© COPYRIGHT 2010 PECO, INC. ALL RIGHTS RESERVED.
P/N 70476 3220-2265 REV 00
3
System Type 9: 1H/2C Conventional
System Type 10: 2H/2C Heat Pump
TERM
Function
TERM
Function
C
Common
C
Common
W1
Heat
B/O
Reversing Valve
W2
AUX
G
Fan
G
Fan
A
A
E
E
Y1
Cool 1
Y1
Compressor 1
Y2
Cool 2
Y2
Compressor 2
RH
Power for Heating
RH
Power for Heating
RC
Power for Cooling
RC
Power for Cooling
System Type 11: 3H/2C Heat Pump
TERM
Function
C
Common
B/O
Reversing Valve
AUX
Auxiliary Heat
G
Fan
A
E
Y1
Compressor 1
Y2
Compressor 2
RH
Power for Heating
RC
Power for Cooling
Part II: attach wIres to thermostat wallPlate (cont.)
2. Using a small fl athead screwdriver, loosen the screws on the terminal blocks that
correspond to the system type (see Table 1 ).
3. Strip the insulation of each wire at a proper length (about 1/4” or 64 cm).
4. On the wallplate, insert wires into the terminal blocks that correspond to the system
type, then re-tighten each screw for each terminal (see Fig. 4).
note: Do not over-tighten screws or use excessive force.
5. Assure that no uninsulated wires are exposed: Cap off and place a wire-nut on any
unused wires. Assure that the attached wires fi t into the cavity on the back side of the
thermostat.
Part III: connect Power to the thermostat
1. Choose from the following options to power the thermostat.
Power options
The Performance PRO T4000 Series will operate on 24VAC power and/or two AA
batteries (both are recommended). Choose from three methods to connect power to the
thermostat.
• Batteries only (AA alkaline)
• 24 VAC direct connection only
• 24 VAC with AA battery backup (highly recommended)
wiring 24 vac common
• single-transformer system
: Connect the common side of the transformer to
the “C” screw terminal of the thermostat wallplate. Assure that the metal jumper
connects “RC” and “RH.” Connect power side to the RC/RH and assure that the
jumper remains in place.
• two-transformer system:
The T4000/T4500 is shipped with a jumper connecting
terminals RH and RC. If the heating and cooling equipment do not use separate
transformers, leave this jumper in place. If separate transformers are required,
remove this jumper. With the jumper removed, connect RC to the power side of the
cooling transformer. Connect RH to the power side of the heating transformer; then
connect both the heating and cooling commons together to terminal C (Common).
Part Iv: Install BatterIes
Insert two AA batteries (included) into the back compartment of the thermostat, where
indicated (see Fig. 5).
Part v: set the clock, month, anD DaY
When power is fi rst applied to the thermostat, it will activate the clock display. It
is recommended that the time and day are entered before performing advanced
confi guration. Follow the procedure below to set the clock, month, and day (see Fig. 6).
1. Press ▲/ ▼ to select 12 or 24 HR mode, then press
Next.
2. Press ▲/ ▼to select clock hour, then press
Next
.
3. Press ▲/▼to select clock minutes, then press
Next
.
4. Press ▲/ ▼ to select clock year, then press
Next
.
5. Press ▲/ ▼ to select current month, then press
Next
.
note
:
Mo
(month) appears.
6. Press ▲/ ▼to select current date.
note
:
Days
appears.
7. Press
Done
to fi nish clock mode.
Part vI: verIFY sYstem settInG Is tUrneD oFF
1. Press any key to enter the Home Display.
2. Press
System
to enter system settings.
3. Press ▲/ ▼to select “Off,” then press
Done
.
4. Press
Fan
key to enter fan mode.
5. Press ▲/ ▼to select “Auto,” then press Done.
note: the fl ashing option is the selection.
Figure 5.
Insert two AA batteries
in back of thermostat.
Figure 4.
Insert wires into
appropriate terminal
blocks.
Enlarged area
shows wire
insertion point
above terminal
block
•
caUtIon: Do not connect
unused wires together.
▲
!
Figure 6.
Clock must
be set before
performing
advanced
confi guration.
