AMETEK PLA-PLW - Manual (Page 46)

REAR PANEL INLET AND OUTPUT PIPE INSTALLATION (PLW ONLY)
Refer to attached drawing of Rear Panel diagram for the position of the cooling water inlet and outlet pipe
as well as the drain faucet and pressure release faucet. Before filling the Load Bank with water, carefully
read the following paragraphs for correct flow rate, water flow direction, and water pressure.
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Ensure the correct water flow direction and flow rate is set. Improper settings will extensively affect the
power module heat dissipation capability. At all time, do not exceed the inlet water flow pressure limits and
water pipe pressure specifications in order to prevent leakage or water pipe rupture.
Refer to the specification for proper water flow rate and pressure limit for inlet
water.
INLET WATER
Refer to attached drawing of Rear Panel diagram for the position of the inlet water pipe (3/4" NPT) located
in the bottom left center of the cabinet. Properly tighten the pipe with the correct wrench and do not over
tighten the pipe causing damage to the threads.
Note: 150 micron filtration is recommended.
OUTLET WATER
Refer to attached drawing of Rear Panel diagram for the position of the outlet water pipe (3/4" NPT)
located in the upper right corner of the cabinet. Properly tighten the pipe with the correct wrench and do not
over tighten the pipe causing damage to the threads.
WATER PRESSURE
Before applying water to the Load Bank, separately turn-off the drain faucet (clockwise direction) and
pressure relief faucet (clockwise direction). Gradually let the water flow and check for any leaks in the
pipe and lines. If any leaks are found, relieve the pressure and tighten the pipe connector immediately with
the proper tool.
Note: The load must have water flow in order to work properly and the water pressure must be less than
80 PSI.
PLW SERIES RECOMMENDED WATER PIPING INSTALLATION
INLET
WATER
OUTLET
WATER
FIGURE 2.2 PIPING AND COOLANT INSTALLATION
WARNING
PLW Series
Flow Meter Water Switch – B
Water Switch – A Pressure Meter 150 micron filter
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