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A. CODED OPERATION
All VZMs are normally configured in the “latch” mode of operation. If coded operation (from coded initiating
devices) is desired, cut the latch diode CR6. See Fig. 15.
When using the Verification Zone Module VZM for waterflow alarm detection, the zone maintenance switch
must be bypassed (per U.L. 864).
Install mini-jumper J2 as shown in Figure 15. The notification appliances can only be silenced after the water-
flow device has been restored to normal.
B. GENERAL ALARM — ZONE JUMPER CONFIGURATION
The zone jumper matrix and zone supervision jumpers should be configured per the instructions
in Section 16.1.
C. WIRING
The wiring should be configured per the instructions in Section. 16.1.
D. SMOKE DETECTOR TEST
The VZM has an optional two-pin mini-jumper connector J2, P/N 2110-0014, which is installed when testing
smoke detectors without activating the verification time cycle.
16.3 The Double Density Zone Detector Module (ZDM-D)
The Double Density Zone Detector Module (ZDM-D) provides two zones in the space of one. Each zone
of the ZDM-D has an individual zone maintenance switch as well as a supervised red “ZONE ALARM” LED
and yellow “ZONE TROUBLE” LED. The ZDM-D is not directly interchangeable with the ZDM; some modifica-
tions are required on the BMFC and/or ZMC (see Fig. 17). The ZDM-D will accept two-wire smoke detectors,
four-wire smoke detectors, and normally open contact initiating devices wired either Class B, Style B in both
circuits (Zone A and Zone B) or Class A, Style D in Zone A and Class B, Style B in Zone B at Terminals 36
through 40 of the BMFC or ZMC. NOTE: When wiring Zone A for Style D operation, a Model V.E.O.L. must be
used (consult factory). Each zone on the ZDM-D is capable of powering a specific number of two-wire smoke
detectors.
The output parameters of the initiating circuits with a ZDM-D module are as follows:
Voltage (per zone)
24 VDC nominal
Max. ripple voltage
.672 VAC (RMS)
Standby; Current (per zone)
.006 amp.
Alarm current
.035 amp.
Power limited
Supervised
When using a ZDM-D module, the jumpers on the BMFC and/or ZMC must be configured
as follows (refer also to Fig. 17):
Zone 1 (BMFC)
Cut:
JRA, CR47;
Install: J31, J33
Zone 2 (BMFC)
Cut:
JRB, CR48;
Install: J32, J34
Zone 3, 5, 7, etc.
Cut:
JRA, CR20;
(ZMC)
Install: J11A, J33
Zone 4, 6, 8, etc.
Cut:
JRB, CR21;
(ZMC)
Install: J11B, J34
W1
W2
RED ZONE ALARM
YELLOW ZONE TROUBLE
YELLOW ZONE TROUBLE
RED ZONE ALARM
ZDM-D
R23
R24
F1
F2
MAINTENANCE
SWITCH
ZONE B
ZONE A
MAINTENANCE
SWITCH
W4 W3
LED. ZONE B
LED. ZONE B
LED. ZONE A
LED. ZONE A
Figure 16
NOTE: Jumpers J11A, J11B, J31, J32, J33 and J34
are wire jumpers, NOT 1N4004 diode jumpers.
IMPORTANT: If the required jumpers are not
configured as described above, contact the factory.
NOTE: When using two-wire smoke detectors, ONLY FCI Approved, U.L. Listed (Multiple Listed) two-wire
smoke detectors should be used. See FCI Addendum, P/N 9000-0427.
IMPORTANT: Remove the test mini-jumper connector J2 after completing the test.
ZDM-D
JUMPER
POSITION
CONFIGURATION
9000-0007
Page 17 of 28
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