Lochinvar Power-Fin 502 Installation & Operation Manual page 61

8
Operating information
By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the nine (9)
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
#7
Press the Next  arrow key on the SMART SYSTEM display to access Screen #8.
#8
Press the Next  arrow key on the SMART SYSTEM display to access Screen #9.
#9
Press the Next  arrow key on the SMART SYSTEM display to access Screen #10.
(continued)
Status Display Screens
Display shows:
The control has not received a call for heat from a SH remote
SH CFH: OFF
thermostat.
ON The control has received a call for heat from a SH remote thermostat.
The control has not received a call for heat from a tank sensor or tank
DHW CFH: OFF
thermostat.
The control has received a call for heat from a tank sensor or tank
ON
thermostat.
The control has not received a DHW call for heat and has not powered
DHW PUMP: OFF
the DHW pump.
The control has received a DHW call for heat and has powered the
ON
DHW pump.
The DHW call for heat has been satisfied and the DHW pump is
Delay
running for a fixed time to remove any residual heat.
The control will display a 0-10 VDC signal received from a Building
0-10V IN: **.VDC
Management System (BMS) connected to the unit.
The control has not received a call for heat from a remote thermostat
SYS PUMP: OFF
and has not powered the system pump.
The control has received a call for heat from a remote thermostat and
ON
has powered the system pump.
The system call for heat has been satisfied and the system pump is
Delay
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 remote thermostat is not connected and the water temperature has
ON
dropped below the temperature set point of the control to initiate a
call for heat.
The call for heat has been satisfied and the boiler pump is running for
Delay
a fixed time to remove any residual heat.
Installation & Operation Manual
(cont'd)
Description
61