▪ Natural convecon c
ooling – only for nEXT730D and nEXT930D:
For some light pumping dues, with an ambient air temperature less than 25 °C,
natural convecon cooling may be adequate to cool the nEXT pump.
▪ Forced air cooling – opon:
The ambient air temperature must be 5 °C to 40 °C when using forced air cooling.
Ensure that there is an adequate supply of cooling air to the pump.
▪ Water cooling – standard for nEXT1230H, opon for nEXT730D and nEXT930D:
Use water cooling with higher load applicaons or when using a ange heater (CF
variants only). When using water cooling, ambient air temperature must be less
than 40 °C and the water temperature must be between 10 °C and 40 °C.
Refer to Figure: Cooling requirements for further performance informaon.
5.8.2 Forced air cooling
The customer controller can be congured to drive an air cooler only if commands can
be sent via the serial interface or an Edwards TIC Turbo and Instrument Controller or
Turbo Controller.
Air cooling accessories are available for nEXT pumps. Fit the air cooler as described in
the instrucon manual supplied with it. If an alternave fan is used for air cooling,
ensure that the ow rate is above 100 m
3
h
-1
(60 cfm).
The air cooler can be powered by a customer external power supply, the Edwards TIC
Turbo and Instrument Controller, the TIC Turbo Controller or the nEXT Controller. Plug
the connector into the socket at the side of the controller.
5.8.3 Water cooling
Figure 26 Aaching the wa
ter cooling
1. Hose connecons f
or 6x1 hose1. Hose connecons for 6x1 hose
The nEXT1230H pump has a built-in cooling water block as standard.
For nEXT730D and nEXT930D: Aach the cooling water block to the pump with four M4
screws, ghtening torque is 3
+1
Nm.
08/2021 - ©Edwards Limited
Page 64B8J200880_D
300812671_002_C3
B8J200880_D - Inst
allaon
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