58
UNT-SVX07A-EN
Operation
sequence of
operation
Table O-SO-14. Analog inputs
description
terminals
function
range
zone
TB3-1
space temperature input
5° to 122°F (-15° to 50°C)
ground
TB3-2
analog ground
NA
set
TB3-3
setpoint input
40° to 115°F (4.4° to 46.1°C)
fan
B3-4
fan switch input
4821 to 4919 W (off)
2297 to 2342 W (auto)
10593 to 10807 W (low)
13177 to 13443 W (medium)
15137 to 16463 W (high)
ground
TB3-6
analog ground
NA
analog input 1
J3-1
entering water temperature
-40° to 212°F (-40° to 100°C)
J3-2
analog ground
NA
analog input 2
J3-3
discharge air temperature
-40° to 212°F (-40° to 100°C)
J3-4
Analog ground
NA
analog input 3
J3-5
fresh air temp/generic temp
-40° to 212°F (-40° to 100°C)
J3-6
Analog ground
NA
analog input 4
J3-7
universal input
0 – 100%
generic 4-20ma
0 – 100%
humidity
0 – 2000ppm
CO
2
J3-8
analog ground
NA
ground
J3-9
analog ground
NA
Notes:
1. The zone sensor, entering water temperature sensor, discharge air sensor, and the outside air temperature sensor are
10K
Ω
thermistors.
2. Zone sensor: Wall mounted sensors include a thermistor soldered to the sensor’s circuit board. Unit mounted sensors
include a return air sensor in the units return air stream.
3. Changeover units include an entering water temperature sensor.
Table O-SO-15. Analog inputs
description
terminals
function
range
zone
TB3-1
space temperature input
5° to 122°F (-15° to 50°C)
ground
TB3-2
analog ground
NA
set
TB3-3
setpoint input
40° to 115°F (4.4° to 46.1°C)
fan
B3-4
fan switch input
4821 to 4919 W (off)
2297 to 2342 W (auto)
10593 to 10807 W (low)
13177 to 13443 W (medium)
15137 to 16463 W (high)
ground
TB3-6
analog ground
NA
analog input 1
J3-1
entering water temperature
-40° to 212°F (-40° to 100°C)
J3-2
analog ground
NA
analog input 2
J3-3
discharge air temperature
-40° to 212°F (-40° to 100°C)
J3-4
Analog ground
NA
analog input 3
J3-5
fresh air temp/generic temp
-40° to 212°F (-40° to 100°C)
J3-6
Analog ground
NA
analog input 4
J3-7
universal input
0 – 100%
generic 4-20ma
0 – 100%
humidity
0 – 2000ppm
CO
2
J3-8
analog ground
NA
ground
J3-9
analog ground
NA
Notes:
1. The zone sensor, entering water temperature sensor, discharge air sensor, and the outside air temperature sensor are
10KW thermistors.
2. Zone sensor: Wall mounted sensors include a thermistor soldered to the sensor’s circuit board. Unit mounted sensors
include a return air sensor in the units return air stream.
3. Changeover units include an entering water temperature sensor.
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