WaterFurnace Envision Hydronic (NSW) - Manual (Page 20)

20
NSW INSTALLATION MANUAL
Wiring Schematics - Commercial
NSW Heating Only - 208-230/60/3
T
T
T
T
ELT
LLT
LST
LFP
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)
Blk/Wht (69)
Yellow (68)
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
VA
C
24
VA
C Co
m
GR
OU
ND
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
A2
3
A1
3
A1
1
A2
1
A1
2
A2
5
A2
2
A3
2
A3
1
A3
5
A1
4
A2
4
A3
4
A3
3
A1
5
1
2
3
4
5
7
8
9
10
6
11
12
13
16
15
14
17
20
19
18
LP
Green/Yellow (67)
Black (37)
Black (22)
Black (26)
Black (26)
Black (40)
Black (38)
Black (35)
Yellow (34)
Black (33)
Black (31)
Black (30)
Black (28)
Black (27)
Black (25)
Violet (24)
Yellow (21)
Black (55)
Black (55)
Black (56)
Black (56)
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 2
NOTE 3
Black (53)
Black (53) NOTE 6
Black (57)
NOTE 7 Black (57)
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:
1 - Switch Blue and Red wires for 208V operation
2 - Disconnect for 15 degree load side freeze detection
3 - Disconnect for 15 degree 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 a normally 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.
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 -
LFP - Load Freeze Protection
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
Compressor
G
CC
T1
L1
T2
L2
T3
L3
T1
T2
T3
Blue Black
Unit
Power Supply
Red
208-230/60/3
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)
97P799-05 4/02/09