INDIRECT GAS FIRED FURNACES
Typical Furnace Control Logic
In all cases, refer to the unit-specific wiring diagram located on the unit control center door. This illustration is only for a typical 4:1 turndown
electronic modulation configuration.
Figure 34: Typical Furnace Control Logic
Due to our policy of continuous product innovation, some specifications may change without notification.
68
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.