7.8102.5a
Health concerns in the removal and replacement of equipment (e.g., asbestos, other hazardous materials) will be identified
Upon the discovery of hazardous material, written notification and contact information for regional
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
asbestos coordinator will be provided to appropriate people (e.g., occupant/building operations staff)
Property manager will be asked to contract with an
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified asbestos contractor to conduct abatement before decommissioning and replacement (property manager is responsible for abatement or remediation)
Remediate health hazards using
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified contractors
7.8102.5b
Decommission the applicable system components by completing the following, in accordance with accepted industry procedures and practices:
Remove old water heater and associated components Seal any unused chimney openings Safely disconnect and secure any abandoned utility (fuel and electric) connections Preserve the integrity of the building and services
Remove old equipment in a timely and efficient manner
7.8102.5c
Tankless water heaters and associated components will be installed in accordance with local codes, accepted industry standards and practices, and manufacturer specifications
In instances where conflicts occur between the code and the manufacturer's installation instructions, the more restrictive provisions shall apply
Ensure the health and safety of the worker/occupant/building management/building operations staff
7.8102.5d
In instances where, due to the installation location of the tankless water heater, a leak could cause damage building components, an emergency drain pan should be installed
A 3/4" drain line or larger will be connected to tapping on pan and run emergency drain line to floor drain, pump, or building exterior
Collect and safely dispose of water escaping from the appliance
7.8102.5e
Correct temperature and pressure relief valve will be installed in accordance with manufacturer specifications
Equipment will be connected to properly sized discharge tube and run to a safe location no greater than 6" from the floor or as prescribed by local code (in the absence of local code, as prescribed by UPC)
Discharge excessive energy (pressure or temperature) from the appliance to a safe location
7.8102.5f
Dielectric unions (dielectric insulator), if needed, will be installed in accordance with manufacturer specifications
Minimize corrosion between dissimilar metals
7.8102.5g
Electrical connection to the water heating equipment should be made per manufacturer's instructions and per
NEC
NEC
National Electrical Code
(
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
70)
Break the stray voltage electrical circuit through the appliance
7.8102.5h
Backflow prevention will be installed in accordance with manufacturer specifications and all applicable codes
Backflow devices shall be tested by a certified backflow assembly tester at the time of installation, repair, or relocation, and not less than on an annual schedule or more often where required by local code
Protect the water supply from contamination
7.8102.5i
Building water pressure and volume will be verified as sufficient and will be in accordance with manufacturer specifications
A pressure regulator or booster pump will be installed as needed
Provide proper water pressure to the appliance
7.8102.5j
All piping and fittings will be insulated with fixed insulation to
IECC
IECC
International Energy Conservation Code
2012 or
ASHRAE
ASHRAE
American Society of Heating, Refrigerating and Air-Conditioning Engineers, www.ashrae.org
90.1-2010, at a minimum
Reduce line losses
7.8102.5k
Recommendations will be made to install all tankless appliances as sealed combustion
If not possible:
Combustion air shall be calculated and provided in conformance with the applicable code adopted by the jurisdiction and manufacturer's installation requirements
In instances where conflicts occur between the code and the manufacturer's installation instructions, the more restrictive provisions shall apply
In absence of a local code, combustion air shall be calculated and provided in conformance with any of the following:
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
54,
IFGC
IFGC
International Fuel Gas Code
, or
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
31
Ensure adequate combustion air for operation of the appliance
7.8102.5l
Combustion byproducts shall be removed in accordance with the applicable code adopted by the jurisdiction and manufacturer's installation requirements
In instances where conflicts occur between the code and the manufacturer's installation instructions, the more restrictive provisions shall apply
In absence of a local code, combustion byproducts shall be removed in accordance with any of the following:
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
54,
IFGC
IFGC
International Fuel Gas Code
, or
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
31
Ensure the safety and durability of the venting system
7.8102.5m
Undiluted flue gases will be checked with a calibrated flue gas analyzer in accordance with accepted protocol
If combustion is not happening safely or to maximum efficiency, diagnostics and adjustments will be done in accordance with manufacturer specifications and local codes
Confirm that combustion is occurring safely with maximum efficiency
7.8102.5n
Electric, natural gas, and oil supply components will be installed to accepted industry standards and codes in accordance with
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
70 (
NEC
NEC
National Electrical Code
) for electric,
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
54 for gas, or
NFPA
NFPA
National Fire Protection Association, www.nfpa.org
31 for oil
Energy input required by the appliance will be in accordance with manufacturer specifications (e.g., ensure gas pipe size and pressure are adequate)
Provide sufficient fuel to the water heater burner or element
7.8102.5o
Discharge water temperature will be set not to exceed 120 °F or as prescribed by local code
Install mixing valve when higher storage/generation temperatures are required
Ensure water temperature is low enough to prevent scalding
Ensure water temperature is high enough to inhibit growth of pathogens (e.g., Legionella)
7.8102.5p
The following will be checked once the system has been connected and filled:
Safety controls Combustion safety and efficiency Operational controls Fuel and water leaks Cycle unit Local code requirements Other system components (e.g., expansion tank, storage tank) Commissioning will be in accordance with manufacturer specifications and relevant industry standards
Ensure system functions safely and is designed with the lowest possible cost of ownership
7.8102.5q
CO
CO
Carbon monoxide
) All spaces with combustion appliances will have a
CO
CO
Carbon monoxide
alarm
Locations of
CO
CO
Carbon monoxide
alarms in the space shall be in accordance with state law and local codes
Ambient
CO
CO
Carbon monoxide
levels will be maintained under code-acceptable thresholds
Ensure worker, occupant, and building management staff health and safety
7.8102.5r
Completed work will be reviewed
Occupant/building operations staff/property manager will be educated on the safe and efficient operation and maintenance of the system, including:
Adjustment of water temperature Operation of backflow preventer and pressure regulator Importance of keeping operating manuals accessible Educate occupant/building operations staff/property manager about the safe, efficient operation and maintenance of the system
