Donaldson Cartridge Dust Collector DWS 4-3

Warning: This procedure requires trained personnel with PPE!

Enter the location for mounting the gauge

Pressure ports on the back of the gauge plugged using the two supplied 1/8-inch NPT pipe plugs

One 1/8-inch NPT male adapter installed into the low-pressure port on the side of the gauge

Mounting bracket attached using three #6-32 x 1/4-inch screws supplied

Gauge and bracket assembly mounted to the supporting structure using three self-drilling screws

Gauge zeroed and maintained as directed in the manufacturer’s operating and maintenance instructions

Sign off on the Magnehelic Gauge Replacement

Instruct all personnel on safe use and maintenance procedures.

Use proper equipment and adopt all safety precautions needed for servicing equipment. Electrical service or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

Turn compressed air supply off and bleed lines before performing service or maintenance work.

Do not set compressed-air pressure above 50 psig. Component damage can occur.

All compressed air components must be sized to meet the maximum system requirements of 60 psig supply pressure.

The compressed-air supply must be oil and moisture free. Contamination in the compressed air used to clean filters will result in poor cleaning, cleaning valve failure, or poor collector performance.

Purge compressed air lines to remove debris before connecting to the unit’s compressed air manifold.

Warning: Electrical work must be performed by a qualified electrician and comply with all applicable national and local codes. Turn power off and lock out electrical power sources before performing service or maintenance work. Do not install in classified hazardous atmospheres without an enclosure rated for the application.

The Photohelic combines the functions of a differential pressure gauge and a pressure-based switch. The gauge function measures the pressure difference between the clean and ambient air and provides a visual display of filter condition. The low-pressure tap is located in the clean-air plenum on the back of the cabinet. The pressure-based switch function provides high-pressure ON and low-pressure OFF control of the filter cleaning system.

Choose a convenient, accessible location on or near the unit for mounting that provides the best visual advantage.

Mount the gauge to the remote panel or door using the mounting ring, retaining ring, and four #6-32 x 1 1/4-inch screws. Do not tighten screws. Connect one 1/8-inch NPT x 1/4-inch OD male adapter to the low-pressure port of the gauge. Align the adapter to the 2.375-inch hole in the right-hand side of the mounting bracket. Tighten screws.

Zero and maintain the gauge as directed in the manufacturer’s operating and maintenance instructions provided.

Sign off on the gauge replacement

Sprinkler systems place a large quantity of water in the dust collector when activated. Provide adequate drainage to remove water. Excess water weight can cause the leg structure to collapse.

Optional fire control sprinklers are available for all models operating under negative pressure. Donaldson Torit supplied sprinklers require a minimum of 15 psig water pressure to each module. The volume of water discharged per sprinkler head is 20 gallons per minute.

Consult with local authorities when installing fire control systems on dust collection equipment.

1. Open the front access doors to access the sprinkler tap located in the dirty-air plenum.

2. Apply pipe sealant to the threads of the pipe reducer located on the sprinkler assembly.

3. Thread the sprinkler assembly onto the 1-inch diameter sprinkler tap.

Warning: Electrical work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

Control panel mounted in a convenient, accessible location

Tubing connected to the low-pressure barbed fitting on the control panel and to the barb fittings on the rear of the power module marked Low

Upload a photo of the control panel wired to the motor and solenoid valves

Blower motor turned on and off for rotation check

To reverse rotation with a three-phase power supply: Turn electrical power off at the source and switch any two leads on the output side of the blower-motor starter.

Compressed-air supply connected following the instructions in Compressed Air Installation