ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
ECS Protector Nitrogen Generator
PGEN-30
Specifications
Dimensions (cabinet): 24”(W) X 12”(D) X 53”(H)
Width (incl. bypass): 33”
Weight:
152 lbs
Power Supply:
120v/1 phase/60Hz (dedicated circuit)
Power Consumption:
2 Amps
Gas Connections:
Air Inlet - ½” NPT Female
Nitrogen Outlet - ½” NPT Female
Drain Connection:
¼” NPT Female
UL 508A Listed Industrial Control Panel
For use under U.S. Patents
8,720,591, 9,144,700 and 9,186,533
Ordering Information
Stock Number:
Replacement Filters:
Gas Membrane:
PGEN-30
PGEN-FKS
(annual maintenance)
PGEN-MS
(20 year expected service life)
General Description
The ECS Protector Nitrogen Generator is designed for
use in maintaining supervisory gas and facilitating the
Dry Pipe Nitrogen Inerting (DPNI) process for
controlling oxygen corrosion in dry and pre-action fire
sprinkler systems. The ECS Protector is an on-site
nitrogen generation system that is designed to be
installed inline between the compressed air supply
and the sprinkler system riser in dry or preaction pipe
sprinkler systems. The nitrogen generator utilizes
membrane gas separation technology that exhausts
oxygen as a waste gas to produce 98%+ nitrogen on
demand with no nitrogen storage necessary for dry or
preaction systems.
The ECS Protector Nitrogen Generator cabinet has an
external bypass valve to allow for nitrogen generator
maintenance or “fast fill” needs, and is designed to
meet the NFPA 13 30-minute fill requirement for dry
pipe or preaction fire protection systems.
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
July 2017 - Rev 5
ECS Protector Nitrogen Generator PGEN-30
1
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
The ECS Protector Nitrogen Generator facilitates the
patented “fill and purge” breathing process in the fire
sprinkler system when paired with a venting device
installed on the sprinkler riser such as the ECS
Protector Manual Vent (PAV-D) or the ECS Protector
Dry SMART Vent (PSV-D) for dry and preaction systems.
The ECS Nitrogen Generator unit that includes the
following components:
The ECS Nitrogen Generator includes the following
monitoring outputs:
•
•
•
•
•
•
•
•
•
•
Steel enclosure cabinet with membrane type
nitrogen generator (no nitrogen gas storage) and
manual bypass
Power supply (120v/1 phase/60Hz)
Single point nitrogen/air discharge – ½” NPT
Hour Run Meter
Cycle Counter
System Power (Digital Output)
Bypass Mode Alarm (Digital Output)
Nitrogen Generation Mode (Digital Output)
Nitrogen Supply Line Pressure (Analog Output)
Leak Monitoring (Digital Output)
The ECS Nitrogen Generator includes the following
function Indications:
The ECS Nitrogen Generator is designed to be used in
conjunction with the following components as part of
the complete ECS Dry Pipe Nitrogen Inerting (DPNI)
system:
•
•
•
Bypass Alarm - Nitrogen generator is in the
“By-Pass” mode (Flashing Indicator)
Leak Monitoring - Nitrogen generator running
excessively (Audible Signal)
•
•
•
Air maintenance device with on board adjustable
regulator (recommend Victaulic Series 757, Tyco
Model AMD– 1 or Reliable Model A-2)
Riser-mounted ECS Protector Manual Vent
(PAV-D) or ECS Protector Dry SMART Vent (PSV-D)
ECS Protector SMART Gas Analyzer (SGA-1) – one
per nitrogen generator is recommended
ECS In-Line Corrosion Detector (ILD-X) –
monitoring at least one system is recommended
Operating Performance
Model Number
Min. Supply Air
(SCFM)
Total System Capacity
(Gallons)
Single System Capacity†
(Gallons)
PGEN-30
10
3,200
Variable
† Capacity based on NFPA-13 30-minute fill requirement of largest single system
Nitrogen Quality
N2 Purity at Discharge:
N2 Pressure at Discharge:
N2 Temperature at Discharge:
N2 Water Dew Point:
98% or greater (maximum of 2.0% oxygen)
min of 15 psig; max of feed air pressure minus 15 psig
same as feed air temperature
typically less than –70ºF
Note: When connecting an ECS Protector Nitrogen Generator to an existing dry pipe/preaction fire sprinkler system, the
existing fire sprinkler system(s) must be limited to a maximum leak rate of less than 3 psig within a 24 hour period, per
system.
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
2
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
Installation Instructions
Installation of the ECS Protector Nitrogen Generator requires five (5) steps:
1.
2.
3.
4.
5.
Mount the cabinet in the appropriate installation location
Bring the dedicated power supply to the cabinet
Plumb the nitrogen/air supply line to the water based fire sprinkler risers being served
Plumb the condensate drain line to floor drain or building exterior
Connect Nitrogen generator output signals to BMS or fire alarm system, where applicable
Step 1:
Mounting the nitrogen generator cabinet
The ECS Protector Nitrogen Generator is designed to be mounted directly to the floor and/or the wall at
the installation location. Several factors should be considered in choosing the proper mounting location
for the nitrogen generator:
• Access to required power supply (dedicated circuit)
• Access to sprinkler risers being supplied from nitrogen generator
• Access to drain for the condensate discharge line
The cabinet includes pre-punched holes in the feet for floor mounting and holes in the back panel for
wall mounting using standard anchors.
Note:
The cabinet includes pre-punched holes in the feet for floor mounting and holes in the back panel for
wall mounting using standard anchors.
STEP 2:
Power Supply
The ECS Protector Nitrogen Generator requires a dedicated power supply to prevent interruption from
other equipment. The incoming power supply line ties into the top of the terminal blocks inside the
nitrogen generator cabinet (see diagram). The landing points are labeled L1, N, and G.
Required nitrogen generator power supply: 120v/1 phase/60Hz with dedicated 20 amp
120v/1 phase Connections
L1
Step 3:
N
G
Plumb the Nitrogen/Air Supply Line
The nitrogen/air discharge plumbing from the ECS Protector Nitrogen Generator is to be connected
directly to the sprinkler system valve trim using ½” to 1” black steel, galvanized steel, or copper lines.
The size of the nitrogen/air supply line shall be based on both the length of pipe between the nitrogen
generator and fire sprinkler systems and the total volume of fire sprinkler systems being supplied. The
nitrogen generator requires an in-line Air Maintenance Device (AMD) that is equipped with an on board
field adjustable pressure regulator for each zone being served. The preferred AMD is the Victaulic Series
757.
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
3
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
Note:
When both dry pipe and preaction fire sprinkler systems are connected to one nitrogen generator,
additional equipment may be required if the fire sprinkler systems operate at different supervisory gas
pressures.
Step 4:
Plumb the Condensate Drain Line
The ECS Protector Nitrogen Generator will occasionally discharge a small amount of condensate water
from the coalescing filters inside the cabinet. It is recommended that the 1/4” drain connection be
plumbed to a floor drain or building exterior. When plumbing to a drain is not feasible an evaporative
collection chamber can be used.
Step 5:
System Signals and Monitoring, where used
The nitrogen generator cabinet has two (2) system signals and five (5) outputs that can be monitored
by the facility’s BMS or fire alarm system.
•
•
The nitrogen generator is operating in the bypass mode which is activated when the bypass valve is
in the “fast fill” position to fast fill the fire sprinkler system and the air supplied directly from the
air compressor has reached a pressure of 20 psig. (Flashing amber light)
The nitrogen generator is equipped with a leak monitor audible signal which is activated when the
nitrogen generator runs excessively. (Audible signal)
The nitrogen generator cabinet includes system monitoring signals which can be monitored through a
building monitoring system, if desired:
•
•
•
•
•
Nitrogen Generator Loss of Power (Form C contacts)
Bypass Mode Alarm (Form C contacts)
Nitrogen Generation Mode (Form C contacts)
Nitrogen System Supply Line Pressure (Analog Signal)
Leak Monitoring (Form C contacts)
By-Pass Alarm
Monitoring Output
Nitrogen Generator
Power Monitoring Output
Leak Monitoring Output
Nitrogen Generation
Monitoring Output
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
4
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
ECS Protector Dry Pipe
Venting Device
Nitrogen/Air
Supply Line
Nitrogen
Generator
Air
Compressor
Dry/Preaction
Sprinkler Risers
Maintenance of the ECS Protector Nitrogen Generator
The nitrogen cabinet contains three (3) separate cartridge filters. It is recommended that each filter be replaced
as part of an annual preventative maintenance program. In some environments it may be necessary to replace
filters more frequently. The filter kit for the PGEN-30 is part number PGEN-FKS. When maintained properly the
nitrogen separation membrane will provide up to 20 years of service life.
Filter Replacement Procedure
Preliminary Steps (taking the nitrogen generator out of service)
1. Turn the power supply to the unit off
2. Close the inlet and outlet ball valves on the bypass loop
3. Depressurize the nitrogen generator internal inlet piping by slowly unscrewing the petcock valve on the bottom
of the leftmost filter housing
Coalescing Filter Cartridge Replacement Procedure
The filters with condensate drain tube extending from the bottom of the filter housing are coalescing filters. To
replace the filter cartridges follow Steps 1 through 6 on the following page.
Clear
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
5
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
Step 1:
Grasp the ¼” clear drain tube on the bottom of the filter housing with the right hand. With the left hand,
push upward on the grey retaining ring on the filter housing outlet fitting. This will allow for the ¼” clear
drain tube to be removed from the fitting.
Step 2:
Once the ¼” clear drain tube has been disconnected, the filter housing bowl may be unscrewed from the
top portion of the filter housing which is connected to the internal system piping.
Step 3:
Once the filter housing bowl has been unscrewed, the filter cartridge inside is removed by first
unscrewing the black retaining disc at the base of the cartridge and then pulling down on the cartridge.
Discard the old filter cartridge and replace it with the appropriately marked filter cartridge from the
filter replacement kit by pushing up so that it fits snugly onto the receiving cylinder in the upper part of
the filter housing. Screw the black retaining disc back onto the central metal threaded rod.
Important: HAND TIGHTEN ONLY!
Top of Filter
Housing
Filter Cartridge
Step 4:
Black Disc
Replace the filter housing bowl by screwing it onto the filter housing top.
Important: HAND TIGHTEN ONLY!
Step 5:
Reconnect the ¼” clear drain tube into the fitting on the filter housing bowl. Make sure that it fully seats
in the fitting and is retained snugly.
Step 6:
Repeat Step 1 through Step 5 for each additional filter.
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
6
ECS Protector
Nitrogen Generator
designed for fire sprinkler systems
Activated Carbon Filter Replacement Procedure
The filter without condensate drain tube extending from the bottom of the filter housing is an activated carbon
filter. To replace the filter cartridge follow the steps below:
Step 7:
Remove the filter housing bowl by unscrewing it from the top portion of the filter housing which is
connected to the internal system piping.
Step 8:
Once the filter housing bowl has been removed, the filter cartridge inside is removed by first unscrewing
the black retaining disc at the base of the cartridge and then pulling down on the cartridge. Discard the
old filter cartridge and replace it with the appropriately marked filter cartridge from the maintenance kit
by pushing up so that it fits snugly onto the receiving stepped cylinder in the upper part of the filter
housing. Screw the black retaining disc back onto the central metal threaded rod.
Important: HAND TIGHTEN ONLY!
Step 9:
Replace the filter housing bowl by screwing it onto the filter housing top.
Important: HAND TIGHTEN ONLY!
Step 10:
Tighten the petcock valve to the closed position.
Step 11:
The PGEN-30 unit can now be placed back into service.
Return the ECS Protector Nitrogen Generator to Service
1. Turn the power supply to the unit on.
2. Open the inlet and outlet ball valves, and close the bypass valve on the bypass loop.
3. Check inside the nitrogen generator cabinet for leaks using a soap water solution. Tighten fittings where
needed.
ECS Protector Nitrogen Generator Optional Monitoring Equipment
•
ECS Protector Handheld Gas Analyzer (PHGA-1): portable handheld gas analyzer includes one-button
calibration and enables user to measure nitrogen concentration at nitrogen generator cabinet or gas
sampling ports on ECS venting devices
•
ECS Protector SMART Gas Analyzer (SGA-1): permanently installed near an ECS Protector Manual/
SMART Vent to continuously report nitrogen gas concentration to a building information or management
system; includes digital display and provides 0-5V DC or 4-20mA output signals
•
ECS In-Line Corrosion Detector (ILD-X): installed in-line within the fire sprinkler system piping at
locations most susceptible to corrosion; provides either a local push-button test/indicator or control
panel monitoring
Engineered Corrosion Solutions  11336 Lackland Road  St. Louis, MO 63146  Phone 1-314-432-1377 www.ecscorrosion.com
ECS Protector Nitrogen Generator PGEN-30
July 2017 - Rev 5
7
8