CORE Pre-Engineered Fire Protection System
Installation, Operation, and Maintenance Manual
RECEIVING AND INSPECTION
Upon receiving unit, check for any interior and exterior damage, and if found, report it
immediately to the carrier. Also check that all accessory items are accounted for and are
damage free.
WARNING!!
Installation of this module should only be performed by a qualified professional who has read
and understands these instructions and is familiar with proper safety precautions. Improper
installation poses serious risk of injury due to electric shock and other potential hazards. Read
this manual thoroughly before installing or servicing this equipment. ALWAYS disconnect
power prior to working on module.
ONLY CORE CERTIFIED PERSONNEL MAY INSTALL, PERFORM
MAINTENANCE AND REPAIRS ON CORE SYSTEMS.
Save these instructions. This document is the property of the owner of this equipment and is
required for future maintenance. Leave this document with the owner when installation or service
is complete.
A0011052
March 2018 Rev. 56
2
Table of Contents
WARRANTY ...................................................................................................................................................................................... 4
CERTIFICATIONS AND PATENTS ................................................................................................................................................... 4
Listing ........................................................................................................................................................................................... 4
Patents .......................................................................................................................................................................................... 4
INSTALLATION ................................................................................................................................................................................. 5
Mechanical .................................................................................................................................................................................... 5
Self-Cleaning System Options .................................................................................................................................................. 5
CORE Total Flood Fire System Options .................................................................................................................................... 5
Plumbing Connections for CORE Total Flood Protection........................................................................................................... 7
Piping Loss Calculation for Wall Mount CORE Total Flood Protection Fire Systems ................................................................. 8
Electrical ..................................................................................................................................................................................... 14
Wiring Distance Limitations ..................................................................................................................................................... 15
Fire Alarm Contacts ................................................................................................................................................................ 15
Fire Group .............................................................................................................................................................................. 16
CORE Duct and Plenum Coverage ............................................................................................................................................. 17
CORE Total Flood Coverage ....................................................................................................................................................... 18
Hazard Zone and Nozzle Placement ....................................................................................................................................... 18
Appliance Coverage Details .................................................................................................................................................... 19
Upright Broiler Protection ........................................................................................................................................................ 21
Range Top Protection ............................................................................................................................................................. 22
Wok Protection ....................................................................................................................................................................... 23
Large Wok Protection ............................................................................................................................................................. 24
Salamander Protection ........................................................................................................................................................... 25
Large Appliance Protection ..................................................................................................................................................... 26
Large Industrial Fryer Protection ............................................................................................................................................. 27
OPERATION ................................................................................................................................................................................... 28
Self-Cleaning Hood ..................................................................................................................................................................... 28
Self-Cleaning System Overview .................................................................................................................................................. 28
Self-Cleaning Hood Start Up ....................................................................................................................................................... 30
Start Up Procedure – Self-Cleaning Hood ............................................................................................................................... 30
CORE Protection Fire System ..................................................................................................................................................... 32
CORE Protection Test Mode Overview........................................................................................................................................ 32
CORE Protection Reset Overview ............................................................................................................................................... 32
CORE Total Flood Fire System Overview.................................................................................................................................... 35
CORE Total Flood Protection Fire System Start Up..................................................................................................................... 36
Start Up Checklists ...................................................................................................................................................................... 36
Self -Cleaning Hood Start Up Checklist ................................................................................................................................... 36
CORE Protection System Start Up Checklist........................................................................................................................... 37
CORE Protection System Reset Checklist .............................................................................................................................. 37
Component Description ............................................................................................................................................................... 38
Self-Cleaning Spray Bar/CORE Duct and Plenum Coverage .................................................................................................. 38
CORE Protection Fire System Printed circuit board ................................................................................................................ 48
DIP Switch Settings ................................................................................................................................................................ 49
Typical CORE DIP Switch Arrangement.................................................................................................................................. 50
Appliance Shutdown in Fault Conditions ................................................................................................................................. 51
CORE Protection Supervised Loops ....................................................................................................................................... 52
CORE Protection Firestat ............................................................................................................................................................ 53
Non-Solid Fuel Appliances ...................................................................................................................................................... 53
Solid Fuel Appliances ............................................................................................................................................................. 53
CORE Protection Manual Actuation Device ............................................................................................................................ 54
Surfactant Tank ...................................................................................................................................................................... 54
CORE Protection Waterline Supervision ................................................................................................................................. 55
Battery Backup ....................................................................................................................................................................... 56
Heat Recovery Coil (Optional)................................................................................................................................................. 57
Troubleshooting .......................................................................................................................................................................... 59
Self-Cleaning Hood Troubleshooting Chart ............................................................................................................................. 59
CORE Protection Fire System Troubleshooting Chart ............................................................................................................. 60
MAINTENANCE .............................................................................................................................................................................. 61
General Maintenance .................................................................................................................................................................. 61
Every 6 months ........................................................................................................................................................................... 61
Every 2 Years.............................................................................................................................................................................. 61
Decommissioning ........................................................................................................................................................................ 61
After A Fire ............................................................................................................................................................................. 61
Start-Up and Maintenance Documentation .................................................................................................................................. 62
CORE System Verification .......................................................................................................................................................... 62
MAINTENANCE RECORD .............................................................................................................................................................. 64
3
WARRANTY
This equipment is warranted to be free from defects in materials and workmanship, under normal use and
service, for a period of 24 months from date of shipment. This warranty shall not apply if:
1. The equipment is not installed by a certified CORE qualified installer per the MANUFACTURER’S
installation instructions shipped with the product.
2. The equipment is not installed in accordance with federal, state and local codes and regulations.
3. The equipment is misused or neglected, or not maintained per the MANUFACTURER’S
maintenance instructions.
4. The equipment is not operated within its published capacity.
5. The invoice is not paid within the terms of the sales agreement.
The MANUFACTURER shall not be liable for incidental and consequential losses and damages potentially
attributable to malfunctioning equipment. Should any part of the equipment prove to be defective in material
or workmanship within the 24 month warranty period, upon examination by the MANUFACTURER, such
part will be repaired or replaced by MANUFACTURER at no charge. The BUYER shall pay all labor costs
incurred in connection with such repair or replacement. Equipment shall not be returned without
MANUFACTURER’S prior authorization and all returned equipment shall be shipped by the BUYER, freight
prepaid to a destination determined by the MANUFACTURER.
CERTIFICATIONS AND PATENTS
Listing
The CORE Fire Protection System is a Pre-Engineered system that is ETL Listed to UL Standard 300 and
ULC/ORD-C1254.6-1995; meets requirements of NFPA 96 (Standard for the Installation of Equipment for
the Removal of Smoke and Grease-Laden Vapors from Commercial Cooking Equipment); NFPA 17A
(Standard on Wet Chemical Extinguishing Systems).
Patents
The CORE Pre-Engineered Fire Protection System is a Patented Product, Patent No. 7963282 and
8378834.
4
INSTALLATION
It is imperative that this unit is installed and operated with the designed airflow and electrical supply in
accordance with this manual. If there are any questions about any items, please call the service department
at 1-866-784-6900 for warranty and technical support issues.
Mechanical
WARNING: APPLY THE APPROPRIATE WATER PRESSURE AND TEMPERATURE TO ALL FITTINGS
TO PREVENT LEAKAGE AND COMPONENT FAILURE. SYSTEM MUST BE INSTALLED IN
CONDITIONED SPACE BETWEEN 32°F AND 130°F
Ensure there is 36 Inches of service clearance to the front of the panel. The panel shall also be
located in an accessible area where the audible and visual alarms can be heard and seen.
IMPORTANT!!
CORE Protection water connection requires a supervised supply line. This must be connected
immediately downstream from the building main shut-off valve or building sprinkler system. The main
shut-off valve must be supervised. A minimum water operating pressure (while the hood is spraying)
must be achieved at the hood, based off Table 1.
Self-Cleaning System Options
In self-cleaning mode, the hot water solenoid opens allowing hot water to flow to the duct and plenum of
the hood. Surfactant is injected at a rate of one second per minute of wash. The diagram below shows the
Hot Water side of the utility cabinet mounted manifold that is activated during the “wash” cycle. The CORE
sprinkler water solenoid remains closed during the wash cycle.
The Appliance solenoid remains closed on top of the hood preventing hot water from spraying on the
appliances. Hot Water only flows to the duct and plenum area during the self-cleaning cycle.
The hot water fully integrated self-cleaning system uses the basic manifold with the addition of a detergent
pump and timers to control the system. When the fan power switch is turned off, the system sprays and
injects surfactant into the plenum for cleaning. The length of the wash cycle and surfactant injection are
adjustable. It is recommended that the wash time be 3 minutes and detergent injection is 1 second every
minute.
Operating water pressure for the self-cleaning function is dependent on the total equivalent length of hood,
and generally fall between 30 to 70 psi. The maximum static pressure is 125 psi. Hot water temperatures
must be between 140° F to 170 °F.
CORE Total Flood Fire System Options
In a fire condition, the CORE water solenoid is open, allowing sprinkler water to flow through the manifold.
The surfactant is injected continuously throughout the fire system activation. The diagram below shows
the Sprinkler Water side of the utility cabinet mounted manifold that is activated during a “fire” condition.
The hot water solenoid remains closed during a fire condition.
The appliance solenoid on top of the hood opens, allowing water to flow to the duct, plenum, and appliance
spray bar.
Primary water sprinkler fire protection for commercial kitchen hoods. Duct, plenum, and appliance fire
system protection is provided by this option per UL300. Appliance protection provided by total flood
protection. Duct mounted sensor electronically activates the water spray system to extinguish duct, plenum,
and appliance fires.
Operating water pressure varies dependent on length of hood, and generally falls between 30-70 psi when
water is spraying. Max water static pressure is 125 psi.
IMPORTANT!!
Filters must be installed for proper system operation. Filters can be removed once the system is off.
5
Figure 1 – Self-Cleaning with CORE Protection Fire System
Plugged end.
Removable for back to
back or end to end
hoods
Spray plumbing for
riser nozzle.
Firestat for Automatic Fire
System Activation
(One Per Riser)
Duct and Plenum
Spray Bar
located inside
hood.
Water
Manifold
Features:

Easily serviced

Automatic operation

Backflow prevention

Adjustable wash time

Serviceable internal strainers

Adjustable surfactant injection
timing and quantity
Surfactant
Tank
Electrical
Control
Package
(ECP)
Figure 2 – CORE Total Flood Fire System
Plugged end.
Removable for back to
back or end to end
hoods
Firestat for Automatic Fire
System Activation
(One Per Riser)
Spray plumbing for
riser nozzle.
Duct and Plenum
Spray Bar
located inside
hood.
Water
Manifold
Features:

Easily serviced

Automatic operation

Backflow prevention

Adjustable wash time

Serviceable internal strainers

Adjustable surfactant
injection timing and quantity
Surfactant
Tank
Electrical
Control
Package
(ECP)
6
Plumbing Connections for CORE Total Flood Protection
Several field plumbing connections are required for proper self-cleaning with CORE Total Flood Protection
fire system hood operation. It is recommended that all plumbing connections be sealed with Teflon tape or
pipe dope. Use care not to contaminate the interior surfaces of the water lines when plumbing the unit, as
small particulate can clog the orifices of the spray nozzles.
1.
All incoming plumbing connections are connected to the top of the CORE manifold via quick-seals,
or bell reducing couplings if the incoming pipe diameter is larger than the CORE manifold pipe
diameter. The hot water line can be PVC, copper, or stainless steel pipe only. If PVC is utilized,
there must be a minimum of 10 ft of copper, or stainless steel pipe from the manifold to the PVC
connection. The CORE water line must be copper, or stainless steel, or steel only. See Figure 1
and Figure 4 for details.
2.
Self-cleaning hoods with the WC option (Hot Water Wash) require a hot water connection at 140°F
to 170°F and a minimum required PSI, per Table 1, to 70 PSI operating pressure. If the operating
pressure is greater than 70 PSI, a water regulator must be connected. Max water static pressure
is 125 PSI. Typical water flow rate is 0.7 GPM per foot of hood. The spray lasts for a factory setting
of 3 minutes every time the fans are switched off.
3.
A supervised water supply must be connected to the CORE inlet. This requires an unheated water
connection per the minimum required PSI, per Table 3, to 70 PSI operating pressure. Water
pressure may not drop below the minimum recommended PSI while the hood is spraying. Pressure
may not rise above 70 PSI when the hood is spraying. If the operating pressure is greater than 70
PSI, a water regulator must be connected. Max water static pressure is 125 PSI. Typical water
flow rate is 1.5 GPM per foot of hood. The water connection must be minimum ¾” pipe. This must
be connected to a water supply line immediately downstream from the building main shut-off valve
or a fire sprinkler system. This main valve must be continuously supervised. If the CORE water
supply is connected to the building sprinkler system, it is preferred that the connection be from the
main sprinkler riser, or a branch line as long as the CORE system is calculated in the overall
sprinkler system capacity. For domestic water supply if other appliances are connected to the
CORE water supply line, those appliance must be operated during CORE system testing and taken
into consideration when calculating the size of the water pipe. See Table 3 for hood length and
pressure requirements.
4.
If multiple hoods are arranged in an end-to-end or back-to-back arrangement, plumbing connecting
the hoods must be piped in the field. The plugged end of the Appliance and Plenum spray bars is
used to do this. Remove the plugs on the main hood and the adjacent hood and simply pipe the
Appliance spray bars together and Plenum spray bars together. It is important to not cross connect
the spray bars.
5.
If a remote mounted manifold is used with CORE Total Flood Protection, the appliance solenoid
will be installed at the plant.
6.
There is also a non-pressurized 1-1/2 inch drain connection that must be piped. This allows water
to drain from the hood grease trough. It must be connected to the building grease trap. Hoods 10’
in length (or greater) will require 2 drains. 24” tall hoods with 20” filters will require 2 drains. All other
hoods will require 1 drain. See Figure 5 for details.
7.
If a remote mounted manifold with backflow preventer is used, the backflow preventer drain must
be piped according to the manufacturer’s instructions.
8.
Once all supply and drain lines are connected, remove one of the nozzles and flush the lines.
Warning
All field connections between hoods, and incoming CORE Protection lines must be run with
Steel, Stainless Steel, or Copper pipe. Drain lines must be run with Brass, Stainless Steel, or
Copper Pipe. Plastic pipe cannot be used for drains, field connections between hoods, or CORE
Protection supply lines as it could fail and become hazardous.
7
Piping Loss Calculation for Wall Mount CORE Total Flood Protection Fire Systems
To ensure proper operation of the CORE Protective Fire System, the correct water pressure must be
achieved at the hood inlet per Minimum Operating Pressure for Lengths of Hood chart (see Table 3,
Table 4, or Table 5). For this to occur, proper sizing of the water line is required. Use the following steps
to calculate the piping minimum size.
Table 1 - Equivalent Pipe Length for Various Pipe Fittings
Pipe Size
Inches
3/4"
1"
1 ½"
2"
45° Elbow
90° Elbow
0.97
1.23
1.90
2.40
2.10
2.60
4.00
5.20
1. Refer to Table 3, Table 4, or Table 5 to
determine the CORE minimum psi
required at the hood inlet. Subtract this
value from the available psi at the panel
pressure gauge. Maximum panel
operating pressure is 70 psi. This will be
your maximum allowable pressure drop
for field installed pipes between the
panel and the hood.
2. Most fittings add an equivalent pipe
length to the total run. Use the chart
below to calculate the equivalent pipe
length for installed fittings. If you have
multiple fittings of one type, simply
multiply the number below by the total
number of the fitting and add to the total
run length.
3. To calculate the total flowing pressure
drop between the panel and the hood,
take the total equivalent length found in
step 2 and add the total linear field
installed pipe length.
Multiply this
number by the value found in Table 2.
Gallons per minute is calculated by
multiplying the length of the hood by 1.5
gpm, this will be the friction pressure
drop between the hood and the panel.
Tee Thru
Run
1.40
1.80
2.70
3.50
Tee Thru
Branch
4.10
5.30
8.00
10.40
Table 2 - Pressure Drop (PSI) per Equivalent Foot of
Waterline - Pipe Size
Gallons per
Minute
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
Waterline Pipe Size (PSI per foot of pipe)
3/4”
1”
1 1/2”
2”
0.028
0.008
0.001
0.000
0.102
0.029
0.004
0.001
0.216
0.062
0.008
0.001
0.368
0.105
0.014
0.002
0.556
0.159
0.022
0.003
0.779
0.223
0.030
0.004
1.036
0.296
0.040
0.006
1.327
0.379
0.052
0.008
1.650
0.472
0.064
0.009
2.005
0.573
0.078
0.011
2.391
0.684
0.093
0.014
2.809
0.803
0.110
0.016
3.257
0.931
0.127
0.019
3.736
1.068
0.146
0.021
4.244
1.213
0.166
0.024
4.782
1.367
0.187
0.027
5.350
1.529
0.209
0.030
5.946
1.700
0.232
0.034
6.572
1.879
0.256
0.037
7.226
2.066
0.282
0.041
7.909
2.261
0.309
0.045
4. Add in the pressure drop due to gravity. This must be evaluated to overcome any rise in pipe elevation
between the panel and the hood. There is .43 psi /ft of vertical rise of pressure drop.
5. Now, compare the maximum allowable pressure drop from step 1 to the calculated pressure drop from step
3. If the calculated pressure drop exceeds the maximum allowable pressure drop, increase the pipe size
and recalculate steps 2 and 3. Continue this step until the calculated pressure drop is below the maximum
allowable.
8
Field Pipe Pressure Drop Calculation Example:
Wall mount panel installed with 30 feet of ¾” linear pipe between panel and hood. (4) 90 degree elbows
are installed in the pipe run and the pipe run has a vertical rise of 5 feet. Length of end-to-end hood
system is 32 feet.
Hood System = 32 feet. Flow rate = 32 feet * 1.5 gpm = 48 gpm
Pressure required at hood = 44 psi.
Pressure at panel gauge = 50 psi.
Allowable pressure drop between panel and hoods: 50 psi – 44 psi = 6 psi
Equivalent length of pipe = 30 + 4 * 2.10 = 38.40 feet
Friction Pressure Drop through pipe = 38.40* 2.005 = 76.99 psi
Gravitational Pressure = 0.43 psi/ft * 5 feet = 2.15 psi
Total Pressure Drop in Field Pipe between panel and hood = 76.99 psi + 2.15 psi = 79.14 psi
Allowable pressure drop = 6 psi
This system will not work correctly because calculated pressure drop is greater than allowable
pressure drop. Pipe size will need to be change to 1-1/2 inch diameter.
Re-calculate with 1-1/2 inch pipe instead of ¾” pipe:
Equivalent length of pipe = 30 + 4 * 4.00 = 46 feet
Friction Pressure Drop through pipe = 46 * 0.078 = 3.58 psi
Gravitational Pressure = 0.43 psi/ft * 5 feet = 2.15 psi
Total Pressure Drop in Field Pipe between panel and hood = 3.58 psi + 2.15 psi = 5.74 psi
Allowable pressure drop = 6 psi
This system will work correctly because calculated pressure drop is less than allowable pressure
drop.
Figure 3 - Pressure Loss through Typical Water Pipe Chart
Pressure Loss Water Flow
Pressure Loss (PSI/Ft)
10
1
3/4" pipe
1" Pipe
1 1/2" Pipe
0.1
2" Pipe
0.01
1
10
100
FLOW (GPM)
9
1000
Table 3 - 3/4” Manifold Minimum Operating Pressure Requirements for Lengths of Hood
Hood of
Length
(FT)
4
8
12
16
20
24
28
32
36
40
44
48
Minimum
Inlet Water
Pressure for
Self
Cleaning
(PSI)
Minimum
Inlet Water
Pressure for
Duct &
Plenum
Protection
Only (PSI)
Duct and
Plenum
Discharge
Coefficients
(K Factor)
Minimum Inlet
Water Pressure
for CORE Total
Flood
Protection (PSI)
Total Flood
Discharge
Coefficients
(K Factor)
30
30
30
30
31
32
34
37
39
42
46
50
30
30
30
30
31
32
34
37
39
42
46
50
0.6
1.3
1.9
2.5
3.1
3.7
4.2
4.6
5.0
5.4
5.7
6.0
30
30
30
30
33
36
39
44
49
56
63
70
1.3
2.7
4.0
5.4
6.4
7.4
8.4
9.1
9.7
10.2
10.7
11.1
Table 4 - 1” Manifold Minimum Operating Pressure Requirements for Lengths of Hood
Hood of
Length
(FT)
4
8
12
16
20
24
28
32
36
40
44
48
Minimum
Inlet Water
Pressure for
Self
Cleaning
(PSI)
Minimum
Inlet Water
Pressure for
Duct &
Plenum
Protection
Only (PSI)
Duct and
Plenum
Discharge
Coefficients
(K Factor)
Minimum Inlet
Water Pressure
for CORE Total
Flood
Protection (PSI)
Total Flood
Discharge
Coefficients
(K Factor)
30
30
30
30
30
30
31
33
35
42
43
45
30
30
30
30
30
30
31
33
35
42
43
45
0.6
1.3
1.9
2.5
3.1
3.8
4.3
4.8
5.3
5.4
5.9
6.3
30
30
30
30
30
30
33
35
45
50
55
60
1.3
2.7
4.0
5.4
6.7
8.1
9.0
10.0
10.1
10.7
11.3
11.9
10
Table 5 - 1-1/2” Manifold Minimum Operating Pressure Requirements for Lengths of Hood
Hood of
Length
(FT)
4
8
12
16
20
24
28
32
36
40
44
48
Minimum Inlet
Water Pressure
for Self Cleaning
(PSI)
30
30
30
30
30
30
30
30
33
35
38
40
Minimum
Inlet Water
Pressure
for Duct &
Plenum
Protection
Only (PSI)
30
30
30
30
30
30
30
30
33
35
38
40
Duct and
Plenum
Discharge
Coefficients
(K Factor)
Minimum Inlet
Water Pressure
for CORE Total
Flood
Protection (PSI)
Total Flood
Discharge
Coefficients
(K Factor)
0.6
1.3
1.9
2.5
3.1
3.8
4.4
5.0
5.4
5.9
6.2
6.6
30
30
30
30
30
30
30
30
35
40
45
50
1.3
2.7
4.0
5.4
6.7
8.1
9.4
10.7
11.3
11.8
12.4
12.9
Note: Water pressure may not drop below the minimum required psi while the hood is spraying hot
water or for CORE. Pressure may not rise above 70 psi when the hood is spraying. If the operating
pressure is greater than 70 psi, a water regulator must be connected.
The chart above is for continuous back to back and/or end to end hood installations. If the pipe
connecting any hood contains excessive elbows or complicated paths, additional pressure may be
required to overcome this pressure loss.
Contact engineering for clarification in these
circumstances.
When additional nozzles are added to a CORE system, beyond the standard overlapping coverage,
each nozzle is equal to 1 gpm. Each nozzle is equivalent to adding 8 additional inches of hood. To
find the new pressure requirements, add the additional length to the base hood length, then refer
to the chart above based on the new equivalent hood length.
Example: When three (3) additional nozzles are added to a CORE system, the total consumption is
increase by 3 gpm. The minimum pressure requirements can be found in the chart above, by adding
24 inches to the base hood length.
To determine the minimum pressure requirements when CORE Total Flood Protection is mixed with
CORE Duct & Plenum Coverage, it is necessary to recalculate the system total hood length. The
equivalent hood length of Duct & Plenum coverage is equal to 8 inches per 1 foot.
Example: If you have a 10’-0” Hood with CORE Total Flood protection and a 12’-0” Hood with CORE
Duct & Plenum coverage, the total equivalent hood length is 10’-0” + (12’-0” * 0.75) = 19’-0”
The discharge coefficient, or “K Factor”, is used to calculate the actual GPM through the system when the
incoming pressure is above the minimum stated in Table 5. This K factor can be applied to the completed
hood assembly. The formula below will provide the Gallons per Minute discharge rate of the hood fire
system.
  =    .
11
Figure 4 – CORE Hood Top and Bottom View
Notes:
3.
IMPORTANT:
ALL WIRING BETWEEN FIRE
SENSOR AND ELECTRICAL
CONTROL PACKAGE THAT IS
ON TOP OF THE HOOD MUST
BE HIGH TEMPERATURE
WIRE (842°F / 450°C). WIRE
TYPE MG OR MGT, 16 GA
MINIMUM
1 1/2" Pipe drains
° Hoods 10'or greater in length => 2 Drains
° 24" tall hoods with 20" filters => 2 Drains
° All other hoods => 1 Drain. Read
paperwork for placement
36"
Maximum Spacing
Duct and
Plenum
Spray Bar
Assembly
12"
Firestat for Automatic Fire System Activation
(12-F28021-005360 or 12-G28021-005500, One
Per Riser, One stat every 12 foot of hood)
Top View of Hood
3/4" Quick Seal
Plugged
1 1/2 Ø Hole
Appliance
Protection
Spray Bar
Assembly
3/4" Quick seal
1 1/2 Ø Hole
12"
2.
Bottom View of Hood
Plenum of hood must be dye
penetrant tested for leaks.
Instead of 1"OD grease drain,
hood must have 1-1/2" NPT
drains installed. Follow same
rules as the standard grease
drains. This will be dye
penetrant tested as well.
Hood lengths over 10 feet must
have center supports. This
support consists of a 3/4" tee
close pipe nipple, and a quick
seal with a cap spaced evenly
throughout the spray bar.
12"
1.
CORE
Manifold
Assembly
3 1/2"
±1/4"
3 1/2"
±1/4"
Figure 5 – Drain Assembly
HOOD DRAIN
1 1/2" X 1 1/2" NPT
4" FROM WALL TO CENTER
BOTTOM OF NIPPLE FLUSH
WITH BOTTOM OF TROUGH
- ONE END THREADED
(A0017889, WWDRAINSTUB)
SLIP NUT
(A0008527,
WWDRAINNUT)
45° ELBOW
(A0008529,
WWDRAINELBOW)
90° AND 6" PIPE NIPPLE
(A0008526, WWDRAINNIPPLE)
72" PIPE LENGTH
(A0008525,
WWDRAINPIPE)
PIPE SUPPORT
(A0012405, WWDRAINCLAMP)
MOUNTED 14" TO 16" FROM
BOTTOM OF HOOD
SECONDARY PIPE SUPPORT
REQUIRED ON VERTICAL DRAIN
(A0012405, WWDRAINCLAMP)
12
Gas Valve Installation
Gas valves are designed to shut off the flow of gas to the kitchen appliances in the event of fire system
activation. Gas valves must be installed with an upstream strainer to prevent debris from prohibiting valve
function. New pipe, properly reamed and cleaned of metal burrs is to be used. Proper care is needed to
ensure that the gas flow is in the same direction as indicated on the gas valve and strainer. Do not
overtighten pipe connections. Pipe dope is to be applied to the male threads only. If necessary, install drip
leg in gas line in accordance with the authority having jurisdiction.
Figure 6 – Electric Gas Valve
All 120V AC gas valves 3/4” through 3” can be mounted with the solenoid in any position above
horizontal.
All 24V DC gas valves 3/4” through 3” valves must be mounted with the solenoid vertical and upright; the
pipe must be horizontal.
Proper clearance must be provided in order to service the strainers, a minimum of 4” clearance distance
must be provided at the base of the strainer.
13
Electrical
WARNING!!
Disconnect power before installing or servicing control. High voltage electrical input is needed for this
equipment. A qualified electrician should perform this work.
Before connecting power to the control, read and understand the
entire section of this document. As-built wiring diagrams are
furnished with each control by the factory, and are attached either to
the door of the unit or provided with the paperwork packet.
Electrical wiring and connections should be done in accordance with
local ordinances and the National Electric Code, ANSI/NFPA70. Be
sure the voltage and phase of the power supply and the wire
amperage capacity is in accordance with the unit nameplate.
Table 6 - Copper Wire Ampacity
Wire Size AWG
14
12
10
8
6
4
Maximum Amps
15
20
30
50
65
85
ATTENTION: LOW-VOLTAGE DC OR SIGNALING WIRE SHOULD BE ROUTED IN SEPARATE
CONDUIT FROM ALL AC SOURCES
1. Always disconnect power before working on or near this equipment. Lock and tag the disconnect
switch or breaker to prevent accidental power up.
2. 120V AC should be wired to terminals H1 and N1. H1 and N1 should not be connected to a shunt
trip breaker.
3. The maximum distance between the CORE Protection System, PCU CORE Protection System,
and a Hood CORE Protection System is 1000 feet. Shielded twisted pair cable must be used for
this connection.
4. Make certain that the power source is compatible with the requirements of your equipment. The
system wiring schematic identifies the proper phase and voltage of the equipment.
5. Before connecting control to power source, verify power line wiring is de-energized.
6. Secure the power cable to prevent contact with sharp objects.
7. Do not kink power cable and never allow the cable to come in contact with oil, grease, hot surfaces
or chemicals.
8. The firestats should be wired to terminal blocks as indicated on the wiring schematic. Verify
connections on wiring schematic.
9. Before powering up the system, make sure that the interior of the control is free of loose debris or
shipping materials.
10. If any of the original internal wire supplied with the system must be replaced, it must be replaced
with type THHN wire or equivalent.
11. The battery must be plugged into the connector labeled J1 on the CORE printed circuit board after
wiring is complete.
12. It is recommended to use Belden #6320UL, 18 Gauge, plenum rated wire for the supervised loop.
13. It is recommended to use Belden #88760 for the CORE interlock network and CAT-5 for Modbus
communications.
14. All exterior wiring connections to the PCU must be run inside liquid tight conduit. This includes the
supervised loop and airflow switch wiring.
IMPORTANT!!
CORE Protection battery backup produces output power even when main power is disconnected
from system. When performing major electrical service to the control, the battery backup must
be disconnected then reconnected before commissioning.
14
Wiring Distance Limitations
Wire size is an important consideration when making the connections
between the CORE Protection Fire System and a gas valve. The chart
to the right should be consulted to verify wire gauge.
Table 7 - Maximum Distance
between CORE System and
Remote Gas Valve
Wiring connections to remote CORE Protection Fire Systems must be
done using shielded twisted pair wire. The maximum length of this
connection is 1000 feet.
Wire Gauge
Figure 7 – Interlock Wiring Reference
SHIELDED TWISTED PAIR
ILA
ILB
BK
BK
RD
RD
ILC
ILA
12
14
16
18
20
22
24
Distance in
feet
1049
660
414
260
164
103
64
ILB
ILC
RS-485 INTERLOCK NETWORK
Fire Alarm Contacts
The CORE Protection Fire System is equipped with normally open contacts that can be connected to the
premise Fire Alarm Control Panel (FACP) (terminals AL1 and AL2). During a fire condition the contacts will
close and trigger the premise FACP to initiate a general fire alarm.
Figure 8 – Alarm Contacts Reference
15
Fire Group
Fire Groups are for the purpose of using multiple CORE systems, and grouping specific CORE systems
together. This will allow the user the ability to assign different zones for independent activation.
In order to set a fire group, you will need to set the CORE board DIP switch setting to:
DIP Switch position
6
Open
Closed
Open
Closed
7
Open
Open
Closed
Closed
Fire group number
1
2
3
4
Note: Every panel with matching fire group settings (DIP switches 6 and 7) will activate
simultaneously in a fire condition.
An example of different zones on separate fire groups, but still connected via the interlock network. In the
example, when 2 Fire groups (01 and 02) are assigned on the CORE boards, and if a fire condition exists
in any one group, it will NOT activate the other fire group although both are connected to the same
interlock network.


Fire Group 01 CORE board DIP switch setting will be set to: Switch 6 Open, and Switch 7 Open.
Fire Group 02 CORE board DIP switch setting will be set to: Switch 6 Closed and Switch 7 Open.
See Typical CORE DIP Switch Arrangement on page 50, for setting multiple system CORE boards.
Figure 9 – Fire Group Reference
16
CORE Duct and Plenum Coverage
The CORE Protection System for Duct and Plenum coverage can be utilized when specific appliances do
not require total flood protection. When enclosed appliances such as ovens are used duct and plenum
coverage still offers protection for the plenum of the hood, as well as the ductwork.
Figure 10 - Duct and Plenum
Bottom View of Hood
IMPORTANT:
ALL WIRING BETWEEN FIRE
SENSOR AND ELECTRICAL
CONTROL PACKAGE THAT IS
ON TOP OF THE HOOD MUST
BE HIGH TEMPERATURE
WIRE (842°F / 450°C). WIRE
TYPE MG OR MGT, 16 GA
MINIMUM
1 1/2" Pipe drains
° Hoods 10'or greater in length => 2 Drains
° 24" tall hoods with 20" filters => 2 Drains
° All other hoods => 1 Drain. Read
paperwork for placement
Firestat for Automatic Fire System Activation
(12-F28021-005360 or 12-G28021-005500, One
Per Riser, One stat every 12 foot of hood)
Top View of Hood
3/4" Quick seal
1 1/2 Ø Hole
12"
12"
Duct and
Plenum
Spray Bar
Assembly
Duct and
Plenum
Manifold
Assembly
3/4" Quick Seal
Plugged
1 1/2 Ø Hole
3 1/2"
±1/4"
3 1/2"
±1/4"
17
CORE Total Flood Coverage
The CORE Protection System for appliances depends on proper placement of the fire suppression nozzles.
The fire system can be tailored to suit the individual needs of the appliances. It is important to remember
that the nozzles will need an unobstructed path to the cooking surface for proper fire suppression. The
overall cooking surfaces of the appliances under the hood are called the hazard zone and will determine
the fire protection system.
Hazard Zone and Nozzle Placement
The Hazard Zone consists of the cooking surface of each appliance underneath each hood. All appliances
outlined in UL300 and on the chart on the following page are suitable to be covered with the CORE total
flood system. There are specific branch appliance drop requirements for upright charbroilers and
salamanders. The lowest and highest cooking surface will determine the height of the fire suppression
nozzles. This nozzle height can range between 30 and 55 inches. For applications where the appliance is
vertical, such as an upright char broiler, the nozzle setup will need to be adjusted. The sections below
contain more detailed information about the Total Flood system.
Proper placement of the appliance hazard zone will maximize the performance of the fire system. There
are several factors which need to be accounted for when placing the appliances under the fire system, such
as the front and side overhang measurements of the hoods with respect to the hazard zone, and the
appliance clearances to combustibles. The common line placement will depend on where the appliance
hazard zone is installed under the hood. The common line is a 3/4” NPT line typically installed 24” off the
back of the hood and will supply the nozzles. This line can be extended to additional CORE Protection
hoods to continue the coverage of the hazard zone to a maximum of 48 feet.
The nozzles must be positioned along the hood length to allow Total Flood of each appliance in the
hazard zone. The nozzles must be no more than 12” away from the end of the hazard zone and the
nozzles cannot be spaced further than 36” from each other. The nozzle must be no more than 18” away
from the front or back of the hazard zone. The pipe for the nozzle drops cannot be sleeved in stainless
steel, but can be made from polished stainless steel or polished chrome plated black iron. See Figure 4.
18
Appliance Coverage Details
Table 8 below illustrates the maximum permitted cooking surface depth to be covered by one row of CORE
Protection nozzles for each individual appliance. Multiple or larger appliances may be covered under
alternate nozzle configurations of the CORE Total Flood system. The maximum length of the hazard zone
is 48 feet. It is important to note that the cooking surface is different than the appliance size.
Table 8 – Appliance Coverages
Fuel Source
Maximum Depth
of Cooking
Surface
Maximum Length
of Cooking
Surface
Maximum Height
of Fuel
Gas or Electric
26.75 inches
26.75 inches
N/A
Gas or Electric
28 inches
41 inches
N/A
Gas or Electric
21 inches
14 inches
N/A
Gas or Electric
24 inches
Unlimited
N/A
Gas or Electric
36 inches
Unlimited
N/A
Gas or Electric
27 inches
Unlimited
N/A
Gas or Electric
25 inches
Unlimited
N/A
Charcoal
Mesquite or
Hardwood
24 inches
Unlimited
8 inches
24 inches
Unlimited
8 inches
Lava Rock Char-Broiler (5)
Gas or Electric
24 inches
Unlimited
8 inches
Wok (6)
Gas or Electric
11 inch to 20 inch
diameter
11 inch to 20 inch
diameter
5.25 inches
Appliance
Deep Fat Fryer
(with or without dripboard) (3) (7)
Multi Vat Fryer
(with or without dripboard) (3)
Split Vat Fryer
(with or without dripboard) (3)
Griddle
Char-Broiler
(Radiant or Standard)
Up-Right Char-Broiler
(Upright, Salamander, Chain)
Cook Range
(with or without back shelf) (4)
Natural Charcoal Broiler (5)
Solid Fuel Char-Broiler (5)
Notes:
1. All dimensions above are based off total flood, overlapping protection.
2. All dimensions and areas above are referencing the cooking surface of the appliance, which is
typically smaller than the outside dimensions of the appliance itself.
3. Deep Fat Fryers, Multi Vat Fryers, and Split Vat Fryers are permitted to have a drip-board.
4. The Cook Range may have an integral back shelf that protrudes no more than 12 inches from the
back of the appliance. The shelf is to be at least 18 inches above the cooking surface. The cooking
surface of the range is defined as the raised portion of the appliance grating encompassing the
burners as identified on the range detail on the following pages. The grating dimension may extend
beyond this.
5. Dimensions above for the Natural Charcoal Broiler, Solid Fuel Char-Broiler and Lava Rock CharBroiler are referencing the metal housing containing the fuel source. All solid fueled appliances
must have additional firestat(s) mounted as near to the fan as possible, if duct run is longer than
10 feet or horizontal. See Figure 42 for more information.
6. If a Wok exceeds 20”, Large Wok coverage must be used as outlined below. Large Wok Coverage
is for protection of Wok sizes greater than 20” up to 24” in diameter.
7. Protection for Tilt Skillets and Braising Pans are to be based on the coverage limitations provided
for deep fat fryer appliance protection. When the depth exceeds the maximum listed size for single
row protection, an additional row of nozzles may be used to provide proper coverage.
The drawings below illustrate the placement of the nozzles for CORE Total Flood. The dimension A, shown
below, can range between 30 inches to a maximum of 55 inches above the cooking surface.
19
Figure 11 – Standard Overlapping Protection
1.
2.
3.
4.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press
fittings with EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT
stainless steel or chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
Install drops at 36” maximum spacing. If the hazard zone contains separations not covered by the fire system, install
a quick seal and stainless steel plug to support the spray bar.
Drops must be installed with an internal pipe wrench, or another non-marring pipe tool.
36" MAX
36" MAX
4 7/16"
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Plug Each End
of Appliance
Manifold
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
18"
MAX
18"
MAX
DIM "A"
DIM "A"
12" MAX
Cooking
Surface
12" MAX
Cooking
Surface
36" Deep Maximum Hazard Zone
48 Feet Maximum Hazard Zone Length
Cooking Appliance
Hazard
Height
Hazard
Height
Appliances Evaluated under UL300:
Deep Vat Fryer, Griddle, Range Top, Charbroiler,
Lava Rock Charbroiler, Charcoal Charbroiler,
Mesquete Charbroiler, Upright Broiler, Wok
Figure 12 – Appliance Spray Bar Detail
1.
2.
Pipe and fittings above the hood, after the second CORE solenoid will be 1" copper pipe and 1" copper Pro-press fittings with EPDM
seals, unless noted otherwise. Pipe and fittings inside the hood capture volume will be 3/8" NPT stainless steel or chome-plated
black iron. No sleeving permitted.
Polished pipe and fittings must be installed with an internal pipe wrench or another non-marring pipe tool.
CORE Water
Inlet
Hot Water
Inlet
1" x 1/2" x 1"
Propress Tee
1/2" Copper Pipe
1/2" x 3/8" NPT
Male Copper
Propress Adapter
18"
From Back
of Hood
1" Copper PIpe and 1"
Copper Pro-press fittings
with EPDM seal beyond
Second CORE Valve
Length will Vary
Nozzle Part # 3070-3/8HH-SS10
Replacement
Cap with Lanyard
Part # 3074-1-1
20
3/8" NPT Quick
Seal
*Nozzle can be
installed directly
into Quick Seal if
height does not
exceed Nozzle
maximum height.
Part Number 30703/8HH-SS10
Plug each end
of Manifold
8 3/8"
To Common Line.
Distance will Vary Due
to Hazard Placement
1" Copper Pipe
3/8" NPT Stainless
Steel or Chromeplated Black Iron
Pipe Nipple
Upright Broiler Protection
Upright broilers, chain broilers, and cheese-melters have specific coverage requirements. Unlike
appliances with an exposed flat cooking surface, these appliances have an internal cooking surface and
only have a small opening in the face or end of the appliance.
To cover the internal hazard posed by these appliances, a nozzle must be placed at the opening and aimed
to the opposite rear corner of the appliance. This nozzle must be branched off one of the nozzle drops and
piped to the appliance opening. The drawing below illustrates how this should be accomplished. Should
the cooking surface of the appliance exceed 675 in2, an additional nozzle will be required on the opposite
of the appliance for added fire protection.
Figure 13 – Upright Charbroiler/Salamander Protection
1.
2.
3.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press fittings with
EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT stainless steel or
chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
In addition to Standard Overlapping protection, additional nozzles may be utilized for supplemental appliance specific protection.
No more than two (2) nozzles may be used on a single drop.
36" MAX
4 7/16"
36" MAX
Plug Each End
of Appliance
Manifold
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
18"
MAX
DIM "A"
Install Union in Pipe
leading to nozzle to
allow for appliance
removal and
cleaning.
DIM "A"
Nozzle aimed at
opposite interior
corner of appliance
Cooking Appliance
21
12"
MAX
Range Top Protection
Range top cooking appliances are available with multiple burner assemblies. Some ranges are equipped
with shelving behind the appliance for additional storage. For CORE Total Flood protection, this shelf
cannot overhang the appliance more than 12” from the back of the appliance.
Below is an illustration showing the position of the hood in relation to the CORE Total Flood Protection
system.
Figure 14 – Range Top Protection
1.
2.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press fittings with
EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT stainless steel or
chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
36" MAX
4 7/16"
36" MAX
Plug Each End
of Appliance
Manifold
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
18"
MAX
18"
MAX
12"
Maximum
Overhang
Cooking Appliance
DIM "A"
DIM "A"
18"
Minimum
To Cooking
Surface
Hazard
Height
Hazard
Height
22
12"
MAX
Wok Protection
Nozzle for Wok protection must be located within 12” from the left or right of the Wok and 18” from the front
or back of the Wok. The Wok diameter range for CORE protection is 11” to 20” diameter.
Figure 15 – Wok Up To 20” Diameter Protection
1.
2.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press fittings with
EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT stainless steel or
chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
36" MAX
4 7/16"
36" MAX
Plug Each End
of Appliance
Manifold
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
18"
MAX
18"
MAX
*UL300 Defines
the Wok
Cooking
Surface as 3"
below the rim
of the Wok
DIM "A"
To Cooking
Surface*
DIM "A"
To Cooking
Surface*
Hazard
Height
Hazard
Height
Cooking Appliance
23
12"
MAX
Ø20
MAX
Large Wok Protection
Standard overlapping protection must be in place following the same guidelines for standard Wok
Coverage. Overlapping Nozzle for Wok protection must be located within 12” from the left or right of the
Wok and 18” from the front or back of the Wok.
Appliance specific protection is required for a Wok with a diameter larger than 20”, not to exceed 24”. The
appliance specific coverage includes two (2) 3070-3/8HH-00120-22 nozzles, spaced 4 to 6” apart, located
inside of the wok outer circumference. This nozzle arrangement is to be located 30” from the Wok cooking
surface, defined in UL300 as 3” below the rim of the Wok.
Figure 16 – Wok Larger than 20" (Not to Exceed 24") Protection
1.
2.
3.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press fittings with
EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT stainless steel or
chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
In addition to Standard Overlapping protection, additional nozzles may be utilized for a Wok diameter larger than 20", not to
exceed 24". No more than two (2) nozzles may be used on a single drop.
36" MAX
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
3070-3/8HH-00120-SS
30”
55”
4 7/16"
36" MAX
Plug Each End
of Appliance
Manifold
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
A
18"
MAX
Part # CBI-104
18"
MAX
*UL300 Defines
the Wok
Cooking
Surface as 3"
below the rim
of the Wok
Part # CBI-110
Part # CBI-106
DIM "A"
To Cooking
Surface*
4" - 6"
Nozzle
Spacing
DIM "A"
To Cooking
Surface*
DETAIL A
SCALE 1 : 8
Cooking Appliance
Hazard
Height
APPLIANCE SPECIFIC DETAIL FOR
WOK DIAMETER LARGER THAN 20",
NOT TO EXCEED 24" REQUIRES TWO
(2) 3070-3/8HH-00120-SS NOZZLES
LOCATED INSIDE OF THE WOK
OUTER CIRCUMFERENCE
24
Hazard
Height
12"
MAX
Ø20
MAX
Salamander Protection
Salamanders have specific coverage requirements, unlike appliances with an exposed flat cooking surface,
these appliances have an internal cooking surface and only have a small opening in the face or end of the
appliance.
To cover the internal hazard posed by these appliances, a nozzle must be placed at the opening and aimed
to the opposite rear corner of the appliance. This nozzle must be branched off one of the nozzle drops with
a tee and piped to the appliance opening. No more than two nozzles can be utilized for a single drop.
Should the cooking surface of the appliance exceed 675 in2, an additional nozzle will be required on the
opposite side of the appliance for added fire protection.
An additional nozzle must be piped from a nozzle drop nearest the appliance, to cover the hazard
underneath the salamander. This nozzle is to be aimed at the centerline of the hazard zone, a minimum
of 30” away.
Figure 17 – Salamander Protection
1.
2.
3.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press
fittings with EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be
3/8” NPT stainless steel or chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
In addition to Standard Overlapping protection, additional nozzles may be utilized for supplemental appliance
specific protection. No more than two (2) nozzles may be used on a single drop.
36" MAX
4 7/16"
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
36" MAX
Plug Each End
of Appliance
Manifold
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
DIM "A"
DIM "A"
18"
MAX
18
Minimum
To Cooking
Surface
18"
MAX
Cooking Appliance
Hazard
Height
Hazard
Height
25
DIM "A"
12"
MAX
Large Appliance Protection
When the depth of the appliance cooking surface exceeds the listed sizes in the appliance coverage details
chart, it can be covered by doubling the row of overlapping protection. By doubling the rows of overlapping
protection, a greater surface area can be protected. Appliance cooking surfaces that exceed 36” in depth
will require a secondary row of appliance protection.
When providing protection for large solid-fuel appliances exceeding 24” in depth, a secondary row of nozzle
will be required.
Figure 18 – Large Appliance Protection
1.
2.
3.
4.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press
fittings with EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be
3/8” NPT stainless steel or chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
Install drops at 36" maximum spacing. If the hazard zone contains separations not covered by the fire system,
install a quick seal and stainless steel plug to support the spray bar.
Drops must be installed with an internal pipe wrench, or another non-marring pipe tool.
36" MAX
36" MAX
4 7/16"
Plug Each End
of Appliance
Manifold
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
Primary Row of
Overlapping
Protection
18"
MAX
24"
MAX
18"
MAX
Secondary Row
of Overlapping
Protection
DIM "A"
DIM "A"
12" MAX
Cooking
Surface
12" MAX
Cooking
Surface
Hazard Zone over 36" Deep require a Secondary Row of
Nozzle Protection.
Cooking
Appliance
Hazard
Height
Hazard
Height
Maximum Hazard Zone Length reduces Maximum Hood
Length Covered
Appliances Evaluated under UL300:
Deep Vat Fryer, Griddle, Range Top, Charbroiler, Lava Rock
Charbroiler, Charcoal Charbroiler, Mesquete Charbroiler,
Upright Broiler, Wok
26
Large Industrial Fryer Protection
When providing protection for large industrial fryers, the nozzles are to be spaced no greater than 24” in a
row, rows are spaced no more than 24” apart. Large Industrial Fryer coverage is limited to CORE manifolds
1” and 1-1/2” in size, and appliances with a capacity no greater than 80 gallons.
When providing protection for large solid-fuel appliances coverage is limited to CORE manifolds 1” and 11/2” in size. A double row of protection will be provided for all large solid-fuel appliances, regardless of the
appliance depth.
Figure 19 – Large Fryer Protection
1.
2.
3.
4.
Pipe and fittings above the hood, after the second CORE solenoid will be 1” copper pipe and 1” copper Pro-press
fittings with EPDM seals, unless otherwise noted. Pipe and fittings inside the hood capture volume will be 3/8” NPT
stainless steel or chrome-plated black iron. No sleeving permitted.
Nozzle heights must follow the table specifications in figure.
Install drops at 24" maximum spacing. If the hazard zone contains separations not covered by the fire system,
install a quick seal and stainless steel plug to support the spray bar.
Drops must be installed with an internal pipe wrench, or another non-marring pipe tool.
24" MAX
4 7/16"
24" MAX
Plug Each End
of Appliance
Manifold
Nozzle Heights Above Hazard Zone
Nozzle Above
Nozzle Part
Hazard (DIM A)
Number
Min
Max
3070-3/8H-SS10
30”
55”
Note: Appliance Drop Fittings may be
selaed with Pipe Dope or Teflon Tape
Primary Row of
Overlapping
Protection
18"
MAX
24"
MAX
18"
MAX
Secondary Row
of Overlapping
Protection
DIM "A"
DIM "A"
12" MAX
Cooking
Surface
12" MAX
Cooking
Surface
Hazard Zone of Large Industrial Fryers, regarless of depth,
require a Secondary Row of Nozzle Protection.
Large Industrial Fryer
Hazard
Height
Hazard
Height
Maximum Hazard Zone Length reduces Maximum Hood
Length Covered
Appliances Evaluated under UL300:
Deep Vat Fryer, Griddle, Range Top, Charbroiler, Lava Rock
Charbroiler, Charcoal Charbroiler, Mesquete Charbroiler,
Upright Broiler, Wok
27
OPERATION
Prior to starting up or operating the system, check all fasteners for tightness. Ensure that the wiring is
installed properly and that all nozzles and panels are installed.
Self-Cleaning Hood
The self-cleaning hood is designed to use hot water to wash the hood plenum and immediate duct section
every time the fan switch is switched from the “ON” position on the main control panel. When the switching
action occurs, hot water sprays along the entire length of the hood and towards the back of the hood for a
factory setting of 3 minutes. During this time, surfactant is injected into the water stream for duration of 1
second for each minute of wash time. Once the wash cycle is complete, water stops spraying and the hood
filters are to be removed and cleaned.
Self-Cleaning System Overview
In self-cleaning mode, the hot water solenoid opens allowing hot water to flow to the duct and plenum of
the hood. Surfactant is injected at a rate of one second per minute of wash. The diagram below shows the
Hot Water side of the wall mounted manifold that is activated during the “wash” cycle. The CORE sprinkler
water solenoid remains closed during the wash cycle.
Figure 20 – Wall Mount CORE Manifold, Hot Water Flow
28
The Appliance solenoid remains closed on top of the hood preventing hot water from spraying on the
appliances. Hot Water only flows to the duct and plenum area during the self-cleaning cycle.
Figure 21 – Top of Hood Connection for Wall Mount CORE Manifold, Hot Water Flow
29
Self-Cleaning Hood Start Up
Special Tools Required





AC Voltage Meter
Standard Hand Tools
Hand-held Heat Source
Surfactant (Part Number WWDETER for 4
Gallons, WWDETER-1G for 1 Gallon)

High Temperature Wire for Supervised Loop
on Hood (Type MG, White Part Number
441601C6.FE9, Black Part Number
441601C6.FE0)
Supervised Loop Wire for Off Hood
Connections (Belden Part Number 6320UL or
similar)
Jobsite Qualifications – Pre-installation Self-Cleaning Hood
1. Verify the proper amount of water pressure and flowrate is available for self-cleaning. Should the
operating and static pressures exceed our maximum listing, correctly identify and size a pressure
reducing valve.
2. Determine the pressure drop from the connection at the source to the connection at the selfcleaning manifold inlet.
3. Verify the location of the manifold, and if a backflow preventer is required.
4. Verify hot water minimum temperature rating of 140°F will be provided.
Start Up Procedure – Self-Cleaning Hood
1. Check all nozzles to make sure they are installed and tight.
2. Install all hood filters per the filter installation configuration, see
Figure 23. There are drip blanks secured to the filters to prevent
Figure 22 – CORE
water from exiting the hood between the filters.
Pressure/Temperature Gauge
3. Open all water valves to the hood.
4. Fill surfactant tank with surfactant. The “Add Surfactant” light should
not be on, once the tank is full. Prime the surfactant pump with the
push-button on the face of the electrical control package.
5. There are 2 timers that control the water wash spray and the
surfactant injection. The wash timer, which is controlled by R3 on
the CORE printed circuit board and labeled WASH, is set to 3
minutes from the factory. The surfactant timer that is fixed and
factory set for 1 second of injection during each minute of wash time.
The injection occurs at the start of each minute. The Wash timer
setting should be verified. (See section “Self-Cleaning Water Wash
Timers” for information)
6. Turn the hood fan switch to the “ON” position. Fans should
operate. If they do not, check wiring. If the hood has the cold
water mist option, cold water should begin to spray.
7. To operate the wash cycle, simply turn the fan switch off. The wash
cycle energizes automatically and will remain on for the duration of
the wash timer setting. The wash cycle may not run if the minimum
fan run time has not been met.
8. Verify that surfactant is being injected properly into the water stream.
9. Verify the pressure and temperature of the water via the
pressure/temperature gauge. See Figure 22 for a picture of the gauge.
Self-cleaning pressure should be between the required minimum psi,
from Table 1, and a maximum of 70 psi operating pressure.
10. Check all manifold pipe connections to ensure there are no water leaks.
11. Check all filters to make sure that no water is leaking back through the filters.
12. Verify that the hood grease trough is draining properly and there are
no clogs in the drain.
30
Filter Installation Configuration
The hood filters have drip blanks attached to them to prevent water leakage through the filters. The chart
below shows the location of the drip blanks and the last filter to be installed into the hood.
Figure 23 – Filter Installation Chart
31
CORE Protection Fire System
The self-cleaning hood is required to be installed to achieve CORE Protection. The daily basic operation
of the CORE Protection system is identical to the self-cleaning hood. In the event of a hood fire, CORE
Protection is activated.
If the hood Firestat installed in the riser senses a temperature hotter than its internal setpoint or if the remote
manual actuation device (push/pull station) is pushed, an electric signal is sent to the appliance protection
fire system solenoid and the hood duct and plenum water system solenoid. Two electric water solenoids
are energized allowing the flow of water to the hood duct and plenum and the appliance nozzles. At the
same time, surfactant is continually injected into the water stream to help suppress the fire.
Once the fire system is activated, a “Fire System Activated” light is illuminated on the hood control panel
and an audible alarm sounds. All gas and electric appliances under the hood must be electrically
interlocked to shut off. This is achieved via a gas valve relay and/or a shunt trip breaker. A timer is also
energized upon fire system activation. The timer is factory set for 15 minutes and keeps the duct and
plenum water spray system running for a minimum of 15 minutes. The same timer also keeps the appliance
water spray running for a minimum of 15 minutes. This is necessary to ensure complete extinguishment of
all fire potential.
The fire system is electrically operated and thus requires a battery backup system. In the event of a loss
of building electrical power, all gas and electric appliances under the hood must be electrically interlocked
to shut off. This is achieved via a gas valve relay and/or a shunt trip breaker. The battery backup will
automatically energize upon a loss of power. The battery backup will monitor the fire system circuit for up
to 24 hours and be able to operate the fire system circuit for a minimum of 30 minutes. Once power is
restored, the battery will automatically recharge.
CORE Protection Test Mode Overview
The CORE Protection System has an integrated option for testing. This test mode, when active, will shut
down the appliance coverage solenoid and prevent the water from spraying on the appliances. It will allow
activation of the fire system including the water spray in the duct and plenum, audible alarm, shunt trip
breaker (if applicable) and shut-down of appliances via gas valve reset relay. This mode will also activate
any additional CORE package attached to the system, including any Pollution Control Unit CORE Protection
systems and other hood mounted CORE Protection systems.
Please note that the appliances must be started before test mode is entered on any CORE Protection
package for proper demonstration of this function. If the CORE Protection System is left in in Test Mode
for more than 15 minutes, the appliances will be shut down. This is to prevent cooking operations from
occurring while the appliances and ventilation system are not protected.
CORE Protection Reset Overview
There are multiple actions required to reset the fire system. First, the duct Firestat must be cooled to below
its internal set point and the remote manual actuation device (push/pull station) must be reset by twisting
the button clockwise until it resets. Once both of these devices have been reset, the timer will automatically
stop the fire system once its time duration has ended. An alternative method to bypassing the timer is to
press the fire system reset button on the face of electrical control package. This will de-energize the timer
and reset the system.
NOTE: The Firestat must be cool and the remote manual actuation device (push/pull station) must
be reset for this button to work.
After a fire, full inspection by a certified professional must be conducted prior to restarting the fire syst
32
Start Up Procedure – CORE Protection Fire System
1. Perform the self-cleaning hood start-up as outlined in the Self-Cleaning Hood Manual.
2. The CORE Protection water connection must be minimum ¾” pipe. This must be connected to a
water supply line immediately downstream from the building main shut-off valve or a water fire
system. This main valve must be continuously supervised. If other appliances are connected to
the CORE water supply line, these appliances must be operated during CORE system testing,
and taken into consideration when calculating the size of the water line pipe.
3. When a solid-fuel appliance is in use, verify if additional firestats are installed. Given the
complexity of a duct run, additional firestats must be installed in all horizontal duct runs exceeding
10 feet in length, and at all 50 foot intervals.
4. Verify that additional firestat are installed at 50 Feet intervals when the duct length exceeds 50
Feet.
5. Verify remote manual actuation device (push/pull station) is protected with provided clear cover.
6. Verify CORE Protection nozzle caps are easily removed. If nozzle caps stick on the nozzles
during a fire system discharge, apply silicone lubricant to the O-ring. Use Danco 88693 lubricant.
7. Verify that all solenoid cables are secured to water lines and not touching hood.
8. Ensure there are no supervision faults being reported by the “Fire System Activated” light and
that the light flashes one brief flash every 3 seconds, indicating the CORE system is armed and
ready.
9. Ensure that the maximum water static pressure on the panel is less than 125 psi.
NOTE: Activating a CORE system will also activate any other CORE, PCU or HOOD fire system that
is connected to the same fire group system. Ensure that all other systems are ready to be tested
by placing the system panels in the test mode and ensuring hood filters and drains are in place.
Start Up Procedure – Firestat Activation
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Place any PCU CORE panel (if present) in “Test Mode”.
Place Hood CORE Package in Test Mode to prevent Appliances from getting wet.
Remove a hood filter directly below the Firestat.
Use a portable heat source to apply heat to the duct Firestat. Heat should activate the fire system
and water should begin to spray. The use of a torch or flame, is strictly prohibited. Air pressure
may exit the appliance drops.
Replace the filter and allow the water to spray while reviewing the system.
Verify that the water operating pressure is the required minimum psi, from Table 1, and 70 psi
maximum.
Verify that surfactant is constantly being injected into the water stream.
Verify that all gas and electric cooking appliances have been disabled.
Verify that the “Fire System Activated” light illuminates on the control panel and that the audible
alarm is sounding.
If all of the above is confirmed, reset the fire system by pressing the button on the face of the
electrical control package.
Place the PCU CORE panel (if present) in “Armed Mode”.
Place Hood CORE Package in “Armed Mode”.
IMPORTANT!!
The use of a torch or flame to test the CORE System Firestats, is strictly prohibited.
33
Start Up Procedure – Remote Manual Actuation Device Activation
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Place the PCU CORE panel (if present) in “Test Mode”.
Place the Hood CORE Package in “Test Mode”.
Lift clear, protective cover and depress pushbutton until it latches.
Verify that the water operating pressure is the required minimum psi, from Table 1, and 70 psi
maximum.
Verify that surfactant is constantly being injected into the water stream.
Reset the remote manual actuation device (push/pull station). Lift clear, protective cover and rotate
pushbutton clockwise to release pushbutton.
Verify that all gas and electric cooking appliances have been disabled.
Verify that the “Fire System Activated” light illuminates on the control panel and that the audible
alarm is sounding.
If all of the above is confirmed, reset the fire system by pressing the button on the face of the
electrical control package.
Place the PCU CORE panel (if present) in “Armed Mode”.
Place Hood CORE Package in “Armed Mode”.
Start Up Procedure – Battery Back Up
1. Place the PCU CORE panel (if present) in “Test Mode”
2. Place the Hood CORE Package in “Test Mode”.
3. Remove 120V AC to the hood control panel by shutting down the circuit breaker to the panel. After a few
seconds, the “Fire System Activated” light will flash a power failure supervision fault code (11 flashes
followed by a pause).
4. Lift clear, protective cover and depress pushbutton until it latches.
5. Verify that the water operating pressure is the required minimum psi, from Table 1, and 70 psi maximum.
6. Verify that surfactant is constantly being injected into the water stream.
7. Reset the remote manual actuation device (push/pull station). Lift clear, protective cover and rotate
pushbutton clockwise to release pushbutton.
8. Verify that all gas appliances have been disabled. In the event of power loss to the building electric
appliances will be disabled.
9. If all of the above is confirmed, reset the fire system by pressing the button on the face of the electrical
control package.
10. Reset the circuit breaker applying power to the hood panel.
11. Place the PCU CORE panel (if present) in “Armed Mode”.
12. Place the Hood CORE Package in “Armed Mode”. “Fire System Activated” light will begin flashing one
brief flash every 3 seconds, indicating the CORE system is armed and ready.
Start Up Procedure – Final
1. Verify that the “Fire System Activated” light is flashing one brief flash every 3 seconds, indicating
the CORE system is armed and ready.
2. Verify that remote manual actuation device (push/pull station) is reset.
3. Fill the surfactant tank with surfactant.
Reset Procedure – CORE Protection Fire System
1. Fully inspect system to make sure fire is extinguished.
2. If fire is out, Firestat should be cool.
3. Reset remote manual actuation device (push/pull station) if tripped.
4. If Firestat is cool and the remote manual actuation device (push/pull station) has been reset, the
CORE system will automatically reset once fire system timer expires after 15 minutes. Alternatively,
the reset button on the face of the electrical control package can be pressed to reset system.
5. Fill the surfactant tank with surfactant.
6. Inspect or replace the appliance coverage nozzles.
7. Inspect all piping and connections, hood lights, wiring, and hood insulation for integrity.
34
CORE Total Flood Fire System Overview
In a fire condition, the CORE water solenoid is open, allowing sprinkler water to flow through the manifold.
The surfactant is injected continuously throughout the fire system activation. The diagram below shows
the Sprinkler Water side of the wall mounted manifold that is activated during a “fire” condition. The hot
water solenoid remains closed during a fire condition.
Figure 24 – Wall Mount CORE Manifold, Cold Water Flow
The appliance solenoid on top of the hood opens, allowing water to flow to the duct, plenum, and appliance
spray bar.
Figure 25 – Top of Hood Connection for Wall Mount CORE Manifold, Cold Water Flow
35
CORE Total Flood Protection Fire System Start Up
This is the test method for hoods with CORE Total Flood Protection. For CORE Protection with separate
appliance coverage, see previous section.
Special Tools Required





AC Voltage Meter
Standard Hand Tools
Hand-held Heat Source
Surfactant (Part Number WWDETER for 4
Gallons, WWDETER-1G for 1 Gallon)
Silicone Lubricant, Danco 88693


High Temperature Wire for Supervised Loop
on Hood (Type MG, White Part Number
441601C6.FE9, Black Part Number
441601C6.FE0)
Supervised Loop Wire for Off Hood
Connections (Belden Part Number 6320UL or
similar)
Jobsite Qualifications – Pre-installation CORE Protection Fire System
1. Verify the source for the CORE water supply (domestic or sprinkler), and determine the pressure
drop from the connection at the source to the connection at the CORE manifold inlet.
2. Verify the proper amount of water pressure and flowrate is available for CORE Protection. Should
the operating and static pressures exceed our maximum listing, correctly identify and size a
pressure reducing valve.
3. Verify if a shutoff valve will be required on the CORE supply line.
4. Verify the manifold location, and if a backflow preventer is required.
5. Verify the availability of a grease drain and grease trap size.
6. Verify there is access to the top of the hood.
7. Verify a network connection for CASLink.
8. Verify duct location.
Start Up Checklists
Self -Cleaning Hood Start Up Checklist
Action
Completed
(Yes/No)
Check All Nozzles for Tightness
Open all Valves to Hood
Fill Surfactant Tank
Prime Surfactant Pump
Set All Timers
Check Fan Operation
Operate Wash Cycle
Verify Surfactant Pump Operation
Verify Operating Hot Water Pressure (Table 1)
Verify Max Water Static Pressure (125 PSI)
Verify Min Hot Water Temperature (140°F)
Check For Leaks in Manifold
Check For Leaks through Filters
Verify that Water is Draining Properly
36
Result
CORE Protection System Start Up Checklist
Action
Completed
(Yes/No)
Result
Completed
(Yes/No)
Result
Self-Cleaning Startup Complete
Main Water line ¾” or Larger
Main Water Line from Supervised Supply
“Fire System Activated” light flashing ready code
(1 short flash every 3 seconds)
Test Firestat System Activation
Test Remote Manual Actuation Device (push/pull station)
System Activation
Verify Manual Actuation Device Cover Installed
Verify Water Pressure (Table 1)
Verify Max Water Static Pressure (125 PSI)
Verify Constant Surfactant Injection
Verify Appliance System Activates
All Gas and Electric Appliances Shut Down
Fire System Activated Light Illuminates
Audible Alarm Sounds
Verify Reset Button Works Correctly
System Activates on Battery Backup
Verify Surfactant Tank is Full
Verify Appliance System Test Switch is in Armed Mode
Reset Remote Manual Actuation Device (push/pull station)
CORE Protection System Reset Checklist
Action
Ensure Fire is Extinguished
Reset Remote Manual Actuation Device (if pushed)
Press The CORE Reset Button
Verify Surfactant Tank is Full
Verify Appliance System Test Switch is in Armed Mode
Inspect or replace All Appliance Nozzles After a Fire
Inspect All Piping Connections After a Fire
Inspect All Hood Lights After a Fire
Inspect All Wiring and Hood Insulation After a Fire
37
Component Description
The following section lists the major controls and components used in the self-cleaning hood and the CORE
Protection fire system.
Self-Cleaning Spray Bar/CORE Duct and Plenum Coverage
The self-cleaning hood contains a spray bar that extends the entire length of the hood immediately behind
the filters in the hood. The bar is ¾” brass fittings with nozzles that spray directly toward the back of the
hood. The same spray bar is used in hot water wash, cold water mist and CORE Protection fire systems.
Water enters the spray bar through a ¾” quick-seal. The other end of the spray bar is plugged. If hoods
are installed back-to-back or end-to-end, the plugged end of the spray bar can be un-plugged and
connected to the next spray bar.
Figure 26 – Spray Bar Assembly
38
Water Manifolds
The self-cleaning with CORE Protection fire system has one hot water connection and one supervised
water source connection for CORE. Figure 27 through
Figure 40 show self-cleaning hood and CORE Protection manifold component details.
Figure 27 – Hood Mounted Utility Cabinet
39
Figure 28 - 3/4" Self-Cleaning with CORE Total Flood Protection Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 5". This is noted below with an *.
Valves can be rotated for best fit inside cabinet
Thin wall copper tubing to be run to the coupling near the pump to #21. 1" of plastic tubing is used
between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G005-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G005-24VDC many be used an in alternative.
Slow-Close Solenoids can NOT be used as an Appliance Solenoid in this location.
7.
8.
9.
10.
23
See Note #10
10
9
12
5
16
12
3
1*
16
15
6*
4
2*
Note: Slow-Close Solenoid NOT
to be used in this location
15
10
See Note #5
18
4
Separate here
for Installation
into Hood
10
3 5/16"
8
13
8
19
23 3/16"
12
17
3 5/16"
24
22
23
See Note #8
CORE WATER
Connection to
Appliance Drops
11
HOT WATER
16
21
21 7/16"
20
18 9/16"
14
See Note #9
10
9
7
9
Figure 29 - 1" Self-Cleaning with CORE Total Flood Protection Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 3". This is noted below
with an *.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
Thin wall copper tubing to be run to the coupling near the pump to #23. 1" of plastic tubing is
used between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G007-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G007-24VDC may be used as an alternative.
Slow-Close Solenoids can NOT be used as an Appliance Solenoid in the location.
26
See Note #10
24
12
9
10
12
17
6
8
4*
18
11
2*
15
3
See Note #5
Separate here
for Installation
into Hood
20
9
16
Note: Slow-Close Solenoid NOT
to be used in this location
12
13
19
See Note #8
21
22
5
3 1/8"
26
3 1/8"
23
24
14
16
6
25
See Note #9
19 11/16"
40
24 1/8"
21 7/8"
CORE WATER
HOT WATER
Connection to
Appliance Drops
17
Figure 30 - 1-1/2" Self-Cleaning with CORE Total Flood Protection Manifold Detail
Notes:
1.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
2.
Length and width of manifold must match measurements listed on this page.
3.
All pipe nipples are close unless otherwise noted.
4.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
5.
Thin wall copper tubing to be run to the coupling near the pump to #16. 1" of plastic tubing is used
between coupler and pump.
6.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
7.
Optional Slow-Close Solenoid Part # SC8221G011-120VAC may be used an an alternative.
8.
Optional Slow-Close Solenoid Part # SC8221G011-24VDC may be used an an alternative.
9.
Gauge to be piped per Detail A, so that the face is visible when mounted in the Hood Utility Cabinet.
10.
Slow-Close Solenoids can NOT be used as an Appliance Solenoid in this location.
24
See Note #10
23
25
12
9
26
2
2
12
6
27
17
10
15
See Note #9
17
HOT WATER
DETAIL A
SCALE 1 : 4
4
8
15
Note: Slow-Close Solenoid
to be used in this location
See Note #4
20
13
16
3
22
3 3/4"
18
A
13
28 3/8"
25 7/8"
5
14
NOT
Separate here
for Installation
into Hood
9
19
CORE WATER
11
12
3 3/4"
22
See Note #8
See Note #7
21
20
Connection to
Appliance Drops
19 7/16"
41
6
7
6
Figure 31 - 3/4" Self-Cleaning with CORE Wall Mounted Utility Cabinet Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 5". This is noted below with
an *.
Valves can be rotated for best fit inside cabinet
Thin wall copper tubing to be run to the coupling near the pump to #21. 1" of plastic tubing is
used between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G005-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G005-24VDC may be used as an alternative.
CORE WATER
HOT WATER
16
16
6*
16
3*
2*
15
15
11
See Note #5
4
4
8, 10
8, 10
18
18
13
8
3 5/16"
13
17
12
19
22
24
See Note #8
21 7/16"
21
7
14
See Note #9
20
9
23
10
9
3 5/16"
Figure 32 - 1" Self-Cleaning with CORE Wall Mounted Utility Cabinet Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 3". This is noted below
with an *.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
Thin wall copper tubing to be run to the coupling near the pump to #23. 1" of plastic tubing is
used between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G007-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G007-24VDC may be used as an alternative.
17
4*
CORE WATER
HOT WATER
17
17
2*
2*
15
15
11
See Note #5
20
20
9, 16
9, 16
13
16
13
12
19
5
See Note #8
3 1/8"
3 1/8"
21
22
23
26
14
22
24
25
6
7
See Note #9
42
Figure 33 - 1-1/2" Self-Cleaning with CORE Wall Mounted Utility Cabinet Manifold Detail
Notes:
1.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
2.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
3.
4.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
5.
Thin wall copper tubing to be run to the coupling near the pump to #16. 1" of plastic tubing is
used between coupler and pump.
6.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
7.
Optional Slow-Close Solenoid Part # SC8221G011-120VAC may be used an an alternative.
8.
Optional Slow-Close Solenoid Part # SC8221G011-24VDC may be used an an alternative.
9.
Gauge to be piped per Detail A, so that the face is visible when mounted in the Hood Utility
Cabinet.
4
CORE WATER
HOT WATER
17
17
24
23
25
17
26
15
15
27
See Note #4
8
19
See Note #9
DETAIL A
SCALE 1 : 4
16
13
13
9
18
3 3/4"
12
A
5
14
21
22
See Note #7
25 3/4"
20
6
6
See Note #8
3 3/4"
43
Figure 34 - CORE Duct and Plenum Protection Manifold Detail
Notes:
1.
2.
3.
4.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 5". This is noted below
with an *.
Valves can be rotated for best fit inside cabinet
Thin wall copper tubing to be run to the coupling near the pump to #21. 1" of plastic tubing
is used between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G005-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G005-24VDC may be used as an alternative.
5.
6.
7.
8.
9.
9
5
12
3
9
16
16
1*
15
6*
16
11
2*
15
10
8
4
10 18
10
CORE WATER
HOT WATER
See Note #5
8
19
18
13
12
17
24
22
13
3 5/16"
20
3 5/16"
21
21"
23
See Note #8
14
9
10
8
See Note #9
9
7
22 3/4"
9 7/16"
Figure 35 - 1" CORE Duct and Plenum Protection Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
For 30" tall hoods, plumbing must be lengthened in three places by 3". This is noted below with an *.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
Thin wall copper tubing to be run to the coupling near the pump to #23. 1" of plastic tubing is used
between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G007-120VAC may be used as an alternative.
Optional Slow-Close Solenoid Part # SC8221G007-24VDC may be used as an alternative.
10
12
6
6
8
17
4*
18
17
11
2*
3
20
9
21
16
12
13
5
3 1/8"
3 1/8"
19
26
24
6
6
See Note #9
23
16
See Note #8
14
22
9"
25
44
24 7/8"
21 5/8"
CORE WATER
HOT WATER
15
See Note #5
Figure 36 - 1-1/2" CORE Duct and Plenum Protection Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
Valves and Gauges can be rotated for best fit inside cabinet, gauge faces must be visible
Thin wall copper tubing to be run to the coupling near the pump to #16. 1" of plastic tubing is used
between coupler and pump.
Do not use Pipe Dope on union mating surfaces as this can cause leaks.
Optional Slow-Close Solenoid Part # SC8221G011-120VAC may be used an an alternative.
Optional Slow-Close Solenoid Part # SC8221G011-24VDC may be used an an alternative.
Gauge to be piped per Detail A, so that the face is visible when mounted in the Hood Utility
Cabinet.
24
6
2
23
25
12
6
10
26
17
3
27
15
4
11
See Note #9
17
DETAIL A
SCALE 1 : 4
15
9
See Note #4
19
CORE WATER
HOT WATER
8
16
12
13
3 3/4"
A
5
3 3/4"
18
13
13 7/8"
See Note #8
14
See Note #7
11 7/8"
22
20
21
10 5/8"
6
7
45
Figure 37 - Wall Mounted Self-Cleaning and CORE Manifold
Notes:
Test/Arm Switch Components
Main Body ZB5AD2 (A0001800)
N.O. Terminals ZB5AZ103 (A0001808)
Normally Closed
Solenoid Valves
Flow Direction
Prime Push Button
(D7-F2X11).
Temperature
and Pressure
gauge
Alarm Sounder
(SCE028LD3CTB)
Water Hammer
Arrestors
Manifold
Pressure
Regulators
CORE Package Enclosure.
Contains CORE Control
Board, Battery Backup, and
Connection Terminals
CORE Water Inlet
Surfactant Pump.
(50000-805)
Surfactant Tank
(WWSCTANK2.0CORE)
Screwed to Cabinet
(2 Places)
Manual Control
Valve. Hot Water
Manifold Only.
HOT Water Inlet
Figure 38 - Wall Mounted Self-Cleaning and CORE Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
Valves can be rotated for best fit inside cabinet
Package ships with the surfactant pump injection point and tubing loose. These two components
must be shipped with the package and will be provided by the Surfactant pump manufacturer.
CORE appliance solenoid DIN connecton cable must be shipped with hoods.
Package also includes one vacuum breaker, to be installed in the field. This will also ship loose with
the package.
Optional Slow-Close Solenoids Part # SC8821G005-120VAC (3/4"); SC8221G007-120VAC (1");
SC8221G011-120VAC (1-1/2") may be used as an alternative.
Optional Slow-Close Solenoids Part # SC8821G005-24DC (3/4"); SC8221G007-24DC (1"); SC8221G01124DC (1-1/2") may be used as an alternative.
20
10
11
See
note
#8
8
9
See note #9
13
12
14,19
17
15
16
13
3/4" Manifold - 21 1/8" ±1/2"
1" Manifold - 22.0971 ±1/2"
1 1/2" Manifold - 26 3/4" ±1/2"
5.
6.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
Package ships with the surfactant pump injection point and tubing loose. These two components must be
shipped with the package and will be provided by the Surfactant pump manufacturer.
Package also includes one vacuum breaker, to be installed in the field. This will also ship loose with the package.
CORE appliance solenoid DIN connecton cable must be shipped with hoods.
Flow Direction
1.
2.
3.
4.
5
1
Ø3 3/4"
Opening Centered
on Manifold (4 Places)
Install F2100001 in Openings
2
3
18
6/7
4
HOT Water Inlet
CORE Water Inlet
Note: Pipe Dope Must Be Used To Seal Threads. DO NOT USE TEFLON TAPE.
46
Figure 39 - Wall Mounted Self-Cleaning and Supervised CORE Manifold
Notes:
1.
2.
3.
4.
5.
6.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
Package ships with the surfactant pump injection point and tubing loose. These two components must be
shipped with the package and will be provided by the Surfactant pump manufacturer.
Package also includes one vacuum breaker, to be installed in the field. This will also ship loose with the package.
CORE appliance solenoid DIN connecton cable must be shipped with hoods.
Test/Arm Switch Components
Main Body ZB5AD2 (A0001800)
N.O. Terminals ZB5AZ103 (A0001808)
Normally Closed
Solenoid Valves
Flow Direction
Prime Push Button
(D7-F2X11).
Temperature
and Pressure
gauge
Alarm Sounder
(SCE028LD3CTB)
Water Hammer
Arrestors
CORE Package Enclosure.
Contains CORE Control
Board, Battery Backup, and
Connection Terminals
Manifold
Pressure
Regulators
Surfactant Pump.
(50000-805)
Manual Control
Valve Supervision
Surfactant Tank
(WWSCTANK2.0CORE)
Screwed to Cabinet
(2 Places)
Manual Control
Valve
CORE Water Inlet
HOT Water Inlet
Figure 40 - Wall Mounted Self-Cleaning and Supervised CORE Manifold Detail
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
Flow Direction
9.
All fittings and pipe will be Brass. Drain components are Chrome-plated 17 ga. Brass.
Length and width of manifold must match measurements listed on this page.
All pipe nipples are close unless otherwise noted.
Valves can be rotated for best fit inside cabinet
Package ships with the surfactant pump injection point and tubing loose. These two components
must be shipped with the package and will be provided by the Surfactant pump manufacturer.
CORE appliance solenoid DIN connecton cable must be shipped with hoods.
Package also includes one vacuum breaker, to be installed in the field. This will also ship loose
with the package.
Optional Slow-Close Solenoids Part # SC8821G005-120VAC (3/4"); SC8221G007-120VAC (1");
SC8221G011-120VAC (1-1/2") may be used as an alternative.
Optional Slow-Close Solenoids Part # SC8821G005-24DC (3/4"); SC8221G007-24DC (1");
SC8221G011-24DC (1-1/2") may be used as an alternative.
20
10
11
See
note
#8
9
See note #9
8
13
3/4" Manifold - 21 1/8" ± 1/2"
1" Manifold - 22 1/8" ± 1/2"
1 1/2" Manifold - 26 3/4" ± 1/2"
14
12
14,19
17
15
16
13
5
1
Ø3 3/4"
Opening Centered
on Manifold (4 Places)
Install F2100001 in Openings
2
3
18
13
21
6/7
4
18
HOT Water Inlet
CORE Water Inlet
Note: Pipe Dope Must Be Used To Seal Threads. DO NOT USE TEFLON TAPE.
Note: If A Backflow Preventer Is Provided, A Vacuum Breaker Is Not Needed.
47
CORE Protection Fire System Printed circuit board
The CORE Fire System printed circuit board is a microprocessor based control that
provides all the necessary monitoring, timing and supervision functions required for the
reliable operation of the CORE Protection Fire System.
Under normal conditions the “Fire System Activated” light is flashing one brief flash every
3 seconds, indicating the CORE system is armed and ready. If a fault is detected
anywhere in the CORE system the audible alarm will periodically sound and the “Fire
System Activated” light will flash a fault code to indicate the fault that was detected. This
fault code consists of a series of flashes followed by a pause. Simply count the number
of flashes between the pauses and refer to the chart below to find the cause of the fault.
Any fault is extremely important and must be dealt with and rectified immediately to insure
continued CORE protection.
The connections for building fire panels are located at AL1 and AL2 as dry contacts.
For remote mounted Ansul Automans, use terminals AU1 and AU2. This will provide a
dry contact connection point to provide power for activating the Ansul Automan.
Catastrophic faults for CORE Total Flood Protection
Number of flashes
Fault condition
Corrective Action
2
Main CORE water solenoid
3
CORE Appliance solenoid
4
Auxiliary Fault
5
Microcontroller fault
Number of flashes
Critical faults
Fault condition
6
CORE surfactant pump
7
Supervised Loop
Number of flashes
Check solenoid and wiring to solenoid, replace
as needed
Check solenoid and wiring to solenoid, replace
as needed
Check supervised Pressure Regulating Valves
(optional) and Pressure Switches (optional).
Replace CORE printed circuit board
Important faults
Fault condition
8
Ground Fault
9
10
Surfactant Low
Battery voltage low
11
12
13
14
AC power failure
Door tamper switch
CORE Total Flood Test
mode
CORE Interlock
15
16
Fault on hood in network
Fault on PCU in network
48
Corrective Action
Check surfactant pump motor and wiring to the
motor, replace as needed
Check the wiring to all the manual actuation
devices and fire sensors for loose connections,
replace as needed
Corrective Action
Check the wiring to all the manual actuation
devices and fire sensors for shorts to ground,
replace as needed
Add surfactant, check/replace float switch
Replace batteries, wait for batteries to recharge
if there was a power failure
Check breakers, call power company
Close cabinet door
Place switch in armed position when testing is
complete.
Check DIP Switches on all Boards and RS-485
Network Wires connecting boards
Check all hoods in CORE network for faults
Check all PCUs in CORE network for faults
DIP Switch Settings
The switch diagram shows switch 2, 3, 4, 6, and 7 in there Open (Off) positions. Switch 1, 5, 8 are shown
in there Closed (On) positions. When set from the factory, these should be considered there default
positions and should not to be changed.
The information below describes each switch and its function.
DIP
Description
SWITCH #
DIP Switch position
1 through 4
5
1
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
Closed
Open
2
Open
Closed
Closed
Open
Open
Closed
Closed
Open
Open
Closed
Closed
Open
Open
Closed
Closed
Open
3
Open
Open
Open
Closed
Closed
Closed
Closed
Open
Open
Open
Open
Closed
Closed
Closed
Closed
Open
4
Open
Open
Open
Open
Open
Open
Open
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Open
Interlock Network Address of this unit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
THIS UNIT IS NOT PART OF AN
INTERLOCK NETWORK
8
7
6
5
O
P
E
N
4
3
2
1
Set this switch to Closed (On) if this unit has the highest address on
the interlock network, otherwise this switch must be Open (Closed).
Fire Group
DIP Switch position
6 and 7
8








6
Open
Closed
Open
Closed
7
Open
Open
Closed
Closed
Fire group number
1
2
3
4
Setting switch 8 to its Closed (On) position connects a 120 Ohm
terminating resistor to the interlock network. This switch must be
Closed if this unit is at either physical end of the interlock network
cable, otherwise it must be Open (Off).
Each unit has a unique address based on the DIP switch 1-4 settings, 15 units max on a network.
If address is 0 (all switches off) the unit will not accept or send any network traffic.
The unit that has switch 5 on will be the “master” and be in charge of polling all the units below it
and waiting for a reply. The lack of 3 replies in a row will cause an “interlock network supervision
fault”. All units will be polled in a burst every 3 seconds.
For all non-master units, the lack of being polled for 10 seconds will cause an “interlock network
supervision fault”
Any unit detecting a fire condition will broadcast the notification once every second for as long as
the condition persists
When the Fire condition is cleared, 10 notifications will be sent, one every second,
Any unit detecting a supervisory fault will broadcast the notification every 2 seconds until the
condition is cleared.
When the supervisory fault condition is cleared, 10 notifications will be sent, one every 2 seconds
49
Typical CORE DIP Switch Arrangement
Only One CORE Panel on the network:
CORE Board #
DIP 1
DIP 2
DIP 3
1st (Master)
Closed
Open
Open
Hood
Two CORE Panels on the network:
CORE Board #
DIP 1
DIP 2
1st (Master)
Open
Closed
Hood 1
2nd (Slave)
Closed Open
Hood 2
Two CORE Panels on the network:
CORE Board #
DIP 1
DIP 2
1st (Master)
Open
Closed
Hood
2nd (Slave)
Closed Open
PCU
Three CORE Panels on the network
CORE Board #
DIP 1
DIP 2
1st (Master)
Closed
Closed
Hood 1
2nd (Slave)
Open
Closed
Hood 2
3rd (Slave)
Closed
Open
PCU
Four CORE Panels on the network
CORE Board #
DIP 1
DIP 2
1st (Master)
Open
Open
Hood 1
2nd (Slave)
Closed
Closed
Hood 2
3rd (Slave)
Open
Closed
PCU 1
4th (Slave)
Closed
Open
PCU 2
DIP 4
Open
DIP 5
Closed
DIP 6
Open
DIP 7
Open
DIP 3
Open
DIP 4
Open
DIP 5
Closed
DIP 6
Open
DIP 7
Open
DIP 8
Closed
Open
Open
Open
Open
Closed
DIP 3
Open
DIP 4
Open
DIP 6
Open
DIP 7
Open
DIP 8
Closed
Open
Open
Open
Open
Closed
Open
DIP 5
Closed
Open
DIP 8
Closed
DIP 3
Open
DIP 4
Open
DIP 5
Closed
DIP 6
Open
DIP 7
Open
DIP 8
Closed
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Closed
DIP 3
Closed
DIP 4
Open
DIP 5
Closed
DIP 6
Open
DIP 7
Open
DIP 8
Closed
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Closed
*For additional configurations please reference CORE Board DIP Switch Table on page 49.
**The configurations above are shown with all CORE boards in the same Fire Group, and may be configured
differently even if the CORE panels are on the same network. Every panel with matching fire group settings
(DIP switches 6 and 7) will activate simultaneously in a fire condition.
50
Appliance Shutdown in Fault Conditions
The Core Fire Protection System is equipped to shut down the appliances if a fault condition is present.
The information below shows which fault condition affects the appliances’ fuel and power sources, alarm
muting, and local trouble relay.
Number
Of
Flashes
Gas Valve Shut Down
Fault Condition
Local
System
Shut Down Shunt Trip
Breaker and UDS Kill
Switch
Networked
System
Local
System
Networked
System
Mute Local
Alarm with 4
Hour Reset
Local
Trouble
relay
Catastrophic Faults
2
CORE water solenoid
X
X
X
X
X
3
CORE Appliance solenoid
X
X
X
X
X
4
Auxiliary Fault
X
X
X
X
X
5
Microcontroller fault
X
X
X
X
Critical Faults
6
CORE surfactant pump
7
Supervised Loop Fault
8
Ground Fault
X
9
Surfactant Low
X
10
Battery voltage low
X
11
AC power failure
12
Door tamper switch
13
Test mode
14
CORE Interlock
X
15
Fault on hood in network
X
16
Fault on PCU in network
X
X
X
X
X
X
X
X
Important Faults
X
X
X**
X**
X
X
X
X
X
X
X
Local Alarm Muting
Depressing the fire system reset button can mute the local alarm. This will disable the sounder for 4 hours
under specific conditions. The table above shows which errors can be muted. It should be noted that the
fault will not clear until the fault condition is corrected.
CORE Appliance Test Mode
The CORE Appliance Test Mode allows the hood to be tested with operational appliances without
discharging the system on the appliances. Once the appliances are started, test mode can be entered
without the appliances shutting down for 15 minutes. However once the fire system is activated, the shunt
trip (electric appliances) and the gas valve will be locked out until test mode is deactivated.
**During AC power failure, all gas appliances will be shut down. Electrical appliances will shut down on
building power loss.
51
CORE Protection Supervised Loops
The supervised loops are integral to proper operation and activation of the CORE protection system. All
CORE protection systems have two supervised loops; each loop consists of two conductors, one positive
and one negative. One loop is dedicated to all sensors; while the other is dedicated to all manual actuation
devices (push/pull stations). The supervised loop connections are located at the front edge of the hoods
for accessibility. Connections beyond the hood, like the connections at the manual actuation device, must
be made with a plenum rated wire. It is recommended to use a two conductor Belden 6320UL, 18 AWG,
wire or similar for these connections.
Figure 41 – Supervised Loop Connection
For connections on or above the hood, use Type MG or MGT wiring with High Temperature Terminal
junction blocks. A Supervised Loop Connection kit is available to connect back to back or end to end
hoods. This kit will come with the necessary hardware and wire.
Supervised Loop Connection Kit Part Number
SLPCON-03
SLPCON-05
SLPCON-10
SLPCON-15
SLPCON-20
Length
3 Feet
5 Feet
10 Feet
15 Feet
20 Feet
Location Used
End to End Hoods
End to End Hoods
End to End and Back to Back Hoods
End to End and Back to Back Hoods
End to End and Back to Back Hoods
High Temperature Supervised Loop Components
Type MG Wire, White, 16 AWG
Type MG Wire, Black, 16 AWG
Two Conductor High Temp Terminal Block
52
Part Number
441601C6.FE0
441601C6.FE9
20M4174
CORE Protection Firestat
The Firestat is a device installed in the riser of the hood, at the duct connection, that measures temperature.
The standard temperature setting is 360°F. Depending on heat produced by appliance, a higher rated
temperature Firestat will be required. If a temperature higher than the set point is sensed, the Firestat
contacts will close and energize the electrical control board. The fire system will activate, the system will
run for a minimum of 15 minutes and then recheck the temperature. If the temperature is still higher than
the set point, the process restarts immediately.
The Firestat has 2 black wires and 2 white wires, these wires must be connected into the supervised loop.
Use high temperature wiring when installing Firestat components. High temperature wire-nuts or terminal
blocks must be used. There must be one sensor installed for every 12 feet of hood length.
Multiple sensors are wired in parallel in the supervised loop. The Firestat may be installed on the opposite
side of the quick seal for access in the duct.
Non-Solid Fuel Appliances
Non-solid fuel appliances with duct runs longer than 50 feet create hazards due to potential grease
accumulation. Duct runs longer than 50 feet require a second Firestat installed at the duct discharge. Duct
runs longer than 100 feet will require additional Firestats, contact Factory Service Department for more
information.
Solid Fuel Appliances
Solid fuel appliances produce effluents that can accumulate inside the duct, especially in long horizontal
duct runs. Sparks from solid fuel appliances can travel into the ductwork and create fires that occur beyond
the point where the hood riser Firestat can detect them. Additional downstream Firestats ensure that these
duct fires are detected and the fire system actuates. Solid fuel applications require 500°F rated Firestats,
and SOLO filters.
In addition to the 500°F rated Firestat, located in the hood riser, a second Firestat is required at the duct
discharge for solid fuel applications when the ductwork exceeds 10 feet in length or contains horizontal
runs. Even if the entire duct run is inaccessible, this additional Firestat is still needed. Mounting a Firestat
in the fan may be an option. On duct runs longer than 50 feet, a third Firestat will be required somewhere
in the duct run, ideally at the end of a horizontal run, if present. Duct runs longer than 100 feet will require
additional Firestats, contact Factory Service Department for more information.
Note: When additional Firestats are required, install in an accessible location near an access door,
hood riser or fan. The door will provide access to install, clean, and replace the Firestat when
needed. If a PCU is equipped with electronic detection, PCU Firestats can serve as downstream
detectors, if present. The temperature rating of the Firestat in the duct must always match the
temperature rating of the Firestat in the riser.
Figure 42 - Firestat
Grease Duct (External Surface)
1/2" NPT Quik Seal (Adapter Body)
Part #32-00002
1 1/8" - 1 1/4" Diameter Hole
1/2" NPT Quik Seal (Adapter Body)
Part #32-00002
Fenwal Firestat
12-F28021-005360
(Normally Open, Close on Rise
@360°F)
or
Fenwal Firestat
12-G28021-005500
(Normally Open, Close on Rise
@500°F)
Extension Ring
Part #59361-1/2
2 Black Wires
2 White Wires
Note: Extension Ring To
Be Tack Welded to Duct
Or Riser
1/2" NPT Quik Seal (Adapter Body)
Part #32-00002
Extension Ring Cover
Part #100-BW
1/2" NPT Quik Seal (Adapter Body)
Part #32-00002
53
CORE Protection Manual Actuation Device
The push/pull station is a remote manual actuation device to activate the fire system.
This remote manual actuation device (push/pull station) contains one set of normally
open contacts, and mounts to any standard junction box. When the front button is
pressed, the electrical connection to the fire system is completed, thus activating the fire
system.
Figure 43 – Actuation
Device
The remote manual actuation device (push/pull station) should be mounted at a point of
egress and positioned at a height determined by the authority having jurisdiction (AHJ).
This position is usually 10 to 20 feet from hood and 42 to 48 inches above the floor.
Multiple remote manual actuation devices (push/pull stations) are acceptable to use in the
CORE system and are wired in parallel per the electrical schematic. The remote manual
actuation device (push/pull station) is reset by twisting the push button clockwise until the
internal latch is released.
The clear protective cover must be installed to protect the device from accidental
activations. This cover is provided as part of the manual actuation device. Below are the
part numbers for the devices and replacement parts.
Part Description
Push Button with Clear Cover
Push Button with Clear Cover and
Horn
Replacement Clear Cover
Blue Junction Box with Deep Back
Part Number
Part Description
Part Number
STI-SS2431
Blue Extension for Surface
Mounted Push Stations
SF-1331
STI-SS2441
Normally Open Contact
STI-10196
STI-COVER
STI-KIT71101AB
Normally Closed Contact
Contact Housing Assembly
STI-10198
SF-10197H
Figure 44 – Tank Detail
Surfactant Tank
The surfactant tank used on the CORE protection system
has a capacity of 2 gallons. The tank contains a low
surfactant switch to retain 1 gallon for CORE protection, by
disabling injection during the self-cleaning cycle. In the event
of a fire, surfactant is continuously injected into the water
spray to help suppress the fire. One gallon of surfactant will
last for approximately 15 minutes of fire protection. In the
event that the low level sensor is activated, an “Add
Surfactant” light will illuminate on the control panel. To reset
light, simply fill the surfactant tank with surfactant.
Figure 45 – Side and Internal Details
NOTE: SC-5 surfactant from 20/10 Products Incorporated must be used.
54
CORE Protection Waterline Supervision
Figure 46 – Flood Manifold
The CORE Total Flood manifold is listed for use with water pressures
up to and including 70 psi (operating pressure) and 125 psi (static
pressure). When the inlet connection to the manifold exceeds the
max listed pressures, a pressure reducing valve water pressure
regulator must be installed. The pressure reducing valve is capable
of reducing the wet pipe sprinkler line supply pressure and flow rate
down to the CORE control package requirements. Since the valve
is capable of shutting down the water flow, it must be monitored to
ensure the valve is open. The pressure reducing valve is an Elkhart
Brass UR series and is supervised by a Potter PCVS2 Switch. The
valve is available in 1-1/2” NPT (UR-20-Series) and in 2-1/2" NPT
(URFA-Series). The pressure reducing valves are rated for use up to
and including 400 psi.
The Pressure Supervision Switch, part number PL is used to verify
incoming water pressure. This switch is preset at 40 psi, but is
adjustable, up to 60 psi, to account for different length hood systems.
This switch should not be used if the minimum required pressure is
greater than 60 psi.
The CORE panel contains two isolated inputs for auxiliary supervision of pressure reducing valves and
pressure switches. Each Supervision device above has two single pole, double throw switches. These
switches may be wired in parallel to the CORE panel terminals H1D and 39. When a fault is detected, the
CORE board will shut down the gas valve and shunt trip, trigger a local trouble signal, and alert all attached
CORE packages. Alternatively, the switches from each device could be connected to the trouble input of
the building fire alarm panel to indicate a trouble condition. Both methods are shown below.
Figure 47 – Electrical Connections
55
Battery Backup
The CORE system contains a battery backup. During a power loss the “Fire System Activated” light will
flash 11 times between pauses indicating the power loss.
The batteries must be replaced every 2 years, from the date of fire system commissioning. Part number
BP7-12-T2, two required. Although the batteries are hot swappable, which means they can be replaced
while there is input power to the control, for your safety all sources of power must be removed from the
control before replacing the batteries. To replace the batteries, unplug the battery cable from the J1
connector on the CORE printed circuit board. Then remove the retaining strap holding the batteries in place.
Remove the batteries from the cabinet. Transfer the fuse and cable set from the old batteries to the new
batteries being extremely careful to observe the RED and BLACK lead and terminal colors. Reinstall the
batteries in the cabinet and reconnect the battery plug to J1. The batteries are lead acid type and are
recyclable; please dispose of the old batteries properly.
During extended periods of inactivity where the CORE system will be without AC power for more than 2
days, such as a shutdown or natural disaster, it is best to decommission the CORE system by disconnecting
the batteries. This will prevent any damage to the batteries through complete discharge. When the system
becomes active again, commission the system by reconnecting the batteries and allowing them to charge
for 48 Hrs.
Figure 48 – Battery Backup
Power Supply Adjustment
To properly charge the batteries, the power supply must be adjusted to output 27.5V
DC. This can be checked with an accurate digital volt meter placed across Terminals
H1D and N1D. To adjust the output voltage, place a small flat bladed screwdriver into
the yellow dial. By turning this clockwise, you will increase the voltage.
Figure 49 –
Power Supply
IMPORTANT!!
CORE Protection battery backup system requires that the batteries be changed every 2 years,
from the date of fire system commissioning, maximum. Failure to do this will result in a void in
product reliability and may cause severe damage to facility due to loss of fire protection.
56
Heat Recovery Coil (Optional)
An optional heat recovery coil is available with CORE hoods. The coils are factory installed under each
hood duct (riser) connection. Warm exhaust air passes through the coils and heats the water running
through the coils. The water is used as pre-heated water supply to the hot water heaters for the facility.
The self-cleaning function of the hood continually cleans the surface of the coil to ensure proper heat
transfer. It is very important to ensure that the high efficiency hood filters remain in use in the hood.
Each hood equipped with a coil system has a ¾ inch NPT inlet and outlet connection. If multiple hoods
are on the same system, they should be piped in series, prior to the water heater, to maximize energy
recovery. If the coil pressure drop is excessive for an “in series” configuration, the coils may be piped in
parallel to reduce water pressure drop. It is important to keep the piping runs similar when piping in parallel
to keep flow rates through all coils similar. Field pipe size must be sized to provide adequate hot water for
the building appliance usage, including the self-cleaning operation of the hood. If the hood covers multiple
appliances, the coil performance will be best if the water enters the end of the hood that covers the lower
temp appliance first. The max static water pressure in the system should be 150 psi.
It is recommended that an expansion chamber, check valves, ball valves, and pressure relief valves be field
installed in the system as shown in the diagram below. As the water heats up in the system, the water
volume can increase therefore causing the pressure to increase.
Figure 50 – Typical Installation
57
Each coil is factory installed and is equipped with manual shut off valves on both the inlet and outlet for
service. With these valves in the off position, no water will flow through the coils. The coils are also
constructed with brass union connections so the coil can be removed for further cleaning or service. When
removing a coil, break the unions loose and allow the water to drain into the hood trough to empty the coil.
It is recommended that a second water supply be piped directly to the hot water heater, as shown in the
diagram above so that the facility will have hot water during coil service. Check valves and ball valves
should be field installed as illustrated to allow for proper service.
Inlet and outlet pressure/temperature gauges are installed to monitor the performance of the coil. With
water flowing and the hoods operating over hot appliances, there should be a 5-30 degree F temperature
rise noticed from the coil inlet to the outlet. Air pressure drop through the coil is negligible but can be
estimated with the formula below. Water pressure drop is more significant and can be estimated with the
formula below or from the lookup table below:
Coil Air Pressure Drop (in. w.c.) = 1.25E-8 x CFM2
Coil Water Pressure Drop (psi) = 0.054 x GPM2
Coil Water Pressure Drop (FT. H2O) = 0.125 x GPM2
Water temperature can also be remotely monitored. Thermistors are installed on both the entering and
leaving side of each coil for temperature monitoring. Thermistors are rated at 10Kohm and have a 2 wire
connection. These get connected to the packaged prewire controller or building monitoring system.
Reference the CASLink manual for more information regarding sensor wiring.
Figure 51 – Thermistor Sensor
Table 9 - Water Pressure Drop through a
Single Coil
(Add multiple coils together)
Water Flow
Rate (GPM)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
7.5
10.0
15.0
20.0
Coil Water
Pressure
Drop
(FT. H2O)
0.03
0.13
0.28
0.50
0.78
1.13
1.53
2.00
2.53
3.13
7.03
12.5
28.13
50.00
Coil Water
Pressure
Drop (PSI)
0.01
0.05
0.12
0.22
0.34
0.49
0.66
0.87
1.10
1.35
3.04
5.41
12.18
21.65
58
Troubleshooting
The following table lists causes and corrective actions for possible problems with self-cleaning hoods.
Review this list prior to consulting manufacturer.
Self-Cleaning Hood Troubleshooting Chart
Problem
Plenum not being cleaned
Potential Cause
No Water Pressure
Clogged nozzles
Timer Settings improperly set
No water pressure
Nozzle spray pattern incorrect
Leaking Manifold Pipes
Water Leaking from Vacuum
Breaker
No Surfactant
Pipes not tight or sealed
Riser nozzle installed too high
Add Surfactant Light On
Water leaks out of Filters
Low Surfactant Level
Filters have gaps between them
Water
Trough
Clogged Drain
Wrong Filters Installed
Overflows
Grease
Water Pressure Too High
Wash Timer Set Too Long
Nozzles are Loose
Filters are Clogged with Grease
59
Corrective Action
Verify Hot Water Pressure >30 psi
Open Manual Valve if closed
Clean or replace nozzles
Wash timer should be set for
approximately 3 minutes
Turn main building water valve on
Nozzles must be pointed toward
back of plenum
Add Surfactant
Reseal and tighten pipes
Verify that vacuum breaker is
installed higher than all downstream
piping components
Add Surfactant
Add Filter Drip Blanks or reorient
filters
Clean Drain or grease trap
Install
Proper
Filters
per
Manufacturer
Water Pressure should be 70 psi
max
Reduce Wash Time
Tighten Nozzles
Clean Filters
CORE Protection Fire System Troubleshooting Chart
NOTE: Every panel with matching fire group settings (DIP switches 6 and 7) will activate
simultaneously in a fire condition.
Problem
Exhaust Fan On and Supply
Fan will not Start
Potential Cause
Broken supply fan belt
Fire system not armed
Add Surfactant Light On
Fire System Activated Light
On
Audible Alarm is On
Low Surfactant Level
Fire System is Activated
A fault code is flashing on the
“Fire System Activated” light
A fault has been detected in the
CORE Protection Fire system
Fire System will not turn off
Duct Sensor is Hot
Fire System is Activated
Remote
Manual
Actuation
Device has been pushed
Fire system is running on timer
Gas Valve does not close
Debris on gas valve seal
60
Corrective Action
Replace fan belt
Fire system distributor must arm fire
system
Add Surfactant
Make Sure Fire is Out and Reset
Fire System
Make Sure Fire is Out and Reset
Fire System
Count the flashes and lookup the
fault cause in section “CORE
Protection Fire System Printed
circuit board” of this manual.
Heat has activated the duct sensor.
Remove heat source or let system
extinguish fire. Once Heat source
or problem is resolved, press reset
button on the face of the electrical
control package.
Reset Remote push station once
fire is out and press reset button on
the face of the electrical control
package.
Reset Remote push
station by twisting clockwise until
reset.
Make sure duct sensor is cool and
push station is reset, than press
reset button on the face of the
electrical control package.
Fully clean Gas Valve and strainer
MAINTENANCE
To guarantee trouble free operation of this system, the manufacturer suggests following these guidelines. Most
problems associated with unit failures are directly related to poor service and maintenance. Record any
maintenance or service performed on this equipment in the documentation section located at the end of this
manual.
General Maintenance
1. Hood filters must be maintained on a daily basis to ensure proper airflow and grease extraction.
2. All water connections must be verified for tightness and leak-free operation.
3. The “Add Surfactant” indicating light will illuminate when the surfactant tank is ½ empty. Surfactant must
be added immediately to guarantee proper cleaning of the hood duct and plenum and proper fire
protection.
ATTENTION!!
When servicing or cleaning ductwork, all Hood CORE, PCU CORE, and interlocked fire
systems must be placed in test mode to prevent accidental discharge.
Every 6 months
1. Clean all duct sensors in hood duct connections (if equipped), inspect the hood duct and plenum areas
for excess buildup of grease/creosote.
2. The main line strainers in the manifold must be cleaned.
3. Verify proper system activation via the supervised loops. This includes all firestats, pull stations, and any
other activation points in the supervised loop.
4. Check surfactant injection, and battery backup.
5. Check all nozzles for proper and evenly distributed water flow. If nozzles are clogged, clean or replace.
6. Check drain(s) on hood to verify there is no blockage. Improper drainage could cause hood leaks or
water to back up into trough and overflow onto appliances.
7. Inspect the surfactant pump for proper operation and ensure liquid level sensor in surfactant tank is
operational. Test by manually lowering the sensor to verify if the “Add Surfactant” light illuminates.
8. Verify that system has proper water pressure and temperature per the labels on the unit.
9. Check gas valve operation to ensure gas valve fully shuts during system activation. Also, clean strainer
up stream of gas valve.
10. Fill surfactant tank with surfactant.
Every 2 Years
1. Replace batteries for the CORE Protection Systems. The replacement battery part number is BP7-12T2; two are required. Once the battery is disconnected, the connected equipment is not protected from
power outages. The new battery must be installed immediately. Refer to the replacement battery
installation guide for more details.
2. Inspect condition of all wires and plumbing. Plumbing should be free of corrosion and wire insulation
must be in good condition.
Decommissioning
If it should become necessary to disconnect the CORE system from AC power for an extended period of
time (more than 2 days), the batteries should be disconnected to prevent them from being damaged due
to complete discharge.
After A Fire
1.
2.
3.
4.
Inspect and/or Replace all nozzles.
Inspect all piping connections for tightness.
Inspect all hood lights for proper seals and security.
Inspect all wiring and Hood insulation to ensure all are in good condition.
61
Start-Up and Maintenance Documentation
START-UP AND MEASUREMENTS SHOULD BE PERFORMED AFTER THE SYSTEM HAS BEEN
INSTALLED (Warranty will be void without completion of this form)
Job Information
Job Name
Address
City
State
Zip
Phone Number
Fax Number
Contact
Purchase Date
Service Company
Address
City
State
Zip
Phone Number
Fax Number
Contact
Start-Up Date
CORE System Verification
Hood Information – Plumbing, Self-Cleaning
Refer to the start-up procedure in this manual to complete this section.
Name Plate and Unit Information
Field Measured Information
Hood Model Number
Input Voltage
Serial Number
Check All Nozzles for Tightness
Volts
Open all Valves to Hood
Hertz
Fill Surfactant Tank
Phase
Set All Timers
Check Fan Operation
Operate Wash Cycle
Verify Surfactant Pump Operation
Verify Surfactant line connection
Verify Hot Water Connection
Verify Hot Water Pipe Size ¾” or Larger
Verify Hot Water Pipes are Insulated
Verify Operating Water Pressure (Table 1) 70 MAX
Verify Max Static Water Pressure (125 PSI)
Verify Water Temperature
Measured End-to-End Connection Pipe
Measured Back-to-Back Connection Pipe
All Plenum connections made (if multiple hoods)
All Appliance connections made (if multiple hoods)
Check For Leaks in Manifold
Check For Leaks through Filters
Verify that Water is Draining Properly
Verify all drains are piped to Floor Drain or Grease Trap
Hood Information - Electrical
Refer to the start-up procedure in this manual to complete this section.
Name Plate and Unit Information
Field Measured Information
Hood Model Number
CORE Control Panel Wired
All Fans are wired into the Control Panel and are
Serial Number
properly operating
Volts
Shunt Trip Breaker wired (if required)
Hertz
UDS Appliance Kill Switch (if equipped) wired
Phase
Gas Valve Wired (if 120V required)
Control Panel power wired (Wall Mounted Control
cabinet only)
CORE Appliance solenoid valve wired (Wall Mounted
Control cabinet only)
62
Fire System Water Inlet - Sprinkler
Refer to the start-up procedure in this manual to complete this section.
Name Plate and Unit Information
Field Measured Information
CORE water line connected to Building Wet Sprinkler
Hood Model Number
System or Dedicated Water supply
Serial Number
No unsupervised shut offs in CORE water line
Verify connection pipe size
Verify Operating PSI (Table 1) 70 MAX
Verify Static Pressure (125 PSI MAX)
Monitored Pressure Reducing Valve installed
Verify Field Pipe Material
Fire System Information (When Supplied)
Refer to the start-up procedure in this manual to complete this section.
Name Plate and Unit Information
Field Measured Information
Hood Model Number
Gas Valve Wired
Serial Number
Gas Valve is Functioning Properly
Main Water Line from Supervised Supply
Batteries plugged in and light flashes ready
Remote Pull Station wired in Supervised Loop
Test Remote Push Station System Activation
Verify Push Station Cover Installed
Test Firestat System Activation
Verify Firestats are wired in Supervised Loop
Verify all Firestat wiring is high temperature wire
Service supervised, assisted or wired all Supervised
Loop connections
Verify Operating Water Pressure (Table 1) 70 MAX
Verify Max Static Water Pressure (125 PSI)
Verify Constant Surfactant Injection
Verify Appliance System Activates
All Gas and Electric Appliances Shut Down
Fire System Activated Light Illuminates
Audible Alarm Sounds
Verify Reset Button Works Correctly
System Activates on Battery Backup
Verify Surfactant Tank is Full
Verify Appliance System Test Switch is in Armed Mode
All Nozzles are 30-55” from Cooking Surface
Nozzles within 18” from Front/Back of Hazard Zone
Interior Nozzle facing back opposite end of appliance
(required for Upright Broiler or Salamander)
Back shelf has overhand of 12” or less
Back shelf is 18” from cooking surface
Building Alarm tied in (where applicable)
Trouble Relay tied in (where applicable)
Service
Refer to the start-up procedure in this manual to complete this section.
Name Plate and Unit Information
Field Measured Information
Hood Model Number
Flush lines after all supply lines are connected
Serial Number
Verify all plenum nozzles have strainers REMOVED
Document CORE Board Version, not chip version
Reset Button works
Fire System activates on Battery backup
Fire System activate on 120V power
Audible Alarm Sounds
Constant surfactant injection during activation
System reverse interlocked
Tamper sticker installed on Manual Actuation Device
(Push Station)
Comm module connected to the internet
CAS-Link Setup
Battery Date Code (Date of SDV on batteries)
63
MAINTENANCE RECORD
Date
Service Performed
Factory Service Department
Phone: 1-866-784-6900
Fax: 1-919-554-9374
64
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