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Specifications subject to change without notice
Nordic Technology Ltd
www.fast-stat.com
Model 1000 used to extend wiring to a 2-stage condenser using 2- Model 1000's.
"Grounded Commons" wiring method.
C
R
W
Purple
Yellow
Green
Thermostat
Sender
Purple
Thermostat
Cable
Yellow
Green
G
Y1
C
R
G
W
Transformer
Fan
Control
Heat
Control
Stage 1
Furnace /
Air Handler
C
Condenser
R
Y1
Red
Y2
Stage 2
Y1 Y2
Existing
condenser
cable
Y2
Receiver
F
A
S
T
-S
T
A
T
1
0
0
0
Purple
Black
Receiver
F
A
S
T
-S
T
A
T
1
0
0
0
Yellow
Green
Red
Control
Board
Black
Connect indoor & outdoor unit
commons "C" to electrical ground.