Honeywell DAMPER LINKAGE THE QB05F,G,H,J DAMPER LINKAGE CONNECTS A MODULATOR IV MOTOR TO A STANDARD DAMPER OR SET OF DAMPERS TO PROVIDE CONTROL OF DUCT AIRFLOW, £1 QB0SF used to mount miter externally on duct. 7 (1605G used to mount motor inside duct. 4 QB0EH sad to mount motor externally or internally on uct. [1 Q608J used to mount miter externally on duct without mounting bracket, Ci Linkages include motor mounting bracket {except Q605.J), motor crank arm, damper crank arm (except OB0SGY, and ball joints.
IMPORTANT rss rest THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING TOLERANCES. THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. ALSO, THIS PRODUCT IS TESTED AND CALIBRATED UNDER CLOSELY CONTROLLED CONDITIONS, AND SOME MINOR DIFFERENCES IN PERFORMANCE CAN BE EXPECTED IF THOSE CONDITIONS ARE CHANGED.
Consists of: a. External motor mounting bracket. b. Motor crank arm. ©. Damper crank arms (3) for 1/2 inch shaft, d. Ball joists (4) for 5/16 inch push rod. for connecting a Modulator motor to a louver damper when the motor may be mounted directly on a wall or on the outside of the duct without using a mounting bracket. Consists of: a. Motor crank arm. b. Damper crank arm for 1/2 inch diameter shaft, ©.
ana (3) TIGHTEN THIS SETSCREW TO. HOLD BUSH ROD IN PLACE (@ suo puss TROUGH alcohol 'S 3 (® seem interrogator WASHER ADD 120 SECTION THROUGH CRANK ARM = SLOT AND FASTEN iN PLACE WITH WASHER AND NUT. FIG. 4—DIMENSIONS IN ins. Jmm IN BRACKETS] AND INSTALLATION OF 27518 BALL JOINTS FURNISHED WITH ALL LINKAGES. WHEN INSTALLING THIS PRODUCT... 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2.
NOTE: Refer to the applicable Modulator motor instructions for complete information on motor installation; including location, positioning, and electrical wiring. GENERAL CONSIDERATIONS AND PRECAUTIONS 1. The motor crank arm must be permitted 10 complete its full stroke, 2. The motor must be at its electrical limit of travel when the damper is full open or closed. 3. Teo short a push rod is difficult 10 adjust, 4.Too long a push rod is not rigid, resulting in poor damper response. 5.
STEP With the damper positioned at the paint it would be if the motor was in its mid stroke position, slide the motor crank. arm off the motor shaft. Keeping # in line with the shaft, rotate the crank arm around the motor shaft axis until the motor crank arm is nearly perpendicular 10 an imaginary Lina between the motor shaft and the damper drive blade (see Fig. 10). With the damper sill at the mid stroke position, tighten setscrews on the ball joints just enough to prevent slippage of the push rod.
RIGHT ANGLE FORMED BY CRANK ARM AND IMAGINARY LINE BETWEEN MOTOR SHAFT AND DAMPER DRIVE BLADE SHAFT, STEP 1 Place the crank arm assembly on the motor shaft. Tighten the motor crank arm bolt finger tight, as further adjustments will be required. Ses Fig. 11. NO, 260258 FOR 3/8 IN. DIA. DAMPER SHAFTS. NO, 260266 FOR 1/2 IN. DIA. DAMPER SHAFTS. NO. 271748 FOR 7/18 IN. DIA. DAMPER SHAFTS.
LINKAGE ADJUSTMENT For two-position control, the ball joint should be set at the degree mark of the damper crank arm soothe damper will be either fully open or fully closed, depending on the demand of the controllable. In modulating installations, the damper should cenotaph moral than 80 degrees, which allows 96 percent of the maximum air volume to pass through the damper. Any additional opening of the damper will have lite or no effect. Fig.
NOTE: For purposes of reference, clockwise / rotation of the motor, as seen farm the power end, is considered the opening stroke. Whether this opens or closes the damper depends on the arrangement of the linkages. /A\ MOTOR VIEWED FROM AUXILIARY END, LINKAGE CONNECTED TO POWER END ss FIG. 13—MODUTROL MOTOR MOUNTED DEXTER. BALLY ON THE DUCT TO CONTROL ONE DAMPER. FIG. 14--MODULATOR MOTOR MOUNTED DIRECTLY ON THE DUCT (WITHOUT A MOUNTING BRACKET) TO CONTROL ONE DAMPER.
“ RT pa Warmer TN DRIVE PUSH ROD EAR RIVE EAR PUSHCHAIR SL wo 2 BALL JOINT" Moor Can ARs LF BALL JOINT x UU MOTOR CRANK ARM \rotor VIEWED FROM AUXILIARY END. LINKAGE motor VIEWED FROM AUXILIARY END, LINKAGE CONNECTED TO POWER END. METH CONNECTED TO POWER END. MET FIG. OPERATION (WITHOUT FIG. OPERATION (WITHOUT ADAPTER ARM) OF A NORMALLY CLOSED ADAPTER ARM) OF A NORMALLY OPEN DAMPER. DAMPER. LEFT HAND DRIVE EAR {00H SUPER TRADE LINE DAMPER LINEAGE ONLY. MOTOR CRANK ARM MOTOR SHAFT /\ MOTOR SHOWN AT MID STROK
RIGHT HAND DRIVE EAR MOTOR CRANK ARM, MOTOR SHAFT /A\ MOTOR SHOWN AT MID STROKE POSITION. FIG. OPERATION OF A NORMALLY CLOSED DAMPER, POSITION ADAPTER ARM SAME AS CRANK ARM ABOVE.
220767A ADAPTER ASSEMBLY FASTEN BALL JOINTS. AT SELECTED POINTS ALONG SLOTS. SEE DAMPER ARM NOTE rime BOLT ADAPTER TO ROTOR CRANK ARM USING THESE TWO HOLES. 2007675 ADAPTER 2 wy derisiveness para: NORMALLY } CLOSED NORMALLY OPEN RETURN AIR DAMPER rems FIG. 21—MOTOR MOUNTED EXTERNALLY ON THE DUCT TO CONTROL TWO DAMPERS ACTING AT RIGHT ANGLES.
