Technical Guide

556454-YTG-D-0414
2 Johnson Controls Unitary Products
.
All dimensions are in inches and are subject to change without notice.
Overall height is from bottom of mounting feet to top of unit.
Overall length and width include mounting feet and screw heads.
Physical and Electrical Data
MODEL
TCHD18
S41S3
TCHD24
S41S3
TCHD30
S41S3
TCHD36
S41S3
TCHD48
S41S3
TCHD60
S41S3
Unit Supply Voltage 208-230V, 1 60Hz
Normal Voltage Range
1
187 to 252
Minimum Circuit Ampacity 11.8 17.4 17.5 23.1 27.1 34.3
Max. Overcurrent Device Amps
2
20 30 30 40 45 60
Min. Overcurrent Device Amps
3
15 20 20 25 30 35
Compressor Amps
Type Scroll Scroll Scroll Scroll Scroll Scroll
Rated Load 9.0 13.5 12.8 17.3 20.5 26.3
Locked Rotor 48.0 58.3 64.0 96.7 115.0 134.0
Crankcase Heater Yes Yes Yes Yes Yes Yes
Factory External Discharge Muffler No No No No No No
Factory External Check Valve NoNoNoNoNoNo
HS Kit Required with TXV
4
No No No No No No
Fan Diameter Inches 17.5 17.5 23 23 23 23
Fan Motor
Rated HP 1/8 1/8 1/4 1/4 1/4 1/4
Rated Load Amps 0.6 0.6 1.5 1.5 1.5 1.5
Nominal RPM 840 840 850 850 850 850
Nominal CFM 1150 1150 3200 3200 3050 3050
Coil
Face Area Sq. Ft. 5.76 5.76 11.96 11.96 13.96 13.96
Rows Deep 1 1 1 1 1 1
Fins / Inch 23 23 23 23 23 23
Refrigerant Lines
5
Max. Length 200 200 200 200 200 200
Max. Lift 65 65 65 65 65 65
Max. Drop 150 150 150 150 150 150
Liquid Line Set OD (Field Installed) 3/8 3/8 3/8 3/8 3/8 3/8
Vapor Line Set OD (Field Installed) 3/4 3/4 3/4 3/4 7/8 7/8
Unit Charge (Lbs. - Oz.)
6
2 - 10 3 - 5 4 - 0 4 - 8 5 - 5 5 - 6
Charge Per Foot, Oz. 0.62 0.62 0.62 0.62 0.67 0.67
Operating Weight Lbs. 130 135 195 215 240 250
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. When more than 50 feet of interconnecting tubing and more than 30 feet of vertical lift is used, consult the Application Data (part number 247077). For long-line
applications, interconnecting lines over 100 feet must be installed with liquid line solenoid.
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 sub-
tract the amount of refrigerant, using the difference in length multiplied by the per foot value.
B
C
A
Unit
Model
Dimensions
(Inches)
Refrigerant Connection
Service Valve Size
A B C Liquid Vapor
18 25-1/4 17-1/2 37-1/4
3/8
3/4
24 25-1/4 17-1/2 37-1/4
30 37-1/4 20 45
36 37-1/4 20 45
48 43-1/4 20 45
7/8
60 43-1/4 20 45