Honeywell W7750A specifications Common Operations

	EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
Common Operations	NOTE: Each W7750 Controller must have a space

The Excel 10 W7750 Controller applications have many	temperature sensor input either wired directly to the
	controller, or shared from another LONWORKS Bus
common operations that are applicable regardless of the type
	device, and must have a digital output configured for
of heating, cooling, or economizer equipment configuration.
	controlling the supply fan. In addition, if modulating
These operations are available to the W7750A and the
	economizer control is desired, a discharge air
W7750B,C Versions of the CVAHU Controller, and the I/O and
	temperature sensor must be physically connected to
network configurations for them are summarized in Table 14.
	the Excel 10 W7750 Controller. A discharge
Available input options are from the wall module and the	temperature signal cannot be brought into the
	controller through the LONWORKS Bus network.
hard-wired analog and digital inputs. Each application can
have only a subset of these devices configured based on the
number of physical I/O points available. However, some of the
inputs are available over the LONWORKS Bus network.

Table 14. Common Configuration Options Summary For W7750A,B,C Controllers.

Option		Possible Configurations Common To All W7750 Models
Supply Fan	1.	Mandatory Digital Output.
Type of Air Handler	1.	Conventional.
	2.	Heat Pump.
Occupancy Sensor	1.	None.
	2.	Connected: Contacts closed equals Occupied.
	3.	Network (Occ/Unocc signal received via the LONWORKS Bus network).
Window Sensor	1.	None.
	2.	Physically Connected: Contacts closed equals window closed.
	3.	Network (Window Open/Closed signal received via the LONWORKS Bus).
Wall Module Option	1.	Local (direct wired to the controller).
(The T77560A,B has no LONWORKS Bus access)	2.	Network (sensor value received via the LONWORKS Bus).
Wall Module Type	1.	Sensor only.
(All wall modules have a LONWORKS Bus access	2.	Sensor and Setpoint adjust.
jack except T7560A,B)	3.	Sensor, Setpoint adjust and Bypass.
	4.	Sensor and Bypass.
Smoke Emergency Initiation	1.	None.
	2.	Physically Connected: Contacts closed equals smoke detected.
	3.	Network (Emergency/Normal signal received via the LONWORKS Bus).

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