Edwards nEXT85 - Table 2 Water Cooling Block Supply Requirements

1. Connect the cooling water supply to the water cooler on the pump as described below.
Either of the two push t connectors on the water cooler can be used for the water
supply or return connecons.
2. Push nylon hose (approximately 10 mm outer diameter) into the ends of the hose
connectors on the water cooler on the pump. Alternavely, remove the hose
connectors from the water cooler and make direct connecons to the 1/8 inch BSP
female threaded ngs on the water cooler.
3. To avoid breaking the cooling water circuit when removing the pump for maintenance,
unscrew the two M6 xing screws and remove the water cooler from the pump.
Table 2
Water cooling block supply requirements
Parameter Specicaon
Quality Mechanically and opcally clean with no
deposits or turbidity
pH Value 6.0 to 8.0
Maximum calcium carbonate concentraon 75 parts per million
Maximum chloride concentraon 100 parts per million
Minimum oxygen concentraon 4 parts per million
Minimum water-cooling ow rate (at 15 °C) 15 l h
-1
Water temperature range 10 °C to 40 °C
Maximum water pressure 5 bar (gauge), 72.5 psig, 5 x 10
5
Pa gauge
Materials exposed to cooling water Nickel plated brass
B8G0-00-880A - Install the nEXT85
Page 34