Table 2 Water Cooling Block Supply Requirements - Edwards nEXT85 Instruction Manual

1. Connect the cooling water supply to the water cooler on the pump as described below.
Either of the two push fit connectors on the water cooler can be used for the water
supply or return connections.
2. Push nylon hose (approximately 10 mm outer diameter) into the ends of the hose
connectors on the water cooler on the pump. Alternatively, remove the hose
connectors from the water cooler and make direct connections to the 1/8 inch BSP
female threaded fittings on the water cooler.
3. To avoid breaking the cooling water circuit when removing the pump for maintenance,
unscrew the two M6 fixing screws and remove the water cooler from the pump.

Table 2 Water cooling block supply requirements

Parameter
Quality
pH Value
Maximum calcium carbonate concentration
Maximum chloride concentration
Minimum oxygen concentration
Minimum water-cooling flow rate (at 15 °C)
Water temperature range
Maximum water pressure
Materials exposed to cooling water
B8G0-00-880A - Install the nEXT85
Specification
Mechanically and optically clean with no
deposits or turbidity
6.0 to 8.0
75 parts per million
100 parts per million
4 parts per million
15 l h
10 °C to 40 °C
5 bar (gauge), 72.5 psig, 5 x 10
Nickel plated brass
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Pa gauge