Specifications

InRow Air Cooled RD Installation26
Charging Table
Condenser Model Selected
Ambient
Temperature
Condenser
Summer
Charge
(lb)
Condenser Flooded Charge (lb) for Different
Minimum Outdoor Ambient Temperatures
4° C
(40
° F)
-7
° C
(20
° F)
-18
°
C (0
° F)
-29
° C
(-20
° F)
-40
° C
(-40
° F)
FCB5 FSC
95° F 4.9 12.1 12.9 13.3 13.6 13.9
FCB5 FSC
105° F 4.9 12.1 12.9 13.3 13.6 13.9
FCB8 FSC
115° F 8.5 21.1 22.4 23.1 23.6 24.1
KH1150.ADV FSC
35° C 3 6.8 7.2 7.4 7.6 7.7
KH1150.ADV FSC
40° C 3 6.8 7.2 7.4 7.6 7.7
KH1250.ADV FSC
46° C 5 13.5 14.4 14.8 15.2 15.5
Total Charge - RD Unit Charge + Condenser Summer Charge + Condenser Flooded Charge (for minimum
possible ambient temperature) + Liquid R410A in liquid pipe
RD Unit Charge is 1.6 kg (3.5 lbs)
Density of liquid R410a at 105
° F 260 psig is 61.0 lbm/ft
3
Cross sectional area for 1/2 inch OD ACR pipe is 0.0010554 ft
2
R410A in 1/2 OD liquid line - Area x Length in ft x density - 0.0010554 (ft
2
) x L (ft) x 61.0 (lbm/ft
3
)
Liquid line charge for 1/2 inch OD ACR copper tube is 0.095 kg/m (0.0644 lb/ft)
Cross sectional area for 5/8 inch OD ACR pipe is 0.001619 ft
2
R410A in 5/8 OD liquid line - Area x Length in ft x density - 0.001619 (ft
2
) x L (ft) x 61.0 (lbm/ft
3
)
Liquid line charge for 5/8 inch OD ACR copper tube is 0.146 kg/m (0.099 lb/ft)
Example: Calculate total R410A charge for FCB5, 25 ft long 1/2 in OD liquid piping and minimum outdoor
design temperature is 20
° F.
Total R410A charge = 3.5 + 4.9 + 13.6 + (25 (0.0644)) = 23.6 lb.