Med Touch Series LCD Alarm Systems
Powerex
•
150 Production Drive
•
Harrison, OH 45030
•
USA
P 1.888.769.7979
•
F 513.367.3125
•
www.powerexinc.com
IN597400AV
•
08/2016
Page 9 of 56
Installing the Transducers (Non-Remote)
After depressurizing the 150 psig standing pressure from the piping
system, install the appropriate transducers to the appropriate riser
extension tube connectors inside the rough-in box. Hand-tighten,
then torque lightly with a wrench.
Installing the Transducers (Remote)
Transducer assemblies with DISS gas specific fittings have also been
provided and, after the 24 hour standing pressure test is completed
and normal operating pressure has been restored to the medical gas
piping system, they must be connected to the DISS demand valves.
Note: maximum mounting distance of each remote transducer is
5,000 feet away from the alarm panel to which it will be wired. Follow
the wiring instructions in Appendix F.
The transducers have been designed so that they may be installed in
a standard 4”x 4”x 2 1/8” electrical junction box for added protection.
A panel mount feature has been provided to allow mounting of
the transducer using standard 1/2”conduit connections and 4”x 4”x
2 1/8” junction boxes. Note: The DISS nut & nipple will need to be
removed to allow installation of the conduit nut and then re-installed
using oxygen safe Teflon tape.
Care should be taken to not allow debris of any type to enter the
transducer during the removal & re-installation of the DISS nut &
nipple as this may prevent the transducer from functioning properly.
Connecting the Transducer Wiring to the Alarm Front Circuit
Board
The wire terminal connector on the gas board has six wire
connection slots. The two wires from the transducer should be
installed in the BLK & WHT SENSOR slots. These are the two slots
closest to the center of the gas board (as shown). If the transducer is
installed remotely and additional wire is used, it is preferred that the
wire polarities remain the same even if the wire colors are changed.
