OUTDOOR AIR VENTILATION
9
Outdoor air ventilation is optional.
Outdoor air may be brought into the structure by connecting an insulated duct from outside the structure to the
6" inlet of the Santa Fe Dehumidifier. A ventilation control is needed to program the time and frequency that the
unit introduces outside air. The time and frequency of ventilation should be based on the size and occupancy of
the residence.
•
An insulated 6" diameter duct can provide up to 1/3 of the total CFM of the unit depending on static
pressure. The Santa Fe Ultra155 can provide up to 130 CFM of outside air and the Ultra205 can provide
up to 175 at 0.0" WG.
•
The outdoor air ventilation duct should be connected to the 6" round collar on the front of the Santa Fe
Dehumidifier.
•
If a motorized damper is not being used, outdoor air is controlled by the manual damper in the 6" collar
of the Santa Fe Dehumidifier.
•
Performance of the Santa Fe Dehumidifier can be impacted by inside and outside air conditions.
•
When a 6" motorized damper is used, a digital control is required.
•
It may be necessary to use 8" duct work if additional outdoor air is required.
•
In cold climates or at times when the dew point is low, ventilation can be used to dehumidify the
structure, making the Santa Fe Dehumidifier capable of year-round drying.
1. Outdoor Air Ventilation With Dehumidifier Off and Fan Only Operation
Outside air mixes with return air prior to beginning the dehumidification process. Outside
and inside temperature and relative humidity will impact the combined outlet air conditions.
A
6" Optional Outdoor
Air Intake
B
10" Return Air Inlet
C
10" Supply Air Outlet
A
6" Optional Outdoor
Air Intake
B
10" Return Air Inlet
C
10" Supply Air Outlet
Note:
Temperature and relative humidity may vary depending on duct distribution scheme.
800.533.7533 | Santa-Fe-Products.com
A
Outdoor Air
90°F, 65%RH
B
Indoor Air
70°F, 50%RH
C
Outlet Air
75°F, 65%RH
A
Outdoor Air
30°F, 65%RH
B
Indoor Air
70°F, 50%RH
C
Outlet Air
59°F, 51%RH
Santa Fe ULTRA155/205 Installation & Operation Instructions
Hot Climate
Mixed Air
Mixed Air
Mixed Air
75°F
75°F
75°F
65%RH
65%RH
65%RH
Cold Climate
Mixed Air
Mixed Air
Mixed Air
59°F
59°F
59°F
51%RH
51%RH
51%RH
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