Honeywell International Inc.

Honeywell G.m.b.h.

Scott Paul O'Leary

Robert D Juntunen

James I Bartels

Richard M Solosky

Patrick R Moenkhaus

A gas valve assembly includes a solenoid coil, a linearly actuated plunger, and a stop member. The plunger is disposed in the coil so that a gap exists between the plunger and the stop member at a deenergized condition of the solenoid. The assembly includes a valve having a port and a closing member. The closing member blocks the port in a closed position corresponding to the de-energized condition of the solenoid, and slidably unblocks the port in an open position corresponding to the energized condition of the solenoid. An adjustable length member is coupled to the closing member and the plunger and has a portion accessible external to the valve assembly. The externally-accessible portion of the adjustable length member is adjustable to vary the size of the gap between the plunger and the stop member when the closing member is in the closed position.

Adjustable shutoff valve

A system for commissioning a controller accepts a different manual input during each of several different phases of the installation and provides the installer with a different detectable cue during each phase. The installer provides the manual input and then operates a switch indicating the input is present. The system stores the manual input present and advances the system to the next phase, and in a preferred embodiment provides a visible cue identifying each phase. The preferred embodiment uses devices controlled by the controller during normal operation and which also have manual position adjustment or set point selection to provide the manual inputs.

Control system apparatus and method using a controlled device for manual data entry

A control system for controlling an operating system stores a system parameter such as an ultimate pressure value, for an operating system. The control system allows operation of the operating system only after an initial value of the system parameter has been loaded. In one embodiment, a data generator element intended normally to specify a set point for the operating system, is used to provide the system parameter value as well. The control system provides a grace period after a value of the system parameter has been entered during which the system parameter value can be changed. After the grace period ends, the system parameter value cannot be changed by the operating system manager under normal circumstances. A light source is flashed in various patterns to indicate to personnel which of several different actions available to the control system are occurring.

Control system apparatus for loading a value of a system parameter and preventing change thereto after a period of time

A modulated burner combustion system that prevents the use of components that were originally not commissioned for use in the system. The present invention uses actuators that contain unique stored identification numbers. When the system is initially configured or commissioned, the unique identification numbers of the actuators are stored in nonvolatile memory in a fuel/air controller. When the system is brought on line, the fuel/air controller microprocessor initially sends false IDs to the actuator together with test control signals to determine if the actuator operates in response to the false identification numbers. If the actuator does operate in response to the false identification numbers, that is an indication that the system has been tampered with and the system is, consequently, shut down. Subsequently, the true identification numbers are transmitted to the actuators with test control signals. The fuel/air controller microprocessor determines if the actuators move properly in response to the test control signals. If they do not move or do not move properly, that is an indication that an actuator is present in the system that was not originally commissioned with the system, or that an actuator is operating improperly. In that case, the system is also shut down. The feedback mechanism of the present invention eliminates the need for expensive safety software and expensive microprocessors in the actuators.

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Plymouth, MN, United States of America

Scott Paul O'Leary