IOMM AGZ-5 AGZ 026B through 130B 21
The evaporator heater cable is factory wired to the 115-volt circuit in the control box.
This power should be supplied from a separate source, but it can be supplied from the
control circuit. Operation of the heater cable is automatic through the ambient sensing
thermostat that energizes the evaporator heater cable for protection against freeze-up.
Unless the evaporator is drained in the winter, the disconnect switch to the evaporator
heater must not be open.
Evaporator Flow and Pressure Drop
Evaporator flow rate must fall between the minimum and maximum values shown in
the evaporator pressure drop table on the following page.
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