Mitsubishi Electric SUZ-KA09NAHZ User manual

SERVICE MANUAL R410A
Outdoor unit
[Model Name]
SUZ-KA09NAHZ
SUZ-KA12NAHZ
SUZ-KA15NAHZ
SUZ-KA18NAHZ
[Service Ref.]
SUZ-KA09NAHZ.TH
SUZ-KA12NAHZ.TH
SUZ-KA15NAHZ.TH
SUZ-KA18NAHZ.TH
PARTS CATALOG (OCB709)
CONTENTS
1. COMBINATION OF INDOOR AND OUTDOOR UNITS
...
2
2. PART NAMES AND FUNCTIONS...................... 2
3. SPECIFICATION................................................. 3
4. OUTLINES AND DIMENSIONS.......................... 4
5. WIRING DIAGRAM............................................ 5
6. REFRIGERANT SYSTEM DIAGRAM................ 7
7. DATA................................................................... 9
8. ACTUATOR CONTROL.....................................14
9. SERVICE FUNCTIONS......................................15
10. TROUBLESHOOTING.......................................15
11. FUNCTION SETTING........................................ 32
12. DISASSEMBLY INSTRUCTIONS......................35
Note:
• This manual describes
service data of the outdoor
units only.
No. OCH709
REVISED EDITION-A
December 2019
SPLIT-TYPE, AIR CONDITIONERS
SUZ-KA09NAHZ.TH
OCH709 is void.
Revision:
• 3.SPECIFICATION has
been revised in REVISED
EDITION-A.

2
OCH709A
1COMBINATION OF INDOOR AND OUTDOOR UNITS
OUTDOOR UNIT
Piping
Air outlet
Drain outlet
Air inlet
(back and side)
Drain hose
PART NAMES AND FUNCTIONS
2
SUZ-KA09NAHZ.TH SUZ-KA12NAHZ.TH SUZ-KA15NAHZ.TH SUZ-KA18NAHZ.TH
Outdoor unit
Indoor unit
SUZ-KA09NAHZ.TH SUZ-KA12NAHZ.TH SUZ-KA15NAHZ.TH SUZ-KA18NAHZ.TH
Service Ref. Service
Manual No.
SLZ-KF09/12/15/18NA OCH669
OCB669 ○○○○
SEZ-KD09/12/15/18NA4 HWE08020
BWE10180 ○○○○
PEAD-09/12/15/18AA7 HWE16080
BWE016290 ○○○○
SVZ-KP12/18NA MD-1404-K019
MD-1404-K018 ○ ○
MLZ-KP09/12/18NA OBH802
OBB802 ○ ○ ○

3
OCH709A
Outdoor unit model SUZ-KA09
NAHZ
SUZ-KA12
NAHZ
SUZ-KA15
NAHZ
SUZ-KA18
NAHZ
Power supply V , phase , Hz 208/230 , 1 , 60
Max. fuse size (time delay) A 15 20
Min. circuit ampacity A 14 17
Fan motor F.L.A 0.67 1.00
Compressor
Model SNB130FHBM2T SNB220FQGMT
R.L.A 10.0 13.0
L.R.A 12.5 16.0
Refrigeration oil oz. (Model) 22.0 (FV50S) 23.7 (FV50S)
Refrigerant control Linear expansion valve
Sound level*1Cooling dB(A) 54 55
Heating dB(A) 55
Defrost method Reverse cycle
Dimensions
W in 33-1/16
D in 13
H in 34-5/8
Weight Ib 129 131
External nish Munsell 3Y 7.8/1.1
Control voltage
(by built-in transformer) VDC 12 - 24
Refrigerant piping Not supplied
Refrigerant pipe size
(Min. wall thickness)
Liquid in 1/4 (0.0265) 1/4 (0.0265)
Gas in 3/8 (0.0285) 1/2 (0.0285)
Connection method Indoor Flared
Outdoor Flared
Between the indoor &
outdoor units
Height difference ft 40 50
Piping length ft 65 100
Refrigerant charge (R410A) 3 lb. 9 oz. 3 lb. 12 oz.
Note: Test conditions are based on AHRI 210/240.
Rating conditions (Cooling) — Indoor: 80˚F D.B., 67˚F W.B., Outdoor: 95˚F D.B., (75˚F W.B.)
(Heating) — Indoor: 70˚F D.B., 60˚F W.B., Outdoor: 47˚F D.B., 43˚F W.B.
3SPECIFICATION
OPERATING RANGE
(1) POWER SUPPLY
Rated voltage Guaranteed voltage (V)
Outdoor unit
208/230 V
1 phase
60 Hz
Min. 187 208 230 Max. 253

4
OCH709A
Unit: inch
SUZ-KA09NAHZ.TH SUZ-KA12NAHZ.TH SUZ-KA15NAHZ.TH SUZ-KA18NAHZ.TH
4OUTLINES AND DIMENSIONS
16-7/16
1-9/16
1-5/8
Drain hole
6-7/8 19-11/16
13
2
Air in
Air in
Air out
2-holes 13/32 13/16
14-3/16
33-1/16
4-5/16
3-3/16
34-5/8
17-25/32
Service panel
3-29/32
6-1/2
7-11/16
35
44
Liquid refrigerant pipe joint
Refrigerant pipe (flared) Ø 1/4
Gas refrigerant pipe joint
Refrigerant pipe (flared) Ø 3/8 (KA09/12)
Refrigerant pipe (flared) Ø 1/2 (KA15/18)
*1 20 in. (500 mm) or more when front
and sides of the unit are clear
14 in. (350 mm)
or more
4 in. (100 mm)
or more
REQUIRED SPACE
Clear *1
4 in. (100 mm)
or more
20 in. (500 mm)
or more *2
*2 When any 2 sides of left, right
and rear of the unit are clear

5
OCH709A
5WIRING DIAGRAM
SUZ-KA09NAHZ.TH SUZ-KA12NAHZ.TH