| 5.3102.28a
Assessment | Inspections will be made based on
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
Standard 180 Standard Practice for Inspection and Maintenance of Commercial Building
HVAC
HVAC
Heating, ventilation, and air conditioning
Systems for commercial applications and
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
4 Maintenance of Residential
HVAC
HVAC
Heating, ventilation, and air conditioning
Systems for residential applications Examples of items to be addressed are as follows: - A review of site conditions and verification of efficiency performance condition of burner shall be evaluated
- Safety issues will be addressed
| Determine if boiler replacement is needed Confirm feasibility of the scope of work Improve safety and efficiency |
| 5.3102.28b
Service, upgrade, or replace burner | Inspections will be made based on
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
Standard 180 Standard Practice for Inspection and Maintenance of Commercial Building
HVAC
HVAC
Heating, ventilation, and air conditioning
Systems for commercial applications and
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
4 Maintenance of Residential
HVAC
HVAC
Heating, ventilation, and air conditioning
Systems for residential applications Examples of items to be addressed are as follows: - Combustion air intake dampers
- Fuel/air modulating
- Electronic ignition
- Linkage-less fuel/air control
- Oxygen trim
- Variable frequency drives
- Low nitrogen oxide (replacement burner)
- High turndown ratio burner
If not present or in scope of work, above upgrades will be considered Short cycling will be eliminated | Improve safety and efficiency Identify opportunities for upgrades |
| 5.3102.28c
Combustion efficiency | Undiluted flue gases will be checked with a calibrated flue gas analyzer in accordance with accepted protocol If combustion is not occurring safely or with maximum efficiency, diagnostics and adjustments will be done in accordance with work order specifications Fuel/air ratio will be adjusted to meet specified performance over a range of firing rates, when applicable | Confirm that combustion occurs safely with maximum efficiency |
| 5.3102.28d
Modulation | Contractor will demonstrate the burner modulates over the specified operating range (steam pressure and water temperature) and firing rates Combustion efficiency will match work order specifications over specified firing rates or turndown ratios | Engage and optimize modulation |
| 5.3102.28e
Education | Building operations staff will be educated on burner capabilities and ongoing maintenance | Maintain optimal performance |
| 5.3102.28f
Startup | Startup will be performed by "qualified person," as defined in
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
31, 3.3.50 | Ensure proper installation and setup |
| 5.3102.28g
Fuel | Where applicable, dual fuel systems will be recommended when replacing oil-fired burners Dual fuel switch control operation will be confirmed | Ensure fuel flexibility |
