Carrier Ecologic 30GX080-265 Controls, Start-Up, Operation, Service, And Troubleshooting page 96

CHECK PRESSURE DROP ACROSS THE COOLER:
ENTERING COOLER:
LEAVING COOLER:
(LEAVING − ENTERING) × 2.31 FT OF H
(LEAVING − ENTERING) × 0.334 M OF H
PLOT COOLER PRESSURE DROP ON PERFORMANCE DATA CHART (IN PRODUCT DATA LITERATURE) TO
DETERMINE TOTAL GALLONS/MINUTE (GPM) OR LITERS PER SECOND (L/S) AND FIND UNIT'S MINIMUM
FLOW RATE.
TOTAL GPM (L/S):
GPM/NOMINAL TON (L/S PER TON) =
TOTAL GPM (L/S) IS GREATER THAN UNIT'S MINIMUM FLOW RATE
TOTAL GPM (L/S) MEETS JOB SPECIFIED REQUIREMENT OF
COOLER HEATER FUSE INSTALLED, AND HEATERS ARE ACTIVE (IF USED)
CHECK CONDENSER WATER LOOP:
PROPER LOOP CORROSION INHIBITOR INCLUDED
GALLONS (LITERS) OF
INLET PIPING TO CONDENSER INCLUDES A 40 MESH STRAINER
CHECK PRESSURE DROP ACROSS THE CONDENSER (30HXC ONLY):
ENTERING CONDENSER:
LEAVING CONDENSER:
(LEAVING − ENTERING) × 2.31 FT OF H
(LEAVING − ENTERING) × 0.334 M OF H
PLOT CONDENSER PRESSURE DROP ON PERFORMANCE DATA CHART (IN PRODUCT DATA LITERATURE) TO
DETERMINE TOTAL GALLONS/MINUTE (GPM) OR LITERS PER SECOND (L/S) AND FIND UNIT'S MINIMUM
FLOW RATE.
TOTAL GPM (L/S):
GPM/NOMINAL TON (L/S PER TON) =
TOTAL CONDENSER GPM (L/S) IS GREATER THAN UNIT'S MINIMUM FLOW RATE
TOTAL GPM MEETS JOB SPECIFIED REQUIREMENT OF
PSIG (kPa)
PSIG (kPa)
O/PSIG =
2
O/kPa =
2
PSIG (kPa)
PSIG (kPa)
O =
2
O/kPa =
2
CL-4
FT OF H O
2
M OF H O
2
GPM (L/S)
FT OF H O
2
M OF H O
2
GPM (L/S)