Sanyo KMH0922 User manual

SERVICE MANUAL (Basic Information)
CMH1822 / KMH0922 (✕2)
SPLIT SYSTEM AIR CONDITIONER
8526481017400 REFERENCE NO. WM–700700
W
Indoor Unit Outdoor Unit
CMH1822
KMH0922
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ii WM– 700700
SERVICE MANUAL
CMH1822 / KMH0922 (×2)
(Basic Information)
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WM– 700700
IMPORTANT!
Please Read Before Starting
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.
For safe installation and trouble-free operation, you must:
●Carefully read this instruction booklet before beginning
●Follow each installation or repair step exactly as shown
●Observe all local, state, and national electrical codes
●Pay close attention to all danger, warning, and caution
notices given in this manual
This symbol warns of an imme-
diate hazard which will result in
severe personal injury or death.
This symbol refers to a hazard or
unsafe practice which can result
in severe personal injury or
death.
This symbol refers to a hazard
or unsafe practice which can
result in personal injury or prod-
uct or property damage.
If Necessary, Get Help
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.
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.
SPECIAL PRECAUTIONS
When Wiring
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.
• 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.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause over-
heating at connection points and a possible fire hazard.
When Transporting
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.
When Installing…
…In a Ceiling or Wall
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.
…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.
…In Moist or Uneven Locations
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.
…In an Area with High Winds
Securely anchor unit down with bolts and metal frame.
Provide a suitable air baffle.
…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.
When Connecting Refrigerant Tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• 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.
• 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.”
When Servicing
• Turn the power OFF at the main power box (mains)
before opening the unit to check or repair electrical parts.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after you finish, remembering to check
that no scraps or bits of wiring have been left inside the
unit being serviced.
DANGER:
WARNING:
CAUTION:
iii
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Table of Contents
Page
1. OPERATING RANGE............................................................................................................................... 1
2. SPECIFICATIONS .................................................................................................................................... 2
Unit Specifications ....................................................................................................................................... 2
Applicable Indoor Unit................................................................................................................................. 3
3. DIMENSIONAL DATA ............................................................................................................................. 4
4. COOLING CAPACITY............................................................................................................................. 5
5. HEATING CAPACITY.............................................................................................................................. 7
6. REFRIGERANT FLOW DIAGRAM ...................................................................................................... 9
7. ELECTRICAL DATA................................................................................................................................10
●Electrical Characteristics....................................................................................................................... 10
●Electrical Wiring Diagram..................................................................................................................... 11
iv WM–700700
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1WM–700700
1. OPERATING RANGE
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
Maximum 95°F DB / 71°F WB 115°F DB
Minimum 67°F DB / 57°F WB 67°F DB
CMH1822 / KMH0922 (×2)
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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 DB
Model No. Outdoor unit CMH1822
Applicable indoor unit KMH0922
No. of indoor units
Capacity BTU/h
kW
Phase, Frequency Hz
Voltage rating V
Available voltage range V
Running amperes A
Power input W
Power factor %
Starting amperes A
S. E. E. R. (H. S. P. F.) BTU/Wh
Fan speeds 1
Compressor … number Rotary … 2
Refrigerant amount charged at shipment lbs. (kg) R-22: 2.34 (1.06) ×2
Refrigerant control Capillary tube
Operation sound (Outdoor unit) dB-A 54
Refrigerant tubing connections Flare type
Max. allowable tubing length at shipment ft. (m) 33 (10)
Limit of tubing length ft. (m) 50 (15)
Limit of elevation difference ft. (m) 23 (7)
between the 2 units
Refrigerant tube o.d. Narrow tube in. (mm) 1/4 (6.35)
Wide tube in. (mm) 3/8 (9.52)
Refrigerant tube kit Optional
Height in. (mm) 24-13/16 (630)
Width in. (mm) 32-11/16 (830)
Depth in. (mm) 12-13/32 (315)
Net weight lbs. (kg) 134 (60.8)
Shipping volume cu. ft. (cu. m) 10.3 (0.96)
Shipping weight (Approx.) lbs. (kg) 140.8 (64)
Performance
Electrical Rating
Features
Dimensions &
Weight
2. SPECIFICATIONS
Unit Specifications
1 unit (Cooling)
8,800 / 8,700
2.58 / 2.55
Single, 60
230 / 208
187 to 253
4.1 / 4.3
900 / 870
95 / 97
27
10.0 / 10.0
1 unit (Heating)
10,000 / 9,800
2.93 / 2.87
Single, 60
230 / 208
187 to 253
4.1 / 4.3
900 / 870
95 / 97
27
(7.0 / 7.0)
2 units (Cooling)
16,800 / 16,300
4.92 / 4.78
Single, 60
230 / 208
187 to 253
8.2 / 8.7
1,820 / 1,780
95 / 97
27 ×2
10.0 / 10.0
2 units (Heating)
19,000 / 18,000
5.57 / 5.27
Single, 60
230 / 208
187 to 253
7.5 / 7.9
1,640 / 1,590
95 / 97
27 ×2
(7.0 / 7.0)
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3WM–700700
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
Model No. KMH0922
Type Wall-mounted
Cooling Heating
Capacity BTU/h 8,800 / 8,700 10,000 / 9,800
kW 2.58 / 2.55 2.93 / 2.87
Air circulation (High) cu. ft./min. 220 / 210
Moisture removal (High) pints/h 2.2
Phase, Frequency Hz Single, 60
Voltage rating V 230 / 208
Available voltage range V 187 to 253
Heat element kW – HSPF — 1.0 / 0.82 – 6.6 / 6.6
Controls Microprocessor
Control unit Remote control unit
Temperature control IC thermostat
Timer ON/OFF 12-hours
Fan speeds 3
Air deflector Horizontal / Vertical Manual / Manual
Air filter Washable, easy access
Operation sound Hi / Me / Lo dB-A 40 / 35 / 30
Refrigerant tubing connections Flare type
Refrigerant tube o.d. Narrow tube in. (mm) 1/4 (6.35)
Wide tube in. (mm) 3/8 (9.52)
Refrigerant tube kit Optional
Accessories Mounting bracket
Height in. (mm) 13-19/32 (345)
Width in. (mm) 31-1/2 (800)
Depth in. (mm) 7-3/32 (180)
Net weight lbs. (kg) 24 (11)
Shipping volume cu. ft. (cu. m) 3.3 (0.093)
Shipping weight lbs. (kg) 29 (13)
Performance
Electrical
Rating
Features
Dimensions &
Weight
Applicable Indoor Unit
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WM–700700
4
3. DIMENSIONAL DATA
Outdoor Unit: CMH1822
Indoor Unit: KMH0922
O.D. 3/8" wide tubing service valve
2-9/32
3-3/4
11-7/32
1-3/162-1/432-11/16
3/4
24-13/16
Air discharge
Air
intake
Air intake
21-3/16 5-3/4
12-3/12
13-1/4
4 ×15/32 dia. hole
O.D. 1/4" narrow tubing service valve
O.D. 3/8" wide tubing service valve
O.D. 1/4" narrow tubing service valve
High pressure gauge port
Unit A
Unit B
2-9/32
2-9/32
31-1/2 7-3/32 7-11/64 17-23/32
Rear panel
(center point
of gravity)
6-23/32
13-19/32
1-49/64
3-3/4
15/32
1-49/64
1-3/8 5-1/2
1-49/64
Center of
tubing hole
(for right
rear)
O.D. 3/8" wide tubing
O.D. 1/4" narrow tubing
Drain hose O.D. 23/32
1-5/8
2-23/64 25/32
7-7/8
Remote
control unit
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4. COOLING CAPACITY
230V
CMH1822 / KMH0922 (×1)
5WM–700700
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
Rating Capacity: 8,800 BTU/H Air Flow Rate: 220 CFM
Evaporator Condenser
Ent. Temp. °F/(°C) Ambient Temp. °F/(°C)
WB DB 75 85 95 105 115
(23.9) (29.4) (35.0) (40.6) (46.1)
TC 8,710 8,320 7,920 7,470 6,860
kW 0.62 0.67 0.73 0.79 0.87
59 72 (22.2) SHC 6,200 5,990 5,790 5,560 5,260
(15.0) 76 (24.4) SHC 6,940 6,740 6,530 6,300 6,000
80 (26.7) SHC 7,720 7,510 7,310 7,080 6,780
84 (28.9) SHC 8,460 8,250 7,920 7,470 6,860
88 (31.1) SHC 8,710 8,320 7,920 7,470 6,860
TC 9,010 8,730 8,390 7,930 7,300
kW 0.62 0.68 0.74 0.81 0.89
63 72 (22.2) SHC 5,260 5,120 4,960 4,740 4,460
(17.2) 76 (24.4) SHC 6,000 5,860 5,700 5,490 5,200
80 (26.7) SHC 6,780 6,640 6,480 6,260 5,970
84 (28.9) SHC 7,520 7,380 7,220 7,000 6,720
88 (31.1) SHC 8,260 8,120 7,960 7,740 7,300
TC 9,260 9,110 *8,800 8,320 7,740
kW 0.63 0.69 0.75 0.82 0.91
67 72 (22.2) SHC 4,280 4,220 4,080 3,870 3,630
(19.4) 76 (24.4) SHC 5,020 4,960 4,820 4,610 4,370
80 (26.7) SHC 5,800 5,730 5,600 5,390 5,150
84 (28.9) SHC 6,540 6,470 6,340 6,130 5,890
88 (31.1) SHC 7,280 7,220 7,080 6,870 6,630
TC 9,550 9,390 9,150 8,740 8,230
kW 0.63 0.69 0.76 0.84 0.93
71 72 (22.2) SHC 3,280 3,220 3,120 2,960 2,760
(21.7) 76 (24.4) SHC 4,020 3,960 3,860 3,700 3,510
80 (26.7) SHC 4,800 4,730 4,640 4,480 4,280
84 (28.9) SHC 5,540 5,470 5,380 5,220 5,020
88 (31.1) SHC 6,280 6,220 6,120 5,960 5,760
TC 9,730 9,630 9,420 9,080 8,710
kW 0.65 0.71 0.77 0.86 0.95
75 76 (24.4) SHC 3,020 2,980 2,910 2,790 2,660
(23.9) 80 (26.7) SHC 3,790 3,760 3,680 3,560 3,430
84 (28.9) SHC 4,540 4,500 4,420 4,300 4,180
88 (31.1) SHC 5,280 5,240 5,160 5,050 4,920
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