Mitsubishi Electric PQHY-P250YHM-A, Data Book

Page: 25 / 78

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PQHY-P250YHM-A
~
CNA
C4
3
1
CN83
CNOUT2
4
3
2
16
5
CNPW
4
2
1
7
5
3
tT
H
3
1 2
CN212
t
TH6
1 2
t
THINV
CNTYP1 bl
ac
k
LEVINV
CNL
VE
1 2 3 4 5 6
LEV2b
CNL
VC
red
1 2 3 4 5 6
CN510 ye
llow
CN509 bl
ue
3
CNOUT1 ye
llow
blue
yello w
red
orange
4 1
1 2 3 4 5 6
6 5 4 3 2 1
CNL
VB
red
LEV2a
t
TH8
1 2
CN992 ye
llo
w
12
4
b
lue
CN63PW
MF1
SV4d
1 5 6
X12
1 5 6
SV4b SV7b
SV7a
3
DCL
t
M1
M2
SV1a
Z3
2
1
-
+
C5
SC-L1
SC-L2
SC-W
1
Z5
R1 R2 R3
C3 C2
F3 F2 F1
Z1
Z2
R5
D1
R4
R6
C17
Diode Br
idge
C7 C8 C9
C10
C4
C1
C6
TB1
L
F4 A
C250V
6.3A T
bl
ac
k
white red
3 1 CN3 gr
een
TB24
TB23
TB22
TB21
CN1B
41
31
CN1A
UUU
F1,F2,F3 A
C250V
6.3A T
U
Z4
DSA
CN2
6 5 3 1
U
ZNR01
U
+
3
1
CN5 red
3
CN4 bl
ue
1
C100
R1
R5
bl
ac
k
red
2 4
3 1
72C
blac
k
red
SC-P1
SC-P2
4
CN1
1
CN6
21
CN4
1 2
CN2
1 5 7 1
CNTYP bl
ac
k
C1
RSH1
t THHS
FT
-P
FT
-N
+ + + +
+ + + +
R34 C30 C32 C34 C36 R30 R32
C31 C33 C35 C37 R31 R33
blac
k
white
red
R35
CT3
SC-L3
IGBT
SC-U
SC-V
CT12
CT22
red
white
bl
ac
k
bl
ac
k
white
red
U
V
W
TP2
TP1
TB7
S
M2
M1
TB3
13
CN04 red
CN102
4321
CNS2 ye
llow
21
5432
CNIT red
1
63H1
P
LEV1
1 2 3 4 5 6
CNL
VA
3 1
CNTYP2 bl
ac
k
Z24
3 2 1
Z25
CNTYP5 green CNTYP4 green
4 2 1
CN213 red CN990
2 1
TH7 TH5
t
t
2 1 3
63LS 63HS1
2 1 3
TH2
t
TH4
3 2 1
CN202 red CN201
2 3 1
CN215 bl
ac
k
2 1
CN21
1
2 1
red CNIT
ye
llow
CNS2
5
1234
14 14
CN41 CN40
CN102
4
3
2
1
CN3D
1
2
3
bl
ue
CN3N
1
2
3
ye
llo
w
CN3K
1
2
CNA
C
red
21
3
F01 A
C250V
3.15A T
6 3 1
SV9
X09
CN508 blac
k
SV4a
X08 X07
1 3 5 6
CN507 red
6 5 3 1
CN506
X13 X05
3 1
21S4a
CN504 green
X04 X03
CH1
1
3 1
CN503 bl
ue
2 1
CN502
X02
1 2
CNA
C2
blac
k
6 5
72C
1 2
CN72 red
3
1
CNDC pink
12
CNT01
13
1
2
2
1
CN801 ye
llo
w
CNT02
CN4
CN2
7 5 1
SW1
ON
OFF
1
10
SW2
ON
OFF
1
10
SW3
ON
OFF
1
10
SW4
ON
OFF
1
10
ON
OFF
1
10
SW5
5 4 3
12V
1
CN51
SWU2
SWU1
10's digit
1's digit
*1.
Single-dotted lines indicate wir
ing
not supplied with the unit.
*2.
Dot-dash lines indicate the control
bo
x
boundar
ies
.
*3.
Ref
er to the Data book f
or connecting
input/output signal connectors
.
*4.
Daisy-chain ter
minals (TB3) on the
heat source units in the same refr
iger
ant system together
.
*5.
F
aston ter
minals ha
v
e
a loc
king
function.
Mak
e sure the ter
minals
are securely lock
ed in place after
inser
tion.
Press the tab on the
ter
minals to remo
v
ed them.
*6.
Control bo
x houses high-v
oltage par
ts
.
Bef
ore inspecting the inside of the
control bo
x, tur
n of
f the p
o
w
e
r,
k
eep
the unit of
f
for at least 10 min
utes
,
and confir
m that the v
oltage betw
een
FT
-P
and F
T
-N on INV Board has dropped
to 20VDC or less
.
*7.
Ref
er to the Data book f
or wir
ing
ter
minal b
loc
k f
or Pump Inter
loc
k (TB8).
<Symbol e
xplanation>
Subcooled liquid refr
iger
ant
temper
ature
TH6
Pipe temper
ature
TH3
Subcool b
ypass outlet temper
ature
TH2
Pressure control, Refr
iger
ant flo
w
rate control
LEV2a, b
Outlet temp
. detect of heat
e
xchanger f
or in
v
e
rter
THINV
W
ater outlet temper
ature
TH8
Heat e
xchanger capacity control
SV7a, b
Heat e
xchanger capacity control
SV4a, b
, d
Heat e
xchanger f
or in
v
e
rter
LEVINV
F
or opening/closing the b
ypass
circuit under the O/S HIC b
ypass
, Controls refr
iger
ant
flo
w in HIC circuit
F
an motor (Radiator panel)
MF1 SV1a
F
or opening/closing the b
ypass
circuit
Z24, 25
Ther
mistor
Oper
ation ON signal, Pump
Inter
loc
k
Discharge pipe temper
ature
A
CC inlet pipe temper
ature
W
ater inlet temper
ature
IGBT
tempe
rature
Function setting connector
THHS TH7 TH5 TH4 TB8
P
o
w
er supply
Explanation
Indoor/Heat source tr
ansmission
cab
le
Centr
al control tr
ansmission
cab
le
T
e
rminal
bl
o
c
k
TB7 TB3 TB1
Symbol
DC reactor
DCL LEV1
Linear e
xpansion
va
lv
e
Solenoid va
lv
e
CT12, 22, 3 CH1
1
C
rankcase heater (f
or heating the compressor)
Current sensor (A
C)
Magnetic rela
y (in
v
e
rter main circuit)
72C
Lo
w pressure
High pressure High pressure protection f
or the
heat source unit
Pressure s
witch
Pressure sensor
63LS 63H1
Symbol
Explanation
4-w
a
y
v
alv
e
21S4a SV9 63HS1
RELA
Y
Board
Noise Filter
INV Board
M-NET
Board
Control Board
P
o
w
e
r Source
3N~ 50/60Hz 380/400/415V
N
L3
L2
L1
N
L3
L2
L1
P N
Pump Inter
loc
k
Oper
ation
ON signal
Motor (Compressor)
MS
3~
1
TB8
234
*7
*5
*6
*4
OFF ON
*3
LED1
*3
Unit address setting
LED1 Displa
y
setting
Function setting
Compressor ON/OFF output Error detection output
TB7 P
ow
er
selecting
LED3:Lit when po
w
ered
LED2:CPU in oper
ation
LED1 :
Nor
mal oper
ation (lit)
/
Error
(b
link)
CPU po
w
e
r
supply circuit
P
o
w
er f
ailure
detection circuit
M-NET
p
o
w
e
r
supply circuit
Centr
al control
tr
ansmission
cab
le
Indoor/ Heat source tr
ansmission
cab
le
LED1:P
o
w
er supply to
Indoor/Heat source tr
ansmission line
M M M M
° ° ° ° ° ° ° °
connector
M
°
N
L3
L2
L1