AirTap ATI50 Technical Manual page 14

AIRFLOW: DUCTING & FAN SPEED
B. FAN SETTINGS (CONT.)
No. of
Elbow
*The airflow rates above apply to rigid ducting having a smooth inner surface. Airflow rates will be impacted by turns and length at a significantly higher rate if the
ducting is flexible and has a ridged surface. For duct lengths longer than 10 feet, rigid ducting is recommended.
C. DUCTING INTAKE AIR
The AirTap Hybrid water heater is also available in a double vent version. The DV series can be ducted for both exhaust
and intake air.
Duct Configuration [Ft]
5
10
1
25
5
10
2
25
5
3 10
25
Airflow
Airflow Measurement Point
[Ft]
2.5
7.5
22.5
2.5
7.5
22.5
2.5
7.5
22.5
Tab. 5
Fig. 7
14
High Speed Fan Low Speed Fan
Measurement Measurement
Airflow [CFM] Airflow [CFM]
216.00 169.00
216.00 169.00
204.00 161.00
204.00 161.00
210.00 161.00
198.00 153.00
198.00 153.00
198.00 153.00
198.00 153.00
Airflow