3
Step 4 — Run Sensor Lead
1. Remove blower compartment panel and run sensor lead
across top of box and pass through grommet on right side
for connection to sensor. See Fig. 1 and Fig. 5.
Step 5 — Install Sensor
1. If an economizer is installed on unit it must be removed
to access filter rack and condensate pan.
2. Remove air filters and filter rack. See Fig. 6.
3. Remove indoor coil bracket on left side. See Fig. 7.
4. Install sensor (Item 4) on bracket (Item 5) and tighten
thumb screw into hole in bracket. Fasten to indoor coil
bracket using (2) Item 6 screws. See Fig. 8 and 9.
5. Remove wire ties holding economizer wire harness. Place
indoor coil bracket back into slot in condensate pan as
shown in Fig. 9 and pass sensor wire into blower com-
partment. Leave excess wire in blower compartment for
later connection.
6. Run wire harness through U-slot while placing indoor
coil bracket back into position. See Fig. 10. Refasten with
previously removed screws and replace wire ties.
7. Reinstall filter rack and filters. See Fig. 6.
Step 6 — Connect Wire
1. Connect wire lead from controller to sensor lead and wire
tie excess wire to wire harness. See Fig. 5.
2. Reassemble unit.
Fig. 3 — Single Compressor
Fig. 4 — Dual Compressor
