Wiring schematics cont, Ndw installation manual, Legend – WaterFurnace Envision Hydronic (NDW) User Manual
Page 14
14
NDW INSTALLATION MANUAL
Wiring Schematics cont.
208-230/60/1 with IntelliStart Option
24V
Tran
sfor
mer
SFS
LFS
ES
Johnson FX
-1
0
5V
D
C
AI
3
35
36
37
38
+
-
AI
5
-
+
AI
4
-
+
AI
6
AI
2
AI
1
5V
D
C
5V
D
C
LED
-
-
-
+
+
+
24VAC
24VAC Com
GROUND
39
40
41
PWM2
PWM2 Com
PWM1
42
43
44
45
46
47
48
24
VA
C Com
DI
12
DI
11
DI
10
DI
9
DI
8
DI
7
49
50
51
52
53
54
55
56
DI 3
/4
/5/
6/
Com
DI
6
DI
5
DI
4
DI
3
DI
2
DI
1
9V
D
C
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D0
9
D0
8
D0
7
D0 6
D0
5
D0
4
D0
3
D0
2
D0
1
J8
J2
J1
0
J9
J7
NOTE 7
A21
A12
A25
A22
A32
A31
A35
A23
A13
A11
A15
A14
A24
A34
A33
34
LP
-A
LP
-B
31
30
29
28
27
26
25
24
23
22
21
20
A I4
EXP
5Vdc
Com
J2
5Vdc
5Vdc
Com
A I3
EXP
5Vdc
5Vdc
Com
A I2
EXP
5Vdc
5V dc
Com
A I1
EXP
5Vdc
17
16
15
14
13
12
11
10
DO3
24 V ac
DO4
DO5
DO6
24 V ac
24 V ac
Com
J3
24 V ac
J1
Main B
oar
d
Conn
ect
ion
A 41
A 31
A 23
A 13
A4
3
A4
2
A3
2
A3
3
A2
1
A2
2
A1
2
A1
1
4
3
2
1
D02
D01
6
D07
5
8
D08
7
Johnson FX
10
Expansion Board
PB
1
2
3
1
( Circuit
B
)
Current Switch
CSB
Black
Black
Compressor
Black (
F1
)
Black (
F2
)
Black (
F
3)
Black (
F4
)
Black (
F5
)
Black (
F6
)
Black (
F7
)
Black (
F8
)
Black (
F9
)
Black (
F10
)
Black (
F1
1)
Black (
F12
)
Black (
F13
)
Black (
F14
)
Black (
F15
)
Black (
F16
)
Black (
F17
)
Black (
F18
)
Black (
F19
)
Black (
F20
)
1
2
3
4
5
7
8
9
10
6
11
12
13
16
15
14
17
20
19
18
A
33
32
31
30
29
28
27
26
25
24
23
1
6
2
7
3
4
9
5
10
8
White
/Red (
80
)
White
/Red (
81
)
White
/Blue (
33
)
White
/Blue (
34
)
Yellow
/R
ed (
35
)
Yellow
/R
ed (
36
)
Yellow
/B
lue (
37
)
Yellow
/B
lue (
38
)
Ta
n/
Black (
84
)
Ta
n/
Black (
85
)
White
/Red (
80
)
White
/Red (
81
)
T
T
T
T
White
/Blue (
33
)
White
/Blue (
34
)
Ye
llow
/R
ed (
35
)
Ye
llow
/R
ed (
36
)
T
Ye
llow
/B
lue (
37
)
Ye
llow
/B
lue (
38
)
Ta
n/
Black (
84
)
Ta
n/
Black (
85
)
S-
W
C
T
Circuit A
L-
W
C
T
Circuit A
S-
W
C
T
Circuit B
L-
W
C
T
Circuit B
LL
T
Black
Red 208
V
Blue 230
V
Black
/White
Yellow
Yellow
Yellow
Yellow
Yellow (
24
)
Black (
95
)
Green
/Y
ellow (
23
)
Yellow (
21
)
Black
/White (
22
)
Y1
COMP
1
LC
1
Comp A Alarm
RS
DO
-9
X2
DO
-7
R
24
VA
C
SS
DO
-8
LC
2
Comp B Alarm
X1
Acc
C
24
VA
C COM
TO
NOT
USED
SC
NOT
USED
AIC
NOT
USED
L
NOT
USED
O/
B
REV V
AL
VE
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 (
R
S)
Black (
R)
Black (
X2
)
Black (
LC
2)
Black (
LC
1)
Black (
X1
)
Black (
Y1
)
Black (
Y2
)
Black (
O/
B)
Black (
G
)
Black (
AIC
)
Black (
SC
)
Black (
L)
Black (
TO
)
B
7/2
8/0
9
Black
/White (
26
)
Black (
30
)
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 (
75
A
)
Black
/Org (
75
B)
CC
-B
CC
-A
Black (
64
A)
Violet (
67
)
Violet (
66
)
Black
/White (
27
)
Black
/White (
27
)
2
3
1
PB
2
Black (
54
)
Red (
55
)
Gray (
56
)
Pink (
58
)
Brown (
57
)
Gray (
59
)
6
15
7
16
9
8
17
14
5
18
13
4
1
3
12
10
11
2
T
EST
Brn
/Wht (
86
)
Brn
/Wht (
87
)
T
LST
Brn
/Blk (
41
)
Brn
/Blk (
42
)
Blac
k
Blac
k
CS-
A
Circuit A
Blac
k
Blac
k
CS-
B
Circuit B
Blue (
45
)
Blue (
45
)
Blue (
46
)
Blue (
46
)
Blue (
45
)
Blue (
46
)
Orange (
47
)
Orange (
47
)
Orange (
47
)
Gray (
48
)
Connect to R on PB
1-
1
White (
67
)
White (
67
)
White (
67
)
White (
66
)
White (
66
)
White (
66
)
Blue (
50
)
Orange (
60
)
Orange (
60
)
Orange (
60
)
Ta
n/
White (
82
)
Ta
n/
White (
83
)
B lac
k (A
)
B lac
k (A
)
White
( B)
White
( B)
Orange (
61
A)
Orange (
61
A)
Orange (
61
B)
RV
1
RV
2
Orange (
60
A)
Orange (
61
A)
Orange
/W
ht (
60
B)
Orange
/W
ht (
61
B)
T
EL
T
Ta
n/
White (
82
)
Ta
n/
White (
83
)
Ta
n/
White (
82
)
Ta
n/
White (
83
)
Black (
49
)
Blue (
76
A)
Blue (
76
A)
Blue (
76
B)
Blue (
76
B)
Blue (
49
A)
Blue (
76
A)
Blue
/W
ht (
49
B)
Blue
/W
ht (
76
B)
BLACK
WIRE HARNESS
Black (
70
A)
Black
/Org (
70
B)
NOTE 2
NOTE 3
Notes
3
-D
isconnect for
15
degree F load side freeze detection
4
-A
cc output is cycled with the lead compressor
.
5
-If no flow proving switch is being used on the load side
, the input must be jumpered
to PB2-3 for the unit to operate.
2
-D
isconnect for
15
degree F source side freeze detection
7
-J
umpers must be set as shown for correct control operation
.
If a communication
card is present
, it must be removed to check the jumpers
.
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.
1
-S
wap Red and Blue
Transformer wires for
208
V operation
.
8
-R
eversing V
alve will be energized for cooling mode
.
9
-U
sed for Emergency Shutdown in conjunction with a normally open relay
NOTE 4
NOTE 5
NOTE 6
NOTE 8
NOTE 8
NOTE 9
NOTE 1
Ground
Legend
CC
– Compressor Contactor
CS
– Current Switch
EL
T
– Entering Load
Te
mp
ES
– Emergency Shutdown
EST
–
Entering Source
Te
mp
HP
–
High Pressure
LFS
– Load Flow Switch
LL
T
– Leaving Load
Temp
LP
–
Low Pressure
LST
–
Leaving Source
Temp
L-
WCT
–
Load W
ater Coil
Temp
PB
– Power Block
R
V
– Reversing V
alve
SFS
– Source Flow Switch
S-
WCT
–
Source W
ater Coil
Te
mp
TB –
T
erminal
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
HP-
A
HP
-B
Black
/Orange (
74
B)
Black
/Orange (
73
B)
Black (
74
A)
Black (
73
A)
Black (
65
A)
Black
/Orange (
64
B)
Black
/O
range (
65
B)
Black (
70
A)
Black
/Org (
70
B)
Black (
75
A)
Black
/Org (
75
B)
Black (
70
A)
Black
/Org (
70
B)
Black (
75
A)
Black
/Org (
75
B)
( Circuit
A
)
Compressor
Current Switch
CSA
Black
Black
Green
/Y
ellow (
16
)
EX
1
EX
2
Orange (6
1A
)
C
R
S
C
R
S
IntelliStart
Run Winding
Active
Start Winding
Common Winding
Unit Power Supply
#2
208
-230
/60
/1
G
L1
L2
Unit Power Supply
#1
208
-230
/6
0/
1
G
L1
L2
CCA
L1
L2
T1
T2
Black
PB
3
Ta
n (
52
A)
Blue
Black
Blue
Pink
Blue
Pink
Red
Red
Red
Red
CCB
L1
L2
T1
T2
GeoStart
Run Winding
Active
Start Winding
Common Winding
Red
Red
Red
Red
Black
Pink
CCP
L1
L2
T1
T2
Black
/White (
26
)
Black
/White (
62
)
Blue (
50
)
Tan (
52
B
)
Black
Blue 230
V
White (
8)
Black (
7)
G
Load Pump
G
External
Source Pump
NOTE 10
10
-E
xternal load and source pumps must be externally fused
.
CC
-P
Blue
Black
Blue
Pink
Blue
12 A
W
B
12 A
W
B