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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EconIaqPos and to possibly turn on the heat according to the state of Config.
Training and Development Portal. 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 RtuSendT should be set to 55 seconds by a management node to be compatible with a Honeywell system. If honeywel value is outside the allowed range 4 to 20 mAthen the node uses the value of the nearest range limit.
One of the digital inputs is connected to a printed wiring board trace to let the embedded software know what kind of hardware is present. When DlcShed is 1, demand limit control set by an energy management node is active.
W7750a 2005 Honeywell Excel 10 Constant Volume Air Handling Unit
NONE disables the override button. Honeyweol the state is other, then the network variable is not bound, the communications path from the sending node has failed, or the sending node has failed.
Troubleshooting Troubleshooting Excel 10 Controllers and Wall Modules In addition to the following information, refer to the Installation Instructions w7750q2005 Checkout and Test manual for each product. Two different methods of detecting poor air quality hlneywell supported, The first is by using an IAQ switch device connected to a digital input on the W Controller, where a contact closure indicates poor air quality and initiates the IAQ override mode. The bypass pushbutton can change the controller into various occupancy modes, see Table The failure detect mechanism is only active when the NV is bound bindings are configured using Refer Excel 10 points.
Use heavier gauge wire for the power run. The WA,B,C Controllers can be configured to control a wide variety of possible equipment arrangements. Pressing the bypass pushbutton for more than four seconds causes the controller, hard-wired to the TA,B, to go into continuous unoccupied override. If the analog input w7750z2005 is used, its measured value 0 to 5 inw 0 to 1. Slow W7750a205, normal state. Contacts closed equals smoke detected. Temperature sensor resistance plots With this flexibility, it is necessary to verify the stability of the temperature control in each different type of honeywsll.
Offset and Absolute Middle. Determine the number of points per controller required at the Central for example, XBS.
Econ does not affect Econ. When using different types is unavoidable, use a QA,B Router at the junction. When memory size is greater than , the size is too large.
For this example, assume the cooling stage outputs are wired into a compressor control circuit and, therefore, have no impact on the power budget. State, refer to IaqOvr. Use to control Pneumatic reheat valves. Check the version numbers of the controller firmware, E-Vision and the E-Vision script. The controller outputs a pulse whose length consists of two parts, a minimum and a maximum. The error rate is how fast the error value is changing. Remote only, continuous Occupied override.
M X X Refer to nvoBypass. For wall module wiring, U. M X S7750a2005 indicates the Model of the node. W systems in commercial buildings typically incorporate a packaged air handler system that delivers a constant volume of air at preconditioned temperatures to the zone being served.
WA Excel10 CVAHU
On power-up, the controller configuration parameters are set to the default values listed in Table 20 in Appendix C. The WB,C Models are intended for more complex applications. False 0 it is not freezing or True 1 it is freezing.
There are no fieldserviceable parts on the circuit board and, therefore, it is intended that the cover never be removed. WB Controller with floating heating, cooling and economizer wiring diagram. The information contained in nvoCtlDataG2 and nvoData2 are identical. An Excel 10 can provide the alarm types listed in Table 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.
Honeywell WA Industrial Control System | eBay
Outdoor Temperature—when the outdoor temperature is less than OaEconEnTemp, then the outdoor air is suitable to augment cooling. There are increments available, so the number of increments required for 50 percent would be 0.
Table 34 lists the points for Sensor Honeywelp versus Humidity. 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 hondywell and provide free cooling.
Then the management node writes a number, 1 throughto nviInUse and periodically writes the same value to indicate that the management node is still logged on.
The controllers mount with two screws see Fig. ManOcc is used along with other occupancy inputs to calculate the effective occupancy w77502005 the node. X Window allows the hard wired window sensor to be used by other nodes on the network.