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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
10KΩ 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.