Honeywell VK4100C1042 gas valve

The Honeywell VK4100C1042B gas valve plays an important role in the burner control and ignition system, providing safe ignition, flame control and gas flow control for both the pilot and the main burner. This component includes the VK4100C 1042U gas valve and a specialized ignition regulator that connects to it.

The Resideo VK4100 C 1042U combined gas valve has a standard housing and provides a variety of settings, including:

• Pressure regulation using a servo.
• Regulation via the throttle valve.
• Smooth ignition using SOFTLITE technology.
• Regulation of the ratio of gas and air in a ratio of 1:1.
• Electric two-level regulator.
• Smooth regulation with amplification for various control methods.

The VK4100C1042 gas solenoid valve is equipped with two electrical devices: one for controlling the main valve and the other for controlling its position.

This gas solenoid valve is capable of working with three types of gases: heating, natural and liquefied.

General characteristics

• Screen: On the input side
• Pressure valve: Top for measuring inlet and outlet pressure
• Input and output are suitable for flanged connection
• Compression fitting: 4 mm
• Back pressure: 1st valve: 50 mbar; 2nd valve: 0 mbar
• Maximum inlet pressure: 60 mbar
• Ambient temperature: -15 … 60°C
• Gas connection: Inlet: diameter 18.6 mm Outlet: side outlet diameter 18.6 mm

Management functions

• Leakage requirements: According to EN126
• Maximum working pressure: 60 mbar
• Control flow rate: 0.1 m3/h (min) of air at a pressure drop of 9 mbar
• Softlite pressure: 5 mbar (-3.5/+0 after 1.5 sec.) adjustable
• Capacity (by air): 3.4 m3/h with a pressure drop of 3 mbar

Standard working conditions

• The output pressure is recorded using a sensor connected to a pipe with a diameter of 1/2 inch, 10 times the diameter, through a short hose with a length equal to 5 pipe diameters.
• The nominal pressure of the inlet gas is 25 millibars at dry air and a temperature of 20 °C.
• The ambient temperature is maintained at 20°C.
• The aperture has a size of 2.8 millimeters.
• Gas consumption is measured in cubic meters per hour.
• The ambient pressure is 1013 millibars.
• The Honeywell VK4100C1042B gas valve operates at rated voltage and is installed in an upright position.

General provisions

The VK4100C 1042U gas control unit combines all the safety and burner control functions in one reliable system. The inlet and outlet of the valve have a diameter of 18.6 millimeters and can be connected via flanges. There are different models of this valve with different levels of closing force: B + J, B + C, B + B.

There is a built-in fine-mesh filter at the inlet of the VK4100 C 1042 gas control block, which is not intended for cleaning. An additional output filter can be added if necessary. There are holes at the bottom of the valve for mounting to the installation.

There are variants of gas valves with side gas outlet for both the main and pilot burners. However, such a side outlet can only be used with a flanged burner manifold. In addition, there is a connection for pilot gas with a diameter of 4 mm at the outlet of the VK4100C1042 CVI valve. It is also possible to install pressure measuring fittings using silicone tubes with a diameter of 4 or 6 mm.

It is worth noting that there is a choice of different types of electrical connections, such as connecting to the ignition regulator using a connector or using a plug-in rectifier unit for a standard DBI ignition system. In addition, it is possible to choose options for operation at a voltage of 24V for joint use with other ignition regulators, excluding regulators of the S4565/S4585 series.

The principle of operation

As for the principle of operation, VK4100C 1042 gas regulators use a positive feedback system, which means that the main valve automatically closes when there is no power supply or gas pressure is exceeded. The system includes a pressure servo controller and a pressure relief valve that work together. When the power supply is supplied, the gas passes through the servo controller and opens the main valve. The system then maintains a constant pressure by regulating the operation of the main valve. This ensures a stable output pressure, even with input pressure changes.