FIG. 61 Typical Building Management System Diagram

HIGH WATER TEMPERATURE

LIMIT CONTROL

FIG. 62 High Water Temperature Control

A Manual Reset High Limit control is located on the left front side of the control panel, beside the Command Display. Additional switches, alarm indicating lights and optional low water cut-off control switches are also located on this panel. The setting of this control knob limits maximum discharge water temperature. A red reset button, located beside the knob, must be pushed whenever water temperature has exceeded the set point of manual reset limit. The temperature of the water in the heat exchanger must drop a minimum of 15°F (8.3°C) below the setting of the manual reset high limit control before the reset function can be activated.

A red indicating light is illuminated when the water temperature exceeds the setting of the high limit control. A status point alarm of Over Temp will be displayed in the Command Display when water temperature exceeds the Set Point Temperature programmed into the Excel 10 control on operation of the high water temperature limit control.

NOTE:

The high limit control will not reset until the water temperature has dropped below the set point of the high limit.

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Lochinvar 1, 000 through 2 warranty High Water Temperature Limit Control, Typical Building Management System Diagram

000, 000 through 2, 1 specifications

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