Inquiry (采购产品): Air flow sensing switch We purchased a gas heating device with an RH3A9 pressure switch that we need to jumper out of system to get unit to fire. I am wondering if the air tube is connected to the wrong fitting on the air switch. Should the air flow sensing tube be connected to the fitting on the side with the electrical box or the opposite(bottom) side? Can we get a copy of operators manual for this model? **** Hidden Message ***** John Cederstrom 48768 Company: Astech Inc E-mail: johnc@astechinc.com **** Hidden Message ***** johnc@astechinc.com