Ideal Air IAH24MD-D3DNA3D User manual

IdealAir • National Garden Wholesale, Sunlight Supply Inc. • Vancouver, WA. USA
Service Manual
Model: IAH24MD-D3DNA3D (700476)
IAC24MD-D3DNA3D (700480)
(Refrigerant R410A)
STOP
This product is precharged with
refrigrant for a 25 feet of line set.
If MORE than 25 feet of line set is required, refer to your
Ideal-Air Service Manual for refrigrant charing chart.
For line sets between 25’ & 10’ in length, REMOVE .65 oz
of R410A refrigerant per line feed.
According to manufacturer’s specifications, under no
circumstances should the line set be shorter than
10’ in length.
If you need further assistance, please contact:
Ideal-Air Tech Support
877-943-3251
[e-mail]

Service Manual
Table of Contents
Table of Contents
Part Ė: Technical Information......................................................................... 1
1. Summary........................................................................................................................ 1
6SHFL¿FDWLRQV............................................................................................................ 3
6SHFL¿FDWLRQ6KHHW............................................................................................................. 3
2SHUDWLRQ&KDUDFWHULVWLF&XUYH .......................................................................................... 9
&DSDFLW\9DULDWLRQ5DWLR$FFRUGLQJWR7HPSHUDWXUH ........................................................... 9
&RROLQJDQG+HDWLQJ'DWD6KHHWLQ5DWHG)UHTXHQF\ ..................................................... 10
1RLVH&XUYH...................................................................................................................... 10
3. Outline Dimension Diagram.........................................................................11
3.1 Indoor Unit.........................................................................................................................11
2XWGRRU8QLW ..................................................................................................................... 12
4. Refrigerant System Diagram...................................................................... 13
5. Electrical Part........................................................................................................... 14
5.1 Wiring Diagram................................................................................................................. 14
5.2 PCB Printed Diagram ....................................................................................................... 18
6. Function and Control........................................................................................ 20
5HPRWH&RQWUROOHU,QWURGXFWLRQ ........................................................................................ 20
%ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV........................................................................ 28
Part ė: Installation and Maintenance ................................................... 35
7. Notes for Installation and Maintenance............................................ 35
8. Installation.................................................................................................................. 37
8.1 Installation Dimension Diagram........................................................................................ 37
,QVWDOODWLRQ3DUWVFKHFNLQJ .............................................................................................. 39
8.3 Selection of Installation Location...................................................................................... 39
(OHFWULF&RQQHFWLRQ5HTXLUHPHQW..................................................................................... 39
8.5 Installation of Indoor Unit.................................................................................................. 39
,QVWDOODWLRQRI2XWGRRU8QLW............................................................................................... 42
9DFXXP3XPSLQJDQG/HDN'HWHFWLRQ ............................................................................. 43
&KHFNDIWHU,QVWDOODWLRQDQG7HVW2SHUDWLRQ ..................................................................... 43

Service Manual
Table of Contents
9. Maintenance.................................................................................................................44
3UHFDXWLRQVEHIRUH0DLQWHQDQFH......................................................................................... 44
9.2 Error Code List ....................................................................................................................45
7URXEOHVKRRWLQJIRU0DLQ0DOIXQFWLRQ .................................................................................56
7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ..............................................................................68
10. Exploded View and Parts List ...................................................................70
10.1 Indoor Unit.........................................................................................................................70
2XWGRRU8QLW ......................................................................................................................73
11. Removal Procedure............................................................................................78
5HPRYDO3URFHGXUHRI,QGRRU8QLW ....................................................................................78
5HPRYDO3URFHGXUHRI2XWGRRU8QLW .................................................................................83
Appendix:.............................................................................................................................88
$SSHQGL[5HIHUHQFH6KHHWRI&HOVLXVDQG)DKUHQKHLW .........................................................88
$SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH.......................................................................... 88
Appendix 3: Pipe Expanding MHWKRG ........................................................................................89
$SSHQGL[/LVWRI5HVLVWDQFHIRU$PELHQW7HPSHUDWXUH6HQVRU .............................................90
Warranty:.............................................................................................................................96

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Service Manual
1. Summary
Part Ė: Technical Information
Indoor Unit:
IAC24MD-D3DNA3D/I
IAH24MD-D3DNA3D/I
Outdoor Unit:
IAC24MD-D3DNA3D
IAH24MD-D3DNA3D
Remote Controller:
IARC-24
ON/OFF MODE
FAN
CLOCK TIMER ON
X-FAN TEMP
TIMER OFF
TURBO SLEEP LIGHT

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Service Manual
Model List

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Service Manual
Model
Part Number
Power
6XSSO\
Rated Voltage V 
IAC24MD-D3DNA3D
700480
208/230
5DWHG)UHTXHQF\ Hz 60
3KDVHV 1
3RZHU6XSSO\0RGH 2XWGRRU
Cooling Capacity(Min Max) %WXK 21400(9600~25000)
Heating Capacity(Min Max) %WXK /
&RROLQJ3RZHU,QSXW0LQ Max) W 1780(500~2650)
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&RROLQJ&XUUHQW,QSXW A 7.941
+HDWLQJ&XUUHQW,QSXW A/
5DWHG,QSXW W 2650
5DWHG&XUUHQW A 11.757
$LU)ORZ9ROXPH6+0/ &)0 589/471/412/353
'HKXPLGLI\LQJ9ROXPH 3LQWK 5.28
EER %WXK: 12
COP %WXK: /
SEER
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Application Area m2
Indoor Unit
LQFK
r/min
r/min
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/
27-42
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ĭ;
1500/1200/1050/900
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A 0.24
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2XWGRRU8QLW
2XWGRRU8QLW0RGHO
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Compressor Model
Compressor Oil
Compressor Type
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MITSUBISHI ELECTRIC (GUANGZHOU)COMPRESSOR CO.
LTD
61%)*$0&
39()96
Rotary
Compressor LRA. A 18.5
Compressor RLA A 4.9
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&RPSUHVVRU2YHUORDG3URWHFWRU 1NT11L-6578
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Condenser Pipe Diameter LQFK ĭ
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1HW:HLJKW lb 119.1
*URVV:HLJKW lb 132.3
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Service Manual
Model
Part Number
Power
6XSSO\
Rated Voltage V 
IAH24MD-D3DNA3D
700476
208/230
5DWHG)UHTXHQF\ Hz 60
3KDVHV 1
3RZHU6XSSO\0RGH 2XWGRRU
Cooling Capacity(Min Max) %WXK 21400(9600~25000)
Heating Capacity(Min Max) %WXK 23000(4300~26000)
&RROLQJ3RZHU,QSXW0LQ Max) W 1780(500~2650)
+HDWLQJ3RZHU,QSXW0LQ Max) W 2100(400~2750)
&RROLQJ&XUUHQW,QSXW A 7.9
+HDWLQJ&XUUHQW,QSXW A 9.3
5DWHG,QSXW W 2750
5DWHG&XUUHQW A 11.80
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EER %WXK: 12.00
COP %WXK: 10.95
SEER 18
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Application Area m2
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LQFK
r/min
r/min
10
27-42
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1450/1150/1020/950
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Indoor Unit Model
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Cooling Speed(S/H/M/L)
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Service Manual
2.2 Operation Characteristic Curve
Cooling Heating
0 102030405060708090100 1200 10203040506070 90 11080
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
.'&#+#'&s
Indoor DB 80˚F/WB 67˚F
Outdoor : DB 95˚F/WB75˚F
&'')#) $'-Turbo
#($&!+" +
.'&#+#'&s
Indoor : DB 70˚F/WB 60˚F
Outdoor : DB 47˚F/WB 43˚F
&'')#) $'-Turbo
#($&!+" +
2.3 Capacity Variation Ratio According to Temperature
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp. (˚F)
)%(oitaryticapaC
Outdoor temp. (˚F)
)%(oitaryticapaC
Conditions
Indoor: DB 80˚F/WB67˚F
Indoor air flow : Turbo
Pipe length: 24.6ft.
89.6 91.4 93.2 95 96.8 98.6 100.4 102.2 104 105.8 107.6 109.4
40
60
80
100
120
19.4 23 32 41 50
47
Conditions
Indoor: DB 70˚F
Indoor air flow : Turbo
Pipe length: 24.6ft.
Cooling Heating

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Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Instruction:
7,QOHWDQGRXWOHWSLSHWHPSHUDWXUHRIHYDSRUDWRU
7,QOHWDQGRXWOHWSLSHWHPSHUDWXUHRIFRQGHQVHU
33UHVVXUHDWWKHVLGHRIELJYDOYH
&RQQHFWLRQSLSHOHQJWK24.6ft.
Cooling:
Heating:
2.5 Noise Curve
Rated cooling condition)
(DB/WB) Model
3UHVVXUHRIJDVSLSH
connecting indoor
DQGRXWGRRUXQLW
,QOHWDQGRXWOHWSLSH
WHPSHUDWXUHRIKHDW
H[FKDQJHU
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of indoor
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RIRXWGRRU
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Compressor
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Indoor 2XWGRRU P (MPa) 7) 7)
80/67 95/75 24K 0.9 to 1.1 50 to 53.6 181.4 to 113 7XUER +LJK 72
5DWHGKHDWLQJFRQGLWLRQ)
(DB/WB) Model
3UHVVXUHRIJDVSLSH
connecting indoor
DQGRXWGRRUXQLW
,QOHWDQGRXWOHWSLSH
WHPSHUDWXUHRIKHDW
H[FKDQJHU
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of indoor
XQLW
)DQVSHHG
RIRXWGRRU
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(rps)
Indoor 2XWGRRU P (MPa) 7) 7)
70/60 47/43 24K 2.2 to 2.4 111.2 to 107.6 32 to 37.4 7XUER +LJK 80
50
55
40
45
35
Indoor side noise
Indoor fan motor rotating speed
Compressor frequency/Hz
Low Middle High Super High
60
50
40
30
20
0 204060 10080
Noise/dB(A)
Noise/dB(A)
Outdoor side noise

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Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
39.7 8.6
12.4
Unit:inch
3.54 2.56
Ɏ2.76Ɏ2.76
5.47 26.97 7.26

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Service Manual
3.2 Outdoor Unit
Unit:inch
14.6
16.8 38.6
36
24
15.7
31.1

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Service Manual
4. Refrigerant System Diagram
Refrigerant pipe diameter
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Indoor unit Outdoor unit
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
COOLING
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Compressor
Strainer
Strainer Strainer
Capillary
Capillary
Accumlator
Heat
exchang
(condenser)
Cooling only model
Cooling and heating model
STOP
This product is precharged with
refrigrant for a 25 feet of line set.
If MORE than 25 feet of line set is required, refer to your
Ideal-Air Service Manual for refrigrant charing chart.
For line sets between 25’ & 10’ in length, REMOVE .65 oz
of R410A refrigerant per line feed.
According to manufacturer’s specifications, under no
circumstances should the line set be shorter than
10’ in length.
If you need further assistance, please contact:
Ideal-Air Tech Support
877-943-3251
[e-mail]

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Service Manual
5. Electrical Part
5.1 Wiring Diagram
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Symbol Symbol Color Symbol Symbol Color Symbol Name
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YE Yellow BN Brown COMP Compressor
RD Red BU %OXH *URXQGLQJZLUH
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VT Violet OG Orange / /
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POWER
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MAGNETIC
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T-SENSOR
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V
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TEMP.SENSOR
OUTTUBE
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YEGN
G
FAN MOTOR
C1
AP1
EKV
FA
Electronic
WH
RT4
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OUTTUBE2
TEMP.SENSOR
MANUAL
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expansion
(OPTIONAL)
valve
PE
L2L2
BU
BN
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L1
L1
BLOCK
TERMINAL
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L2
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YEGN
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L1 L2
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INDOOR UNIT
N(1)
2
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TERMINAL
BLOCK
L
INDC1
WH OG
INDC2
REACTOR
L3 L3
WARNING
the voltage of terminal P(DC+) and
Please don't touch any terminal when
prevent the risk of electrical shock!
N(DC-) at AP1 is higher than 30V to
PROTECTOR
OVERLOAD

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Service Manual
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TEMP.SENSOR
OUTTUBE
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TEMP.SENSOR
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TEMP.SENSOR
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FAN MOTOR
4-WAY
C1
AP1
EKV
FA
Electronic
WH
RT4
0
OUTTUBE2
TEMP.SENSOR
MANUAL
YEGN
expansion
(OPTIONAL)
valve
PE
L2L2
VTVT
BU
BN
BK
L1
L1
BLOCK
TERMINAL
3
2
N(1)
L1
L2
BN
BU
G
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INDOOR UNIT
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3
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INDC1
WH OG
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WARNING
the voltage of terminal P(DC+) and
Please don't touch any terminal when
prevent the risk of electrical shock!
N(DC-) at AP1 is higher than 30V to
PROTECTOR
OVERLOAD

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Service Manual
5.2 PCB Printed Diagram
Indoor Unit
IAC24MD-D3DNA3D/I IAH24MD-D3DNA3D/I
ƔTop view
ƔBottom view
1 DC fan interface
2$XWREXWWRQ
3Up and down swing terminal
interface
4 Display terminal interface
5-XPSHUFDS
6 Ambient temp. sensor
77XEHWHPSVHQVRU
8,'8DQG2'8FRPPXQLFDWLRQ
interface
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10 )XVH
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12 (DUWKZLUHWHUPLQDOLQWHUIDFH
123
4
5
6789
10
11
12

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Service Manual
Outdoor Unit
ƔTop view
ƔBottom view
1234567
8
9
10
11
12
13
1Compressor wiring
connection terminal
2
2'8KHDWH[FKDQJHU
middle copper pipe
temp. sensor terminal
3&RPSUHVVRURYHUORDG
protection terminal
4ODU temp. sensor
terminal
5(;9WHUPLQDO
62XWGRRUIDQWHUPLQDO
7)RXUZD\YDOYH
terminal
8&KDVVLVHOHFWULFKHDWLQJ
wiring terminal
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ZLWK,'8
10 3RZHUVXSSO\OLYHZLUH
11 (DUWKZLUH
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wire
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Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Introduction for Icons on Display Screen
Introduction for Buttons on Remote Controller
Auto mode
Cool mode
Heat mode
Fan mode
Dry mode
Clock
Light
Child lock
TIMER ON/TIMER OFF
Up&down swing
:Indoor ambient temp.
:Set temp.
:Outdoor ambient temp.
Sleep mode
Set temperature
Send signal
Turbo mode
Set time
X-fan mode
Set fan speed
ON/OFF Button
2
3
1
5
6
4
8
9
7
11
12
10
MODE Button
+/- Button
FAN Button
TIMER ON/TIMER-OFF Button
X-FAN Button
TEMP Button
LIGHT Button
SLEEP Button
CLOCK Button
TURBO Button
Button
2
6
8
3
9
10
7
5
12 11
4
1
Operation mode
Temp. display type
1. ON/OFF Button
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2. MODE Button
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AUTO COOL DRY FAN HEAT
Operation mode
Temp. display type
Buttons on Remote Controller
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