129 Detailed technical drawings VKM50GBM EA OA □ 450 - 600 EA OA Heat insulator (locally procured) Inspection hatch (locally procured) Suspention bolt (locally procured) RA (Return air from room) SA (Return air from room) Ø 200 Nominal diameter (locally procured) Control box Inspection hatch Sloping downwards at a gradient of the 1/100 A gradient of more than 1/30 Inspection hatch More than 600 Round shape hood (locally procured) (Fresh air to outdoors) (Fresh air to outdoors) Cistern tank (Exhaust air to outdoors) (Exhaust air to outdoors) Air suction grille (locally procured) Water supply shut-off valve (locally procured) Drain valve (locally procured) Strainer (locally procured) Air discharge grille (locally procured) Heat insulated (locally procured) Refrigerant piping (Gas pipe) (Ø 12.7 flare connection) Refrigerant piping (Liquid pipe) (Ø 6.4 flare connection) 360 (in case of 450 inspection hatch) 140 (in case of 600 inspection hatch) Maintenance space for the heat exchanger elements the air filters, fans and humidifier Branch duct (locally procured) Flexible duct (locally procured) Air discharge grille (locally procured) NOTES 1. Leave space for servicing the unit and include inspection hatch. (Always open a hole on the side of the control box so that the air filters heat exchange elements, and fans can easily be inspected and serviced.) 2. Install the two outdoor ducts with down slope (slope of 1/30 or more) to prevent entry of rain water, also, provide insulation for three ducts (outdoor ducts and indoor supply air duct) to prevent dew condensation. (Material: glass wool of 25mm thick) 3. Do not turn the unit upside down. 4. Use city water or clean water. Include water supply piping with strainer, a water supply shut-off valve, and a drain valve (both locally procured) somewhere along the water supply piping that can be reached from the inspection. 5. It is impossible to connect the water supply piping directly to public piping. Use a cistern tank (of the approved type), if you need to get your water supply from public piping. 6. Make sure the supply water 0.02MPa to 0.49MPa (0.2 kg/cm2 to 5 kg/cm2) 7. Make sure the supply water is between 5°C and 40°C in temperature. 8. Insulate the water supply piping to prevent condensation from forming. 9. Make sure to install drain piping, and insulate drain piping to prevent dew condensation. 10. Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air from forming. 11. Install in a location where the air around the unit or taken into the umidifier will not drop below 0°C. 12. Do not use a bent cap or a round hood as the outdoor hood if they might get rained on directly (we recommend using a deep hood) (optional accessory). 13. In areas where freezing may occur, always take steps to prevent the pipes from freezing. 14. Do not place something which shouldn’t get wet at the below of this unit. The dew would fall at following case, where humidity is 80% more, or the exit of drain socket is choked up, or the air filter is very dirty. 15. Feed clean water. If the supply water is hard water, use a water softener because of short life. Life of humidifying element is about 3 years (4,000 hours), under the supply water conditions of hardness: 150 mg/L. (Life of humidifying element is about 1 years (1,500 hours), under the supply water conditions of hardness: 400 mg/L.) 3D083011 Click here to view all VKM-GBM technical drawings on my.daikin.eu
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