129
Table 63. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.
Parameter Short
Description
Screen 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
1- Compressor 1 duty
cycle. (Compressor
crankcase heater
function.)
On when outdoor air
temperature is less than or
equal to parameter 189 and
greater than or equal to
parameter 192 seconds
have passed with
compressor 1 off.
Off when Outdoor Air
temperature is greater than
parameter 189 plus 3°F
(fixed dead-band) or is less
than parameter 192 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 Set Point
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