![GE E4H-16K Operation And Maintenance Manual Download Page 34](http://html.mh-extra.com/html/ge/e4h-16k/e4h-16k_operation-and-maintenance-manual_134466034.webp)
Operations and Maintenance Manual
E4H Series Water Purification Machine
34
5.2 External Controls
Your E4H RO machine is equipped with External Control capability. External Control is the
on/off control of the RO via a signal from a remote device. The External Control could be
remote on/off, level control, pre-treatment lockout, and/or post-treatment lockout, etc.
Utilization of this feature requires a customer-wired control loop, wired to factory-supplied
terminals. Refer to either the DLX or ECN electrical drawings for proper wiring and/or
electrical connections.
5.3 Filters and Water Softeners
Backwashable filters and softeners should be installed such that unfiltered or unsoftened
water will not be fed to the machine while the RO unit is operating. Failure to do this may
cause fouling or precipitation of calcium carbonate or other materials onto the membranes.
5.4 Storage Tanks
Fiberglass, polyethylene and stainless steel storage tanks are available. All tanks are
available with fittings installed at the factory. These tanks must be installed with even
support along the bottom.