Our Services Include:

  • Air and Water Balancing
  • Ultrasonic Flow Measurement Readings
  • Sound and Vibration Testing
  • Indoor Air Quality Testing
  • Building Systems Commissioning
  • Smoke Evacuation System Testing
  • Pre Demo Readings
  • Acceptance Testing
  • Fume Hood Testing
  • Coil Load Performance Testing
  • Duct Air Leakage Testing
  • Existing Building Surveys
  • Mechanical Inspections with Report and Recommendations
  • Temperature Trending
  • Digital Photos and or Video Reports of Fog Machine Air Flow Visualization
  • Air Exchange Rates / Pressure Relationship Certification
  • Stair Pressurization Testing

Air system testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2005 NEBB Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems.

Instrumentation

All air system testing and balancing shall be performed with instrumentation in compliance with guidelines identified within the NEBB procedural standards. Selection of specific instrumentation for each application will be made to secure maximum accuracy level of test data. Listing of specific instrumentation and calibration records shall be submitted with final test report.

Sample Test Report Format if Requested

WATER SYSTEM TEST PROCEDURES

Water system testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2005 NEBB Procedural Standards for Testing, Adjusting and Balancing of Environmental Systems.

Instrumentation

All water system testing and balancing shall be performed with instrumentation in compliance with guidelines identified within the NEBB procedural standards. Selection of specific instrumentation for each application will be made to secure maximum accuracy level of test data. Listing of specific instrumentation and calibration records shall be submitted with final test report.

Sample Test Report Format if Requested

SOUND TEST PROCEDURES

Sound testing and reporting shall be performed in accordance with instrumentation and procedures as defined within the 2006 NEBB Procedural Standards for the Measurement and Assessment of Sound & Vibration.

Instrumentation

All sound tests will be performed with a CESVA Model Precision Sound Level Meter and Octave Ban Analyzer. This instrument conforms to ANS1 S1.4 Type 1 and 1EC 179 and is ideal for ASHA compliance measurements. We carry a CESVA CB-5 Calibrator with the instrument at all times and meter calibration is verified before performing sound level testing.

Timing

Sound level measurements will be performed when the space is relatively quiet with a minimum of activity and background noise.

Specific Test Procedures

The microphone will be positioned no closer than three feet from any floor, wall or ceiling, or no closer than six feet from any terminal or room unit.

Sound pressure levels will be tested as prescribed in project specifications.

Reports

The following data shall be included on final report:

  1. Measurements at the specified frequencies with the tested equipment turned on.
  2. Measurements at the specified frequencies with the tested equipment turned off.
  3. Corrective calculation, if required, between equipment noise and ambient noise levels.
  4. The "Equipment Components" of the room sound level.
  5. Graphical representation of equipment component, if required.
  6. Identification of test location.

BUILDING SYSTEMS COMMISSIONING

All procedures and reporting shall be performed in accordance with procedures as defined within the NEBB 2009 Procedural Standards for Building Systems Commissioning of Environmental Systems, and Project Specifications.

Sample Test Report Format if Requested

TESTING AND BALANCING

Instrumentation

The following is a listing of proposed instrumentation used for data acquisition. Sample formats and test instrumentation submitted shall comply with data acquisition and reporting requirements set forth within the current NEBB PROCEDURAL STANDARDS FOR THE TESTING ADJUSTING AND BALANCING OF ENVIRONMENTAL SYSTEMS. Calibration histories of actual instrumentation used will be provided with final test report. Instruments utilized comply with identified range and accuracy requirements.

The following instrumentation key is provided for reference:

Key Instrument Type Range
1
Direct CFM Reading Hood Digital 25-2500 CFM
2
Direct CFM Reading Hood Analog 0-2500 CFM
3
Rotating Vane Anemometer 30-5000 FPM
4
Air Data Multimeter 25-10,000 FT./MIN
5
Hydrodata Multimeter -10" HG - 300 PSI
6
Digital Photo-Tachometer .5-20000 RPM
7
Stroboscope 0-4000 RPM
8
Inclined Manometer 0-10" w.g.
9
Magnehelic Gages 0-10" w.g.
10
Micro-Manometer 0-2.0" w.g.
11
TRMS Volt-Ohm-Ammeter 0-600 Volts / 0-300 Amps
12
Immersion Thermometers -40-220 degrees Fahrenheit
13
Pitot Tubes Not applicable
14
Thermal-Anemometer 20-2000 FPM
15
Contact Thermometers -328-2500 degrees Fahrenheit
16
Pressure Gages -30"-0-200 PSIG
17
Psychrometer 10% - 100% RH
18
Differential Pressure Gages 0-100" w.g.
19
CESVA SC-310 Sound Meter up to 140 dB Peak
20
CESVA CB-5 Calibrator Not Applicable
21
Vibration Meter Not Applicable
22
U-Tube Manometer 0-20" w.g.
23
Orifice Tubes 3-600 CFM
24
Smoke Generator Not Applicable
25
DALT 5" Leak Test Rig Not Applicable

Test Reports
NEBB Pre-TAB Checklist

 


Main Office
Comfort Control, Inc.
6711 Distribution Drive
Beltsville, Maryland 20705

Phone: 301-931-9300
Fax: 301-931-0369
Raleigh Branch Office
Comfort Control, Inc.
228 Page Road Ste. 101
Durham, North Carolina 27703


Phone: 919-381-5065
Fax: 919-381-5095
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