8.2.1 Hydraulic connection and pipes. The installation must not be connected until all the welding and soldering work and the necessary flushing and, if necessary, disinfecting of the pipe system and the booster installation has been done. The customer's pipes must be installed free from stresses. The adjustment is done with a very small Allen wrench — 050" to be exact. The factory preset is normally 80 psi for the pump and 40 psi for the pressure switch. These settings will run home RO units perfectly and allow a smooth shutoff of the pump when a good, strong tank pressure is reached. There is great wisdom in leaving the settings alone. The pressure tank in your well system creates water pressure by using compressed air. Because of this pressure, when a valve or faucet is opened in your home the water is pushed out of the tank through the pipes in your home. When the water in the pressure tank drops below a preset level, a pressure switch is activated which turns on the pump. A water booster pump works similarly to a fan. It has an impeller inside that boosts water flow and pressure in the same way as a fan's blades rotate around to enhance air velocity. A booster pump's goal is to increase the fluid's pressure while also increasing the flow rate in some situations. This pump is designed to operate with an Subject: Brake Booster Pump Motor Runs at All Times Even After Ignition Turned Off - DTC C0021 Set This bulletin replaces PIT5719. Please discard PIT5719. The technician may find DTC C0021 (Brake Booster Performance) set in EBCM. Cause The brake pressure switch may stick open. Page 2 September, 2020 Bulletin No.: 20-NA-182 Correction 4961493 gFmdBz.

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