Ideal when…
• Drying a specific area of the house.
• Running with A/C operation requires
backdraft damper on the exhaust port
to minimize backdraft when TrueDRY
DR90 is not on but A/C is.
SUPPLY
RETURN
AIR HANDLER
TrueDRY
M27326
SEPARATE
RETURN
BACKDRAFT
DAMPER
C
Dedicated Return to Main Supply
Ideal when…
• Drying a specific conditioned or
unconditioned area, such as attic,
basement, or crawl space.
• Running with A/C operation.
• Minimizing DAT is preferred.
Connect 1/2-in. drain tube to male connection drain out-
let. Secure drain tube to connector with hose clamp.
Run drain hose continuously downhill to an approved
drain or condensate pump.
Plumbing
Install to Fit Your Application (continued)
TrueDry DR90 Dehumidification System 69-2407EFS—01
6
SUPPLY
RETURN
AIR HANDLER
M27601
TrueDRY
SEPARATE
RETURN
D
Dedicated Return to Main Return
