WaterFurnace Envision Hydronic (NSW) - Manual (Page 21)

21
NSW INSTALLATION MANUAL
Wiring Schematics - Commercial cont.
NSW Heating Only - 208-230/60/3
Transformer
Red 208V
Blk/Wht
NOTE 1
Yellow
Blue 230V
Black
97P799-05 4/02/09
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
Black (40)
Black (38)
Black (35)
Black (33)
Black (31)
Black (30)
Black (28)
Black (27)
Yellow (21)
Yellow (29)
Black (36)
Black (55)
Black (56)
Black (58)
NOTE 6 Black (53)
NOTE 7
Black (57)
CC
Green/Yellow (72)
ES
Emergency
Shutdown
9 DC
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 8
NOTE 6
NOTE 7
NOTE 9
ES
Emergency
Shutdown
9 DC
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 8
NOTE 6
NOTE 7
NOTE 9
Aqua Stat Y1
NOTE 10
Violet (70)
Black (54)
PB1
2
1
3