office of manufactured housing installation training testing(2_5 hours).pdf · phoenix, az...
TRANSCRIPT
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UTILITY TESTING
Arizona Department of Fire, Building
and Life Safety
Office of Manufactured Housing
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Title 24 CFR parts • 3280 – Manufactured Home Construction and Safety Act • 3285 - Model Manufactured Home Installation Standards • 3286 – Manufactured Home Installation Program
Water system
• 3285.603(e)(1) • 3280.612(a)
HUD Standards
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Drainage system • 3285.604(d) • 3280.612(b)(1)(2)(3), (c),(d)
Fuel supply system
• 3285.605(c) • 3280.705(k)(8)
Electric • 3285.702(f)(1) • 3280.810(b)(1),(2),(3)
Smoke alarms • 3285.703 • 3280.208(f)
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Gas system test • High pressure test • Low pressure test
Water and sewer system test • Fixture operational test • Water system test • Drain, waste and vent test (dwv)
Electrical test • Continuity test • Electrical fixture operational test • Polarity test • Smoke alarm operational test
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3280.612(a)
• All water piping in the water distribution system shall be subjected to a pressure test
• Test shall be made by subjecting the system to air or water at 100 psi for 15 minutes without loss of pressure
• For air pressure test, by-pass the water heater to avoid damage
• Be sure to shut off the supply at the meter or at the tie in, to avoid pumping air back into the system
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100 lb air test for 15 minutes
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Bypass W/H on 100 lb air test
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Plug all fixture drains
• Sinks, lavatories, tubs and commode tanks and bowl
Fill fixtures with water
• Sinks, lavatories & tubs – 3 inches
• Shower pans – 2 inches
• Commode tank – operational level
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Fill sinks with minimum 3” of water for fixture test
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Empty each fixture
• When two fixtures are on the same trap, drain simultaneously
• Verify that all the connections are not leaking or draining slow
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Plug system to prevent water from draining to septic or sewer
• Use appropriate plug at a clean out where installer ties into existing septic or sewer
• You may want to insert the plug prior to draining the fixtures to conserve water.
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Test ball inserted into the clean out for flood level test
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Test ball or plug
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Fill with water at the washer stand pipe
• When water rises above tubs and shower pans insert drain plug to prevent overflow
• Continue filling system until level rises to commode rim
• Verify that all trapped air is released from the system
• Let stand for 15 minutes
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Fill with water to rim of bowl for flood level test
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Check for leaks • Check complete system for leaks
• Check underbelly for hidden leaks
Drain system • Remove sewer line plug and check sewer or septic
connection tie in
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High pressure test. • Before appliances are connected, piping systems shall stand a
pressure of at least six inches mercury or three psi gauge for a period of not less than 15 minutes without showing any drop in pressure.
• Pressure shall be measured with a mercury manometer or slope gauge calibrated so as to be read in increments of not greater than one-tenth pound, or an equivalent device.
• The source of normal operating pressure shall be isolated before the pressure tests are made.
• Before a test is begun, the temperature of the ambient air and of the piping shall be approximately the same, and constant air temperature be maintained throughout the test.
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3 lb high pressure gas test
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1/10th lb gauge minimum 3 lb’s for 10 minutes
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Reconnect the appliances
• After appliances are connected, the piping system shall be pressurized to not less than 10 inches or more than 14 inches water column
• Or use an ounce gauge and pressurize at 6 to 8oz
• The appliance connections should be tested for leakage with soapy water or bubble solution
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Low pressure test gauge between 6 to 8 oz
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Bubble solution for leak testing
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Checking for leaks on flex line
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Operational test
• Make sure all light switches are in the off position
• Use a receptacle tester at each receptacle to ensure the polarity is correct and that the receptacle is grounded
• Check both outlets in each receptacle to ensure the tab has not been removed
• On GFCI receptacles, push the test button on the tester to ensure the interrupter trips the switch
• Test switched receptacles with the switch in the on and off position
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Operational test on receptacle
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240v receptacles
• Use a voltage tester to verify that the “hot” side of each 240v outlet measures a nominal 120v of the correct polarity
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Receptacle tester GFCI type outlets
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240 Volt operational test for dryer
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Testing light fixtures
• Test for polarity and grounding
• You can use a voltage tester or you can use the receptacle tester along with a adaptor
• When using the adaptor you must also have a ground wire attached to the receptacle tester
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Light Fixture Test with Adaptor
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Testing with AC power on
• Remove all batteries from smoke detectors
• Push the “PUSH TO TEST” button on the alarm and hold until the alarm sounds
• Once the alarm begins to sound release the button and confirm that each alarm in the home is sounding to ensure interconnection of the alarms
• Repeat this procedure on each alarm throughout home
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Testing a smoke detector
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Testing with AC power off
• Replace the batteries in the smoke detectors
• Make sure the power is off
• Push the “PUSH TO TEST” button on the smoke detector to ensure the detectors alarm sounds
• Repeat on all detectors in home
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Questions?
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35
1110 West Washington, Suite 100
Phoenix, AZ 85007-2935
Phone (602) 364-1003
FAX (602) 364-1063
www.dfbls.az.gov
Department of Fire, Building
and Life Safety Office of Manufactured Housing