Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Refrigerant Leak Detection System Installation Instructions
Table of Contents
Introduction ......................................................................................1 Hardware Specifications ..................................................................3 Functional Overview ......................................................................10 Panel Installation ............................................................................29 Sensor Installation..........................................................................30 Horn/Strobe installation .................................................................32 Wiring the System..........................................................................33 Checking Installation .....................................................................38 Recommended Gas Alarm Settings ...............................................38 Maintenance ...................................................................................39 Model & Part Numbers ..................................................................41 Introduction
Novar Refrigerant Gas Leak Alarm Panel Kits, see Figure 1, are
designed to continuously monitor refrigeration racks and walk-in
coolers/freezers for the presence of refrigerant gases. Novar’s
Refrigerant Gas Leak Alarm Panel Kits provide easily accessible I/O
interfaces that allow connection to controllers from multiple
manufacturers.
Figure 1. Refrigerant Gas Leak Alarm Panel Kit
Continuous, remote monitoring can be realized by simply interfacing the
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Refrigerant Gas Leak Alarm Panel (RGLAP) to any Executive Controller
using any standard I/O module supporting a 4-20mA interface.
Continuous, off-site monitoring can be realized by simply interfacing the
Novar Refrigerant Gas Leak Alarm Panel to an 8IM Module or Rack
Input Module and an Executive Controller.
The Novar Refrigerant Gas Leak Alarm Panel Kit is a stand-alone, onezone, refrigerant-gas-detection system which consists of the following
components:
Novar Refrigerant Gas Leak Alarm Panel
Figure 2. Novar Refrigerant Gas Leak Alarm Panel
Honeywell/Manning AirScanTM IR Refrigerant Sensor
Figure 3. Honeywell/Manning AirScanTM IR Refrigerant Sensor
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
System Sensor Horn/Strobe Audio/Visual Alarm
Figure 4. System Sensor Horn/Strobe Audio/Visual Alarm
Battery Backup Panel
Figure 5. Battery Back-up Panel
Hardware
Specifications
Refrigerant Gas
Leak Alarm Panel
Enclosed Fuse Holder (600V, 30A) (F1):
Indicating: No
Poles: One
Amperage: 30A
Case: Thermoplastic
Torque Rating: 17.7in/lbs
Wire Range: #8-#14 AWG CU
Fuse Size: 13/13"DIA x 1.5"
Fuse: ATDR
120VAC-to-24VDC, 2.5A, Class 2 Power Supply Module (PS-1):
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Type: 24V/2,5A
Input
Rated Voltage Vin: 100VAC to 240VAC
Voltage Range: 85VAC to 264VAC
Line Frequency Range: 47Hz to 63 Hz
Mains Buffering: > 40 ms
Rated Current Iin: 1.22A to0.66A
Output
Rated Voltage Vout: 24VDC
Residual Ripple/Spikes: < 200/300mVpp
Setting Range: 22.2VDC to 26.4VDC
Rated Current Iout: 2.5A
Current Limitation: 3.4A typ.
Efficiency at Full Load: 87% typ.
Environmental Conditions
Transportation and Storage Temperature: -40°C to +70°C
Ambient Temperature During Operation:-20°C to +55°C
Degree of Protection:IP 20
Pollution Degree Environment:2
Humidity Rating:Climate category 3K3 acc. to EN 60721, relative air humidity
5...95 %, without condensation
EMC Interference Emission:EN 50081-1, class B acc. to EN 55022
EMC Interference Immunity:EN 61000-6-2, EN 61000-4-2/-3/-4/-5/-6/-11
Safety
Protection Class:Class II (without protective earth PE)
Galvanic Isolation Primary/Secondary:SELV output voltage acc. to EN 60950
and EN 50178
AC Fail Relay (RLY-2):
Coil Voltage:120VAC
Poles:DPDT
Contact Amperes:20A
Features:Locking Push Button = M4
Bi-Polar LED
Relay Module (RLY-1):
Coil Voltage:24VDC
Poles:3PDT
Contact Amperes:15A
Features:Locking Push Button = M4
Bi-Polar LED
Terminal Block Style Connectors (TB-1):
Torque Rating:4.2in/lbs
Wire Range:22-12 AWG STR (copper wire 60°C)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Honeywell Manning
Dual Alarm Relay
Module
Power Supply Requirements: +18 to +26 VDC
Power Supply Current: 120 mA Max
Operating temperature: -10° F to +120° F
Humidity Conditions: 0% to 95% RH non-condensing
Relay Contacts: Isolated 5A @ 125 VAC / 100 VDC
Set point Adjustment: 33%/100% full-scale (20 mA) and 50%/100%
full-scale (20 mA)
Built-in hysteresis: 2-second time delay for both On/Off transitions
Dimensions: 8.5” high x 8.5” wide x 2.5” deep
LED Status Indicators (Internal): Power (green), Low Alarm (yellow),
High Alarm (red)
Connectors: Screw terminal type 22-gauge to 18-gauge stranded copper
Maximum distance from controller: 1000 feet
Load Resistor: 50Ω to 400Ω
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Honeywell Manning
AirScanTM iR
Refrigerant Sensor
Figure 6. Honeywell Manning AirScan iR Specifications
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
System Sensor
Horn/Strobe
Audio/Visual Alarm
Figure 7. System Horn Strobe Specifications
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Fire-Lite CHG-75
Battery Charger:
Primary (AC) Power - TB1, Terminals 1 (Hot), 2 (Neutral) & 3 (Earth)
120VAC, 60Hz, 2.05A maximum
220/240VAC, 50Hz, 1.14A maximum (JP1 cut)
Fuse F1 - 6.25A (slow blow 3AG)
Wire size: Minimum 14 AWG with 600 volt insulation
Secondary Power (Battery) Charging Circuit - TB2, Terminals 1 (+) & 2 (-)
Supports lead-acid batteries only
Float Charge Voltage: 27.6VDC
Maximum Charge Current: 4.5A (peak)
Maximum Battery Capacity: 75AH
Supervised and Current-limited: F2 – 15A replaceable fuse
24 VDC Secondary (Battery) Input Power
The CHG-75 current consumption from the battery is as follows:
• During AC Loss: 60mA
• With AC Present: 0mA
Note: use these values in battery calculations for host FACP
Battery Output - TB2, Terminals 3 (+) & 4 (-)
Provides battery backup connection to other loads
Current-limited: F3 – 15A replaceable fuse
SLC (Signal Line Circuit) Connector - TB3, Terminals 1(B+), 2(A+), 3(B-) & 4(A-)
Voltage
24VDC nominal, 27.6VDC maximum
Maximum Loop Current
400mA (short circuit) or 100mA (normal)
Maximum Loop Resistance
40ohms
Supervised and Power-limited
Trouble Contact Rating - TB4, Terminals 1 (C), 2 (NO) & 3 (NC)
Fail-safe Form-C Relay Contacts
Rated for 2A @ 30VDC (resistive)
BAT-12260 26AHR
Lead Acid Battery:
Nominal voltage: 12VDC
Nominal capacity (20 hr): 26.0AH
Dimensions
Total height 125 mm (4.92")
Container height 125 mm (4.92")
Length 166 mm (6.54"); width 175 mm (6.89")
Weight
Approximately 8.80 kg (19.40 lbs)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Container material: UL94HB ABS, UL94V-0 ABS.
Internal resistance (25°C, 77°F): ~ 10 m.
Discharge capacity under different temperatures
40°C: ~ 102%
25°C: ~ 100%
0°C: ~ 85%
Capacity 25°C/77°F
20hr @ 1.3A: 26.0AH
5hr @ 4.16A: 20.8AH
1hr @ 15.6A: 15.6AH
1C @ 26.0A: 13.0AH
Charging voltage (25°C, 77°F)
Standby use: 13.65V ± 0.15V
Cycle use: 14.7V ± 0.3V
Maximum discharge current: 300A (5 sec)
Maximum charging current: 7.8A
Self-discharge residual capacity (25°C, 77°F)
After 3 months: ~ 90%
After 6 months: ~ 82%
After 12 months: ~ 70%
Piezoelectric
Trouble Buzzer:
Sound level Category
: Medium Sound Level
Mode of Operation: Slow Pulse
Voltage Rating: 6 to 28VDC
Frequency Range: 1900 Hz ±300 Hz
Loudness (Min. Voltage): 60 dB(A) min. @ 2 FT and 6VDC
Loudness (Max Voltage): 75 dB(A) min. @ 2FT and 28VDC
Current Draw
5 mA Max @ 6VDC
23 mA Max @ 28VDC
Min Pulse Rate (PPS): 0.5 @ 6VDC
Max Pulse Rate (PPS): 2.0 @ 28VDC
Duty Cycle (%): 50 (Approx)
Storage Temperature: -40°F to 185°F (-40°C to +85°C)
Operating Temperature: -22°F to 149°F (-30°C to +65°C)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Weight (Typical): 2.1 oz (59 g)
Housing: 6/6 Nylon, Color Black
Functional
Overview
The Novar Refrigerant Gas Leak Alarm Panel kit consists of a Novar
Refrigerant Gas Leak Alarm Panel, a Honeywell/Manning AirScanTM IR
infrared refrigerant gas sensor, and a Spectrometry Advance System
Sensor horn/strobe audio/visual alarm. An optional 24VDC Battery
Backup Panel is also available if required by the customer or local
authority. Figure 8. is a block diagram of the system.
Continuous, off-site monitoring can be accomplished by simply
interfacing the Novar Refrigerant Gas Leak Alarm Panel to either a
Novar 8IM or Rack Input Module and an Executive Controller.
Interfacing to an 8IM Module is implemented by connecting the 4mA-to20mA current-loop output (CNT-SIG and CNT-GND) to one of the 8IM
Module’s current inputs. For Rack Input Module implementation, one of
the three normally-open, dry-contact outputs provided (ALARM #1NO /
ALARM#1COM, ALARM #2NO / ALARM#2COM, or ALARM #3NO
/ ALARM#3COM ) should be used.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 8. System Block Diagram
Refrigerant Gas
Leak Alarm Panel
The Novar Refrigerant Gas Leak Alarm Panel consists of the following
components (See Figure 9):


Enclosed Fuse Holder (F1)
120VAC-to-24VDC, 2.5A, Class-2 Power Supply Module
(PS-1)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT






AC Fail Relay Module (RLY-2)
Honeywell/Manning Dual Alarm Relay Module (RDARM)
Relay Module of Three Normally-Open, Dry Contacts
(RLY-1)
Terminal Block Style Connector for Outside Connections
(TB-1)
Three Status Lamps (located on the center, lower front of
the panel)
SpectrAlert® Advance System Sensor Horn/Strobe
Audio/Visual Alarm
Figure 9. RGLAP Inside View
Enclosed fuse holder (F1), class-2 power supply module (PS-1), AC fault
relay module (RLY-2), relay module (RLY-1), and terminal connectors
(TB-1) of the Novar Refrigerant Gas Leak Alarm Panel are all mounted
on 1-3/8 inch (35mm) wide DIN rail.
The Honeywell/Manning Dual Alarm Relay Module (RDARM) is
mounted with threaded standoffs and nuts at each corner of the board.
The SpectrAlert® Advance System Sensor Horn/Strobe Audio/Visual
Alarm is snap-fitted to a four-screw-mounted base-plate at the top center
of the panel door.
For ease of installation, all modules and terminals have wire-cage and
screw connections (Figure 10).
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 10. Wire-cage screw connections
The enclosed fuse holder F1 (see Figure 11) contains a 600V, 30A fuse
which is easily replaceable by use of a fuse lift-handle system. If an overcurrent fault should occur within the system, the fuse will open removing
the system from the 120VAC power line. One replacement fuse is
mounted inside the panel at the lower right (see Figure 11).
Figure 11. Fuse placement
The 120VAC-to-24VDC power supply (PS-1 in Figure 12) sources
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
+24VDC@2.5A to all components of the system.
120VAC line power is supplied to the module through two wire-cage and
screw terminals. One terminal (L1) connects to line voltage through fuse
module F1; the other (Neutral) through the TB-1 terminal block
connector.
Figure 12. 24VDC power supply
The AC fail relay (RLY-2 in Figure 13) prevents system power failure if
a power-line loss should occur by switching from the 120VAC-to24VDC power supply to the optional +24VDC Battery Backup Panel if
installed. Battery Backup Panel connections are made at TB-1 BATT(+)
and BATT (-). If a power outage should occur, the Battery Backup
option will allow the Refrigerant Gas Leak Alarm Panel to continue
normal operation for twenty-four hours and then be capable of operating
in alarm mode for five minutes if a refrigerant leak should occur during
the power outage. The AC fail relay has both mechanical and LED status
indicators and a locking push button.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 13. Power system failure prevention
Output from the Honeywell/Manning AirScanTM IR infrared refrigerant
gas sensor is input to a Honeywell/Manning Dual Alarm Relay Module
(Figure 14). The Dual Alarm Relay Module is a 4mA-to-20mA, feedthrough device designed to provide remote dual stage alarm relay outputs
and can be used with any Honeywell/Manning Systems gas sensor.
Setpoint adjustment is by a two-position switch, allowing standard trip
levels of 33% / 100 % full scale trip levels or 50 % / 100% full scale. The
2A@24VDC SPDT relays are unpowered in normal state. Three LED's
located at the center of the module indicate status of power (green), low
alarm (yellow), and high alarm (red).
Figure 14. Relay module
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Connections are made to the Dual Alarm Relay Module (RDARM) from
panel terminal blocks TB-1 (CNT-SIG, CNT-GND, SEN-GND, SEN24V, and SEN-GND) through two board mounted connector blocks, one
providing gas sensor +24V power, ground, and 4mA-to-20mA signal
input; the other providing control panel +24V power, ground, and 4mAto-20mA control signal.
NOTE!
In the event that offsite monitoring will not being utilized (not
connected to a Novar 8IM Module), to enable the alarm
function of the alarm panel a properly sized (wattage), 50Ω to
400Ω resistor must be connected between terminals CNT-SIG
and CNT-GND. If this is not done, the Dual Alarm Relay
Module will not alarm in the event of a detected gas leak.
The Relay Module (RLY-1 in Figure 15) provides three normally-open,
dry contacts which are used for auxiliary monitoring of alarms or
external equipment interfacing. The relay has both mechanical and LED
status indicators and a locking push button.
Figure 15. Relay module
Three status lamps are located on the lower front of the panel (Figure
16). After the 120VAC power is applied, the left-side green status lamp
will be illuminated. The center blue 24VDC power status lamp is
illuminated with the presence of either battery-backup power or the
24VDC power supply. The right-side red alarm status lamp is
illuminated only during an alarm.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 16. Alarm Panel
Upon detection of a refrigeration gas leak, the alarm status lamp is
illuminated by the Dual Alarm Relay Module’s low-alarm relay, which
also activates the SpectrAlert® Horn/Strobe Alarm, causing the strobe to
flash at a one-hertz rate and the horn to sound.
NOTE!
Alarms are automatically silenced when the detected refrigerant
has dissipated in the area being monitored and the gas sensor
sampling chamber has been cleared. Provision is made for the
addition of external strobe/horn devices at connector terminals
H/S 24V and H/S GND.
Manning AirScanTM
IR
The Honeywell Manning AirScanTM IR infrared sensor (Figure 17) is a
microprocessor-based sensor that is selective to refrigerants and provides
years of service at the highest level of accuracy and reliability. This
highly versatile sensor features SensorCheckTM, a unique technology that
continuously monitors sensor performance that enables it to provide
worry-free performance throughout the life of the sensor. A true
“diffusion” design sensor, the Honeywell Manning AirScanTM IR sensor
does not require pumps or filters and allows all points of gas detection to
be monitored perpetually, unlike sample draw systems.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 17. Air Scan
Gas detection by the infrared method is based on the principle that most
gases absorb infrared energy at a characteristic frequency. In this
instrument, a broad band infrared source emits energy which is then
band-pass filtered to produce a narrow range of frequencies characteristic
of the refrigerants’ (CFC/HCFC/HFC) absorption spectra.
Any refrigerant in the gas sample cell (Figure 18) selectively absorbs
energy reaching the detector. This reduction in energy is detected,
amplified and sent to the signal processing portion of the system.
The Honeywell Manning AirScanTM IR Sensor line is a three-wire, 4mAto-20mA sensor for two bands of refrigerants available in a range of 0—
3,000ppm, but can be adjusted for lower ranges, if required. The lowband or R-404a infrared sensor reacts to R-123, R-134a, R-404a and R507. The high-band or R-22 Honeywell/Manning AirScanTM IR sensor
reacts to R-22.
Figure 18. Sample cell
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Internal compensation for environmental changes allows the sensor to
automatically adapt to fluctuating temperature and humidity conditions.
Every two seconds SensorCheckTM technology monitors the AirScanTM
IR source and ensures that the dual channels are functioning properly. A
notification signal will be transmitted if any of several performance
parameters are not met.
Monitoring equipment must be configured to indicate a fault if the signal
is less than 1.5mA. All signals over 20mA must be considered a high gas
concentration.
Honeywell Manning infrared sensors are normally long-lived (5 years
plus), unless physically damaged or wetted with water or other liquid.
Power and signal connections for the Honeywell Manning AirScanTM IR
are made through a wire-cage and screw connector (see Figure 19).
Figure 19. Screw connector
Sensor operation status is indicated by the blink pattern of seven LED’s
located in a vertical row on the right side of the sensor circuit board (see
Figure 20). LED status is differentiated by color and duration/pattern of
blink(s).
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 20. Sensor circuit board
After power-up, the green power LED is continuously on, both fault
LED’s are off, and the green source LED is blinking once every 2
seconds.
The green power LED is continuously ON once power is applied.
The yellow system LED indicates the following:




Continuous ON during normal filtered output run mode “dead band” from 4mA to 4.6mA
Slow blink during normal non-filtered output run mode
Fast blink indicating unit lost calibration data
Off during 4mA-to-20mA loop check
The yellow calibrate LED indicates the following:




Continuous momentary on for auto-zero mode activation
Slow blink for 4mA output calibration mode
Medium double blink indicates 4mA-to-20mA loop check
0.5mA (low)
Fast blink for span calibration mode and 4mA-to-20mA
loop check 22mA (high)
The red fault LED indicates the following (all scenarios produce a
0.5mA output):
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT




Continuous on indicates a failed source, low signal, or
circuit failure
Slow blink indicates the power supply 24VDC input
voltage is too low
Medium double blink indicates sensor is outside the
operating temperature range
Fast blink indicates the signal drifted below 4mA and needs
to be re-calibrated, only in non-filtered output run mode (no
dead-band)
The red mA fault LED attempts to output a 0.5mA. A fast blink indicates
4mA-to-20mA loop failure or load resistance too high.
The green source LED blinks once every 2 seconds to indicate when
source is energized and also that the source is not short circuited.
The green ATMOS LED is continuously on and indicates ATMOS
circuitry is active or adjusting the enclosure’s internal environmental
conditions for the sensor to function reliably.
The above description on LED indicators is very limited; See AirScan IR
Manual for full details.
Pushbutton S1 (Figure 21) is used to initiate the auto-zero function,
program the 4mA output calibration, and initiate the 4mA-to-20mA loop
test.
Figure 21. Pushbutton S1
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
System Sensor
SpectrAlert®
Horn/Strobe
Audio/Visual Alarm
The SpectrAlert Advance horns, strobes, and horn/strobes can be used
indoors or outdoors in wet or dry applications and can provide reliable
operation from −40°F to 151°F.
Figure 22. Honeywell Sensor SpectrAlert Horn/Strobe
Like the entire SpectrAlert Advance product line, these devices include a
variety of features that increase their application versatility while
simplifying installation. All devices feature plug-in designs with minimal
intrusion into the back box, which make installations fast and foolproof
while virtually eliminating costly and time-consuming ground faults.
All horns, strobes, and horn/strobes use a universal mounting plate with
an onboard shorting spring that tests wiring continuity before the device
is installed, protecting devices from damage.
The SpectrAlert Advance is housed in a NEMA 4X rated, 5.6” x 4.7” x
2.5 deep (without weather-proof back box) enclosure.
24VDC Battery
Backup Panel
The Battery Backup Panel (Figure 23) allows the Refrigerant Leak
Detection Panel to continue with normal operation for twenty-four hours
and then be capable of operating in alarm mode for at least five minutes.
The Refrigerant Leak Detection Panel transfers to the Battery Backup
Panel when 120VAC power is lost.
The Refrigerant Leak Detection Panel automatically returns to primary
power when the 120VAC power has been restored.
Simultaneously, when 120VAC power is lost, a 24VDC trouble audible
will sound (pulses on/off for one second) until the primary power has
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
been restored. The audible buzzer cannot be manually silenced.
Battery Backup Panel dimensions are 15.6” x 15.5” x 5.13”; weight is
approximately 60lbs with batteries.
The Battery Backup Panel consists of the following components:




Fire-Lite CHG-75 Battery Charger
Fire-Lite BB-26 Battery Box
Fire-Lite BAT-12260 26AH, Lead-Acid, Sealed Battery (2
required).
Piezoelectric Buzzer with Bracket Assembly
Figure 23. Battery Backup Panel
CHG-75 Battery
Charger
The CHG-75 battery charger (Figure 24) is designed to charge lead-acid
batteries that provide emergency standby power. Two 12V batteries
(BAT-12260) are used in series to supply a nominal 24VDC. The battery
charger is compatible with any lead-acid batteries with a rating of 25AH
to 75AH. The CHG-75 can be configured for 120VAC operation or
220/240VAC operation via jumper selection.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 24. Battery Charger
Two screw terminal blocks, one insulated located at the lower-left-side
of the module and one non-insulated located at the right-hand side of the
module, provide connection points for line power, battery, and RGLAP
+24VDC power out (see Figure 24 and Figure 25).
Figure 25. Wiring Board
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Line power connections Line, Neutral, and Ground enter the CHG-75
through the insulated, screw-terminal block located at the lower-left side
of the module. BAT-12260 + and - connections are made at the lower
two screw terminals located on the right-hand side of the module.
RGLAP +24VDC power out connections are made at the upper two
screw terminals located on the right-hand side of the module.
Status indication LEDs are provided on the CHG-75 circuit board to
monitor various charger conditions:





AC LED – green LED indicates AC power is present
Trouble LED – yellow LED turns on for charger troubles or
trouble indication from the Master Trouble Input
Low Battery LED – yellow LED turns on when the battery
voltage drops too low
Charging LED – yellow LED indicates battery is being
charged, turns off when the CHG-75 is trickle charging
Ground Fault LED – yellow LED turns on to indicate
ground fault on the charger
BB-26 Battery Box
The battery box is designed to contain two BAT-12260 12V, 26AH,
lead-acid, sealed batteries; a CHG-75 battery charger; and a piezoelectric
alarm buzzer with bracket assembly.
The CHG-75 module is located and mounted on four #4-40 threaded
studs. One #4-40 stud, located at the left side of the CHG-75 module, is
provided for battery box grounding.
The BB-26 box dimensions are 15.6" (39.62cm) wide, 15.5" (39.37cm)
high, and 5.125" (13.02cm) deep.
For installation wiring, the box is designed with one 1.125” diameter
(2.857cm) knockout located on the left-side top of the box; four identical
knockouts are located in both sides and the rear of the box.
Two mounting holes are provided at the top of the battery box for
installation of optional AM-1and VM-1 meters.
For installation mounting, the BB-26 battery box has two mounting holes
located in the back of the box (see Figure 26)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 26. Battery Box
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 27. Mounting Diagram
Optional Ammeter
(AM-1) or Voltmeter
(VM-1)
Optional ammeter (AM-1) and voltmeter (VM-1) are available for the
CHG-75 battery charger. Meter ranges are 0A-to-10A and 0V-to-50V
respectfully. The meters indicate charge voltage and charge current. Both
meters are wired to the CHG-75 and mounted in mounting holes
provided in the BB-26 battery box.
BAT-12260
The BAT 12260 battery is a 12V, 26AH, lead-acid, sealed battery. Two
are required and are serially configured for a nominal output voltage of
24VDC.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Piezoelectric
Trouble Buzzer with
Custom Bracket
Assembly
A piezoelectric buzzer (Figure 28) is employed to sound a one-second
pulse rate, 70dB(A)@2Ft audible alarm when primary line power to the
Battery Backup and RGLP is lost. The alarm will sound until primary
power is restored and cannot be manually silenced.
Figure 28. Piezoelectric buzzer
The piezoelectric buzzer is mounted on a custom bracket which is
mounted to the CHG-75 module.
The buzzer is powered by the +24VDC battery source and is operated by
the CHG-75 module Form-C, trouble-relay contacts.
Panel Installation
This section covers the mounting of the Refrigerant Gas leak Alarm
Panel (RGLAP). It assumes that the work is being completed by an
engineer, technician, or service person that is performing control systems
installation.
Mounting and
Orientation
The Panel is to be mounted per the requirements of the Customer or
Authority having jurisdiction. The panel is to be mounted at a height
which allows appropriate access to the interior of the panel. When
mounting the panel to paneling or drywall, use hollow-wall anchors or
appropriate fasteners to insure that the assembly remains secure. The
panel should be on the outside of the space being monitored near the
entrance of that space.
Screw Locations
The RGLAP should be installed plumb and level and securely fastened to
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
a rigid mounting surface. The enclosure utilizes four mounting holes on
the back of the box (see Figure 29 below).
Figure 29. Mounting hole locations
Sensor Installation
This section covers the mounting of the Manning AirScanTM IR.
Mounting and
Orientation
Because each sensor can only “report” what it is seeing at the moment, it
is very important that the sensor be located where leaks are most likely to
occur. CFC/ HCFC/HFC vapor is heavier than ambient air, so in a room
with no air movement it will tend to settle. For quickest detection, mount
the sensor about one to two feet from the floor, close to the potential leak
source.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
If the primary application is the fastest possible leak detection, mount the
sensor near the potential leak sources. In doing this, be aware that the
indicated concentration may not be representative of personnel exposure
and easy access for the required calibration and maintenance could be
compromised.
General
Considerations:








Very Important:





Must be easily accessible for calibration and maintenance.
Always mount the sensor vertically.
Mount the sensor close to the potential leak source for
fastest possible leak detection.
Protect sensor from water, excessive humidity, and washdown.
Take air movement and ventilation patterns into account.
To prevent electrical interference, keep sensor and wire
runs away from mercury vapor lights, variable speed
drives, and radio repeaters.
Protect sensor from physical damage (fork lifts, etc.).
Do not mount the sensor over a door in a refrigerated area.
Sensor must be mounted vertically.
Never mount sensor flat on a ceiling.
Enter enclosure only through existing hole in bottom of
enclosure.
Always make a drip loop in the conduit.
Never mount sensor on a vibrating surface.
NOTE!
Mount sensor enclosures through the flange holes as shown in
Figure 30 and always mount vertically.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 30. Sensor Dimensions
Horn/Strobe
installation
This section covers the mounting of the Remote Horn and Strobe.
The Horn/Strobe is to be mounted per the requirements of the Customer
or Authority having jurisdiction.
An installed weatherproof back box should not be left without an
installed unit for extended periods of time to avoid water accumulation.
Mounting and
Orientation
The wall-mount back box shipped with these products must be mounted
with the internal post (Figure 31A) in the lower left corner.*Attach the
device mounting plate (Figure 31B) to the weatherproof back box
(Figure 31C) using the four non-painted screws (Figure 31D) included
with the product. Hook the tabs on the product housing into the grooves
on the mounting plate. Then, swing the product into position to engage
the pins on the device with the terminals on the mounting plate. Verify
that the tabs on the back of the device are fully engaged with the
mounting plate. Finally, secure the device to the mounting plate by
tightening the single screw attached to the front of the housing (Figure
31E). For tamper resistance, the captured screw may be replaced with the
Torx screw supplied with the device.
For conduit installation refer to the Proper Installation of SpectrAlert®
Advance Outdoor Audible Visible Appliances guide.
Screw Locations
The Horn and Strobe should be installed plumb and level and securely
fastened to a rigid mounting surface. The enclosure utilizes two flange
holes on the either side of the box (see Figure 31 below).
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 31. Horn Strobe details
Wiring the System
CAUTION!
All wiring must comply with local and national electrical
codes.
CAUTION!
Disconnect power before beginning installation. Failure to do
so can cause electrical shock or equipment damage.
NOTE!
This product should be installed by a trained and experienced
technician. Failure to follow these instructions carefully could
damage the product or cause unexpected system operation.
Refrigerant Gas
Leak Alarm Panel
The 120VAC-to-24VDC power supply (PS-1) sources +24VDC@2.5A
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
to all components of the Novar Refrigerant Leak Detection System
through Terminal Block 1 (TB1). 120VAC line power is supplied to the
module through two wire cage and screw terminals using 18 AWG. One
terminal (L1) connects to terminal 1 (on TB1) line voltage through the
fuse module; the other (Neutral) through the terminal block connector
terminal 2 (TB1). Connect the Earth Ground to terminal 3.
NOTE!
Refer to the wire diagram in the panel door pocket for further
detail.
NOTE!
In the event that offsite monitoring will not being utilized (not
connected to an Input/Output Module), to enable the alarm
function of the alarm panel a properly sized (wattage), 50Ω to
400Ω resistor must be connected between terminals CNT-SIG
and CNT-GND. If this is not done, the Dual Alarm Relay
Module will not alarm in the event of a detected gas leak.
Connecting to a
Novar system
The RGLAP is typically connected to a Novar 8IM Module, or other
input/output module. Connect TB1 terminals 6 (Signal), and 7 (Ground)
in the RGLAP (see Figure 32) to the 8IM module sensor input field
termination block. There are 8 screw terminals; the signal wire is to be
connected to the positive terminal and ground to the negative terminal on
the 8IM module.
Connecting to a
third party system
The RGLAP may be connected to an input/output device from other third
party suppliers designed to accept a 4mA-20mA signal. Connect TB1
terminals 6 (Signal) and 7 (Ground) in the RGLAP connect to the Third
party input/output module as specified by the manufacture.
The Novar Refrigerant Leak Detection System can be monitored by any
other manufacturer’s control equipment using the normally open dry
relay contacts provided in the RGLAP.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
NOTE!
In the event that offsite monitoring will not being utilized (not
connected to an Input/Output Module), to enable the alarm
function of the alarm panel a properly sized (wattage), 50Ω to
400Ω resistor must be connected between terminals CNT-SIG
and CNT-GND. If this is not done, the Dual Alarm Relay
Module will not alarm in the event of a detected gas leak.
Figure 32. Contactor Panel
Manning
AirScan™IR
NOTE!
Nearly all start-up problems are due to improper wiring or
monitor configuration. Please follow these guide-lines
carefully.
Always use three conductors, insulated, stranded, shielded copper cable.
Use only three conductor cable, not two cables of two conductor wire.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Do not pull sensor wiring with AC power cables. This will cause
electrical interference. Be sure there are no breaks or splices in sensor
wiring runs. If cable runs cannot be made without a splice, all
connections must be soldered. Soldering should be done using a rosin
flux to tie the connecting ends of sensor wires to ensure a positive and
long-lasting contact.
Ground the shield at the main control panel. Connect the shield wire in
the sensor terminal block labeled shield. Tape all exposed shield wire at
the sensor to insulate it from the enclosure.
All penetrations into a refrigerated room should be sealed to prevent
condensate from forming in the conduit and dripping into the sensor
enclosure.
Make drip loops for cables going into sensor housings. Follow the
special mounting instructions on the enclosure (…This End Up).
NOTE!
Circuit board mounted sensor provides a linear 4/20 mA output.
Monitoring equipment may have a maximum input impedance
of 500 ohms.
Cable Recommendation: Use #18/3 (Belden #8770) for cable runs up to
200 feet. Use #16/3 (Belden #8618) for cable runs up to 1,000 feet. Use
only the existing punched holes for connections to the sensor.
Connection to RGLAP: The sensor wires are connected to terminal
block 1 (TB-1 Figure 33) on terminals 8 (signal), 9 (24V) and 10
(Ground)
NOTE!
Allow the sensor to operate for 12 hours with the enclosure
sealed prior to testing the sensors. This will give the sensor
time to reach thermal equilibrium to the external and internal
temperatures while in operation. Because sensors are normally
located at a distance from the main unit, the test time required
and accuracy of the response checks will be improved if two
people perform the start-up procedures and use radio contact.
To avoid possible activation of the H/S both internal and
remote do not connect the signal wire during this period.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Figure 33. Wiring
Remote Horn/Strobe
The Horn/strobe can be wired (Figure 34) using #12 to #18 AWG. The
remote horn/strobe is connected to the RGLAP on terminal block 1
(TB1) on terminals 11 (24V), 12 (Ground).
Figure 34. Terminals
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Checking
Installation
Manning AirScan™
IR
NOTE!
Before applying power, make a final check of all wiring for
continuity, shorts, grounds, etc. It is usually best to disconnect
external alarms and other equipment from the sensor until the
initial start-up procedures are completed.
For detail in verifying proper operation of the Manning AirScan™ IR
sensor please reference section 3 of the Honeywell Installation and
Instruction manual Manning AirScan™IR Refrigerant Sensor 19546
AirScan™-IR-com
RGLAP HORN/STROBE
1.
2.
3.
4.
Apply 120 VAC
Verify the 120 VAC lamp is lit.
Verify the 24 VDC lamp is lit
Exposes the sensor to the recommended about of gas that is being
monitored per the Calibration manual (Refer to the AirScan
Calibration manual)
5. Verify that the RGLAP responses causing appropriate alarm
function (Horn/Strobe active and front panel alarm lamp is lit).
6. Allow alarm to clear before leaving
Recommended
Gas Alarm
Settings
User Configuration
Settings
Only the Dual Relay Module is capable of configuration. The user can
select one of two set point adjustments (left position: 33%/100% full
scale, right position: 50%/100% full scale).
Factory Defaults
The Dual Relay Module is factory pre-set for 33%/100% set point trip
levels.
The gas sensor has been calibrated at an altitude of 1,000 ft. above sea
level. For installations where the altitude is greater than 3,500 ft. above
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
sea level, it is necessary to recalibrate the sensor “span” during the initial
setup for more accuracy and reliability.
Calibration is accomplished by using a Manning “CK” Calibration Kit
for the specific gas to be detected. For information on Calibration kits
please refer to the Manning Calibration Kit Instruction and Calibration
Manual.
Maintenance
Manning AirScan™
IR
Expose each sensor to test gases monthly to verify that the sensor has a
normal response. This will also check the alarm lights and relay action of
the monitoring equipment.
NOTE!
It is essential that signal voltages be taken and logged on a
consistent basis at least monthly. Periodically, sensors should
be exposed to refrigerant sample and the results logged.
For proper operation it is essential that the test and calibration schedule
be adhered to. Honeywell Analytics recommends the following
maintenance schedule:

Calibration should be performed with certified calibration
gas every six months. Calibration kits are available from
Honeywell Analytics.

All tests and calibrations must be logged. It is highly
recommended that certified calibration gas be used every
six months.
NOTE:
For information on Calibration kits please refer to the Manning
Calibration Kit Instruction and Calibration Manual.
Interchangeability
The 404a and 407a gas sensors are interchangeable with any RGLAP,
provided it is used for monitoring the appropriate refrigerant gas.
Refrigerant Gas
Leak Alarm Panel
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Only the AC fuse is serviceable. A Replacement fuse will be included
with each panel. The Dual Relay Module and Indoor Horn/Strobe is also
field replaceable. All other hardware failures will require panel
replacement.
Outdoor
Horn/Strobe
No user serviceable parts. Failures will require Horn/Strobe
replacement.
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Model & Part
Numbers
The part numbers below should be used to order Novar parts.
OS/ Part No.
LKDT-404A-KIT-1
LKDT-407A-KIT-1
LKDT-PNL-1
815003000
M-700071
P2WHK-P
LKDT-BATT-BCKP-KIT
P2WH-P
BAT-12260-M
M-700124
Product
404a Refrigeration Leak Detector Panel Kit
407a Refrigeration Leak Detector Panel Kit
Refrigeration Leak Alarm Panel (no sensor-spare part)
404A Refrigerant Sensor
407A Refrigerant Sensor
Horn/Strobe, 24 VDC, Outdoor w/Back Box, White
Battery Back-up Unit w/Power Supply, Battery Cabinet, Trouble
Buzzer Assembly and (2) BAT-12260 Sealed Lead-Acid Batteries
Horn/Strobe, 24 VDC, Indoor w/o Back Box, White (spare part)
Battery, 12 VDC, 26 AHR, Sealed Lead Acid (spare part)
Dual Relay Module (spare part)
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
Regulatory Compliance
Refrigerant Gas
Leak Alarm Panel:


UL/ULC: UL-508A
CE



CE CE marking acc. to 2004/108/EG and 2006/95/EG
UL UL 508 (Listed, File E197259), UL 60950
(Recognized, File E151273), NEC Class 2 for 6EP13321SH42
FM Class I, Division 2, Groups A,B,C,D, T4
GL Approval for shipbuilding to Germanischer Lloyd
ABS Approval for shipbuilding to American Bureau of
Shipping for 6EP1322-1SH02 und 6EP1332-1SH42
ATEX ATEX94/9/EC Kat.3;Ex, nA IIC T3














UL 1638 (strobe) and UL 464 (horn)
UL Listed:
1638 (strobe)
464 (horn)
S4011 (chimes, horn strobes, horns)
S3593 (outdoor and alert strobes)
FM Approved:
3023572
MEA Approved:
MEA452-05-E
State of California State Fire Marshall:
7300-1653:187 (outdoor strobes)
7125-1653:188 (horn strobes, chime strobes)
7135-1653:189 (horns, chimes)

N/A




UL 1638 (strobe) and UL 464 (horn)
UL Listed:
1638 (strobe)
464 (horn)
24VDC Supply



Horn/Strobe Alarm:
Manning AirScanTM
IR Refrigerant
Sensor
System Sensor
Outdoor
Horn/Strobe
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT










S4011 (chimes, horn strobes, horns)
S3593 (outdoor and alert strobes)
FM Approved:
3023572
MEA Approved:
MEA452-05-E
State of California State Fire Marshall:
7300-1653:187 (outdoor strobes)
7125-1653:188 (horn strobes, chime strobes)
7135-1653:189 (horns, chimes)

UL Recognized Components: files MH19884 (B & B
Battery), MH20567 (UPG, previously Jolt), MH20845
(Power-Sonic).
Battery Backup
Panel:
BAT-12260
Note:
The listings and approvals below apply to BAT Series Batteries. In some
cases, certain modules may not be listed by certain approval agencies, or
listing may be in process. Consult factory for latest listing status.
CHG-75 Battery
Charger






UL Listed
S1287
MEA
297-01-E
California State Fire Marshal
7315-0075:201 (power units)

UL Listed
Piezoelectric Buzzer
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Part # LKDT-PNL-1; LKDT-BATT-BCKP-KIT
The material in this document is for information purposes only. The content and the product it describes
are subject to change without notice. Novar makes no representations or warranties with respect to this document.
In no event shall Novar be liable for technical or editorial omissions or mistakes in this document, nor shall it be liable
for any damages, direct or incidental, arising out of or related to the use of this document. No part of this document
may be reproduced in any form or by any means without prior written permission from Novar.
Copyright © 2011 by Honeywell International, Inc.. All Rights Reserved.
Novar
6060 Rockside Woods Blvd.,
Cleveland, OH 44131
Phone: 1.800.348.1235
www.novar.com
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