22X18 - Equipment Interface Module

Lennox EIM, Residential Communicating Control System Equipment Interface Module
The Equipment Interface Module (EIM) allows a Lennox® Communicating Thermostat to be used with most noncommunicating HVAC systems.

The EIM allows most conventional, non-communicating furnaces or air handlers (up to 3 stages heating and 2 stages cooling) to emulate a Lennox Communicating indoor unit (with reduced communication features).

Contains all necessary relays and controls to emulate a Lennox Communicating indoor unit
Module has two green LEDs
One indicates status and aids in troubleshooting, a second LED indicates active RSBus communication
Any system alerts/warnings are transmitted to the Lennox Communicating Thermostat
Serial communications bus (RSBus), with less wiring than a conventional heating/cooling system, allows system communication
Uses 4-wire, 18-gauge standard thermostat wiring for connection to the Lennox Communicating Thermostat
Conventional thermostat wiring connects the EIM to the non-communicating indoor/outdoor unit equipment

Accessories: 

X2658 - LN MERIT Thermostat Outdoor Sensor

Images are for illustration, products subject to manufacturer revision.