For Immediate Release: 10 December 2004 New Universal Gas Blower Control (Model UGB) ebm-papst Inc. has developed a new electronic control that expands the speed control interface of our premix gas blowers to accept variable or discrete analog signal outputs from conventional temperature controllers. The new universal gas blower control (Model UGB) converts up to four different analog signals into a PWM (pulse width modulation) signal that controls the speed of the gas blowers for staged or modulating burner operation. The UGB control is available for 24V or 120V AC systems. It converts signal inputs of 24VAC, 4-20mA, 0-5VDC, and 0-10VDC into an equivalent PWM signal output for (4) discrete speed settings or a modulation range of 10-100%. In addition, the I/O relationship can be adjusted with rotary and DIP switches for direct to inverse signal conversion and to change speed-curve characteristics. The UGB control was also designed to accept signal inputs from the ignition module to insure proper operation with safety, purge timing, and igniter functions. Additional features include programmable soft-start, diagnostic LED's, audible alarm, and tach input for closed loop speed control. Packaged to fit into a standard 4-11/16“ square steel junction box, the UGB controls now offers boiler and water heater OEM’s the opportunity to use an ebm-papst premix gas blower without changing their existing temperature control supplier. |
