| Input Current | 0.1 A + B1 + C1 + ZC |
| Input Voltage | 120 Vac – 60 Hz |
| MAX Input Current | 20A (15A with optional power switch) |
| Relative Humidity | 5 to 85% RH, non-condensing and non-crystallizing |
| Storage Temperature | -40 to +150°F (-40 to +65°C) |
| Operating Temperature | -4 to +150°F (-20 to +65°C) |
| Low Limit Setting Range | 100 to 205°F (37 to 96°C) |
| High Limit Setting Range | 100 to 220°F (37 to 104°C) |
| Burner Current Rating (B1) | 1.25 A at 24 Vac; 30 VA total load |
| Low Limit Differential Range | 10 to 45°F (5 to 25°C) |
| High Limit Differential Range | 5 to 45°F (2 to 25°C) |
| Circulator Current Rating (C1) | 7.4 A at 120 Vac FLA; 44.4 A inrush LRA |
| Zone Control Current Rating (ZC) | 7.4 A at 120 Vac FLA; 44.4 A inrush LRA |
| 24 Vac Thermostat Anticipator Current | 0.1 Amp |
