Robust-Aire Owner’s Manual 800 Deere Rd. Prescott, WI 54021 • 715-262-4488 • sales@kascomarine.com • kascomarine.
OWNERS MANUAL TABLE OF CONTENTS Important Safety Instructions……………..………………………………………………………………...…Page 3 Diffuser Assembly Installation……………………………………………………………………………….…Page 3 Compressor Connections………………………………………………….………………………………...…Page 4 No Cabinet System Installation Requirements………….…………………………..………….………...…Page 6 Base Mount Cabinet Installation………………………………………………...….……….……………...…Page 8 Post Mount Cabinet Installation………………………………...........................………………………...
OWNERS MANUAL Important Safety Instructions CAUTION • • • • • • • • Caution should be used when dealing with any electrical equipment with moving parts. Extreme caution should be used around water, especially cold water, such as in Spring, Fall, and Winter, which poses a hazard in and of itself. Running the system in freezing conditions may create open areas of water in the ice at the diffuser locations and thin ice around the area.
OWNERS MANUAL 7. Once you reach the marked buoy, thread a rope through the two holes of the diffuser base. Pull through until the rope is at the midway point by the diffuser base. 8. While holding the two ends of the rope, gently lower the diffuser assembly into the water. 9. Continue lowering the assembly slowly until it reaches the bottom of the pond. 10. Pull up on only one side of the rope to bring it back. The Robust-Aire® Diffuser should now be seated properly on the bottom of the pond.
OWNERS MANUAL 13. Trench and bury tubing from the compressor to the shore.
OWNERS MANUAL Parts included in RA(H)4-NC, RA(H)5-NC and RA(H)6-NC Systems: (4 - 6) Robust-Aire Diffuser Assembly (4 - 6) 3/8” x 100’ SureSink Tubing w/fitting kit (2) Double Head Compressor (2) ¼” NPT x 3/8” barb brass elbow (8) Compressor Vibration Isolation Feet (8) ¼” Flat Washer (8) ¼” Lock Nut (2) Cooling fan assembly (either 115V with plug or 230V without plug (8) #10 x 3/4” bolt (8) #10 split washer (8) #10 Nut (4) Hose clamp (2) Two or Three Station Manifold Assembly (4) Manifold Mounting Screw In
OWNERS MANUAL RA(H)1-NC Shown RA(H)3-NC Shown 7
OWNERS MANUAL 120V compressors are supplied with a NEMA 5-15 Plug which can be plugged into a 120V receptacle. 240V compressors are supplied with flying leads. The leads can be hard-wired into 240V service or a plug can be installed on the cord if plugging into a receptacle. Kasco Marine highly recommends that the site service providing the system have a human-rated Ground Fault Circuit Interrupter outlet (120V) or human-rated Ground Fault breaker (240V) for your protection.
OWNERS MANUAL Post Mount Cabinet Installation The post mount cabinet can be attached to a 4x4 post or to a vertical wall (shed) with electrical service. (2) lag screws are provided to mount the post mount cabinet. Pre-drill (2) 3/16” holes vertically spaced 2 3/8” apart. Install (1) lag screw into the wall or post, leaving the hex head out about ¼” using a standard 7/16” socket wrench.
OWNERS MANUAL A trench will need to be excavated to bury the PVC air line. Start by determining the path of the trench from the Robust-Aire system to an area by shore. The path should be in as straight of a line as possible with a gentle downward slope from the Robust-Aire system down towards the shore. Excavate the trench 6” to 8” deep. For two or three station valve manifolds, excavate an area by shore to bury the included valve box. An area at least 18” wide by 25” long x 13” deep will be needed.
OWNERS MANUAL Startup Procedure Important Installation Warning Thermal stratification refers to the layering that can occur in some lakes which allows warmer (less dense) water to sit on the top of colder denser water on the lake bottom. The Robust-Aire™ Diffuser system has been designed to keep thermal stratification from occurring in the first place. In the event that you install your unit into a body of water that is extremely stratified, caution should be used as you start up the unit.
OWNERS MANUAL Winter Operating Tip: In climates where temperatures are likely to fall below freezing, it is recommended that you insulate the air lines from the compressor cabinet to a minimum of 3 feet into the water. Using closed cell polyurethane foam to insulate your air lines will prevent ice buildup in the lines which can occur due to condensation. Ice buildup in the line can block the flow of air to your diffuser and can cause damage to your compressor.
OWNERS MANUAL Check the compressor and capacitor wiring. If no damage is seen, a bad capacitor or compressor may be the issue. “The compressor and fan are running, but there are no bubbles coming out of any of our diffusers” Check for any leaks in the line connections and in the cabinet. Retighten any loose connections. The compressor air filter may need to be cleaned or replaced. “The compressor and fan are running. There are bubbles coming out of some diffusers, but not all of them.
OWNERS MANUAL Kasco Marine, Inc. 800 Deere Rd. Prescott, WI 54021 Attn: Repairs Or call Kasco Marine at 715-262-4488 to locate your nearest Authorized Repair Center. You can also email Kasco at returns@kascomarine.com. Please include the Repair Form received from Kasco Marine or your local distributor with the shipment.
