A O Smith Bth 120a Bth 150a Bth 199a Bth 250a Bth 300a Bth 120(a) through bth 500(a) model shown: bth 199(a) series 300 301 intelligent control system with touch screen display and icomm connectivety onboard* • exclusive a. o. smith designed color touch display control system • provides detailed water heater status information • precise temperature control adjustable from 90 to 180 degrees. Summary of contents for a.o. smith bth 120. page 1 bth 120, 150, 199, 250 service handbook includes parts list for series 960 through 967 this service handbook was prepared by: the training department irving, texas $15.00 printed in the u.s.a. 3 00 part no. tc 044r2.
A O Smith Bth 120a Bth 150a Bth 199a Bth 250a Bth 300a Turn off the supply gas to the water heater at the main gas shutoff valve serving the water heater. open the supply gas pressure test port on the gas control valve, see figures below. turn the needle valve slotted head 1 2 to 1 full turn counter clockwise with a small slotted screwdriver to open the valve. The current mxi modulating models adjust firing rate to the specific demand further increasing efficiency and money savings. bth 120 uses up to 120,000 btu h of gas to deliver 138 gph at 100f rise. a. o. smith offers the largest commercial product selection available, including the most specified commercial unit in the u.s. Commercial water heater parts list. model bth 120,150, 199, 250 series 966 967 & 970 971 973. Variable frequency drive blower speed and pressure readings. 45. wiring diagram bth 120 300. 46. wiring diagram bth 400, 500. 47. advertisement. a.o. smith bth 199 series pdf user manuals. view online or download a.o. smith bth 199 series service handbook.
A O Smith Bth 120 250a User Manual Commercial water heater parts list. model bth 120,150, 199, 250 series 966 967 & 970 971 973. Variable frequency drive blower speed and pressure readings. 45. wiring diagram bth 120 300. 46. wiring diagram bth 400, 500. 47. advertisement. a.o. smith bth 199 series pdf user manuals. view online or download a.o. smith bth 199 series service handbook. Models bth 120 150 199 250 series 100 & 101. installation operation service maintenance limited warranty. read and understand this instruction manual and the safety messages herein before installing, operating or servicing this water heater. failure to follow these instructions and. models bth 120 150 199 250 series 100 & 101. Ao smith 100234872 bth 120a cyclone 60 gallon, 120 input mbtu 95% afue commercial natural gas water heater power vent 3 year warranty. the full line of a. o. smith cyclone mxi condensing water heaters has been designed to provide years of dependable service and feature industry leading technology.