Ohio Administrative Code › Title 4781 - Ohio Manufactured Homes Program › Chapter 4781-6 - Installation Standards › Section 4781-6-03.6 - Ductwork and plumbing and fuel supply systems

Current through all regulations passed and filed through July 1, 2024
(A) Field assembly.
Home manufacturers shall provide specific installation
				instructions for the proper field assembly of manufacturer-supplied and shipped
				loose ducts, plumbing, and fuel supply system parts that are necessary to join
				all sections of the home and shall be designed to be located underneath the
				home. The installation instructions shall be designed in accordance with
				applicable requirements of the MHCSS. Where manufacturer's installation instructions
				are not available or do not address an element of the installation, the Ohio
				plumbing code, the Ohio mechanical code, and this rule shall
				govern.
(B) Utility
			 connections.
Refer to rule 4781-6-  03.9 of the Administrative
				Code.
(C) Water supply.
(1) Crossover. Multi-section homes with
			 plumbing in both sections require water-line crossover connections to join all
			 sections of the home.
(2) Maximum
			 supply pressure and reduction. When the local water supply pressure exceeds
			 eighty pounds per square inch to the manufactured home, a pressure-reducing
			 valve shall be installed.
(3)
			 Mandatory shutoff valve.
(a) An identified and
			 accessible shutoff valve shall be installed between the water supply and the
			 inlet.
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(b)
			 The water riser for the shut-off valve connection shall be located underneath
			 or adjacent to the manufactured home with the shut-off valve accessible within
			 three feet of the point where the water supply enters the perimeter of the
			 manufactured home or emerges from underground.
(c) The shutoff valve shall be a full-flow
			 gate or ball valve, or equivalent valve.
(4) Freezing protection. Water line
			 crossovers completed during installation shall be protected from freezing.
(a) If subject to freezing temperatures, the
			 water connection shall be wrapped with insulation or otherwise protected to
			 prevent freezing.
(b) In areas
			 subject to freezing or subfreezing temperatures, exposed sections of water
			 supply piping, shutoff valves, pressure reducers, and pipes in water heater
			 compartments shall be insulated or otherwise protected from freezing.
(c) Use of pipe - heating cable. Only pipe - heating cable listed for the intended use shall be
			 permitted to be used. It shall be fused or used with a fused plug and shall be
			 installed in accordance with the cable manufacturer's installation instructions.
(5) Testing procedures.
(a) The water system shall be inspected and
			 tested for leaks after completion at the site in accordance with the
			 manufacturer's installation instructions. Where no manufacturer's installation
			 manual test procedure is available, the test shall be performed in accordance
			 with testing procedures provided on forms approved by the
			 division.
(b) The water heater shall be disconnected
			 when using an air-only test to prevent damage to the water heater for pressures
			 above eighty psi.