$18,000 - $20,000. More than $20,000. The total amount spent per pupil by district in the 2011-12 school year by elementary and K-12 districts. The darker the color, the higher the spending.
b) Set a voltmeter to the 300 volts scale. Place test probes on terminals 1L and 3L (see diagram) of the high limit portion of the thermostat. The meter reading should be the input voltage of the heater (see rating plate of the water heater). If not correct voltage, check for loose connections and blown fuse or tripped circuit breaker. c) To verify that the high limit switch is closed, place test probes onto terminals 2L and 4L (see diagram).
Wire sized to supply voltage at 240-volt levels will be roughly half the size it needs to be to safely carry the amount of electrical current required at 120 volts. We see this major flaw on brand-new boats, so beware. Exposure to salt water is a major cause for corrosion at buss bars and electrical termination points.