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PLUMBING
STEP THREE: Connect to the Water Drain
• Consult and follow local plumbing codes for drain
pipe size and flow requirement.
• The ideal installation is directly to the main floor
drain using the rubber hose provided.
• If direct floor drain access is not available, see
“Appendix B: Advanced Draining.”
Connect the 1/2-in. drain hose provided to the drain
fitting on the bottom of the humidifier.
Use the hose clamp provided to secure the drain hose
to the fitting.
Route the drain hose to the floor drain. The hose must
have a continuous downward slope.
Direct the hose outlet into the floor drain. Secure
the hose to reduce the risk of water pooling or
splashing as it drains from the humidifier.
HE300 ONLY: Return Duct Installation
If a return duct installation is required, a trap
must be installed in the drain line. A hard trap is
recommended, but a coil in the line, secured with tape
or zip tie, is also acceptable.
MCR29881
Before proceeding to Wiring:
I have connected the water supply line to the humidifier and the main water tap.
I have installed the drain connection.
I have checked all plumbing connections for leaks.
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M32929
Humidifier 69-2413EF—05
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