Valcom V-5331215A Service Manual
PagePac
®
by
40 WATT EXPLOSION PROOF HORN
V-5331215A
INTRODUCTION
Explosion Proof Horn Speakers are constructed
so that all electrical components are sealed from
the atmosphere and may be used in areas where
flammable substances are present. The exp losion
proof speakers require some assembly before
installation (see Figure 1).
Explosion proof speakers are mounted, using the
U-shaped mounting bracket (attach ed to each
speaker). These brackets are intended primarily
for mounting on flat surfaces, and each bracket
has three holes which may be used for installing
mounting hardware. Speaker position in the vertical axis may be adjusted by loosening the bolts
that secure the bracket to the speaker body
(see Figure 1).
SPECIFICATIONS
FEATURES
• UL/CSA Approved
• Heavy Duty Construction
• Omni-Directional Mounting Bracket
• 5 Tap Settings (2.5W, 5W, 10W, 20W , 40W)
Nominal Specifications
• Dispersion: Wide Angle
• Input: 70.7V Line
• Output: 101dB - 113dB
Dimensions/Weight
• 16.5”Dia. x 21.5”D
(41.9cm x 54.6cm)
• 27 lbs. (12.2 kg)
Environment
• Temperature: -4 to 131° F (-20 to 55° C)
• Humidity: 0 to 95%
Issue 1
INSTALLATION
MOUNTING
Separate the horn and the b ase of the speaker by
holding the base of the speaker tightly and turning
the horn counterclockwise (see Figure 1, View 1).
Separate the two halves of the speaker base by
removing the eight bolts (see Figure 1, View 2).
Make the conduit entry into the speaker as
required by local ordinances f or the class and type
of speaker used (see Figure 1, View 3).
On the speaker cable, separa te the inner wires f or
a distance of 3 or 4 inches by stripping away insulation from the main cable. If us ing shielded cable ,
the inner wire without insulation is the shield wire.
Str ip appr oximately 1/2 inch of insulation from the
end of each of the smaller insulated wires.
Note: The cable must enter t he speaker thr ough a
conduit that has been installed according to local
ordinances for the class and type of speaker
used.
Connect the wires on terminals 1 and 2. If
shielded cable is used, either splice the shield
wire to provide a continuous shield to the next
speaker, or clip the shield wire at the point where
it emerges from the main cable, as appropriate.
The shield wire should not be terminated on the
speaker.
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POWER ADJUSTMENTS
If necessary, remove the power tap selection wire
(white wire) and reattach it to the desired power
tap. The numbers on the terminal strip indicate the
output in watts for a 70-volt pagi ng system (on a
25-volt paging system, the output wil l be approximately 1/8 of that indicated (see Table 1)).
Reassemble the two halves of the speaker case
by reinstalling the eight bolts.
CONNECTION TO AMPLIFIER
Exercise special care in removing back cover of
explosion proof driver enclosure (Part 1) to avoid
damaging machined surfaces. Prior to reassembly, make certain that joining surfaces of enclosure are free of dirt. Tighten all cover bolts
completely. To provide the specified protection in
hazardous locations, please note that no compound of any type is to be applied on machined
flange.
TABLE 1. 40-Watt Explosion Proof
Impedance 70V Power 25V Power
Tap Setting
1 2K 2.50 0.330
2 1K 5.00 0.650
3 500 10.0 1.30
4 250 20.0 2.60
5 125 40.0 4.80
Ohms Watts Watts
TECHNICAL ASSISTANCE
When calling, have a VOM and a telephone test
set available and call from the job site. Call (540)
427-3900 and ask for PagePac Technical Support, or call (540) 427-6000 for Valcom 24-hour
Automated Support. Visit our websites at
http://www.pagepac.com and www.valcom.com.
Should repairs be necessary, attach a tag to the
unit clearly stating company name, address,
phone number , contact person, and the nature of
the problem. Send the unit to:
Valcom, Inc.
PagePac
5614 Hollins Road
Roanoke, VA 24019-5056
®
Repair Dept.
1
CONNECT TO DESIRED POWER TAP
CONNECT TO DESIRED
12
3
3 2 1
40W 20W 10W 5W 2.5W
40W 20W 10W 5W 2.5W
POW ER TAP
FROM ADAPTER
FROM AMPLIFIER
3
3
2
Each explosion proof speaker has a one-
Each explosion-proof speaker has
half-inch conduit access into the sealed
a one-half-inch conduit access into
case. Conduit entry into the speaker must
the sealed case. C onduit entry into
be made in accordance with local codes
the speaker m ust be m ade in
accordance w ith lo cal cod es for th e
for the Class and Group of speaker being
C lass and G roup of speaker being
used. See Connection Procedures.
u s e d . S e e C o n n e c tio n P ro c e d u re s .
Figure 1
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