APC IN ROW RD ACRD101 Specifications download pdf (Page 34)

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

Cross sectional area for 1/2 inch OD ACR pipe is 0.0010554 ft

R410A in 1/2 OD liquid line - Area x Length in ft x density - 0.0010554 (ft

) x L (ft) x 61.0 (lbm/ft

)

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

R410A in 5/8 OD liquid line - Area x Length in ft x density - 0.001619 (ft

) x L (ft) x 61.0 (lbm/ft

)

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.

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APC IN ROW RD ACRD101 Specifications Page 34

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