JOHNSON CONTROLS
13
FORM 160.76-PW6
ISSUE DATE: 09/06/2019
LD19489a
REMOTE CURRENT
LIMIT SETPOIN
T
REMOTE LCHL
T
SETPOIN
T
22
21 9 20 8
19 7 18 6
17 5 16 4
13
1
2
14
3
15
1
12 2
MICROBOARD
031-03630
+5
V
+5
V
GN
D
4-20 mA INPU
T
0 TO 10V INPU
T
0 TO 10V INPU
T
0 TO 10V INPU
T
0 TO 10V INPU
T
GND SPAR
E
+5V SPAR
E
GN
D
+5
V
+5
V
GN
D
4-20 mA INPU
T
4-20 mA INPU
T
4-20 mA INPU
T
+5
V
GN
D
12
+5
V
INPU
T
GN
D
23
24
NOT USED
2
4
WH
T
BL
K
4
2
+5
V
GN
D
INPU
T
STALL
DETECTOR
BOARD
031-02418
WH
T
PRV
POTENTIOMETER
2.5K
RE
D
BL
K
10
INPU
T
11
GN
D
J2-1
J2-4
J2-3
J1-3
J1-2
J1-1
LVD1G1N1
GN
D
+5
V
LVD1G1N0
4
3
2
1
5
6
7
8
+5
V
GN
D
LVD1G1N2
GN
D
+5
V
12
11
10
9
LVD1G1N3
+5
V
GN
D
J2-2
RED
WHT
BLK
GRN
ATTENTION:
IF FLOW SWITCHES ARE CONNECTED TO J14, MICROBOARD
JUMPERS JP10, JP11 AND JP12 MUST BE ON PINS 2 & 3.
4 16 15
INPU
T
GN
D
+12V
2
4
BL
K
WH
T
BL
K
WH
T
NOT USED
NOT USED
USED ON COMPR.
WITH VGD ONLY
USED ON COMPR.
WITH VGD, VSD
(OPTIONAL)
HGBP
ACTUATOR
MOV
3
WH
T
OR HGBP
KEY IN
KEY OUT
1 GND
13
12
11
10
9
8
7
6
5
4
3
2
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
9
8
7
6
5
4
50
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
3
2
1
TO
KEYPAD
1
2
3
4
4
5
1
2
3
BAS
POWER
(OPTION)
CURV
LWT I
GND
+12VF
GND
SHFCLK
LP (HSYNC)
FLM (VSYNC)
GND
RO
R1
R2
R3
R4
R5
GND
G0
G1
G2
G3
G4
G5
GND
B0
B1
B2
B3
B4
B5
GND
DISP EN
SW_VDD
SW_VDD
SW VDD
GND
GND
GND
GND
GND
GND
PID1
GND
PID0
GND
NO CONNECT
NO CONNECT
ROW 4
ROW 3
ROW 2
ROW 1
COL 7
COL 6
COL 5
COL 4
COL 3
COL 2
COL 1
COL 0
CUR I
LWTV
GND
+5VDC
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
BRIGHTNESS CONTROL -
BRIGHTNESS CONTROL WIPER
BRIGHTNESS C
EN BKLT
GND
GND
+V
+V
1
2
3
10
4
5
6
7
8
9
TO
DISPLAY
BACKLIGHT
1
2
3
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
1
2
3
WHT
4-20mA
RET
0-10V
TO
DISPLAY
+ -
1
3
+ -
1
3
CF
S
CONDENSER
FLOW SWITCH
EF
S
CHILLE
D
LIQUID
FLOW SWITCH
3
1
-
+
26
27
RE
D
WH
T
BL
K
SD
DISCHARG
E
PRESSURE
TRANSDUCE
R
(0.5-4.5V)
24
22
REMOTE
INTERFACE
CURRENT &
TEMP
BL
K
1
TO TB6-
5
TO TB6-162
RE
D
2
GN
D
(OPTIONAL)
HEAT RECOVERY OR
HEAD PRESSURE
CONTROL
OUTPUT
0-10V 4-20
mA
LIQUID
HEATIN
G
CONDENSER
FLOW SWITCH
(OPTIONAL
)
LIQUID
J7-
J8-
J18-
J6-
J5-
J21-
J22-
J14-
TB8-
TB6-
TB7-
TO TB6-162
TO TB6-5
23
MOV
(WHT)
2
(RED)
1
3
(BLK)
2
1
3
(RED)
1
3(WHT)
(BLK)
2
ORIFICE VALVE
ACTUATOR #1
ORIFICE VALVE
ACTUATOR #2
J-3
J-3
J-2
J-2
J-1
J-1
K1-K4
K4 ONLY
MICROBOARD DIAGRAM (031-03630)
FIGURE 4 -
MICROBOARD DIAGRAM (CONT'D)
LD19490a
035–25056–000
SHT. 4 OF 14
REV. I
TO
I/O
BD.
J1
20 10 8
12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
303A
317
318
307A
GN
D
EVAP. PRESS. FEEDTHROUG
H
COND. PRESS. FEEDTHROUG
H
DC UNDERVOLTAGE INPUT
1
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
1
2
3
4
-12V
+12V
+5V
+5V
+24VF
+12VF
SHIELD
+
-
-12V
GND
+12V
GND
+12V
SHLD
GTX
GRX
DTR1
TXD1
RXD1
DSR1
GND
GND
PRINTER
& BAS
3
2
RED
BL
K
+V
EN
+12V
EN SI
G
VS OIL
PUMP DRIVE
WH
T
1
PW
M
PWM SI
G
+24 VDC TO J31-
2
NOT USED
313C
5
4
3
2
+
GND
SHLD
309A
1
311A
+24V 7
319
315A
6
1
7
+24V
COM3
EXP I/O
SHIELD
RED
BLK
+
-
RED
BLK
-
+12V
MC2/MBC
1
COM 5A
TO J9 ON
LTC I/O BD.
GND
-12VF
308A
316A
TO J2-9 ON POWER SUPPLY
TO J2-11 ON POWER SUPPLY
TO J2-12 ON POWER SUPPLY
TO J2-1 ON POWER SUPPLY
TO J2-13 ON POWER SUPPLY
TO J2-7 ON POWER SUPPLY
TO J2-3 ON POWER SUPPLY
COM
TO P30-12
TO J32-7
TO J32-8
BL
K
RE
D
WH
T
14 3 13
6
7
17
RE
D
WH
T
BL
K
2
1
3
3
1 2
BL
K
WH
T
RE
D
HO
P
OIL PUMP PRESSUR
E
TRANSDUCER
(0.5-4.5V)
EP
EVAPORATO
R
PRESSUR
E
TRANSDUCER
(0.5-4.5V)
19 9 18
INPU
T
GN
D
+12V
GN
D
INPU
T
+5
V
+5
V
INPU
T
GN
D
15
14
11
3
1 2
BL
K
WH
T
RE
D
3
1 2
BL
K
WH
T
RE
D
CP
CONDENSER PRESSUR
E
TRANSDUCER
(0.5-4.5V)
LO
P
OIL SUMP PRESSUR
E
TRANSDUCER
(0.5-4.5V)
11 22 21
11 2 1
+5
V
INPU
T
GN
D
+5
V
INPU
T
GN
D
12
10
BL
K
RE
D
1 2
RT
3
OIL TEMP.
THERMISTO
R
2
1
RE
D
BL
K
2
1
RE
D
BL
K
2
1
2
1
RE
D
BL
K
RT
2
DISCHARGE TEMP.
THERMISTO
R
RT
6
DROP LE
G
REFRIG. TEMP
.
THERMISTO
R
RT
4
LEAVING COND
.
LIQUID TEMP. THERMISTO
R
14 4
15 5
16 6
17 7
18 8
BL
K
RE
D
1 2
BL
K
RE
D
1 2
RT
1
LEAVING CHILLED
LIQUID TEMP. THERMISTO
R
19 9
20 10
INPU
T
+5
V
+5
V
INPU
T
+5
V
INPU
T
+5
V
INPU
T
+5
V
INPU
T
INPU
T
+5
V
INPU
T
+5
V
3
13
INPU
T
+5
V
3
2
5
RE
D
BL
K
6
4
9
1
REFRIGERANT
LEVE
L
SENSO
R
(LLS
)
CONDENSER
RT
5
ENTERING COND
.
LIQUID TEMP. THERMISTO
R
RT
9
ENTERING CHILLED
LIQUID TEMP. THERMISTO
R
GND LUG
(OPTION TO SC-EQ)
COM
SPARE
TO MOTOR CONTROLLER
(SSS OR VSD)
J9-
J10-
J1-
J12-
J13-
J2-
J15-
TB2
TB10
J29-
J30-
J20-
J19-
J13
J12-
J24-
J25-
J2
TB2
POWER IN
J3-
BL
K
RE
D1
2
7
RT
7
EVAPORATO
R
REFRIG.TEMP. THERMISTO
R
USED ON Q COMPR. ONLY
HIGH PRESSURE CUTOUT SWITCH MOTOR CONTROLLER FAUL
T
CONTROL VOLAG
E
SAFETY STOP SWITCH SPARE OIL PUMP VSD FAUL
T
VANE MOTOR SWITC
H
VGD EXTENDED SWITC
H
THRUST BREAING PROX SWITC
H
REMOTE RUN/STOP SPARE REMOTE COOLING SETPOINT REMOTE CURRENT LIMIT SETPOINT CHILLED LIQUID FLOW SWITCH SYSTEM CYCLING SHUTDOWN MULTI UNIT SEQUENCE CYCLIN
G
SPARE
AUX. SAFETY SHUTDOW
N
CONDENSER LIQUID FLOW SWITCH AUTO LUBE LOW LEVEL INDICATOR
+5
V
GN
D
GN
D
GN
D
GN
D
+12V +12V LEVEL CONTROL VALVE CLOSE LEVEL CONTROL VALVE OPE
N
VGD CLOSE (EXTEND
)
VGD OPEN (EXTRACT
)
PRV CLOS
E
PRV OPEN HIGH SPEED THRUST SOLENOID VALV
E
OIL HEATE
R
MOTOR STARTER STOP MOTOR STARTER STAR
T
OIL RETURN SOLENOID VALV
E
SPARE
OIL SUMP CONDENSER REFRIGERANT PUMP (HIGH TEMP HP)
SPARE RELAY SPARE RELAY SPARE RELAY AUTO LUBE RUN CONDENSER LIQUID PUMP RU
N
CYCLING SHUTDOWN ALAR
M
SAFETY SHUTDOWN ALARM REMOTE MODE READY TO START WARNING ALAR
M
CHILLED LIQUID PUMP RU
N