Spec Sheet

Home and Building Technologies
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
http://customer.honeywell.com
® U.S. Registered Trademark.
© 2017 Honeywell International Inc.
33-00330—01 M.S. 07-17
Printed in U.S.A.
Installation Recommendations and Options
SUPPLY
RETURN
AIR HANDLER
DEHUMIDIFIER
M36940
SEPARATE
RETURN
BACKDRAFT
DAMPER
(OPTIONAL)
GRAVITY DAMPER
A
Dedicated Return to Main Supply
SUPPLY
RETURN
AIR HANDLER
DEHUMIDIFIER
M36941
BACKDRAFT
DAMPER
B
Main Return to Main Supply
SUPPLY
RETURN
AIR HANDLER
DEHUMIDIFIER
M36942
C
Main Return to Main Return
DEHUMIDIFIER
M36943
SEPARATE
RETURN
SUPPLY
D
Dedicated Return to Dedicated Supply
Ideal when…
• Access to a dedicated central return for
DR120A3000 is available.
• Combined with A/C operation; requires
backdraft damper on the exhaust port to
minimize backdraft when DR120A3000 is not
on but A/C is.
• Providing dry air to a specific area with
an optional 20% open gravity damper on
DR120A3000 supply.
Ideal when…
• Running DR120A3000 when not running
A/C. Requires damper on the exhaust port to
minimize backdraft when DR120A3000 is not
on but A/C is.
• Access to a dedicated central return for
DR120A3000 is not available.
• System fan should run with dehumidifier for
best results.
Ideal when…
• DR120A3000 will not be ducted to a forced
air HVAC system.
For best performance, the minimum distance required between the air inlet
and outlet when utilizing a Main Return/Main Return location is 5 feet.
Ideal when…
• Running DR120A3000 with A/C operation.
• System fan must run with dehumidifier.
• Minimizing discharge air temperature (DAT)
increase is preferred.
• Access to a dedicated central return for
DR120A3000 is not available.