NTI Triton VS80 Assembly, Installation And Operation Instructions page 20

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Triton
Installation and Operation Instructions - Installation Checklist
2) Outdoor Reset Method:
 Automatically active when the Outdoor Sensor is connected to the OR and C spade connects on the Fuel Smart
HydroStat.
 Outdoor Reset overrides Thermal Targeting Method.
 The Reset Ratio setting dictates the influence the outdoor temperature has on the boiler target temperature
during a central heat demand. The boiler target temperature increases by the Reset Ratio setting for every 1ºF
decrease in outdoor temperature. Inversely, the boiler target temperature decreases by the Reset Ratio setting
for every 1ºF increase in outdoor temperature.
 The Reset Ratio is set using the Economy Feature Dial. Use Table 7-5 to aid in setting the Reset Ratio for
your application.
o Example: if the outdoor design temperature is 0ºF (typical for the Northeast), and the design heating
water is 180ºF (typical for baseboard heating), then set Reset Ratio = 1.50.
 The display will toggle between boiler temperature (8 seconds) and outdoor temperature (2 seconds).
 To check the current target temperature, press the Test/Settings button in 4 short intervals.
 If the Outdoor Sensor becomes damaged or disconnected, the control will automatically revert back to the
Thermal Targeting Method. The display will no longer toggle outdoor temperature.
Table 7-5 Economy Feature Setting (for Outdoor Reset)
200 1.25 1.25 1.25 1.50 1.50 1.50 1.50 1.75 1.75 2.00 2.00 2.25 2.50 2.50 2.50 2.50 2.50 2.50
195 1.00 1.25 1.25 1.25 1.50 1.50 1.50 1.50 1.75 1.75 2.00 2.25 2.25 2.50 2.50 2.50 2.50 2.50
190 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.50 1.75 1.75 2.00 2.00 2.25 2.50 2.50 2.50 2.50 2.50
185 1.00 1.00 1.00 1.25 1.25 1.25 1.25 1.50 1.50 1.75 1.75 2.00 2.25 2.50 2.50 2.50 2.50 2.50
180 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.50 1.75 2.00 2.00 2.25 2.50 2.50 2.50 2.50
175 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.50 1.75 1.75 2.00 2.25 2.50 2.50 2.50 2.50
170 1.00 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.50 1.75 1.75 2.00 2.25 2.50 2.50 2.50
165 0.75 1.00 1.00 1.00 1.00 1.00 1.00 1.25 1.25 1.50 1.50 1.50 1.75 2.00 2.25 2.50 2.50 2.50
160 0.75 0.75 0.75 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.75 1.75 2.00 2.25 2.50 2.50
155 0.75 0.75 0.75 0.75 1.00 1.00 1.00 1.00 1.25 1.25 1.25 1.50 1.50 1.75 2.00 2.25 2.50 2.50
150 0.75 0.75 0.75 0.75 0.75 1.00 1.00 1.00 1.00 1.25 1.25 1.50 1.50 1.75 1.75 2.00 2.50 2.50
145 0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.00 1.00 1.00 1.25 1.25 1.50 1.50 1.75 2.00 2.25 2.50
140 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.00 1.00 1.00 1.25 1.25 1.50 1.50 1.75 2.00 2.50
-40 -35 -30
Outdoor Sensor - The outdoor sensor (p/n: 83604) is included in the burner kit, it must be
connected to the Fuel Smart HydroStat Control 3250 prior to setting up the control.
20
Reset Ratio Chart
-25 -20 -15 -10 -5
Outdoor Design Temperature
0 5 10 15 20
VS80-130
25 30 35 40 45