Energenics FRP-4 - User Manual

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1470 Don Street  Naples, Florida 34104 Telephone: (239) 643-1711

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Installation & Operation Manual

For ENERGENICS

In-Line Space Saver Lint Filters

Descriptions Page

Table of Contents 1

Description of Lint Filter Operation 2

Lint Filter Control Sequence of Operation 3

Receiving and Installation 4

Important Installation Considerations 5

Warnings/Cautions 6

Dimensional Drawing 7

Dimensional Table 8

Typical Installation – Without Optional AFO (Booster Fan) 9

Typical Installation – With Optional AFO (Booster Fan) 10

Utilities Installation 11

Sheet Metal Installation 12

Compressed Air Requirements 13

Fire Suppression Water System (optional) 14

Proper Application with Booster Fans & Variable Frequency Drives 15

007 Control Installation Instructions:

Omron Obsolete UL® Control Schematic & Wiring Diagram 16

IDEC Obsolete UL® Control Schematic & Wiring Diagram 17

IDEC UL®PLC CONTROL

IDEC UL® PLC Control Schematic & Wiring Diagram 18

Change Blowdown & Excess Pressure Set-Point 19

Change Timed Blowdown Intervals 20

Disable Blowdown when all Dryers turn off 21

Tubing Connections (Shown with Optional Airflow Optimizer if Ordered) 22

Connection Requirement 9002.5 23

Connection Requirement (Side View) 9002.6 24

Maintenance Requirements 25

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The Energenics In-Line Space Saver Lint Filter is a sophisticated lint collection system designed for laundry facilities, incorporating advanced features and UL-approved controls to ensure efficient operation and safety.

Function Description

The primary function of the lint filter is to automatically collect lint from dryer exhaust, preventing its accumulation in ductwork and mitigating fire hazards. It achieves this through a "blowdown" (cleaning) cycle, which is initiated based on system backpressure or at the end of a dryer cycle. The control system monitors backpressure and triggers a blowdown when a set reference (default 0.5" w.c.) is reached. This ensures continuous screen cleaning, removing approximately 70% of lint even when dryers are operating, and 100% when dryers are off. A manual blowdown can also be initiated.

The system includes an optional Excess Pressure Alarm, which activates a siren and strobe light if the lint filter fails to blow down properly, indicating higher than normal backpressure. In such cases, the filter control attempts to blowdown every 20 seconds until the condition is resolved.

An optional Fire Control System is integrated for enhanced safety. A sensor inside the filter, at the top of the inlet, closes at 275°F, activating a water solenoid, strobe, and siren. The alarm remains active until 30 seconds after the temperature drops below 275°F, then automatically resets. A test button within the control box allows for circuit testing of the fire control system.

Important Technical Specifications

General:

Power Supply: Dedicated 120-240V single-phase electrical service for the PLC.
Wiring: Minimum 18 gauge for proper operation.
Control Box: Should be mounted in a visible, easily accessible location, away from vibration, and never outdoors.
Solenoid Valves: Should be mounted as close to the filter as possible, always inside the building, to maintain pressure charge for efficient operation.
Air Pressure Gauge: Supplied and mounted at the blowdown pipe on top of the filter.

Blowdown Cycle:

Backpressure Setpoint (Dryers Operating): Default 0.7" W.C.
Air Solenoid Activation: 10 seconds.
Delay Before Blowdown: Default 10 seconds.
Interval Between Blowdowns (Compressor Refill): 3 minutes.
Excess Pressure Alarm Setpoint: Default 1.5" W.C.
Timed Interval Blowdown: Default 2 hours, air blowdown solenoid activated for 10 seconds.
Rotor Operation: Should turn 6-12 times during blowdown, adjustable by increasing horizontal holes on the rotor end.

Compressed Air Requirements:

Supply Pressure: 100 psi.
Minimum Operating Pressure: 80 psi (less than 80 psi will not clean the screen automatically).
Pressure Drop During Blowdown: Should start at 100 psi and not drop below 60 psi during a 10-second cycle.
Air Consumption: Approximately 40 cubic feet at 100 psi during a 6-second blowdown.
Supply Line: 1" minimum.
Air Accumulator (Optional): 80-120 gallon storage tank, recommended within 50 linear feet of the filter if air supply is marginal or main is inadequate.

Fire Suppression Option 41 (Optional):

Sensor Activation Temperature: 275°F.
Water Solenoid: 3/4" with 30-50 psi cold water supply.
Spray Head: (1) 8 gpm.
Alarm Reset: 30 seconds after temperature drops below 275°F.

Ductwork and Installation:

Lint Drop Pipe: Allow 4' for lint to travel before the first bend (max 30-degree angle).
Exhaust Discharge: Recommended Side Discharge or field-installed swept radius elbow (Gooseneck) for outdoor installations; avoid conical caps.
Backdraft Dampers: May be necessary in multi-dryer/multi-duct installations to prevent lint backflow.
Duct Velocity: Must be 2000-2500 CFM.
Booster Fan (Optional): If used, a barometric damper or Variable Speed Drive is required between the filter and the fan. The filter pressure should be slightly positive.
Airflow Optimizer (Optional): Energenics supplies a Booster Fan controlled with a Variable Frequency Drive (VFD) monitoring back pressure via a pressure transducer. The VFD operates in PID mode, maintaining back pressure between 0" and 0.12" W.C. (default 0.12" W.C.).

Usage Features

Automatic Operation: The filter automatically monitors backpressure and initiates blowdown cycles, ensuring continuous lint removal.
Manual Blowdown: A button on the control allows for manual initiation of the blowdown cycle.
Alarm System: Visual (strobe) and audible (siren) alarms for excess backpressure and fire conditions.
Fire Control Test: A dedicated button inside the control box allows for testing the fire control circuit.
Adjustable Setpoints: Blowdown and excess pressure setpoints can be adjusted via the control interface, along with timed blowdown intervals.
Disable Timed Blowdown: The system allows for disabling timed blowdown when all dryers are off.
Optional Vacuum Output: When the air solenoid activates, a 24 VDC output on Blowdown 2 operates the vacuum system and opens the gate valve for 20 seconds, if the filter is equipped with the Energenics lint evacuation vacuum system.

Maintenance Features

Weekly Inspection: Visually inspect the filter (inside and out), controls, and operation. Note and correct any discrepancies.
Monthly Static Pressure Check: Disconnect the pressure hose (labeled intake) and use a magnehelic gauge, manometer, or U-tube to measure and record resistance. This helps monitor system operation and ensures the rotor is turning correctly.
Monthly Air Pressure Check: Record the pressure drop during the blowdown cycle. Ensure the pressure starts at 100 psi and does not drop below 60 psi.
Quarterly Fire Sensor Test: For filters with fire protection control, carefully test the fire sensor by heating it with a non-flammable source (e.g., heat lamp). This activates the audible tone, light, and water solenoid valve. The internal push button only tests the circuit, not the sensor itself.
Screen Cleaning:
- Use an engine degreaser (e.g., GUNK) on clogged screens, allowing it to soak per instructions.
- Spray clean with water.
- Wash polyester screens in a wash cycle.
- Operate one dryer without a load to blow hot air through the filter to dry it.
- Restart the dryer; operation should return to normal. Screen replacement is only necessary if punctured.

Energenics FRP-4 Specifications

General

Brand	Energenics
Model	FRP-4
Category	Water Filtration Systems
Language	English