C-Bus Honeywell proprietary Control Bus for communications between Excel 10 W Controllers: WA Constant Volume AHU Controller. Product – Brand: Honeywell; Product Number: WA; SINGLE ZONE AHU WITH STAGED HEAT/COOL OR HEAT PUMP. Category: HVAC. Product Identifiers. GTIN. BRAND. Honeywell. MPN. WA UPC. eBay Product ID (ePID).
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W7750A2005 Excel10 CVAHU
CA construction in in. Memory size approximation is shown below: MonSw is typically bound to an SBC to indicate a w7750a205 defined alarm condition.
This source has the lowest priority status in the above mentioned schemes. The indoor air quality is acceptable. The minimum pulse time represents the analog value of zero percent also indicates a signal presence and the maximum pulse length that represents an analog value of percent.
Direct Access and Special Manual Points. When it is configured, it provides the temperature input for the W temperature control loop. The frost protection setpoint is Local Dirty Filter Digital 2.
If ProofAirFlow shows that the fan is not running for FanFailTime consecutive seconds, then the control is shut down for the minimum off time. Then further refinements can made, as needed, until the system is operating as desired. On power-up, the controller configuration parameters are set to the default values listed in Table 20 in Appendix C. All Excel 10 points, mappable and calibration, configuration and internal data sharing points, can be viewed and changed, as allowed, via Direct Access DA mode in the XBS subsystem menu or via XI A configuration parameter is hojeywell to disable wall-module initiation of Continuous Unoccupied mode OvrdType.
Order Equipment After compiling a bill of materials through completion of the previous application steps, refer to Table 11 for ordering information. Use a larger transformer; for example, if an 80 VA model is used, see Fig. The physical inputs, network variable inputs, and network variable outputs are still functioning when the node is in the MANUAL mode. If there is no outdoor air temperature sensor available, then MinClRamp is used as the recovery rate.
The W7750a200 Band is used only in modulating control, and has no purpose when staged control is configured. If mechanical cooling is active when the discharge air falls below LowLimitDischAirTemp, the mechanical cooling cycles off after the minimum run times are obeyed to allow the dampers to return open and provide free cooling.
For field wiring, when two or more wires, other than 14 AWG 2. When in the HEAT mode, all cooling outputs are driven closed or off, and the staged heating outputs are enabled for use.
The two methods of monitoring the filter are: The ELA can also power three sensors but it connects to Vac line voltage. Also, 10 percent of the Control Band value is honeywsll size of the deadband around the setpoint where no actuator motion occurs.
Recovery ramps begin before the next scheduled occupancy time and are ramped from the setpoint for the existing scheduled occupancy state to the setpoint for the next occupancy state. Compliance with the NEMA standard is voluntary.
Honeywell WA User’s Manual |
W Controllers are shipped from the factory with a default hardware configuration. The information contained in nvoCtlDataG2 and nvoData2 are identical. Setpoints for the PID gains and for the control band allow for unit-by-unit adjustment of the control loops, if required; however, any change from the default values should be minimal. SpaceTemp is set equal to return air sensor IO. The controller remains in this mode indefinitely until the Bypass pushbutton is pressed to exit the mode or a network command is sent to clear the mode.
W750a2005 two types of economizer control: The timing is done by the bypass timer in this node. This value is used to control the adaptive recovery ramp rate during the COOL recovery period.
Honeywell W7750A2005 Excel 10 Cvahu
The temperature control loop is turned off. Contacts closed means poor IAQ is detected. CurrentState is used along with other occupancy inputs to calculate the effective occupancy of the node. The q7750a2005 five alarm reports sent via nvoAlarm are reported via AlarmLog.
Setpoints for the PID gains allow for unit-by-unit adjustment of the control loop, if required; however, any change from the default values should be minimal. Lay Out Communications and Power Wiring For more details, see Appendix B—Sequences of Operation.
Organization of Manual This manual is divided into three basic parts: If there is no water flowing the compressor is disabled. A channel in the cover allows the controller status LED to be visible when the cover is in place. EconEnable indicates the current suitability of outdoor air for use in cooling used by the control process EconEnable is periodically calculated either from the sensor s specified by nciConfig.
Off—no power to the processor. The range of VoltageOffsetCal is between -1 and 1 volt.
This can occur if the outdoor air temperature is cold enough to cause the discharge air temperature to drop below the DaTempLoLim setpoint when the dampers open to the EconIAQPos position, and the IaqUseHeat flag is set. The eight outputs on the WC consist of w7750a0205 digital and three analog outputs.
OdHum allows the local outdoor humidity sensor to be shared with other nodes and is typically bound to OdHum on other nodes. Voltage inputs are not available in the WA controller. Refer to Table 11 in Application Step 5.
Setpoint ramping parameters with ramp hlneywell calculation. Contacts closed equals smoke detected.