| 7.8102.4a
Hazardous material removal | Health concerns in the removal and replacement of equipment (e.g., asbestos, other hazardous materials) will be identified Written notification will be provided to occupants of the discovery of hazardous material, including contact information for regional
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
asbestos coordinator Occupant 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 (occupant is responsible for abatement or remediation) | Remediate health hazards using
EPA
EPA
U.S. Environmental Protection Agency, www.epa.gov
-certified contractors |
| 7.8102.4b
Decommissioning | Accepted industry procedures and practices will be followed to: - Remove old water heater and associated components
- Seal any unused chimney openings
- Remove unused oil tank, lines, valves, and associated equipment
| Ensure worker and occupant safety Preserve integrity of the building Remove old equipment in a timely and efficient manner |
| 7.8102.4c
New equipment installation | New water heater and associated components will be installed in accordance with local codes, accepted industry standards and practices, and manufacturer specifications The system will be installed to be freeze resistant Any existing water leaks will be repaired before installation begins Any penetrations to the exterior of the home created by the installation of the equipment will be sealed Where earthquake loads are applicable, supports shall be designed and installed for seismic forces In instances where conflicts occur between the code and the manufacturer's installation instructions, the more restrictive provisions shall apply | Ensure worker and occupant safety Preserve integrity of the building Remove old equipment in a timely and efficient manner |
| 7.8102.4d
Emergency drain pan | An emergency drain pan with a minimum depth of 1 1/2" and sufficient size and shape to receive all dripping or condensate if leakage would cause damage to the space should be installed. A 3/4" drain line or larger will be connected to tapping on pan and run to an indirect drain or pumped to daylight | Collect and safely dispose of water escaping from the storage tank |
| 7.8102.4e
Expansion tank | A stainless steel bladder expansion tank will be installed on the cold water side Expansion tank shall be installed in accordance with the manufacturer's installation instructions A direct connection with no valves between the storage tank and expansion tank will be installed | Protect the storage tank from expansion |
| 7.8102.4f
Temperature and pressure relief valve | Correct temperature and pressure relief valve will be installed in accordance with manufacturer specifications Temperature and pressure relief valve discharge tube will terminate within 6" of the floor, or as prescribed by local code | Discharge excessive energy (pressure or temperature) from storage tank to safe location |
| 7.8102.4g
Dielectric unions (dielectric insulator) | Dielectric unions (dielectric insulator) will be installed in accordance with manufacturer specifications | Break the stray voltage electrical circuit through the storage tank |
| 7.8102.4h
Backflow prevention | 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 water supply from contamination |
| 7.8102.4i
Thermal efficiency and insulation | If additional tank insulation is installed, it will be rated a minimum of R-11 and installed to manufacturer specifications If additional insulation is installed, it will be installed based on fuel type, making sure not to obstruct draft diverter, pressure relief valve, thermostats,
hi-limit switch
Hi-limit switch
A protective electronic switch that keeps a burner from continuing to operate and damage the appliance
, plumbing pipes or elements, and thermostat access plates The first 6' of inlet and outlet piping will be insulated in accordance with manufacturer specifications Pipe insulation must remain 3" from gas water heater vent Heat traps will be installed on the inlet and outlet piping where not provided by manufacturer | Reduce
standby loss
Standby loss
Heat loss through the outer part of a water heater. Energy that is used even when a device is turned off
from near tank piping and storage tank Ensure insulation does not make contact with flue gas venting |
| 7.8102.4j
Required combustion air | 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 |
| 7.8102.4k
Venting of flue gases | 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 |
| 7.8102.4l
Combustion testing | 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 the appropriate combustion efficiency, diagnostics and adjustments will be done in accordance with manufacturer specifications and local codes | Confirm that combustion is occurring safely with appropriate combustion efficiency |
| 7.8102.4m
Fuel supply | Electric, natural gas, and oil supply components will be installed to accepted industry standards and codes in accordance with NFPA70 (
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 |
| 7.8102.4n
Discharge water temperature | Discharge water temperature at fixtures will not exceed 120 °F or as prescribed by local code Install mixing valve when higher storage/generation temperatures are required | Ensure safe hot water supply temperature to fixtures |
| 7.8102.4o
Commissioning of system | The following will be checked once the system has been filled and purged: - Safety controls
- Combustion safety and efficiency
- Operational controls
- Fuel and water leaks
- Local code requirements
Commissioning will be in accordance with manufacturer specifications and relevant industry standards | Ensure system functions safely Keep cost of ownership as low as possible |
| 7.8102.4p
Occupant health and safety | All spaces with combustion appliances will have a carbon monoxide (
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 occupant health and safety |
| 7.8102.4q
Occupant education | Completed work will be reviewed 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 |
