Lochinvar 399 Operating information continued, Status Display Screens cont’d, Display shows

Installation & Operation Manual

11 Operating information (continued)

Status Display Screens (cont’d)

By using the Previous/Next (￿, ￿) arrow keys on the SMART SYSTEM display panel, you can navigate through the eight (8) display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display:

Screen	Display shows:	Description
	DHW PUMP: OFF	The control has not received a DHW call for heat and has not
		powered the DHW pump.
	ON	The control has received a DHW call for heat and has powered the
		DHW pump.
#7
	Delay	The DHW call for heat has been satisfied and the DHW pump is
		running for a fixed time to remove any residual heat.
	0-10V IN: **.Vdc	The control will display a 0-10Vdc signal received from a Building
		Management System (BMS) connected to the unit.

Press the Next ￿ arrow key on the SMART SYSTEM display to access Screen #8.

#8

SYS PUMP: OFF	The control has not received a call for heat from a remote thermostat
	and has not powered the system pump.
ON	The control has received a call for heat from a remote thermostat and
	has powered the system pump.
Delay	The system call for heat has been satisfied and the system pump is
	running for a fixed time to remove any residual heat.
	The control has either not received a call for heat from a remote
	thermostat, a remote thermostat is not connected to the unit and the
BLR PUMP: OFF	water temperature has not dropped below the temperature set point
	of the control to initiate a call for heat, or the control has received a
	DHW call for heat from a DHW thermostat.
	The control has received a call for heat from a remote thermostat or a
ON	remote thermostat is not connected and the water temperature has
	dropped below the temperature set point of the control to initiate a
	call for heat.
Delay	The call for heat has been satisfied and the boiler pump is running for
	a fixed time to remove any residual heat.

Press the Next ￿ arrow key on the SMART SYSTEM display to access Screen #9.

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