Air Quality — The Air Quality set point is used to configure the IAQ set point for the zone controller if optional controlled ventilation support is used.
Air Quality | Units | none shown (ppm |
(ppm): |
| implied) |
| Range | 0 to 5000 |
| Default Value | 850 |
Delta Airflow — The Delta Airflow set point is used to con- figure the Delta Airflow set point for the zone controller if the zone pressure control option is used. If a negative pressure is desired, configure the value as a positive delta.
Delta Airflow: | Units | cfm |
| Range | |
| Default Value | 0 |
Service Configuration Selection Screen — The Service Configuration Selection screen is a menu of Service screens which can be accessed by the user. The following screens are available: Airflow Service Configuration, Terminal Service Configuration, Option Service Configuration, and Sec- ondary Damper Service Configuration.
AIRFLOW SERVICE CONFIGURATION SCREEN — The Airflow Service Configuration Table is used to configure the pressure independent and backup pressure dependent set points. See Table 9.
Pressure Independent — Pressure Independent (PI) set points should be configured for pressure independent operation applications.
Cool Minimum (PI) — This configuration is the minimum airflow the terminal will control to when the equipment is in Cooling mode (or Fan Only mode) or free cooling. The space requirements for cooling must be at a minimum, or the terminal is a fan powered terminal and the space requirements are for heat.
Cool Minimum: Units | CFM |
Range | 0 to 9999 (Limited by |
the High Velocity pressure limit alarm) | |
Default Value | 0 |
Cool Maximum (PI) — This configuration is the maximum airflow the terminal will control to when the equipment is in Cooling mode (or Fan Only mode) or free cooling and the space requirements for cooling are at a maximum.
Cool Maximum: Units | CFM |
Range | 0 to 9999 (Limited by |
the High Velocity pressure limit alarm) | |
Default Value | 4000 |
Terminal Reheat (PI) — This configuration is for single duct units with ducted reheat. The desired airflow is configured at which the reheat will provide optimum performance. This val- ue is compared to the Minimum Cool value and the greater of the two values is used to determine the airflow set point.
Terminal Reheat: Units | CFM |
Range | 0 to 9999 (Limited by |
the High Velocity pressure limit alarm) | |
Default Value | 0 |
→ Table 8 — Set Point Screen
DESCRIPTION | DEFAULT | POINT NAME |
Set Points |
|
|
Occupied Heat | 70.0 F | OHSP |
Occupied Cool | 74.0 F | OCSP |
Unoccupied Heat | 55.0 F | UHSP |
Unoccupied Cool | 90.0 F | UCSP |
Occupied HIgh Humidity | 60.0 % | ORHH |
Unoccupied High Humidity | 100 % | URHH |
Air Quality (ppm) | 850 ppm | AQSP |
Delta Airflow | 0 cfm | DCFM |
Table 9 — Airflow Service Configuration Screen
DESCRIPTION | DEFAULT | POINT NAME |
Pressure Independent |
|
|
Cool Minimum | 0 cfm | COOLMIN |
Cool Maximum | 4000 cfm | COOLMAX |
Terminal Reheat | 0 cfm | REHEAT |
Heat Minimum | 0 cfm | HEATMIN |
Heat Maximum | 4000 cfm | HEATMAX |
Parallel Fan On | 0 cfm | FNONCFM |
Dual Duct CV Airflow | 4000 cfm | DDCVFLOW |
Pressure Dependent |
|
|
Cool Minimum Position | 0 % | CMINPOS |
Cool Maximum Position | 100 % | CMAXPOS |
Reheat Minimum Position | 0 % | REMINPOS |
Heat Minimum Positon | 0 % | HMINPOS |
Heat Maximum Position | 100 % | HMAXPOS |
Deadband Percent | 12.5 % | DB_PCT |
37 | 1001 |
