Trane GECA -006 - Water Pressure Drop and Volume Data

GECA-SVX01B-EN 33
Sequence of
Operation
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
60 HZ
Unit Size
50 HZ
EWT
F
GPM
Ft.
Pressure
006 - 86 1.8 2.6
009 006 86 2.3 4.1
012 009 86 3.3 9.4
015 012 86 3.6 10.9
018 015 86 4.8 8.9
Water Volume
Table 4 is provided for use in calculating glycol requirements for the unit.
Table 4: Water volume
Unit Size
60 HZ
Unit Size
50 HZ
Water Side
Volume
Cubic In.
Water Side
Volume
Cubic Ft.
Water Side
Volume
Gallons
006-009 006 22.24 0.013 0.096
012-15 009-12 23.04 0.013 0.100
018 015 44.64 0.026 0.193
Table 3: Heating water pressure drops
(WPD) in feet of head
Unit Size
60 HZ
Unit Size
50 HZ
EWT
F
GPM
Ft.
Pressure
006 - 68 1.8 3.3
009 006 68 2.3 4.6
012 009 68 3.3 10.7
015 012 68 3.6 12.4
018 015 68 4.8 10.3