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Page 5

Outdoor Air Hood

Align dimples to position hood parts and secure in place

with #10 self-drilling screws.

1- Use the locating dimples to install the right hood side

onto the unit. Install the left side in the same manner.
See figure 10.

Note - Incorrectly positioning the hood sides can result in
leaks or a hood that will not assemble properly.

2- Install the bottom filter bracket between the left and

right hood sides. Secure in place with #10 screws.
See figure 10 and 11.

3- Attach hood top onto the left and right hood sides.

Secure with #10 screws.

IMPORTANT - Do not tighten screws completely.

4- Align holes in the top flange of the hood top with the

locating dimples provided on the unit. Secure with
#10 self-drilling screws. See figure 10.

5- Secure the hood top to the left and right hood sides.

Tighten the previously-installed screws.

FIGURE 11

HOOD SIDE VIEW

ALIGN VERTICAL

HOLES ON BRACKET

WITH VERTICAL HOLES

ON SIDE OF HOOD

BOTTOM FILTER

BRACKET

HOOD TOP

FILTER

UNIT

FILTER

FILTER

HOOD

TOP

FRONT FILTER

BRACKET

3

CAULK HOOD TOP

TO UNIT TO SEAL

WATERTIGHT

8

7- Install front filter bracket on the left side of the hood.

Secure with three screws. See figure 11 and 12.

8- Insert filter into the bottom filter bracket. Slide filter to the

left into the shorter front filter bracket. See figure 12.

9- Insert the second filter into the bottom filter bracket.

Install the longer front filter bracket to support the
front of filter. Secure using three screws. See figure
9 and 13.

BOTTOM FILTER

BRACKET

FRONT FILTER

BRACKET

(SHORT)

FIGURE 12

INSTALL FIRST FILTER

FILTER

BOTTOM

FILTER

BRACKET

FRONT FILTER

BRACKET (LONG)

FIGURE 13

INSTALL SECOND FILTER

FILTER

Summary of Contents for C1DAMP20C-1

Page 1: ...act with sharp sheet metal edges can result in personal in jury Take care while handling this equipment and wear gloves and protective clothing Application Optional outdoor air dampers provide fresh o...

Page 2: ...ng where the cover plate was secured See figure 5 Secure with retained screws 6 From inside the filter access panel remove the unit jumper plug P3 from unit jack J3 and discard See figure 6 7 Units eq...

Page 3: ...ON OUTDOOR AIR DAMPER ASSEMBLY COVER PLATE OPENING FIGURE 6 DISCARD P3 JUMPER PLUG J3 UNIT JACK REMOVE AND DISCARD P3 JUMPER PLUG FIGURE 7 WIRING UNITS EQUIPPED WITH A UNIT CONTROLLER CONNECT P4 MOTOR...

Page 4: ...e two screws securing dampers in place for shipping See figure 9 6 To adjust manual damper outdoor air amount loosen the slots screws and slide dampers to the desired position Tighten the screws to se...

Page 5: ...s See figure 10 5 Secure the hood top to the left and right hood sides Tighten the previously installed screws FIGURE 11 HOOD SIDE VIEW ALIGN VERTICAL HOLES ON BRACKET WITH VERTICAL HOLES ON SIDE OF H...

Page 6: ...mperature Mark that point on the top line of chart 1 and label point C 70 F 21 C shown 4 Draw a straight line between points A and B 5 Draw a vertical line through point C 6 Draw a horizontal line whe...

Page 7: ...enu paths to set the low speed minimum damper position M3 Unit Controller SETUP TEST BALANCE DAMPER MIN DAMPER POSITION BLOWER ON LOW M2 Unit Controller SETTINGS SETPOINTS DAMPER MIN OCP BLOWER LOW 5...

Page 8: ...eed pressure differential in table 2 3 Read the damper percentage open Units Equipped With Unit Controller The damper percentage open was entered into the Unit Controller Units Not Equipped With Unit...

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