7
Since 1965
MicroMetl
Step 20: Connect the pink and violet wires from the 4-wire
9962-0407-SAOEXT harness to the pink and violet terminals in the
wire bundle in the indoor blower section. See Figures 16 and 23.
See note .
Figure 16 – Connect Pink and Violet Wires in
Indoor Blower Section
Step 21: If using dierential return sensor or DCV sensor install it
now. See installation details later in the instructions, and the wiring
diagram for further information.
Step 22: Assemble the economizer hood by screwing the hood
divider to the hood subassembly (top and sides). See Figure 17.
Note on the ECD-SRT05CA-D2*H there is also a center hood lter
divider – screw in place. See Figure 18.
Indoor
Blower
Pink and
Violet Wires From
9962-0407-SAOEXT
Harness
See note
For 48/50LC 07-12 Instructions, see pages 10-12
Figure 17 – Economizer Hood Assembly
ECONOMIZER P/N A B C D SHIP WT.
ECD-SRT12CA-D2*H 30.37” 17.43” 19.05” 29.5” 55 lb
ECD-SRT34CA-D2*H 40.37” 22.28” 24.48” 36.27” 80lb
ECD-SRT05CA-D2*H 52.92” 27.03” 33.41” 49.92” 98lb
NOTE: The ECD-SRT05CA-D2*H hood has 2 aluminum lters and a
hood lter divider that installs between the lters.
A
B
C
Hood Top and
Side Assembly
Hood Divider
D
Figure 18 – Filter Divider on
ECD-SRT05CA-D2*H Hood
Step 23: Install aluminum lter(s) in economizer hood. Clips at top
of hood will hold lters in place. See Figure 19.
Hood Filter
Divider
Figure 19 – Fully Assembled Hood
Hood Top
Filter Clip
Outside Air
Cleanable
Aluminum Filter
Barometric
Hood
Divider
Step 24: Install economizer hood over economizer. Screw hood in
place through pre-punched holes. Reinstall the unit’s lter access
door. See Figure 20. Re-install the Indoor blower access panel.
See Figure 6.
A
A
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