7.8103.2 On-Demand Appliance

Topic: 
Water Heating
Subtopic: 
Maintenance/Inspection
Desired Outcome: 
Safe, reliable, and efficient operation of the appliance maintained
Note: 
The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detail.
TitleSpecification(s)Objective(s)
7.8103.2a
Health and safety

Combustion safety testing will be performed in accordance with the Health and Safety Chapter of the Standard Work Specifications for Single Family Housing or other equivalent practice

Electrical components will be verified to comply with NEC NEC National Electrical Code (e.g., no electrical box connector, no disconnect, improperly sized breaker and wire)

Identify potential health and safety issues

7.8103.2b
Visual inspection

Inspection will be conducted to show compliance with the IRC IRC International Residential Code , including but not limited to:

  • Water or fuel leaks
  • Damaged or missing pipe insulation and tank insulation, where applicable
  • Damaged wiring
  • Venting issues with draft and condensation (e.g., soot, rusting of flue pipe, burned paint or wires, efflorescence Efflorescence Deposits of crystals or salts left attached to masonry materials after moisture has evaporated off of the surface )
  • Corrosion (e.g., rust, mineral deposits)
  • General condition of components

Determine needed repairs or maintenance

7.8103.2c
Temperature and pressure relief valve

Correct temperature and pressure relief valve will be installed in compliance with IRC IRC International Residential Code and according to manufacturer specifications

Temperature and pressure relief valve discharge tube will be installed in accordance with IRC IRC International Residential Code

Discharge excessive energy (pressure or temperature) from storage tank to safe location

7.8103.2d
Flue gas testing

Undiluted flue gases will be checked with a calibrated combustion analyzer in accordance with BPI BPI Building Performance Institute, www.bpi.org -1100-T

If combustion is not in compliance with BPI BPI Building Performance Institute, www.bpi.org -1100-T, diagnostics and adjustments will be done to manufacturer specifications or local codes

Perform combustion testing

7.8103.2e
Required combustion air

If sealed combustion has not been installed:

Combustion and ventilation (excess air) requirements of gas-fired appliances, including provision of outside and inside air to account for building tightness, will be provided

The minimum required volume will be 50 cubic feet per 1,000 Btu BTU British thermal unit /h in accordance with IRC IRC International Residential Code

If needed, additional combustion air will be provided in accordance with IRC IRC International Residential Code

Ensure adequate combustion air for operation of the appliance

7.8103.2f
Venting of flue gases

Condition of venting will be inspected in accordance with Section 504 IFGC IFGC International Fuel Gas Code for gas water heaters or NFPA NFPA National Fire Protection Association, www.nfpa.org 31 for oil water heaters

Verify proper venting of flue gases

7.8103.2g
Fuel supply

Condition of fuel supply components will be checked in accordance with NFPA NFPA National Fire Protection Association, www.nfpa.org 31 for oil, NFPA NFPA National Fire Protection Association, www.nfpa.org 54 for gas, NFPA NFPA National Fire Protection Association, www.nfpa.org 58 for propane, or NFPA NFPA National Fire Protection Association, www.nfpa.org 70 National Electric Code for electric, and authority having jurisdiction

Verify sufficient fuel to the water heater burner and element

7.8103.2h
Cold water supply

Water supplied to the appliance will be of sufficient volume and pressure to be in accordance with manufacturer specifications

Verify sufficient volume and pressure of water to the appliance

7.8103.2i
Discharge temperature

Discharge temperature will be set not to exceed 120°F or in accordance with local code, whichever is lower

Ensure safe hot water supply temperature to fixtures

7.8103.2j
Test the system safety and operation

The following will be tested:

  • Safety controls (e.g., water, air pressure switches)
  • Combustion safety and efficiency
  • Operational controls
  • Fuel and water leaks
  • Unit runs through complete cycle
  • Local code requirements

Manufacturer specifications and all relevant industry standards will be met

Ensure system functions safely with lowest possible cost of ownership

7.8103.2k
Maintenance records

Occupants will be advised to keep records of all maintenance done to their system

Copies of or access to installation and operation manuals will be provided

Improve chance of successful future maintenance or repair

7.8103.2l
Occupant health and safety

All homes will have a carbon monoxide ( CO CO Carbon monoxide ) alarm

Ensure occupant health and safety

7.8103.2m
Occupant education

Completed work will be reviewed

Occupants will be educated on the safe and efficient operation and maintenance of the system, including:

  • Adjustment of water temperature
  • Target temperature in accordance with local code

Ensure occupant is informed of the safe, efficient operation and maintenance of the system

TitleSpecification(s)Objective(s)
7.8103.2a
Health and safety

Combustion safety testing will be performed in accordance with the Health and Safety Chapter of the Standard Work Specifications for Single-Family Housing or other equivalent practice

Electrical components will be verified to comply with NFPA NFPA National Fire Protection Association, www.nfpa.org 70 National Electric Code (e.g., no electrical box connector, no disconnect, improperly sized breaker and wire)

Identify potential health and safety issues

7.8103.2b
Visual inspection

Inspection will be conducted to show compliance with the IRC IRC International Residential Code , including but not limited to:

  • Water or fuel leaks
  • Damaged or missing pipe insulation and tank insulation, where applicable
  • Damaged wiring
  • Venting issues with draft and condensation (e.g., soot, rusting of flue pipe, burned paint or wires, efflorescence Efflorescence Deposits of crystals or salts left attached to masonry materials after moisture has evaporated off of the surface )
  • Corrosion (e.g., rust, mineral deposits)
  • General condition of components

Determine needed repairs or maintenance

7.8103.2c
Temperature and pressure relief valve

Correct temperature and pressure relief valve will be installed in compliance with IRC IRC International Residential Code and according to manufacturer specifications

Temperature and pressure relief valve discharge tube will be installed in accordance with IRC IRC International Residential Code

Discharge excessive energy (pressure or temperature) from storage tank to safe location

7.8103.2d
Flue gas testing

Undiluted flue gases will be checked with a calibrated combustion analyzer in accordance with BPI BPI Building Performance Institute, www.bpi.org -1100-T

If combustion is not in compliance with BPI BPI Building Performance Institute, www.bpi.org -1100-T, diagnostics and adjustments will be done to manufacturer specifications or local codes

Perform combustion testing

7.8103.2e
Required combustion air

If sealed combustion has not been installed:

  • Combustion and ventilation (excess air) requirements of gas-fired appliances, including provision of outside and inside air to account for building tightness, will be provided
  • The minimum required volume will be 50 cubic feet per 1,000 Btu BTU British thermal unit /h in accordance with 2012 IRC IRC International Residential Code G2407.5.1
  • If needed, additional combustion air will be provided in accordance with IRC IRC International Residential Code

Ensure adequate combustion air for operation of the appliance

7.8103.2f
Venting of flue gases

Condition of venting will be inspected in accordance with Section 504 IFGC IFGC International Fuel Gas Code , NFPA NFPA National Fire Protection Association, www.nfpa.org 54, or NFPA NFPA National Fire Protection Association, www.nfpa.org 58 for gas water heaters or NFPA NFPA National Fire Protection Association, www.nfpa.org 31 for oil water heaters, and authority having local jurisdiction

Verify proper venting of flue gases

7.8103.2g
Fuel supply

Condition of fuel supply components will be checked in accordance with NFPA NFPA National Fire Protection Association, www.nfpa.org 31 for oil, NFPA NFPA National Fire Protection Association, www.nfpa.org 54 for gas, NFPA NFPA National Fire Protection Association, www.nfpa.org 58 for propane, or NFPA NFPA National Fire Protection Association, www.nfpa.org 70 National Electric Code for electric, and authority having jurisdiction

Verify sufficient fuel to the water heater burner and element

7.8103.2h
Cold water supply

Water supplied to the appliance will be of sufficient volume and pressure to be in accordance with manufacturer specifications

Verify sufficient volume and pressure of water to the appliance

7.8103.2i
Discharge temperature

Discharge temperature will be set not to exceed 120°F or in accordance with local code, whichever is lower

Ensure safe hot water supply temperature to fixtures

7.8103.2j
Test the system safety and operation

The following will be tested:

  • Safety controls (e.g., water, air pressure switches)
  • Combustion safety and efficiency
  • Operational controls
  • Fuel and water leaks
  • Unit runs through complete cycle
  • Local code requirements

Manufacturer specifications and all relevant industry standards will be met

Ensure system functions safely with lowest possible cost of ownership

7.8103.2k
Maintenance records

Occupants will be advised to keep records of all maintenance done to their system

Copies of or access to installation and operation manuals will be provided

Improve chance of successful future maintenance or repair

7.8103.2l
Occupant health and safety

All homes will have a carbon monoxide ( CO CO Carbon monoxide ) alarm

Ensure occupant health and safety

7.8103.2m
Occupant education

Completed work will be reviewed

Occupants will be educated on the safe and efficient operation and maintenance of the system, including:

  • Adjustment of water temperature
  • Target temperature in accordance with local code

Ensure occupant is informed of the safe, efficient operation and maintenance of the system