CaptiveAire EWC Manual de usuario
Part No. A0029342
August 2020 Rev. 6
UL EX27953
Model EWC (Electric Wet Chemical) Extinguishing System
Installation, Operation, and Maintenance Manual
EWC Extinguishing System Typical Hood End Cabinet Installation
RECEIVING AND INSPECTION
Check for any signs of damage upon receipt, and if found, report it immediately to the carrier.
Check that all items are accounted for and free of damage.
WARNING!!
The Electric Wet Chemical (EWC) extinguishing system unit is to be installed, inspected,
recharged and maintained in accordance with NFPA 17A, NFPA 96, and the National Fire Code of
Canada as applicable.
Installation and maintenance of the EWC extinguishing system must be performed in
accordance with this manual by a factory trained and authorized distributor. 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 equipment.
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.
2
3
Table of Contents
WARRANTY ......................................................................... 4
Certifications and Approvals .....................................................4
System Overview......................................................................4
COMPONENTS .................................................................... 5
Cylinder Assembly ....................................................................6
Cylinder and Actuator Bracket ..................................................7
Discharge Adapter ....................................................................7
Primary Actuator Kit (PAK) .......................................................8
Secondary Valve Actuator (SVA) and Hose .............................9
Supervisory Pressure Switch (Optional) ...................................9
Nozzles ...................................................................................10
Vent Plug ................................................................................10
Gas Shut-Off Valves ...............................................................11
Electric Remote Manual Release ...........................................11
Firestat (Heat) Detector ..........................................................11
INSTALLATION .................................................................. 12
Cylinders.................................................................................12
Vent Plug ................................................................................13
Primary and Secondary Actuator Installation..........................13
Primary Actuator Kit (PAK) .....................................................14
Secondary Valve Actuator ......................................................14
Supervisory Pressure Switch..................................................15
Duct and Plenum Protection ...................................................16
Plenum Protection ...............................................................16
Duct Protection ....................................................................17
Ventilation Exhaust and Dampers ..........................................20
Electrostatic Precipitators (ESP).............................................20
Appliance Protection...............................................................21
Overlapping Appliance Protection .......................................21
Group Protection.....................................................................23
Overlapping Protection ........................................................23
Overlapping Coverage - Group Protection ..........................23
Dedicated Appliance Protection ..........................................27
Upright Broiler/Salamander Protection ................................28
Broiler Protection ....................................................................29
Closed-Top Chain Broiler ....................................................29
Open-Top Chain Broiler.......................................................29
Charcoal Charbroiler (Natural/Mesquite).............................30
Range Top with Shelf ..........................................................31
Range with Obstruction .......................................................32
Range with Upright Obstruction...........................................33
Agent Distribution Piping ........................................................34
Single Cylinder Nozzle and Piping Parameters...................35
Dual Cylinder Nozzle and Piping Parameters .....................37
Nozzles................................................................................39
Gas Shut-Off Valves............................................................40
Fire Protection System Firestat ..............................................41
Non-Solid Fuel Appliances (Rated 450°F)...........................41
Non-Solid Fuel Appliances (Rated 600°F)...........................41
Fire Protection Manual Actuation Device................................43
Trouble Input Wiring ...............................................................43
Battery Backup .......................................................................44
Power Supply Adjustment.......................................................44
Fire Protection System Printed Circuit Board ......................45
ELECTRICAL...................................................................... 48
Wire Ampacity Rating .............................................................49
Distance Limitations................................................................49
Fire Alarm Contacts ................................................................49
Fire Group...............................................................................50
Fire Protection System Supervised Loops..............................51
OPERATION....................................................................... 52
Test Mode Overview...............................................................52
Reset Overview ......................................................................53
TROUBLESHOOTING ........................................................ 55
Appliance Shutdown in Fault Conditions ............................... 56
Local Alarm Muting ............................................................. 56
Test Mode........................................................................... 56
Supervised Loop Wiring Troubleshooting .............................. 57
DIP Switch Settings ............................................................ 58
Typical DIP Switch Arrangement ........................................ 59
INSPECTION AND TEST.................................................... 60
Start-up/Test Procedure......................................................... 60
Preparing System for Test .................................................. 60
Connecting Service Test Tank to the System..................... 60
Test Procedure ................................................................... 61
Disconnecting Service Tank/Re-arming System ................ 62
MAINTENANCE .................................................................. 63
Every Month (System Owner)................................................ 63
Every Six Months (Authorized Distributor) ............................. 64
Every Twelve-Years............................................................... 64
Agent Cylinders .................................................................. 64
Actuation Hoses.................................................................. 64
Conditional Maintenance ....................................................... 65
Replacing A Primary Actuation Kit...................................... 65
Replacing A Secondary Valve Actuator.............................. 65
POST-DISCHARGE MAINTENANCE................................. 66
General Information ............................................................... 66
Appliance Cleanup................................................................. 66
Cleaning Distribution System................................................. 66
Cleaning Nozzles ................................................................... 66
Flushing the Distribution Pipe Network .................................. 67
Flushing Procedure with Spare/Test EWC Cylinder .............. 67
Flushing Procedure with an External Water Supply............... 68
Cylinder Maintenance ............................................................ 68
Removing a Cylinder.............................................................. 69
Depressurizing a Cylinder................................................... 70
Rebuilding the Valve/Siphon Tube Assembly..................... 71
Charging Cylinders ................................................................ 72
Recharging an EWC Cylinder............................................. 73
Charging a Spare/Test Cylinder ......................................... 74
Installing a Cylinder ............................................................ 74
Rechecking the System ...................................................... 74
EWC SUPPRESSION SYSTEM PARTS ............................ 75
Start-Up and Maintenance Documentation............................ 76
Job Information ...................................................................... 76
4
WARRANTY
Model EWC extinguishing system is warranted to be free from defects in materials and workmanship,
under normal use and service, for a period of 60-months from date of shipment. Warranty does not cover
consumable products such as batteries, nitrogen, and nozzle caps. This warranty is null and void if:
1. The system is not installed by a factory trained installer per the MANUFACTURER’S installation
instructions shipped with the product.
2. The equipment is not installed in accordance with Federal, State, Local codes, and regulations.
3. The system is misused or neglected, or not maintained per the MANUFACTURER’S maintenance
instructions.
4. The system is not installed and operated within the limitations set forth in this manual.
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 60-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.
NOTE: To receive warranty coverage for this product, copy and print out the “Start-Up and
Maintenance Documentation” on page 76. Fill in all required information. Fax the page to
1-919-516-8710 or call 1-866-784-6900 for email information within thirty (30) days of purchase.
Certifications and Approvals
The Electric Wet Chemical fire suppression system is UL & ULC listed in accordance with UL300, UL1254,
ULCORD-C1254.6.
The microprocessor-based control board is ETL Listed to UL Standard 864 and CAN/ULC-S527-11.
The Electric Wet Chemical fire suppression system is acceptable for use in New York City, and is
approved per FDNY COA #5870.
System Overview
The EWC extinguishing system provides fire protection for commercial cooking appliances and ventilation.
The EWC extinguishing system is electrically released via a 24V DC solenoid valve. Extinguishing system
units with electrical detection, activation, and control require the use of a Listed Control Panel, which has
been found acceptable for releasing device service and which is compatible with the electrical actuators
used on the extinguishing system. In addition, all electrical detectors, notification devices, and pull stations
are required to be Listed and compatible with the Control Panel.
5
COMPONENTS
The following section lists the major components used in the Model EWC extinguishing system.
Figure 1 - Shipping/Test View
Figure 2 - Exploded View
1. Unit is shown in Shipping/Test
Position
2. Tank Straps
3. Tank Mounting Bracket
(Secured to cabinet with rivets)
4. Cylinder Tanks (Up to four
tanks may be installed
depending on cabinet size.)
1
2
3
4
2
1. Tank Mounting Brackets
2. Secondary Supervisory Pressure
Switch (Optional)
3. Secondary Cylinder (Optional)
4. Primary Cylinder
5. Supervisory Pressure Switch
(Optional)
6. Primary Actuator Kit
7. Secondary Actuator Hose (Optional)
8. Secondary Valve Actuator (Optional)
9. Primary Valve with Siphon Tube
10. Secondary Valve with Siphon Tube
(Optional)
Tank straps not shown.
1
3
7
2
8
4
5
10
6
9
6
Cylinder Assembly
The EWC cylinder assembly (p/n 87-300001-001) uses a mild steel cylinder, conforming to 4BW250 DOT
& 4BWM-17 TC specifications, and a nickel-plated brass valve with pressure indicator gauge. Each valve
includes a Schrader port for connection to the primary actuator hose (for primary cylinders) or the optional
supervisory pressure switch (for secondary cylinders).
Each cylinder assembly is factory-filled with CAS liquid fire suppressant and pressurized to 200 PSIG
(1379 kPA) at 70°F (21°C). Each cylinder supports up to 6 flow points.
Figure 3 - Cylinder Tank Details
The pressure of a cylinder will vary with the ambient temperature, as detailed in Table 1. The gauge
indicator (shown in Figure 3) should be in the acceptable ‘green’ range for a cylinder that is properly
pressurized and within the listed operating temperature range. For a cylinder at the lowest listed operating
temperature of 32°F (0°C), the pressure gauge should read approximately 185 psig (the lower end of the
green range). For a cylinder at the highest listed operating temperature of 132°F (54.4°C), the pressure
gauge should read approximately 224 psig (the upper end of the green range).
Table 1 - Cylinder Temperature Vs Pressure
1. Valve Actuation Interface
2. Schrader Valve
3. Pressure Gauge
4. Discharge Outlet
A. Tank to Actuator Distance =
23-1/4”
B. Tank Diameter = 10”
A
B
1
2
3
4
2
230
(1586 kPA)
220
(1517 kPA)
210
(1448 kPA)
200
(1378 kPA)
190
(1309 kPA)
180
(1240 kPA)
30
(-1)
40
(4)
50
(10)
60
(15.6)
70
(21)
80
(27)
90
(32)
100
(38)
110
(43.3)
120
(49)
130
(54.4)
Temperature °F (°C)
Pressure PSIG (kPa)
7
Cylinder and Actuator Bracket
Each cylinder assembly is secured to a factory-installed cylinder bracket in the cabinet (p/n EWC-
UCTANKBRACKET). The cylinder is secured to the cylinder bracket via three (3) stainless steel straps.
The cylinder bracket also includes a platform for securing a primary actuator kit or secondary valve
actuator during shipping and maintenance procedures.
Figure 4 - Cylinder and Actuator Bracket
Discharge Adapter
The discharge adapter (p/n WK-283952-000) is used to connect the EWC cylinder valve outlet to the agent
distribution pipe network. The 1/2-inch NPT internal thread of the discharge adapter outlet is connected to
the supply line via an elbow and adapter.
The discharge adapter uses an O-ring (p/n WK-108019-000) at the valve port to eliminate leaks during
discharge.
Figure 5 - Discharge Adapter
8
Primary Actuator Kit (PAK)
The Primary Actuator Kit (PAK) (p/n 87-300030-001) is installed on each primary cylinder assembly to
pneumatically open the cylinder valve and provide actuation pressure for up to three secondary valve
actuators.
The PAK consists of a pneumatic actuator, 24V DC solenoid valve, check valve, primary actuator hose,
and associated fittings.
Upon automatic or manual system actuation, the control panel sends a momentary 24V DC release signal,
opening the PAK solenoid. Pressure from the primary cylinder is passed through the solenoid and check
valve, into the primary actuator (actuating the primary cylinder), and into the interconnected secondary
valve actuators (actuating the secondary cylinders).
The primary actuator has a 1/8” NPT inlet port for connection to the primary system cylinder, and a 1/8”
NPT outlet port for connection to the secondary cylinder actuation line or actuation plug for single cylinder
system. The primary actuator includes a piston with a spring-loaded locking pin which locks the piston in
the discharge position, ensuring complete discharge of the cylinder contents.
Figure 6 - Primary Actuator Kit
1. Schrader Service Port
2. Primary Actuator Hose
(Stainless Steel)
3. Solenoid Valve
4. Optional Supervisory
Pressure Switch
Connection
5. Primary Actuator
6. Locking Pin
7. Piston
5
1
2
1
3
4
6
7
9
Secondary Valve Actuator (SVA) and Hose
A Secondary Valve Actuator (SVA) (p/n 87-120042-001) is installed on each secondary cylinder assembly
to pneumatically open the cylinder valve(s). The SVA has 1/8” NPT inlet and outlet ports for connection to
the system actuation line via the SVA hose. All secondary hoses require a 1” minimum bend radius. The
SVA includes a spring-loaded locking pin that locks the actuator piston in the discharge position, ensuring
complete discharge of the cylinder contents.
Figure 7 - Secondary Valve Actuator
Supervisory Pressure Switch (Optional)
The optional primary and secondary supervisory pressure switch (p/n 87-300040-001) are pre-set to alarm
at a cylinder pressure of ~10% below the lowest operating system pressure of 185 psig (pressure at the
lowest listed operation temperature of 32°F). The supervisory pressure switch uses a diaphragm sensor to
detect pressure changes. At the pre-determined set point, the unit actuates a SPDT snap-acting switch,
converting a pressure signal into an electrical signal. The supervisory pressure switch can be used on
primary and/or secondary cylinders. For primary cylinders, the pressure switch is mounted on the primary
actuator kit. For secondary cylinders, the pressure switch is mounted on the Schrader fitting installed on
the cylinder valve.
Figure 8 - Supervisory Pressure Switch (Optional)
1. Actuation Line Plug
2. Locking Pin
3. Piston
4. Secondary Valve Actuator Hose
• 7.5” hose option (p/n 87-120045-001)
• 24” hose option (p/n 87-120045-002)
• 60” hose option (p/n 87-120045-003)
32
1
4
1. Supervisory Pressure Switch
(Primary)
2. Wrench Flats
3. Secondary Supervisory
Pressure Switch
4. Schrader Valve Port
4
1
2
2
3
10
Nozzles
There are various types of nozzles utilized in the EWC extinguishing system. The TF1 nozzle (p/n 87-
300021-001) is a 2 flow nozzle and is used for all zone protection. The ADP nozzle (p/n 87-300020-001) is
a 1 flow nozzle and is used for plenum, duct, and dedicated appliance coverage (e.g., salamanders,
upright broilers, chain broilers, and range with shelf). The R nozzle (p/n 87-120019-001) is a 1 flow nozzle
and used on ranges with obstructions.
The nozzles include a cap with replaceable, integrated foil seal. The foil seal prevents contamination from
entering the pipe network and is designed to burst upon system discharge, allowing the agent to flow to the
protected hazard area.
Figure 9 - Nozzles
Vent Plug
A vent plug (p/n 60-9196984-000) is installed in each agent distribution pipe network to prevent pressure
build-up (caused by ambient temperature increases in the kitchen) from rupturing the foil seals on the
nozzles. The vent plug utilizes a ball check to allow for relief of minor pressure increases while sealing
closed under the higher pressure of a system discharge. The vent plug must be installed in a horizontal to
vertically upright position.
Figure 10 - Vent Plug
1
2
3
1. Nozzle
2. Cap
3. Foil
ADP TF1 R
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