Harrington Signal ASHH-24SMR - Manual (Page 3)

Model ASHH PowerTone® Amplified Speaker For Hazardous Locations Document #256886
- 3 -
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.
After completion of initial system test, establish a program for periodic
testing of this device. Refer to NFPA 72, local Fire Codes and the
25 OR 70 VRMS
AUDIO
INTERNAL PTCK
CONNECTOR CARD
(25 OR 70 VRMS
SUPPLIED
SEPARATELY)
(SERIES B)
24 VDC
POWER
290A2627-12B
(+)
( - )
WHT
WHT
WHT WHT
WHT
WHT
WHT WHT
RED
BLK
RED
BLK
RED
BLK
RED
BLK
POWER SUPERVISION
RELAY MODEL
A77-716-02 BY
SYSTEM SENSOR, OR
MODEL R64 BY
UNITED SECURITY
PRODUCTS, OR
MODEL PAM-2, BY
AIR PRODUCTS &
CONTROLS LTD.
END OF THE LINE DEVICE
RECOMMENDED BY
CONTROL UNIT SUPPLIER.
Figure 4: Typical connector card (PTCK) installation wiring
290A2627-10B
VOLUME CONTROL
AMPLIFIER BOARD
+ RED RED
BLK
-
BLK
INSTALL
TONE CARD HERE
P2
24VDC
Figure 3: Tone/Connector Card Installation
290B3360
RED
END OF LINE
DEVICE
RECOMMENDED
BY CONTROL
UNIT
SUPPLIER
BLK
RED
BLK
+
-
SPEAKER
MODEL ASHH
Figure 2: Typical Tone Card Installation Wiring