Edwards Signaling ANSZS4B - Manual (Page 3)

P/N 3101185 • REV 02 • REB 28FEB13 3 / 4
PTC thermistors
Figure 1 shows the locations of the PTCs. PTC 2, 4, 6, and 8
provide output protection for speaker zones 1, 2, 3, and 4,
respectively. Each PTC is installed in a socket for easy
replacement.
The ANSZS2A and ANSZS4B are shipped with PTCs for
25 Vrms operation. These are labeled “XF 075.” For 25 Vrms
operation, leave these PTCs installed.
To configure the module for 70 Vrms operation, replace all four
PTCs with the optional PTCs provided. These are labeled
“XF 040.”
Installation instructions
Ensure that all wiring and devices installed in the system meet
the following standards:
•
NFPA 70 National Electrical Code
• NFPA 72 National Fire Alarm and Signaling Code
• NFPA 101 Life Safety Code
• Applicable state and local codes
Install this equipment in a clean, dry environment. Avoid
installation where the equipment could be subjected to
vibration. Remove all electronic assemblies from the enclosure
before drilling or punching the enclosure. Where possible,
make all cable entries from the rear or sides. Before making
any modifications to the enclosure, be certain that they will not
interfere with the assemblies or batteries.
For all field wiring, use FPL, FPLR, or FPLP as required per
NFPA 70, Article 760.
All wiring shown in “Wiring diagrams” is power-limited.
Wiring diagrams
Figure 2: ANSZS4B typical wiring
(1) This resistor sets the amplifier end-of-line value only. The
ANSZS2A and ANSZS4B must use 10 kΩ EOLRs.
(2) Break the wire run at each terminal to maintain supervision. Do
not loop the wire around the speaker terminal.
ANS25 / 50 / 100
ANSZS4B
FACP
EOLR
SPKR SET
EOLR (1)
POWER
SIG
CKT
SPKR
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ALL CALL
REMOTE ACTIVATION
(PULL-DOWN) INPUTS
ZONE 1
ZONE 2
ZONE 3
ZONE 4
PTT
V+
CKT NEG
SUPV OUT
SPEAKER
CONNECTION (2)
SUPERVISED
SUPERVISED
SUPERVISED
ALL ZONE SPEAKER
WIRING IS
SUPERVISED
Class B (Style Y) wiring
UNSUPERVISED
UNSUPERVISED
TB1
TB3
TB2 TB3
EOLR
10 kO EOLR
TB2
TB1
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
9
10
11
11
10
9
8
7
6
5
4
3
2
1 1
2
3
4
5
6
7
8
SIG ACT
1 2 3 4 5 6 7