5545023-YTG-G-1121
Johnson Controls Ducted Systems 3
‡ The adapter fitting must be field installed for the required 1 1/8 in. refrigeration pip-
ing.
Notes:
• All dimensions are in inches and are subject to change without notice.
• The overall height is from the bottom of the base pan to the top of the fan
guard.
• The overall length and width include screw heads.
PHYSICAL AND ELECTRICAL DATA
Model YFK24B21S YFK36B21S YFK48B21S YFK60B21S
Unit supply voltage 208-230 V, 1 60 Hz
Normal voltage range
1
(V)
1. Rated in accordance with AHRI Standard 110-2012, utilization range A.
187 to 252
Minimum circuit ampacity (A) 15.3 21.4 28.2 31.4
Maximum overcurrent device (A)
2
2. Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.
25 35 45 50
Minimum overcurrent device (A)
3
3. Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.
20 25 30 35
Compressor
Type
4
4. Rotary compressor models are limited to an equivalent length of refrigeration piping of 100 ft with no exceptions.
2-stage scroll 2-stage scroll 2-stage scroll 2-stage scroll
Rated load (A) 10.0 14.8 20.4 22.9
Locked rotor (A) 62.9 84.2 122.1 147.2
Crankcase heater No No No No
Factory external discharge muffler No No No No
Hard start kit required with TXV
5
5. Refer to the Hard Start Kit Accessory Installation Manual for the hard start kit part number for each model. The hard start kit is a field installed accessory.
No No No No
Hard start kit part number (S1-2SA067*****) 10106 10106 10106 10106
Fan diameter (in.) 26 26 26 26
Fan motor
Rated HP 1/3 1/3 1/3 1/3
Rated load (A) 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 per inch 25 22 22 22
Liquid refrigeration piping outdoor (field installed) 3/8 3/8 3/8 3/8
Vapor refrigeration piping outdoor (field Installed)
6
6. For applications with non-standard vapor line sizes, refer to the APPLICATIONS AND ACCESSORIES section in the Technical Guide.
3/4 3/4 7/8
1 1/8
‡
Unit charge (lb - oz)
7
7. The unit charge is correct for the outdoor unit, smallest matched indoor unit, and 15 ft of refrigerant tubing. For tubing lengths other than 15 ft, add or subtract the
amount of refrigerant, using the difference in actual refrigeration piping length (not the equivalent length) multiplied by the per foot value.
‡ The adapter fitting must be field installed for the required 1 1/8 in. refrigeration piping.
8 - 8 13 - 6 15 - 1 16 - 11
Charge (oz/ft) 0.62 0.62 0.67 0.75
Operating weight (lb) 195 265 295 295
&
%
$
$
DIMENSIONS
Unit
model
Dimensions
(in.)
Refrigerant connection
service valve size (in.)
A B C Liquid Vapor
YFK24B21S 39 1/2 38 34 1/4
3/8
3/4
YFK36B21S 46 38 34 1/4
YFK48B21S 46 38 34 1/4 7/8
YFK60B21S 46 38 34 1/4
7/8
‡
To Next Page
Loading...
