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Table 64. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.Parameter Short DescriptionScreen Name
186 SRV OUTPT CTRL MODE Service Output Control Mode 0 0 127 Option
A55 Service Output Control Mode = X + 32*Y + 16*Z
Input source = X:
0- None. Standard Service Output based on alarms.
1- Compressor 1 duty cycle. (Compressor crankcase heater functi
On when Outdoor Air Temperature is less than or equal to P
meter 189 and greater than or equal to Parameter 192 seco
have passed with compressor 1 off.
Off when Outdoor Air temperature is greater than Parameter
plus 3°F (fixed dead-band) or is less than Parameter
seconds have passed with compressor 1 off
2- On when occupied.
3- On when blower on,
4- On when heating demand.
5- On when cooling demand.
6- On when heating or cooling demand.
7- System Relative Humidity (A55_P298_5 RH)
8- System Indoor Air Quality. (A55_P298_3 IAQ)
9- System Outdoor Air Temperature (A55_P267_1/2 OAT)
10- Energy Recovery System
11- SCR Option for Electric Heat
Algorithm Y for input sources 7-9:
0- Hysteresis loop (see sections 14.2 - 14.4)
1- Window - On when input is in range; (see sections 14.2 - 14.4)
2- Delayed-on. (see sections 14.2 - 14.4)
3- Delayed-off. (see sections 14.2 - 14.4)
Inversion Z:
0- Output not inverted.
1- Output inverted.
187 SRV OUTPT SP C02
Service Output Setpoint for
Carbon Dioxide
0 996 2000 ppm A55 service relay output set point.
188 SRV OUTPT SP RH
Service Output Set Point for
Relative Humidity
0.0 100.0 100.0 % Service Output Set Point for Relative Humidity
189 SRV OUTPT SP TEMP
Service Output Set Point
Temperature
-31.0 51.0 132.0 °F Service Output Set Point Temperature
190 SRV OUTPT DB C02
Service Output Deadband for
Carbon Dioxide
16 102 2000 ppm A55 service relay output dead-band or delay.
191 SRV OUTPT DB RH
Service Output Deadband for
Relative Humidity
2.0 13.0 100.0 % Service Output Deadband for Relative Humidity
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