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9-9. TEST POINT DIAGRAM
Outdoor multi controller board
PUMY-P100VHM
PUMY-P100VHMA
PUMY-P100VHMA-BS
SW2
Pump down
SW8
Demand/ Silent selection
SW1
Display selection
(Self diagnosis)
SWU2, SWU1
Address setting
CNLVB(Only VHMA)
Connect to the outdoor
noise filter circuit board
(CN52C)
1–6 : DC12V
63L
Low pressure switch
CN3N
Auto change over
(external signal input)
63H
High pressure switch
CN3D
Input of demand control
TH4 Thermistor
<Discharge>
TH3 Thermistor
<Outdoor pipe>
TH7/ 6 Thermistor
<Outdoor/ Saturation tem-
perature of suction pressure>
63HS
High pressure sensor
V
FG
(Voltage between left pins of
PC511 and PC512, pin1 and
pin2) :
(Same as CNF1,2 7(+)–4(-))
V
SP
(Voltage between pins of
C515 and C516) :
DC0V (when stopped)
DC1–6.5V (when operated)
(Same as CNF1,2 6(+)–4(-))
PUMY-P125VHM
PUMY-P125VHMA
PUMY-P125VHMA-BS
SW3
SW7
Test run
Forced defrost
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)
61
PUMY-P140VHM
PUMY-P140VHMA
PUMY-P140VHMA-BS
CN51
SW4
External signal
Model select
output
V
(TEST POINT1)
DC
(Voltage between pins of
C510) : DC280V-350V
(Same as CNF1,2 1(+)–4(-))
CN102
Connect to the M-P.B
(Transmission power board)
CN40,CN41
Centralized control power
supply/ For storing
jumper connector selection
CN52
Transmission wire of
centralized control
CNS1
Indoor/ outdoor unit
connecting wire
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
CNAC
Power supply for multi
controller board
F1, F2
FUSE 6.3A
SV1
Bypass valve
21S4
4-way valve
V
(TEST POINT2)
CC
(Voltage between pins of
C82A) : DC15V
(Same as CNF1,2 5(+)–4(-))
52C
52C relay signal
CNDC
DC280V-350V
(1(+)–3(-))
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