$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).
First, the thermostat senses the presence of heat. Second, by sensing the presence of heat, the thermostat can control electrical current that is sent to another thermostat or to a heating element. A water heater may contain one or two thermostats, called upper and lower thermostats.In this configuration, each thermostat controls one heating element. A residential electric water heater may operate in a simultaneous or non-simultaneous mode. water heater may contain one or two thermostats, called upper and lower thermostats. In this configuration, each thermostat controls one heating element. A residential electric water heater may operate in a simultaneous or non-simultaneous mode.