Specifications

PRODUCT SPECIFICATIONS Split System Air Conditioner: R4A3
4 421 65 6002 09
Specifications subject to change without notice.
PHYSICAL DATA
Model Size 18 24 30 36 42 48 60
Nominal Cooling Capacity (BTU/hr) 18,000 24,000 30,000 36,000 42,000 48,000 60,000
Nominal SEER 13.0 13.0 13.0 13.0 13.0 13.0 13.0
PSC Fan Motor HP 1/12 1/10 1/10 1/5 1/5 1/4 1/4
Fan RPM (single speed) 1100 1100 1100 1100 1100 1100 1100
Fan CFM 1700 2218 2169 3167 3100 3365 3400
Coil Face Area ft
2
(m
2
)
8.40
(.78)
8.40
(.78)
11.49
(1.07)
12.93
(1.20)
17.25
(1.60)
19.40
(1.80)
15.09
(1.40)
Coil Rows - fins per inch 1- 20 1- 25 1- 25 1- 25 1- 25 1- 25 2- 20
Circuits 3 3 3 5 4 5 6
Liquid Line Connection Size in. (mm) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10)
Vapor Line Connection Size in. (mm) 3/4 (19) 3/4 (19) 3/4 (19) 7/8 (22) 7/8 (22) 7/8 (22) 7/8 (22)
Recommended Line Set
Liquid Tube Diameter in. (mm)
3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10)
Recommended Line Set
Vapor T ube Diameter in. (mm)
3/4 (19)* 3/4 (19) 3/4 (19)* 7/8 (22)* 7/8 (22)* 7/8 (22)*
1- 1/8
(29)*
* Recommended Vapor Tube Line size is for standard installations. These recommendations may not apply to “Long
Line” installations. Consult the Long Line Application Guideline document before purchasing/installing line sets.
Factory Charge R- 410A lbs. (kg)
3.15
(1.43)
3.15
(1.43)
4.62
(2.10)
5.42
(2.46)
6.07
(2.75)
7.10
(3.22)
8.00
(3.63)
Required Subcooling ° F(° C) 14 (7.8) 10 (5.6) 10 (5.6) 11 (6.1) 10 (5.6) 13 (7.2) 10 (5.6)
ELECTRICAL DATA (208/230- 1- 60, voltage range 197V - 253V)
Model Size 18 24 30 36 42 48 60
Minimum Circuit Ampacity -
MCA (amps)
11.8 14.3 16.6 18.1 23.5 24.3 34.4
Maximum OverCurrent
Protective device - MOCP (amps)
20 25 25 30 40 40 50
Compressor RLA (Rated Load Amps)
LRA (Locked Rotor Amps)
9.0
47.5
10.9
62.9
12.8
67.8
13.6
79.0
17.9
112.0
18.3
93.0
26.4
134.0
Fan Motor FLA (Full Load Amps) 0.5 0.7 0.6 1.1 1.1 1.4 1.4
Check the piston size shipped with the indoor unit to see if it matches the required indoor piston size. If it does not match,
replace the indoor piston with the correct size per the table below.
Outdoor Unit Connected to a Factory Approved Indoor Unit
(with FEM4P* Fan Coil)
Outdoor Unit Size - Series
18- H 24- H 30- H 36- H 42- H 48- H
Piston Size by Outdoor 49 55 61 - 73 78
NOTE: Pistons shipped with outdoor units are only qualified and approved with the above listed fan coils. The piston
included with the FMA4P* and FM(C,U)4P* fan coils are unique to those products and CANNOT be replaced with the
piston shipped with the outdoor unit. Refer to the AHRI Directory to check if your combination can use a piston or requires
an accessory TXV.