MEES20K028
PWFY-P-
N
MU-
E
-BU, P-
NMU-E2-
A
U
10
5. ELECTRICAL WIRING DIAGRAMS
AIR TO WATER
TH8
TH6
TH23
t°
blue
CN2M
2
1
2
1
CN402 green
2
1
CN403
red
1
2
CN404 black
yellow
CN405
TH22
1
2
S(SHIELD)
2
M2
1
M1
T
o
MA
remote
controller
T
o
outdoor unit/
BC controller
Power Supply ~208/230V 60Hz
L2
L1
Unit address setting(SWU1,SWU2)
Connection No.(SWU3)
LED1
TB15
TB5
ZNR1
U
DSA1
CN1
1
3
SWU2
SWU1
SWP3
SWP2
SWP1
OFF
ON
11
0
SW4
OFF
ON
11
0
SW3
OFF
ON
11
0
SW1
OFF
ON
11
0
SW2
LED4:Remote controller
when powered
5
1
2
3
4
X502
CN507
3
1
M
5
6
ON
OFF
1
SW5
SWU3
LED3:Lit when powered
Control Board
CNL
V
B
LEV1W
a
TB2
SV1
DSA
Board
CN3T
red
1
3
T01
ZNR01
3
1
CN502 black
1
2
CNAC
red
U
F01 AC250V 6.3A
T
LED1 Display setting(SW2)
Function setting(SW1,SW3,SW4,SW5)
OUT4
OUT3
OUT2
X514
X513
X512
TB141A
X51
1
3
3
3
3
3
2
2
2
2
1
1
1
1
1
CN3A
CN421
CN421
4-20mA
4-20mA
CN422
CN422
blue
black
black
blue
blue
TB142C
COM+
IN6
IN8
COM+
IN5
IN7
TB142B
X516
X517
X515
OUT6
OUT7
OUT5
TB141B
red
red
green
blue
yellow/green
TB142A
IN2
IN3
IN1
IN4
*4
*5
*6
*7
orange
yellow
black
purple
F02
AC250V
3.15A
T
F03
AC250V
3.15A
T
CNSV2
1
2
1
3
t°
t°
t°
OUT1
blue
black
red
white
red
red
SVG
SVL
CNSV1
1
2
3
4
M
5
6
CNL
V
C
LEV1Wb
TB2
LEV1W
a
SV1
TB5
LEV1Wb
TB15
OUT1
IN1
IN3
P36
COM+
IN4
P72
IN5
IN6
IN7
IN8
OUT2
TH22
TH23
TH6
OUT4
TH8
Explanation
Function
Function
Function
Function
Appliance
Te
rm
in
a
l
block
Linear
expansion valve
Solenoid valve
Power supply
BC controller/outdoor unit
For opening/closing the bypass circuit
Outdoor unit/BC controller
BC controller/outdoor unit
*3
MA
remote controller
Operation ON/OFF(V
o
ltage contact)
Flow switch
Connection demand
*3 do not exist
Common
Operation ON/OFF
*3 exist
Heating
Heating ECO
Anti-freeze
Cooling
Defrost
liquid pipe temp
gas pipe temp
water inlet temp
Error signal
water outlet temp
Symbol
Symbol
Symbol
Symbol
Model name
Symbol
Thermistor
<Symbol explanation>
<CAUTION FOR INST
ALLA
TION>
· Prior to installation,read the Installation Manual carefully
.
*1.Single-dotted lines indicate wiring not supplied with the unit.
*2.Dot-dash lines indicate the control box boundaries.
*3.Dif
ference of appliance
*4 TB141A(output)
*5 TB142A(input)
*6 TB142B(input)
*7 TB142C(input)
*8.Use copper supply wires.
G
*3
*8
SVG
For opening/closing the gas refrigerant circuit
SVL
For opening/closing the liquid refrigerant circuit
PWFY-P36, P72NMU-E2-AU
0000005923.BOOK 10 ページ 2020年8月6日 木曜日 午後12時38分