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OUTDOOR AIR VENTILATION
Outdoor air ventilation is optional.
Outdoor air may be brought into the structure by connecting an insulated duct from outside the structure to
a tee located in the inlet duct of the Santa Fe Ultra70. 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.
•
The 6" outdoor air ventilation duct should tee into the 8" round collar on the front of the Santa Fe
Ultra70.
•
An insulated 6" diameter duct can provide up to 55 CFM of outside air.
•
Performance of the Santa Fe Ultra70 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 Ultra70 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.
Outdoor Air
90°F, 65%RH
A
Motorized Damper
B
Indoor Air
70°F, 50%RH
Outdoor Air
30°F, 65%RH
A
Motorized Damper
B
Indoor Air
70°F, 50%RH
800.533.7533 | Santa-Fe-Products.com
Hot Climate
6" Optional Outdoor
A
Air Intake
8" Return Air Inlet
B
B
8" Supply Air Outlet
C
Mixed Air
Mixed Air
Mixed Air
75°F
75°F
75°F
65%RH
65%RH
65%RH
Cold Climate
6" Optional Outdoor
A
Air Intake
8" Return Air Inlet
B
B
8" Supply Air Outlet
C
Mixed Air
Mixed Air
Mixed Air
59°F
59°F
59°F
51%RH
51%RH
51%RH
Santa Fe ULTRA70 Installation & Operation Instructions
C
Outlet Air
75°F, 65%RH
C
Outlet Air
59°F, 51%RH
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