Installation Instructions
(1) Select a mounting location near the appliance. The pump must be mounted level and
horizontally. Run flexible corrosion resistant tubing or pipe from condensing appliance drain
into the inlet of the NT25-P18. Be sure the inlet piping is sloped downward to allow gravity
flow.
(2) Connect the provided 3/8” I.D. outlet tubing with the check valve. Extend outlet tubing from
the NT25-P18 straight up as high as necessary, but not higher than the maximum head/flow rate
(see pump performance on page 5) of the pump. Be sure that the outlet piping is not twisted or
clogged.
(3) Do not route the condensate line through any area that is exposed to freezing temperatures. If
traffic poses a risk, install some protection to prevent movement and/or damage.
(4) Check that the power source voltage matches with the pump’s requirement. Connect the
pump’s power cord to a constant source of power (not a fan or other device that runs
intermittently). Do not connect or link the appliance’s power cable directly to the pump’s power
cable. Use each of their power plugs respectively. If the pump’s power cable should be
extended, use a cable of same specification. All wiring should be done by qualified service
technician.
(5) Ensure that the condensate will flow freely from the appliance condensate drain into the NT25-P18,
and that the pump will remove the condensate to the drain.
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