Harrington Signal ASHX-24SMR - Manual (Page 4)

Model ASHX PowerTone® Amplified Speaker for Hazardous Location Document #256881
- 4 -
OPERATION/TESTING
WARNING
Under certain conditions these devices are capable of
producing sounds loud enough to cause hearing damage.
Adequate hearing protection should be worn if standing within
close proximity to device while testing. Recommendations in
the OSHA Sound Level Standard (29 CFR 1910) should not be
exceeded.
Property damage, serious injury, or death could occur if the
housing is not closed properly. To reduce possibility of
explosion, housing cover must be kept tight (all eight bolts fully
tightened) while circuits are energized.
After installation is complete, be sure to test the system to verify that
each amplified speaker operates satisfactorily. If it is found that the unit is
too loud for its location, an internal volume control can be adjusted.
Remove the housing cover and insert a slotted screwdriver with an 1/8"
blade into the hole shown in figure 2. Gently turn control to desired
loudness. Reinstall the housing cover.
After completion of initial system test, establish a program for periodic
testing of this device. Refer to NFPA 72, local Fire Codes and the
authority having jurisdiction for this information.
Provide a copy of these instructions for the Safety Engineer, system
operator(s) and maintenance personnel.
SAFETY MESSAGE TO OPERATORS
Even if your warning system is operating properly, it may not
be completely effective. People may not hear or heed your
warning signal. You must recognize this fact and ensure that
your warning signal achieves its intended effect through
proper
test/training sequences within your specific
application(s).
MAINTENANCE
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
Failure to follow all safety precautions and instructions may
result in property damage, serious injury, or death to you or
others.
• Read and understand all instructions before performing maintenance
on this unit.
• Do not perform maintenance on this unit when circuits are energized.
• Periodic checks should be made to ensure that effectiveness of this
device has not been reduced because speaker has become clogged
with a foreign substance or because objects have been placed in front
of the speaker
290A2920
24 VDC
POWER
25 OR 7O
VRMS
AUDIO
END OF LINE DEVICE
RECOMMENDED BY
CONTROL UNIT SUPPLIER
POWER SUPERVISION
RELAY MODEL A77-716-02
BY SYSTEM SENSOR, OR
MODEL R64 BY UNITED
SECURITY PRODUCTS,
OR MODEL PAM-2,
BY AIR PRODUCTS
& CONTROL LTD.
WHT
WHT
WHT
WHT
WHT
WHT
WHT
WHT
RED RED
BLK BLK
RED
BLK
RED
BLK ( + )
( - )
INTERNAL PICK
CONNECTOR CARD
(25 OR 70 VRMS
SUPPLIED
SEPERATELY)
Figure 4: Typical connector card (PTCK) installation wiring
290A2627-14
RED
BLK BLK
+ RED +
-
RED
BLK
+
- -
24VDC
POWER
SPEAKER
MODEL
ASHX
END OF LINE DEVICE
RECOMMENDED BY
CONTROL UNIT
SUPPLIER
Figure 3: Typical tone card installation wiring