BeaconMedaes MEGA 2 Installation, Operation And Maintenance Instructions page 20

Wiring Schematic 8: Remote Pressure / Vacuum Switches
P/N 6-129020-01
(Dual switch for medical gases with 50 PSI nominal pressure)
seven - approx. 18" free leads
through 3/4" conduit connection
adjustment
high dials
low
1/4 NPT female port
P/N 6-129021-01
(Dual switch for medical gases with 175 PSI nominal pressure)
1/2" conduit
connection
ground
screw
1/4 NPT
female port
P/N 6-129022-01
(Single switch for vacuum)
four - approx. 18" free leads
through 3/4" conduit connection
adjustment
dial
low
1/4 NPT female port
P/N 0208-5096-300
three - approx. 12" free leads
through 1/2" NPT conduit connection
adjustment
sleeve
1/4 NPT male port
20
Part No. 6-847684-00 Rev. D01
terminal strip
adjustment
screws
low
high
(Single switch for medical gases with 175 PSI nominal pressure)
low high
*Wires/contacts to be used with MEGA2 alarm system
NOTE:
Switch contacts shown with 175
PSI pressure applied.
Low switch is
preset at 140 PSI.
high
low
High switch is preset at 190 PSI.
*Wires/contacts to be used with MEGA2 alarm system
NOTE:
Switch contacts shown with 20
inHg vacuum applied.
Low switch is
preset at 12 inHg.
low
*Wires/contacts to be used with MEGA2 alarm system
low
high
*Wires/contacts to be used with MEGA2 alarm system
NOTE:
Switch contacts shown with
50 PSI pressure applied.
Low switch is
preset at 40 PSI.
High switch is preset at 60
PSI.
NOTE:
2 Switches Required.
Switch contacts shown
with 175 PSI pressure
applied.
Switch is preset at 195
PSI increasing.
Installer must set low
switch to 140 PSI
decreasing.