Carrier 24ABA4 - Physical Data; Vapor Line Sizing and Cooling Capacity Loss

3
PHYSICAL DATA
UNIT SIZE SERIES 18---30 24---30 30---30 36---30 42---30 48---30 60---30
Operating Weight (lb) 171 185 188 191 237 239 295
Shipping Weight (lb) 199 214 217 225 272 272 330
Compressor Type Scroll
REFRIGERANT Puron® (R---410A)
Control TXV (Puron® Hard Shutoff)
Charge (lb) 5.7 7.25 7.1 7.25 10.9 11 13.9
COND FAN Propeller Type, Direct Drive
Air Discharge Vertical
Air Qty (CFM) 2235 2615 3170 3800 3800 3800 4050
Motor HP 1/12 1/10 1/5 1/5 1/5 1/5 1/5
Motor RPM 800 1100 1100 800 800 800 800
COND COIL
Face Area (Sq ft) 19.40 23.71 23.71 22.63 30.18 20.12 30.18
Fins per In. 25 25 25 25 25 20 20
Rows 1 1 1 1 1 2 2
Circuits 3 4 4 5 7 7 7
VALVECONNECT.(In.ID)
Vapor 5/8 5/8 3/4 3/4 7/8 7/8 7/8
Liquid 3/8 3/8 3/8 3/8 3/8 3/8 3/8
REFRIGERANT TUBES* (In. OD)
Vapor (0---50 Ft Tube Length) 5/8 3/4 7/8 1 --- 1 / 8
Vapor(MaxDiameterfor
long ---Line applications
3/4 7/8 1 --- 1 / 8 1 --- 1 / 8
Liquid (0--- 50 Ft Tube Length) 3/8”
Liquid (For Long---Line
applications)
3/8”
* For tubing sets between 80 and 200 ft. horizontal or 20 ft. vertical differential, consult the Longline Guideline.
Note: See unit Installation Instruction for proper installation.
VAPOR LINE SIZING AND COOLING CAPACITY LOSS
PURON 1--STAGE AIR CONDITIONER APPLICATIONS
LONG LINE APPLICATION: An application is considered
”Long line” when the total equivalent tubing length exceeds 80 ft
or when there is more than 20 Ft vertical separation between
indoor and outdoor units. These applications require additional
accessories and system modifications for reliable system
operation. The maximum allowable total equivalent length is
250Ft. The maximum vertical separation is 200 Ft when outdoor
unit is above indoor unit, and 50 Ft when the outdoor unit is
below the indoor unit. Refer to Accessory Usage Guideline below
for required accessories. See Long--Line Application Guideline
for required piping and system modifications. Also, refer to the
table below for the acceptable vapor tube diameters based on the
total length to minimize the cooling capacity loss.
Unit Nominal Size
(Btuh)
Acceptable
Vapor Line
Diameters
(In. OD)
Cooling Capacity Loss (%)
Total Equivalent Line Length (ft)
Standard Application Long Line Application Requires Accessories
25 50 80 80+ 100 125 150 175 200 225 250
18000
1StagePuronAC
1/2 1 2 4 4 5 6 7 8 10 11 12
5/8 0 1 1 1 2 2 2 3 3 3 4
24000
1StagePuronAC
5/8 1 1 2 2 3 3 4 4 5 6 6
3/4 0 1 1 1 1 1 1 2 2 2 2
7/8 0 0 0 0 1 1 1 1 1 1 1
30000
1StagePuronAC
5/8 1 2 3 3 4 5 6 7 8 9 9
3/4 0 1 1 1 1 2 2 3 3 3 4
7/8 0 0 1 1 1 1 1 1 1 2 2
36000
1StagePuronAC
5/8 1 3 4 4 5 7 8 9 11 12 13
3/4 1 1 2 2 2 3 3 3 4 4 5
7/8 0 1 1 1 1 1 2 2 2 2 3
42000
1StagePuronAC
3/4 1 1 2 2 3 3 4 5 5 6 7
7/8 0 1 1 1 1 2 2 2 3 3 3
11/8 0 0 0 0 0 1 1 1 1 1 1
48000
1StagePuronAC
3/4 1 2 3 3 3 4 5 6 7 8 8
7/8 0 1 1 1 2 2 3 3 3 4 4
11/8 0 0 0 0 1 1 1 1 1 1 1
60000
1StagePuronAC
3/4 1 3 4 4 5 6 8 9 10 11 13
7/8 1 1 2 2 3 3 4 4 5 6 6
11/8 0 0 1 1 1 1 1 1 1 2 2
Standard Length = 80 Ft or less total equivalvent len gth
Applications in this area are long line. Accessories are required as shown recommended on Long Line Application Guidelines
Applications in this area may have height restrictions that limit allowable total equivalent length, when outdoor unit is below indoor unit See Long Line Application
Guidelines
24ABA4