WaterFurnace Envision Hydronic - Manual (Page 18)

18
NSKW INSTALLATION MANUAL
Wiring Schematics
Heating Only - 240/50/1
97P798-14 01/19/12
Transformer
NOTE 1
Red
208V
Black
Com
Compressor
Unit
Power Supply
CC
T1
L1
T2
Tan
Brown
Blue
G
C
R
S
Black Red
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
L1
1 3 2
P
Capacitor
24V
Microprocessor Control
TEST
PIN
HP
HP
CC
CG
HI
LO
C
LP
LP
R
HP
HP
CC
CG
HI
LO
C
LP
LP
R
CC
HP
LP
Black/
White
Blk/Wht
Violet
Black
Black
White/Blue
White/Blue
Red
LPR
T
T
RT
ELT
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
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
SI
SI - 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. 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
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
Blue/Wht
Brown/Wht
Brown/Blk
Red
Black
Orange
Black/Gry
Violet
Black/Wht
L2
208-240/50/1
Source
Pump
MODE
Note 3
Blue
240V