Daikin Vision Installation And Maintenance Manual page 44

Filter Gauges
Filter gauges indicate pressure drop for installed filters. If
prefilters are present, the gauge will indicate the pressure drop
for both pre-and final filters
Table 27 shows the typical filter pressure drop for clean filters
at rated air flow. The tables also show a final pressure drop for
front loaded filters.
Where a single filter gauge is used, the prefilters can be
removed to check the pressure drop of the final filters.
Table 27: Filter Pressure Drops - Flat Panel and High Efficiency Cartridge
5700
Face
2"–Side MERV 7 2"–Front MERV 7
Velocity
Initial Final Initial
500
0.22 1.00 0.27
fpm
Face
12"–Side MERV 11 12"–Side MERV 13 12"–Side MERV 14 12"–Front MERV 1112"–Front MERV 1312"–Front MERV 14
Velocity
Initial Final Initial
500
0.34 1.20 0.49
fpm
Face
4"–Side MERV 11 4"–Side MERV 14 4"–Side MERV 15 4"–Front MERV 11 4"–Front MERV 14 4"–Front MERV 15
Velocity
Initial Final Initial
500
0.38 1.50 0.55
fpm
Face
4"–Side MERV 11 4"–Side MERV 14 4"–Side MERV 15 4"–Front MERV 11 4"–Front MERV 14 4"–Front MERV 15
Velocity
Initial Final Initial
500
0.24 2.00 0.31
fpm
Table 28: Filter Pressure Drops - High Efficiency Bag
Face 12"–Side MERV 8 12"–Front MERV 8 15"–Side MERV 8 15"–Front MERV 8 19"–Side MERV 8 19"–Front MERV 8 21"–Side MERV 11 21"–Front MERV
Velocity
Initial Final Initial
500
0.20 1.00 0.23
fpm
21"–Side MERV 14 21"–Front MERV 14 21"–Side MERV 15 21"–Front MERV 15 30"–Side MERV 11 30"–Front MERV 11 30"–Side MERV 14 30"–Front MERV 14
Face
Velocity
Initial Final Initial
500
0.44 1.00 0.50
fpm
30"–Side MERV 15 30"–Front MERV 15 36"–Side MERV 11 36"–Front MERV 11 36"–Side MERV 14 36"–Front MERV 14 36"–Side MERV 15 36"–Front MERV 15
Face
Velocity
Initial Final Initial
500
0.46 1.00 0.52
fpm
IM 915-13 • VISION - EXTENDED SIZES
Flat Panel Filter
PerfectPleatUltra
2"–Side MERV 8 2"–Front MERV 8
Final Initial Final Initial
1.00 0.36 1.00 0.42
Cartridge Filter
Varicel SH
Final Initial Final Initial
1.20 0.51 1.20 0.45
Varicel II MH
Final Initial Final Initial
1.50 0.63 1.50 0.46
Varicel V
Final Initial Final Initial
2.00 0.43 2.00 0.43
Final Initial Final Initial
1.00 0.18 1.00 0.21
Final Initial Final Initial
1.00 0.64 1.00 0.73
Final Initial Final Initial
1.00 0.19 1.00 0.22
Figure 68: Filter Gauge
PerfectPleatHC
4"–Side MERV 7 4"–Front MERV 7
Final Initial Final Initial
1.00 0.20 1.00 0.27
Final Initial Final Initial
1.20 0.65 1.20 0.67
Final Initial Final Initial
1.50 0.65 1.50 0.74
Final Initial Final Initial
2.00 0.52 2.00 0.66
DriPak 2000
Final Initial Final Initial
1.00 0.16 1.00 0.20
Final Initial Final Initial
1.00 0.24 1.00 0.27
Final Initial Final Initial
1.00 0.27 1.00 0.30
44
Service and Maintenance
PerfectPleatUltra
4"–Side MERV 8 4"–Front MERV 8
Final Initial Final Initial
1.00 0.36 1.00 0.47
Final
1.20
Final
1.50
Final
2.00
Final Initial Final Initial
1.00 0.28 1.00 0.31
Final Initial Final Initial
1.00 0.33 1.00 0.38
Final Initial Final Initial
1.00 0.39 1.00 0.45
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Final
1.00
11
Final
1.00
Final
1.00
Final
1.00