Ansul AUTOPULSE 442R, Инструкция по осмотру, эксплуатации и техническому обслуживанию

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Installation Procedure
16 Autopulse-442R 50098:F 05/24/2001
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Initiating Device Circuits 1 or 2 on TB4 can
be used with either Style B (Class B) or
Style D (Class A) wiring.
A maximum of 200 mA is available from
the +24VDC four-wire smoke detector
power circuit on TB1 terminals 3 and 4.
Any power that is drawn from the +24VDC
Nonresettable Power on TB2 terminals 1
and 2 must be subtracted from available
four-wire detector power. (See “Specifica-
tions” and “Power” sections.)
Refer to the Device Compatibility
Document for suitable four-wire smoke
detectors.
Notes on Style D (Class A) and Style B
(Class B) field wiring:
1. The Power Supervision Relay coil
leads must be connected to the last
detector base 24V screw terminals.
2. Calculation of the maximum
allowable resistance in the 24 VDC
detector power wiring:
R
MAX
= (20.6 - V
OM
)
(N x I
S
) + (N
A
x I
A
) + (I
R
)
Where:
R
MAX
is the maximum resistance of the 24V
wires.
V
OM
is the minimum operating voltage of
the detector or end-of-line relay,
whichever is greater, in volts.
N is the total number of detectors on the
24V supply loop.
I
S
is the detector current standby.
N
A
is the number of detectors on the 24V
power loop which must function at
the same time in alarm.
I
A
is the detector current in alarm.
I
R
is the end-of-line relay current.
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7% 7%
+24VR
Control Panel
Power Circuit
53[
:
5FGU
UL listed
24 VDC
Four-wire
Smoke
Detectors
UL listed
4.7K,
1/2-Watt
ELR
Listed
Power
Supervision
Relay
Re
d
Bl
ac
k
IN #1, 2
Class B
Initiating Device Circuit
Figure 2.3 Typical Connection for
Four-Wire Smoke Detectors