| 5.3102.1a
Assessment | Confirmation of the scope of work will be made for the following: - Clearances
- Proper drainage in boiler room
- Flue/chimney conditions
- Electrical capacity
- Oil/gas availability
- Piping connections
| Verify scope of work |
| 5.3102.1b
Boiler sizing calculation | Heat load calculations will be confirmed based on
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
Manual J (for residential applications), Manual N, or
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
equivalent (for commercial applications) and
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
Standard 183 (for high rise application) Sizing will be confirmed for combined space heating and domestic hot water plant | Enable proper sizing of the heating appliance |
| 5.3102.1c
Low mass selection | Low mass (water volume and heat exchanger) boilers will be selected whenever possible A primary/secondary piping configuration will be utilized when low mass systems are selected A low loss header will be utilized for primary/secondary piping configurations | Ensure longer life and improved durability of equipment Maximize efficiency of system Reduce short cycling of boiler |
| 5.3102.1d
Multiple boilers/sequencing | Boiler control package will be used for outdoor water reset, lead-lag, and sequencing capabilities An authorized boiler manufacturer technician will be responsible to set up and demonstrate/ensure optimal sequencing and lead-lag operation | Ensure highest efficiency and performance of the systems Reduce short cycling of boiler |
| 5.3102.1e
Fuel switching | Chimney will be assessed for proper sizing, lining, and draft | Ensure equipment and system components are compatible with new fuel |
| 5.3102.1f
Hazardous material removal | Health concerns in the removal and replacement of equipment will be identified Written notification of hazardous material will be provided to the property manager/occupant Contact information for the regional
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
asbestos coordinator will be provided Asbestos abatement will be conducted by an
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified contractor before decommissioning and replacement Property manager/occupant will be asked to contract with an
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified asbestos contractor to conduct asbestos removal | Remediate health hazards using
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified contractors |
| 5.3102.1g
Decommissioning | Accepted industry procedures and practices will be followed to: - Remove old boiler and associated components
- Seal any unused chimneys
- Remove unused oil tank, piping, valves, and associated equipment
| Ensure worker and occupant safety Provide timely and efficient removal of old equipment |
| 5.3102.1h
New equipment installation | New boiler and associated components will be installed in compliance with
ANSI
ANSI
American National Standards Institute, www.ansi.org
/
ACCA
ACCA
Air Conditioning Contractors of America, www.acca.org
Standard 5 acceptable procedures and local mechanical codes Concrete pads will be in accordance with the Uniform Mechanical Code and local building codes All required operating and safety controls and boiler trim will be installed and set up in accordance with local code and manufacturer's requirements Water meter will be installed on the makeup water/incoming line to the boiler Isolation valves will be installed to allow for pressure testing of the boiler Hydrostatic testing (for site-built boilers) will be performed to confirm there are no water leaks in boiler | Ensure worker and occupant safety Ensure optimal operation of equipment Ensure site-built boiler does not leak |
| 5.3102.1i
Flushing of system | Flush valve will be installed at the lowest point With the boiler isolated and the feed and flush valves open, keep feeding water to the system until drain water runs clear | Protect new and remaining equipment Conform to performance efficiency |
| 5.3102.1j
Startup/skimming of boiler | When applicable, new boiler will be flushed and skimmed before hot water is released to the building for the first time in accordance with manufacturer specifications Startup will be performed in accordance with manufacturer specifications Combustion efficiency and safety testing will be performed at multiple firing rates: at two firing rates for "low- high-low" burners, and minimum three firing rates for fully modulating burners Post-installation test report will include: - Outdoor temperature
- Draft
- Carbon monoxide (ambient and in flue gases)
- Oxygen (in flue gases)
- Flue temp
- PH level of boiler water
- Smoke spot reading
- For condensing boilers, include corresponding return water temp
| Remove impurities Ensure longevity of equipment Ensure occupant safety Conform to performance efficiency |
| 5.3102.1k
Location of circulator | Circulator will be installed in very close proximity of the expansion tank such that it is pumping away from the expansion tank | Reduce maintenance Improve the efficiency of the system |
| 5.3102.1l
Air separator | Air eliminator, microbubble or standard type, will be installed in accordance with manufacturer specifications Insulate air and dirt separator | Reduce maintenance Improve the efficiency of the system |
| 5.3102.1m
Bladder expansion tank | Bladder expansion tanks will be installed in accordance with manufacturer's installation instructions When replacing a non-bladder type expansion tank with another non-bladder type, no air elimination equipment will be installed that releases air into atmosphere; only an air elimination device that releases air into the tank will be installed Makeup water feed will be installed to the expansion tank connection The expansion tank shall be pre-charged, at minimum, to building static pressure before it is connected to the system | Reduce maintenance Improve the efficiency of the system |
| 5.3102.1n
Education | Completed work will be reviewed with the building/property management team and operations staff Copies of manuals for boiler and all other installed system components will be given to maintenance staff Building/property management team and operations staff will be educated on the safe and efficient operation and maintenance requirements of the installed item | Ensure building/property management team and operations staff is informed of the safe, efficient operation and maintenance requirements of the installed item |
