24431
Rev. A
10/12
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Environmental Technology, Inc.
92 of 94
Automatic Air Dehydrator
ADH
®
SIROCCO™
Instruction Manual
INSTALLING THE ALARM RELAY CABLE
With the enclosure installed and the two breathers tightened, the filter or hose
connected to the drain port, the power and ground wires connected, and the
enclosure power and ground cable access hole sealed, the unit is now ready for
operation. However, to take full advantage of the ADH Sirocco AC NEMA
automatic air dehydrator capabilities, it is advised to connect, as desired, the
alarm relay cable as described below. Although the unit can now function, it
cannot alert the user to any of the alarm conditions which the unit has been
designed to report without the alarm relay cable installed. See Page 77 in this
Instruction Manual for alarm relay connector pin assignments.
8.
To install the alarm relay cable, begin by unscrewing the plug cap from the
bottom of the enclosure covering the weather-tight gray connector port.
Separate the two halves of the plug cap by unscrewing them from each
other from the inside of the enclosure. Once removed, both halves of the
plug cap can be discarded. Run conduit through the access hole, then
feed the cable through into the enclosure. The hole in the cap can
accommodate the width of a conduit. Feed in enough of the cable to
leave some slack so it can reach the Alarm Relay port.
9.
Once the alarm relay cable has been fed into the enclosure, connect it to
the Alarm Relay port inside the enclosure. Refer to Figure 6. As in step 6
above, seal the alarm relay cable access hole so that no ambient air can
enter the enclosure. If desired, seal the hole first, then connect the cable.
Figure 6. ADH SIROCCO AC NEMA
ALARM RELAY CABLE CONNECTION.
(This port is not
used at this time.)