542933-UIM-C-0112
12 Johnson Controls Unitary Products
3. Set the appropriate jumper settings to insure proper control functionality (See table below).
The furnace control may be labeled so that C = GND.
FIGURE 11:
Indoor Screw Terminal Location
Unit Control Jumpers which must be set
Furnace
Heat Pump
Humidistat
Zone Control
Air Handler (AHV) No Jumpers Required
Air Handler (AV/MV)
Heat/No Heat
AC/HP
Hum Stat
Jumpers listed here are required and if set incorrectly will flag an error upon installation. While the
other jumpers can be set from the Touch Screen Communicating Control, it is good practice to ini-
tially set all jumpers at the respective control. This will avoid any confusion that may occur with
future service at the units. The Hum Stat jumper on the air handler must be set to “YES”.
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