Sanyo CMH1822, KMH0922 User Manual

SERVICE MANUAL (Basic Information)

W

CMH1822 / KMH0922 (✕ 2)

SPLIT SYSTEM AIR CONDITIONER

Indoor Unit Outdoor Unit

KMH0922

CMH1822

8526481017400 REFERENCE NO. WM–700700

SERVICE MANUAL

CMH1822 / KMH0922 (×2)

(Basic Information)

ii

WM– 700700

IMPORTANT!

DANGER:

WARNING:

CAUTION:

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 imme­diate 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.

• Connect all wiring tightly. Loose wiring may cause over­heating at connection points and a possible fire hazard.

When Transporting

Be careful when picking up and moving the indoor and out­door 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.

This symbol refers to a hazard
or unsafe practice which can
result in personal injury or prod­uct 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 PER­SONAL 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 tub­ing are completed or reconnected and checked.

• Highly dangerous electrical voltages are used in this sys­tem. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and inad­equate grounding can cause accidental injury or death.

• Ground the unit following local electrical codes.

…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.

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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

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1. OPERATING RANGE

CMH1822 / KMH0922 (×2)

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

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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)

Applicable Indoor Unit

Model No. KMH0922
Type Wall-mounted

Cooling Heating

Capacity
Air circulation (High) cu. ft./min. 220 / 210

Performance

Moisture removal (High) pints/h 2.2
Phase, Frequency Hz Single, 60
Voltage rating V 230 / 208

Electrical

Heat element kW – HSPF — 1.0 / 0.82 – 6.6 / 6.6

Available voltage range V 187 to 253

Rating

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

Features

Operation sound Hi / Me / Lo dB-A 40 / 35 / 30
Refrigerant tubing connections Flare type

Refrigerant tube o.d.
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)

Weight

Shipping volume cu. ft. (cu. m) 3.3 (0.093)

Dimensions &

Shipping weight lbs. (kg) 29 (13)

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

Narrow tube in. (mm) 1/4 (6.35)
Wide tube in. (mm) 3/8 (9.52)

BTU/h 8,800 / 8,700 10,000 / 9,800

kW 2.58 / 2.55 2.93 / 2.87

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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3. DIMENSIONAL DATA

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

Outdoor Unit: CMH1822

Indoor Unit: KMH0922

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4. COOLING CAPACITY

230V
CMH1822 / KMH0922 (×1)

Rating Capacity: 8,800 BTU/H Air Flow Rate: 220 CFM

Evaporator Condenser

Ent. Temp. °F/(°C) Ambient Temp. °F/(°C)

WB DB

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

75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

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

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208V
CMH1822 / KMH0922 (×1)

Rating Capacity: 8,700 BTU/H Air Flow Rate: 210 CFM

Evaporator Condenser

Ent. Temp. °F/(°C) Ambient Temp. °F/(°C)

WB DB

TC 8,610 8,220 7,830 7,390 6,790

kW 0.61 0.66 0.72 0.78 0.86

59 72 (22.2) SHC 6,090 5,880 5,680 5,450 5,150

(15.0) 76 (24.4) SHC 6,800 6,590 6,390 6,160 5,860

80 (26.7) SHC 7,550 7,340 7,130 6,910 6,610
84 (28.9) SHC 8,260 8,050 7,830 7,390 6,790
88 (31.1) SHC 8,610 8,220 7,830 7,390 6,790

TC 8,910 8,630 8,290 7,840 7,220

kW 0.61 0.67 0.73 0.80 0.88

63 72 (22.2) SHC 5,180 5,040 4,870 4,660 4,370

(17.2) 76 (24.4) SHC 5,890 5,750 5,590 5,370 5,090

80 (26.7) SHC 6,630 6,500 6,330 6,120 5,830
84 (28.9) SHC 7,350 7,210 7,050 6,830 6,550
88 (31.1) SHC 8,060 7,930 7,760 7,550 7,220

TC 9,150 9,000 *8,700 8,220 7,660

kW 0.62 0.68 0.74 0.81 0.90

67 72 (22.2) SHC 4,230 4,160 4,030 3,820 3,580

(19.4) 76 (24.4) SHC 4,940 4,870 4,740 4,530 4,290

80 (26.7) SHC 5,690 5,620 5,490 5,280 5,040
84 (28.9) SHC 6,400 6,330 6,200 5,990 5,750
88 (31.1) SHC 7,110 7,050 6,910 6,700 6,460

TC 9,440 9,280 9,050 8,640 8,130

kW 0.62 0.68 0.75 0.83 0.91

71 72 (22.2) SHC 3,250 3,190 3,100 2,940 2,740

(21.7) 76 (24.4) SHC 3,970 3,900 3,810 3,650 3,450

80 (26.7) SHC 4,710 4,650 4,560 4,400 4,200
84 (28.9) SHC 5,430 5,360 5,270 5,110 4,910
88 (31.1) SHC 6,140 6,080 5,980 5,820 5,630

TC 9,620 9,520 9,310 8,980 8,610

kW 0.64 0.70 0.76 0.85 0.94

75 76 (24.4) SHC 3,000 2,960 2,880 2,760 2,640

(23.9) 80 (26.7) SHC 3,740 3,700 3,630 3,510 3,380

84 (28.9) SHC 4,450 4,420 4,340 4,220 4,090
88 (31.1) SHC 5,170 5,130 5,050 4,940 4,810

75 85 95 105 115

(23.9) (29.4) (35.0) (40.6) (46.1)

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

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5. HEATING CAPACITY

Indoor Entering Air Temperature 70°F

Temperature of Air Entering Outdoor Coil

(°F D.B. at 75% RH)

Heating Capacity (BTU/h)

30,000

25,000

20,000

15,000

10,000

5,000

23

(–5)

32
(0)

41
(5)

50 59

(15)

68

(20)

75°F

(23.7°C)

47

(8.3)

13,100

Heat-pump with back-up heater

Heat-pump capacity

17

(–8.3)

1 Phase 60Hz 230V Model Name: CMH1822 / KMH0922 (×1)

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1 Phase 60Hz 208V Model Name: CMH1822 / KMH0922 (×1)

Indoor Entering Air Temperature 70°F

Temperature of Air Entering Outdoor Coil

(°F D.B. at 75% RH)

Heating Capacity (BTU/h)

30,000

25,000

20,000

15,000

10,000

5,000

23

(–5)

32
(0)

41
(5)

50 59

(15)

68

(20)

75°F

(23.7°C)

47

(8.3)

9,800

12,300

Heat-pump with back-up heater

Heat-pump capacity

17

(–8.3)

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Heat exchanger

Narrow tube
O. D.
1/4"
(6.35mm)

Wide tube
O.D.
3/8"
(9.52mm)

Service
valve

Muffler

Accumulator

Compressor A

Reversing
valve

Service valve

Dehydrator

Capillary
tube

( )

Check valve

Strainer

Heat exchanger

Narrow tube
O.D.
1/4"
(6.35mm)

Wide tube
O.D.
3/8"
(9.52mm)

Service
valve

Muffler

Accumulator

Compressor B

Reversing
valve

Service valve

Dehydrator

Capillary
tube

( )

Check valve

Strainer

Capaillary

tube

Heat exchanger

Check
port B

Check
port A

Indoor Unit A

Indoor Unit B

Heat exchanger

Narrow tube
O.D.
1/4"
(6.35mm)

Wide tube
O.D.
3/8"
(9.52mm)

Service
valve

Muffler

Accumulator

Compressor A

Reversing
valve

Service valve

Dehydrator

Capillary
tube

( )

Check valve

Strainer

Heat exchanger

Narrow tube
O.D.
1/4"
(6.35mm)

Wide tube
O.D.
3/8"
(9.52mm)

Service
valve

Muffler

Accumulator

Compressor B

Reversing
valve

Service valve

Dehydrator

Capillary
tube

( )

Check valve

Strainer

Capaillary

tube

Heat exchanger

Check
port B

Check
port A

Indoor Unit A

Indoor Unit B

6. REFRIGERANT FLOW DIAGRAM

Cooling Cycle

Heating Cycle

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7. ELECTRICAL DATA

● Electrical Characteristics
CMH1822 / KMH0922 (×1)

Performance at
230/208V – 1ø – 60Hz

Cooling

Heating

Locked-Rotor Amperes A 0.19 / 0.18 — 0.71 / 0.64 27 — —

Remarks: Rating conditions are:

Rating
Conditions

Rating
Conditions

Cooling: Outside air temperature 95°F DB/75°F WB

Heating: Outside air temperature 47°F DB/43°F WB

A 0.15 / 0.14 — 0.52 / 0.52 3.43 / 3.64 4.1 / 4.3 —

W 34 / 29 — 116 / 104 750 / 737 900 / 870 —

A 0.15 / 0.14 4.35 / 3.93 0.52 / 0.52 3.43 / 3.64 4.1 / 4.3 8.45 / 8.23

W 34 / 29 1,000 / 818 116 / 104 750 / 737 900 / 870

Indoor unit entering air temperature 80°F DB/67°F WB

Indoor unit entering air temperature 70°F WB

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Max. Heat Fan Motor Compressor Heat-pump Max. Heat

CMH1822 / KMH0922 (×2)

Performance at
230/208V – 1ø – 60Hz

Cooling

Heating

Locked-Rotor Amperes A

Rating
Conditions

Rating
Conditions

A 0.30 / 0.28 — 0.52 / 0.52 7.38 / 7.90 8.2 / 8.7 —

W 68 / 58 — 116 / 104 1,636 / 1,618 1,820 / 1,780 —

A 0.30 / 0.28 8.70 / 7.86 0.52 / 0.52 6.68 / 7.10 7.5 / 7.9 16.2 / 15.76

W 68 / 58 2,000 / 1,636 116 / 104 1,456 / 1,428 1,640 / 1,590 3,640 / 3,226

0.19 × 2 / 0.18 × 2

Indoor Unit Outdoor Unit Complete Unit

Fan Motor Max. Heat Fan Motor Compressor Heat-pump Max. Heat

— 0.71 / 0.64 27 × 2— —

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

10

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● Electrical Wiring Diagram

CMA

S

C

R

BLK

RED

Compressor

motor A

PTC. A

WHT

BLK WHT

OLR. A

CMB

R

C

S

RED

Compressor

motor B

WHT

OLR. B

BLK WHT

BLK

PTC. B

BLK

1

2

7

6

5

4

3

2

1

3

4

12

3

4

12

121

2

CONTROLLER

S. CB

RED
RED

YEL

YEL

121

2

S. CB

S. CB

S. CA

RED
RED

WHT

WHT

121

2

S. CA

S. CA

WHT
GRY

GRY

WHT

121

2

FMG

FMO

BRN
PNK

PNK

BRN

121

2

YEL

G

BLK

WHT

GRY

VLT

BLU

GB

FMB

SVB

CMB

24B

GA

FMA

SVA

CMA

24A

7

6

5

4

3

2

1

PNK

YEL

ORG

RED

BRN

Terminal
plate

RED

RED

BLK

Power supply

Terminal
plate

7PB

Control supply

TO INDOOR UNIT

7PA

Control supply

TO INDOOR UNIT

Terminal
plate

BLK

RED

BLK

REDGRN

(GRN/YEL)

GRN

(GRN/YEL)

SA

SA

RED

RED

BLK

RED

Power relay A

Power relay B

RED

BLU

ORG

BLU

ORG

PA1 PB2

PB1 PA2

FU Supply

CS

Capacitor A

BLK

BLU

(BLU)

(RED)

(WHT)

(GRN)

Capacitor B

Capacitor F

BLK

BLK

Thermistor

Fan motor

Solenoid

coil A

Solenoid

coil B

FM

A

B

WARNING:

To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.

Outdoor Unit: CMH1822

11

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Indoor Unit: KMH0922

1

121

2

1
1

12
12

225544331

1

55443311226

6

Thermistor

2P
Supply

CONTROLLER

Remote
control
switch

Fan
motor

FM

2

3

121

2

BRN

PNK

GRY

YEL

WHT

VLT

GRY

ORG

WHT

VLT

Capacitor

PNK

BRN

121

2

WHT

WHT

PS

Transformer

BRN

Terminal plate

FROM OUTDOOR UNIT

GRN

G

G

BRN

554433221

1

YEL

YEL

1
1 2

WHT

WHT

112233445

5

121

2

4

5

6

7

112

2

Control linePower line

BRN

ORG

YEL

PNK

2P
HR

2

2P
TH

5P
Unit

5P FM

REMOCON 2REMOCON

1

SEC

2P

PRY

2P

Heater
assy

Thermo
fuse

Thermostat

Connector

Heater
relay

WHT

BLK

43

21

5

RY

WHT

BLK

Connector

WHT

RED

BLK

ORG

6

BLU

g

WARNING:

To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleanin

any electrical parts.

12

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For parts or service contact

SFS Corporation: 1200 West Artesia Blvd., Compton, California 90220

Printed in U.S.A.

CORPORATION

1991/Nov./12M

SANYO Canada Inc.: Toronto, Ont. M4H 1M6In Canada

H407/12M Printed in U.S.A.

WM– 700700