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24
System Monitor:
11ROTINOMMETSYS
M
ASTER PBSSSBSSSAAA
S
creen number
This screen is only a display.
Total # of stages available is set on screen 24.
P= SYSTEM PUMP MODULE
Rule: Always on before boiler. Always off after last boiler off + programmed delay, or
outdoor sensor reading is above cut off temperature setting. P is relay #1 as supplied.
B= INDICATES BOILER - 1st Stage
Rule: Always B before S
S= INDICATES BOILER STAGE - 2nd Stage and Subsequent Stages
Rule: Must have "B" for that boiler ON and prior stages ON for that boiler.
A= AUXILIARY RELAY MODULE
Optional: A1 - User-defined function. (e.g. powered louvers, boiler pump, draft fan)
A2 - User-defined function. (e.g. alarm light)
A3 - User-defined function. (e.g. alarm bell)
Table J: Definitions
OU TDOOR WATER TAR 12
XXX.X XXX.X XXX.X
Screen number
Current outdoor air
temperature
Displays 000.0
if no sensor is
present
Current System
Water Temperature
Target temperature
System design temperature
If system has reached "Outdoor
Cut-off" temp [TAR=OFF]
System Pump: "NO SCREEN"
The System Pump Relay works in conjunction with the "OUTDOOR CUT-OFF TEMPERATURE".
System Temperatures:
Staging control is set on screen 20.