Wiring schematics cont, Legend, Nskw installation manual – WaterFurnace Envision Hydronic User Manual
Page 21: Johnson fx-10
21
NSKW INSTALLATION MANUAL
Wiring Schematics cont.
Reversible - 380-420/50/3 cont.
Blk/Wht
Yellow
T
T
T
T
ELT
LLT
LST
LFD
T
SFP
T
EST
Brown (41)
Brown (42)
White (43)
Wht/Blu (44)
Black (45)
Blk/Red (46)
Gray (47)
Gray/Wht (48)
Blue (49)
Blue/Wht (50)
Orange (51)
Org/Wht (52)
Black
Blk/Wht (69)
Yellow (68)
97P799-12 1/19/12
Johnson
FX-10
5VDC
AI3
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
+
-
AI5
-
+
AI4
-
+
AI6
AI2
AI1
5VDC
5VDC
LED
-
-
-
+
+
+
24
VAC
24
VAC Com
GROUND
39
40
41
PWM2
PWM2 Com
PWM1
42
43
44
45
46
47
48
24VAC Com
DI12
DI11
DI10
DI9
DI8
DI7
49
50
51
52
53
54
55
56
DI 3/4/5/6/ Com
DI6
DI5
DI4
DI3
DI2
DI1
9VDC
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D09
D08
D07
D06
D05
D04
D03
D02
D01
J8
J2
J10
J9
J
7
A23 A13
A1
1
A21
A12
A25
A22
A32
A31
A35
A14
A24
A34
A33
A15
1
2
3
4
5
7
8
9
10
6
11
12
13
16
15
14
17
20
19
18
SHC
Secondary Unit
Heat/Cool
SE
Secondary Unit
Enable
LV
Load Valve
Output
L
Alarm
X1 Acc 1
X2 Acc 2
PO
Primary Load
Over-ride Output
SN
Secondary
24VAC Input
R
24VAC
ES
Emergency
Shutdown
9DC
9 VDC - Use
for CP and ES
CP
Compressor
Proving Switch
SF Source Flow
Proving Switch
O
Rev Valve
Y1 Comp 1
LF
Load Flow
Proving Switch
POI Primary Load
Over-ride Input
C
24V COM
18
17
16
15
14
12
11
10
9
13
8
7
6
3
4
5
2
1
Black (SHC)
Black (R)
Black (LV)
Black (X2)
Black (X1)
Black (L)
Black (PO)
Black (SE)
Black (SN)
Black (C)
Black (LF)
Black (POI)
Black (O)
Black (SF)
Black (Y1)
Black (ES)
Black (9DC)
Black (CP)
HP
RV
LP
Green/Yellow (67)
Black (37)
Black (22)
Black (26)
Black (26)
Black (40)
Black (40)
Black (38)
Black (38)
Black (35)
Black (35)
Yellow (34)
Black (33)
Black (33)
Black (31)
Black (31)
Black (30)
Black (30)
Black (28)
Black (28)
Black (27)
Black (27)
Black (25)
Violet (24)
Orange (23)
Yellow (21)
Yellow (21)
Yellow (29)
Black (36)
Black (55)
Black (55)
Black (55)
Black (56)
Black (56)
Black (56)
Black (58)
Black (58)
Black (58)
Black (63)
Black (63)
Black (64)
Black (64)
Black (65)
Black (65)
Blue (62)
Gray (61)
Red (60)
Black (59)
Blue (66)
PB2
2
1
3
NOTE 1
NOTE 2
NOTE 5
Black (53)
Black (53)
Black (53)
NOTE 5
NOTE 6
Black (57)
Black (57)
NOTE 6
Black (57)
CC
Green/Yellow (72)
ES
Emergency
Shutdown
9DC
9 VDC - Use
for CP and ES
CP
Compressor
Proving Switch
SF
Source Flow
Proving Switch
O
Rev Valve
Y1
Comp 1
SHC
Secondary Unit
Heat/Cool
SE
Secondary Unit
Enable
LV Load Valve Output
L
Alarm
X1 Acc 1
X2 Acc 2
PO
Primary Load
Over-ride Output
SN
Secondary
24VAC Input
R
24VAC
LF
Load Flow
Proving Switch
POI
Primary Load
Over-ride Input
C
24V COM
TB
Field Connection Diagram
(For units using Set Point control mode
with or without a secondary unit.)
To Primary Load Over-ride Input
(POI) of secondary unit.
To Y1 input of secondary unit.
To R from secondary unit.
To O input of secondary unit.
NOTE 7
NOTE 5
NOTE 6
NOTE 8
ES
Emergency
Shutdown
9DC
9 VDC - Use
for CP and ES
CP
Compressor
Proving Switch
SF
Source Flow
Proving Switch
O
Rev Valve
Y1
Comp 1
SHC
Secondary Unit
Heat/Cool
SE
Secondary Unit
Enable
LV Load Valve Output
L
Alarm
X1 Acc 1
X2 Acc 2
PO
Primary Load
Over-ride Output
SN
Secondary
24VAC Input
R
24VAC
LF
Load Flow
Proving Switch
POI
Primary Load
Over-ride Input
C
24V COM
TB
Field Connection Diagram
(For units using aqua stat control
mode.)
NOTE 7
NOTE 5
NOTE 6
NOTE 8
Aqua Stat Y1
NOTE 9
Thermistor
Relay coil
Switch - High pressure
Switch - Low pressure
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Internal junction
Field wire lug
Ground
Notes:
L1
Relay Contacts-
N.O., N.C.
Field Zone Sensor Wiring
Open Jumper
Closed Jumper
T
SFS - Source Flow Proving Switch
LFS - Load Flow Proving Switch
TB - Terminal Board
RV - Reversing Valve coil
LP - Low pressure switch
HP - High pressure switch
ELT - Entering Load Water Temp
ES - Emergency Shutdown
CP - Compressor Proving
Compressor contactor
CC -
LFD - Load Freeze Detection
Source Freeze Protection
SFP -
LLT - Leaving Load Water Temp
EST - Entering Source Water Temp
LST - Leaving Source Water Temp
Legend
Polarized connector
1 2 3
P
NOTE 3
Compressor
G
CC
T1
L1
T2
L2
T3
L3
T1
T2
T3
Blue
Black
Unit
Power Supply
Red
380-420/50/3
Blue
420V
Transformer
Red 380V
NOTE 1
1 - Switch Blue and Red wires for 380V operation
2 - Disconnect for -9 degree C load side freeze detection
3 - Disconnect for -9 degree C source side freeze detection
4 - Acc 1 and ACC 2 outputs are cycled with the compressor.
5 - R, C, Y1, and O inputs are for use with an aqua stat.
6 - If no flow proving switch is being used on the load side, the LF terminal on the terminal board must be
jumpered to the R terminal for the unit to operate.
7 - If no flow proving switch is being used on the source side, the SF terminal on the terminal board must
be jumpered to the R terminal for the unit to operate.
8 - A closed contact will enable the emergency shutdown input (ES) and the compressor proving input (CP).
9 - Primary over-ride input (POI) on a primary unit must be wired to R through anormally open contact. If the
POI input is on a secondary unit connect the Primary Over-ride output (PO) from the primary unit to the
POI terminal on the secondary unit.
10 - Apply 24VAC to the O terminal for cooling.
Orange (39)
Violet (70)
Black (54)
PB1
2
1
3
Black (20)
Black (19)
Black (18)
Black (17)
Black (16)
Black (15)
Black (14)
Black (13)
Black (12)
Black (11)
Black (10)
Black (9)
Black (8)
Black (7)
Black (5)
Black (6)
Black (3)
Black (4)
Black (2)
Black (1)