5545023-YTG-A-0618
Johnson Controls Unitary Products 3
‡ Adapter fitting must be field installed for the required 1-1/8” line set.
‡ 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 YFK24B21S YFK36B21S YFK48B21S YFK60B21S
Unit Supply Voltage 208-230V, 1 60Hz
Normal Voltage Range
1
1. Rated in accordance with AHRI Standard 110-2012, utilization range “A”.
187 to 252
Minimum Circuit Ampacity 15.3 21.4 28.2 31.4
Max. Overcurrent Device Amps
2
2. Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.
25 35 45 50
Min. Overcurrent Device Amps
3
3. Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.
20 25 30 35
Compressor
Type 2-Stage Scroll 2-Stage Scroll 2-Stage Scroll 2-Stage Scroll
Rated Load 10.0 14.8 20.4 22.9
Locked Rotor 62.9 84.2 122.1 147.2
Crankcase Heater No No No No
Factory External Discharge Muffler No No No No
HS Kit Required with TXV
No No No No
Fan Diameter Inches 26 26 26 26
Fan Motor
Rated HP 1/3 1/3 1/3 1/3
Rated Load Amps 2.80 2.80 2.80 2.80
Nominal RPM 574 689 800 777
Nominal CFM 2650 3350 3925 3900
Coil
Face Area Sq. Ft. 26.40 31.20 31.20 31.20
Rows Deep 1 2 2 2
Fins / Inch 25 22 22 22
Liquid Line Set OD (Field Installed) 3/8 3/8 3/8 3/8
Vapor Line Set OD (Field Installed)
4
4. For applications with non-standard vapor line sizes, see the “Applications & Accessories” section of this Technical Guide.
3/4 3/4 7/8
1-1/8
‡
Unit Charge (Lbs. - Oz.)
5
5. 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 actual lineset length (not the equivalent length) multiplied by the per foot value.
8 - 8 13 - 6 15 - 1 16 - 11
Charge Per Foot, Oz. 0.62 0.62 0.67 0.75
Operating Weight Lbs. 195 265 295 295
%
$
$
&
DIMENSIONS
Unit
Model
Dimensions
(Inches)
Refrigerant Connection
Service Valve Size
A B C Liquid Vapor
YFK24B21S 40-1/4 38-1/4 34-1/2
3/8
3/4
YFK36B21S 46-1/2 38-1/4 34-1/2
YFK48B21S 46-1/2 38-1/4 34-1/2 7/8
YFK60B21S 46-1/2 38-1/4 34-1/2
7/8
‡
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