2T22 and 3T22: Difference between revisions
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|manual= http://www.civildefensemuseum.com/sirens/manuals/255A152H-2T22-3T22.pdf | |manual= http://www.civildefensemuseum.com/sirens/manuals/255A152H-2T22-3T22.pdf | ||
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== General == | |||
The 2T22 was an omnidirectional siren produced by [[Federal Signal Corporation]]. The design features a single motor in the middle with a twelve-port rotor/stator set on top and a 10-port set on bottom. Both rotors measured 14 inches in diameter, and are identical to rotors used on the model 3 and 2001. A similar model featuring coding dampers was sold as the 3T22. | The 2T22 was an omnidirectional siren produced by [[Federal Signal Corporation]]. The design features a single motor in the middle with a twelve-port rotor/stator set on top and a 10-port set on bottom. Both rotors measured 14 inches in diameter, and are identical to rotors used on the model 3 and 2001. A similar model featuring coding dampers was sold as the 3T22. | ||
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A fully assembled siren weighs close to 700 pounds, including the pole mount bracket. | A fully assembled siren weighs close to 700 pounds, including the pole mount bracket. | ||
== Difference == | |||
The difference between the 2T22 and 3T22 is the fact a 2T22 does not support hi-lo(fire) signals, so they do not have solenoid boxes, however, 3T22's have solenoid boxes by the top intake and bottom set of horns. | |||
[[Category:Federal Signal Corporation]][[Category:Omnidirectional Sirens]][[Category:Dual Toned Sirens]][[Category:Sirens]][[Category:Electromechanical Sirens]] | [[Category:Federal Signal Corporation]][[Category:Omnidirectional Sirens]][[Category:Dual Toned Sirens]][[Category:Sirens]][[Category:Electromechanical Sirens]] | ||
Revision as of 23:57, 13 August 2017
| 2T22 and 3T22 | |
 | |
| Company | Federal Signal Corporation |
|---|---|
| Type | Electromechanical |
| Sound output | 113 dBc at 100 feet |
| Horsepower | 7.5 - 10 |
| Documentation | Manual |
General
The 2T22 was an omnidirectional siren produced by Federal Signal Corporation. The design features a single motor in the middle with a twelve-port rotor/stator set on top and a 10-port set on bottom. Both rotors measured 14 inches in diameter, and are identical to rotors used on the model 3 and 2001. A similar model featuring coding dampers was sold as the 3T22.
Both models were available in single and three phase versions. Three phase models used either a GE (early) or Marathon 10 horsepower motor. The only motor used on the single phase model was the Northwestern Electric 7 1/2 horsepower repulsion-induction motor.
A fully assembled siren weighs close to 700 pounds, including the pole mount bracket.
Difference
The difference between the 2T22 and 3T22 is the fact a 2T22 does not support hi-lo(fire) signals, so they do not have solenoid boxes, however, 3T22's have solenoid boxes by the top intake and bottom set of horns.