Siemens 331-2856, 332-2856 331-3 Technical Instructions Download Page 11 | Manualshive

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POWERS™ Controls No. 6 Pneumatic Damper Actuator

Technical Instructions

Document No. 155-029P25

December 3, 2004

Dimensions

Figure 13. Extended Shaft Remote Mounting with Travel Stops.

Dimensions in Inches (Millimeters).

Offset Mounting
Bracket

This bracket is
designed to offset
Universal Mounting
Plate 331-623 or
331-623A from the
ductwork.

NOTE:

Depending on

the application, two
brackets may be
required to support
the actuator and
universal mounting
plate.

Figure 14. Offset Mounting Bracket 333-176.

Dimensions in Inches (Millimeters).

Siemens Building Technologies, Inc.

Page 11

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Summary of Contents for 331-2856, 332-2856 331-3

Page 1: ...e resistant silicone rubber rolling diaphragm Pivot mounting for extended shaft or frame mounting Positioning relay optional Adjustable forward travel stops optional Three spring ranges for sequencing with other control devices Product Numbers See Table 1 Application The No 6 Pneumatic Damper Actuator controls outdoor return air exhaust face and bypass and fan discharge dampers It is recommended f...

Page 2: ...es 3 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 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 require...

Page 3: ...2 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 61...

Page 4: ...uggested 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 T...

Page 5: ...teel 8 Upper Housing 1 Aluminum 9 Helical Compression Spring 1 331 091 3 to 13 psi 21 to 90 kPa 331 208 3 to 8 psi 21 to 55 kPa 331 094 8 to 13 psi 55 to 90 kPa 10 Piston Plate and Stem Assembly 1 Aluminum SS 11 Retaining C ring 1 Steel Figure 1 Standard Actuator 12 333 197 Stop Kit Optional Steel Extended Shaft Mounting Pivot Actuator 1 Order one of the following and see Table 4 for parts lists A...

Page 6: ... 1 Zinc Plated Steel 8 331 807 Hitch Pin 1 Zinc Plated Steel 9 331 941 Crank Assembly 1 10 331 623 Actuator Mounting Plate 1 Steel 034 283 Mounting Screws 4 Steel Figure 2 Extended Shaft Frame Mounting Actuator Assembly Figure 3 Remote Mounting Kit 331 618 with 331 2856 Actuator Mounted Frame Mounting Type A Order one each of the following See Table 4 for parts lists Actuator and Clevis 331 2856 3...

Page 7: ...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 rod is parallel to the bracket then tighten the crank setscrews 3 lnstall 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 i...

Page 8: ... the steps in One Section Damper 2 Attach the Damper Blade Clip to the damper blade in the second damper section Repeat Step 2 in One Section Damper The push rod will connect to the extra crank on the drive shaft Figure 6 Two section Damper Figure 7 Actuator and Clevis Assembly 331 2857 Typical Attached to Frame Mounting Kit 752 Dimensions in Inches Millimeters Page 8 Siemens Building Technologies...

Page 9: ...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 Fig...

Page 10: ...sed For 1 No 6 Actuator extended shaft mounting 2 Not used 3 No 4 Actuator extended shaft No 6 Actuator frame mounting NC 4 No 6 Actuator frame mounting NO 5 No 4 Actuator frame mounting NC 6 No 4 Actuator frame mounting NO Figure 12 Actuator Mounting Plate 331 623A Pivot Shaft Locations Table 6 Pivot Post Hole Identification Hole Used For 1 No 6 Actuator extended shaft mounting 2 Not used No 4 Ac...

Page 11: ...ensions in Inches Millimeters Offset Mounting Bracket This bracket is designed to offset Universal Mounting Plate 331 623 or 331 623A from the ductwork NOTE Depending on the application two brackets may be required to support the actuator and universal mounting plate Figure 14 Offset Mounting Bracket 333 176 Dimensions in Inches Millimeters Siemens Building Technologies Inc Page 11 ...

Page 12: ...y names mentioned herein may be the trademarks of their respective owners 2004 Siemens Building Technologies Inc Siemens Building Technologies Inc 1000 Deerfield Parkway Your feedback is important to us If you have comments about this document please send Dimensions Continued Figure 15 Actuator Mounting Plate 331 623 Dimensions in Inches Millimeters Figure 16 No 6 Actuator with the RL 147 Position...

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