Sanyo KMS1812, CM3212, KMS0712 User Manual

4 (2)

SERVICE MANUAL (Basic Information)

CM3212 / KMS0712 ( 2)+KMS1812

SPLIT SYSTEM AIR CONDITIONER

Indoor Unit

Outdoor Unit

CM3212

KMS0712

KMS1812

8526481017300

REFERENCE NO. WM–700699

W

SERVICE MANUAL

CM3212 / KMS0712(×2)+KMS1812

(Basic Information)

ii WM–700699

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

DANGER:

WARNING:

CAUTION:

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.

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.

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.

…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.

iii WM–700699

 

 

 

Table of Contents

 

 

 

Page

1.

OPERATING RANGE...............................................................................................................................

1

2.

SPECIFICATIONS ....................................................................................................................................

2

 

Unit Specifications .......................................................................................................................................

2

 

Applicable Indoor Unit.................................................................................................................................

3

3.

DIMENSIONAL DATA..............................................................................................................................

5

4.

COOLING CAPACITY .............................................................................................................................

7

5.

REFRIGERANT FLOW DIAGRAM.......................................................................................................

11

6.

ELECTRICAL DATA ................................................................................................................................

12

 

Electrical Characteristics .......................................................................................................................

12

 

Electrical Wiring Diagram.....................................................................................................................

14

iv WM –700699

1. OPERATING RANGE

CM3212 / KMS0712(×2)+KMS1812

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

 

 

 

1 WM –700699

Sanyo KMS1812, CM3212, KMS0712 User Manual

2. SPECIFICATIONS

Unit Specifications

Outdoor unit

Model No.

Applicable indoor unit

 

Performance

No. of indoor units

 

kW

 

 

 

 

 

 

Capacity

 

BTU/h

 

 

 

 

 

 

Phase, Frequency

 

Hz

 

Rating

Voltage rating

 

V

 

Available voltage range

 

V

 

 

 

 

Electrical

Running amperes

 

A

 

Power input

 

W

 

 

 

 

 

Power factor

 

%

 

 

Starting amperes

 

A

 

 

S. E. E. R.

 

BTU/Wh

 

 

Fan speeds

 

 

 

 

Compressor … number

 

 

 

 

Refrigerant amount charged at shipment

lbs. (kg)

 

 

Refrigerant control

 

 

 

 

Operation sound (Outdoor unit)

dB-A

 

Features

Refrigerant tubing connections

 

 

Max. allowable tubing length at shipment

ft. (m)

 

 

 

 

Limit of tubing length

 

ft. (m)

 

 

Limit of elevation difference

ft. (m)

 

 

between the 2 units

 

 

 

 

Refrigerant tube o.d.

Narrow tube

in. (mm)

 

 

Wide tube

in. (mm)

 

 

 

 

 

Refrigerant tube kit

 

 

 

 

Height

 

in. (mm)

&

 

Width

 

in. (mm)

Dimensions

Weight

 

Depth

 

in. (mm)

 

 

 

 

 

Net weight

 

lbs. (kg)

 

 

Shipping volume

 

cu. ft. (cu. m)

 

 

Shipping weight (Approx.)

lbs. (kg)

CM3212

KMS0712, KMS1812

Cooling

1 unit – A

1 unit – B

2 units – A + A

2 units – A + B

3 units – A + A + B

7,000

/ 7,000

18,000

/ 18,000

14,000

/ 14,000

25,000

/ 25,000

32,000

/ 32,000

2.05

/ 2.05

5.27

/ 5.27

4.10

/ 4.10

7.33

/ 7.33

9.38

/ 9.38

Single, 60

Single, 60

Single, 60

Single, 60

Single, 60

230

/ 208

230

/ 208

230

/ 208

230

/ 208

230

/ 208

187 to 253

187 to 253

187 to 253

187 to 253

187 to 253

3.3

/ 3.5

8.9

/ 9.5

6.7

/ 7.2

11.8

/ 12.6

15.0

/ 16.0

750

/ 720

2,000

/ 1,950

1,540

/ 1,490

2,700

/ 2,600

3,400

/ 3,300

99

/ 99

99

/ 99

99

/ 99

99

/ 99

99

/ 99

24

56

24 × 2

24 + 56

24 × 2 + 56

10.0

/ 10.0

10.0

/ 10.0

10.0

/ 10.0

10.0

/ 10.0

10.0

/ 10.0

 

 

 

 

Automatic (2)

 

 

 

 

Rotary, 500 W … 2 / 1,400 W … 1

R-22: 1.83 × 2 (0.83 × 2) / 4.14 (1.88)

Capillary tube

62 Flare type

33 (10)

7,000 BTU: 50 (15) / 18,000 BTU: 65 (20)

23 (7)

1/4 (6.35)

7,000 BTU: 3/8 (9.52) / 18,000 BTU: 1/2 (12.7)

Optional

32-1/16 (815)

26-3/8 (670)

26-3/8 (670)

220(99)

19.5(0.552)

242 (110)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB

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

2 WM–700699

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