By Tom Costello, Market Manager, Appliance and Heating
Selecting, purchasing and integrating parts from many suppliers is a really cumbersome method to create gas-air-control (GARC) systems. But as far as anyone can remember, that’s exactly the way many original equipment/appliance manufacturers (OEMs) have assembled condensing boiler systems for their residential customers.
Over the years, ebm-papst’s role in this process has been to supply premix gas blowers as part of the overall GARC assemblies.
Enno Vroljik, who runs gas valve production for ebm-papst’s European and North American operations, knew there had to be a better way. Enno joined ebm-papst in 2010 and brought with him more than 20 years of gas valve development experience from Honeywell, located in the Netherlands.
Enno Vroljik, Program Manager – Gas Valves, ebm-papst Landshut.
To make life easier for our OEM partners and speed delivery of condensing boiler systems to their residential customers, Vroljik and his engineering team have developed a pre-assembled GARC system called the NRV Series.
Developed for residential condensing boilers rated up to 150 MBTU/H (45 kW), the NRV Series includes an NRG118 premix gas blower, mutli-venturi and GB 055 E01 gas valve that can be configured, pre-adjusted and supplied to customers as a turn-key GARC assembly.
As shown below, the NRV118 GARC assembly allows for the gas valve to be mounted in three different positions and the venturi to be rotated into six positions.
Vroljik and his crew aren’t done yet: They’re putting the final touches on NRV Series products for appliances rated up to 500 MBTU/H (150 kW). These will be launched in January at the AHR Expo 2013 in Dallas. Stop by our booth (#2967) to check out these new NRV systems, or contact us at firstname.lastname@example.org.
Gas-air ratio control assembly