25
1.800.627.4499
HE-Series Indoor
ERV
OPERATION
DIFFERENTIAL STATIC ACROSS CORE DSP VS. CFM
HE4
XI
N
V
DP (H
2
O)
DSP
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Fresh Air (FA)
CFM
1080 1620
2160
2700
3230
3770
4310
4850
Room Air (RA)
CFM
1100
1660
2210
2760
3310
3870
4420
4970
6.4.2 Filter Pressure Drop
FIGURE 6.4.1 INITIAL PRESSURE DROP OF MERV 8 FILTERS, SUPPLIED WITH THIS UNIT
Pleated_Filter_PD_APR16
(4)20x20x2 MERV 13 (IOM)
0.0
0.1
0.2
0.3
0.4
500 1000 1500 2000 2500 3000 3500 4000
Clean
-filter
Pressu
re
Dro
p
(in
.w
.g.)
Unit Airflow (CFM)
Initial Pressure Drop of MERV 13 Filters
(available option)
FIGURE 6.4.2 INITIAL PRESSURE DROP OF MERV 13 FILTERS, AVAILABLE AS AN ACCESSORY
Pleated_Filter_PD_APR16
(4)20x20x2 MERV 8 (IOM)
0.0
0.1
0.2
0.3
0.4
500 1000 1500 2000 2500 3000 3500 4000
Clean
-filter
Pressu
re
Dro
p
(in
.w
.g.)
Unit Airflow (CFM)
Initial Pressure Drop of MERV 8 Filters
supplied with this unit
NOTE: Clean filter
pressure drop is
included in unit
airflow perfor-
mance tables.
The proper operating air-
flow range for this model is
1000–4400 CFM.
CAUTION
