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Company Confidential
Copyright © RLE Technologies
75
RLE Technologies
RLE Technologies
LDZ1
1 Leak Detection Zone
Max of 1,000 ft. of sensing cable
Individual leak and cable fault LEDs
on the Front
Visible and audible annunciation
Test/Reset/Quiet pushbutton
Leak alarm relay (form C contact)
Cable fault relay (form C contact) Company Confidential
Copyright © RLE Technologies
76
RLE Technologies
RLE Technologies
LDZ1
LDZ1 Includes:
Qty 1 Zone controller
Qty 1 - 15 ft. leader cable
Qty 1 End-of-line terminator
Qty 1 - RLE screw driver
Qty 4 - Drywall anchors and screws
Requires (purchased separately)
Qty 1 - 24VAC or 24VDC power supply
(RLE WA-DC-24-ST)
Qty X Non-Sensing Cable
(RLE NSC-25, NSC-50, NSC-100)
Qty X Sensing Cable
(RLE SC-25, SC-50, SC-100)
Qty X In-Line Spot Detectors (RLE SD-Z)
Qty X J-Clips (RLE JC-10, JC-25, JC-50) Company Confidential
Copyright © RLE Technologies
77
RLE Technologies
RLE Technologies
LDZ1
Leak Detection LED: Flashes quickly if a
leak is present; flashes slowly if the leak
goes away before the system is reset;
solid once the quiet button is pressed.
Cable Fault LED: Flashes quickly if a
cable fault is present; flashes slowly if
the cable fault clears; solid once the
quiet button is pressed.
Power LED On when power is applied. Company Confidential
Copyright © RLE Technologies
78
RLE Technologies
RLE Technologies
LDZ1
Quiet/Reset/Test Switch:
Quiet: Press the switch momentarily to silence the
audible alarm; any LED(s) in alarm will be On (not
flashing).
Reset: If an alarm is not present, press the switch
once to reset the system. If the audible alarm has
been silenced, a second press of the button will
perform a reset. If any alarms still exist after they
are reset, the unit will go back into alarm.
Test: Press the switch continuously for one
second to light the fault LED and then the leak LED
in sequence. The audible alarm will sound. If the
switch is held for the entire sequence, the LEDs
will be on solid and both relays will energize. Test
sequence cycles on power up. Company Confidential
Copyright © RLE Technologies
79
RLE Technologies
RLE Technologies
LDZ1
LDZ1
TB2
Fault
Relay
NO
C
NC
Leak
Relay
NO
C
NC
P1
Whit
e
Bl
ac
k
Gree
n
Re
d
ZONE 1
EOL
Term
Sense Cable
SD-Z
+24V
d
c
Co
m
m
TB1
H
i
24V
a
c
Lo 2
4
V
a
c
15
'
Non-Sens
e Cabl
e
If Required -
wire to
monitoring
device
Dip Switches configure different operating
modes.
SW1-1: On=Supervised (NC) relay
Off=Unsupervised (NO) relays
SW1-2: On=Latching relays, Off=Non-latching
relays. If latching the relays stay in alarm until
the reset button is pressed. If Non-latching
relays are in alarm until the fault is cleared or
the reset button is pressed.
SW1-3: On = Leak and Fault Relays are
summary relays and both active on either a
leak or fault. Off = Leak relay actives on a
leak and the fault relay actives on a cable
fault.
SW1-4: On = Alarm will occur if a leak or fault is
present for 2 minutes. Off = Alarm will occur
if a leak or fault is present for 10 seconds. Company Confidential
Copyright © RLE Technologies
80
RLE Technologies
RLE Technologies
LDZ1
Zone Sensitivity Adjustment: A potentiometer in the center of the
circuit board is used to control the sensitivity. Counter-Clockwise
decreases zone sensitivity (requires more water to cause an
alarm). Company Confidential
Copyright © RLE Technologies
81
RLE Technologies
RLE Technologies
LDZ1
NC
C
NO
+-
CH
Configure Falcon Input
Dig NO or Dig NC?
Falcon
LDZ1
Fault Relay
NC
C
NO
Leak Relay
+-
CH
SW1-1 - Off /
UnSupervised
NC
C
NO
+-
CH
Configure Falcon Input
Dig NO or Dig NC?
Falcon
LDZ4
Fault Relay
NC
C
NO
Leak Relay
+-
CH
SW1-1 - On /
Supervised
How would you wire the
LDZ1 to a Falcon?
For UnSupervised LDZ1
relays?
For Supervised LDZ1
relays? Company Confidential
Copyright © RLE Technologies
82
RLE Technologies
RLE Technologies
LDZ1
Relay Energizes on Fault, Input to Falcon
opens.
Relay Energizes on Leak, Input to Falcon
closes.
Relay De-energizes on Fault, Input to
Falcon Closes.
Relay De-energizes on Leak, Input to
Falcon Opens.
*****************************************
What happens when LDZ1 powers up with
Set to Supervised? Unsupervised?
What happens if LDZ1 loses power?
What happens if a wire breaks or has a
very loose connection?
Dig NC
Dig NO
Dig NO
Dig NC
NC
C
NO
+-
CH
Configure Falcon Input
Dig NO or Dig NC?
Falcon
LDZ1
Fault Relay
NC
C
NO
Leak Relay
+-
CH
SW1-1 - Off /
UnSupervised
NC
C
NO
+-
CH
Configure Falcon Input
Dig NO or Dig NC?
Falcon
LDZ4
Fault Relay
NC
C
NO
Leak Relay
+-
CH
SW1-1 - On /
Supervised Company Confidential
Copyright © RLE Technologies
83
RLE Technologies
RLE Technologies
LDZ1
Wire up a LDZ1 to a Falcon and Configure it.
Zone 1: Leak Cable, Spot Detector, Leak Cable.
Leak Relay: Falcon Input.
Fault Relay: Falcon Input.
Then Test: Leak Each Cable and Spot Detector, Cable
Break. Set supervised, unsupervised, Latching
relays, latching Alarm. Company Confidential
Copyright © RLE Technologies
84
RLE Technologies
RLE Technologies
LDZ1-NA
1 Leak Detection Zone
Max of 1,000 ft. of sensing cable.
One status LED on the front
Summary alarm relay (form C contact) Company Confidential
Copyright © RLE Technologies
85
RLE Technologies
RLE Technologies
LDZ1-NA
LDZ1-NA includes (same as LDZ1):
Qty 1 Zone Controller
Qty 1 - 15 ft. leader cable
Qty 1 End-of-line terminator
Qty 1 - RLE screw driver
Qty 4 - Drywall anchors and screws
Requires (purchased separately)
Qty 1 - 24VAC or 24VDC power supply
(RLE WA-DC-24-ST)
Qty X Non-Sensing Cable
(RLE NSC-25, NSC-50, NSC-100)
Qty X Sensing Cable
(RLE SC-25, SC-50, SC-100)
Qty X In-Line Spot Detectors (RLE SD-Z)
Qty X J-Clips (RLE JC-10, JC-25, JC-50) Company Confidential
Copyright © RLE Technologies
86
RLE Technologies
RLE Technologies
LDZ1-NA
Status LED
Normal: Solid when power is applied and
no alarms are present.
Leak Alarm: Flashes at a 1 second rate.
Cable Fault Alarm: Flashes at a 4
second rate (two 0.5 second flashes
followed by a 2.5 second pause,
repeats).
Internal fault/failure: Flashes at a 5
second rate (flashes rapidly for 2.5
seconds, then remains solid for 2.5
seconds, repeats). Company Confidential
Copyright © RLE Technologies
87
RLE Technologies
RLE Technologies
LDZ1-NA
Dip Switches configure different operating
modes.
SW1-1: On=Supervised (NC) relay
Off=Unsupervised (NO) relays
SW1-2: KEEP IN OFF POSITION
SW1-3: KEEP IN OFF POSITION
SW1-4: On = Alarm will occur if a leak or fault
is present for 2 minutes.
Off = Alarm will occur if a leak or fault is
present for 10 seconds.
Zone Sensitivity Adjustment: A potentiometer in
the center of the circuit board is used to
control the sensitivity. Counter-clockwise
decreases zone sensitivity (requires more
water to cause an alarm).
LDZ1-NA
TB2
Summary
Relay
NO
C
NC
P1
Wh
i
t
e
Bl
a
c
k
G
r
een
Re
d
ZONE 1
EOL
Term
Sense Cable
SD-Z
+24Vdc
Co
m
m
TB1
Hi
24
V
a
c
L
o
24V
ac
15'
N
o
n-
Sen
s
e
C
a
ble
If Required -
wire to
monitoring
device