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Johnson Controls GG9S'MP Section Vi Twinning And Staging, UIM-H-0712, Accessory Connections, Humidifier Connection

FAQ

How do I connect an electronic air cleaner to the Johnson Controls Furnace?

You can connect an electronic air cleaner to the furnace using the two 1/4 6.4 mm spade terminals EAC and NEUTRAL located on the control board.

What is twinning in furnace applications?

Twinning is used to make two furnaces operate in tandem, using one duct system and one room thermostat.

Do I need to use a 24V relay when twinning two furnaces?

Yes, the use of a 24V relay is required to ensure that the transformers of the two furnaces are isolated, thus preventing the possibility of any safety devices being bypassed.