Trane GECA -006 Installation Owner Diagnostics page 33

Water Pressure Drop
Tables 2 and 3 should be used to define feet of head/pressure drop. Please note the feet of pressure (ft/head) provided
is at ARI/ISO standard. Note: To calculate feet of head, when using gauges that read in PSIG, multiply PSI by 2.31.
Table 2: Cooling water pressure drops
(WPD) in feet of head
Unit Size Unit Size EWT
60 HZ 50 HZ
006 -
009 006
012 009
015 012
018 015
Water Volume
Table 4 is provided for use in calculating glycol requirements for the unit.
Table 4: Water volume
Unit Size Unit Size
60 HZ 50 HZ
006-009 006
012-15 009-12
018 015
GECA-SVX01B-EN
Sequence of
Operation
Ft.
GPM
F Pressure
86 1.8 2.6
86 2.3 4.1
86 3.3 9.4
86 3.6 10.9
86 4.8 8.9
Water Side Water Side
Volume Volume
Cubic In. Cubic Ft.
22.24 0.013
23.04 0.013
44.64 0.026
Table 3: Heating water pressure drops
(WPD) in feet of head
Unit Size Unit Size
60 HZ 50 HZ
006 -
009 006
012 009
015 012
018 015
Water Side
Volume
Gallons
0.096
0.100
0.193
EWT Ft.
GPM
F Pressure
68 1.8 3.3
68 2.3 4.6
68 3.3 10.7
68 3.6 12.4
68 4.8 10.3
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