Siemens 332-2856 AP 331-3 User's Manual
Contents
1. 22 8 202 22 8 202 55 90 kPa With maximum hysteresis of 2 5 psi 17 2 kPa 90 rotation 7 7 22 8 Page 4 Siemens Building Technologies Inc POWERS Controls No 6 Pneumatic Damper Actuator Technical Instructions Document No 155 029P25 December 3 2004 Operation The air tubing from a controlling instrument is connected to the actuator s upper housing With no control pressure to the actuator the compression spring forces the spring seat Standard Actuator and actuator shaft toward the upper housing but is limited by the E ring As the control Figure 1 pressure increases the spring compression is overcome and the actuator shaft gradually moves outward Conversely as control pressure decreases the spring returns the shaft to the position at which the air pressure on the diaphragm balances the spring tension For each value of control pressure there is a corresponding position of the shaft Table 3 Standard Actuator Components item PartNo Description Qty Material os Seine Retainer Pa Siem Gage assembiy 1 5 towertowsig 1 333 572 Diaphragm pkg of 5 599 00413 5 16 in 18 x 1 Large Hex Cap Screw Helical Compression Spring LES SSS j LERA Vile NN AP0070R2 Figure 1 Standard Actuator Assembly SS o gt eem a 2 or Stop xit Optonay Es ED Ea A Pa Extended Shaft 1 Order one of the following and see Table2. Mounting Type B Dimensions in Inches Millimeters 11 32 9 DIA 3 HOLES APOO77R3 a a a 3 If the damper frame is aluminum light gauge sheet metal or an unusual shape bolt a 3 16 inch 5 mm thick flat piece of steel to the frame Then weld the mounting lug to it 4 Attach Rocker 333 034 to blade in proper position for normally open or normally closed damper using 2 nuts 041 230K and 2 screws 030 510J See Figure 9 and Figure 10 5 Attach the mounting plate to the mounting lug as follows a Normally Open damper attach the plate to the lug Place the pivot post in Hole 4 See Figure 9 b Normally Closed damper attach the plate to the lug Place the pivot post in Hole 3 See Figure 10 6 Fasten the clevis to the rocker Discard the crank and other parts not used 7 The actuator mounting plate has a tendency to pivot at the point where the lug is welded to the damper frame when the actuator strokes It is recommended that some means be devised in the field to prevent this from happening A threaded rod attached to the mounting plate and duct wall will normally work Siemens Building Technologies Inc Page 9 Technical Instructions Document No 155 029P25 December 3 2004 Frame Mounting Type B Continued Figure 9 Frame Mounting Normally Open Damper Actuator Mounting DAMPER SHAFT HOLE 3 4 19 DIA a 5 1 2 140 Eo 214 10 1 4 260 13 1 2 343 i NOT
3. mm diameter Accessories Selectable radius 331 941 5 8 inch 16 mm diameter 333 182 3 4 inch 19 mm diameter 333 183 1 inch 25 mm diameter 333 181 Cast iron crank with set screws 333 078 Linkage kit 4 inch 102 mm link and crank 331 958 Universal mounting plate 3 4 inch shaft 331 623 1 inch shaft use with 333 194 331 623A Flange bearing 1 2 inch 13 mm 331 862 for 331 623 Universal Mounting Plate Right angle mounting plate 333 208 Remote mounting kit extended shaft Figure 3 331 618 Positioning relay 147 2000 Positioning relay mounting kit 147 276 Frame mounting kits One section damper Figure 5 751 Two section damper Figure 6 752 Order frame mounting kits and damper blade clip kit from Arrow United Industries Frame mounting lug 331 569 Mounting lug screws three required for frame mounting lug 034 123K Offset Mounting Bracket Figure 14 333 176 Travel Stop Kit for model 3 and 4 actuators only 333 197 Damper Blade Rocker Arm 333 034 Screws two 030 510J Nuts two 041 230J Service Kits Silicone diaphragms package of five 333 572 Siemens Building Technologies Inc Page 3 Technical Instructions POWERS Controls No 6 Pneumatic Damper Actuator Document No 155 029P25 December 3 2004 Actuator Sizing The quantity of actuators required depends on several torque factors To determine the quantity of actuators required for the installation 1 Obtain damper torque ratings ft Ib ft from th
4. with Travel Stops Dimensions in Inches Millimeters Offset Mounting Bracket an 4 PLACES N This bracket is ae ine asia designed to offset Spe a Universal Mounting ce ee Plate 331 623 or 331 623A from the 6 4 ductwork 6 PLACES NOTE Depending on the application two brackets may be required to support the actuator and universal mounting plate 5 13 16 Ta a Figure 14 Offset Mounting Bracket 333 176 Dimensions in Inches Millimeters APOO4ERI Siemens Building Technologies Inc Page 11 Technical Instructions Document No 155 029P25 December 3 2004 Dimensions Continued 9 32 7 DIA 5 16 18 THR 11 HOLES 3 HOLES 1 2 20 THD 3 4 19 DIA gl 6 HOLES 64 o o o 3 1 2 gt o 6 89 4418 en 20 13 16 AP0059R2 529 Figure 15 Actuator Mounting Plate 331 623 Dimensions in Inches Millimeters POWERS Controls No 6 Pneumatic Damper Actuator AP0137R1 5 444 139 MAXIMUM CLEARANCE RADIUS Figure 16 No 6 Actuator with the RL 147 Positioning Relay Mounting Dimensions in Inches Millimeters Information in this publication is based on current specifications The company reserves the right to make changes in specifications and models as design improvements are introduced POWERS is a trademark of Siemens Building Technologies Inc Other product or company names mentioned
5. 4 for parts lists Mounting Pivot Actuator 331 3011 331 3012 331 3013 or 332 3011 Actuator 2 Slip the 3 4 inch 19 mm diameter hole in the mounting plate over the damper shaft 3 Slip the crank over the damper shaft With the actuator assembly to the left of the damper shaft an increase in actuator pressure rotates the damper blade CW when the crank is above the damper shaft or CCW when the crank is below the damper shaft See Figure 2 With the actuator assembly to the right of the damper shaft an increase in actuator pressure rotates the damper blade CCW when the crank is above the damper shaft or CW when the crank is below the damper shaft 4 Position the mounting plate and attach it to the duct with four screws 5 When the actuator cannot be directly mounted drive the extended damper shaft using the Remote Mounting Kit 331 618 and Actuator 331 2856 See Figure 3 Siemens Building Technologies Inc Page 5 Technical Instructions POWERS Controls No 6 Pneumatic Damper Actuator Document No 155 029P25 December 3 2004 Table 4 Extended Shaft Frame Mounting Assemblies Components Item PartNo Description Qty ___ Materia e sar cew 1 Ze Petes Se e orso mienen 1 Zne Pitsa Ste o sron cenam 1 oses monina Saens a see N ea 2 a lt Figure 2 Extended Shaft Frame Mounting Actuator Assembly MOUNTING BEARING SUPPORT AP0039R1 PIVOT POST
6. CRANK SHAFT Figure 3 Remote Mounting Kit 331 618 with 331 2856 Actuator Mounted Order one each of the following See Table 4 for parts lists Actuator and Clevis 331 2856 331 2857 or 331 2858 Frame Mounting Kit 751 for one section damper or 752 for two section damper All frame mounting kits must be ordered from Arrow United Industries Frame Mounting Type A Page 6 Siemens Building Technologies Inc POWERS Controls No 6 Pneumatic Damper Actuator Technical Instructions Document No 155 029P25 December 3 2004 One Section Damper 1 Attach the damper mounting bracket to the lower right hand corner or upper Kit 751 left hand corner if necessary of the damper section with the six screws provided For Arrow United Industries 1770 dampers add the shim provided between the See Figure 4 and bracket and bottom of the frame Have the damper manufacturer drill the holes in the Figure 5 damper frame Figure 5 2 Have the damper manufacturer drill the holes in the damper blade for the blade clips Figure 4 Use the same clip location for both normally open and normally closed dampers Attach the damper blade clip to the damper blade Figure 4 Put the damper in its normal position open or closed Connect the push rod to the trunnion in the blade clip and tighten the setscrew Connect the other end of the push rod to the crank on the drive shaft and tighten the trunnion setscrew on the push rod Position the crank so the push ro
7. Repeat Step 2 in One Section Damper The push rod will connect to the extra crank on the drive shaft DAMPER BLADE CLIPS ACTUATOR AND CLEVIS ASSEMBLY APOO64R3 Figure 6 Two section Damper ACTUATOR SUPPORT BRACKET ACTUATOR AND CLEVIS ASSEMBLY 331 2857 TYP CRANK Bq DRIVE SHAFT Og HITCH PIN KEY HOLE SLOTS FOR TRAVEL STOP RODS DAMPER MOUNTING BRACKET 5 16 8 H x 5 8 16 W SLOT 6 THUS APO073R2 Figure 7 Actuator and Clevis Assembly 331 2857 Typical Attached to Frame Mounting Kit 752 Dimensions in Inches Millimeters Siemens Building Technologies Inc POWERS Controls No 6 Pneumatic Damper Actuator Technical Instructions Document No 155 029P25 December 3 2004 Frame Mounting 1 Order one each of the following Type B Actuator assembly 331 3011 331 3012 331 3013 or 332 3011 Mounting Lug 331 569 See Figure 8 through 2 Weld the mounting lug parallel and 5 16 inch 8 mm from the inside edge of the Figure 10 damper frame and perpendicular to it See Figure 8 Weld the lug along both sides The lug should be as close as possible to the corner of the damper frame to minimize deflection The damper manufacturer should weld the lug IMPORTANT Damper frame channel iron should be 3 16 5mm thick for rigidity 8 12 216 Loi y 7 32 6 DIA N C 2HOLES 3 1 2 k ACTUATOR MOUNTING 89 _ PLATE i 6 1 2 MOUNTING LUG 165 8 Figure 8 Frame
8. SIEMENS Technical Instructions Document No 155 029P25 AP 331 3 December 3 2004 POWERS Controls No 6 Pneumatic Damper Actuator 331 2793 Actuator Description Features Product Numbers Application 331 2857 Actuator 331 3012 Extended Shaft and Frame with Clevis and Pin Mounting The POWERS Controls No 6 Pneumatic Damper Actuator is a heavy duty rolling diaphragm spring return actuator designed to drive large dampers centrifugal refrigeration inlet vanes and other applications requiring a large effective diaphragm area and long stroke e All metal body construction e Replaceable ozone resistant silicone rubber rolling diaphragm e Pivot mounting for extended shaft or frame mounting e Positioning relay optional e Adjustable forward travel stops optional e Three spring ranges for sequencing with other control devices See Table 1 The No 6 Pneumatic Damper Actuator controls outdoor return air exhaust face and bypass and fan discharge dampers It is recommended for heavy duty applications using multi section dampers where either unison or sequence operation is required Certain actuators in Table 1 are UL Recognized Components for fire smoke applications under category EMKU2 This category covers 8 pneumatic damper actuators used on fire dampers and leakage rated dampers Siemens Building Technologies Inc Technical Instructions Document No 155 029P25 December 3 2004 Ac
9. USED APO086R2 17 1 2 445 _____ _ Figure 11 Actuator Mounting Plate 331 623 Pivot Shaft Locations Dimensions in Inches Millimeters DAMPER SHAFT HOLE 1 1 8 28 DIA o o o o o Os O Os Os 331 623A o 2 o o AP0255R1 Figure 12 Actuator Mounting Plate 331 623A Pivot Shaft Locations Page 10 POWERS Controls No 6 Pneumatic Damper Actuator AP0033R1 Figure 10 Frame Mounting Normally Closed Damper Table 5 Mounting Plate Hole Identification Hole ____UsedFor__ 1 No 6 Actuator extended shaft mounting No 4 Actuator extended shaft No 6 Actuator frame mounting NC No 6 Actuator frame mounting NO No 4 Actuator frame mounting NC 6 No 4 Actuator frame mounting NO Table 6 Pivot Post Hole Identification No 6 Actuator extended shaft mounting No 4 Actuator extended shaft No 6 Actuator frame mounting NC No 6 Actuator frame mounting NO No 4 Actuator frame mounting NC 6 No 4 Actuator frame mounting NO Siemens Building Technologies Inc POWERS Controls No 6 Pneumatic Damper Actuator Technical Instructions Document No 155 029P25 December 3 2004 Dimensions OPTIONAL STOP RODS A 38 24 THREAD gt 7 1 8 j 181 253 64 DIA 13 2 HOLES ie IEn 11 7 32 aan bee 2 9 32 143 285 58 L 4 8 NPT AP0O75R3 Figure 13 Extended Shaft Remote Mounting
10. d is parallel to the bracket then tighten the crank setscrews 3 Install the actuator in the actuator support bracket using the pivot shaft and hitch pins The pivot shaft should be in the holes about 17 1 2 inch 445 mm from the drive shaft The actuator support bracket can also mount in the vertical position for installations where space is limited DAMPER BLADE CLIP 2 TRUNNION OA TRUNNION BEARING TRUNNION WASHER AA AE PUSH ROD A KL EL a UMM b AA 121MM Figure 4 Damper Blade Clip APO014R2 4 Position the crank driven by the actuator as follows a Normally open damper the crank is above the drive shaft b Normally closed damper the crank is below the drive shaft 5 Connect the actuator clevis to the crank Put the damper in its normal position open or closed Stroke the actuator 1 4 inch 6 mm with a hand pump then tighten the crank setscrews This will ensure tight damper closure DAMPER BLADE CLIP FRAME MOUNTING ACTUATOR AND CLEVIS ASSEMBLY AP0037R3 Figure 5 One section Damper Siemens Building Technologies Inc Page 7 Technical Instructions Document No 155 029P25 December 3 2004 Frame Mounting Type A Continued Two Section Damper Kit 752 See Figure 6 and Figure 7 Page 8 1 POWERS Controls No 6 Pneumatic Damper Actuator Follow the steps in One Section Damper Attach the Damper Blade Clip to the damper blade in the second damper section
11. e damper manufacturer 2 Determine the area of the damper 3 Calculate the total torque required to move the damper Total Torque Torque Rating x Damper Area 4 Calculate the total quantity of actuators required Number of _ Total Damper Torque Required Actuators SF x Actuator Torque see Table 2 1 Safety Factor When calculating the number of actuators required a safety factor should be included for unaccountable variables such as slight misalignments aging of the damper etc A suggested safety factor is 0 80 or 80 of the rated torque See AB 300 Damper Actuator Sizing and Selection Application Bulletin in the HVAC Systems Controls Reference Data 125 1853 for additional sizing information See TB 181 Powers Controls Maximum Thrust Ratings of Pneumatic Damper Actuators Technical Bulletin 155 219P25 for additional torque requirements Table 2 Thrust and Torque Rating Maximum Thrust Ib N Torque Rating Ib in Nm Nominal Full Stroke Forward Spring Gradual 2 Position Operation Spring Return Operation or Positioner Range 15psi 18 psi 25 psi No Stroke 15 psi 18 psi 25 psi 103 kPa 124 kPa 172 kPa 0 psi 0 kPa 103 kPa 124 kPa 172 kPa 3 8 psi 125 556 179 796 304 54 240 50 5 6 75 75 5 8 5 21 55 kPa 1352 3 13 psi 36 160 89 396 214 952 54 240 50 5 6 75 75 8 5 21 90 kPa 160 50 5 6 8 5 8 5 8 13 psi 36 160 89 396 214 952 144 640 202
12. g Stem Diaphragm Spring Bearing Maximum air pressure Nominal spring ranges Ambient temperature range Operation Air connection Type of mounting Thrust and torque rating Dimensions Shipping Weight 4 inch 102 mm Aluminum Type 416 stainless steel Ozone resistant silicone rubber Steel Bronze oilite 30 psig 210 kPa 3 to 8 psi 21 to 55 kPa 3 to 13 psi 21 to 90 kPa 8 to 13 psi 55 to 90 kPa 20 F to 200 F 29 C to 93 C 1 8 inch NPT Pivot universal extended shaft or frame mount See Table 2 See Figure 13 through Figure 16 9 Ib 4 08 kg Complies with UL555 and UL555S Page 2 Agency Approvals Siemens Building Technologies Inc POWERS Controls No 6 Pneumatic Damper Actuator Technical Instructions Document No 155 029P25 December 3 2004 Damper shaft extension kits 1 2 inch 13 mm diameter 2 1 4 inch 57 mm rod 331 631 See TB 128 POWERS Controls Damper Shaft Extension Technical Bulletin 155 205P25 1 2 inch 13 mm diameter 9 inch 229 mm long hollow rod 333 184 1 2 inch 13 mm diameter 9 inch 229 mm long rod 333 042 1 inch 25 mm diameter 11 5 8 inch 295 mm long Ruskin 333 194 Damper shaft extension kit adapter 3 8 inch 10 mm diameter 331 632 for use with Damper Shaft Extension Kit 333 042 Actuator shaft extensions 10 1 8 inch 257 mm long 331 434A Adapter kit for 1 2 inch NPT pipe 333 030 Cranks damper shaft 3 8 inch 10 mm 1 2 inch 13
13. herein may be the trademarks of their respective owners 2004 Siemens Building Technologies Inc Siemens Building Technologies Inc 1000 Deerfield Parkway Buffalo Grove IL 60089 4513 Your feedback is important to us If you have comments about this document please send them to technical editor siemens com Document No 155 029P25 Country or Origin US Page 12 U S A
14. tuator integral pivot Actuator integral pivot and forward travel stops Figure Description Mounting Style POWERS Controls No 6 Pneumatic Damper Actuator Table 1 Product Numbers for No 6 Pneumatic Damper Actuators Product Numbers Nominal Spring Range 3 8 psi 3 13 psi 8 13 psi 21 55 kPa 21 90 kPa 55 90 kPa Pivot Ba 2793 331 2794 331 3060 Actuator with clevis for frame mounting Figure 2 or _ Pivot 331 2857 331 2858 331 2856 remote extended shaft mounting Figure 3 Actuator with clevis and positioning relay Figure 16 Pivot CUCU sL oO 332 2856 Actuator integral pivot with pivot post Actuator integral pivot with pivot post and positioning relay Figure 16 UL Recognized Components for Fire Smoke Applications Also order frame mounting kit accessories Mounted on plate for extended shaft with clevis and crank for 3 8 inch 10 mm 7 16 inch 11 mm or 1 2 inch 13 mm diameter shaft Parts for frame mounting blade drive included with kit Extended Shaft with Positioning Relay Extended Shaft 331 3012 331 3013 331 3011 NOTE When the actuator is ordered with universal mounting the mounting plate pivot post and hardware clevis damper crank rocker arm and all screws nuts are included Order other frame mounting accessories as required if not supplied by damper manufacturer 17 9 inches 115 cm Effective diaphragm area Specifications Stroke Housin
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