Section 1362 - Installation Test(a) The potable water distribution system of the MH-unit and the supply connection shall show no evidence of leakage under normal operating pressures. If water at normal operating pressure is not available, the water distribution system shall be tested by a fifty (50) psi air pressure test for a period of not less than fifteen (15) minutes without leaking.(b) The MH-unit drainage piping system shall be connected to the lot drain inlet, and tested by allowing water to flow into all fixtures, and receptors, including the clothes washer standpipe, for a period of three (3) minutes. If water under pressure is not available, the drainage piping system shall be tested by letting at least three (3) gallons of water into each fixture and receptor. There shall be no visible evidence of leaks.(c) The MH-unit fuel gas piping system shall be tested before it is connected to the lot gas outlet. The gas piping system shall be subjected to a pressure test with all appliance shut-off valves, except those ahead of fuel gas cooking appliances, in the open position. Appliance shut-off valves ahead of fuel gas cooking appliances may be closed.(1) The test shall consist of air pressure at not less than ten (10) inches nor more than a maximum of fourteen (14) inches water column. (Six (6) ounces to a maximum eight (8) ounces). The system shall be isolated from the air pressure source and maintain this pressure for not less than two (2) minutes without perceptible leakage. Upon satisfactory completion of the test, if the appliance valves ahead of fuel gas cooking appliances have been shut off, they shall be opened and the gas cooking appliance connectors tested with soapy water or bubble solution while under the pressure remaining in the piping system. Solutions used for testing for leakage shall not contain corrosive chemicals. Pressures shall be measured with either a manometer, slope gauge, or gauge calibrated in either water inches or psi with increments of either one-tenth ( 1/10) inch or one-tenth ( 1/10) ounce, as applicable. NOTE: The fuel-gas piping system shall not be over-pressurized. Pressurization beyond the maximum specified may result in damage to valves, regulators, appliances, etc.
(2) Gas appliance vents shall be inspected to insure that they have not been dislodged in transit and are securely connected to the appliance.(d) The electrical wiring and power supply feeder assembly of the MH-unit shall be tested for continuity and grounding. The electrical wiring system shall not be energized during the test. An MH-unit equipped with a power supply cord shall not be connected to the lot service equipment. An MH-unit equipped with a feeder assembly shall have the flexible metal conduit of the feeder assembly connected to the lot service equipment; however, the supply conductors, including the neutral conductor, shall not be connected. (1) The continuity test shall be made with all interior branch circuit switches or circuit breakers and all switches controlling individual outlets, fixtures and appliances in the "on" position. The test shall be made by connecting one lead of the test instrument to the MH-unit grounding conductor at the point of supply to the feeder assembly, and applying the other lead to each of the supply conductors, including the neutral conductor. There shall be no evidence of any connection between any of the supply conductors and the grounding conductor. In addition, all noncurrent-carrying metal parts of electrical equipment, including fixtures and appliances, shall be tested to determine continuity between such equipment and the equipment grounding conductor.(2) Upon completion of the continuity test, the power supply cord or feeder assembly shall be connected at the lot service equipment. A further continuity test shall then be made between the grounding electrode and the chassis of the MH-unit.(3) If the final electrical connection has been approved by the enforcement agency and electrical energy is available at the lot equipment, a polarity test shall be conducted with the MH-unit energized.(e) When an MH-unit consists of two (2) or more sections, all utility connections from one section to another shall be visually inspected and included in the tests.(f) Upon approval of the installation and satisfactory completion of the gas and electrical tests, the lot equipment shall be approved for service connection.(g) When installed, fire sprinkler systems shall be hydrostatically tested in accordance with Title 25, Chapter 3, Section 4320 reprinted below:(a) A fire sprinkler system installed during the manufacture of the manufactured home or multi-unit manufactured housing with two dwelling units must be hydrostatically tested both at the manufacturing facility and at the home's installation site. (1) The hydrostatic test performed at the manufacturing facility:A. must be conducted on the completely assembled system within any one transportable section; andB. must subject the system to 100 pounds per square inch (psi) hydrostatic pressure for not less than 2 hours without any loss of pressure or leakage of water. Testing shall be performed in accordance with the applicable product standards.(2) The person responsible for installing the manufactured home or multi-unit manufactured housing with two dwelling units must hydrostatically test the system again at the home's installation site with the water supply available at the site for at least one hour without any evidence of leakage.A. The testing must be performed at a minimum of 50 psi; not to exceed 100 psi.B. A representative of the enforcement agency must witness the test at the installation site during the same visit to the installation site to inspect the installation of the home or dwelling unit.(b) A fire sprinkler system installed after the manufactured home or multi-unit manufactured housing with two dwelling units is shipped from the manufacturing facility must be hydrostatically tested at the home's installation site. (1) The person who installed the fire sprinkler system is responsible for performing the test.(2) A representative of the enforcement agency must witness the test.(3) The installer must conduct the test on the completely assembled system.(4) The installer must conduct the test with the water supply available at the home's site for a period of two hours without any evidence of leakage. The testing must be performed at a minimum of 50 psi; not to exceed 100 psi.Cal. Code Regs. Tit. 25, § 1362
1. Amendment of subsections (b) and (c) filed 8-22-85; effective upon filing pursuant to Government Code Section 11346.2(d) (Register 85, No. 36).
2. Amendment of section heading and section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28). Note: Authority cited: Sections 18300 and 18613, Health and Safety Code. Reference: Section 18613, Health and Safety Code.
1. Amendment of subsections (b) and (c) filed 8-22-85; effective upon filing pursuant to Government Code Section 11346.2(d) (Register 85, No. 36).
2. Amendment of section heading and section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).