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5 Commissioning, Startup, Operation, and Shutdown
Checks
Check that the piping is clean and has been flushed.
5.1.2 Final installation checks
Installation checklist
CAUTION:
Serious damage to the pump may result if it is started dry. Make sure that the pump is
completely filled with liquid before it is started.
Check
Check that the unit base is properly leveled, grouted, and secured.
Check that all lubrication points are properly lubricated.
Check that the outlet side of the high-temperature relief valve assembly (if option is
purchased) is connected to the drain with tubing or pipe sized 1/2 in. or greater.
Check that the shut-off valves to the transmitters are open.
Check that the stop cocks for the check feature on the PRV are open. They must never
be completely closed during normal operation. Throttle the cock if you note any
check slamming (constant speed stations only).
Check that the system is purged of debris and air.
Check that the pump and motor shafts are properly aligned.
Check that the pump rotation is correct.
Check that the piping is properly supported. This prevents strains on the unit.
5.1.3 Final adjustments
Make the final adjustments on these adjustable devices in order to match the exact system
requirements.
Thermal relief valve
An optional thermal relief valve is installed on the pump discharge in order to prevent
potentially dangerous thermal pressure buildup. The valve automatically opens on a
temperature increase and closes on a temperature decrease. This valve acts as a safety
device; do not remove or plug it. It is factory set to open and discharge when the water
temperature in the discharge header reaches between 125°F to 135°F (51°C to 57°C).
Make sure that the 1/2 in. NPT opening of this valve assembly is piped to a floor drain in
accordance with local codes.
After long periods of operation, the valve seat and disc can become worn or pitted. This
allows leaks through the valve in the closed position. You can replace internal parts, if
desired.
Low suction pressure switch
Adjust the setting to 10 psi below the rated suction pressure.
5.2 Pump station startup
5.2.1 Confirm the job site voltage
1. Check these items before you apply power or close the disconnect:
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TECHNOForce e-HV Mechanical Installation, Operation, and Maintenance Manual
Checked
Checked
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