Abstract: A readout apparatus that can be carried in the shirt pocket of a technician. The readout apparatus is used to easily and quickly make a connection to a heating system via a data access port of the heating controls, especially in low light situations, without the need for cables or probes. A display enables a technician to determine information concerning the operational characteristics of the heating system control unit to obtain information concerning the operational characteristics of the heating system. Real time operational information concerning the operation of the heating system via its control unit such as well temperature, cad cell, and line voltage are provided. The apparatus is powered from the electrical power available at the data access port so that the apparatus does not require the use of batteries or need any external switching such as an on/off button.

Abstract: A gas burner operation monitoring apparatus for enabling convenient diagnosis of gas burner and control problems. The invention is a temporarily attached device that collects and stores information concerning the key functions indicative of a gas burner's operation. If a fault occurs, the apparatus generates a signal to indicate to a downstream microprocessor, if such is connected, that a problem has occurred. This eliminates the need for the technician to randomly replace parts until the problem is located. The system monitors the status of the thermostat or aquastat; the presence and the level of voltage being sent to the main gas valve; the pressure of gas at the inlet and outlet of the main gas valve and either the temperature on the outside of the vent stack pipe or the presence and quality of flame at the main gas burner. The device also provides a signal in the event of a fault that can be connected to a downstream microprocessor that, in turn, can activate various warning devices.

Abstract: A gas burner operation monitoring apparatus for enabling convenient diagnosis of gas burner and control problems. The invention is a temporarily attached device that collects and stores information concerning the key functions indicative of an gas burner's operation. If a fault occurs, the apparatus generates a signal to indicate to a downstream microprocessor, if such is connected, that a problem has occurred. This eliminates the need for the technician to randomly replace parts until the problem is located. The system monitors the status of the thermostat or aquastat; the presence and the level of voltage being sent to the main gas valve; the pressure of gas at the inlet and outlet of the main gas valve and either the temperature on the outside of the vent stack pipe or the presence and quality of flame at the main gas burner. The device also provides a signal in the event of a fault that can be connected to a downstream microprocessor that, in turn, can activate various warning devices.

Abstract: An oil burner operation monitoring apparatus for enabling convenient diagnosis of burner problems. The invention has two major components: a permanently mounted or integral data collection unit that is connected to key points in the oil burner and a portable data reading unit. The data collection unit records and stores information concerning the key functions indicative of an oil burner's operation. If a fault occurs, the apparatus generates a signal to indicate to a downstream microprocessor, if such is connected, that a problem has occurred. The oil burner technician, using the portable data reading unit, connects to the data collection unit accessing the stored information in the data collection unit concerning the reason for the problem. This eliminates the need for the technician to randomly replace parts until the problem is located.

Abstract: An oil burner operation monitoring apparatus for enabling convenient diagnosis of burner problems. The device is connected to key points in the oil burner. The device records and stores information concerning the key functions indicative of an oil burner's operation. If a fault occurs, the apparatus generates a signal to indicate to a downstream microprocessor, if such is connected, that a problem has occurred. The oil burner technician can access the invention for the information concerning the reason for the problem. This eliminates the need for the technician to randomly replace parts until the problem is located. The system monitors the status of the thermostat; the presence and the level of voltage powering the ignition transformer and temperature on the outside of the vent stack pipe. The device also provides a signal in the event of a fault that can be connected to a downstream microprocessor that, in turn, can activate various warning devices.