3DJH31-5000750 Rev. 1Component TestingVerifying High Pressure Switch and Low Pressure Protection Operation2SHUDWLRQ7KHXQLW¶VSUHVVXUHVZLWFKHV +366DQG/366 DUHZLUHGLQWRWKHWKHFRQWURO+36DQG/36WHUPLQDOVUHVSHFWLYHO\Low Suction Pressure Protection – 6HH)LJXUHIRUORZVXFWLRQSUHVVXUHSURWHFWLRQVHTXHQFHRIRSHUDWLRQHigh Pressure Switch (HI-PS)±6HH)LJXUHIRUKLJKSUHVVXUHVZLWFKVHTXHQFHRIRSHUDWLRQ3UHVVXUH6ZLWFK(YHQW6HWWLQJV7KHIROORZLQJSUHVVXUHVDUHWKHDXWRUHVHWHYHQWYDOXHWULJJHUVIRUORZDQGKLJKSUHVVXUHWKUHVKROGV• +LJK3UHVVXUH DXWRUHVHW WULSDWSVLJUHVHWDW• /RZ3UHVVXUH DXWRUHVHW ±WULSDWSVLJUHVHWDWCheckout – S4 High Pressure Switch8VLQJDPXOWLPHWHUVHWWRRKPVZLWKWKHWHUPLQDOVGLVFRQQHFWHGIURPWKHFRQWUROERDUGFKHFNWKHUHVLVWDQFHEHWZHHQWKHWZRWHUPLQDOVRIWKHSUHVVXUHVZLWFK,IWKHUHVLVWDQFHUHDGLQJLVRKPVWKHVZLWFKLVFORVHGS4HIGHPRESSURESWITCHS87LOWPRESSURESWITCHFigure 29. Verifying High and Low Pressure Switch OperationVerifying Suction Pressure Transducer Operation8VLQJDPXOWLPHWHUVHWWR9'&ZLWKWKH6XFWLRQ3UHVVXUH7UDQVGXFHUFRQQHFWHGWRWKH6XFW3SLQFRQQHFWRURQWKHFRQWUROERDUG3LQ 5HGZLUH9'& WR3LQ %ODFNZLUH*1' VKRXOGUHDG9'&FRQWLQXRXV3LQ %OXHZLUHRXWSXWIURPWUDQVGXFHU WR3LQ %ODFN*1' VKRXOGUHDGWR9'&DQGZLOOYDU\GHSHQGLQJRQVXFWLRQSUHVVXUHPHDVXUHG6HH7DEOHVDCFigure 30. Suction Pressure Transducer Voltage