Sanyo KMS1812 User manual

SERVICE MANUAL (Basic Information)
CM3212 / KMS0712 (✕2)+KMS1812
SPLIT SYSTEM AIR CONDITIONER
8526481017300 REFERENCE NO. WM–700699
W
Indoor Unit Outdoor Unit
CM3212
KMS0712
KMS1812
92-131 S/M (Basic) 2/21/01 4:49 PM Page A

92-131 S/M (Basic) 2/21/01 4:49 PM Page B

ii WM–700699
SERVICE MANUAL
CM3212 / KMS0712(×2)+KMS1812
(Basic Information)
92-131 S/M (Basic) 2/21/01 4:49 PM Page ii

WM– 700699
iii
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:
92-131 S/M (Basic) 2/21/01 4:49 PM Page iii

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
92-131 S/M (Basic) 2/21/01 4:49 PM Page iv

1WM–700699
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
CM3212 / KMS0712(×2)+KMS1812
92-131 S/M (Basic) 2/21/01 4:49 PM Page 1

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
2WM – 700699
Model No. Outdoor unit CM3212
Applicable indoor unit KMS0712, KMS1812
Cooling
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. BTU/Wh
Fan speeds Automatic (2)
Compressor … number Rotary, 500 W … 2 / 1,400 W … 1
Refrigerant amount charged at shipment lbs. (kg) R-22: 1.83 × 2 (0.83 ×2) / 4.14 (1.88)
Refrigerant control Capillary tube
Operation sound (Outdoor unit) dB-A 62
Refrigerant tubing connections Flare type
Max. allowable tubing length at shipment ft. (m) 33 (10)
Limit of tubing length ft. (m) 7,000 BTU: 50 (15) / 18,000 BTU: 65 (20)
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) 7,000 BTU: 3/8 (9.52) / 18,000 BTU: 1/2 (12.7)
Refrigerant tube kit Optional
Height in. (mm) 32-1/16 (815)
Width in. (mm) 26-3/8 (670)
Depth in. (mm) 26-3/8 (670)
Net weight lbs. (kg) 220 (99)
Shipping volume cu. ft. (cu. m) 19.5 (0.552)
Shipping weight (Approx.) lbs. (kg) 242 (110)
Performance
Electrical Rating
Features
Dimensions &
Weight
2. SPECIFICATIONS
Unit Specifications
1 unit – A
7,000 / 7,000
2.05 / 2.05
Single, 60
230 / 208
187 to 253
3.3 / 3.5
750 / 720
99 / 99
24
10.0 / 10.0
1 unit – B
18,000 / 18,000
5.27 / 5.27
Single, 60
230 / 208
187 to 253
8.9 / 9.5
2,000 / 1,950
99 / 99
56
10.0 / 10.0
2 units – A + A
14,000 / 14,000
4.10 / 4.10
Single, 60
230 / 208
187 to 253
6.7 / 7.2
1,540 / 1,490
99 / 99
24 ×2
10.0 / 10.0
2 units – A + B
25,000 / 25,000
7.33 / 7.33
Single, 60
230 / 208
187 to 253
11.8 / 12.6
2,700 / 2,600
99 / 99
24 + 56
10.0 / 10.0
3 units – A + A + B
32,000 / 32,000
9.38 / 9.38
Single, 60
230 / 208
187 to 253
15.0 / 16.0
3,400 / 3,300
99 / 99
24 ×2 + 56
10.0 / 10.0
92-131 S/M p.2 Table 2/21/01 4:55 PM Page 2

3WM–700699
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
Model No. KMS0712
Type Wall-mounted
Cooling
Capacity BTU/h 7,000 / 7,700
kW 2.05 / 2.05
Air circulation (High) cu. ft./min. 220 / 210
Moisture removal (High) pints/h 2.2 / 2.1
Phase, Frequency Hz Single, 60
Voltage rating V 230 / 208
Available voltage range V 187 to 253
Controls Microprocessor
Control unit Wireless remote control unit
Temperature control IC thermostat
Timer ON/OFF 24-hours & Program
Fan speeds 3
Air deflector Horizontal / Vertical Manual / Manual
Air filter Washable, easy access
Operation sound Hi / Me / Lo dB-A 45 / 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 Hanging wall 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
92-131 S/M (Basic) 2/21/01 4:49 PM Page 3

4WM–700699
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
Model No. KMS1812
Type Wall-mounted
Cooling
Capacity BTU/h 18,000 / 17,600
kW 5.27 / 5.16
Air circulation (High) cu. ft./min. 440 / 420
Moisture removal (High) pints/h 5.3 / 5.2
Phase, Frequency Hz Single, 60
Voltage rating V 230 / 208
Available voltage range V 187 to 253
Controls Microprocessor
Control unit Wireless remote control unit
Temperature control IC thermostat
Timer ON/OFF 24-hours & Program
Fan speeds 3
Air deflector Horizontal / Vertical Manual / Manual
Air filter Washable, easy access
Operation sound Hi / Me / Lo dB-A 47 / 44 / 40
Refrigerant tubing connections Flare type
Refrigerant tube o.d. Narrow tube in. (mm) 1/4 (6.35)
Wide tube in. (mm) 1/2 (12.7)
Refrigerant tube kit Optional
Accessories Hanging wall bracket
Height in. (mm) 14-3/16 (360)
Width in. (mm) 38-31/32 (990)
Depth in. (mm) 7-25/32 (198)
Net weight lbs. (kg) 30 (13.5)
Shipping volume cu. ft. (cu. m) 4.8 (0.136)
Shipping weight lbs. (kg) 37 (17)
Performance
Electrical
Rating
Features
Dimensions &
Weight
Applicable Indoor Unit
92-131 S/M (Basic) 2/21/01 4:49 PM Page 4

WM–700699
5
3. DIMENSIONAL DATA
Outdoor Unit: CM3212
Air intake 21/32
Air intake Air intake
21/32
25-1/16
26-3/8
21/32
26-3/8
25-1/16
4 ×15/32 dia. hole for fixing
26-7/32
Air dischange
1/4" narrow tubing service valve
1/2" wide tubing service valve
32-1/16 28-1/32
5-7/16
5-3/8
3-5/32 2-3/4 5-1/4
26-7/32
3/8" wide tubing service valve
92-131 S/M (Basic) 2/21/01 4:49 PM Page 5

6WM–700699
Indoor Unit: KMS0712
Indoor Unit: KMS1812
Wireless remote
control unit
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
6-7/64
2-13/64 19/32
38-31/32
14-3/16
7-25/32
Rear panel
(Center point of gravity)
Drain hose O.D. 1-1/4
Narrow tube O.D. 1/4"
Wide tube O.D. 1/2"
Center of
tubing hole
(For right rear)
5-19/32
1-61/64
Wireless remote
control unit
6-7/64
2-13/64 19/32
92-131 S/M (Basic) 2/21/01 4:49 PM Page 6

4. COOLING CAPACITY
230V
CM3622 / KMS0712×1
7WM–700699
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: 7,000 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 6,930 6,620 6,300 5,940 5,460
kW 0.48 0.52 0.57 0.61 0.67
59 72 (22.2) SHC 5,290 5,130 4,980 4,810 4,590
(15.0) 76 (24.4) SHC 6,030 5,880 5,730 5,560 5,330
80 (26.7) SHC 6,810 6,620 6,300 5,940 5,460
84 (28.9) SHC 6,930 6,620 6,300 5,940 5,460
88 (31.1) SHC 6,930 6,620 6,300 5,940 5,460
TC 7,170 6,940 6,670 6,310 5,810
kW 0.48 0.53 0.57 0.62 0.69
63 72 (22.2) SHC 4,390 4,290 4,170 4,010 3,800
(17.2) 76 (24.4) SHC 5,130 5,030 4,910 4,750 4,540
80 (26.7) SHC 5,910 5,810 5,690 5,530 5,320
84 (28.9) SHC 6,650 6,550 6,430 6,270 5,810
88 (31.1) SHC 7,170 6,940 6,670 6,310 5,810
TC 7,360 7,250 *7,000 6,620 6,610
kW 0.48 0.53 0.58 0.63 0.70
67 72 (22.2) SHC 3,470 3,420 3,320 3,170 2,990
(19.4) 76 (24.4) SHC 4,210 4,160 4,060 3,910 3,730
80 (26.7) SHC 4,990 4,940 4,840 4,680 4,510
84 (28.9) SHC 5,730 5,680 5,580 5,430 5,250
88 (31.1) SHC 6,470 6,420 6,320 6,170 5,990
TC 7,600 7,470 7,280 6,950 6,550
kW 0.49 0.54 0.59 0.65 0.72
71 72 (22.2) SHC 2,520 2,470 2,400 2,280 2,140
(21.7) 76 (24.4) SHC 3,260 3,210 3,140 3,020 2,880
80 (26.7) SHC 4,040 3,990 3,920 3,800 3,660
84 (28.9) SHC 4,780 4,730 4,660 4,540 4,400
88 (31.1) SHC 5,520 5,480 5,410 5,290 5,140
TC 7,740 7,660 7,490 7,220 6,930
kW 0.50 0.55 0.60 0.66 0.73
75 76 (24.4) SHC 2,320 2,290 2,240 2,150 2,050
(23.9) 80 (26.7) SHC 3,100 3,070 3,010 2,920 2,830
84 (28.9) SHC 3,840 3,810 3,750 3,670 3,570
88 (31.1) SHC 4,580 4,550 4,500 4,410 4,310
92-131 S/M (Basic) 2/21/01 4:49 PM Page 7

8WM–700699
208V
CM3622 / KMS0712×1
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
Rating Capacity: 7,000 BTU/H Air Flow Rate: 210 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 6,930 6,620 6,300 5,940 5,460
kW 0.47 0.51 0.56 0.60 0.66
59 72 (22.2) SHC 5,220 5,070 4,920 4,750 4,520
(15.0) 76 (24.4) SHC 5,940 5,780 5,630 5,460 5,240
80 (26.7) SHC 6,690 6,530 6,300 5,940 5,460
84 (28.9) SHC 6,930 6,620 6,300 5,940 5,460
88 (31.1) SHC 6,930 6,620 6,300 5,940 5,460
TC 7,170 6,940 6,670 6,310 5,810
kW 0.47 0.52 0.56 0.61 0.68
63 72 (22.2) SHC 4,360 4,250 4,130 3,970 3,760
(17.2) 76 (24.4) SHC 5,070 4,970 4,850 4,690 4,470
80 (26.7) SHC 5,820 5,720 5,590 5,430 5,220
84 (28.9) SHC 6,530 6,430 6,310 6,150 5,810
88 (31.1) SHC 7,170 6,940 6,670 6,310 5,810
TC 7,360 7,250 *7,000 6,620 6,160
kW 0.48 0.52 0.57 0.62 0.69
67 72 (22.2) SHC 3,460 3,410 3,310 3,160 2,970
(19.4) 76 (24.4) SHC 4,170 4,130 4,030 3,870 3,690
80 (26.7) SHC 4,920 4,870 4,770 4,620 4,400
84 (28.9) SHC 5,640 5,590 5,490 5,330 5,150
88 (31.1) SHC 6,350 6,300 6,200 6,050 5,860
TC 7,600 7,470 7,280 6,950 6,550
kW 0.48 0.53 0.58 0.64 0.70
71 72 (22.2) SHC 2,540 2,490 2,420 2,300 2,150
(21.7) 76 (24.4) SHC 3,250 3,210 3,140 3,020 2,870
80 (26.7) SHC 4,000 3,950 3,880 3,760 3,620
84 (28.9) SHC 4,720 4,670 4,600 4,480 4,330
88 (31.1) SHC 5,430 5,380 5,310 5,190 5,040
TC 7,740 7,660 7,490 7,220 6,930
kW 0.49 0.54 0.59 0.65 0.72
75 76 (24.4) SHC 2,340 2,310 2,260 2,170 2,070
(23.9) 80 (26.7) SHC 3,090 3,060 3,000 2,910 2,820
84 (28.9) SHC 3,800 3,770 3,720 3,630 3,530
88 (31.1) SHC 4,520 4,490 4,430 4,340 4,250
92-131 S/M (Basic) 2/21/01 4:49 PM Page 8

9WM–700699
230V
CM3622 / KMS1812
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: 18,000 BTU/H Air Flow Rate: 440 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 17,820 17,010 16,200 15,280 14,040
kW 1.30 1.41 1.54 1.67 1.83
59 72 (22.2) SHC 12,350 11,900 11,460 10,970 10,340
(15.0) 76 (24.4) SHC 13,720 13,270 12,830 12,350 11,710
80 (26.7) SHC 15,150 14,700 14,260 13,780 13,140
84 (28.9) SHC 16,520 16,070 15,630 15,150 14,040
88 (31.1) SHC 17,820 17,010 16,200 15,280 14,040
TC 18,430 17,860 17,150 16,220 14,940
kW 1.31 1.43 1.56 1.70 1.87
63 72 (22.2) SHC 10,550 10,260 9,910 9,450 8,840
(17.2) 76 (24.4) SHC 11,920 11,630 11,280 10,820 10,210
80 (26.7) SHC 13,350 13,060 12,710 12,250 11,640
84 (28.9) SHC 14,720 14,430 14,080 13,620 13,010
88 (31.1) SHC 16,090 15,800 15,450 14,990 14,380
TC 18,940 18,630 *18,000 17,010 15,840
kW 1.32 1.45 1.58 1.72 1.91
67 72 (22.2) SHC 8,680 8,540 8,250 7,800 7,290
(19.4) 76 (24.4) SHC 10,050 9,910 9,620 9,180 8,660
80 (26.7) SHC 11,480 11,340 11,050 10,610 10,100
84 (28.9) SHC 12,850 12,710 12,420 11,980 11,470
88 (31.1) SHC 14,220 14,080 13,790 13,350 12,840
TC 19,530 19,210 18,720 17,870 16,830
kW 1.33 1.46 1.60 1.77 1.95
71 72 (22.2) SHC 6,760 6,630 6,430 6,080 5,660
(21.7) 76 (24.4) SHC 8,130 8,000 7,800 7,450 7,040
80 (26.7) SHC 9,570 9,430 9,230 8,880 8,470
84 (28.9) SHC 10,940 10,800 10,600 10,260 9,840
88 (31.1) SHC 12,310 12,170 11,970 11,630 11,210
TC 19,910 19,690 19,260 18,580 17,820
kW 1.36 1.49 1.63 1.81 2.00
75 76 (24.4) SHC 6,210 6,130 5,970 5,720 5,440
(23.9) 80 (26.7) SHC 7,640 7,560 7,400 7,150 6,880
84 (28.9) SHC 9,010 8,930 8,770 8,520 8,250
88 (31.1) SHC 10,390 10,300 10,140 9,890 9,620
92-131 S/M (Basic) 2/21/01 4:49 PM Page 9

10 WM–700699
208V
CM3622 / KMS1812
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: 17,600 BTU/H Air Flow Rate: 420 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 17,420 16,630 15,840 14,940 13,730
kW 1.30 1.41 1.54 1.67 1.83
59 72 (22.2) SHC 10,040 9,520 9,030 8,470 7,750
(15.0) 76 (24.4) SHC 11,360 10,850 10,350 9,790 9,070
80 (26.7) SHC 12,740 12,230 11,730 11,170 10,450
84 (28.9) SHC 14,060 13,550 13,050 12,490 11,770
88 (31.1) SHC 15,380 14,870 14,370 13,820 13,090
TC 18,020 17,460 16,770 15,860 14,610
kW 1.31 1.43 1.56 1.70 1.87
63 72 (22.2) SHC 8,030 7,690 7,300 6,780 6,090
(17.2) 76 (24.4) SHC 9,350 9,020 8,620 8,100 7,410
80 (26.7) SHC 10,730 10,400 10,000 9,480 8,790
84 (28.9) SHC 12,050 11,720 11,320 10,800 10,110
88 (31.1) SHC 13,370 13,040 12,640 12,120 11,430
TC 18,520 18,220 *17,600 16,630 15,490
kW 1.32 1.45 1.58 1.72 1.91
67 72 (22.2) SHC 5,950 5,790 5,460 4,970 4,390
(19.4) 76 (24.4) SHC 7,270 7,110 6,790 6,290 5,710
80 (26.7) SHC 8,650 8,490 8,170 7,670 7,090
84 (28.9) SHC 9,970 9,810 9,490 8,990 8,410
88 (31.1) SHC 11,290 11,130 10,810 10,310 9,730
TC 19,100 18,780 18,300 17,480 16,460
kW 1.33 1.46 1.60 1.77 1.95
71 72 (22.2) SHC 3,830 3,680 3,460 3,070 2,610
(21.7) 76 (24.4) SHC 5,160 5,000 4,780 4,390 3,930
80 (26.7) SHC 6,540 6,380 6,160 5,770 5,310
84 (28.9) SHC 7,860 7,700 7,480 7,090 6,630
88 (31.1) SHC 9,180 9,030 8,800 8,410 7,950
TC 19,470 19,250 18,830 18,160 17,420
kW 1.36 1.49 1.63 1.81 2.00
75 76 (24.4) SHC 3,050 2,960 2,780 2,500 2,200
(23.9) 80 (26.7) SHC 4,430 4,340 4,160 3,880 3,580
84 (28.9) SHC 5,750 5,660 5,480 5,200 4,900
88 (31.1) SHC 7,070 6,980 6,800 6,520 6,220
92-131 S/M (Basic) 2/21/01 4:49 PM Page 10

OUTDOOR UNIT
INDOOR UNIT
UNIT A
Heat exchanger
Heat exchanger
INDOOR UNIT
UNIT B
Heat exchanger
INDOOR UNIT
UNIT C
Heat exchanger
Narrow
tube
service valve
Capillary tube Drier
A
B
C
Check
port A
Check
port B
Check
port C
Accumulator
Accumulator
Accumulator
Compressor C
Compressor B
Compressor A
Narrow tube
O.D.
1/4" (6.35 mm)
O.D.
1/4" (6.35 mm)
O.D.
1/4" (6.35 mm)
Wide tube
O.D.
3/8" (9.52 mm)
O.D.
3/8" (9.52 mm)
O.D.
1/2" (12.7 mm)
Wide tube
service
valve A
B
C
5. REFRIGERANT FLOW DIAGRAM
11 WM–700699
92-131 S/M (Basic) 2/21/01 4:49 PM Page 11

12 WM–700699
6. ELECTRICAL DATA
● Electrical Characteristics
CM3212 / KMS0712×1
Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Performance at Indoor Unit Outdoor Unit Complete Unit
230/208V – 1ø – 60Hz Fan Motor Fan Motor Compressor
Rating Conditions A 0.15 / 0.14 0.62 / 0.56 2.53 / 2.80 3.3 / 3.5
W 34 / 28 140 / 126 576 / 566 750 / 720
Locked-Rotor Amperes A 0.19 / 0.18 1.95 / 1.77 22 —
CM3212 / KMS1812×1
Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Performance at Indoor Unit Outdoor Unit Complete Unit
230/208V – 1ø – 60Hz Fan Motor Fan Motor Compressor
Rating Conditions A 0.4 / 0.4 1.45 / 1.42 7.05 / 7.68 8.9 / 9.5
W 90 / 80 330 / 290 1,580 / 1,580 2,000 / 1,950
Locked-Rotor Amperes A 0.45 / 0.40 1.95 / 1.77 54 —
CM3212 / KMS7012×2
Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Performance at Indoor Units Outdoor Unit Complete Unit
230/208V – 1ø – 60Hz Fan Motor Fan Motor Compressor
Rating Conditions A 0.30 / 0.28 1.45 / 1.42 4.95 / 5.5 6.7 / 7.2
W 68 / 56 330 / 290 1,142 / 1,144 1,540 / 1,490
Locked-Rotor Amperes A (0.19 / 0.18) ×2 1.95 / 1.77 22 ×2—
92-131 S/M (Basic) 2/21/01 4:49 PM Page 12

13 WM–700699
CM3212 / KMS0712+KMS1812
Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
Performance at Indoor Units Outdoor Unit Complete Unit
230/208V – 1ø – 60Hz Fan Motor Compressor
Rating Conditions A 0.55 / 0.54 1.45 / 1.42 9.80 / 10.64 11.8 / 12.6
W 124 / 108 330 / 290 2,246 / 2,202 2,700 / 2,600
Locked-Rotor Amperes A 0.19 + 0.45 / 0.18 + 0.40 1.95 / 1.77 22 + 54 —
Performance at Indoor Units Outdoor Unit Complete Unit
230/208V – 1ø – 60Hz Fan Motor Compressor
Rating Conditions A 0.70 / 0.68 1.45 / 1.42 12.85 / 13.90 15.0 / 16.0
W 158 / 136 330 / 290 2,912 / 2,874 3,400 / 3,300
Locked-Rotor Amperes A 0.19 + 0.19 + 0.45 / 0.18 + 0.18 + 0.40 1.95 / 1.77 22 + 22 + 54 —
CM3212 / KMS7012×2+KMS1812
Remarks: Rating conditions are: Outside air temperature 95°F DB/75°F WB
Indoor unit entering air temperature 80°F DB/67°F WB
92-131 S/M (Basic) 2/21/01 4:49 PM Page 13

14 WM–700699
● Electrical Wiring Diagram
Outdoor Unit: CM3212
CMA
S
C
R
WHT
BLK
RED
CMB
S
C
R
BLK
WHT
RED
CMC
S
C
R
BLK
WHT
RED
2
3
TO INDOOR UNIT A
1
2
3
1
2
3
1
2
Power supply
1
53
2
64
78
Fuse
1
53
2
64
78
1
53
2
64
78
P
5
4
3
2
1
6
5
4
3
2
1
1
Terminal
plate (3P) A
TO INDOOR UNIT B
Terminal
plate (3P) B
TO INDOOR UNIT C
Terminal
plate (3P) C
Terminal
plate (2P)
BLK
G
BLK YEL
BRN
Capacitor C
WHT
YEL
PNK
BRN
6S
WHT
PNK
YEL
BRN
GRY
FM
Connector (6P)
GRN
Fan motor G
GRY
BLU 138
57
Relay
GRY GRY
BLK
Thermostat
BLK
PNK
Relay C
GRY PNK
GRY
Relay B
BLU
ORG
REDGRY
Relay A
ORGORG
ORG YEL
BLK YEL
BLK
YEL
YEL
BRN
ORG
BLK
GRY
BLK
ORG
BLK
Compressor
motor
Capacitor
CA
OLR A
Capacitor
CB
Capacitor
CC
OLR B
XA XB XC
GRY
PNK
BLU
1X
YEL
Compressor
motor
Compressor
motor
WARNING: To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
92-131 S/M (Basic) 2/21/01 4:49 PM Page 14

15 WM–700699
Indoor Unit: KMS0712
1
3
3 2
2
1
1 2
2
1
1
1
2
1
2
1
1
9
9
5
5
4
4
3
3
2
2
1
1
5
5
4
4
3
3
2
2
1
1
6
6
BLK
BLK
Thermistor
1
2
1
2
BLK
BLK
Thermistor
2P
TH1
2P
TH2
2P
CM
3P
Supply
CONTROLLER
Switch
assy
Receiver
assy
9P SW
Fan motor
FM
2
3
1
2
1
2
2P
SEC
BRN
PNK
GRY
YEL
VLT
WHT
GRY
YEL
VLT
WHT
Connector (6P)
5P FM
Capacitor
PNK
BRN
1
2
1
2
2P
PRY
WHT
WHT
SP
Power
transformer
BRN
WHT
BLK
RED
WHT
ORG
Relay
ORG
Terminal plate
TO OUTDOOR UNIT
GRN
G
G
2
1
2
1
BRN
BRN
BRN
Connector
2
2
8
8
WARNING: To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleanin
g
an
y
electrical
p
arts.
92-131 S/M (Basic) 2/21/01 4:49 PM Page 15