Table 14 — Service Configuration Selection
DESCRIPTION | VALUE | UNITS | NAME |
Cooling PID |
|
|
|
Proportional Gain | 6.0 |
| KP |
Integral Gain | 3.0 |
| KI |
Derivative Gain | 5.0 |
| KD |
Starting Value | 70.0 | dF | STARTVAL |
Staged Cooling |
|
|
|
Total Number of Stages | 2 |
| STAGES |
Stage 1 Time Guard | Enable |
| TG1 |
Stage 2 Time Guard | Enable |
| TG2 |
Stage 3 Time Guard | Disable |
| TG3 |
Heating PID |
|
|
|
Proportional Gain | 6.0 |
| KP |
Integral Gain | 3.0 |
| KI |
Derivative Gain | 5.0 |
| KD |
Starting Value | 75.0 | dF | STARTVAL |
Staged Heating |
|
|
|
Total Number of Stages | 2 |
| STAGES |
Stage 1 Time Guard | Enable |
| TG1 |
Stage 2 Time Guard | Enable |
| TG2 |
Stage 3 Time Guard | Enable |
| TG3 |
IAQ PID |
|
|
|
Proportional Gain | 0.1 |
| KP |
Integral Gain | 0.0 |
| KI |
Derivative Gain | 0.0 |
| KD |
Starting Value | 0.0 | % | STARTVAL |
Economizer PID |
|
|
|
Proportional Gain |
| KP | |
Integral Gain |
| KI | |
Derivative Gain |
| KD | |
Starting Value | 70.0 | dF | STARTVAL |
Submaster Gain Limit |
| ESG | |
Submaster Center Value | 60 | % | CTRVAL |
Damper Movement Band | 0 | % | ECONBAND |
OAT Temp Band | 25 | ^F | TEMPBAND |
Minimum Damper Position | 20 | % | MDP |
Low Temp MDP Override | 100 | % | LOWMDP |
DX Cooling Lockout | On |
| DXCTLO |
DX Cooling Lockout Temp | 45.0 | dF | DXLOCK |
SAT CMP1 Lockout Temp | 55.0 | dF | SATL01 |
SAT CMP2 Lockout Temp | 50.0 | dF | SATL02 |
Time Guard Override | Off |
| TGO |
Continuous Power Exhaust | Disable |
| MODPE |
Supply Fan Status Enable | Disable |
| SFSENABL |
Max Offset Adjustment | 2.0 | ^F | LIMT |
Space Temp Trim | 0.0 | ^F | RATTRIM |
Supply Air Temp Trim | 0.0 | ^F | SATTRIM |
STAGED COOLING — The staging function is used for DX cooling (1 or 2 stages). The staging function uses the cooling submaster reference from the PID and compares the value to the supply air temperature to calculate the required number of output stages to energize.
Time Guard delays are provided to allow for up to 2 stages of compression. Also, a DX Lockout will prevent operation of the DX cooling if the outdoor air temperature is below this value.
The cooling algorithm controls the valve or stages of DX cooling to prevent the space temperature from exceeding the current cooling set point (which includes any calculated offset value from a T56 sensor slide bar during occupied periods).
Also, the cooling is controlled so that the supply air tempera- ture does not fall below 50 F when cooling is active.
If number of stages is set to 1, then the SAT CMP2 LOCK- OUT TEMP will be used as the low supply air set point.
Number of Stages: Range: | 1 to 3 |
Default Value: | 2 |
The Time Guards must be set to Enable for output to a compressor, and set to Disable for output to a valve or compressor unloader.
Stage 1
Time Guard: Range: Disable/Enable Default Value: Enable
Stage 2
Time Guard: Range: Disable/Enable Default Value: Enable
Stage 3
Time Guard: Range: Disable/Enable Default Value: Disable
HEATING PID — The PremierLink™ controller determines if a heating demand exists in the space. The controller reads the space temperature sensor and compares the temperature to the current low set point (including any calculated offset value from a T56 or T57 sensor) during occupied periods. If it is below the set point, and heating is configured and available, it then calculates the required supply air temperature to satisfy the given conditions. The calculated value (heating submaster reference) is compared to the actual
The Heating PID includes the following set points: Propor- tional Gain, Integral Gain, Derivative Gain, and Starting Value.
Proportional Gain: | Range: | |
| Default Value: | 6.0 |
Integral Gain: | Range: | |
| Default Value: | 3.0 |
Derivative Gain: | Range: | |
| Default Value: | 5.0 |
Starting Value: | Units: | Degrees F |
| Range: | 40.0 to 120.0 |
| Default Value: | 75.0 |
STAGED HEATING — The Staged Heating function is used for
Number of Stages: | Range: | 1 to 3 |
| Default Value: | 2 |
Stage 1 |
|
|
Time Guard: | Range: | Disable/Enable |
| Default Value: | Enable |
Stage 2 |
|
|
Time Guard: | Range: | Disable/Enable |
| Default Value: | Enable |
Stage 3 |
|
|
Time Guard: | Range: | Disable/Enable |
| Default Value: | Enable |
IAQ PID — The proportional gain affects the response of PID calculations for staged control. The gain is also used for two- position control to establish the hysteresis between on and off. A larger gain speeds response time or reduces the hysteresis, while a smaller gain requires a larger error to generate the same response to changes in Indoor Air Quality. Enter the desired proportional gain for the Indoor Air Quality control algorithm.
34
