Active Chilled Beams (ACB)
Resources
Program-specific Forms
- Form ACB-DS1 — Optional BMG Subdivision
- Form ACB-FA1 — Application for Facility Approval
- Form ACB-FA2 — Personnel Experience Questionnaire
- Form ACB-FA3 — Facility and Equipment Questionnaire
- Form ACB-PC1 — Witness Test Procedure and Checklist
- Form ACB-PC2 — Facility Approval Procedure and Checklist
Operations Manuals
Related Standard(s) and Documents
- AHRI 1240 (I-P/2017): Performance Rating of Active Chilled Beams
- AHRI 1241 (SI/2017): Performance Rating of Active Chilled Beams
Additional Resources
Program Scope
The certification program includes air induction and diffusion devices introducing conditioned air for temperature and/or humidity control. Primary air is delivered through a series of nozzles, which induce and condition secondary air through a unit-mounted coil.; Last line of certified ratings should be capitalized - Induced Air Flow Rate; review header sizing
Certified Ratings
- Water Flow Rate, L/s [gpm], adjusted to achieve mean water temperature differential of 8.0°C [14.4 °F] relative to reference air temperature
- Water Pressure Drop, kPa [inches w.c.];
- Water Coil Capacity, W, [Btu/h];
- Primary Air Flow Rate, L/s [cfm];
- Sound Power Level by octave bands 2 to 7 (free discharge combined with casing radiated), dB; and
- Induced air flow rate, L/s [cfm], calculated in accordance with ASHRAE 200.