Install To Fit Your Application - Honeywell TrueDRY DR90 Installation Manual

Install to Fit Your Application

Flex duct is recommended in connecting to the TrueDRY DR90 collars to reduce vibration noise.
Main Return to Main Return
A
RETURN
TrueDRY
Main Return to Main Supply
B
RETURN
TrueDry DR90 Dehumidification System
AIR HANDLER
AIR HANDLER
SUPPLY
BACKDRAFT
DAMPER
TrueDRY
69-2407EFS—01
Duct Sizing: Use minimum 10-in. diameter round for
duct lengths up to 25 ft. Minimum 12-in. required for
lengths longer than 25 ft. Duct branches from the
main inlet/exhaust should be minimum 10-in. round
for 2-3 branches, and 12-in. round or larger for 4
branches or more.
For the optional fresh air ventilator port, use 6-in.
round, insulated duct for lengths up to 50 ft.
Use 8-in. round duct for more than 50 ft. of if more
than 100 CFM is required.
Isolated Areas: Effective dehumidification may require
ducting to isolated or stagnant air flow areas.
Electrical requirements:
115 VAC outlet. Ground fault
interrupter (GFI) recommended.
Ideal when...
SUPPLY
• Running TrueDRY DR90 with A/C
operation.
• Minimizing discharge air temperature
(DAT) increase is preferred.
• Space dictates.
M27325
Ideal when...
• Running TrueDRY DR90 opposite A/C
operation. Running with A/C operation
requires damper on the exhaust port
to minimize backdraft when TrueDRY
DR90 is not on but A/C is.
• Space dictates.
M27324
M24745
5