GENERAL INFORMATION
Page 6
Surface Mounted Thermostats
Manual
ECO (high limit)
Reset button
Temperature
control Dial
Surface Mount
Combination Thermos tat/
ECO (high limit)
89T Series
Surface mounted thermostats are mounted into a bracket above each heating element . The bracket holds the
thermostat against the side of the tank responding to tank surface temperatu rest o sense a call for heat, set point
temperature and high limit (ECO) activation. As each element has a dedicated thermos tat (for all models excluding
600V), it is possible to sequence t he elements by varying the settings on t he thermostats.
The thermostat will complete control circuit
voltage upon a call for heat. Likewise, the control
will interrupt control circuit voltage when the water
temperature is sufficient to s atisfy the adjustable
temperature limit of control.
Immersion Style Thermostat Control for
Contactor Models
Direct
Immersion
bulb
The high limit (ECO) control will inter rupt control circuit voltage
causing the heater to shut down when the high temperature limit of
the control is reached (196°F±4°F). Once the cause for over
heated water has been determined, The control must be manually
reset to restore normal operation.
Immersion Style High Limit (ECO) Control for
Contactor Models
Direct
Immersion
bulb
Manual Reset
Buttons
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