Mitsubishi Electric CITY MULTI PUMY-P200YKM3, Руководство по обслуживанию

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OCH791 _86
8-9. Test point diagram
■ Outdoor multi controller circuit board
Caution:
• TEST POINT 1 is high voltage.
SS
Base heater
SW2
Pump down
SW6
SW5
SW9
21S4
4-way valve
SV1
Bypass valve
CNAC
Power supply for outdoor
multi controller circuit board
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-NET P.B
(M-NET power circuit board)
CN51
External signal
output
SW4
Model selection
SW7
Manual defrost
SW3
Test run
CN2
Connect to the outdoor
power circuit board (CN2)
1
–
5
: Power circuit board →
Transmitting signal to the out-
door multi controller circuit board
(0–5V DC)
2
–
5
: Zero cross signal
(0–5 V DC)
3
–
4
: Not used
6
–
5
: 15 V DC
7
–
5
: 15 V DC
CNDC
310–340 V DC
(
1
(+)–
3
(−))
V
CC
(TEST POINT
2
)
(Voltage between pins of
C82A): 15 V DC
(Same as CNF1,2
5
(+)–
4
( − ))
V
SP
(Voltage between pins of
C515 and C516) :
0 V DC (when stopped)
1–6.5 V DC (when operated)
(Same as CNF1,2
6
(+)–
4
( − ))
CNF1, 2
Connect to fan motors
1
–
4
: 310–340 V DC
5
–
4
: 15 V DC
6
–
4
: 0–6.5 V DC
7
–
4
: 15 V DC (when stopped)
0–15 V DC pulse
(when operated)
V
DC
(TEST POINT
1
)
(Voltage between pins of C510)
: 310–340 V DC
(Same as CNF1,2
1
(+)–
4
( − ))
V
FG
(TEST POINT
4
)
(Voltage between pin3 and
pin4 of PC511 or PC512):
(Correspond to CNF1,2
7
(+)–
4
( − ))
TH4 Thermistor
<Compressor>
TH7/TH6 Thermistor
<Ambient/Suction pipe>
63HS
63H
TH3 Thermistor
CN3D
Input of silent mode or
demand control
CNLVA
Linear expansion
SW1
Display selection
SWU2, SWU1
SW8
CN3N
Auto change over
63LS
CNLVB
Linear expansion
TH2 Thermistor
<HIC pipe>
CN4
Connect to the outdoor
power circuit board(CN4)