HONEYWELL W7750A2005 PDF

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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See Appendix B—Sequences of Operation, for further control details. This includes the controller itself, the equipment actuators ML, or other motors and various contactors and transducers, as appropriate, for the Excel 10 configuration.

All staging events are subject to a minimum interstage time delay, that is based on the cycles per hour user setting HeatCycHr. Page 93 Table The occupied setpoints used in the control algorithms are limited by these parameters. The local sensor and nviWindow are ORed together. See Appendix E for information on how to derive the proper voltage value to enter as an offset during calibration.

These inputs affect the operational mode of the controller see Table 5 for a list of all possible modes of operation. Is the effective manual override state arbitrated from NetManOcc, the wall module override button and the Bypass Timer.

Voltage offsets are new in engineering units not volts. As the discharge noneywell warms up, the economizer modulates open until the minimum position setting is reached.

Subnet 1 is on the Zone Manager side of the router; Subnet 2 is on the other side. The W is placed in manual mode through a menu selection in the E-Vision Controller Monitor screen.

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Prepare Wiring Diagrams section. Resistance Value ohms Location of the Service Pin Button M X X Refer to nvoBypass. For this example, assume the cooling stage outputs are wired into a compressor control circuit and, therefore, have no impact on the power budget.

The third source for an occupancy request is from an override button located on a wall module. Control Provided The W Controller is designed to control a single air handler to maintain hoenywell units space temperature at the current setpoint.

Ventilation openings were designed honejwell the cover to allow proper heat dissipation regardless of the mounting orientation.

This code is added numerically to another alarm code to indicate that the alarm condition has returned to normal. A packaged economizer is always treated as the first stage of cooling when an economizer is configured by nciIoSelect. In cool outdoor conditions, fresh air can be used to supplement the mechanical cooling equipment. This limit is set in the Excel 10 Zone Manager database as an absolute maximum.

At this point, the low limit alarm honeywepl cleared. The Excel 10 has limited power available only 9 mA at 4.

A 2-toV differential pressure sensor wired to a current input on the WB,C. If different values for these parameters are desired, Table 13 Table 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.

Sensor, Setpoint adjust and Bypass. Also, when hpneywell wall module setpoint pot is configured, this value serves as w7750s2005 lower limit on the user adjustable remote setpoint pot wall module.

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Honeywell WA Industrial Control System | eBay

Pulse Width Modulating electric damper motor, or pneumatic via transducer. SmokeMonitor indicates the current state of the SmokeMonitor input used by the control process and is read from another node via nviEmerg or the local sensor via nvoIO.

With percent load, the transformer secondary must supply between 23 and 25 volts to meet the NEMA standard. Use to control Pneumatic reheat valves. M X Model indicates the Model of the node. EconEnable or from nviEcon. High side triac switching B and C only. Wall Module Option 1. Third party 2 to 10V, 2 to 10 volts displayed.

Calculate the number of Excel honeyell Zone Manager program points that are used in control logic and in the switching table. The W Controller is capable of stand-alone operation; however, optimum functional benefits w77750a2005 achieved when the network communication capabilities are used. Temperature control loops are to the electrical system. Locate the transformer hondywell to the controller, thereby reducing the length of the wire run, and the line loss.

W7750a 2005 Honeywell Excel 10 Constant Volume Air Handling Unit

Outdoor Temperature—when the outdoor temperature is less than OaEconEnTemp, then the outdoor air is suitable to augment cooling. The heating and cooling control loops will be turned off it there is a space temp sensor failure. No other options are currently valid. The step change in line impedance characteristics causes unpredictable reflections on the bus.