571921-UTG-A-0410
2
Johnson Controls Unitary Products
All dimensions are in inches. They are subject to change with-
out notice. Certified dimensions will be provided upon request.
Physical and Electrical Data
MODEL
GHGD18
S41S3
GHGD24
S41S4
GHGD30
S41S4
GHGD36
S41S4
GHGD42
S41S4
GHGD48
S41S4
GHGD60
S41S4
Unit Supply Voltage
208-230V, 1
60Hz
Normal Voltage Range
1
187 to 252
Minimum
Circuit
Ampacity
11.9 11.2 14.1 19.7 20.9 25.6
34.9
Max. Overcurrent Device Amps
2
20 15 20 30 35
45
60
Min. Overcurrent Device Amps
3
15 15 15 20 25
30
35
Compressor
Type
Scroll Recip Recip Recip Recip Recip Scroll
Compressor Amps
Rated Load
9.0
8.3
10.6
14.7
15.7
19.4
26.9
Locked
Rotor
48.0 43.0 54.0 74.0 88.0
88.0
135.0
Crankcase
Heater
No Yes Yes Yes Yes
Yes
No
Fan Motor Amps
Rated Load
0.70
0.80
0.80
1.3
1.3
1.3
1.3
Fan
Diameter
Inches
24 24
24 24 24 24 24
Fan Motor
Rated
HP
1/10 1/8 1/8 1/4 1/4 1/4 1/4
Nominal
RPM
825 1075
1075 850 850 850 850
Nominal
CFM
2000 2900 3000
3800
3800
3600
3600
Coil
Face Area Sq. Ft.
15.7
18.3
21.0
23.6
23.6
23.6
23.6
Rows
Deep
1 1 1 1 1 2 2
Fin
/
Inches
22 22 22 22 22 18 18
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)
3/4
3/4
3/4
3/4
7/8
7/8
7/8
Unit Charge (Lbs. - Oz.)
4
6 - 6
9 - 6
9 - 0
10 - 0
9 - 10
14 - 12
13 - 13
Charge
Per
Foot,
Oz.
0.62 0.62 0.62 0.62 0.67 0.67 0.67
Operating
Weight
Lbs.
172 194 206 218 218 285 284
1. Rated in accordance with ARI Standard 110, 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. The Unit Charge is correct for the outdoor unit, matched indoor coil and 15 feet of refrigerant tubing. For tubing lengths other than 15 feet, add
or subtract the amount of refrigerant, using the difference in length multiplied by the per foot value.
B
A
C
Unit
Model
Dimensions
(Inches)
Refrigerant Connection
Service Valve Size
A
1
1. Including Fan Guard.
B
C
Liquid
Vapor
18
28
34
34
3/8”
3/4”
24
32
34
34
30
36
34
34
36
40
34
34
42
40
34
34
7/8”
48
40
34
34
60
40
34
34