Post on 17-Apr-2018
transcript
SERVICE MANUAL
• This manual describes onlyservice data of the indoorunits.
[Model names]
PEA-RP200GAPEA-RP250GAPEA-RP400GAPEA-RP500GA
CONTENTS
1. TYPES OF CONNECTED OUTDOOR UNITS····22. SAFETY PRECAUTION ···································33. PART NAMES AND FUNCTIONS····················84. SPECIFICATIONS ··········································105. DATA·······························································116. OUTLINES AND DIMENSIONS ·····················137. WIRING DIAGRAM·········································168. REFRIGERANT SYSTEM DIAGRAM ············189. TROUBLESHOOTING····································19
10. SERVICE DATA (PARTS NAME) ···················30Indoor unit
Remote controller
SPLIT-TYPE, HEAT PUMPAIR CONDITIONERS 2007
2
1 TYPES OF CONNECTED OUTDOOR UNITS
Indoor Unit List
Indoor unit Outdoor unitPEA - RP200GAPEA - RP250GAPEA - RP400GAPEA - RP500GA
PUHZ-P200YHA / PUHZ-RP200YHA2 PUHZ-P250YHA / PUHZ-RP250YHA2
PUHZ-P200YHA x 2 / PUHZ-RP200YHA2 x 2PUHZ-P250YHA x 2 / PUHZ-RP250YHA2 x 2
Standard Model Steel fan
PEA-RP200GA
PEA-RP250GA
PEA-RP400GA
PEA-RP500GA
PEA-RP200GA.TH-AF
PEA-RP250GA.TH-AF
PEA-RP400GA.TH-AF
PEA-RP500GA.TH-AF
PEA-RP200GA.TH-AFMF
PEA-RP250GA.TH-AFMF
-
-
Model name
Specification
3
SAFETY PRECAUTION2
Cautions for units utilising refrigerant R410A
CAUTIONS RELATED TO NEW REFRIGERANT
Use new refrigerant pipes.
Make sure that the inside and outside of refrige-
rant piping is clean and it has no contamination
such as sulfur hazardous for use, oxides, dirt,
shaving particles, etc.
In addition, use pipes with specified thickness.
Store the piping to be used during installation
indoors and keep both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
In case of using the existing pipes for R22, be careful with
the followings.
á Be sure to perform replacement operation
before test run.
á Avoid using thin pipes.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Keep the tools with care.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410AContamination inside refrigerant piping can cause deterio-
ration of refrigerant oil etc.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enter, that can cause deterio-
ration of refrigerant oil etc.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
[1] Cautions for service(1) Perform service after collecting the refrigerant left in unit completely.(2) Do not release refrigerant in the air.(3) After completing service, charge the cycle with specified amount of refrigerant.(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
4
[2] Storage of Piping Material
(1) Storage location
Store the pipes to be used indoors. (Warehouse at site or owner’s warehouse)Storing them outdoors may cause dirt, waste, or water to infiltrate.
(2) Pipe sealing before storage
Both ends of the pipes should be sealed until immediately before brazing.Wrap elbows and T’s in plastic bags for storage.
* The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil (such as Suniso). Water
infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure. Piping materials must be stored
with more care than with the conventional refrigerant pipes.
OK
OK
NG
NG
5
[3] Brazing
No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt,
etc.) does not enter the refrigerant circuit.
Example: Inner state of brazed section
When non-oxide brazing was not used When non-oxide brazing was used
Items to be strictly observed:
1. Do not conduct refrigerant piping work outdoors on a rainy day.
2. Apply non-oxide brazing.
3. Use a brazing material (BCuP-3) which requires no flux when brazing between copper pipes or between a copper
pipe and copper coupling.
4. If installed refrigerant pipes are not immediately connected to the equipment, then braze and seal both ends of them.
Reasons:
1. The new refrigerant oil is 10 times more hygroscopic than the conventional oil. The probability of a machine failure if
water infiltrates is higher than with conventional refrigerant oil.
2. A flux generally contains chlorine. A residual flux in the refrigerant circuit may generate sludge.
Note:
¥ Commercially available antioxidants may have adverse effects on the equipment due to its residue, etc. When
applying non-oxide brazing, use nitrogen.
6
[4] Airtightness Test
No changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407C leakage.
Halide torch R22 leakage detector
Items to be strictly observed:
1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipmentÕs airtightness, taking
temperature variations into account.
2. When investigating leakage locations using a refrigerant, be sure to use R407C.
3. Ensure that R407C is in a liquid state when charging.
Reasons:
1. Use of oxygen as the pressurized gas may cause an explosion.
2. Charging with R407C gas will lead the composition of the remaining refrigerant in the cylinder to change and this
refrigerant can then not be used.
Note:
¥ A leakage detector for R407C is sold commercially and it should be purchased.
[5] Vacuuming
1. Vacuum pump with check valve
A vacuum pump with a check valve is required to prevent the vacuum pump oil from flowing back into the refrigerant
circuit when the vacuum pump power is turned off (power failure).
It is also possible to attach a check valve to the actual vacuum pump afterwards.
2. Standard degree of vacuum for the vacuum pump
Use a pump which reaches 0.5 Torr (500 MICRON) or below after 5 minutes of operation.
In addition, be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil. If the
vacuum pump is not properly maintained, the degree of vacuum may be too low.
3. Required accuracy of the vacuum gauge
Use a vacuum gauge that can measure up to 5 Torr. Do not use a general gauge manifold since it cannot measure a
vacuum of 5 Torr.
4. Evacuating time
¥ Evacuate the equipment for 1 hour after Ð755 mmHg (5 Torr) has been reached.
¥ After envacuating, leave the equipment for 1 hour and make sure the that vacuum is not lost.
5. Operating procedure when the vacuum pump is stopped
In order to prevent a backflow of the vacuum pump oil, open the relief valve on the vacuum pump side or loosen the
charge hose to drawn in air before stopping operation.
The same operating procedure should be used when using a vacuum pump with a check valve.
NG NG
7
[6] Additional refrigerant chargeWhen charging directly from cylinder· Check that cylinder for R410A on the market is syphon type.· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
[7] Service toolsUse the below service tools as exclusive tools for R410A refrigerant.
No. Specifications
1 Gauge manifold ·Only for R410A
·Use the existing fitting specifications. (UNF1/2)
·Use high-tension side pressure of 5.3MPa·G or over.
2 Charge hose ·Only for R410A
·Use pressure performance of 5.09MPa·G or over.
3 Electronic scale
4 Gas leak detector ·Use the detector for R134a, R407C or R410A.
5 Adaptor for reverse flow check ·Attach on vacuum pump.
6 Refrigerant charge base
7 Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)
Cylinder with syphon
8 Refrigerant recovery equipment
Gravimeter
Unit
8
3 PART NAMES AND FUNCTIONS
Remote controllerOnce the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
Operation buttons
Indoor UnitPEA-RP200GAPEA-RP250GAPEA-RP400GAPEA-RP500GA
Air intake duct flange
Air outlet duct flange
Air outlet
Air intake(sucks the air inside the room into the unit)
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION CLEAR
TEST
TEMP.
MENU
BACK DAYMONITOR/SET
CLOCK
ON/OFF
Set Temperature buttons
Down
Up
Timer Menu button(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button(Set Day button)
Opening thedoor.
ON/OFF button
Fan Speed button
Filter button(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button( Operation button)
To preceding operationnumber.
Ventilation button( Operation button)
To next operation number.
9
Display
For purposes of this explanation,all parts of the display are shownas lit. During actual operation, onlythe relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODEAFTER
TIMERTIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTERFUNCTION
ONLY1Hr.
WEEKLYSIMPLE
AUTO OFF
Identifies the current operationShows the operating mode, etc.* Multilanguage display is sup-
ported.
“Centrally Controlled” indicatorIndicates that operation of the re-mote controller has been prohib-ited by a master controller.
“Timer Is Off” indicatorIndicates that the timer is off.
Temperature SettingShows the target temperature.
Day-of-WeekShows the current day of the week.
Time/Timer DisplayShows the current time, unless the simple or Auto Offtimer is set.If the simple or Auto Off timer is set, shows the timeremaining.
“Sensor” indicationDisplayed when the remote controller sensor is used.
“Locked” indicatorIndicates that remote controller but-tons have been locked.
“Clean The Filter” indicatorComes on when it is time to clean thefilter.
Timer indicatorsThe indicator comes on if the corre-sponding timer is set.
Up/Down Air Direction indica-torThe indicator shows the direc-tion of the outcoming airflow.
“One Hour Only” indicatorDisplayed if the airflow is set toweak and downward during COOLor DRY mode. (Operation variesaccording to model.)The indicator goes off after onehour, at which time the airflow di-rection also changes.
Room Temperature displayShows the room temperature.
Louver displayIndicates the action of the swinglouver. Does not appear if thelouver is stationary.
(Power On indicator)Indicates that the power is on.
Fan Speed indicatorShows the selected fan speed.
Ventilation indicatorAppears when the unit is running inVentilation mode.
Caution Only the Power on indicator lights when the unit is stopped and power supplied to the unit. If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”
message.If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not present at the parent unit.
When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication(For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
10
4 SPECIFICATIONS
Model name
Cooling
1.00 2.0
Heating
1.002.0
HWD
HiLo
kWA
CMML/s
CMML/sPa
mmAq
dB(A)dB(A)
mmmmmmkglbs
PEA-RP200GA PEA-RP250GA
3PH 4W 50Hz 380-415V
Galvanized steel Cross fin coil
Centrifugal (direct) o2 0.77 65
1083 52 867 150 15
Remote control & built in 51 48 R1 400 1400 634 70 154
Cooling
1.18 2.3
Heating
1.182.3
3PH 4W 50Hz 380-415V
Galvanized steel Cross fin coil
Centrifugal (direct) o2 0.77 80
1333 64
1067 150 15
Remote control & built in 52 49 R1 400 1600 634 77 169
Power supply (phase, cycle,voltage)InputRunning current
External finish Heat exchanger
Operation control & Thermostat
Sound level
Drain connection
Dimensions
Weight
Mode
Fan (drive) o No.Fan motor output
Airflow
External static pressure
Hi
Lo
Model name
Cooling
1.553.8
Heating
1.553.8
HWD
kWA
CMML/sPa
mmAq
dB(A)
mmmmmmkglbs
PEA-RP400GA PEA-RP500GA
3PH 4W 50Hz 380-415V
Galvanized steel Cross fin coil
Centrifugal (direct) o2 1.3 120
2,000 150 15
Remote control & built in 52 R1 595 1947 764 130 286
Cooling
2.845.4
Heating
2.845.4
3PH 4W 50Hz 380-415V
Galvanized steel Cross fin coil
Centrifugal (direct) o2 1.8 160
2,667 150 15
Remote control & built in 53 R1 595 1947 764 133 293
Power supply (phase, cycle,voltage)InputRunning current
External finish Heat exchanger
Operation control & ThermostatSound levelDrain connection
Dimensions
Weight
Mode
Fan (drive) o No.Fan motor output
Airflow
External static pressure
Fan
Fan
11
DATA5
5-1. Sound DataIndoor units
Indoor unit
Position measurement
Measurement point
Inlet
Outlet
1.5m
2m1m
PEA-RP200,250: Upper High/Lower Low
SPLdB(A) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz
51 55 54 51 49 47 43 33 27
48 50 50 47 46 44 40 29 21
52 56 55 52 50 48 44 34 28
49 51 51 48 47 45 41 30 22
53 55 54 51 50 48 44 40 31
OCTAVE BAND FREQ.HzModel
52 53 51 52 50 46 44 39 30
PEA-RP200GA
PEA-RP250GA
PEA-RP500GA
PEA-RP400GA
12
5-2. Fan Performance CurveIndoor units
PEA-RP200GAFan Performance Curve 50Hz
PEA-RP250GAFan Performance Curve 50Hz
PEA-RP400GAFan Performance Curve 50Hz
PEA-RP500GAFan Performance Curve 50Hz
70.0 80.0 100.0 110.0 120.0 130.090.0
(Pa)
(Pa) (Pa)
Ext
erna
l sta
tic p
ress
ure
Air flow
(CMM)0
50
100
150
200
300
250
110.0100.0 120.0 130.0 140.0 150.0 160.0 170.0
(Pa)
Ext
erna
l sta
tic p
ress
ure
Air flow
(CMM)0
50
100
150
200
350
300
250
Hi
Lo
45.0 50.0 55.0 60.0 65.0 70.0
Hi
Lo
0
50
100
150
200
250
300
0
50
100
150
200
250
60.0 65.0 70.0 75.0 80.0 85.0 90.0
Ext
erna
l sta
tic p
ress
ure
Air flow Air flow(CMM) (CMM)
Ext
erna
l sta
tic p
ress
ure
13
OUTLINES AND DIMENSIONS6
Ret
urn
air
sens
or
ARubb
er b
ush
<Rem
ote
cont
rolle
r wiri
ng>
Rubb
er b
ush
<Out
door
uni
tco
nnec
tion
wirin
g>
Rubb
er b
ush
<Pow
er s
uppl
ywi
ring>
A
4- ø
12 H
oles
Dra
in R
1
Top
vie
w
Con
trol b
ox
Ret
urn
air
duct
flan
ge
Sup
ply
air
duct
flan
ge<F
or h
angi
ng b
olt M
10>
[Fie
ld s
uppl
y]
22- ø
3.1
Hol
es
24- ø
3 H
oles
Ref
riger
ant p
ipe
ø9.5
2 (3
/8 b
raze
)
Ref
riger
ant p
ipe
ø25.
4 (1
bra
ze)
<A
cces
sory
>2p
cs.
· Pip
e co
ver
······
······
······
······
······
····
(F
or d
ew c
onde
nsat
ion
prev
entio
n of
lo
cal p
ipin
g an
d un
it co
nnec
tion.
) 1pc.
· Rem
ote
cont
rolle
r····
······
······
······
··
Ret
urn
air
Left
side
vie
w
Sup
ply
air
Fro
nt v
iew
75
55
129 70
42
124
34
131
530
50
95 250 11
7x13
0(=9
10)
10
130
130
4545
3131
1102
200
10
8x13
0(=1
040)
1300
20
199
100
40
20
462
144
1284
400
155
1000
105
4012
6040
1340
1400
565
39
22 330145 89
35 130 130 35
634
26273
1054 10
376
25 100 100 25
Unit : mmPEA-RP200GA
14
Unit : mmPEA-RP250GA
Rub
ber b
ush
<Rem
ote
cont
rolle
r wiri
ng>
Rub
ber b
ush
<Out
door
uni
tco
nnec
tion
wiri
ng>
Rub
ber b
ush
<Pow
er s
uppl
yw
iring
>
A
A
4- ø
12 H
oles
Dra
in R
1
Top
vie
w
Con
trol b
ox
22- ø
3.1
Hol
es
<For
han
ging
bol
t M10
>[F
ield
sup
ply]Ret
urn
air
duct
flan
ge
Sup
ply
air
duct
flan
ge
26- ø
3 H
oles
Left
side
vie
w
Sup
ply
air
Ret
urn
air
Fro
nt v
iew
Ret
urn
air
sens
or
<A
cces
sory
>·P
ipe
cove
r ···
······
······
······
······
······
2pc
s.
(For
dew
con
dens
atio
n pr
even
tion
of
loca
l pip
ing
and
unit
conn
ectio
n.)
·Rem
ote
cont
rolle
r ···
······
······
······
· 1pc
.
Ref
riger
ant p
ipe
ø12.
7 (1
/2 b
raze
)
Ref
riger
ant p
ipe
ø25.
4 (1
bra
ze)
42
144 145
75
55
70129
124
131
5053
0
34
130
95 250 1110
6613
02
1484
7x13
0(=9
10)
130
4545
200
20
100 20
199
40
1500
462
669X
130(
=117
0)
10
2510010025
1010
1540
4014
6040
255
205
376
1000
1600
73 262
40039
565
5463
4
35 13089
33022
130 35
15
PEA-RP400,500GA
45
Refri
gera
nt p
ipe
PEA-
RP40
0GA
: ø9.
52 (3
/8 b
raze
)PE
A-RP
500G
A :
ø12.
7 (1
/2 b
raze
)
[2
plac
es (*
2 pa
rt)]
*2*1 *2*1
Ref
riger
ant p
ipe
ø25.
4 (1
bra
ze)
[2 p
lace
s (*
1 pa
rt)]
Ret
urn
air s
enso
r(2
pla
ces)
Dra
in R
1
24-
ø3.1
HO
LES
36- ø
3 H
OLE
S
Left
side
vie
wF
ront
vie
w
Top
vie
w
Ret
urn
air
Sup
ply
air
4- ø
15 H
OLE
S<F
or h
angi
ng b
olt M
12>
[Fie
ld s
uppl
y]
Ret
urn
air d
uct f
lang
e
Con
trol b
ox
Sup
ply
air d
uct f
lang
e
A
Rub
ber b
ush
<Rem
ote
cont
rolle
r wiri
ng>
Rub
ber b
ush
<Pow
er s
uppl
y w
iring
>
Rub
ber b
ush
<Out
door
uni
t con
nect
ion
wiri
ng> A
<A
cces
sory
>·P
ipe
cove
r ···
······
······
······
······
······
4pc
s.
(For
dew
con
dens
atio
n pr
even
tion
of
loca
l pip
ing
and
unit
conn
ectio
n.)
·Rem
ote
cont
rolle
r ···
······
······
······
· 1pc
.81 117 156 117
10
2018
40
10
4060
60
61
60
4040
1800
1880
5066
4
52522
10222.5
120
4X120(=480) 22.5
595
1824
5076
4
280
1125
395
340188 22
1947
5704013013040
10
33 2913
01
2X
13
0(=
15
60
)2914
916
18
100
42.5
130
8X13
0(=1
040)
42.5
10
203 320 141
20
425 59
700
39
Unit : mm
16
7 WIRING DIAGRAM
PEA-RP200,250GA
OU
TD
OO
R U
NIT
CIR
CU
IT B
RE
AK
ER
(FIE
LD S
UP
PLY
)P
EA
-RP
200,
250G
A:1
5A
DSR
DSA
(3P
)(H
i)
C02
(6P
)(L
o)
C01
C01
54
TH
5
TH
2
TH
1
IND
OO
R U
NIT
PO
WE
R S
UP
PLY
3N~
PE
380/
400/
415V
50H
z
BLACK
WHITE
RED
N
BLA
CK
WH
ITE
RE
DT
B2
L3L2L1
PE
52F
Hi
Lo
321
52F
1 2 3
MF1
TB
6LC
D
RE
MO
TE C
ON
TRO
LLE
R
FB
TB
4
S3
S2
S1
X6
X5
X4
37
51
FA
N
ZNR
FU
SE
41
23
SW
2O
FF
ON
5
TA
B1
31C
NS
K
21C
N2S
DC
13.1
V
CN
2D
CN
90
CN
22
CN
2L
CN
DK
CN
D
CN
32
CN
31
CN
5112
34
5
31
31
31
12
DC
13.1
V
LED
1
LED
2
LED
3
21 21 21
21 33 654 987
31 2
CN
3C
CN
20
CN
21
CN
41
CN
29
1 2 3 4 1 2 1 221
1 2
TB
5
Hi
52F
Lo52F
X1
X1
X149
F51
F
X6
X5
X4
12
34
5
SW
1O
FF
ON
SW
EO
FF
ON
SW
ITC
H (
MO
DE
L S
ELE
CT
ION
)S
WIT
CH
(C
AP
AC
ITY
CO
DE
)C
ON
NE
CT
OR
(E
ME
RG
EN
CY
OP
ER
AT
ION
)
SN
BB
OA
RD
1Z
NR
5~7
VA
RIS
TO
RD
SA
,DS
RA
RR
ES
TE
R
IND
OO
R U
NIT
NA
ME
SY
MB
OL
CO
ND
/EV
A T
EM
P
LIQ
UID
PIP
E T
EM
PR
OO
M T
EM
P
52F
Hi
MA
GN
ET
IC C
ON
TA
CT
OR
(IN
DO
OR
FA
N M
OT
OR
<H
IGH
SP
EE
D>
)
SU
RG
E K
ILLE
RC
R1,
2 SW
1
TH
5
LED
(T
RA
NS
MIS
SIO
N<
IND
OO
R·O
UT
DO
OR
>)
LED
3LE
D (
PO
WE
R S
UP
PLY
<R
EM
OT
E C
ON
TR
OLL
ER
>)
LED
2LE
D (
PO
WE
R S
UP
PLY
)LE
D1
SW
ES
W2
X4-
6A
UX
ILIA
RY
RE
LAY
VA
RIS
TO
RZ
NR
FU
SE
(T
6.3A
L250
V)
FU
SE
TH
ER
MIS
TO
R
TE
RM
INA
L B
LOC
KIN
TE
RN
AL
TH
ER
MO
ST
AT
(IN
DO
OR
FA
N M
OT
OR
)
OV
ER
CU
RR
EN
T R
ELA
Y (
IND
OO
R F
AN
MO
TO
R)
FA
N M
OT
OR
(IN
DO
OR
)
TH
2T
H1
TB
2,4,
549
F
51F
MF
1
52F
LoM
AG
NE
TIC
CO
NT
AC
TO
R (
IND
OO
R F
AN
MO
TO
R<
LOW
SP
EE
D>
)
AU
XIL
IAR
Y R
ELA
YX
1
FE
RR
ITE
CO
RE
FB
BO
AR
DCO
NTRO
LLER
IND
OO
R
CN
2LC
N31
CN
90C
N51
CN
41C
N32
CO
NN
EC
TO
R (
DR
AIN
SE
NS
OR
)C
ON
NE
CT
OR
(R
EM
OT
E S
WIT
CH
)C
ON
NE
CT
OR
(H
A T
ER
MIN
AL-
A)
CO
NN
EC
TO
R (
CE
NT
RA
LLY
CO
NT
RO
L)C
ON
NE
CT
OR
(W
IRE
LES
S R
EM
OT
E C
ON
TR
OLL
ER
)
CO
NN
EC
TO
R (
LOS
SN
AY
)
4.In
door
and
out
door
con
nect
ing
wire
s ar
e m
ade
with
pol
ariti
es,m
ake
sure
m
atch
ing
wiri
ng a
nd te
rmin
al.
5.E
mer
genc
y op
erat
ion
If
a tr
oubl
e oc
curs
with
eith
er th
e re
mot
e co
ntro
ller
or th
e in
door
mic
roco
m-
p
uter
and
no
othe
r tr
oubl
e ex
ists
, em
erge
ncy
oper
atio
n fo
r co
olin
g or
hea
ting
c
an b
e pe
rfor
med
by
chan
ging
the
setti
ng o
f con
nect
or (
SW
E)
"ON
" on
the
in
door
con
trol
ler
boar
d.
SW
E :
ON
/ In
door
fan
is r
unni
ng h
igh
spee
d.
TE
RM
INA
L B
LOC
KT
B6
SY
MB
OL
RE
MO
TE
CO
NT
RO
LLE
R
NA
ME
SN
B B
OA
RD
1
RE
MO
TE
CO
NTR
OLL
ERB
OA
RD
PO
WE
R B
OA
RD
IND
OO
R
IND
OO
RC
ON
TR
OLL
ER
BO
AR
D
Not
e:1.
The
dot
ted
lines
sho
w fi
eld
wiri
ng.
2
.Col
or o
f ear
th w
ire is
yel
low
and
gre
en tw
istin
g.
3.S
peci
ficat
ion
subj
ect t
o ch
ange
with
out n
otic
e.
51F
Cau
tion,
1.T
o pr
otec
t fan
mot
or fr
om a
bnor
mal
cur
rent
,ove
r cu
rren
t rel
ays
is in
stal
led.
The
refo
re, d
o no
t cha
nge
fact
ory
set v
alue
of o
ver
curr
ent r
elay
s.
6
. m
ark
is c
onne
ctor
. m
ark
is te
rmin
al.
CR1
CR2
ZN
R5~
7
TO
OU
TD
OO
R U
NIT
CO
NN
EC
TIN
G W
IRE
S
(P
OLA
R)
17
PEA-RP400,500GA
GREE
N/YE
LLOW
IND
OO
R U
NIT
OU
TD
OO
R U
NIT
OU
TD
OO
R U
NIT
TA
B1
TA
B1
FA
NC
ND
K3
11
57
3
X4
X5
X6
CN
20
CN
21
CN
41
CN
29
1 2 3 4 1 2 1 221
CN
2D
CN
90
CN
22
CN
2L
CN
D
CN
32
CN
31
CN
5112
34
5
FU
SE
ZNR
31
31
12
DC
13.1
V
LED
1
LED
2
LED
3
21 21 21
21 33 654 987
31 2
CN
3C
31C
NS
K
21C
N2S
DC
13.1
V
31C
NS
K
21C
N2S
DC
13.1
V
CN
2D
CN
90
CN
22
CN
2L
FA
NC
ND
KC
ND
CN
32
CN
31
CN
5112
34
5
FU
SE
ZNR
31
31
31
12
DC
13.1
V
15
73
X4
X5
X6
LED
1
LED
2
LED
3
21 21 21
21 33 654 987
31 2
CN
3C
CN
20
CN
21
CN
41
CN
29
1 2 3 4 1 2 1 221
FB
11
S1
1 2
REMO
TE C
ONTR
OLLE
R
S2
S3
TB
5
TB
6LC
D
X1
FB
21
S1
S2
S3
X2
TH
1-1
TH
2-1
TH
5-1
TH
5-2
TH
2-2
TH
1-2
TB
4-2
TB
4-1
FB
12
FB
22
X4
X5
X6
X4
X5
X6
51F
BLU
E
PO
WE
R S
UP
PLY
3N~
PE
380/
400/
415V
50H
z
CIR
CU
IT B
RE
AK
ER
(FIE
LD S
UP
PLY
)P
EA
-RP
400,
500G
A:1
5A
BLACKWHITE
RED
DS
RD
SA
N
BLA
CK
WH
ITE
RE
DT
B2
L3L2L1
PE
52F
C01
C02
1 2 3
MF1
1 2 3
52F
C01
5 4
X01
X02
49F
SW
EO
FF
ON3
45
SW
1O
FFO
N
5O
NO
FF
34
12 2
1
SW
EO
FF
ON34
5
SW
1O
FFO
N
5O
NO
FFS
W2
34
12 2
1
SW
2
AU
XIL
IAR
Y R
ELA
YX
4-6
MF
151
F
49F
TB
2,4-
1,4-
2,5
TH
1-1,
1-2
TH
2-1,
2-2
FA
N M
OT
OR
(IN
DO
OR
)O
VE
R C
UR
RE
NT
RE
LAY
(IN
DO
OR
FA
N M
OT
OR
)
INT
ER
NA
L T
HE
RM
OS
TA
T (
IND
OO
R F
AN
MO
TO
R)
TE
RM
INA
L B
LOC
K
TH
ER
MIS
TO
R
IND
OO
R U
NIT F
US
EF
US
E (
T6.
3AL2
50V
)Z
NR
VA
RIS
TO
R
TH
5-1,
5-2
CR
SU
RG
E K
ILLE
R
MA
GN
ET
IC C
ON
TA
CT
OR
(IN
DO
OR
FA
N M
OT
OR
)52
F
RO
OM
TE
MP
LIQ
UID
PIP
E T
EM
PC
ON
D/E
VA
TE
MP
FE
RR
ITE
CO
RE
FB
11,F
B12
FB
21,F
B22
IND
OO
RCO
NTRO
LLER
BO
AR
DX1,
2A
UX
ILIA
RY
RE
LAY
NA
ME
SY
MB
OL
SN
BB
OA
RD
1Z
NR
5~7
VA
RIS
TO
RD
SA
,DS
RA
RR
ES
TE
R
SW
2S
WE
LED
1LE
D (
PO
WE
R S
UP
PLY
)LE
D2
LED
(P
OW
ER
SU
PP
LY<
RE
MO
TE
CO
NT
RO
LLE
R>
)LE
D3
LED
(T
RA
NS
MIS
SIO
N<
IND
OO
R·O
UT
DO
OR
>)
SW
ITC
H (
MO
DE
L S
ELE
CT
ION
)S
W1
SW
ITC
H (
CA
PA
CIT
Y C
OR
D)
CO
NN
EC
TO
R (
EM
ER
GE
NC
Y O
PE
RA
TIO
N)
OU
TD
OO
R U
NIT
TE
RM
INA
L B
LOC
KN
AM
ES
YM
BO
LT
B3,
TB
8
CN
2LC
N31
CN
90C
N51
CN
41C
N32
CO
NN
EC
TO
R (
DR
AIN
SE
NS
OR
)C
ON
NE
CT
OR
(R
EM
OT
E S
WIT
CH
)C
ON
NE
CT
OR
(H
A T
ER
MIN
AL-
A)
CO
NN
EC
TO
R (
CE
NT
RA
LLY
CO
NT
RO
L)C
ON
NE
CT
OR
(W
IRE
LES
S R
EM
OT
E C
ON
TR
OLL
ER
)
CO
NN
EC
TO
R (
LOS
SN
AY
)
RE
MO
TE
CO
NT
RO
LLE
R
TE
RM
INA
L B
LOC
KN
AM
ES
YM
BO
LT
B6
4.In
door
and
out
door
con
nect
ing
wire
s ar
e m
ade
with
pol
ariti
es,m
ake
sure
mat
chin
g w
iring
and
term
inal
.5.
Em
erge
ncy
oper
atio
n
If a
trou
ble
occu
rs w
ith e
ither
the
rem
ote
cont
rolle
r or
the
indo
or m
icro
com
-
put
er a
nd n
o ot
her
trou
ble
exis
ts, e
mer
genc
y op
erat
ion
for
cool
ing
or h
eatin
g
can
be
perf
orm
ed b
y ch
angi
ng th
e se
tting
of c
onne
ctor
(S
WE
) "O
N"
on th
e
indo
or c
ontr
olle
r bo
ard.
S
WE
:O
N /
Indo
or fa
n is
run
ning
hig
h sp
eed.
(No.
2)
IND
OO
RCO
NTRO
LLER
BO
AR
D(N
o.1)
RE
MO
TE
CONT
ROLL
ERB
OA
RD
IND
OO
RP
OW
ER
BO
AR
D
(No.
1)
(No.
2)
IND
OO
RCO
NTRO
LLER
BO
AR
D(N
o.2)
TO
OU
TD
OO
R U
NIT
CO
NN
EC
TIN
G W
IRE
S (
PO
LAR
) TO
OU
TD
OO
R U
NIT
CO
NN
EC
TIN
G W
IRE
S (
PO
LAR
)
SN
B B
OA
RD
1
(No.
1)IN
DO
OR
POW
ER B
OARD
Not
e:1.
The
dot
ted
lines
sho
w fi
eld
wiri
ng.
2.C
olor
of e
arth
wire
is y
ello
w a
nd g
reen
twis
ting.
3.S
peci
ficat
ion
subj
ect t
o ch
ange
with
out n
otic
e.
51F
6.
mar
k is
con
nect
or.
mar
k is
term
inal
.
Cau
tion,
1.T
o pr
otec
t fan
mot
or fr
om a
bnor
mal
cur
rent
,ove
r cu
rren
t rel
ays
is in
stal
led.
The
refo
re, d
o no
t cha
nge
fact
ory
set v
alue
of o
ver
curr
ent r
elay
s.
CR
ZN
R5~
7
18
PEA-RP200GA PEA-RP250GAPEA-RP400GA PEA-RP500GA
Unit : mm
Pipe temperaturethermistor/liquid(TH2)
Distributor
Condenser/evaporatortemperature thermistor(TH5)
Room temperaturethermistor (TH1)
Refrigerant flow in cooling
Refrigerant flow in heating
Strainer
Strainer
Heat exchanger
Refrigerant GAS pipe connectionBrazing
Refrigerant LIQUID pipe connectionBrazing
8 REFRIGERANT SYSTEM DIAGRAM
19
9 TROUBLESHOOTING
<Error code display by self-diagnosis and actions to be taken for service (summary)>Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit.Actions to be taken for service and the inferior phenomenon reoccurrence at field are summarized in the table below. Checkthe contents below before investigating details.
9-1. TROUBLESHOOTING
Unit conditions at service Error code Actions to be taken for service (summary)
The inferior phenomenon isreoccurring.
Displayed
Not displayed
Judge what is wrong and take a corrective action according to “SELF-DIAGNOSIS ACTION TABLE” (9-2).
Identify the cause of the inferior phenomenon and take a corrective action according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (9-3).
The inferior phenomenon is not reoccurring.
Logged
Not logged
1Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise and etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the inferior phenomenon occurred, and wiring related. 2Reset error code logs and restart the unit after finishing service.3There is no abnormality in electrical components, controller boards, and remote controller.
1Recheck the abnormal symptom.2Identify the cause of the inferior phenomenon and take a corrective action according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (9-3).3Continue to operate unit for the time being if the cause is not ascertained.4There is no abnormality in electrical components, controller boards, remote controller etc.
20
9-2. SELF-DIAGNOSIS ACTION TABLENote: Refer to the manual of outdoor unit for the details of display
such as F, U, and other E.
Error Code Meaning of error code and detection method Cause Countermeasure
P1
Abnormality of room temperature thermistor (TH1)1 The unit is in three-minute resume
prevention mode if short/open of thermistor is detected. Abnormal if theunit does not reset normally after threeminutes. (The unit returns to normaloperation, if it has normally reset.)
2 Constantly detected during cooling, drying, and heating operation.Short: 90: or moreOpen: -40: or less
1 Defective thermistor characteristics.
2 Contact failure of connector(CN20) on the indoor controllerboard. (Insert failure)
3 Breaking of wire or contact failure of thermistor wiring.
4 Defective indoor controllerboard.
1~3 Check resistance value of thermistor.0: ······15.0k"10: ····9.6k"20: ····6.3k"30: ····4.3k"40: ····3.0k"If you put force on (draw or bend) the lead wirewith measuring resistance value of thermistorbreaking of wire or contact failure can bedetected.2 Check contact failure of connector (CN20) on
the indoor controller board. Refer to 9-6.Turn the power on again and check restartafter inserting connector again.
4 Check room temperature display on remotecontroller.Replace indoor controller board if there isabnormal difference with actual room temperature.
Turn the power off, and on again to operate after check.
P2
Abnormality of pipe temperature thermistor/Liquid (TH2)1 The unit is in three-minute resume
prevention mode if short/open of thermistor is detected. Abnormal if theunit does not reset normally after threeminutes. (The unit returns to normaloperation, if it has normally reset.)
2 Constantly detected during cooling, drying, and heating (except defrosting)operation.Short: 90: or moreOpen: -40: or less
1 Defective thermistor characteristics.
2 Contact failure of connector(CN21) on the indoor controllerboard. (Insert failure)
3 Breaking of wire or contact failure of thermistor wiring.
4 Defective refrigerant circuit iscausing thermistor temperatureof 90: or more or -40: orless.
5 Defective indoor controller board.
1~3 Check resistance value of thermistor.For characteristics, refer to (P1) above.2 Check contact failure of connector (CN21) on
the indoor controller board. Refer to 9-6. Turnthe power on and check restart after insert-ing connector again.
4 Check pipe <liquid> temperature with remotecontroller in test run mode. If pipe <liquid>temperature is exclusively low (in coolingmode) or high (in heating mode), refrigerantcircuit may have defective.
5 Check pipe <liquid> temperature with remotecontroller in test run mode. If there is exclusivedifference with actual pipe <liquid> temperature,replace indoor controller board.
Turn the power off, and on again to operate after check.
P4
Abnormality of drain sensor (DS)1 Suspensive abnormality, if short/open of
thermistor is detected for 30 secondscontinuously.Turn off compressor and indoor fan.
2 Short/open is detected for 30 secondscontinuously during suspensive abnormality.(The unit returns to normal operation, if it has normally reset.)
3 Detect the following condition.• During cooling and drying operation.• In case that pipe <liquid> temperature
- room temperature <-10deg(Except defrosting)
• When pipe <liquid> temperature orroom temperature is short/open temperature.
• During drain pomp operation.
1 Defective thermistor characteristics
2 Contact failure of connector(CN31) on the indoor controllerboard. (Insert failure).
3 Breaking of wire or contact failure of drain sensor wiring.
4 Defective indoor controller board.
1~3 Check resistance value of thermistor.0: ······6.0k"10: ····3.9k"20: ····2.6k"30: ····1.8k"40: ····1.3k"2 Check contact failure of connector (CN31) on
the indoor controller board. Refer to 9-6. Turnthe power on again and check restart afterinserting connector again.
4 Replace indoor controller board if drain pump operates with the line of drain sensorconnector CN31-1 and 2 is short-circuited,and abnormality reappears.
Turn the power off, and on again to operate after check.
P5
Malfunction of drain pump (DP)1 Suspensive abnormality, if thermistor
of drain sensor is let heat itself and temperature rises slightly. Turn off compressor and indoor fan.
2 Drain pomp is abnormal if the conditionabove is detected during suspensiveabnormality.
3 Constantly detected during drain pompoperation.
1 Malfunction of drain pump2 Defective drain
Clogged drain pumpClogged drain pipe
3 Attached drop of water at thedrain sensor• Drops of drain trickles from
lead wire.• Clogged filter is causing
wave of drain.4 Defective indoor controller board.
1 Check if drain-up machine works.2 Check drain function.3 Check the setting of lead wire of drain sensor
and check clogs of the filter.4 Replace indoor controller board if drain
pump operates with the line of drain sensorconnector CN31-1 and 2 is short-circuitedand abnormality reappears.Refer to 9-6.
Turn the power off, and on again to operate after check.
21
Error Code Meaning of error code and detection method Cause Countermeasure
P6
Freezing/overheating protection isworking1 Freezing protection (Cooling mode)
The unit is in six-minute resume preventionmode if pipe <liquid or condenser/evap-orator> temperature stays under -15: for three minutes, three minutesafter the compressor started. Abnormalif it stays under -15: for three minutesagain within 16 minutes after six-minuteresume prevention mode.<Frost prevention mode>If pipe <liquid or condenser-evaporator> temperature is 2: or below when 16 minutes has passed after compressor starts operating, unit will start operating in frost prevention mode which stops compressor operation. After that, when pipe <liquid or condenser/evaporator> temperature stays 10: or more for 3minutes, frost prevention mode will be released and compressor will restart itsoperation.
2 Overheating protection (Heating mode)The units is in six-minute resume prevention mode if pipe <condenser /evaporator> temperature is detected asover 70: after the compressor started.Abnormal if the temperature of over70: is detected again within 10 minutesafter six-minute resume preventionmode.
P8
1 Slight temperature differencebetween indoor room temperature and pipe <liquid or condenser / evaporator> temperature thermistor• Shortage of refrigerant• Disconnected holder of pipe
<liquid or condenser / evaporator> thermistor
• Defective refrigerant circuit2 Converse connection of
extension pipe (on plural unitsconnection)
3 Converse wiring of indoor/outdoor unit connecting wire(on plural units connection)
4 Defective detection of indoorroom temperature and pipe<condenser / evaporator> temperature thermistor
5 Stop valve is not opened completely.
(Cooling or drying mode)1 Clogged filter (reduced airflow)2 Short cycle of air path3 Low-load (low temperature)
operation beyond the tolerancerange
4 Defective indoor fan motor• Fan motor is defective.• Indoor controller board is
defective.
5 Defective outdoor fan control6 Overcharge of refrigerant7 Defective refrigerant circuit
(clogs)
(Heating mode)1 Clogged filter (reduced airflow)2 Short cycle of air path3 Over-load (high temperature)
operation beyond the tolerancerange
4 Defective indoor fan motor• Fan motor is defective.• Indoor controller board is
defective.
5 Defective outdoor fan control6 Overcharge of refrigerant7 Defective refrigerant circuit
(clogs)8 Bypass circuit of outdoor unit
is defective.
(Cooling or drying mode)1 Check clogs of the filter.2 Remove shields.
4 Measure the resistance of fan motor's winding.Measure the output voltage of fan's connector(Relay for FAN) on the indoor controller board.∗The indoor controller board should be
normal when voltage of AC 220~240V is detected while fan motor is connected.Refer to 9-6.
5 Check outdoor fan motor.67 Check operating condition of refrigerant
circuit.
(Heating mode)1 Check clogs of the filter.2 Remove shields.
4 Measure the resistance of fan motor's winding.Measure the output voltage of fan's connector(Relay for FAN) on the indoor controller board.∗The indoor controller board should be
normal when voltage of AC 220~240V is detected while fan motor is connected.Refer to 9-6.
5 Check outdoor fan motor.6~8Check operating condition of refrigerant
circuit.
Abnormality of pipe temperature<Cooling mode>Detected as abnormal when the pipe tem-perature is not in the cooling range 3 min-utes later of compressor start and 6 min-utes later of the liquid or condenser/evapo-rator pipe is out of cooling range.Note 1) It takes at least 9 min. to detect.Note 2) Abnormality P8 is not detected in
drying mode.Cooling range : -3 deg ] (TH-TH1) TH: Lower temperature between: liquid
pipe temperature (TH2) and con-denser/evaporator temperature (TH5)
TH1: Intake temperature
<Heating mode>When 10 seconds have passed after thecompressor starts operation and the hotadjustment mode has finished, the unit isdetected as abnormal whencondenser/evaporator pipe temperature isnot in heating range within 20 minutes.
Note 3) It takes at least 27 minutes todetect abnormality.
Note 4) It excludes the period of defrosting(Detection restarts when defrost-ing mode is over)
Heating range : 3 deg [ (TH5-TH1)
1~4Check pipe <liquid or condenser /evaporator> temperature with room tem-perature display on remote controller and outdoor controller circuit board.Pipe <liquid or condenser / evaporator> temperature display is indicated by setting SW2 of outdoor controller circuit board as follows.
23Check converse connection of extension pipe or converse wiring of indoor/outdoor unit connecting wire.
Conduct temperature check with outdoorcontroller circuit board after connecting ‘A-Control Service Tool(PAC-SK52ST)’.( )
22
Error Code Meaning of error code and detection method Cause Countermeasure
P9
Abnormality of pipe temperature ther-mistor / Condenser-Evaporator (TH5)1 The unit is in three-minute resume pro-
tection mode if short/open of thermistoris detected. Abnormal if the unit doesnot get back to normal within three min-utes. (The unit returns to normal opera-tion, if it has normally reset.)
2 Constantly detected during cooling, dry-ing, and heating operation (exceptdefrosting)Short: 90: or moreOpen: -40: or less
1 Defective thermistor characteristics
2 Contact failure of connector(CN29) on the indoor controllerboard. (Insert failure)
3 Breaking of wire or contact failure of thermistor wiring.
4 Temperature of thermistor is90: or more or -40: or lesscaused by defective refrigerantcircuit.
5 Defective indoor controllerboard.
1~3 Check resistance value of thermistor.For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN29)on the indoor controller board.Refer to 9-6.Turn the power on and check restart afterinserting connector again.
4 Operate in test run mode and check pipe<condenser / evaporator> temperature withoutdoor controller circuit board. If pipe <condenser / evaporator> temperature isexclusively low (in cooling mode) or high (inheating mode), refrigerant circuit may havedefective.
5 Operate in test run mode and check pipe<condenser / evaporator> temperature withoutdoor control circuit board. If there is exclusive difference with actual pipe <condenser / evaporator> temperaturereplace indoor controller board.There is no abnormality if none of abovecomes within the unit.Turn the power off and on again to operate.
E0orE4
Remote controller transmissionerror(E0)/signal receiving error(E4)1 Abnormal if main or sub remote con-
troller can not receive normally anytransmission from indoor unit of refriger-ant address “0” for three minutes.(Error code : E0)
2 Abnormal if sub remote controller couldnot receive for any signal for two min-utes. (Error code: E0)
1 Abnormal if indoor controller board cannot receive normally any data fromremote controller board or from otherindoor controller board for three minutes.(Error code: E4)
2 Indoor controller board cannot receiveany signal from remote controller for twominutes. (Error code: E4)
1 Check disconnection or looseness of indoorunit or transmission wire of remote controller.
2 Set one of the remote controllers “main”.If there is no problem with the action above.
3 Check wiring of remote controller.• Total wiring length: max.500m
(Do not use cablex 3 or more)• The number of connecting indoor units:
max.16units• The number of connecting remote con-
troller: max.2units
When it is not the above-mentioned problem of1~34 Diagnose remote controllers.
a) When “RC OK” is displayed,Remote controllers have no problem.Put the power off, and on again to check.If abnormality generates again, replaceindoor controller board.
b) When “RC NG” is displayed,Replace remote controller.
c) When “RC E3” is displayed,d) When “ERC 00-06” is displayed,[ c),d)→Noise may be causing abnormality. ]
∗ If the unit is not normal after replacingindoor controller board in group control,indoor controller board of address “0”may be abnormal.
E3orE5
Remote controller transmissionerror(E3)/signal receiving error(E5)1 Abnormal if remote controller could not
find blank of transmission path for sixseconds and could not transmit.(Error code: E3)
2 Remote controller receives transmitteddata at the same time, compares thedata, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3)
1 Abnormal if indoor controller board couldnot find blank of transmission path.(Error code: E5)
2 Indoor controller board receives trans-mitted data at the same time, comparesthe data,and when detecting it, judgesdifferent data to be abnormal 30 continuous times. (Error code: E5)
1 Set a remote controller to main, and theother to sub.
2 Remote controller is connected with only oneindoor unit.
3 The address changes to a separate setting.
4~6 Diagnose remote controller.a) When “RC OK”is displayed, remote con-
trollers have no problem.Put the power off,and on again to check.When becoming abnormal again, replaceindoor controller board.
b)When “RC NG”is displayed, replaceremote controller.
c)When “RC E3”or “ERC 00-66”is displayed,noise may be causing abnormality.
1 Contact failure at transmissionwire of remote controller
2 All remote controllers are setas “sub” remote controller. Inthis case, E0 is displayed onremote controller, and E4 isdisplayed at LED (LED1, LED2)on the outdoor controller circuitboard.
3 Mis-wiring of remote controller.4 Defective transmitting receiving
circuit of remote controller5 Defective transmitting receiving
circuit of indoor controller boardof refrigerant address “0”.
6 Noise has entered into thetransmission wire of remotecontroller.
1 Two remote controller are setas “main.”(In case of 2 remote con-trollers)
2 Remote controller is connectedwith two indoor units or more.
3 Repetition of refrigerantaddress.
4 Defective transmitting receivingcircuit of remote controller.
5 Defective transmitting receivingcircuit of indoor controllerboard.
6 Noise has entered into trans-mission wire of remote con-troller.
In case of checking pipe temperaturewith outdoor controller circuit board,be sure to connect A-control servicetool (PAC-SK52ST).( )
23
PA(2502)(2500)
Forced compressor stop (due to water leakage abnormality)1 When the intake temperature subtracted
with liquid pipe temperature is less than-10:, drain sensor is detected whether it is soaked in the water or not at the interval of 90 seconds. (Drain pump will start operatingwhen the drain sensor is detected to be soaked in the water.)
2 The unit has a water leakage abnormality when the following conditions, a and b, aresatisfied while the above-mentioned detectionis performed.a) The drain sensor is detected to be
soaked in the water 10 times in a row.b) The intake temperature subtracted with
liquid pipe temperature is detected to beless than -10: for a total of 30 minutes.(When the drain sensor is detected to be NOT soaked in the water, the detectionrecord of a and b will be cleared.)
3 The drain sensor detection is performed in operations other than cooling. (When the unit stops operating, during heating or fan operation, when the unit stops because of some abnormality)
*Once the water leakage abnormality is detected, abnormality state will not be released until the main power is reset.
1) Drain pump trouble
2) Drain defective· Drain pump clogging· Drain pipe clogging
3) Open circuit of drain sensor side heater
4) Contact failure of drain sensor connector
5) Dew condensation on drain sensor
· Drain water descends along lead wire.
· Drain water waving due to filterclogging.
6) Extension piping connection difference at twin, triple,quadruple system.
7) Mis-wiring of indoor/ outdoorconnecting at twin, triple,quadruple system.
8) Room temperature thermistor /liquid pipe temperature thermis-tor detection is defective.
Check the drain pump.PerformancePlease confirm whether water can be drained.
Confirm the resistance of the drain sensor sideheater.
Check the connector contact failure.
1 Check the drain sensor leadwire mounted.2 Check the filter clogging
Check the piping connection.
Check the indoor/ outdoor connecting wires.
Check the room temperature display of remotecontroller.Check the indoor liquid pipe temperature dis-play of outdoor controller board.
E6
1 Contact failure, short circuit or,mis-wiring (converse wiring) ofindoor/outdoor unit connectingwire
2 Defective transmitting receivingcircuit of indoor controller board
3 Defective transmitting receivingcircuit of indoor controller board
4 Noise has entered into indoor/outdoor unit connecting wire.
∗ Check LED display on the outdoor control cir-cuit board. (Connect A-control service tool,PAC-SK52ST.)Refer to EA-EC item if LED displays EA-EC.
1 Check disconnection or looseness of indoor/outdoor unit connecting wire of indoor unit oroutdoor unit.Check all the units in case of twin triple indoor unit system.
2~4 Turn the power off, and on again tocheck. If abnormality generates again,replace indoor controller board or outdoor controller circuit board.
∗ Other indoor controller board may have defective in case of twin triple indoor unit system.
E7
Indoor/outdoor unit communicationerror (Transmitting error)Abnormal if “1” receiving is detected 30times continuously though indoor controllerboard has transmitted “0”.
1 Defective transmitting receivingcircuit of indoor controller board
2 Noise has entered into powersupply.
3 Noise has entered into outdoorcontrol wire.
1~3 Turn the power off, and on again tocheck. If abnormality generates again,replace indoor controller board.
Indoor/outdoor unit communicationerror (Signal receiving error)1 Abnormal if indoor controller board
cannot receive any signal normally forsix minutes after putting the power on.
2 Abnormal if indoor controller board cannot receive any signal normally forthree minutes.
3 Consider the unit abnormal under thefollowing condition: When two or moreindoor units are connected to one outdoor unit, indoor controller board cannot receive a signal for three minutesfrom outdoor controller circuit board, asignal which allows outdoor controllercircuit board to transmit signals.
Error Code Meaning of error code and detection method Cause Countermeasure
Fb
Abnormality of indoor controller boardAbnormal if data cannot be normally readfrom the nonvolatile memory of the indoorcontroller board.
1 Defective indoor controllerboard.
1 Replace indoor controller board.
E1orE2
Abnormality of remote controller controlboard1 Abnormal if data cannot be normally
read from the nonvolatile memory of theremote controller control board.(Error code: E1)
2 Abnormal if the clock function of remotecontroller cannot be normally operated.(Error code: E2)
1 Defective remote controller. 1 Replace remote controller.
24
(For the separate indoor/outdoor unit power sup-ply system)
1 Power supply of 220~240V AC is not supplied toindoor unit.
2 The connectors of the optional replacement kit arenot used.
3 Defective indoor controller board.
4 Defective indoor power board.
9-3. TROUBLESHOOTING BY INFERIOR PHENOMENA Note: Refer to the manual of outdoor unit for the detail of remote
controller.
Phenomena Cause Countermeasure(1)LED2 on indoor controller board
is off.• When LED1 on indoor controller board is also off.1 Power supply of rated voltage is not supplied to out-
door unit.
2 Defective outdoor controller circuit board.
3 Power supply of 220~240V is not supplied to indoorunit.
4 Defective indoor power board.
5 Defective indoor controller board.
1 Check the voltage of outdoor power supply terminal block (L, N) or (L3, N).• When AC 220~240V is not detected.
Check the power wiring to outdoor unit and the breaker.
• When AC 220~240V is detected.—Check 2 (below).
2 Check the voltage between outdoor terminal block S1 and S2.• When AC 220~240V is not detected.
Check the fuse on outdoor controllercircuit board.Check the wiring connection.
• When AC 220~240V is detected.—Check 3 (below).
3 Check the voltage between indoor terminalblock S1 and S2.• When AC 220~240V is not detected.
Check indoor/outdoor unit connecting wire for mis-wiring.
• When AC 220~240V is detected.—Check 4 (below).
4 Check voltage output from CN2S on indoorpower board (DC13.1V). Refer to 9-6-1.• When no voltage is output.
Check the wiring connection.• When output voltage is between
DC12.5V and DC13.7V.—Check 5 (below).
5 Check the wiring connection betweenindoor controller board and indoor powerboard. Check the fuse on indoor controllerboard. If no problems are found, indoorcontroller board is defective.
• When LED1 on indoor controller board is lit.1 Mis-setting of refrigerant address for outdoor unit
(There is no unit corresponding to refrigerant address “0”.)
1 Reconfirm the setting of refrigerantaddress for outdoor unitSet the refrigerant address to “0”.(For grouping control system under which 2 or more outdoor units are connected, set one of the units to “0”.)Set refrigerant address using SW1 (3-6) on outdoor controller circuit board.
1 Check the voltage of indoor power supplyterminal block (S1,S2).• When AC220~240V is not detected.
Check the power supply wiring.• When AC220~240V is detected.
-Check 2 (below).2 Check that there is no problem in the
method of connecting the connectors.• When there are problems in the method
of connecting the connectors.Connect the connector correctly refer-ring to installation manual of an optionalkit.
• When there is no problem in themethod of connecting the connectors.-Check 3 (below).
3 Check voltage output from CNDK onindoor controller board.• When AC220~240V is not detected.
Check the fuse on indoor controllerboard.Check the wiring connection betweenindoor power supply terminal block andCND on indoor controller board.
• When AC220~240V is detected.-Check 4 (below).
4 Check voltage output from CN2S onindoor power board.• When no voltage output.
Check the wiring connection betweenCNDK on indoor controller board andCNSK on indoor power board.If no problem are found,indoor powerboard is defective.
• When DC12.5~13.7V is detected.Check the wiring connection betweenCN2S on indoor power board andCN2D on indoor power board.If no problem are found,indoor controllerboard is defective.
25
Note: Refer to the manual of outdoor unit for the detail of remote controller.
Phenomena Cause Countermeasure
(2)LED2 on indoor controller board is blinking.
• When LED1 on indoor controller board is also blinking.Connection failure of indoor/outdoor unit connecting wire
• When LED1 is lit.1 Mis-wiring of remote controller wires
Under twin triple indoor unit system, 2 or more indoor units are wired together.
2 Refrigerant address for outdoor unit is wrong or notset.Under grouping control system, there are some units whose refrigerant address is 0.
3 Short-cut of remote controller wires4 Defective remote controller
Check indoor/outdoor unit connecting wirefor connection failure.
1 Check the connection of remote con-troller wires in case of twin triple indoor unit system. When 2 or more indoor unitsare wired in one refrigerant system,
connect remote controller wires to one ofthose units.
2 Check the setting of refrigerant addressin case of grouping control system.If there are some units whose refrigerant addresses are 0 in one group, set one of the units to 0 using SW1 (3-6) on outdoor controller circuit board.
34 Remove remote controller wires and check LED2 on indoor controller board.
• When LED2 is blinking, check theshort-cut of remote controller wires.
• When LED2 is lit, connect remote controller wires again and:if LED2 is blinking, remote controller is defective; if LED2 is lit, connection failure of remote controller terminal block etc. has returned to normal.
9-4. WHEN WIRED REMOTE CONTROLLER OR INDOOR UNIT MICRO COMPUTER TROUBLES1. If there is not any other wrong when trouble occurs, emergency operation starts as the indoor controller board switch (SWE)
is set to ON.During the emergency operation the indoor unit is as follows;(1) Indoor fan high speed operation (2) Drain-up machine operation
2. When emergency operating for COOL or HEAT, setting of the switch (SWE) on the indoor controller board and outdoor unitemergency operation are necessary.
3. Check items and notices as the emergency operation(1) Emergency operation cannot be used as follows;
• When the outdoor unit is something wrong.• When the indoor fan is something wrong.• When drain over flow protected operation is detected during self-diagnosis. (Error code : P5)
(2) Emergency operation will be serial operation by the power supply ON/OFF.ON/OFF or temperature, etc. adjustment is not operated by the remote controller.
(3) Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat emer-gency operation.
(4) Cool emergency operation must be within 10 hours. Other wise, heat exchanger of indoor unit may get frosted.(5) After completing the emergency operation, return the switch setting, etc. in former state.(6) Since vane does not work at emergency operation, position the vane slowly by hand.
26
9-5. HOW TO CHECK THE PARTSPEA-RP200GA PEA-RP250GAPEA-RP400GA PEA-RP500GA
Parts name Check points
Disconnect the connector then measure the resistance using a tester.(Surrounding temperature 10:~30:)
(Refer to the thermistor)
Room temperaturethermistor (TH1)
Pipe temperaturethermistor/liquid (TH2)
Condenser/evaporatortemperature thermistor (TH5)
Normal
4.3k"~9.6k"
Abnormal
Open or short
Thermal protector trip temperature135 ±5˚C : open86 ±15˚C : close
•PEA-RP200/250GA
Thermal protector trip temperature150 ±5˚C : open96 ±15˚C : close
•PEA-RP400/500GA
THERMO
W
Z Y
a bU
X
V
THERMO
Normal
20.6Ω
25.6Ω PEA-RP200/250GA
Red-White / White-Blue / Red-Blue
Red-White / White-Blue / Red-Blue
Red-White / White-Blue / Red-Blue
Red-White / White-Blue / Red-Blue
Abnormal
Open or short
Hi
Lo
34.2Ω PEA-RP400GA
25.2Ω PEA-RP500GA
Measure the resistance value across the terminals with a multimeter. (Winding
temperature 20 ˚C)
(LO)
(LO)
(HI)
(HI)
U2
U1
V1
V1
W1
W2
(LO)
(HI)Black marking
Black marking
Black marking
Yellow
Blue
Red
Red
Blue
Yellow
White
White
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Res
ista
nce
(K"
)
<Thermistor Characteristic graph>
•Room temperature thermistor(TH1)•Pipe temperature thermistor/liquid(TH2)•Condenser/Evaporator temperature thermistor(TH5)
Thermistor R0=15k' ± 3%Fixed number of B=3480 ± 2%
Rt=15exp 3480( )
0: 15k'10: 9.6k'20: 6.3k'25: 5.2k'30: 4.3k'40: 3.0k'
Thermistor for lower temperature
1273+t
1273
27
9-6. TEST POINT DIAGRAM9-6-1. Power boardPEA-RP200GA PEA-RP250GAPEA-RP400GA PEA-RP500GA
CNSKConnect to the indoor controller board(CNDK)Between 11 to 33 220-240V AC
CN2SConnect to the indoor controller board (CN2D)Between 11 to 33 12.6-13.7V DC (Pin11 (+))
28
9-6-2. Indoor controller boardPEA-RP200GA PEA-RP250GAPEA-RP400GA PEA-RP500GA
FANFan motor output
CNPDrain-pump output(DP)(220~240V AC)
CNCDew preventionheater (H2)(220~240V AC)
CNDKConnect to the indoorpower board (CNSK)(220~240V AC)
FUSE(6.3A 250V)
CNDPower supply input(220~240V AC)
SWEEmergency operation
SW2Capacity setting
SW1Model setting
CN2LConnector (LOSSNAY)
CN51Centrally control
CN6VVane motor output(MV)
CN90Connect to thewireless remotecontroller board(CNB)
CN31Drain sensor (DS)
CN29Condenser/evaporatortemperature thermistor(TH5)
CN21Pipe temperaturethermistor/Liquid(TH2)
CN20Room temperaturethermistor (TH1)
CN22Remote controllerconnecting wire(10.4~14.6V DC)
LED3Transmission(Indoor/outdoor)
LED2Power supply (R.B)
LED1Power supply (I.B)
CN2DConnector to the indoorpower board (CN2S)(12.5~13.7V DC)
CN3CTransmission(Indoor/outdoor)(0~24V DC)
Non polarity
+ –
+
–
CN41Connector (HA terminal-A)
29
SW1
Setting by the dip switch and jumper wireFunctionsJumper wire
Modelsettings
Capacitysettings
Remarks
SW2
Unit type setting
JP1
Indoor controller board type setting
JP3
There is no jumper (JP1) because these models have the cond./eva. temperature thermistor (TH5).
(Marks in the table below) Jumper wire ( : Short : Open)
Without TH5With TH5
Model JP1
Factory shipmentService parts
Indoor controller board type JP3
PEA-RP200/250 PEA-RP400/500
1
OFFON
5432
1
OFFON
5432
1
OFFON
5432
9-7. FUNCTIONS OF DIP SWITCH AND JUMPER WIREEach function is controlled by the dip switch and the jumper wire on control p.c. board.
30
10 SERVICE DATA (PARTS NAME)
Control box
Drain pan
Drain pipe connection(R1)
Fan motor
Sirocco fan
Suspension bracket Special washer
Liquid pipe thermistor(TH2)
2-phasepipethermistor(TH5)
Strainer
StrainerHeat exchanger
Liquid pipe
Gas pipe
Inlet thermistor(TH1)
Drain pan
PEA-RP200/250GA
31
Drain pan
Drain pipe connection(R1)
Fan motor
Sirocco fan
Suspension bracketControl box
Special washer
Drain pan
Liquid pipe thermistor(TH2-1)
Liquid pipe thermistor(TH2-2)
Strainer
No.2 Strainer
StrainerNo.1 Strainer
2-phase pipethermistor(TH5-1)
Heat exchanger
No.1 Liquid pipe
No.1 Gas pipe
No.2 Liquid pipe
2-phase pipethermistor(TH5-2)
No.2 Gas pipe
No.2Inlet thermistor(TH1-2)
No.1Inlet thermistor(TH1-1)
PEA-RP400/500GA
32
A
Ferrite corePower supply board
Control board
I/D
POWER BOARD
I/D
CONTROLLER BOARD
Lo52F
Hi52F
51FX1
FB
view A
L2N
L3L1
TB2
TB4TB5
12
S2
S1
S3
Relay
SNBboard
Magnetic contactor(Fan motor Lo speed)
Magnetic contactor(Fan motor Hi speed)
Terminal block forremote controller
Terminal block foroutdoor/indoor controlwiring connection
Power supplyterminal block
PEA-RP200/250GA
33
(NO.2)
I/DPOWER BOARD
(NO.1)
I/DPOWER BOARD
A
view A
I/D
CONTROLLER BOARD
(NO.2)
CONTROLLER BOARD
(NO.1)
I/D
FB12 FB22
FB11 FB21
52F
TB2TB4-1 TB5TB4-2X1 X2
51F
Ferrite core Ferrite coreControl board(No.2 unit)
Control board(No.1 unit)
Relay
Power supplyterminal block
Terminal block foroutdoor/indoor controlwiring connection(No.1 unit)
Terminal block foroutdoor/indoor controlwiring connection(No.2 unit)
Terminal block forremote controller
Magneticcontactor
Control board(No.1 unit)
Control board(No.2 unit)
SNB board
PEA-RP400/500GA
New publication, effective Nov 2007.Specifications subject to change without notice.HWE0708B
Printed in Japan