6
Since 1965
MicroMetl
Note :
On some models the 9962-0407-SAOEXT is built in to and is a
part of the standard harness attached to the Jade W7220 controller
terminals "MAT" and "OAT".
Figure 12 – Connect Ground Wire From Controller
Step 17: Locate the 9962-0407-SAOEXT harness (with 4-pin
female plug) provided in the economizer hardware kit. Connect the
9962-0407-SAOEXT harness to the 4-wire harness with a male
plug from the Jade controller harness. See Figures 13 and 23.
Important - See note below.
For 48/50LC 07-12 Instructions, see pages 10-12
Figure 13 – Connect 9962-0407-SAOEXT Harness
to Harness from Controller (See note )
Step 18: Route the 4-wire 9962-0407-SAOEXT harness through
the divider between the control box and the indoor blower section.
See Figure 14. Important - See note below.
Figure 14 – Route 9962-0407-SAOEXT Harness
to Indoor Blower Section (See note below)
(Some control box congurations may dier)
Step 19: Screw the 9901-2021 mixed air (MAT) sensor (Honeywell
C7250) to the left side edge of indoor blower through pre-
punched holes, see Figure 15. Conrm that the screws do not
interfere with blower rotation. Connect the 2-pin plug from the
9962-0407-SAOEXT harness to the MAT sensor. See Figures 15
and 23. Important - See note below.
Figure 15 – Mount and connect Mixed Air Sensor
4-Pin Male Plug
from Controller
Control
Box
9962-0407-SAOEXT
Harness (See note below)
Indoor
Blower
Section
9962-0407-SAOEXT
Harness (See note )
Brown and Orange wire from
9962-0407-SAOEXT (See note below)
Indoor blower
Mixed Air
Temperature
Sensor 9901-2021
A
A
A
A
A
A
A
A
A
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