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Summary of Contents for IGS MBG-N5.5
- Page 1 OPERATION AND MAINTENANCE MANUAL Version 2 April 2019...
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Page 2: Model Reference
IGS MBG-N5.5 Positioning Requirements The IGS Microbubble Generator is designed to sit above the water level of the water body to be aerated. Both suction and delivery hoses need to downwards to the water. Under no circumstances should these hoses be raised above the unit itself - e.g., over the top of a tank. - Page 3 The unit shown above has protective coverings on the outside and the unit that you receive may have some of this protection or it may be removed. Your unit will have a IGS Water signage on it with contact phone numbers and web details.
- Page 4 Always ensure the washer is inserted into the hose connection to prevent leakage Shown here is the delivery hose connection. The delivery hose is a high-pressure hose which is screwed onto the connection found at the left- hand side of the unit in the lower left corner.
- Page 5 Shown at left is the foot valve connected and lying on the bottom of a tank. At the top of the picture, you can see there are two clear hoses connected to the foot valve. Connect these two hoses to the foot valve with the larger hose connected to the applicable piping and the smaller hose connected to the smaller pipe.
- Page 6 Have the orange valve fully open: If this valve is included in your unit, ensure it is fully open during operation. This ensures the valve does not throttle the water flow in any way. The photo at left shows the valve partially closed – make sure this remains fully open during operation.
- Page 7 On the front of the electrical box is a switch. To switch one way is to start the unit automatically, and to switch the other is manual. This switch has a sticker showing which way is which. Turn the switch to automatic, after ensuring that the foot valve is in water. Primer pump starts first: At left is the primer pump.
- Page 8 Should it stop operating check the water supply is still OK and start again. If the pump still does not work the electrical supply will need to be checked. If the electrical supply is found OK, then contact IGS for further assistance. Actuators: These actuators are critical for the operation of the system.
- Page 9 Use of pressure gauge on top of cylinder: This pressure gauge needs to show an operating pressure of 0.7 for the unit to be creating microbubbles at the highest efficiency. In start-up operation the pressure will read anywhere either side of 0.7. An operator needs to adjust the air flow to achieve a 0.7 reading on this gauge.
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Page 10: Maintenance
Once achieved, then tighten the lock nut by screwing down until tight against the base, but not that tight to cause damage to the screw or locknut. Allow the unit to run for up to five minutes with regular checks on the pressure gauge. -
Page 11: General Check
IGS recommends a log of cleaning frequency is kept assisting in knowing how often this needs to be cleaned. Each water body has different amounts of organics and particles in it and as such there is no set procedure. Dirty water will require more frequent cleaning than cleaner water.
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