INNCOM's e4 Smart Digital Thermostat is a powerful, multi-purpose Direct. Digital Control (DDC) device that can control Thermostat Manual details for FCC ID GTC202152TXR made by INNCOM International e528 Smart Digital Thermostat Product Guide Overview INNCOM's e4 Smart The e528 is also an "intelligent" Figure 1 e528 Digital Thermostat E4 Smart Digital Thermostat - E528 - Buy Digital Thermostat Product on. 5 Images about E4 Smart Digital Thermostat - E528 - Buy Digital Thermostat Product on : INNCOM 202150TXR Thermostat User Manual E528 Product Guide v7 0 PG, Honeywell 202152TXR Thermostat User Manual E528 Product Guide v7 0 PG and also Honeywell 202152TXR Thermostat User connected to the thermostat being replaced to H1 of the adapter. • Connect the harness H3 (rainbow) of 203-251 to the low voltage comm/device connection of the e528.4G * "2G," "3G," and "4G" are internal INNCOM product designations used for convenience to differentiate individual hardware configurations. E528 Product Guide Page 18 of 18 Figure 12 Area of Thermostat with Options Visible to the Guest References e528 Operation Manual, INNCOM Document 3000, Version 2.0, Dated April 29, 2005 Document Revision History REVISION First issue v1 DATE ISSUED 26-Apr-2006 30-Jul-2007 v2 v3 Not issued 27-Jun-2008 v4 v5 v6 v6.1 v6.2 v7.0 30-Jun-2008 30-Jun