WaterFurnace Envision Hydronic - Manual (Page 19)

19
NSKW INSTALLATION MANUAL
Wiring Schematics cont.
NSKW Reversible with IntelliStart - 240/50/1
97P798-16 01/19/12
Transformer
NOTE 1
Red
208 V
Compressor
Unit
Power Supply
CC
T1
L1
T2
Brown
G
C
R
S
Blue
Factory low voltage wiring
Legend
Switch - High pressure
Switch - Low pressure
Relay coil
Field wire lug
Ground
Relay Contacts -
N.O., N.C.
Polarized connector
Notes:
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Quick connect terminal
Screw terminal -
field connection CC -
HP -
LP -
LPR -
Compressor Contactor
High Pressure Switch
Low Pressure Switch
Load Pump Relay Contacts
L1
1 3 2
P
Capacitor
24V
Microprocessor Control
TEST
PIN
HP
HP
CC
CG
HI
LO
C
LP
LP
R
CC
CG
HI
LO
C
LP
LP
R
HP
LP
Black/
White
Blk/Wht
Violet
White/Blue
White/Blue
LPR
T
RT
Orange
X1
EL
T
EL
T
RT
RT
X2
X1
X1
EL
T
EL
T
RT
RT
X2
X1
RV - Reversing Valve Output
ELT - Entering Load Side Water Temperature
Green/Yellow
T Thermistor
P1
P2
P3
X3 X3
X3 X3
LPR
Interface Panel
Black
Black
Yellow
Violet
Violet
Orange
Orange
Gray
Gray
1
2
3
4
5
6
7
8
TB
1
1
G
Load
Pump
External
X2 X2
PS1
RVRVG
RT - Refrigerant Liquid Line Temperature
SIR
SIR - Slave Input Relay
R C Y1 O X1
G
External
SI
RC - Reversing Valve Coil
Fuse
Cap
9
10
11
12
1. Taped and wire tied off
2. 3AG 10 Amp fuse
3. Move jumper wire to 5 and 6 for reversible secondary unit
4. Black Thermistor - Source Coax
Blue Thermistor - Load Coax
5. For cycle load pump with a geo storage tank. Remove the
orange wire from the LPR relay coil and install a jumper
between the LPR relay coil and the comp contactor coil
as shown in the schematic above.
Not Used
Not Used
Not Used
Green/Yellow
Yellow
24 V
B C D
L2 L2 L1 L1
T1 T1 T2 T2
LFB SFB
LFB -
SFB -
Load Pump Fuse Block
Source Pump Fuse Block
NOTE 2
Brown/Wht
Brown/Blk
Red
Black
Orange
Black/Gry
Black/Wht
L2
208-240/50/1
Source
Pump
MODE
RVR
RVR
T
RT
Yellow
RC
NOTE 3
RVR
T
ELT
RVR - Reversing Valve Relay
Org/Wht Org/Blk
Blue Blue
Black Black
Yellow
Yellow
Violet
Black/Org
Org/Gry
Org/Brn
HP
HP Black
Black
Red
Org/Grn
Orange
NOTE 4
Note 5
CC
Black
Com
Blue/Wht
Blue
Blue
240V
Black
Tan
Black
Run Winding
Active
Start
Common
IntelliStart
Pink
Black
2
1
PB
Red Red
Blue