Metal Heater control (Fireman) switch kit Designed to Turn off a Gas Fired Pool/spa Heater Approximately 20 Minutes Before the Filter Pump Shuts down
Modified Industry Description
HTR CNTRL,FIREMAN,SW KIT (ND)
Intermatic® 156T4042A Heater Control/Fireman Switch Kit, 250 VAC, 10 A, 60 Hz Frequency, For Use With Pool/Spa Heater and Filter Pump
The 156T4042A Fireman Switch provides coordinated control for any pool/spa heater and filter pump. It is designed to turn OFF a gas fired pool/spa heater approximately 20 minutes before the filter pump shuts down. This eliminates the problem of pounding and knocking caused by overheated water and also reduces scale and lime deposits and extends service life of the heater.