Honeywell PUL6438S Manual De Usuario

3

62-0287—03

 

Tools required:

— Phillips #2 screwdriver - end-limit set screw adjustment

— 8 mm wrench - centering clamp

Before mounting the actuator onto the VAV box damper shaft, 

determine the following:

1. Determine the damper shaft diameter. It must be 

between 3/8 in. to 1/2 in. (10 to 13 mm).

2. Determine the length of the damper shaft. If the length 

of the VAV box damper shaft is less than 1-9/16 in. 

(40 mm), the actuator cannot be used.

3. Determine the direction the damper shaft rotates to 

open the damper (CW or CCW) (see Fig. 3). Typically, 

there is an etched line on the end of the damper shaft 

that indicates the position of the damper. In Fig. 2, the 

indicator shows the damper open in a CW direction.

4. Determine the damper full opening angle (45, 60, or 90 

degrees). In Fig. 2, the damper is open to its full open 

position of 90 degrees.

The unit is shipped with the actuator set to rotate open in the 

clockwise (CW) direction to a full 95 degrees. The extra 5 

degrees ensures a full opening range for a 90 degree damper. 

The installation procedure varies depending on the damper 

opening direction and angle:

1. If the damper rotates clockwise (CW) to open, and the 

angle of the damper open-to-closed is 90 degrees:

a. Manually open the damper fully (rotate clockwise). 

b. Using the Declutch button, rotate the universal shaft 

adapter fully clockwise. 

c. Mount the actuator to the VAV damper box and shaft. 

d. Tighten the two bolts on the centering clamp 

(8 mm wrench; 70.8–88.5 lb-in. [8–10 Nm] torque). 

When the actuator closes, the damper rotates CCW 

90 degrees to fully close. 

2. If the damper rotates clockwise (CW) to open, and the 

angle of the damper open-to-closed is 45 or 60 degrees:

a. Manually open the damper fully (rotate clockwise).

b. The actuator is shipped with the mechanical 

end-limits set at 95 degrees. Adjust the two 

mechanical end-limit set screws to provide the 

desired amount of rotation. Adjust the two set 

screws closer together to reduce the rotation travel.

c. Tighten the two mechanical end-limit screws 

(Phillips #2 screwdriver; (26.5–31 lb-in. [3.0–3.5 

Nm] torque).

d. Using the Declutch button, rotate the universal shaft 

adapter fully clockwise. 

e. Mount the actuator to the VAV damper box and shaft. 

f. Tighten the two bolts on the centering clamp 

(8 mm wrench; 70.8–88.5 lb-in. [8–10 Nm] torque).

g. When the actuator closes, the damper rotates CCW 

either 45 or 60 degrees to fully close.

3. If the damper rotates counterclockwise (CCW) to open, 

and the angle of the damper open-to-closed is 90 degrees:

a. Manually open the damper fully (rotate counter-

clockwise).

b. Using the Declutch button, rotate the universal shaft 

adapter fully counterclockwise. 

c. Mount the actuator to the damper box and shaft. 

d. Tighten the two bolts on the centering clamp (8 mm 

wrench; 70.8–88.5 lb-in. [8–10 Nm] torque). When 

the actuator closes, the damper rotates CW 

90 degrees to fully close.

4. If the damper rotates counterclockwise (CCW) to open, 

and the angle of the damper open-to-closed is 45 or 

60 degrees:

a. Manually open the damper fully (rotate counter-

clockwise).

b. The actuator is shipped with the mechanical 

end-limits set at 95 degrees. Adjust the two 

mechanical end-limit set screws to provide the 

desired amount of rotation. Adjust the two set 

screws closer together to reduce the rotation travel.

c. Tighten the two mechanical end-limit screws 

(Phillips #2 screwdriver; (26.5–31 lb-in. [3.0–3.5 

Nm] torque).

d. Using the Declutch button, rotate the universal shaft 

adapter fully counter-clockwise. 

e. Mount the actuator to the VAV damper box and shaft. 

f. Tighten the two bolts on the centering clamp 

(8 mm wrench; 70.8–88.5 lb-in. [8–10 Nm] torque).

g. When the actuator closes, the damper rotates CW 

either 45 or 60 degrees to fully close.

M23569

DAMPER SHAFT 

ROTATES 

CLOCKWISE 

TO OPEN

DAMPER

AIR 

FLOW

AIR 

FLOW

CW TO OPEN, CCW TO CLOSE

CCW TO OPEN, CW TO CLOSE

M2067B

TYPE A DAMPER

TYPE B DAMPER