| 5.3102.19a
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 |
| 5.3102.19b
Boiler size calculation | For one-pipe steam system, radiation survey will be completed, and appropriate piping and pickup factor (e.g., insulation, water volume, return line configuration) will be incorporated For two-pipe steam system: - 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
Std 183 (for high rise application)
- Radiation survey will be completed, and appropriate piping and pickup factor (e.g., insulation, water volume, return line configuration) will be incorporated
Sizing will be confirmed for combined space heating and domestic hot water plant | Enable proper sizing of the heating appliance |
| 5.3102.19c
Removal of condensate tank | The selection of the boiler will be influenced/dictated as to whether the condensate tank could be eliminated from the system Selection will be based on: - Elevation of normal operating water level
- Placement of the low water cutoffs
- Elevation of lowest horizontal steam piping
- Useable water volume of boiler
| Lower cost while optimally designing system with fewer components Ensure proper design considerations to eliminate the need for the condensate tank and associated steam traps |
| 5.3102.19d
Mass selection | Systems will be selected with higher mass heat exchangers A higher water volume boiler will be selected to ensure elimination of condensate return tanks (see also SWS 5.3102.19 Replacement of Steam Boiler) | Ensure longer life and improved durability of equipment Ensure the ability/option to remove condensate return tanks |
| 5.3102.19e
Multiple boilers/sequencing | Multiple boiler system controls will be equipped with lead-lag and sequencing capabilities Systems will be set up to demonstrate/ensure optimal sequencing, and lead-lag will be accomplished | Ensure highest efficiency and performance of the systems Ensure boilers do not short cycle |
| 5.3102.19f
Fuel switching | Chimney will be assessed for proper sizing, lining, and draft | Ensure equipment and system components are compatible with new fuel |
| 5.3102.19g
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 |
| 5.3102.19h
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 |
| 5.3102.19i
New equipment installation | New boiler and associated components will be installed to accepted industry procedures and practices; in instances where conflicts occur between the code and the manufacturer's installation instructions, the more restrictive provisions shall apply (IPC 101.3 and UPC 101.2; IPC 301.7 and IPC 101.4) 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 manufacturer and local code requirements Near boiler piping will be installed in accordance with the manufacturer's recommendation All existing and new uninsulated steam, domestic hot water, and condensate piping in the boiler room will be insulated to code minimum Water meter will be installed on the makeup water/incoming line to the boiler so that it is capable of metering all water coming into the boiler, including both automatic feed or manual feed; this water meter should not be capable of being bypassed Boiler will be installed so that it does not cause water hammer or overfilling Isolation valves will be installed to allow for pressure testing of the boiler Hydrostatic testing (for site-built boiler) will be performed to confirm there are no water leaks in the boiler | Ensure worker and occupant safety Ensure optimal operation of the equipment Ensure site-built boiler does not leak |
| 5.3102.19j
Flushing of system | Isolation valve will be installed at the lowest point and immediately upstream of the Hartford loop Flush valve will be located upstream of newly installed isolation valve With the isolation valve to boiler closed and flush valve open, system will be run until drain water runs clear | Protect new and remaining equipment Conform to performance efficiency |
| 5.3102.19k
Startup/skimming of boiler | In accordance with manufacturer specifications, the new boiler will be flushed and skimmed before steam is released to the building for the first time Proper startup will be done in accordance with manufacturer specifications Steady state combustion efficiency and safety testing will be performed at multiple firing rates; a minimum of two tests, one at high fire and one at low fire, will be performed for low-high-low burner, and a minimum of three tests (low fire, medium fire, and high fire) will be performed for fully modulating burners | Remove impurities Ensure longevity of equipment Ensure occupant safety Conform to performance efficiency |
| 5.3102.19l
Education | Completed work will be reviewed with the building/property management team and operations 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 |
