2002.0 Scope. The purpose of this part is to establish and provide minimum standards for the protection of public health, welfare, and property by regulating and controlling the design and installation of panel heating systems.
2003.0 Installation.
2003.1 Panel systems shall be designed and installed in accordance with the requirements of this code.
2003.2 Piping to be embedded in concrete shall be pressure-tested prior to pouring concrete. During pouring, the pipe shall be maintained at the proposed operating pressure.
2004.0 Piping Materials.
2004.1 Panel(s). Piping for heating panels shall be standard-weight steel pipe, Type L copper tubing, or approved plastic pipe or tubing rated at 100 psi at 180°F.
2004.2 Hot-Water Supply Lines. Piping for hot water supply lines shall be installed in accordance with the requirements of this code.
2005.0 Piping Joints. Joints of pipe or tubing forming the panel that are embedded in a portion of the building, for example, concrete or plaster, shall be in accordance with the following: 2005.1 All welding shall be performed in accordance with ASME “Boiler and Pressure Vessel Code,” Section IX “Welding and Brazing Qualifications.”
2005.2 Copper tubing joined with brazing alloys having a melting point above 1,000°F.. 2006.0 Heat Sources. Heat sources for generating hot water for use in hydronic panel radiant heating systems shall include conventional fossil fuel, hot water boilers, electrical resistance heated boilers, air/water or water/water heat pumps, or solar heat collector systems. The latter system may include booster or backup heating units. Systems shall be protected by pressure- temperature relief valves as outlined in this code.
2007.0 Testing. Approved piping or tubing installed as a portion of a radiant panel system that will be embedded in the walls, floors, or ceilings of the building it is designed to heat shall be tested for leaks by the hydrostatic test method by applying at least 100 psi water pressure or 1.5 times the operating pressure, whichever is greater. For metal piping, a pressure gauge shall be connected to the piping, and after the pressure has been raised, the hydrostatic pressure connection shall be discontinued and the systems under pressure shall remain at the test pressure for a sufficient period of time to determine whether any leaks exist in the system. Leaks shall be indicated by the pressure drop on the gauge. The minimum test period shall be thirty (30) minutes. For flexible plastic piping, the test pressure shall be applied for a period of thirty (30) minutes. During this time, the system shall be maintained at the test pressure by the periodic addition of makeup water to compensate for the initial stretching of the pipe. The system shall then be visually inspected for tightness. Tests for tightness of radiant piping systems shall be witnessed by the Authority Having Jurisdiction.
In addition a geothermal system from the loop header inside or outside the building shall comply with the following requirements: The Header and valves connected to the well or loop field are within the scope of this code.
2007.1 Flushing. All hydronic piping systems shall be thoroughly flushed before the system is commissioned.
Note: Purge block shall be located at the building entrance ( foundation wall or basement floor)
To building water source heat pumps
(Ord. 19658 §90; December 12, 2011).
24.10.455 Appendix D, Table D-1, State of Nebraska, Amended; Sizing Stormwater Drainage Systems.
Appendix D, Table D-1, State of Nebraska, of the Uniform Plumbing Code is amended to read as follows:
TABLE D-1
Maximum Rates of Rainfall for Various Cities
Storm Drainage
States and Cities 60-Minute Duration,
100-Year Return
NEBRASKA Inches/Hour GPM/Square Foot
Omaha 3.6 0.037
Lincoln 6.0 0.062
North Platte 3.5 0.036
Scottsbluff 2.8 0.029
(Ord. 19658 §91; December 12, 2011).
24.10.460 Appendix E 9 Amended; M/H Lot Drainage Inlet and Lateral. Appendix E 9 of the Uniform Plumbing Code is amended to read as follows: E 9 M/H Lot Drainage Inlet and Lateral.
(a) Size. Each lot shall be provided with a drainage inlet not less than four (4) inches in diameter.
(b) The lateral line from the inlet to the sewage drain line shall slope at least one-fourth (1/4) inch per foot All joints shall be watertight.
(c) All materials used for drainage connections between a M/H and the lot drainage inlet shall be semi-rigid, corrosion resistant, non-absorbent and durable. The inner surface shall be smooth.
(d) Provision shall be made for plugging or capping the sewage drain inlet when a M/H does not occupy the lot. Surface drainage shall be diverted away from the inlet. The rim of the inlet shall extend not more than four (4) inches above ground elevation. (Ord. 19658 §92; December 12, 2011).
24.10.465 Appendix E 11 Amended; Pipe Size.
Appendix E 11 of the Uniform Plumbing Code is amended to read as follows: E 11 Pipe Size
(a) Each M/H lot drainage inlet shall be assigned a waste loading value of twelve (12) fixture units and each park drainage system shall be sized according to Table E-1 or as provided herein. Drainage laterals shall be not less than four (4) inches in diameter.
(b) A park drainage system which exceeds the fixture unit loading of Table E-1 or in which
the grade and slope of drainage pipe does not meet the minimum specified in Table E-2 shall be designed by a registered professional engineer. (Ord. 19658 §93; December 12, 2011).
24.10.470 Appendix L 7.0 Added; Alternate Plumbing System Drawings.
The Uniform Plumbing Code is amended by adding Appendix L 7.0 to read as follows: L 7.0 Alternate Plumbing System Drawings.
The following alternate plumbing system drawings are examples under the Uniform Plumbing Code: (Drawings continued on next page). (Ord. 19658 §94; December 12, 2011).