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iO HVAC Controls T-32-P2 Universal Thermostat Instruction Manual

REMOTE ON/OFF OR OVERRIDE  
Using an external dry contact switch, the T-32-  
P2 can be configured to turn the thermostat off  
or change the heating and cooling setpoints to  
a pre-programmed override value.  
(Figure 9)  
TT TERMINAL FUNCTIONS  
INDOOR SENSOR WIRING  
When the T-32-S1 is used as an indoor sensor, the  
T-32-P2 can be configured to allow only the  
remote sensor to control the temperature (TT=RS)  
or both the remote and onboard sensor can be  
used for temperature averaging (TT=AV). An  
optional in-line switch can also be used with the  
remote sensor to change the temperature sensing  
location from remote to onboard sensor. The  
Advanced Installer menu setting must be TT=RS  
to use this feature. (Figure 7)  
To turn the thermostat off, TT=OF in the Advanced  
Installer menu. When the switch is closed, the  
T-32-P2 will turn off and the word OFF will flash on  
the LCD. When the switch is opened, the  
thermostat will return to the user settings.  
Y2  
G2  
W1  
O/B  
W2  
G3  
24  
24C  
B
A
T
T
G1  
R
Y1  
For remote override, TT=OC in the Advanced  
Installer menu. Override setpoints are programmed  
in the Advanced Installer menu using ‘OC’ (Cooling  
setpoint) and ‘OH’ (Heating setpoint). When the  
switch is closed, the user setpoints are replaced by  
the pre-programmed override setpoints. When the  
switch is open, the thermostat will return to the user  
settings.  
T-32-S1 SENSOR  
Y2  
G2  
W1  
O/B  
W2  
G3  
FIGURE 7  
24  
24C  
B
A
T
T
G1  
R
Y1  
T-32-S2 SENSOR  
T-32-S2 SENSOR  
Y2  
W1  
W2  
G3  
FIGURE 8  
24  
24C  
B
A
T
T
G1  
R
Y1  
G2 O/B  
FIGURE 9  
USING MULTIPLE SENSORS FOR  
TEMPERATURE AVERAGING  
Multiple sensors can be connected to the ‘T’ and  
‘T’ terminals if temperature averaging is required  
with or without the use of the thermostat onboard  
sensor. The total value of remote sensors wired in  
series/parallel must equal 10kΩ @ 77 F.  
The onboard sensor is not part of the equation.  
Figure 8 shows (2) T-32-S2 sensors used for  
TESTING  
Testing ensures that the thermostat and the HVAC  
equipment operate properly. Follow the detailed  
testing steps and refer to the Troubleshooting Guide  
in this manual if any problems are encountered.  
For three sensors, (1) T-32-S2 and (2) T-32-S1  
sensors can be wired in series / parallel. For four  
sensors, (4) T-32-S1 sensors can be wired in  
series / parallel. Both of these configurations can  
be used with or without the thermostat onboard  
sensor. To include the onboard sensor, TT=AV. To  
exclude the onboard sensor, TT=RS.  
When the T-32-P2 is powered, the LCD will briefly  
show all available LCD icons, software version, then  
display the time and operating mode, etc.  
9
GeneralDetails
NameiO HVAC Controls T-32-P2 Universal Thermostat Instruction Manual
MakeiO HVAC Controls
LanguageEnglish
FiletypePDF (Download)
File size0.36 MB
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iO HVAC Controls T-32-P2 Universal Thermostat Instruction Manual