Appendix A - Wiring Schematics - Carrier 19XRV Start-Up And Service Instructions

EXT
AUTO DEMAND LIMIT
4-20mA
(OPTIONAL)
(1-5vdc)
EXT
AUTO CHILLED WATER
4-20mA
RESET (OPTIONAL)
(1-5vdc)
+ -
6
(RED) 1
EVAP ENT
WATER TEMP
(BLK) 2
(RED) 3
EVAP LVG
WATER TEMP
(BLK) 4
5
(RED)
COND ENT
WATER TEMP
6
(BLK)
(RED) 7
COND LVG
WATER TEMP
(BLK) 8
4
(CLR) 9
G.V. POSITION
8 7
FEEDBACK
(BLK) 10
10K
(SHIELD)
(RED) 11
EVAP REFRIG
LIQUID TEMP
(BLK) 12
REMOTE TEMP
(WHT) 13
RESET
14
(BLK)
(OPTIONAL)
15
16
(RED) 17
COMP'R
DISCH TEMP
(BLK) 18
1
(CLR) 19
COMP'R THRUST 2
(BLK) 20
BRG TEMP
3
(SPARE)
21
(RED)
COMP'R OIL
SUMP TEMP
(BLK) 22
1
(CLR) 23
COMP'R 2
(BLK) 24
MOTOR TEMP
3
(SPARE)
NOISE
SUPPRESSOR
(WHT) 25
SPARE TEMP #1
(OPTIONAL)
(BLK) 26
(WHT) 27
SPARE TEMP #2
(OPTIONAL)
(BLK) 28
(BLK) 1
-
OIL SUMP
(CLR) 2
PRESS
+
3
(RED)
(BLK) 4
-
OIL PUMP
(CLR) 5
DISCH PRESS
+
(RED) 6
(BLK)
7
LOAD RESISTOR
8
-
4.3K
RELATIVE
9
S
RMS
HUMIDITY
(RED)
+
(WHT)
10
11
LOAD RESISTOR
12
10K
13
14
LOAD RESISTOR
15
4.3K
16
17
JUMPER
18
19
20
LOAD RESISTOR
21
4.3K
22
23
JUMPER
24
(BLK) 1
-
EVAP PRESS (CLR) 2
+
(RED) 3
4
(BLK)
-
COND PRESS 5
(CLR)
+
(RED) 6
APPENDIX A — WIRING SCHEMATICS
CHILLER CONTROL SCHEMATIC
(SHIELD)
(SHIELD)
6
+ - + - + - - +
3 2 1 4 3
5 4 3 2 1
J5 J6 J7 J8
SWITCH POSITION
1 2 3
O
SW "ON" = EXT 4-20mA
N
SW "OFF" = EXT 1-5Vdc
SW2
1 "OFF"
2 "ON"
3 "ON"
CCM
+
100»f
+
100»f
ALL SWITCHES SET
TO "OFF" POSITION
2
CB1
1 (GRY)
(RED)
(BLK)
(CLR)
(CLR)
(BLK)
4-20mAkw
OUTPUT
- +
2 1
(BLU)
(ORN)
L1
L2
DIFFUSER ACTUATOR
(SHIELD)
COMMON
3 (CLR) X
G.V. INCREASE
2 (RED) 3
G.V. DECREASE
1 (BLK) 2
L1
L2
GUIDE VANE ACTUATOR
(YEL)
CB2
6
(BLK) (BLK)
5 ( B R N ) ( B L K )
3 1
4 (BLU) 3C (BRN)
3 (BLK)
C2 C1
2
(WHT) 2C
C2 C1
1 (ORN) 1C (BRN)
(BRN)
(WHT)
( S H I E L
(RED)
( C L R )
( B L K )
(RED)
(GRY)
J7
6
J1
(RED) (RED) 5
(GRY) 4
(GRY) (BLK) 3 -
(CLR) 2 G
1 +
(GRY) (RED)
J8
SERVICE
28
(WHT)
(BLK)
(YEL)
(BLK)
(WHT)
(RED)
(BLK)
(CLR)
(BLK)
VFD COOLANT
*
SOLENOID
(BRN)
( C L R )
HGBP (OPTIONAL) ( W H T
(BRN)
(WHT)
COMP'R OIL PUMP
(RED)
COMP'R OIL HEATER
(GRY)
NOTE: GND SHIELDS AT THIS END ONLY
D ) ( S H I E L D )
+ (RED)
G ( W H T )
- ( B L K )
SP
1
2
ALARM
R
ICVC
24VAC
STOP
a19-1946
)
C C N