User's Manual

TB7100A1000 MULTIPRO™ MULTISPEED AND MULTIPURPOSE THERMOSTAT
9 63-2675—03
Fig. 22. Typical hookup of PTAC with HI and LO fan speeds
(2H/1C).
POWER THE THERMOSTAT
You can choose from three methods to power the thermostat:
• Batteries only (AAA alkaline).
• 24 Vac direct connection only.
• 24 Vac direct connection with battery backup (AAA alkaline).
Wiring 24 Vac Common
• Single-Transformer System—Connect the common side of
the transformer to the C screw terminal of the thermostat
wallplate. Leave the metal jumper wire in place between Rc
and R.
• Two-Transformer System—Connect the common side of
the cooling transformer to the C screw terminal of the
thermostat wallplate. Remove the metal jumper wire
between Rc and R.
Installing Batteries
1. Install two AA alkaline batteries on the back of the ther-
mostat as marked. See Fig. 23.
Fig. 23. Installing batteries.
2. Locate and remove tab labeled Remove. See Fig. 24.
IMPORTANT
This tab must be removed in order to set the real-time
clock.
Fig. 24. Remove tab labeled REMOVE from
thermostat back.
Locate and Mount TR21 or C7189U Remote
Indoor Temperature Sensor (Optional)
Locate and mount the sensor in the same fashion as the
thermostat. See the Select Thermostat Location section.
Consider the following as well:
1. Be sure wire distance between sensor and thermostat is
less than 200 feet.
2. Mark the area on the wall selected for mounting the
sensor or junction box.
3. Sensor wire must be separate from the thermostat cable.
4. Run wire cable to a hole at the selected wall location.
5. Pull approximately three inches of wire through the
opening.
NOTE: Color-coded, 18-gauge wire is recommended.
COMPRESSOR CONTACTOR
M27427
CHANGEOVER VALVE
1
2
3
4
5
LOW FAN RELAY
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
WHEN USING BATTERIES, THE 24V COMMON CONNECTION IS
OPTIONAL.
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"
IN THE INSTALLER SETUP.
OPTIONAL INDOOR REMOTE SENSOR OR REMOTE SETBACK.
WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT
CABLE.
3
L1
(HOT)
L2
1
24 VAC
AUXILIARY HEAT RELAY
4
2
INDOOR TEMPERATURE
SENSOR/REMOTE
SETBACK
5
C
G
Y
O/B
RC
R
W1
G2
G3
S1
S2
HIGH FAN RELAY
M22259
BACK OF THERMOSTAT
BATTERY HOLDER
BATTERIES (2)
REMOVE
TAB
REMOVE DURING
INSTALLATION
M22260
REMOVE DURING
INSTALLATION