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Table 55. Service Relay Options
Control Parameter
DescriptionUnit
Control Value
No. DescriptionUnitMax.DefaultMin.Screen Name
188 SRV OUTPT SP RH
Service Output
Set Point for
Relative Humidity
0 100 100 % 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 Service Output Deadband for Carbon Dioxide
191 SRV OUTPT DB RH
Service Output
Deadband for Rel
ative Humidity
2.0 13.0 100.0 % Service Output Deadband for Relative Humidity
192 SRV OUTPT DB TEMP
Service Output
Deadband for
Temperature
1.0 8.0 162.0 °F Service Output Deadband for Temperature
193 SRV OUTPT DELAY
Service Output
Delay
64 416 8160 Sec Service Output Delay
14.2. System Relative Humidity Options
Option Description
0 - Hysteresis
ON when relative humidity is equal to or greater than Parameter 188 setting.
OFF when relative humidity is less than Parameter 188 setting minus Parameter 191.
1 - Window
ON when relative humidity is within range.
Parameter 188 plus Parameter 191
NOTE: Fixed 3% relative humidity hysteresis on options 1 - 3
2 - Delayed ON
Only ON when relative humidity is greater than Parameter 188. Otherwise service delay will be OFF.
3 - Delayed OFF
When relative humidity falls below Parameter 188 the service delay is turned OFF once Parameter 193 setting (seconds)
is reached.
14.3. System Indoor Air Quality / Carbon Dioxide Options
Option Description
0 - Hysteresis
ON when indoor air quality/carbon dioxide is greater than Parameter 187 setting.
OFF when indoor air quality/carbon dioxide is less than Parameter 187 minus Parameter 190 setting.
1 - Window
ON when indoor air quality/CO2 within range.
Parameter 187 (SRV OUTPT SP CO2) plus Parameter 190 .
2 - Delayed ON
ON when indoor air quality/CO2 is greater than Parameter 187. Otherwise service delay will be OFF.
3 - Delayed OFF
When indoor air quality/CO2 falls below Parameter 187 the service delay is turned OFF once Parameter 193 setting
(seconds) is reached.
14.4. System Outdoor Air Temperature Operation
Option Description
0 - Hysteresis
ON when outdoor air temperature is greater Parameter 189 setting.
OFF when outdoor air temperature is less than Parameter 189 setting.
1 - Window
ON when outdoor air temperature is within range.
Parameter 189 plus Parameter 192.
2 - Delayed ON
ON when outdoor air temperature is greater than Parameter 189 setting. Otherwise service delay will be OFF.
3 - Delayed OFF
When outdoor air temperature falls below Parameter 189 the service delay is turned off once Parameter 193 setting
(seconds) is reached.
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