To increase the overall efficiency of a hot water recirculation system, the TC-1 timer control kit can be installed for use on any B and G NBF circulator. The TC-1 timer control is programmable to turn the circulator ON and OFF automatically at preset times. This permits the user to have the pump circulate hot water only during those times when high usage can be expected throughout the day.
Bell & Gossett Automatic Timer Kit, 115 to 120 VAC 16 A 60 Hz 1-ph, Noryl Plastic