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Can anyone explain to me how these pressure switches work…

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Hi, can anyone explain to...
Hi, can anyone explain to me how these pressure switches work and where would they be put for optimum use? 836-C1, 836-C2, 836-C3, 836-C4, 836-C5.
Submitted: 9 months ago.Category: HVAC
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Answered in 3 days by:
11/21/2017
HVAC Technician: Chad DeYoung,
 replied 9 months ago
Chad DeYoung
Category: HVAC
Satisfied Customers: 11
Experience: Owner operator at Air Control
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Pressure controls can be used to either control or monitor a
machine or process. pressure is controlled within predetermined high and low
values.
pressure is monitored between a high and low value, signaling when
a preset limit has been exceeded.

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