A.O. Smith ADR75-V-ET-1 User Manual page 19

Note: when the machine is restarted after filter replacement, the machine will alarm shortly for
water shortage. However, this is completely normal because the machine hasn't been filled
with water yet. It will stop alarming and return to normal quickly.
2) Please refer to " How to Install RO Membrane" (page 16) for replacement of the 4th stage
RO Membrane.
3) Replacement of the 5th stage post activated carbon
Firstly, turn off inlet switch and take out the water pipes on the two sides of the post activated
carbon to be replaced. Get a new filter and install it according to original water inlet and outlet
direction. Turn on inlet switch and the unit starts producing water normally. Yet produced water
can't be used until the new post activated carbon is flushed for 15 minutes.
3.Notes
1) Water output of RO membrane
Water output of RO membrane is subject to inlet pressure and inlet temperature. Nominal
75GPD of this machine is tested when the net pressure before RO membrane is 0.5MPa
and inlet water temperature is 25℃. If net pressure is less than 0.5MPa or water inlet
temperature is lower than 25℃, water output of RO membrane will be less than 75GPD.
The rated gross pure water output is 1000L (Tested according to requirements of Sanitary
Standard for Hygienic Safety and Function Evaluation on Treatment Devices of Drinking
Water——Reverse Osmosis Treatment Device.)
2) Treatment of old filter
The replaced old filter can't be cleaned or recycled. So it is recommended that old filter
shall be abandoned as solid household garbage and treated by professionals.
3) When you will not use the machine for an extended period of time, disconnect the
water and power source of water purifier.
4) When any of the following situations occur, immediately disconnect the water source
(and/or the power source from the purifier and call our national hot line.
◆ If the water purifier pipes or related components are leaking.
◆ If the water purifier's related components stop working.
◆ If electricity leaks from any components.
◆ if water leakage protector makes alarm. (See Diagram 12)
◆ If there are any other anomalies or failures.
◆ If related component of the water purifier is damaged, please contact with national
service hot line and our after-sale service staff will replace it for you to avoid damage. Our
company is not liable for any loss caused by operation not following this user manual.
disconnect the water sou
al hot line. al
g. g.
Diagram Diagram 12 12
ase contact with national nt t with atio l
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