Carrier 24ACB7 Performance User Manual

4
LONG LINE APPLICATIONS
An application is considered Long Line, when the refrigerant level in the system requires the use of accessories to maintain acceptable
refrigerant management for systems reliability. See Accessory Usage Guideline table for required accessories. Defining a system as long line
depends on the liquid line diameter, actual length of the tubing, and vertical separation between the indoor and outdoor units.
For Air Conditioner systems, the chart below shows when an application is considered Long Line.
AC WITH PURONr REFRIGERANT LONG LINE DESCRIPTION ft (m)
Beyond these lengths, long line accessories are required
Liquid Line Size Units On Same Level Outdoor Below Indoor Outdoor Above Indoor
1/4
No accessories needed within allowed
lengths
No accessories needed within allowed
lengths
175 (53.3)
5/16 120 (36.6) 50 (15.2) vertical or 120 (36.6) total 120 (36.6)
3/8 80 (24.4) 35 (10.7) vertical or 80 24.4) total 80 (24.4)
Note: SeeLongLineGuidelinefordetails
VAPOR LINE SIZ I NG AND COOLING CAPACITY LOSS
Acceptable vapor line diameters provide adequate oil return to the compressor while avoiding excessive capacity loss. The suction line
diameters shown in the chart below are acceptable for AC systems with Puron refrigerant:
Vapor Line Sizing and Cooling Capacity Losses — Puronr Refrigerant 2--Stage Air Conditioner Applications
Unit
Nominal
Size (Btuh)
Maximum
Liquid
Line
Diameters
(In. OD)
Vapor Line
Diameters
(In.) OD
Cooling Capacity Loss (%)
Total Equivalent Line Length ft. (m)
26--- 50
(7.9---15.2)
51--- 80
(15.5---24.4)
81--- 100
(24.7---30.5)
101--- 125
(30.8---38.1)
126--- 150
(38.4---45.7)
151--- 175
(46.0---50.3)
176--- 200
(53.6---60.0)
201--- 225
(61.3---68.6)
226--- 250
(68.9---76.2)
024
2 --- S t a g e
Puron
AC
3/8
5/8 0 1 1 2 3 3 4 4 5
3/4 0 0 0 0 1 1 1 1 1
036
2 --- S t a g e
Puron
AC
3/8
5/8 1 2 4 5 6 7 9 10 11
3/4 0 0 1 1 2 2 3 3 4
7/8 0 0 0 0 1 1 1 1 2
048
2 --- S t a g e
Puron
AC
3/8
3/4 1 2 2 3 4 5 6 7 7
7/8 0 1 1 2 2 2 3 3 3
1 --- 1 / 8 0 0 — — — — — — —
060
2 --- S t a g e
Puron
AC
3/8
3/4 1 2 4 5 6 7 9 10 11
7/8 0 1 2 2 3 4 4 5 5
1 --- 1 / 8 0 0 0 1 1 1 1 1 1
Applications in this area may be long line and may have height restrictions. See the Residential Piping and Long Line Guideline.
— Applications in this area are not recommended due to insufficient oil return
PHYSICAL DATA
UNIT SIZE SERIES 24--- 31 36--- 31 48 --- 31 60--- 30
Operating Weight lb (kg) 183 (83.0) 216 (98.0) 277 (125.6) 316 (143)
Shipping Weight lb (kg) 222 (100.7) 255 (115.7) 318 (144.2) 373 (169)
Compressor Type Ultratech 2---Stage Scroll
REFRIGERANT Puron (R---410A)
Control TXV (Puron Hard Shutoff)
Charge lb (kg) 6.64 (3.01) 9.26 (4.20) 12.94 (5.87) 15.13 (6.86)
COND FAN Propeller Type, Direct Drive
Air Discharge Vertical
Air Qty (CFM) 2481 3068 4700 4450
Motor HP 1/12 1/10 1/4 1/4
Motor RPM 800 825 825 800
COND COIL
Face Area (Sq ft) 19.38 19.38 25.12 30.18
Fins per In. 25 20 20 20
Rows 1 2 2 2
Circuits 5 7 7 8
VALVECONNECT.(In.ID)
Vapor 3/4 7/8 7/8 7/8
Liquid 3/8
REFRIGERANT TUBES (In. OD)
Rated Vapor* 3/4 7/8 1 --- 1 / 8 1 --- 1 / 8
Liquid 3/8
*Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset.
24ACB7

Carrier 24ACB7 Performance Specifications

General

Brand	Carrier
Model	24ACB7 Performance
Category	Air Conditioner
Language	English