SERVICE MANUAL (Basic Information)
KHS1822 / CH1822
SPLIT SYSTEM AIR CONDITIONER
Indoor Unit
Outdoor Unit
HIGH
EFFICIENCY
KHS1822
CH1822
8526481021800
REFERENCE NO. WM–700796
W
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SERVICE MANUAL
KHS1822 / CH1822
(Basic Information)
WM–700796
ii
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When Transporting
IMPORTANT!
Please Read Before Starting
Be careful when picking up and moving the indoor and out-
door units. Get a partner to help, and bend your knees when
lifting to reduce strain on your back. Sharp edges or thin
aluminum fins on the air conditioner can cut your fingers.
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an important
part of your job to install or service the system so it operates
safely and efficiently.
When Installing…
…In a Ceiling or Wall
For safe installation and trouble-free operation, you must:
Make sure the ceiling/wall is strong enough to hold the
unit’s weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
G
Carefully read this instruction booklet before beginning
G
Follow each installation or repair step exactly as shown
G
Observe all local, state, and national electrical codes
…In a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
G
Pay close attention to all warning and caution notices
given in this manual
This symbol refers to a hazard or
…In Moist or Uneven Locations
unsafe practice which can result
in severe personal injury or
death.
WARNING:
CAUTION:
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
This symbol refers to a hazard or
unsafe practice which can result
in personal injury or product or
property damage.
…In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
If Necessary, Get Help
…In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher
than drifting snow. Provide snow vents.
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
• Apply refrigerant lubricant to the matching surfaces of the
flare and union tubes before connecting them, then tighten
the nut with a torque wrench for a leak-free connection.
SPECIAL PRECAUTIONS
When Wiring
• Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be
either narrow or wide. Therefore, to avoid confusion the
refrigerant tubing for your particular model is specified as
either “narrow” or “wide” rather than as “liquid” or “gas.”
ELECTRICAL SHOCK CAN CAUSE SEVERE PER-
SONAL INJURY OR DEATH. ONLY A QUALIFIED,
EXPERIENCED ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tub-
ing are completed or reconnected and checked.
When Servicing
• Turn the power OFF at the main power box (mains)
before opening the unit to check or repair electrical parts
and wiring.
• Highly dangerous electrical voltages are used in this sys-
tem. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and inad-
equate grounding can cause accidental injury or death.
• Keep your fingers and clothing away from any moving
parts.
• Ground the unit following local electrical codes.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left
inside the unit being serviced.
• Connect all wiring tightly. Loose wiring may cause over-
heating at connection points and a possible fire hazard.
WM–700796
iii
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Table of Contents
Page
1
1. OPERATING RANGE...............................................................................................................................
2. SPECIFICATIONS ....................................................................................................................................
2
2
Unit Specifications .......................................................................................................................................
3. DIMENSIONAL DATA .............................................................................................................................
4. COOLING CAPACITY.............................................................................................................................
5. HEATING CAPACITY..............................................................................................................................
6. REFRIGERANT FLOW DIAGRAM ......................................................................................................
7. ELECTRICAL DATA................................................................................................................................
3
4
6
8
9
9
G
Electrical Characteristics .......................................................................................................................
Electric Wiring Diagram........................................................................................................................
G
10
WM–700796
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1. OPERATING RANGE
KHS1822 / CH1822
Temperature
Indoor Air Intake Temp.
95°F DB / 71°F WB
67°F DB / 57°F WB
80°F DB / 67°F WB
— DB / — WB
Outdoor Air Intake Temp.
115°F DB
Maximum
Cooling
Minimum
67°F DB
Maximum
Heating
75°F DB / 65°F WB
17°F DB / 15°F WB
Minimum
WM–700796
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2. SPECIFICATIONS
Unit Specifications
Indoor unit
KHS1822
CH1822
Model No.
Outdoor unit
Cooling
16,500 / 16,000
4.84 / 4.69
Heating
18,000 / 17,600
5.27 / 5.16
BTU/h
Capacity
kW
Air circulation (High)
Moisture removal (High)
Phase, Frequency
Voltage rating
Available voltage range
Running amperes
Power input
cu. ft/min.
440 / 420
5.3 / 5.2
Pints/h
Hz
Single, 60
V
230 / 208
187 to 253
8.0 / 8.6
230 / 208
187 to 253
8.0 / 8.6
V
A
W
%
1,810 / 1,760
98 / 98
1,810 / 1,760
98 / 98
Power factor
Starting amperes
S.E.E.R. (H.S.P.F.)
Heat element
A
52
BTU/Wh
kW
10.0 / 10.0
—
(6.8 / 6.8)
1.80 / 1.47
Controls
Microprocessor
Control unit
Wireless remote control unit
IC thermostat
ON/OFF 24-hours & Program
3 and Auto / 1
Manual / Automatic
Washable, easy access
Rotary
Temperature control
Timer
Fan speeds
Indoor / Outdoor
Air deflector
Horizontal / Vertical
Air filter
Compressor
Refrigerant amount charged at shipment
lbs. (kg)
R22: 4.25 (1.93)
Capillary tube
Flare type
Refrigerant control
Refrigerant tubing connections
In-Hi / Me / Lo
Out-Hi
dB-A
dB-A
47 / 44 / 40
Operation sound
55
Max. allowable tubing length at shipment
Limit of tubing length
ft. (m)
ft. (m)
ft. (m)
33 (10)
65 (20)
Limit of elevation difference
between the 2 units
Outdoor unit is higher than indoor unit: 23 (7)
Outdoor unit is lower than indoor unit: 23 (7)
Narrow tube
in. (mm)
in. (mm)
1/4 (6.35)
5/8 (15.88)
Refrigerant tube o.d.
Wide tube
Refrigerant tube kit
Accessories
Optional
Hanging wall bracket
Indoor unit
14-3/16 (360)
38-31/32 (990)
7-25/32 (198)
30 (13.5)
Outdoor unit
24-13/16 (630)
32-11/16 (830)
12-13/32 (315)
134 (61)
Height
in. (mm)
in. (mm)
Width
Depth
in. (mm)
Net weight
lbs. (kg)
Shipping volume
Shipping weight (Approx.)
cu. ft. (cu. m)
lbs. (kg)
4.8 (0.136)
10.4 (0.294)
143 (65)
37.4 (17)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks: Rating conditions are:
Cooling: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Heating: Outside air temperature 47°F DB/43°F WB
Indoor unit entering air temperature 70°F WB
WM–700796
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3. DIMENSIONAL DATA
Indoor Unit: KHS1822
14-3/16
38-31/32
7-25/32
Rear panel
(Center point of gravity)
Wireless remote
control unit
1-61/64
2-13/64
19/32
Drain hose O.D. 1-1/4
Narrow tube O.D. 1/4
5-19/32
Center of
tubing hole
(For right rear)
Wide tube O.D. 5/8
Outdoor Unit: CH1822
21-3/16
5-3/4
Air intake
Air
intake
4 × 15/32 dia. hole
Check port
Air discharge
32-11/16
1/4 narrow tubing
service valve
2-1/4
1-3/16
5/8 wide tubing
service valve
11-7/32
2-3/8
3-3/4
3/4
WM–700796
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4. COOLING CAPACITY
230V
KHS1822 / CH1822
Rating Capacity: 16,500 BTU/H
Evaporator
Air Flow Rate: 440 CFM
Condenser
Ent. Temp. °F/(°C)
Ambient Temp.
°F/(°C)
75
(23.9)
85
(29.4)
95
(35.0)
105
(40.6)
115
(46.1)
WB
DB
TC
kW
16,340
1.31
15,590
1.43
14,850
1.56
14,010
1.69
12,870
1.86
59
(15.0)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
11,540
12,910
14,340
15,720
16,340
11,140
12,510
13,950
15,320
15,590
10,750
12,130
13,560
14,850
14,850
10,320
11,700
13,130
14,010
14,010
9,760
11,130
12,560
12,870
12,870
TC
kW
16,900
1.32
16,370
1.45
15,720
1.58
14,870
1.72
13,700
1.90
63
(17.2)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
9,780
11,150
12,590
13,960
15,330
9,520
10,890
12,330
13,700
15,070
9,210
10,580
12,020
13,390
14,760
8,810
10,180
11,610
12,990
14,360
8,270
9,640
11,070
12,440
13,700
TC
kW
17,360
1.34
17,080
1.46
*16,500
1.60
15,590
1.74
14,520
1.94
67
(19.4)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
7,960
9,330
10,770
12,140
13,510
7,840
9,210
10,640
12,010
13,390
7,580
8,950
10,390
11,760
13,130
7,190
8,560
9,990
11,370
12,740
6,730
8,100
9,540
10,910
12,280
TC
kW
17,900
1.35
17,610
1.48
17,160
1.62
16,380
1.79
15,430
1.98
71
(21.7)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
6,090
7,460
8,900
10,270
11,640
5,970
7,340
8,780
10,150
11,520
5,790
7,170
8,600
9,970
11,350
5,490
6,860
8,300
9,670
11,040
5,120
6,490
7,930
9,300
10,670
TC
kW
18,250
1.38
18,050
1.50
17,660
1.65
17,030
1.83
16,340
2.02
75
(23.9)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
5,600
7,030
8,400
9,780
5,530
6,960
8,330
9,700
5,380
6,820
8,190
9,560
5,160
6,590
7,970
9,340
4,920
6,350
7,720
9,100
TC: Total Cooling Capacity (BTU/H)
SHC: Sensible Heat Capacity (BTU/H)
kW: Compressor Input (kW)
Remarks: Rating conditions (* mark) are: Outdoor ambient temperature 95°F DB
Indoor unit entering air temperature 80°F DB/67°F WB
WM–700796
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208V
KHS1822 / CH1822
Rating Capacity: 16,000 BTU/H
Air Flow Rate: 420 CFM
Condenser
Evaporator
Ent. Temp. °F/(°C)
Ambient Temp.
°F/(°C)
75
(23.9)
85
(29.4)
95
(35.0)
105
(40.6)
115
(46.1)
WB
DB
TC
kW
15,840
1.28
15,120
1.40
14,400
1.52
13,580
1.65
12,480
1.81
59
(15.0)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
11,180
12,500
13,880
15,200
15,840
10,800
12,120
13,500
14,820
15,120
10,420
11,740
13,120
14,400
14,400
10,000
11,320
12,700
13,580
13,580
9,450
10,770
12,150
12,480
12,480
TC
kW
16,380
1.29
15,870
1.42
15,250
1.54
14,420
1.68
13,280
1.85
63
(17.2)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
9,490
10,810
12,190
13,510
14,830
9,240
10,560
11,940
13,260
14,580
8,930
10,250
11,640
12,960
14,280
8,540
9,860
11,240
12,560
13,880
8,010
9,330
10,720
12,040
13,280
TC
kW
16,830
1.30
16,560
1.43
*16,000
1.56
15,120
1.70
14,080
1.89
67
(19.4)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
7,730
9,050
10,430
11,750
13,080
7,610
8,930
10,310
11,630
12,950
7,360
8,680
10,060
11,380
12,710
6,980
8,300
9,680
11,000
12,320
6,540
7,860
9,240
10,560
11,880
TC
kW
17,360
1.32
17,070
1.44
16,640
1.58
15,890
1.75
14,960
1.93
71
(21.7)
72 (22.2)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
SHC
5,930
7,250
8,630
9,950
11,270
5,810
7,130
8,520
9,840
11,160
5,640
6,960
8,340
9,660
10,980
5,340
6,660
8,050
9,370
10,690
4,980
6,300
7,690
9,010
10,330
TC
kW
17,700
1.34
17,500
1.47
17,120
1.61
16,510
1.79
15,840
1.97
75
(23.9)
76 (24.4)
80 (26.7)
84 (28.9)
88 (31.1)
SHC
SHC
SHC
SHC
5,450
6,830
8,150
9,470
5,380
6,760
8,080
9,400
5,240
6,620
7,940
9,260
5,020
6,410
7,730
9,050
4,790
6,170
7,490
8,810
TC: Total Cooling Capacity (BTU/H)
SHC: Sensible Heat Capacity (BTU/H)
kW: Compressor Input (kW)
Remarks: Rating conditions (* mark) are: Outside ambient temperature 95°F DB
Indoor unit entering air temperature 80°F DB/67°F WB
WM–700796
5
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5. HEATING CAPACITY
1 Phase 60Hz 230V
Indoor Entering Air Temperature 70°F
30,000
25,000
24,120
20,000
18,000
15,000
10,000
5,000
17
(–8.3)
23
(–5)
32
(0)
41
(5)
47 50
(8.3)
59
(15)
68
(20)
75°F
(23.7°C)
Temperature of Air Entering Outdoor Coil
(°F DB at 75% RH)
WM–700796
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1 Phase 60Hz 208V
Indoor Entering Air Temperature 70°F
30,000
25,000
22,640
20,000
17,600
15,000
10,000
5,000
17
(–8.3)
23
(–5)
32
(0)
41
(5)
47 50
(8.3)
59
(15)
68
(20)
75°F
(23.7°C)
Temperature of Air Entering Outdoor Coil
(°F DB at 75% RH)
WM–700796
7
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6. REFRIGERANT FLOW DIAGRAM
Cooling Cycle
Wide tube
service
valve
Accumulator
Wide tube
Disharge pressure
regulator
O.D.
5/8"
P
(ø15.88 mm)
Muffler
4-way
valve
Muffler
Indoor unit
Muffler
Capillary
Narrow tube
service
valve
Narrow tube
Check
port
Capillary
O.D.
1/4"
(ø6.35 mm)
(
)
Strainer
Check Drier
valve
Outdoor unit
Heating Cycle
Wide tube
service
valve
Accumulator
Wide tube
Disharge pressure
regulator
O.D.
5/8"
(ø15.88 mm)
P
4-way
valve
Muffler
Capillary
Narrow tube
service
valve
Narrow tube
Check
port
Capillary
O.D.
1/4"
(
)
(ø6.35 mm)
Strainer
Check Drier
valve
Indoor unit
Outdoor unit
WM–700796
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7. ELECTRICAL DATA
G Electrical Characteristics
KHS1822 / CH1822
Performance at
Indoor Unit
Outdoor Unit
Complete Unit
230/208V – 1ø – 60Hz
Fan Motor
Max. Heat
Fan Motor
Compressor
7.13 / 7.73
1,595 / 1,564
7.13 / 7.73
1.595 / 1.574
52
Heat-pump
Max. Heat
A
W
A
0.40 / 0.40
90 / 81
—
—
0.47 / 0.47
105 / 95
8.0 / 8.6
1,790 / 1,740
8.0 / 8.6
—
—
Rating
Conditions
Cooling
0.40 / 0.40
90 / 81
7.8 / 7.1
1,800 / 1,470
—
0.47 / 0.47
105 / 95
15.8 / 15.7
3,590 / 3,220
—
Rating
Conditions
Heating
W
A
1,790 / 1,750
—
Locked-Rotor Amperes
0.45 / 0.40
0.71 / 0.64
Remarks: Rating conditions are:
Cooling: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Heating: Outside air temperature 47°F DB/43°F WB
Indoor unit entering air temperature 70°F WB
WM–700796
9
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G Electric Wiring Diagram
WARNING:
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
Indoor Unit: KHS1822
Terminal plate
Thermistor
Transformer
1
2
3
4
BLK
WHT
ORG
YEL
S
P
Noise
filter
3 1
3 1
3 2 1
3 2 1
1 2
1 2
1 2
1 2
1 1
2 2
G
SG-OUT 3P
SUP
HR
2P
2P
TH1
TH2
1 1
2 2
BLU
2P
1 1
2 2
4
3
5
6
2
Heater
relay
1 RY
2P
CONTROLLER
2 2
1 1
Switch
assy
H. THERMO
2 2
1 1
FM H M
L
LL
1
9
2 1
2 1
1
1
9
9
1 2
1 2
YEL
YEL
Connector
1 2
1 2
Switch
assy
1 2 3
1 2 3
4
4
1 2
1 2
Receiver
assy
Louver
motor
LM
Thermo
fuse
Thermostat
BRN
PNK
FM
Resistor
Heater assy
GRN
Fan
motor
G
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Outdoor Unit: CH1822
WARNING:
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
Solenoid
coil
Connector
Power transformer
BLK
BLK
1 1
2 2
PNK
BLK
WHT
SC
P
S
WHT
Noise filter
BLK
BRN
BRN
TH1
TH2
TH3
1 2
1 2
1 2
1 2
Terminal
plate
WHT
Thermistor (coil)
2P
PRY
2P
SEC
1 1
2 2
SC1 SC2
BLK
BLK
1
1 1
2P
2 2 SUP
2
3
4
5
6
WHT
ORG
YEL
Thermistor (air temp)
1 1
3 3
SG-IN
1 1
2 2
BLK
BLK
BLK
CONTROLLER
Thermistor (discharge)
BLK
BLK
WHT
1 1
2 2
G
1 1
2 2
LO
PRS
HI
PRS
1 2
RED
CT
2P
CM
1 2
1 2
H FM
L
1 2
Power
relay
BLU
Crank case
heater
COM
Capacitor
Connector
NC
NO
Starting
relay
GRY
6 5 4 3 2 1
6 5 4 3 2 1
1
3
RED
2
C
BLK
Compressor
motor
FM
CM
Fan motor
R
S
BLK
BLK
BLK
Capacitor
Capacitor
WHT
WHT
WM–700796
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For parts or service contact
SFS Corporation: 1200 West Artesia Blvd., Compton, California 90220
CORPORATION
In Canada
SANYO Canada Inc.: Toronto, Ont. M4H 1M6
H408/12M
Printed in U.S.A.
WM–700796
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