Superseded

Superseder Products

EWC® Ultra-Zone™ EWT-3900 Thermostat, Wireless, Programmable Thermostat, 30 to 99 deg F Control, 1 to 3 deg F Differential, 7 or 5-2 Days Programs per Week

BrandEWC® Controls
MFR Part NoEWT-3900
TSCO Part Number413139

Features

  • 40 to 60 VA 19 to 30 VAC 60 Hz NEC class 2 transformer
  • 260 mA at 24 VAC, 1 A max load per terminal
  • Up to 300 ft (91 m) wireless range concrete and steel will reduce range wireless
  • 18 ga solid copper wire, do not use stranded or shielded cable wiring
  • 30 to 99 deg F operating temperature, 14 to 140 deg F storage temperature, 0 to 90% RH non-condensing humidity
  • Can be set for auto or manual changeover
  • The temperature differential can be adjusted from 1 to 3 deg F to adjust system cycling response and default setting is 2 deg F
  • Capable of locking keypad for unauthorized changes
  • Alerts you to change the filter after 400 hr of system run time
  • NCM-300, BMPlus3000, or UZC4 compatible ultra zone panels
  • 3.75 in W x 0.99 in d x 5.32 in H transmitter, 3.85 in W x 1.788 in d x 4.55 in H receiver