61
9-9. TEST POINT DIAGRAM
Outdoor multi controller board
PUMY-P100VHM PUMY-P125VHM PUMY-P140VHM
PUMY-P100VHMA PUMY-P125VHMA PUMY-P140VHMA
PUMY-P100VHMA-BS PUMY-P125VHMA-BS PUMY-P140VHMA-BS
SW2
Pump down
21S4
4-way valve
SV1
Bypass valve
CNAC
Power supply for multi
controller board
CNS1
Indoor/ outdoor unit
connecting wire
CN52
Transmission wire of
centralized control
CN40,CN41
Centralized control power
supply/ For storing
jumper connector selection
CN102
Connect to the M-P.B
(Transmission power board)
CN51
External signal
output
SW4
Model select
SW7
Forced defrost
SW3
Test run
CN2
Connect to the outdoor
power circuit board
1
-
5
:
Power circuit board
→
Transmitting signal to
the multi controller board
(0-5V DC)
2
-
5
: Zero cross signal
(0-5V DC)
3
-
4
: Not used
6
-
5
: 16V DC
7
-
5
: 16V DC
CNDC
DC280V-350V
(
1
(+)–
3
(-))
V
CC
(TEST POINT
2
)
(Voltage between pins of
C82A) : DC15V
(Same as CNF1,2
5
(+)–
4
(-))
V
SP
(Voltage between pins of
C515 and C516) :
DC0V (when stopped)
DC1–6.5V (when operated)
(Same as CNF1,2
6
(+)–
4
(-))
CNF1, 2
Connect to fan motors
1
–
4
: DC280V-350V
5
–
4
: DC15V
6
–
4
: DC0–6.5V
7
–
4
: DC15V (when stopped)
DC0–15V pulse
(when operated)
V
DC
(TEST POINT
1
)
(Voltage between pins of
C510) : DC280V-350V
(Same as CNF1,2
1
(+)–
4
(-))
V
FG
(Voltage between left pins of
PC511 and PC512, pin1 and
pin2) :
(Same as CNF1,2
7
(+)–
4
(-))
TH4 Thermistor
<Discharge>
TH7/ 6 Thermistor
<Outdoor/ Saturation tem-
perature of suction pressure>
63HS
High pressure sensor
63H
High pressure switch
TH3 Thermistor
<Outdoor pipe>
CN3D
Input of demand control
63L
Low pressure switch
SW1
Display selection
(Self diagnosis)
SWU2, SWU1
Address setting
SW8
Demand/ Silent selection
52C
52C relay signal
F1, F2
FUSE 6.3A
CN3N
Auto change over
(external signal input)
CNLVB(Only VHMA)
Connect to the outdoor
noise filter circuit board
(CN52C)
1
–
6
: DC12V
