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DIRECT EXTERNAL DRAIN
Make sure to check applicable local laws if this is type of drainage is permissible. Check that the expelled
water does will cause any damage or problems to people or objects. During winter, this water may create
sheets of ice outside.
Drainage is by gravity only. For this reason, it is essential that the discharge drain pipe have a minimum 3%
slope downwards at every point. The pipe can be rigid or flexible with a minimum ¾” diameter.
Note: If the line flows into a sewer system, it is necessary to add a siphon before placing the pipe into the
sewer drain. This siphon must be placed at least 12” under the drain pipe.
NOTICE
When connecting the condensate drain, be careful not to squeeze the
rubber hose
STEP 1 Make sure hole is set a 3 degree downwards angle
STEP 2 Place the rubber drain pipe inside the hole
STEP 3 Wrap the portion of rubber drain pipe located inside the room with % inside diameter anti-
condensation insulating material.
STEP 4 Properly seal the pipe penetration using best practices based on the application and
materials.
F HPAC 2.0
G External vents
1 Exterior drain hole
2 Anti-condensation
insulating material
3 Emergency drain
4 Condensate drain
pipe
1
1
A
2
B
3
4
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