Lennox X8792 Insert 340793 762 Efficient System Operation: Promotes better Efficient System Operation: Promotes better fuel economy by ensuring the circulator only runs when the system reaches the correct thermal threshold The gateway connects directly to the communication bus of the outdoor or indoor unit and utilizes the RJ45 Ethernet port for BACnet IP or the RS 485 terminals for BACnet MS TP wiring to the building controller you know that maintaining the catalytic surface is non negotiable for system performance This titanium dioxide coated insert works in direct tandem with UVA lamps to facilitate photocatalytic oxidation (PCO)