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Specifications subject to change without notice
Nordic Technology Ltd
www.fast-stat.com
P
u
rp
le
Yellow
Green
S
e
n
d
e
r
Purple
Green
Yellow
Purple
Thermostat Cable
Black
R
e
la
y
Sender
Receiver
R
e
la
y
Red
Yellow
Green
Outputs
To 24 volt
power
Inputs
Green
Red
F
A
S
T
-S
T
A
T
1
0
0
0
Purple
Black
Thermostat
Cable
C
Transformer
Fan
Heat
L1
N
Indoor Unit
Y
R
W
Thermostat
G
Air Conditioner
Y R
W G
Y
C
Step 1
This is how a typical single-stage heating and cooling system will be
wired before the powered thermostat is installed.
Step 2
Shut off power to the furnace. Remove the existing the thermostat. Using
the chart below, write down the colors of the wires connected to the R, W, G
and Y terminals before disconnecting.
R
W
G
Y
C
Purple
Step 3
Using the chart above, connect the thermostat wires to the R and W terminals
of the powered thermostat. Connect the Sender green wire to the thermostat
G terminal. Connect the Sender yellow wire to the thermostat Y terminal.
At this point there will be two unused thermostat cable wires. Pick one wire
and connect it to the thermostat C terminal. Write down the color in the chart
above. Connect the remaining thermostat cable wire to the Sender purple wire.
Write down the color of the wire connected to the Sender purple wire in the
above chart.
Thermostat
Cable
C
Transformer
Fan
Heat
L1
N
Indoor Unit
Y
R
W
Thermostat
G
Air Conditioner
Y R
W G
Y
C
Step 4
At the indoor unit, remove the thermostat cable wires connected to the indoor unit
G and Y terminals. Install the Receiver and connect it's red wire to R, the black to
C, green to G and yellow to Y. Using the chart, connect the Receiver purple to the
same wire that was used at the thermostat. The remaining thermostat cable is then
connected to the indoor unit C. Check chart to make sure it is the right one.
C
Yellow
Step 5
Switch on the furnace power and test all thermostat functions in accordance
with the thermostat manufacturer's instructions.
Tech Support: 1-800-775-4750
Monday to Friday
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FAST-STAT Model 1000 - Installing a powered thermostat with a single transfomer & single-stage heating and cooling.
Internal Wiring
Nordic Technology Ltd www.fast-stat.com