Michael Raymond To: Brenda Edwards-Jones/EE/DOE@DOE cc: 04/12/2006 11:08AM Subject: Fwd: Fw: SDHV test procedure 

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### ----- User Filed as: Not Categorized in ERMS Also add this letter (attached) from Unico. Michael G. Raymond Project Manager Building Technologies Program Energy Efficiency and Renewable Energy Department of Energy, EE-2J 1000 Independence Ave., SW Washington, DC 20585-0121 phone - (202)586-9611 fax -(202) 586-4617 Forwarded by Michael Raymond/EE/DOE on 04/12/2006 11:07AM

,..- "Brian Dougherty" To: michael.raymond©ee.doe.gov

<brian.dougherty@nist.g cc: ov> Subject: Fwd: Fw: SDHV test procedure 04/12/2006 10:21 AM 0 Federal Record • Nota Federal Record

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The attachment is the main technical reference on the additional changes proposed for SDHV in the NOPR. Brian

X-Sieve: CMU Sieve 2.2 Subject: Fw: SDHV test procedure To: brian.doughertynist.gov X-Mailer: Lotus Notes Release 6.0 September 26, 2002 From: Michael McCabe <MMcCabeNavigantconsulting.com> Date: Thu, 30 Oct 2003 10:24:50 -0500 X-MIMETrack: Serialize by Router on WDC1MLSO1/NCI(Release 6.O.2CFI June 9, 2003) at 10/30/2003 10:24:53 AM X-MailScanner: Forwarded by Michael McCahe/NCI on 10/30/2003 10:23 AM

"Craig Messmer" <craigunicosystem..com>
10/28/2003 04:55 PM

To: 'Michael McCabe" <MMcCabeNavigantconsuIting.com> cc: Subject:SDHV test procedureMike,

We recently had our units tested at ETL as part of the ARI program. The lab did not use the correct airflow because they misunderstood how to test our units. They tested it at lower airflow than we rate it at. This was because they installed our restrictor plate and could not meet the minimum static pressure at our airflow. Therefore, they reduced the airflow till the requirement was met. What they should have done is raise our restrictor plate, or not install it at all. Therefore, I developed the attached test procedure addendum. I have not given it to them yet. I wanted to get your comments first so that it is aligned properly with what the DOE will publish later. Please note that this is the test procedure, not the minimum efficiency. Thanks, Craig Messmer(See attached file: Proposed addendum to ARI 210-240 to include SDHVsystems.pdf)
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### Craig Messmer Unico, Inc. 

## Addendum to ART Standard 210/240 October 27, 2003 SDHV - Small-Duct High-Velocity Test Procedure

SDHV Definition -- a heating and cooling product that contains a blower and indoor coil combination that: (1) Is designedfoi and produces, at the minimum external static pressure shown in Table 1 when operated at the cert?/ied air volume rate of 220-350 CFMper rated ton of cooling; and (2) when applied in the field, uses high velocity room outlets generally greater than 1 000 fpm which have less than 6.0 square inches offree area.



### Table 1. Minimum External Pressure Standard Capacity Ratings Minimum External Resistance (Thousands of Btuh) [kWl (Inches of Water W.C.'> [Pal 29 thru 42 [8.5 thru 12.4] 1.15 [286.1] 43 thru 70 [12.6 thru 20.5] 1.20 [298.6] 71 thru 105 [20.8 thru 30.8] 1.25 [311.0] 106 thru 134 [31.1 thru 39.3] 1.30 [323.4]

5D,D.



### ____Tesit 

# TH.

AP P 

### Table 2. Default Supply Duct Size Diameter Airflow Range (inches) [mm] (CFM) [Lis] 6 [152.4] 300-500 [141-236] 7 [177.8] 400-700 [1 89-330] 8 [203.2] 500-900 [236-425] 9 [228.6] 700-1100 [330-519] 10 [254.0] 800-1400 [378-660] 11 [279.4] 1000-1700 [472-802]

Flow Chamber

Damper to adjust air pressure in flow chamber to minimize leakage in system. P,



## NOTES 1. Unless specified by manufacturei the discharge duct size shall be based on an air velocity between 1500 and 2600 ft/mm (7.6 and 13.3 mIs) at the rated airflow. Refer to Table 2 for sizing for round duct. Rectangular or square duct of similar area can be used. 2. The test airflow shall be the rated airflow as specified by the manufacturer unless the static pressure drop across the unit (AP) is less than minimum allowable value. The test airflow shall be reduced until the minimum allowable pressure drop is achieved.3. The damper shall be adjusted to keep the chamber static pressure below 0.5 inches of water (124.4 Pa) to minimize air leakage in the test apparatus. 4. The unit shall be tested at full speed unless specified by manufacturer. 5. All balance dampers or restrictor devices on or inside the unit shall be fully opened. 6. Additional ductwork, including elbows, may be used to connect between the chamber and the exit of the 2D minimum test duct. 7. If Closed-Loop Enthalpy method is used, the maximum return side static pressure (P1) shall be 0.1 inches of water (24.9 Pa).