15
5 SERIES 502W12 INSTALLATION MANUAL
Wiring Schematics cont.
208-230/60/1 with IntelliStart cont.
24V
T
ransformer
PB1
2
3
1
1
2
3
4
5
7
8
9
10
6
11
12
13
16
15
14
17
20
19
18
A
Black
Red
208V
Blue
230V
Black/White
Yellow
Yellow
Yellow
Yellow
Yellow (24)
Y1
COMP 1
LC1
Comp A
Alarm
RS
NOT USED
X2
DO-7
R
24VAC
SS
DO-8
LC2
Comp B
Alarm
X1
Acc
C
24VAC COM
TO
NOT USED
SC
NOT USED
AIC
NOT USED
L
NOT USED
O/B
REV VALVE
G
NOT USED
Y2
COMP 2
16
12
8
2
9
4
10
7
5
3
11
14
6
13
15
1
TB
Black (SS)
Black (C)
Black (RS)
Black (R)
Black (X2)
Black (LC2)
Black (LC1)
Black (X1)
Black (Y1)
Black (Y2)
Black (O/B)
Black (G)
Black (AIC)
Black (SC)
Black (L)
Black (TO)
B
Black/White (26)
Black (30)
Black (29)
Black (29)
Yellow (25)
Yellow (25)
Black (28)
Black (28)
Brown (53)
Brown (53)
Brown (52)
Brown (52)
Blue (51)
Blue (51)
Black (75A)
Black/Org (75B)
CC-B
CC-A
Violet (67)
Violet (66)
Black/White (27)
Black/White (27)
Blue (45)
Blue (46)
Orange (47)
White (67)
White (66)
Blue (50)
Orange (60)
Orange (61A)
Black (70A)
Black/Org (70B)
NOTE 4
NOTE 8
NOTE 1
CCP
L1
L2
T1
T2
Black/White (26)
Black/White (62)
G
Load
Pump
G
External
Source
Pump
NOTE 10
CC-P
RT1
R1
Black (101)
Green/Yellow (16)
Red (104)
Black (95)
R1
Black (F1)
Black (F2)
Black (F3)
Black (F4)
Black (F5)
Black (F6)
Black (F7)
Black (F8)
Black (F9)
Black (F10)
Black (F11)
Black (F12)
Black (F13)
Black (F14)
Black (F15)
Black (F16)
Black (F17)
Black (F18)
Black (F19)
Black (F20)
Timer (delay on close)
Black (30)
Yellow (102)
97P841-02 03/15/12
Ground
Legend
CC – Compressor Contactor
CS – Current Switch
ELT – Entering Load Temp
ES – Emergency Shutdown
EST – Entering Source Temp
HP – High Pressure
LFS – Load Flow Switch
LLT – Leaving Load Temp
LP – Low Pressure
LST – Leaving Source Temp
L-WCT – Load Water Coil Temp
PB – Power Block
RV – Reversing Valve
SFS – Source Flow Switch
S-WCT – Source Water Coil Temp
TB – Terminal Board
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Field Supplied Option
Thermistor
Relay coil
T
Open Jumper
Closed Jumper
¼” Quick Connector
Notes
1 – Swap Red and Blue Transformer wires for 208V operation.
2 – Disconnect for 15 degree F source side low water coil limit.
3 – Disconnect for 15 degree F load side low water coil limit.
4 – Acc output is cycled with the lead compressor.
5 – If no flow switch is being used on the load side, the input must be
jumpered to PB2-3 for the unit to operate.
6 – If no flow switch is being used on the source side, the input must
be jumpered to R on PB1-1 for the unit to operate.
7 – Jumpers must be set as shown for correct control operation. If
a communication card is present, it must be removed to verify
jumper settings.
8 – The reversing valve will be energized for cooling mode.
9 – Used for Emergency Shutdown in conjunction with a normally
open relay.
10 – External load and source pumps must be externally fused.
RT – Timer (delay on close)
Содержание 502W12
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