Lochinvar Shield SNR200-100 Installation And Service Manual page 41

8
Field wiring
Figure 8-4 Control Inputs/Outputs
BLOCKED AIR INLET PRESSURE SWITCH
CONTROL BOARD
(continued)
TANK SENSOR
LOW WATER CUTOFF
INLET TEMPERATURE
SENSOR
OUTLET TEMPERATURE /
HIGH LIMIT SENSOR
FLUE GAS SENSOR
FLAME SENSOR
BLOCKED DRAIN SWITCH
DISPLAY PANEL
LOW VOLTAGE
CONNECTION
BOARD
Installation & Service Manual
TM
LOW VOLTAGE
CONNECTION
BOARD
CONTROL BOARD
ALARM BELL (ALARM CONTACTS)
RUNTIME CONTACTS
WHR PUMP
IGNITER
BLOWER
GAS VALVE
DISPLAY PANEL
INPUTS
OUTPUTS
41