Honeywell Boiler Aquastat Switching Relay

The Honeywell Home Aquastat Relay is designed for use with an HVAC heating system. This immersion-type controller provides high limit protection while switching control of the oil burner and the circulator. Compatible with Honeywell Home models.|Designed for use with an HVAC heating system|120 240 degree F range with 8 degree F fixed differential, low volt/millivolt|Select models include transformer and accessory terminals for adding a remote low limit controller|Requires a 24 VAC thermostat with heat anticipator set at 0.2A