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 Seventh Addition 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 Seventh Addition 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 1994 NEBB Procedural Standards for the Measurement and Assessment of Sound & Vibration.

Instrumentation

All sound tests will be performed with a CESVA Model SC310, it can
work as a type-1 integrating-averaging sound level meter that complies
with IEC 60651, IEC 60804 AND IEC 61672 International Standards and
their EU counterparts EN 60651 and EN 60804. The SC310 also complies
with the American standards ANSI S1.4 and ANSI S1.43. We always
carry the CESVA CB-5 calibrator or
a "GEN-RAD" Model 1982 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 "GEN-RAD" model 1562A 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 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
Deflecting Vane Anemometer 0-2500 FPM
2
Direct CFM Reading Hood 25-2500 CFI
3
Rotating Vane Anemometer 30-5000 FPM
4
Digital Photo-Tachometer .5-20000 RPM
5
Stroboscope 0-4000 RPM
6
Inclined Manometer 0-10" w.g.
7
Magnehelic Gages 0-10" w.g.
8
Micro-Manometer 0-2.0" w.g.
9
TRMS Volt-Ohm-Ammeter 0-600 Volts / 0-300 Amps
10
Immersion Thermometers -40-220 degrees Fahrenheit
11
Pitot Tubes Not applicable
12
Thermal-Anemometer 20-2000 FPM
13
Contact Thermometers -328-2500 degrees Fahrenheit
14
Pressure Gages -30"-0-200 PSIG
15
Psychrometer 10% - 100% RH
16
Differential Pressure Gages 0-100" w.g.
17
GEN-RAD Model 1982 31.5 - 16000 Hz
18
Calibrator 1562-A 125 - 2000 Hz
19
U-Tube Manometer 0-20" w.g.
20
Orifice Tubes 3-600 CFM

 


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.
6720 Fleetwood Drive
Raleigh, North Carolina 27612


Phone: 919-785-1588
Fax: 919-785-1589
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