Page 110
Table 64. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.Parameter Short DescriptionScreen Name
Block 5 Miscellaneous Parameters
109 SMOKE ALARM CONTROL Smoke Alarm Control 0 0 13 Option
Smoke alarm control options.
Smoke alarm control options.
0- Unit off.
1- Blower on, exhaust fan off, outdoor air damper open (positive
pressure)
2- Blower on, exhaust fan on, outdoor air damper closed (negative
pressure).
3- Blower on, exhaust fan on, outdoor air damper open (purge).
4- Blower off, exhaust fan on, outdoor air damper closed (negative
pressure).
5- Blower on, exhaust fan on, outdoor air damper closed (negative
pressure).
6- Blower on, exhaust fan on, outdoor air damper open (purge).
7- Blower off, exhaust fan on, outdoor air damper closed (negative
pressure).
110 ERR TIME OFF DELAY Error Time Off Delay 64 300 1800 Seconds Off time delay if a “no-run" error occurs.
111 COOL STAGING OPTION Cooling Staging Option 0
Check unit parameter
label as default may
be altered at factory
test.
4 Option
Cooling staging options:
0- No cooling operation
1- Wired thermostat operation, Two cooling stages and units with
Economizers
Y1 = Free Cooling,
Y2 = Adds all mechanical stages.
2- Wired thermostat operation. Two cooling stages and Units with
Economizers
Y1=Free Cooling
Y2= adds first stage of mechanical.
3- Wired thermostat operation. Three cooling stages.
Y1 only = first stage,
Y2 only = second stage,
Y1+Y2 = third stage.
Units with Economizers Y2 only adds first stage of mech
anical, Y1+Y2 adds first and second stage of mechanical.
4- Discharge air control. Up to four stages.
112 HEAT STAGING OPTION Heating Staging Option 0 2 2 Option
Heating staging options:
0- No heating operation.
1- Discharge air control with up to four stages.
2- Thermostat operation.
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