Source 1 S1-THEU21P7S User manual

System Powered
System Powered
Control up to 2-Heat & 1-Cool
Control up to 2-Heat & 1-Cool
Backlit Digital Display
Backlit Digital Display
Auxiliary Heat Indicator
Auxiliary Heat Indicator
Fahrenheit or Celsius
Fahrenheit or Celsius
Turn off the power to the Heating/Air
Conditioning system at the main fuse panel.
Most residential systems have a separate
breaker for disconnecting power to the furnace.
Remove the cover of the old thermostat and
loosen the screws holding the thermostat base
or subbase to the wall to lift away.
Disconnect the wires from the old thermostat.
Tape the ends of the wires as you disconnect
them, and mark them with the letter of the
terminal for easy reconnection to the new
thermostat.
SAMPLE WIRING DIAGRAMS
5 Wire, 1 Stage Heat Pump
B reversing valve.
Residential Heat Pumps, split systems &
package units, with no auxiliary heat.
5 Wire, 1 Stage Heat Pump
O reversing valve.
Residential Heat Pumps, split systems
& package units, with no auxiliary heat.
POWER
R
REVERSING VALVE
O
FAN
G
POWER
R
REVERSING VALVE
B
5 Wire, 1 Stage Cool &
Heat-Gas or Electric
Residential Gas or Electric
Heat, Electric Cool, split
systems & package units
4 Wire, 1 Stage Heat
Gas or Electric
Residential Gas or Elec-
tric Heat units with a sep-
arately controlled fan.
GAS OR
ELECTRIC
HEAT
W
FAN
G
POWER
R
COOLING
Y
FAN
G
POWER
R
W
GAS OR
ELECTRIC
HEAT
4 Wire, 1 Stage Cool
Residential Electric Cool
units.
FAN
G
POWER
R
Y
COOLING
Wire from the
old thermostat
terminal marked Function
Install on the
new thermostat
connector marked
Y1 or Y Electric Cool Y1
W1/O/B
BRev. Valve
(Energize to Heat)
W1, W or H Gas Furnace W1/O/B
W2 Aux. Heat W2
W1/O/B
Rev. Valve
(Energize to Cool)
O
C Common C
PowerRh, R, M, Vr, A R
G or F Fan G
TERMINAL CONNECTIONS
A COMMON WIRE MUST BE CONNECTED
IN ALL APPLICATIONS.
C
R
Y1
W1/O/B
G
W2
6 Wire, 1 Stage Cool &
2 Stage Heat-Heat Pump
O reversing valve.
Residential Heat Pumps, split
systems & package units, with
auxiliary heat. FAN
G
POWER
R
COMPRESSOR
Y
ELECTRIC
HEAT
W2
FAN
G
COMMON
C
COMPRESSOR
Y
COMMON
C
COMPRESSOR
Y
COMMON
C
REVERSING
VALVE
O
COMMON
C
COMMON
C
C
COMMON
to C
to R
to Y1
to W1/O/B
to G
to C
to R
to Y1
to W1/O/B
to G
to C
to R
to Y1
to W1/O/B
to G
to W2
to C
to R
to Y1
to W1/O/B
to G
to C
to R
to W1/O/B
to G
to C
to R
to Y1
to G
I n s t a l l a t i o n I n s t r u c t i o n s
I n s t a l l a t i o n I n s t r u c t i o n s
Model
S1-THEU21P7S
7 Da y
Pr o gr a m ma b le
7 Da y
Pr o gr a m ma b le
HVAC SERVICE PARTSTM
MODE

JUMPER SETTINGS
C
c
F
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Battery Stat P/N S1-THEU21P7S
4Z95
P/N 88-590
Rev. 1
TEST OPERATION
On the thermostat, use the MODE button to
place the thermostat into the OFF mode.
On the thermostat, use the MODE button to
place the thermostat into the COOL mode.
Press the FAN button to display the Fan On icon.
The fan should turn on and run continuously.
On the thermostat, use the MODE button to
place the thermostat into the HEAT mode.
Note: You may need to wait up to five minutes for
heating to energize due to the compressor lockout
feature.
If your HVAC unit is equipped with 2nd stage strip
heat, press the WARMER button once. 2nd stage
heating (W2) should energize.
Note: You may need to wait up to five minutes for
cooling to energize due to the compressor lockout
feature.
TROUBLE SHOOTING
SYMPTOM: The Cooling does not attempt to
turn on.
CAUSE: The cooling setpoint is set too high
or the thermostat is not in the Cool mode.
section in the Owner’s Manual to:
Lower the cooling setpoint
Place the thermostat into the Cool mode
SYMPTOM: The Heating does not attempt to
turn on.
CAUSE: The heating setpoint is set too low
or the thermostat is not in the Heat mode.
section in this manual to:
Raise the heating setpoint
Place the thermostat into the Heat mode
REMEDY: Consult the Normal Operation
REMEDY: Consult the Normal Operation
GAS FURNACE w/ ELECTRIC COOL
With Demand
Cooling Mode
Heating Mode
Y, G
W1, W2*, (G)**
*W2 will only be active during 2nd stage heating.
**In this application 24v will not be present at the
‘G’ terminal as the fan will be controlled by the
Gas Furnace.
With Demand
Cooling Mode
Heating Mode
Y, G, O
Y, G, W2*
HEAT PUMP w/ O REVERSING VALVE
*W2 will only be active during 2nd stage heating.
With Demand
Cooling Mode
Heating Mode
Y, G
Y, G, B, W2*
HEAT PUMP w/ B REVERSING VALVE
*W2 will only be active during 2nd stage heating.
ELECTRIC STRIP HEAT w/ ELECTRIC COOL
With Demand
Cooling Mode
Heating Mode
Y, G
W1, G, W2*
*W2 will only be active during 2nd stage heating.
GAS
GAS
JP 1
JP 2
JP 3
ELEC
GAS
JP 1
JP 2
JP 3
HP
O
ELEC
JP 1
JP 2
JP 3
GAS
GAS
B
JP 1
JP 2
JP 3
HP
B
ELEC
GAS
GAS
O
ELEC
HP
O
B
O
B
HP
GAS
Model
S1-THEU21P7S
MODE
I n s t a l l a t i o n I n s t r u c t i o n s
I n s t a l l a t i o n I n s t r u c t i o n s
7 Da y
Pr o gr a m ma b le
7 Da y
Pr o gr a m ma b le
HVAC SERVICE PARTSTM
Press the COOLER or WARMER button until the
set temperature is 10 degrees above room
temperature. The HVAC unit should energize in
the heating mode and the Heat icon should blink.
Press the COOLER or WARMER button until the
set temperature is 10 degrees below room temp.
The HVAC unit should energize in the cooling
mode and the Cool icon should blink.