Sanyo KMH0922 User manual

SERVICE MANUAL (Basic Information)

CMH1822 / KMH0922 (✕2)

SPLIT SYSTEM AIR CONDITIONER

8526481017400 REFERENCE NO. WM–700700

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

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

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

(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

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

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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