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).
For wall module wiring, U. If the local sensor is configured by Select, OdHum is periodically sent on the network. Each W Controller must have a honeywel temperature sensor input either wired directly to the controller, or shared from another LONWORKS Bus device, and must have a digital output configured for controlling the supply fan.
If ProofAirFlow shows air flow, then the control continues to operate, but honehwell ProofAirFlow fails to show air flow, then the control is again shut down for the minimum off time. W systems control the space temperature in a given w7750a005 by regulating the heating and cooling equipment in the air handler that delivers air to that space.
This error signal causes the heating stage outputs to be cycled, as required, to drive the space temperature back to the Setpoint. ResistiveIn is the only input available in the WA controller. Temperature sensor resistance plots Ventilation has priority over energy cost.
Q7750a2005 valid enumerated values are: These recommended values are based on past experience with the applications and in most cases do not require further adjustment. With this flexibility, it honrywell necessary to verify the stability of the temperature control in each different type of application. Prepare Wiring Diagrams section. Before the management node reads or writes any network variables, the management node checks nviInUse for a zero value meaning no other management nodes are already logged on and that a management node may log on to the node.
If no valid room temperature value is available to the W Controller, the temperature control algorithm in the controller is disabled, causing the heating, cooling, and economizer control outputs to be turned off. Outdoor Enthalpy, Type B—when the outdoor enthalpy meets the H type B requirements, the outdoor air is suitable to augment cooling.
Product has not been associated with this account, therefore your catalog will be empty. See Appendix E for information on how to derive the proper voltage value to enter as an offset during calibration. The W controllers automatically bind without the need for a configuration tool.
WA Excel10 CVAHU
This code honeywwell added numerically to another alarm code to indicate that the alarm condition has returned to normal. Prepare Wiring Diagrams General Considerations The purpose of this step is to assist the application engineer in developing job drawings to meet job specifications.
The cycling rate is separately selectable for heating and cooling between two and 12 cycles per hour cph. The three controllers have the same physical appearance except for terminals 16 through 20 WA and different labels next to the wiring terminals see Fig.
The indoor air quality honeywe,l acceptable. Estimate the program complexity of the Zone Manager one of three levels. The application size must be reduced as described above. SpaceTemp is the sensed space temperature from the locally wired sensor. Refer to Table 11 in Application Step 5.
Differential Temperature—the difference between outdoor temperature and return air honeywelk is w7750a200 to DiffEconEnTemp to determine whether outdoor air or return air is more suitable for use to augment mechanical cooling. WB,C construction in in. Note that the number of physical Digital Outputs DOs on the controller limits the total number w7750w2005 stages that can be controlled. If the controller is in this mode, it reverts to the Unoccupied setpoints for temperature control, and the economizer does not observe its minimum position setting.
ManualMode remains unchanged until another mode has been commanded or an application restart has been performed.
Honeywell WA Industrial Control System | eBay
Deviation from this rule can result in improper electrical contact. If the w7750a005 is outside the allowed range of to 50 degrees C to 90 degrees Fthen the node uses the value of the nearest range limit. WC shown has three 4 to 20 mA analog outputs. It is represented in the Intel Format. The various other modes are due to normal operation as well as manual and network commands. Typical WB Controller with staged heating and cooling wiring diagram.
Goneywell percent load, the transformer secondary must supply between 23 and 25 honsywell to meet the NEMA standard. NEMA class 2 transformer voltage output limits. These inputs affect the operational mode of the controller see Table 5 for a list of all possible modes of operation.
The WB,C Controller design must use the same power transformer for any loads connected to that controller; see Fig.
The second uses the wall module pushbutton see Fig. The valid enumerated values have the following meanings: HeatStagesOn indicates how many heating stages are on.
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