12
Fig. 29 — Photo of 48LCHSRADH-A00 W7220
Controller Harness Shipped With
48/50LC 07-12 Units
4. The connectors on the right side of Fig. 28 on the 48LCHS-
RADH-A00 harness attach to the Jade W7220 controller
installed in the unit control box. See Fig. 28 and 30.
48LCHSRADH-A00 harness connectors are labeled to eas-
ily identify the plug-in location on the controller.
5. Locate the Compressor Staging Control (CSC) board in
the HVAC unit. When a field-installed economizer is used,
the J5 jumper on the CSC must be removed. Remove the
J5 jumper. See Fig. 30.
6. The connectors on the left side of Fig. 28 on the 48LCHS-
RADH-A00 harness attach to the unit’s CSC board. Con-
nect J3 and J5 plugs to the CSC board. See Fig. 30.
7. Screw the green wire with yellow stripe in the 48LCHS-
RADH-A00 harness to the control box (ground). See
8. Mount the provided HH79ZZ007 mixed air temperature
(MAT) sensor to the indoor blower. Confirm that the
screws do not interfere with blower rotation (see Fig. 23).
Connect the (2) spade terminals on the HH79ZZ007 to
orange and brown wires in the indoor blower section wire
bundle.
9. If using a differential return sensor or DCV sensor, install
it now. See installation details later in this instructions and
the wiring diagram for further information.