Lochinvar WH 55 - 399 manual Information

User’s Information Manual

4 SMART SYSTEM control module

Status Display Screens (cont’d)

Section	Display	Description
	SYSTEM:	The temperature read by the system supply sensor (if connected).
	TANK:	The temperature read by the tank sensor (if connected).
	OUTDOOR:	The temperature read by the outdoor sensor (if connected).
	INLET TEMP:	The temperature read at the inlet to the heat exchanger.
	OUTLET TEMP:	The temperature read at the outlet of the heat exchanger.
	DELTA T:	The temperature difference between the inlet and the outlet of the
		heat exchanger.
	FLUE TEMP:	The temperature read by the flue sensor.
	FLAME CURRENT:	The current measured by the flame sense circuit.
	FAN SPEED:	The speed of the combustion blower.
C
	BOILER PUMP:	The status of the boiler pump output.
(Operational
	SYSTEM PUMP:	The status of the system pump output.
Information)
	DHW PUMP:	The status of the DHW pump output.
	BMS VOLTAGE:	The voltage received from a BMS system.
	BLR PUMP OUTPUT:	The speed signal sent to a variable speed boiler pump in percent.
	SYS PUMP INPUT:	The speed signal received from a variable speed system pump control.
	RATE OUTPUT:	A 0 - 10V signal indicating the firing rate of the boiler.
	SH RUN HOURS:	The total hours of operation in the Space Heating Mode.
	SH CYCLES:	The total burner cycles in the Space Heating Mode.
	DHW RUN HOURS:	The total hours of operation in the DHW Mode.
	DHW CYCLES:	The total burner cycles in the DHW Mode.
	LAST 10 FAULTS NO:*	The last 10 lockouts.
	MENU	Press and hold the LEFT SELECT key for 5 seconds to enter the Menu
		Screen.
	EXIT	Press the LEFT SELECT key to exit the current screen or setting.
D
	YES	Press the LEFT SELECT key to confirm that the boiler needs to
(LEFT SELECT		shutdown.
key function)	LIMITS	Press the LEFT SELECT key to enter the screen that allows you to
		adjust the limit settings.
	HOME	Press the LEFT SELECT key to return to the Status Screen and upload
		parameter changes.

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