Mitsubishi PUMY-P60NKMU - Outdoor Controller Board; Test Point Diagram

89
8-9. TEST POINT DIAGRAM
Outdoor controller board
PUMY-P60NKMU
PUMY-P60NKMU-BS
SW2
Pump down
21S4
Four-way valve
SV1
Bypass valve
CNAC
Power supply for multi
controller board
208/230VAC
CNS1
Indoor/ outdoor unit
connecting wire
CNS2
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
DC280-380V (1(+)–3(-))
VCC (TEST POINT2)
(Voltage between pins of
C82A) : DC15V
(Same as CNF1,2 5(+)–4(-))
VSP
(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 : DC310V
5–4 : DC15V
6–4 : DC0–6.5V
7–4 : DC15V (when stopped)
DC0–15V pulse
(when operated)
VDC (TEST POINT1)
(Voltage between pins of C510)
: DC310V
(Same as CNF1,2 1(+)–4(-))
VFG (TEST POINT4)
(Voltage between left pins of
PC511 and PC512, pin1 and
pin2) :
(Same as CNF1,2 7(+)–4(-))
TH4 Thermistor
<Compressor>
TH7/TH6 Thermistor
<Outdoor/Saturation tempera-
ture of suction pressure>
63HS
High pressure sensor
63H
High pressure switch
TH3 Thermistor
<Outdoor pipe>
CN3D
Input of demand control
63LS
Low pressure sensor
SW1
Display selection
(Self diagnosis)
SWU2, SWU1
Address setting
SW8
Model select
<CAUTION> TEST POINT is high voltage.
TH2 Thermistor
<HIC pipe>
SW5
Function switch
SW6
Function switch
CN3N
Auto change over
OCH502C