Honeywell Excel 15 User Manual

Describes the Excel 15 W7760C Plant Controller device for monitoring and controlling HVAC equipment.

Guidelines for mounting the W7760C, including clearance, environmental considerations, and enclosure construction.

Provides dimensions for W7760C assembly and subbase, detailing DIN rail and wall mounting methods.

Ensures all wiring adheres to local codes and specifies termination at subbase screw terminals.

Illustrates a typical application of the W7760C for controlling an air handling unit.

Details on digital output commons, analog/digital ground terminals, and wiring compliance.

Specifies 24 Vac power requirements, transformer sizing, Class II sources, and powering multiple controllers.

Recommendations for wire gauge, terminal block capacity, and connection methods for power and ground wiring.

Best practices for power wiring, including earth ground, wire separation, and daisy-chaining considerations.

Details powering requirements for UL 1995 equipment, including transformer secondary to earth ground connection.

Guidelines for LONWORKS Bus wiring, including cable types, topology rules, repeaters, and connection methods.

Notes on daisy-chaining, network breaks when cover is unplugged, and wire bundling.

Guidance on using consistent wire types, avoiding EMI interference, and maintaining wire separation.

Information on supporting RIO devices and the importance of not grounding LONWORKS network wires.

Instructions for connecting a 209541B Termination Module to the LONWORKS network terminals.

Illustrates the wiring of termination modules for doubly terminated LONWORKS buses.

Detailed procedure for stripping, twisting, inserting, and testing wire connections at terminal blocks.

Describes accessing the LONWORKS Bus by plugging the Serial LONTALK Adapter (SLTA) into the LONWORKS Bus jack.

Procedure to check for the presence of 24 Vac power at the controller's subbase.

Instructions to inspect all wiring connections at the W7760C terminals and verify job site drawings.

Steps for verifying termination module placement and installing the cover assembly.

Guidance on startup procedures and interpreting the W7760C's status LED indications.