Room AirRoom Air
Room Air
Room AirRoom Air
ConditioningConditioning
Conditioning
ConditioningConditioning
SERVICESERVICE
SERVICE
SERVICESERVICE
ManualManual
Manual
ManualManual
RACServMn (01/02)
TT
able of Contentsable of Contents
T
able of Contents
TT
able of Contentsable of Contents
Page
Typical Unit Components................................ 3
Introduction ..................................................... 3
Unit Identification ............................................ 4
Unit Specifications .......................................... 5
Unit Performance ........................................... 7-20
Refrigeration Sequence of Operation ............. 21
Electrical Rating Tables .................................. 22
Compressor .................................................... 23
Thermal Overload (External) .......................... 23
Thermal Overload (Internal) ............................ 24
Fan Motor ....................................................... 24
System Switches/Controls .............................. 25-33
Thermostats (Indoor) ...................................... 34-35
Thermostats (Defrost) .................................... 35-36
Resistor (Heat Anticipator) .............................. 36
Capacitor, Run................................................ 36-37
Check Valve ................................................... 37
Heat Pump Reversing Valve........................... 37-38
Solenoid Coil (Heat Pump Models) ................. 38
Valve, Drain Pan ............................................. 38
Heating Element ............................................. 39
Sealed Refrigeration Repairs .......................... 39-40
Refrigerant Charging ...................................... 40-41
Undercharged Refrigerant Systems ............... 41-42
Overcharged Refrigerant Systems ................. 42
Restricted Refrigerant System ........................ 43
Routine Maintenance ...................................... 44
Troubleshooting .............................................. 45-55
Wiring Diagrams
"RS", "RM",...................... 618-200-17 ..... 56
"SQ" ................................ 617-581-09 ..... 57
"KQ" ................................ 617-581-04 ..... 58
"YQ" ................................ 617-581-05 ..... 59
"SC"................................. 614-406-00 ..... 60
"SS", "SM" ....................... 618-200-03 ..... 61
"SL" ................................. 618-200-00 ..... 62
"KS", "KM", "KL" .............. 618-200-00 ..... 63
"ES", "EM", "EL", "EK" .....618-200-01 ..... 64
"YS13", "YM", "YL" .......... 618-200-02 ..... 65
"YS09" .............................619-142-17 ..... 66
Testing XQ and QME Boards ......................... 67
Quick Reference Guide – QuietMaster ........... 68
Quick Reference Guide – XStar ..................... 69
2
Reversing Valve
(if so equipped)
TT
ypical Unit Componentsypical Unit Components
T
ypical Unit Components
TT
ypical Unit Componentsypical Unit Components
Fresh Air
Capillary Tube
Compressor
Liquid Filter Driers
Condenser Coil
Front Cover
System Switches
Evaporator Coil
Return Air Grille/
Filter
Blower Wheel
Blower Motor
INTRODUCTIONINTRODUCTION
INTRODUCTION
INTRODUCTIONINTRODUCTION
This service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning
system component.
This service manual was written to assist the professional RAC service technician to quickly and accurately diagnose and
repair malfunctions.
This manual will deal with subjects in a general nature. (i.e. All text will not pertain to all models).
Basepan
Condenser Fan Blade
Discharge Air
Outdoor Grille
Sleeve
IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so
you can be certain of a proper diagnosis and repair. (See Unit Identification.)
The information contained in this manual is intended for use by a qualified service technician
who is familiar with the safety procedures required in installation and repair, and who is
equipped with the proper tools and test instruments.
Installation or repairs made by unqualified persons can result in hazards subjecting the
unqualified person making such repairs to the risk of injury or electrical shock which can
be serious or even fatal not only to them, but also to persons being served by the equipment.
If you install or perform service on equipment, you must assume responsibility for any
bodily injury or property damage which may result to you or others. Friedrich Air Conditioning
Company will not be responsible for any injury or property damage arising from improper
installation, service, and/or service procedures.
3
UNIT IDENTIFICAUNIT IDENTIFICA
UNIT IDENTIFICA
UNIT IDENTIFICAUNIT IDENTIFICA
Model Number Code
SQ06J 1 0 A
TIONTION
TION
TIONTION
1st Digit – Function
S = Straight Cool, Value Series
C = Straight Cool, Budget
Series
Y = Heat Pump
E = Electric Heat
K = Straight Cool, Challenger
Series
W = Thru-the Wall, WallMaster
Series
2nd Digit
C = Casement
P = PowerMiser "Portable"
Q = Q-Star
M = Medium Chassis
L = Large Chassis
W = Built -In
H = HazardGard
8th Digit – Engineering
Major change
7th Digit – Options
0 = Straight Cool & Heat Pump Models
1 = 1 KW Heat Strip, Normal
3 = 3 KW Heat Strip, Normal
4 = 4 KW Heat Strip, Normal
5 = 5 KW Heat Strip, Normal
8 = 8 KW Heat Strip, Normal
6th Digit – Voltage
1 = 115 Volts
2 = 230 Volts
3 = 230-208 Volts
5th Digit
Alphabetical Modifier
3rd and 4th Digit Approximate BTU/HR
(Cooling)
Heating BTU/Hr capacity listed in
the Specification/Performance
Data Section
RAC Serial Number Identification Guide
Serial Number
Decade Manufactured
L=0 C=3 F=6 J=9
A=1 D=4 G=7
B=2 E=5 H=8
Year Manufactured
A=1 D=4 G=7 K=0
B=2 E=5 H=8
C=3 F=6 J=9
Month Manufactured
A=Jan D=Apr G=Jul K=Oct
B=Feb E=May H=Aug L=Nov
C=Mar F=Jun J=Sep M=Dec
L A G S 00001
Production Run Number
PRODUCT LINE
S=RAC
P=PTAC
E=EAC
V=VPAK
H=Split
4
Room Air Conditioner Specifications ENERGY STAR® Compliant
Model
®
XSTAR
✭
XQ05J10
✭
XQ06J10
XQ07J10
XQ08J10
QSTAR
✭
✭
QSTAR
®
SQ05J10B
SQ06J10B
SQ08J10B
®
KQ05J10B
KQ06J10B
KQ058J10B
QuietMaster® Electronic
✭
SS08J10R
✭
SS09J10B
✭
SS10J10R
✭
SS12J10AR
✭
SS14J10R
SS12J30B
SS16J30
SM19J30R
SM12J30B
12000/12000
15600/15300
13900/19000
21000/20500
QuietMaster® Deluxe
✭
RS10J10
✭
RS12J10A
RS14J10
RS16J30
RS19J30
QuietMaster
®
15600/15300
19300/19000
KS10J10
KS12J10
KS14J10
KS12J30A
KS18J30B
KM21J30
KL25J30A
12500/12500
17600/17300
20500/20500
25000/25000
QuietMaster® Heavy Duty
✭
SL24J30A
SL28J30A
SL33J30
24500/24500
28000/27500
33000/32500
TwinTemp® Heat Pump
YQ06J10A**
Y309J10**
YS13J33
YM18J34A
YL24J35A
13000/13000
17500/17500
24000/23800
TwinTemp® Electric Heat
ES12J33
ES12J33A
ES16J33
ES19J34
EK18J34B
EL24J35A
EL33J35
12000/12000
12500/12500
15600/15300
19300/19000
17600/17300
24500/24500
33000/33000
Casement
SC06H10D
Cooling
Capacity
BTU/Hr.
5400
6200
7100
8250
5400
6200
8250
5000
6000
8250
8200
9200
10200
11750
14000
1000
11700
14200
1000
11500
14000
6200
9000
6200
Heating
Capacity
BTU/H
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
5300
8300
12400/12300
16500/16300
23000/22800
10700/8900
10700/8900
10700/8900
13000/10600
13000/10600
17300/14300
17300/14300
–
Volts
Rated
115
115
115
115
115
115
115
115
115
115
115
115
115
115
115
230/208
230/208
230/208
230/208
115
115
115
230/208
230/208
115
115
115
230/208
230/208
230/208
230/208
230/208
230/208
230/208
115
115
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
115
Cooling
Amps
4.6
5.1
6.5
4.5
4.6
5.1
7.5
4.7
5.4
7.5
6.7
7.2
7.5
9.8
12.0
5.5/5.7
7.2/7.7
8.9/9.6
10.6/11.4
8.3
9.8
12.0
7.2/7.7
8.9/9.6
9.1
10.5
12.0
5.8/6.2
8.2/8.7
1.03/11.4
12.3/13.6
11.9/13.0
14.0/15.5
17.0/18.0
5.7
7.2
6.0/6.5
8.3/9.0
12.0/13.0
5.5/5.7
538/6.2
7.2/7.7
8.9/9.6
8.2/8.7
11.9/13.0
17.0/18.0
6.7
Cooling
1143/1091
1598/1560
1972/1926
2333/2278
1598/1560
1972/1926
1250/1205
1820/1760
2278/2278
2278/2278
2580/2605
3110/3090
3665/3610
1327/1327
1862/1862
2665/2645
1145/1090
1250/1250
1598/1560
1972/1926
1820/1760
2580/2605
3665/3610
Watts
507
564
689
842
507
564
842
516
592
842
745
800
872
1068
1308
909
1068
1357
971
1150
1386
620
785
715
Heating
Amps
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
6.2
6.7
6.0/6.5
7.6/8.3
10.4/11.5
16.0/14.7
16.0/14.7
16.0/14.7
19.5/17.0
19.5/17.0
24.0/22.4
24.0/22.4
Heating
Watts
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
615
760
1340/1300
1720/1700
2350/2340
3500/2900
3500/2900
3500/2900
4200/3500
4200/3500
5500/4650
5500/4650
Energy
Efficiency
Ratio
E E R
10.7
11.0
10.3
9.8
10.7
11.0
9.8
9.7
10.1
9.8
11.0
11.5
11.7
11.0
10.7
10.5/11.0
9.8/9.8
9.8/9.9
9.0/9.0
11.0
11.0
10.5
9.8/9.8
9.8/9.8
10.3
10.0
10.1
10.0/10.0
9.7/9.8
9.0/9.0
9.0/9.0
9.5/9.4
9.0/8.9
9.0/9.0
10.0
11.5
9.8/9.8
9.4/9.4
9.0/9.0
10.5/11.0
10.0/10.0
9.8/9.8
9.8/9.9
9.7/9.8
9.5/9.4
9.0/9.0
8.7
Moisture
Removal
Pints/Hr.
1.5
2.0
2.5
2.5
1.5
2.0
2.5
1.5
2.0
2.5
2.0
1.7
2.6
3.5
3.7
3.5
5.0
5.7
7.0
2.6
3.5
3.7
5.0
5.7
2.8
3.5
3.7
3.5
5.5
7.0
7.7
7.7
8.8
11.0
2.0
1.7
3.5
5.2
7.0
3.5
3.5
5.0
5.7
5.5
7.7
11.0
2.0
Room
Side Air
Circulation
CFM
160
160
145
165
160
160
165
165
165
165
310
300
300
325
400
330
325
330
440
300
325
400
330
425
325
325
400
325
440
440
560
560
600
700
140
300
325
425
600
325
325
330
425
440
560
700
140
Sleeve*
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
S
S
S
S
M
S
S
M
M
S
S
M
S
M
S
S
M
S
M
M
L
L
L
L
Q
S
S
M
L
S
S
S
M
M
L
L
SC
Net
Weight
Lbs.
70
77
80
80
70
77
80
76
76
79
108
113
115
114
128
114
119
163
154
115
114
128
119
163
108
111
128
106
161
154
192
192
201
216
78
113
117
166
198
111
108
116
160
158
191
215
70
✭ Sleeve dimensions are listed on the following page.
✭✭ These heat pumps have no supplemental electric and should not be operated below 37F.
As an ENERGY STAR partner, Friedrich Air Conditioning co. has determined that the selected ENERGY STA R (M) models meet the ENERGY STA R
requirements for energy efficiency.
5
WallMaster® Thru-the-wall Specifications
Heating
Capacity
BTU/H
–
–
–
–
–
–
8200/8200
10800/10500
11000/9100
11000/9100
11000/9100
Volts
Rated
115
115
115
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
Cooling
Amps
6.7
9.0
11.5
4.5/4.9
5.7/6.3
6.3/6.8
4.5/4.8
5.8/6.2
4.5/4.9
5.7/6.3
6.3/6.8
Cooling
Watts
735
980
1280
980/980
1280/1255
1435/1415
1000/980
1315/1280
980/980
1280/1255
1435/1415
Heating
Amps
–
–
–
–
–
–
4.1/4.2
5.4/5.7
16.0/14.7
16.0/14.7
16.0/14.7
WS07A10D
WS09A10D
WS12A10D
WS09A30D
WS12A30D
WS13A30D
WY09A33D
WY12A33E
WE09A33D
WE12A33D
WE13A33D
Cooling
Capacity
BTU/Hr.Model
7000
9000
11500
9000/8800
11500/11300
12500/12300
9000/8800
11300/10900
9000/8800
11500/11300
12500/12300
Heating
Watts
–
–
–
–
–
–
870/840
1200/1165
3550/2950
3550/2950
3550/2950
Energy
Efficiency
Ratio
E E R
8.5
9.2
9.0
9.2/9.0
9.0/9.0
8.7/8.7
9.0/9.0
8.6/8.5
9.2/9.0
9.0/9.0
8.7/8.7
Moisture
Removal
Pints/Hr.
1.4
2.0
2.9
2.1
2.9
4.0
2.1
2.9
2.1
2.9
4.0
Room
Side
Air
Circulation
CFM
260
260
290
260
290
250
270
290
260
290
250
Sleeve*
WSC
WSC
WSC
WSC
WSC
WSC
WSC
WSC
WSC
WSC
WSC
Net
Weight
Lbs.
93
103
112
101
109
119
107
116
103
111
121
Installation Information / Sleeve Dimensions
Depth Depth Minimum Minimum Thru-the-wall
with Hood to Extension Extension Window Width Finished Hole
Sleeve Height Width Front Louvers Into Room Outside Minimum Maximum Height Width
Q 14" 19 3/4" 21 3/8" 8 1/2" 5 1/2" 10 3/4" 26" 42" 14 3/4" 20"
S 15 15/16" 25 15/16" 27 3/8" 9 3/4" 3 1/16" 16 15/16" 27 7/8" 42" 16 3/16" 26 3/16"
M 17 15/16" 25 15/16" 27 3/8" 8 3/4" 3 1/16" 16 15/16" 27 7/8" 42" 18 3/8" 26 3/16"
L 20 3/16" 28" 33 5/8" 16 1/2" 3 3/16" 18 15/16" 29 7/8" 42" 20 3/8" 28 1/4
SC 10 13/16" 14 11/16" 27" 9 7/8" 2 1/2" 15 1/2" 14 3/4" 17 7/8" 11 1/8" 14 15/16"
WSC 16 3/4" 27"
* Maximum Height
23" – 7 1/2" 9/16" – – 17 1/4" 27 1/4"
6
Unit Performance Sheets
SPECIFICATIONS SQ05J10A-1 SQO6J10A-1 SQO7J10A-1 SQO8J10AB-1
BTUH (Cooling) 5400 6300 7100 8000
E.E.R. (Cooling) 11.0 10.8 10.3 10.0
Volts 115 115 115 115
Amperes (Cooling) 4.4 5.2 6.5 7.5
Total Watts (Cooling) 490 585 690 800
Hertz 60 60 60 60
Fuse / Breaker Size 15 15 15 15
Fan RPM 1115 1115 1115 1115
Evaporator Air CFM 160 160 140 165
Exhaust Air CFM Yes Yes Yes Yes
Dehumidification Pts / Hr. 1.5 2.0 2.5 2.5
Width 19¾ 19¾ 19¾ 19¾
Height 14" 14" 14" 14"
Depth 213/
8
Minimum Ext. into Room 5½ 5½ 5½ 5½
Minimum Ext. to Outside 10¾ 10¾ 10¾ 10¾
Net Weight (Lbs.) 76 78 79 82
Shipping Weight (Lbs.) 81 83 84 87
213/
8
213/
8
213/
8
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
**SQ05J10A-1 55.45 24.55 76.5 281 4.4 34.0 16.0 R-22 9.8
**SQ06J10A-1 51.45 28.55 75.5 262 5.2 35.0 15.7 R-22 9.8
**SQ07J10A-1 50.41 29.59 75.5 277 6.5 40.0 24.0 R-22 9.8
**SQ08J10AB-1 50.50 29.50 74.5 262 7.5 39.2 19.5 R-22 9.8
* Rating Conditions:80°F Room Air Temperature and 50% Relative Humidity with
** Use Sunisco 4GDID Refrigerant Oil or Atmos 60.
95°F Outside Air Temperature at 40% Relative Humidity.
7
KQ05J10A-1 KQ06J10A-1 KQ08J10A-1 YQ06J10A-1
SPECIFICATIONS
KQ05J10A-3 KQ06J10A-3
BTUH (Cooling) 5300 6200 7900 6200
E.E.R. (Cooling) 9.0 9.5 9.5 10.0
Volts 115 115 115 115
Amperes (Cooling) 5.2 5.8 7.5 5.7
Total Watts (Cooling) 585 650 830 620
Hertz 60 60 60 60
Fuse/Breaker Size 15 15 15 15
Fan RPM 1075 1075 1075 1075
Evaporator Air CFM 165 165 165 140
Exhaust Air CFM Yes Yes Yes Yes
Dehumidification Pts/Hr 1.5 2.0 2.5 2.0
Width 19¾" 19¾" 19¾" 19¾"
Height 14" 14" 14" 14"
Depth 213/8" 213/8" 213/8" 213/8"
Minimum Ext. Into Room 5½" 5½" 5½" 5½"
Minimum Ext. to Outside 10¾" 10¾" 10¾" 10¾"
Net Weight 76 76 82 80
Shipping Weight 81 81 87 85
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
**KQ05J10A-1 56.34 23.66 76.5 265 5.2 29.0 12.0 R-22 9.8
**KQ05J10-3 56.34 23.66 76.5 265 5.2 29.0 13.5 R-22 9.8
**KQ06J10A-1 58.02 21.98 72.5 265 5.8 35.0 14.5 R-22 9.8
**KQ06J10A-3 58.02 21.98 72.5 265 5.8 35.0 13.0 R-22 9.8
**KQ08J10A-1 51.43 28.57 75.5 265 7.5 39.2 18.0 R-22 9.8
**YQ06J10A-1 54.10 25.90 74.5 260 5.7 39.2 19.0 R-22 9.8
* Rating Conditions:80°F Room Air Temperature and 50% Relative Humidity with
** Use Sunisco 4GDID Refrigerant Oil or Atmos 60.
8
95°F Outside Air Temperature at 40% Relative Humidity.
SPECIFICATIONS SC06H10D
BTUH (Cooling) 5950
E.E.R. (Cooling) 8.0
Volts 115
Amperes (Cooling) 6.8
Total Watts (Cooling) 760
Hertz 60
Fuse/Breaker Size 15
Fan RPM 1595
Evaporator Air CFM 125
Dehumidification Pts/Hr 2.0
Width 1411/16"
Height 1013/16"
Depth 27"
Minimum Ext. Into Room 2½"
PERFORMANCE DATA* SC06H10D
DISCHARGE 56.1
EVAPORATOR AIR AIR
TEMP. °F TEMP 23.9
DROP °F
OPERATING SUCTION 72
PRESSURES DISCHARGE 293
AMPS 6.8
ELECTRICAL
RATINGS LOCKED 35.0
ROTOR AMPS
R-22 CHARGE IN 14
REFRIG. OUNCES
COMP. CHARGE IN 9.8
OIL FLUID OZ.
Minimum Ext. To Outside 15½"
Net Weight 70
* Rating Conditions:
80°F Room Air Temperature and 50% Relative Humidity with
95°F Outside Air Temperature at 40% Relative Humidity.
Shipping Weight 80
PERFORMANCE DATA VOLTS BTUH CFM HEAT RISE
Heating HIGH SPEED
YQ06J10A 115 5300 140 35.0
PERFORMANCE DATA
Heating
YQ06J10A-1 EVAPORATOR SUCTION/HEAD
CONDITIONS BTUH AIR TEMP. RISE AMPERES WATTS PRESSURE
70°F Inside 62°F Outside 6200 41.0 6.7 670 65/295
70°F Inside 57°F Outside 5900 39.0 6.5 650 61/285
70°F Inside 52°F Outside 5600 37.0 6.4 630 58/275
AHAM 70°F Inside 47°F Outside 5300 35.0 6.2 615 55/265
70°F Inside 45°F Outside 5200 34.4 6.1 610 53/260
70°F Inside 42°F Outside 5000 33.1 6.0 595 51/255
9
SPECIFICATIONS KM14J10B1 KS10J10-1 KS12J10-1 KS12J30A1 KM18J30A2 KM21J304 KL21J30A3
KS10J10-3 KS12J103 KS12J30A3 KM18J30A3 KL25J30A1
BTUH 12500 18000 21000 25000
14000 10000 12000 12500 18000 20500 24700
E.E.R. 10.0 9.6 9.0 8.3
10.1 10.3 9.5 10.0 9.6 9.0 8.2
Volts 230 230 230 230
115 115 115 208 208 208 208
Amperes 5.8 8.3 10.5 13.5
12.0 9.1 10.8 6.2 9.1 11.3 15.0
1250 1875 2335 3010
Total Watts 1385 970 1265 1250 1875 2280 3010
Hertz 60 60 60 60 60 60 60
Fuse/Breaker Size 15 15 15 15 15 15 20
Fan RPM 1180 1115 1080 1180 1120 1120 1120
Evaporator Air CFM 400 325 325 325 440 535 610
Fresh Air CFM Yes Yes Yes Yes Yes Yes Yes
Exhaust Air CFM Yes Yes Yes Yes Yes Yes Yes
Dehumidification Pts/HR 3.7 2.8 3.5 3.5 5.5 6.3 7.6
Width 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16" 28"
Height 17-15/16" 15-15/16" 15-15/16" 15-15/16" 17-15/16" 17-15/16" 20-3/16"
Depth 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8" 33-5/8"
Minimum Ext. Into Room 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-3/16" 3-3/16"
Minimum Ext. to Outside 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16" 18-15/16"
Net Weight 128 108 111 111 136 183 190
Shipping Weight 138 118 121 121 148 203 210
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
KS10J101, KS10J103 61.0 19.0 79.0 269 9.1 48.3 21.0 11.8
KS12J101, KS12J103 57.0 23.0 78.0 288 10.8 54.0 25.0 11.8
KS12J30A1, KS12J30A3 57.0 23.0 79.0 293 26.3 26.5/24.0 11.8
KM14J10B1 54.78 22.52 75.0 280 67.0 40.0 32.0
KM18J30A2 KM18J30A3 56.0 24.0 73.0 262 42.0 42.0 13.9
KM21J304 56.0 24.0 75.0 260 56.0 46.0 32.0
KL25J30A1, KL25J30A3 55.0 25.0 68.5 300 71.0 53/57 32.0
* Rating Conditions:80°F. Room Air Temperature and 50% Relative Humidity with
95°F. Outside Air Temperature at 40% Relative Humidity.
5.8
6.2
12.0
8.3
9.1
10.5
11.3
13.5
15.0
10
SPECIFICATIONS RS10J101 RS10J103 RS12J101 RS12J103 RS15J301 RM15J101 RM18J302 RM18J303
BTUH 15,000 18,500 18,500
10,000 10,000 12,000 12,000 15,000 14,500 18,300 18,300
E.E.R. 11.0 11.0 10.5 10.5 9.6 10.5 10.0 10.0
10.0 10.0
Volts 115 115 115 115 230 115 230 230
208 208 208 208
Amperes 8.3 8.3 10.2 10.2 6.9 12.0 8.4 8.4
7.5 9.0 9.0
Total Watts 910 910 1145 1145 1565 1380 1850 1850
1565 1380 1830 1830
Hertz 60 60 60 60 60 60 60 60
Fuse/Breaker Size 15 15 15 15 15 15 15 15
Fan RPM 1180 1180 1115 1115 1080 1180 1120 1120
Evaporator Air CFM 300 300 325 325 330 400 425 425
Fresh Air CFM Yes Yes Yes Yes Yes Yes Yes Yes
Exhaust Air CFM Yes Yes Yes Yes Yes Yes Yes Yes
Dehumidification Pts/HR 2.6 2.6 3.5 3.5 5.0 3.7 5.7 5.7
Width 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16"
Height 15-15/16" 15-15/16" 15-15/16" 15-15/16" 15-15/16" 17-15/16" 17-15/16" 17-15/16"
Depth 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8"
Minimum Ext. Into Room 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-1/16"
Minimum Ext. to Outside 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16"
Net Weight 115 115 114 114 11.9 128 163 163
Shipping Weight 125 125 124 125 128 138 173 173
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
RS10J10-1, RS10J10-3 61.0 19.0 79.0 269 7.5 44.0 25/24 11.8
RS12J10, RS12J10-3 57.0 23.0 78.0 266 10.2 54.0 25.0 11.8
RS15J301 57.0 23.0 72.0 293 42.0 32.0 11.8
RM18J302, RM18J303 56.0 24.0 73.0 262 42.0 47/43 13.9
RM15J10-1 56.35 23.65 74.0 260 11.4 67.0 40.0 11.8
6.9
8.3
9.1
25
* Rating Conditions: 80°F. Room Air Temperature and 50% Relative Humidity with
95°F. Outside Air Temperature at 40% Relative Humidity.
11
SPECIFICATIONS YS09J10-1 YS13J33-1 YM18J34A-2 YL24J35A-1
BTUH (Cooling) 9000 13000 17500 24000
13000 17500 23800
BTUH (Heating) 8300 12400 16500 23000
12300 16300 22800
E.E.R. (Cooling) 11.5 9.8 9.4 9.0
9.8 9.4 9.0
E.E.R. (Heating) 11.0 9.4 9.6 9.8
9.4 9.6 9.8
Volts 115 230 230 230
208 208 208
Amperes (Cooling) 7.2 6.0 8.3 12.0
6.5 9.1 13.0
Amperes (Heating) 6.7 6.0 7.6 10.4
6.5 8.3 11.5
Total Watts (Cooling) 760 1325 1860 2665
1325 1860 2645
Hertz 60 60 60 60
Fuse/Breaker Size 15 20 30 30
Amps 16.0 19.5 24.0
14.7 17.0 22.4
Watts 3500 4200 5500
2900 3500 4650
BTUH 10700 13000 17300
Resistance
Fan RPM 1110 1110 1120 1120
Heater
Evaporator Air CFM 300 325 425 600
Exhaust Air CFM Yes Yes Yes Yes
Dehumidification Pts/Hr 1.7 3.5 5.2 7.0
Width 2515/16" 2515/16" 2515/16" 28"
Height 1515/16" 1515/16" 1715/16" 203/16"
Depth 273/8" 273/8" 273/8" 335/8"
Minimum Ext. Into Room 31/16" 31/16" 31/16" 33/16"
Minimum Ext. to Outside 1615/16" 1615/16" 1615/16" 1815/16"
Net Weight 113 117 166 198
Shipping Weight 124 128 153 217
8900 10600 14300
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
YS09J10-1
YS13J33-1 56.0 24.0 75.0 280 6.0 29.0 30.0 11.8
YM18J34A-2 53.0 27.0 74.0 277 8.7 42.0 54.0 30.0
YL24J35A-1 55.0 25.0 77.0 272 12.0 61.0 69.0 32.0
* Rating Conditions: 80°F Room Air Temperature and 50% Relative Humidity with
95°F Outside Air Temperature at 40% Relative Humidity.
59.0 21.0 87.0 241 7.2 39.2 28.0 11.8
6.5
9.3
13.0
12
PERFORMANCE DATA *YS09J10-1 **YS13J33-1 **YM18J34A-2 **YL24J35A-1
(Heating)
AHAM @ 70°F Inside 47°F Outside 8300 12400/12300 17200/17200 23000/22800
@ 70°F Inside 35°F Outside 10700/8900 13000/10600 17300/14300
Evaporator Air Temperature Rise
@ 70°F Inside 47°F Outside 19.62 31.38 24.74 31.71
@ 70°F Inside 35°F Outside 28.69/23.87 24.46/20.22 24.38/20.16
AMPS @ 70°F Inside 47°F Outside 6.7 6.0/6.5 8.5/9.0 10.4/11.5
@ 70°F Inside 35°F Outside 16.0/14.7 19.5/17.0 24.0/22.4
Watts @ 70°F Inside 47°F Outside 760 1340/1300 1880/1820 2350/2340
@ 70°F Inside 35°F Outside 3500/2900 5500/4650 5500/4650
Suction/Head PSIG
@ 70°F Inside 47°F Outside 53.5/222 52.5/251 53/225 54/236.5
* Do not operate below 37° ambient.
** Heating element comes on at 35°F outside ambient and compressor shuts off.
13
SPECIFICATIONS ES12J33-1 ES15J33A-1 EM18J34A-2 EL24J35A-1 EL33J35-2 EK12J33A-1 EK18J34A-2
ES12J33-3 EM18J34A-3EL24J35A-2 EK12J33A-3 EK18J34A-3
BTUH (Cooling) 12000 15000 18500 24000 33000 12500 18000
BTUH (Heating) 10700 10700 13000 17300 17300 10700 13000
E.E.R. (Cooling) 10.5 9.6 10.0 9.5 9.0 10.0 9.6
E.E.R. (Heating)
12000 15000 18300 24000 32500 12500 18000
8900 8900 10600 14300 14300 8900 10600
11.0 9.6 10.0 9.4 9.0 10.0 9.6
Volts 230 230 230 230 230 230 230
Amperes (Cooling) 5.5 6.9 8.4 12.0 17.0 5.8 8.3
Amperes (Heating) 16.0 16.0 19.5 24.0 24.0 16.0 19.5
Total Watts (Cooling) 1145 1665 1850 2610 3670 1250 1875
Hertz 60 60 60 60 60 60 60
Fuse/Breaker Size 20 20 30 30 30 20 30
Fan RPM 1120 1100 1120 1100 1100 1080 1120
Evaporator Air CFM 325 330 425 560 700 325 440
Fresh Air CFM Yes Yes Yes Yes Yes Yes Yes
Exhaust Air CFM Yes Yes Yes Yes Yes Yes Yes
Dehumidification Pts/Hr 3.5 5.0 5.7 7.7 11.0 3.5 5.5
Width 25 15/16" 25 15/16" 25 15/16" 28" 28" 25 15/16" 25 15/16"
Height 15 15/16" 15 15/16" 17 15/16" 20 3/16" 20 3/16" 15 15/16" 17 15/1
Depth 27 3/8" 27 3/8" 27 3/8" 33 5/8" 33 5/8" 27 3/8" 27 3/8"
Minimum Ext. Into Room 3 1/16" 3 1/16" 3 1/16" 3 3/16" 3 3/16" 3 1/16" 3 1/16"
Minimum Ext. to Outside 16 15/16" 16 15/16" 16 15/16" 18 15/16" 18 15/16" 16 15/16" 16 15/16"
Net Weight 111 116 160 191 215 108 158
208 208 208 208 208 208 208
5.7 7.5 9.0 13.3 18.0 6.2 9.1
14.7 14.7 17.0 22.4 22.4 14.7 17.0
1090 1655 1830 2640 3610 1250 1875
6"
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
ES12J33-1 58.0 22.0 77.5 266 5.5 26.3 25.0 11.8
ES12J33-3 5.7 26.3 26.0 11.8
ES15J33A-1 53.0 27.0 77.0 260 7.4 42.0 32.0 30.0
EM18J34A-2 55.0 25.0 73.0 262 8.2 42.0 47.0 30.0
EM18J34A-3 8.7 42.0 43.0 30.0
EL24J35A-1 55.0 25.0 73.5 280 12.0 61.0 53.0 32.0
EL24J35A-3 13.3 57.0 32.0
EL33J35-2 52.0 28.0 71.0 299 17.0 94.0 78.0 35.0
EK12J33A-1 57.0 23.0 79.0 293 5.8 26.3 26.5 11.8
EK12J33A-3 6.2 26.3 24.0 11.8
EK18J34A-2 55.0 25.0 73.0 262 8.2 42.0 46.0 30.0
EK18J34A-3 42.0 42.0 30.0
* Rating Conditions:80°F Room Air Temperature and 50% Relative Humidity with
95°F Outside Air Temperature at 40% Relative Humidity.
8.2
18.0
PERFORMANCE DATA VOLTS BTUH CFM HEAT RISE
Heating HIGH SPEED
ES12J33-1 230 10700 1120 30.5
ES12J33-3 208 8900
ES15J33A-1 230 10700 1100 30.5
EM18J34A-2 230 13000 1120 28.3
EM18J34A-1 208 10600
EL24J35A-1 230 17300 1100 28.6
EL24J35A-3 208 14300
EL33J35 230 17300 1110 22.8
EK12J33A-1 230 10700 1080 30.5
EK12J33A-3 208 8900
EK18J34A-2 230 13000 1120 27.5
EK18J34A-3 208 10600
14
208 8900
208 14300
SS08J10R1 SS09J10A1 SS10J10R1 SS12J10R1 SS12J30A1
SPECIFICATIONS
SS08J10A1 SS10J10A1 SS12J10A1 SS12J30A
SS12J10A3
BTUH 8200 9200 10200 12000 12000
12000
E.E.R. 10.8 11.55 11.7 10.5 10.5
Volts 115 115 115 115 230/208
Amperes 6.7 7.2 7.5 10.2 5.5/5.7
Total Watts 745 800 870 1145 1145
1090
Hertz 60 60 60 60 60
Fuse/Breaker Size 15 15 15 15 15
Fan RPM 1110 1110 1095 1120 1110
Evaporator Air CFM 310 300 300 325 325
Fresh Air CFM Yes Yes Yes Yes Yes
Exhaust Air CFM Yes Yes Yes Yes Yes
Dehumidification Pts/HR 2.0 1.7 2.6 3.5 3.5
Width 25-15/16" 25-15/16" 25-15/16" 25-15/16" 25-15/16"
Height 15-15/16" 15-15/16" 15-15/16" 15-15/16" 15-15/16"
Depth 27-3/8" 27-3/8" 27-3/8" 27-3/8" 27-3/8"
Minimum Ext. Into Room 3-1/16" 3-1/16" 3-1/16" 3-1/16" 3-3/16"
Minimum Ext. to Outside 16-15/16" 16-15/16" 16-15/16" 16-15/16" 16-15/16"
Net Weight 108 113 115 114 114
Shipping Weight 118 123 125 127 2127
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
SS08J10R1
SS08J10A-1 61.4 18.6 86.5 262 6.7 33.0 24 11.8
SS09J10A-1 57.8 22.2 84.0 251 7.2 39.2 26.0 11.8
SS10J10R-1
SS10J10A-1 57.22 22.78 77.5 266 10.2 54.0 32.0 11.8
SS12J10R-1
SS12J10A-1 57.22 22.78 77.5 266 10.2 54.0 25.0 11.8
SS12J10A-3
SS12J30A-1 57.2 22.8 77.0 260 5.5 56.3 26.0 11.8
SS12J30A-3 5.7
* Rating Conditions: 80°F. Room Air Temperature and 50% Relative Humidity with
95°F. Outside Air Temperature at 40% Relative Humidity.
15
SPECIFICATIONS
SM18J30A3 SL24J30A1
BTUH 14000 15000 18200 21000 24000 28000 33000
15000 18000 20500 24000 27500 32500
E.E.R. 10.5 9.6 10.0 9.0 9.1 8.9 9.0
9.6 10.0 9.0 8.9 9.0 9.0
Volts 115 230 230 230 230 230 230
208 208 208 208 208 208
Amperes 12.0 6.9 8.4 10.6 12.0 14.0 17.0
7.5 9.0 11.4 13.3 15.5 18.0
Total Watts 1335 1565 1850 2333 2610 3110 3670
1555 1830 2278 2640 3090 3640
Hertz 60 60 60 60 60 60 60
Fuse/Breaker Size 15 15 15 20 20 20 20
Fan RPM 1110 1110 1120 1120 1100 1100 1110
Evaporator Air CFM 400 325 425 440 560 600 700
Fresh Air CFM Ye s Ye s Ye s Ye s Yes Yes Ye s
Exhaust Air CFM Ye s Ye s Ye s Ye s Yes Yes Ye s
Dehumidification Pts/HR 3.7 5.0 5.7 7.0 7.7 8.8 11.0
SM14J10B1 SS15J30A1 SM18J30A2 SM21J30A4 SL24J30A3 SL28J30A SL33J302
Width 25-15/16" 25-15/16" 25-15/16" 25-15/16" 28" 28" 28"
Height 17-15/16" 15-15/16" 17-15/16" 17-15/16" 20-3/16" 20-3/16" 20-3/16"
Depth 27-3/8" 27-3/8" 27-3/8" 27-3/8" 33-5/8" 33-5/8" 33-5/8"
Minimum Ext. Into Room 3-1/16" 3-1/16" 3-1/16" 3-3/16" 3-3/16" 3-3/16" 3-3/16"
Minimum Ext. to Outside 16-15/16" 16-15/16" 16-15/16" 16-15/16" 18-15/16" 18-15/16" 18-15/16"
Net Weight 128 124 138 183 192 201 216
Shipping Weight 140 134 150 203 212 221 236
PERFORMANCE EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
DATA* TEMP. °F. PRESSURES RATINGS REFRIG. OIL
Cooling DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F ROTOR AMPS OZ. FLUID OZ.
SM14J10B1 56.34 23.66 84.0 245 67.0 40.0 14.3
SS15J30A1 54.35 25.65 72.0 292 42.0 32.0 13.9
SM18J30A2, 54.56 25.44 74.0 265 33.0 47.0 11.8
SM18J30A3 43.0
SM21J30A4 52.58 27.42 75 290 61 46 32.0
12.0
6.9
7.5
8.4
9.0
10.6
11.4
SL24J30A1. 54.86 25.14 73.5 280 61.0 53. 32.0
SM24J30A3 57.0
SL28J30A1 52.32 27.68 74.0 291 69.5 87.0 32.0
SL33J302 52.93 27.07 71.0 299 94.0 78 35.0
12.0
13.3
14.0
15.5
17.0
18.0
* Rating Conditions:80°F. Room Air Temperature and 50% Relative Humidity with
95°F. Outside Air Temperature at 40% Relative Humidity.
16
SPECIFICATIONS WS07A10D WS09A10D WS12A10D WS09A30D WS12A30D WS13A30D
BTUH 7000 9000 11500 9000 11500 12500
8800 11300 12300
E.E.R. 9.5 9.2 9.0 9.2 9.0 8.7
9.0 9.0 8.7
Volts 115 115 115 230 230 230
208 208 208
Amperes 6.7 9.0 11.5 4.5 5.7 6.3
4.9 6.3 6.8
Total Watts 740 980 1280 980 1280 1440
980 1255 1415
Hertz 60 60 60 60 60 60
Fuse/Breaker Size 15 15 15 15 15 15
Fan RPM 1145 1140 1275 1140 1275 1275
Evaporator Air CFM 260 260 290 260 290 250
Fresh Air CFM
Exhaust Air Yes Yes Yes Yes Yes Yes
Dehumidification Pts/Hr 1.4 2.1 2.9 2.1 2.9 4.0
Width 27" 27" 27" 27" 27" 27"
Height 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4"
Depth 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4"
Minimum Ext. Into Room 7-1/2" 7-1/2" 7-1/2" 7-1/2" 7-1/2" 7-1/2"
Minimum Ext. To Outside 9/16" 9/16" 9/16" 9/16" 9/16" 9/16"
Net Weight 75 85 94 83 91 101
Shipping Weight 93 103 112 101 109 119
PERFORMANCE
DATA*
Cooling
WS07A10D 59.5 19.5 82 280 6.7 32.0 19 11.8
WS09A10D 58.0 22.0 82 295 9.0 44.0 20 11.8
WS12A10D 55.0 25.0 76 295 11.5 54.0 36 11.8
WS09A30D 58.0 22.0 80 295 4.5 20.0 20 11.8
WS12A30D 55.0 25.0 76 295 5.7 26.3 36 11.8
WS13A30D 47.1 32.9 73 308 6.3 33.0 38 11.8
*Rating Conditions: 80°F. Room Air Temperature and 50% Relative Humidity with
EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
TEMP. °F. PRESSURES RATINGS REFRIG. OIL
DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F. ROTOR AMPS OUNCES FLUID OZ.
4.9
6.3
6.8
95°F. Outside Air Temperature at 40% Relative Humidity.
17
SPECIFICATIONS WE09A33D WE12A33D WE13A33D WY09A33D WY12A33E
BTUH (Cooling) 9000 11500 12500 9000 11300
8800 11300 12300 8800 10900
BTUH (Heating) 11000 11000 11000 8200 10800
9100 9100 9100 8200 10500
E.E.R. (Cooling) 9.2 9.0 8.7 9.0 8.6
9.0 9.0 8.7 9.0 8.5
E.E.R (Heating) 9.0 9.0
9.8 9.0
Volts 230 230 230 230 230
208 208 208 208 208
Amperes (Cooling) 4.5 5.7 6.3 4.5 5.8
4.9 6.3 6.8 4.8 6.2
Amperes (Heating) 16.0 16.0 16.0 3.8 5.4
14.7 14.7 14.7 4.1 5.7
Total Watts (Cooling) 480 1280 1440 1000 1315
980 1255 1415 980 1280
Total Watts (Heating) 3550 3550 3550 870 1200
2950 2950 2950 840 1165
Hertz 60 60 60 60 60
Fuse/Breaker Size 20 20 20 20 20
Amps 16.0 16.0
14.7 14.7
Resistance
Heater
Fan RPM 1140 1275 1275 1140 1275
Evaporator Air CFM 260 290 250 270 290
Fresh Air CFM
Exhaust Air CFM Yes Yes Yes Yes Yes
Dehumidification Pts/Hr 2.1 2.9 4.0 2.1 2.9
Width 27" 27" 27" 27" 27"
Height 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4"
Depth 16-3/4" 16-3/4" 16-3/4" 16-3/4" 16-3/4"
Minimum Ext. Into Room 7-1/2" 7-1/2" 7-1/2" 7-1/2" 7-1/2"
Minimum Ext. To Outside 9/16" 9/16" 9/16" 9/16" 9/16"
Net Weight 84 92 102 86 94
Shipping Weight 103 111 121 107 116
Watts 3550 3550
2950 2950
BTUH 11000 11000
9100 9100
18
PERFORMANCE
DATA*
Cooling
EVAPORATOR AIR OPERATING ELECTRICAL R-22 COMP.
TEMP. °F. PRESSURES RATINGS REFRIG. OIL
DISCHARGE TEMP. SUCTION DISCHARGE AMPS LOCKED CHARGE IN CHARGE IN
AIR DROP °F. ROTOR AMPS OUNCES FLUID OZ.
WE09A33D 58.0 22.0 80 295 4.5 20.0 20 11.8
4.9
WE12A33D 55.0 25.0 76 295 5.7 26.3 36 11.8
6.3
WE13A33D 47.1 32.9 73 308 6.3 33.0 38 11.8
6.8
WY09A33D 58.0 22.0 80 295 4.5 20.0 26 11.8
4.8
WY12A33E 55.0 25.0 76 295 5.8 26.3 43 11.8
6.2
*Rating Conditions: 80°F. Room Air Temperature and 50% Relative Humidity with
95°F. Outside Air Temperature at 40% Relative Humidity.
PERFORMANCE VOLTS BTUH CFM HEAT RISE
DATA (Heating) HIGH SPEED
WE09A33D 230 11000 260 39.0
208 9100
WE12A33D 230 11000 290 35.0
208 9100
WE13A33D 230 11000 250 40.0
208 9100
19
PERFORMANCE DATA *WY09A33D *WY12A33E
(Heating)
BTUH @70°F Inside 62°F Outside 9700 12400
@70°F Inside 57°F Outside 9300 12000
@70°F Inside 52°F Outside 8800 11400
** @70°F Inside 47°F Outside 8200/8100 10800/10400
@70°F Inside 42°F Outside 7600 10000
@70°F Inside 37°F Outside 6800 9000
@70°F Inside 35°F Outside 11000/9100 11000/9100
Evaporator Air Temperature Rise
@70°F Inside 62°F Outside 32.00 37.60
@70°F Inside 57°F Outside 30.75 36.40
@70°F Inside 52°F Outside 29.10 34.50
** @70°F Inside 47°F Outside 27.10/26.80 32.70/31.50
@70°F Inside 42°F Outside 25.10 30.30
@70°F Inside 37°F Outside 22.50 27.30
@70°F Inside 35°F Outside 36.40/30.10 33.30/27.60
AMPS @70°F Inside 62°F Outside 4.0 5.6
@70°F Inside 57°F Outside 3.9 5.5
@70°F Inside 52°F Outside 3.85 5.4
** @70°F Inside 47°F Outside 3.8/4.1 5.3/5.6
@70°F Inside 42°F Outside 3.6 5.1
@70°F Inside 37°F Outside 3.4 4.8
@70°F Inside 35°F Outside 16.0/14.7 16.0/14.7
Watts @70°F Inside 62°F Outside 880 1280
@70°F Inside 57°F Outside 870 1260
@70°F Inside 52°F Outside 860 1220
** @70°F Inside 47°F Outside 835/810 1175/1155
@70°F Inside 42°F Outside 800 1130
@70°F Inside 37°F Outside 760 1070
@70°F Inside 35°F Outside 3550/2950 3550/2950
Suction/Head PSIG
@70°F Inside 62°F Outside 66/315 61/325
@70°F Inside 57°F Outside 62/285 59/290
@70°F Inside 52°F Outside 57/285 53/275
** @70°F Inside 47°F Outside 53/265 49/255
@70°F Inside 42°F Outside 49/215 45/240
@70°F Inside 37°F Outside 45/203 41/220
@70°F Inside 35°F Outside 44/200 40/215
* Heating Element comes on at 35°F outside ambient and compressor shuts off.
** AHAM Rating Conditions.
20
Refrigeration SystemRefrigeration System
Refrigeration System
Refrigeration SystemRefrigeration System
Sequence of OperationSequence of Operation
Sequence of Operation
Sequence of OperationSequence of Operation
A good understanding of the basic operation of the refrigeration
system is essential for the service technician. Without this
understanding, accurate troubleshooting of refrigeration
system problems will be more difficult and time consuming, if
not (in some cases) entirely impossible. The refrigeration
system uses four basic principles (laws) in its operation they
are as follows:
1. "Heat always flows from a warmer body to a cooler body."
2. "Heat must be added to or removed from a substance
before a change in state can occur"
3. "Flow is always from a higher pressure area to a lower
pressure area."
4. "The temperature at which a liquid or gas changes state
is dependent upon the pressure."
The refrigeration cycle begins at the compressor. Starting
the compressor creates a low pressure in the suction line which
draws refrigerant gas (vapor) into the compressor. The
compressor then "compresses" this refrigerant, raising its
pressure and its (heat intensity) Temperature.
The refrigerant leaves the compressor through the discharge
line as a hot high pressure gas (vapor). The refrigerant enters
the condenser coil where it gives up some of its heat. The
condenser fan moving air across the coil's finned surface
facilitates the transfer of heat from the refrigerant to the
relatively cooler outdoor air.
When a sufficient quantity of heat has been removed from
the refrigerant gas (vapor), the refrigerant will "condense" (i.e.
change to a liquid). Once the refrigerant has been condensed
(changed) to a liquid it is cooled even further by the air that
continues to flow across the condenser coil.
The RAC design determines at exactly what point (in the
condenser) the change of state (i.e. gas to a liquid) takes
place. In all cases, however, the refrigerant must be totally
condensed (changed) to a liquid before leaving the condenser
coil.
The refrigerant leaves the condenser coil through the liquid line
as a warm high pressure liquid. It next will pass through the
refrigerant drier (if so equipped). It is the function of the drier to
trap any moisture present in the system, contaminants, and large
particulate matter.
The liquid refrigerant next enters the metering device. The metering
device is a capillary tube. The purpose of the metering device is to
"meter" (i.e. control or measure) the quantity of refrigerant entering
the evaporator coil.
In the case of the capillary tube this is accomplished (by design)
through size (and length) of device, and the pressure difference
present across the device.
Since the evaporator coil is under a lower pressure (due to the
suction created by the compressor) than the liquid line, the liquid
refrigerant leaves the metering device entering the evaporator coil.
As it enters the evaporator coil, the larger area and lower pressure
allows the refrigerant to expand and lower its temperature (heat
intensity). This expansion is often referred to as "boiling". Since
the unit's blower is moving Indoor air across the finned surface of
the evaporator coil, the expanding refrigerant absorbs some of
that heat. This results in a lowering of the indoor air temperature,
hence the "cooling" effect.
The expansion and absorbing of heat cause the liquid refrigerant
to evaporate (i.e. change to a gas). Once the refrigerant has
been evaporated (changed to a gas), it is heated even further by
the air that continues to flow across the evaporator coil.
The particular system design determines at exactly what point (in
the evaporator) the change of state (i.e. liquid to a gas) takes
place. In all cases, however, the refrigerant must be totally
evaporated (changed) to a gas before leaving the evaporator coil.
The low pressure (suction) created by the compressor causes the
refrigerant to leave the evaporator through the suction line as a
cool low pressure vapor. The refrigerant then returns to the
compressor, where the cycle is repeated.
Suction
Line
Evaporator
Coil
Refrigerant
Strainer
Metering
Device
Refrigerant
Drier
Discharge
Line
Condenser
Coil
Compressor
Liquid
Line
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