5006089-LTG-A-0815
Johnson Controls Unitary Products
3
‡ Adapter fitting must be field installed for the required 1-1/8” line set.
All dimensions are in inches and are subject to change without notice.
Overall height is from bottom of base pan to top of fan guard.
Overall length and width include screw heads.
PHYSICAL AND ELECTRICAL DATA
MODEL
TW4B1821S
TW4B2421S
TW4B3021S
TW4B3621S
TW4B4221S
TW4B4821S
TW4B6021S
Unit Supply Voltage
208-230V, 1
60Hz
Normal Voltage Range
1
187 to 252
Minimum Circuit Ampacity
11.8
13.6
17.6
20.5
22.1
25.7
31.7
Max. Overcurrent Device Amps
2
20
20
30
35
35
45
50
Min. Overcurrent Device Amps
3
15
15
20
25
25
30
35
Compressor Type
Scroll
Scroll
Scroll
Scroll
Scroll
Scroll
Scroll
Compressor
Amps
Rated Load
9.0
10.2
13.4
15.4
16.6
19.5
24.3
Locked Rotor
56.3
61.6
72.5
83.9
109.0
130.0
144.2
Crankcase Heater
No
No
No
No
No
No
No
Factory External Discharge Muffler
No
No
No
No
No
No
No
HS Kit Required with TXV
4
No
No
No
No
No
No
No
Fan Diameter Inches
18
22
22
22
24
24
26
Fan Motor
Rated HP
1/12
1/8
1/8
1/4
1/4
1/4
1/4
Rated Load Amps
0.64
0.80
0.80
1.3
1.3
1.3
1.3
Nominal RPM
1000
1075
1075
850
850
850
850
Nominal CFM
1900
2875
2950
3275
3500
3500
4300
Coil
Face Area Sq. Ft.
12.37
13.83
13.83
17.37
18.74
18.74
23.40
Rows Deep
1
1
1
1
1
1
1
Fins / Inch
23
23
23
23
23
23
23
Liquid Line Set OD (Field Installed)
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Vapor Line Set OD (Field Installed)
5
3/4
3/4
3/4
3/4
7/8
7/8
1-1/8
‡
Unit Charge (Lbs. - Oz.)
6
3-6
3-12
3-15
4-10
4-15
4 - 15
5 - 12
Charge Per Foot, Oz.
0.62
0.62
0.62
0.62
0.67
0.67
0.75
Operating Weight Lbs.
130
135
140
155
200
200
205
1. Rated in accordance with AHRI Standard 110-2012, utilization range “A”.
2. Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.
3. Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.
4. See Hard Start Kit Accessory Installation Manual for Hard Start Kit part number for each model.
5. For applications with non-standard vapor line sizes, see the "Applications & Accessories" section of this Technical Guide.
6. The Unit Charge is correct for the outdoor unit, smallest matched indoor unit, and 15 feet of refrigerant tubing. For tubing lengths other than 15 feet, add or subtract
the amount of refrigerant, using the difference in actual lineset length (not equivalent length) multiplied by the per foot value.
A
C
B
A0339-001
DIMENSIONS
Unit
Model
Dimensions
(Inches)
Refrigerant Connection
Service Valve Size
A
B
C
Liquid
Vapor
TW4B1821S
33-1/4
24
24
3/8
3/4
TW4B2421S
30
29-1/4
29-1/4
TW4B3021S
30
29-1/4
29-1/4
TW4B3621S
36-1/4
29-1/4
29-1/4
TW4B4221S
33-1/4
35-1/4
31-3/4
7/8
TW4B4821S
33-1/4
35-1/4
31-3/4
TW4B6021S
36-1/4
38
34-1/4
7/8
‡