Multiposition AHUAC KNZDCH/AA

Air Conditionerinstallation manual

imagine the possibilitiesThank you for purchasing this Samsung product.

EN ES FR

2

Safety Precautions

WARNING

WARNING

General information

Contents2

4

7

12

13

17

24

33

41

3

ENGLISH

Installing the unit

IMPORTANT

Power supply line, fuse or circuit breaker

4

Safety Precautions

CAUTION

General Information

NOTE

ENGLISH

Product Inspection

Accessories

Selecting the installation location

Selecting the installation location

Dimensions

5

BOTTOMs

TOP

LEFT SIDE RIGHT SIDEFRONT

DIMENSIONAL DATA MULTI-POSITION AIR HANDLER

A B C D E F G H J K L M N P R

NOTE

No. Description

1

2

345

7

ENGLISH

Indoor unit installation

Location

Drain pipe installation

H H

Clearance - Access for service

30" minimum

Right side of unit

Vertical installation Horizontal installation

Indoor unit installation

Return air requirements

0" 0"

Return Air Requirements

For A/C and HP Air Handlers 1/3 HP Blower Motor

For A/C and HP Air Handlers 1/2 HP Blower Motors

For A/C and HP Air Handlers with Electric Heat use 3/4 HP Blower Motor

9

ENGLISH

Return air requirements

Closet Wall

Typical Closet Installations

Upflow Accessory Filter Box Kit

NOTE

ADJUSTMENT KNOB FOR 1" OR 2" FILTER

ADJUSTMENT KNOB FOR 1" OR 2" FILTER

Accessory Air Filter Box for 1” or 2” Air Filters. Filter Size Adjustment knob is on both sides.

FILTER BASE ASSEMBLY KIT MODEL NUMBERS - FIELD INSTALLED, PURCHASED SEPARATELY

Indoor unit installation

Arrangement:

Airflow Airflow

Horizontal left arrangement

Upflow application

11

ENGLISH

Horizontal application

Refrigerant pipe conections

Horizontal left (right to left) drain connections

Horizontal right (left to right) drain pan opening

Horizontal right application (left to right)

Evap. In Temperature Sensor Move drain pan to right side of coil

12

Indoor unit installation

Closet installation

Refrigerant piping

24 42

Cutting the pipes

Oblique Rough Burr

13

ENGLISH

Performing leak test & insulation

Leak test

LEAK TEST WITH NITROGEN (before opening valves)

LEAK TEST WITH R-410A (after opening valves)

CAUTION

Leak check

Insulation

T13.0mm (0.51”) or thicker Acrylonitrile Butadien Rubber

NOTE

Leak check

NBR [T13.0mm (0.51”) or thicker]

Insulation

Indoor unit

Be sure to overlap the insulation

Gas pipe

Insulation

Liquid pipe

Insulation pipe

CAUTION CAUTION

14

Performing leak test & insulation

PipeOuter diameter

Insulation Type (Cooling/Heating)

RemarksGeneral [30°C (86°F),

85% or below]High humidity [30°C

(86°F), more than 85%]

EPDM, NBR

mm inch mm inch mm inch

Liquid pipe9 9

13 13

Gas pipe

13 19

19 1

19 32

2 1

ENGLISH

Additional refrigerant

Drain pipe installation

2" minimum (50.8mm minimum)

2" minimum (50.8mm minimum)

Anti-syphon air vent

Refrigerant pipe conections

Horizontal left (right to left) drain connections

Horizontal right (left to right) drain pan opening

2" minimum (50.8mm minimum)

Typical Condensate Traps

CAUTION

CAUTION

Water leakage test

CAUTION

Drain pipe insulation

Fix securely without any gap.

Indoor unit

CAUTION

17

ENGLISH

Wiring Work

WARNING

Power supply wiring

Wiring diagram

1(L) 2(N)

Indoor Unit

Outdoor Unit

Indoor Power Main power cable

Cable clmap

Cable clmap

Communication cable

V1 V2 F3 F4

1(L) 2(N) NL

F2F1

F2F1

Between Indoor and Outdoor Connection cable Specifications(Common in use)

Wiring Work

Terminal Block SPEC (Indoor)

AC POWER : M4 SCREW COMMUNICATION : M4 SCREW

0.43(8.4) 0.51(9.5) 0.43(8.4) 0.51(9.5)0.

7(10

.0)

0.7(

10.0

)

WARNING

Single circuit line wiring connections

CAUTION

A

CA A

B

Left side Right side

A - Power conduit connection opening (must use when installing accessory electric heat kit).

B - Power conduit connection opening (do not use when installing accessory electric heat kit).

C - Communication wire conduit connection opening

IMPORTANT

IMPORTANT

19

ENGLISH

Power supply wiring with accessory electric heat kit

Power conduit connection openings

Wiring Work

Power supply wiring with accessory electric heat kit

V-AHU Control Box (single circuit) 6 Pin Plug

Ground Lug

Breaker

liquid pipe

Insulation (wrapped around pipe and sensor)

Liquid pipe

Wire tie (to secure insulation)Sensor Sensor wire

Wire tie (to secure sensor to pipe)

NOTE:

IMPORTANT

21

ENGLISH

Power supply connections

1 2 1 2 1 2 1 2 1 2 1 2

1 3 #12 #12

1

1

1 #4

1

1 #4

1

1 #4

2 #4

22

Wiring Work

Communication wiring connections

ATTENTION

PBA ground screw/connection to chassis

1(L)/2(N) high voltage connection terminals

F1/F2 communication connection terminals

Supply power ground connection point

Selecting compressed ring terminal

Silver solder

Nominal dimensions

for cable [inch²(mm²)]

Nominal dimensions

for screw [inch(mm)]

B D d1 E F L d2 t

Standard dimension [inch(mm)]

Allowance [inch(mm)]

Standard dimension [inch(mm)]

Allowance [inch(mm)]

Standard dimension [inch(mm)]

Allowance [inch(mm)]

Min. [inch(mm)]

Min. [inch(mm)]

Max. [inch(mm)]

Standard dimension [inch(mm)]

Allowance [inch(mm)]

Min. [inch(mm)]

23

ENGLISH

CAUTION

24

Wire Diagram

24 V

ACCTB

ML1L2

GND

240

VAC

WHT

WHT

BLK

GRN

G

BLK

LAD

DE

R D

IAG

RA

MS

CH

EMA

TIC

DIA

GR

AM

NO

HE

AT

- 61C

C05

64D

Wir

e C

olor

sB

LK -

BLA

CK

BLU

- B

LUE

BR

N -

BR

OW

N

OR

N -

OR

AN

GE

YE

L - Y

ELL

OW

WH

T - W

HIT

E

GR

N -

GR

EE

N

SFSR

CO

IL

240

VA

C

24 V

AC

TR

12

3

45

6 BM

FP

3 AmpFuse

3 Am

pFu

seBL

K

TR

GGS

WHT

GND

GG

S

SAMSUNG

HE

AT

ING

PR

OD

UC

TS

230

PRP

1C

V1V2

F3F4

BLK- L1

WHT - L2

BLU

- C

EVA

IN

LFSR6

8RE

D

68

MFS

RST

3 CO

ILC

BRN

C6

5ST1

COIL

3

L1L2

GNDG

BLKGRN

WHT

NO H

EAT

BLK

BLK

BLKBLK BLK

8O

RN

LEG

END

TR -

TRA

NSF

OR

MER

BM

FP -

9 PI

N M

OLE

X B

LOW

ER M

OTO

R P

LUG

ASS

EMB

LY

GN

D -

GR

OU

ND

CO

NN

ECTI

ON

BM

MP

- 9 P

IN M

ALE

MO

LEX

BLO

WER

MO

TOR

PLU

GC

TBM

- C

ON

STA

NT

TOR

QU

E B

LOW

ER M

OTO

RG

GS

- GR

EEN

GR

OU

ND

SC

REW

HFS

R -

HIG

H F

AN

SPE

ED R

ELA

Y

MT

- MO

TOR

TER

MIN

AL

MFS

R -

MED

IUM

FA

N S

PEED

REL

AY

LFSR

- LO

W S

PEED

TA

P R

ELA

Y

LEG

END

WHT - L2

BLK - L1

HPF

BRN

- RBL

U - C

ORN

= P

IN 1

BLK

= PI

N 2

HPF

- 6

PIN

HEA

TER

FEM

ALE

PLU

G

FAN

OUT

BLK

CNTR

O B

DW

HTPN

K

YEL

- L2

- 230

VAC

TO

HC

RED

- L1

- 230

VAC

TO H

CW

HT =

PIN

3BL

U =

PIN

4

01

2

4

6

8

EVA

OU

T

Roo

m IN

Sens

or

Pla

te"A

" C

oil

RED

= PI

N 5

ORN

- DE

FRO

ST IN

DOO

R BL

OW

ER M

OTO

R HI

SPE

ED T

AP

ORN ORN

ORN - ST5

ERR

OR

EXPL

AN

ATI

ON

E101

E121

E122

E123

E162

E163

NO C

OM

MUN

ICAT

ION

FOR

2 M

INUT

ES

BETW

EEN

INDO

OR

AND

OUT

DOO

R UN

IT

ERRO

R O

N R

OO

M T

EMPE

RATU

RE

SENS

OR

OF

INDO

OR

UNIT

(S

HORT

OR

OPE

N)

ERRO

R O

N EV

A IN

TEM

PER

ATUR

E SE

NSO

R O

F IN

DOO

R UN

IT

(SHO

RT O

R O

PEN)

ER

ROR

ON

EVA

OUT

TEM

PER

ATUR

E SE

NSO

R O

F IN

DOO

R UN

IT

(SHO

RT O

R O

PEN)

EE

PRO

M E

RRO

R O

F M

ICO

M (P

HYSI

CAL

PRO

BLEM

OF

PART

S/CI

RCUI

T)IN

DOO

R UN

ITS

REM

OTE

CO

NTRO

LLER

O

PTIO

N IN

PUT

IS IN

CORR

ECT

OR

MIS

SING

F1F2

1(L)2(N)

RED

BLU

WHT

BLK

YEL

GRN

BRN

BLU

BRN

BLU

BLK

BLK

BLK

BLK

BLK

GRN

GRN

GRN

PRP

PRP

PRP

PRP

PRP

230230

PNK 78

9

PNK

PNK

PNK

PNK

PNK

GRN

GRNGRN

PRPPRP PRPBLU

- C

BLU - C BLU - C

BLU

- C

BRN

- R

BRN

- R

BRN - R

BRN

- R

BRN - R

BRN

BRN

BRN

BRN

RED

JACK

ET

BLK

BLK

BLK

BLK

BLK

BLK

SFSR

CO

ILFA

N O

UT

BLK

CNTR

O B

DW

HTPR

P

SFSR

CO

ILFA

N O

UT

BLK

CNTR

O B

DW

HTG

RN

HFS

R

MFS

RLF

SR

ST5

COIL

HFSR

BRN

BRN

BRNBRNBRN

BRN

GRN

GND

GG

SG

RNBL

K

BLK

- L1

BLK

- L1

BLK - L1

WHT

WHT

- L2

WHT - L2

ST -

BLO

WER

MO

TOR

SPE

ED T

AP

12345

CLGN

BLO

WER

MO

TOR

MP

PIN

NUM

BERS

32

16

54

98

7

CT

ORN

PRP

PNK

GRN

GRNWHT

BLK

BLU

MT

BM

MP

Sens

or

Sens

or

PR

P - P

UR

PLE

PN

K -

PIN

K

EE

V1

DIS

PLA

YIN

/OUT

/DIS

/EVA

CO

M2

CO

M1

HOTCOIL

LOW

FAN OUTPOWER

DOW

NLOA

D

EXT-

T

MED HIGH

COM

P/ER

ROR

FUSE-CHK

DRAI

N

DV

MSP

I

TURBO

CN41

2

GNDGG

S

BLK

BRN

BRN

BLK

BRN

VACVAC

VAC

PNK

GRN

PNK

GRN

ENGLISH

Selecting motor speedSelecting the Constant Torque Blower Speed

Change Motor Speeds

all

Terminal ConnectionDefault speed tap settings

AC018KNZDCH/AA

AC024KNZDCH/AA

AC030KNZDCH/AA

AC036/042KNZDCH/AA

AC048KNZDCH/AA

AC054KNZDCH/AA

C

L

G

N/L2

T1

T2

T3

T4

T5

Motor control/voltage taps

Blower CFM tablesAC018KNZDCH/AA,AC024KNZDCH/AA,AC030KNZDCH/AA,AC036KNZDCH/AA,AC042KNZDCH/AA,AC048KNZDCH/AA,AC054KNZDCH/AA

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

411

2 5

497

497444444444444

3 472

397

27

ENGLISH

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

771491

317

2 5 799

723

349

3

493

Blower CFM tables

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

943

1 419 1

2 5

1314

932914

1217

1149742 1113

1 1

3

7371

29

ENGLISH

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

943

1 419 1

2 5

1314

932914

1217

1149742 1113

1 1

3

7371

Blower CFM tables

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

1191

747

1 1 922

2

1137

51217

11491113

1 1

3

1147

1

31

ENGLISH

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

14221379

793 1331

1224

1 1

2

1379

5

17391293

7111 1

3

9291

32

Blower CFM tables

Motor Tap P(inwg) CFM Motor Tap P(inwg) CFM

1 4

1727

1213

7321437

1 1

2 5

1923

993 1714

1 1

314721412

129412331172

1

33

ENGLISH

Setting an indoor unit address and installation option

The procedure of option setting

Entering mode for setting option

Option setting mode

Step 1. Entering mode to set option

Step 2. The procedure of option setting

CAUTION

1

2 3

34

Setting an indoor unit address and installation option

Option setting Status

ENGLISH

Option setting Status

Step 3. Check the option you have set

→

→

→

→

→

→

→

→

→

Step 4. Input option

Step 5. Check operation

Setting an indoor unit address and installation optionSetting an indoor unit address (MAIN/RMC)

A1

11

CAUTION

F4F31(L) 2(N) F1 F2 V1 V2

37

ENGLISH

Setting the indoor unit option code

SEG1 SEG2 SEG3 SEG4 SEG5 SEG60 ✴ ✴ ✴ ✴ ✴

Page number

SEG7 SEG8 SEG9 SEG10 SEG11 SEG121 ✴ ✴ ✴ ✴ ✴

Page number

SEG13 SEG14 SEG15 SEG16 SEG17 SEG182 ✴ ✴ ✴ ✴ ✴

Page number

SEG19 SEG20 SEG21 SEG22 SEG23 SEG243 ✴ ✴ ✴ ✴ ✴

Page number

NOTE

/

NOTE

CAUTION

Main Menu Sub-menu 1 2 3 54 6

Data bit

1 2 3 4 5 6

Option CodePage number

Setting an indoor unit address and installation option

Setting an indoor unit address

NOTE

/

NOTE

Setting an indoor unit installation option

NOTE

1 2 3 4 5 6

Data bit

39

ENGLISH

SEG1 SEG2 SEG3 SEG4 SEG5 SEG6

2

SEG7 SEG8 SEG9 SEG10 SEG11 SEG12

1

SEG13 SEG14 SEG15 SEG16 SEG17 SEG18

2

SEG19 SEG20 SEG21 SEG22 SEG23 -

3

Option No. : 02XXXX-1XXXXX-2XXXXX-3XXXXX

Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6

21 1

Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12

1

11

1

2

2

34

7

9ABCD

Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18

2

1

1 12

3

Option SEG19 SEG20 SEG21 SEG22 SEG23 -

3

1

22

1

33

24

4

NOTE

CAUTION

Air Flow

Suction side Discharge side

Indoor unit

Electronic heater should not be installed.

Setting an indoor unit address and installation option

41

ENGLISH

Troubleshooting

LED Display on the receiver & display unit

X X X X

X X X X

X X X

X X X X

X X

X X

X X X

X X X

42

Troubleshooting

X X X

On Flickering X OffIf you turn off the air conditioner when the LED is flickering, the LED is also turned off.

43

ENGLISH

Wired remote controllerIf an error occurs, is displayed on the wired remote controller. If you would like to see an error code, press the Test button.

Error mode Contents Error type

Indoor unit communication error Communication error

Duplicated address setting error Communication error

No response error address from indoor unit Communication error

Indoor temperature sensor (open/short error) Indoor sensor error

Indoor unit Eva In sensor (Open/Short) Indoor sensor error

Indoor unit Eva Out sensor (Open/Short) Indoor sensor error

EEPROM error (Hardware) Indoor EEPROM error

EEPROM option error Indoor EEPROM error

Error on thermal fuse of indoor unit (Open) Indoor Terminal Block error

Indoor/outdoor communication error (1 min) Communication error

Communication error between indoor/outdoor

INV MAIN MICOM (1 min)Communication error

Outdoor temperature sensor error Outdoor sensor error

COND temperature sensor error Outdoor sensor error

[Inverter] Emission temperature sensor error Outdoor sensor error

Detection of Indoor Freezing (when Comp. Stops) Outdoor unit protection control error

Protection of Outdoor Overload (when Comp. Stops) Outdoor unit protection control error

Emission temperature excessively high Outdoor unit protection control error

High pressure blockage error

(Refrigerant completely Leakage error)Self diagnostic error

Heating operation blocked Self diagnostic error

Cooling operation blocked Self diagnostic error

Outdoor fan 1 error Self diagnostic error

44

Error mode Contents Error type

[Inverter] Compressor startup error Outdoor unit protection control error

[Inverter] Total current error/PFC over current error Outdoor unit protection control error

OLP Overheat and Comp. Stop Outdoor unit protection control error

[Inverter] IPM over current error Outdoor unit protection control error

Compressor V limit error Outdoor unit protection control error

DC LINK over/low voltage error Outdoor unit protection control error

[Inverter] Compressor rotation error Outdoor unit protection control error

[Inverter] Current sensor error Outdoor unit protection control error

[Inverter] DC LINK voltage sensor error Outdoor unit protection control error

EEPROM Read/Write error Outdoor unit protection control error

[Inverter] OTP error Outdoor unit protection control error

AC ZERO CROSSING SIGNAL OUT error Outdoor unit protection control error

Compressor LOCK error Outdoor unit protection control error

Outdoor fan 2 error Self diagnostic error

IPM Overheat Error for Outdoor Unit Inverter Comp. Outdoor unit protection control error

Gas leak error Self diagnostic error

Capacities not matched Outdoor unit protection control error

Communication error between the indoor unit and

wired remote controllerWired remote controller error

Communication error between the Master and Slave

wired remote controllers Wired remote controller error

Troubleshooting

ENGLISH

Final Checks and User Tips

Providing information for user

NOTE