lev-co 13-12, User Manual

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All system types are also available to be applied to Type 3 exhaust systems in an identical manner, al-
though this is not documented herein.
7.1 Mechanical Installation
Mechanical installation for a sequenced solenoid system is similar to that of a normal type 2 or 3 system
except for the pressure tubing connection. Since a 24 VAC or 120VAC source is required to the drive
solenoid timers or the sequencer, this is also used to drive a Sensocon pressure transducer/gauge which
combines the two functions usually performed by separate elements in a standard type 2 system. There
is thus no tee adapter and only a single barbed hose connection to the LOW connector on the back of
the pressure sensor. See below and the Sensocon A1/A2 Installation & Operation Manual. The HIGH
connection is left unconnected to sense ambient atmospheric pressure.
Figure 10 - Pressure Sensor Connections
7.2 Electrical Installation
This is essentially identical to the standard type 2 or 3 system described above, with the exception of the
additional wiring to the solenoids.
Since this wiring must accommodate high-energy short-duration
pulses, a minimum of #16AWG wire should be used for this function, and distances should be kept as
short as possible.