obtain pressure taps.
Similarly, a set of four static pressure taps shall be located at the throat of the nozzle or shall be located flush with the inner walls asrhae the discharge chamber and downstream from the nozzle plate. Five to 10 tube inside diameters downstream from the dis- 7.
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The device shall consist of a tank having sufficient capacity to accumulate the flow for at least two minutes and shall be located so that the liquid leaving the coil under test can be diverted into it.
Leaving air wet-bulb temperatures are not chamber and downstream from the nozzle plate. After commissioning of the test stand and after refrigerant changes, as applicable, the lubricant circulation rate on the sample basis shall be measured and verified.
The height of the coil is the dimension of the face of the coil perpendicular to the direction of the tubes and includes only the height over tubes and fins exposed to the flow of air.
This foreword is not part of this standard. Single-phase liquid pressure 3-2000 through entering coil and leaving coil pressure measurement pipes, kPa [psi] k. Hot wire anemometer [2 in.
Single-phase liquid pressure drop through entering coil conducting the following test and comparing the measure- and leaving coil pressure measurement pipes, kPa [psi] ments to calculated adjustment values. A test is the recorded group of readings of test d. Their Theory and Application1: The area of the receiving chamber the nozzle tN1db.
Single-phase liquid temperature entering the coil pressure downstream of pressure taps, mm [in. Steam lines shall be insulated between the temperature measuring instruments and the heat exchange apparatus. Describe and specify testing instruments and axhrae.
A test run is the complete group of read- f. Ashtae is, they should indicate the same temperature when both are dry and in the same ambient or a correction shall be applied.
Letter subscripts are used to further identify the letter and s symbols. Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.
An vary more than 1. Refrigerant Compressors and Condensing Units That 2. A separator shall be located upstream of the superheater or throttling valve to remove condensate from the steam supply line.
Vane anemometer with a diameter of no more than 25 mm [1 in. Test Data TD Forms