Natural Ventilation Control
Phason
2
2013-08-26
Features
Automatic temperature-based control,
with extended temperature range
-13 to 125°F (-25 to 51.7°C)
Programmable On and Off durations for
the open and close relays
1 to 900 seconds (up to 15 minutes)
Programmable Idle band
1.0 to 10.0°F (0.6 to 5.5°C)
Programmable heater Hysteresis
0.3 to 5.0°F (0.2 to 2.8°C)
Programmable High and Low temperature
alarms
Two curtain relays (one open, one close)
Heater control relay
Alarm relay (for external alarm system)
Four-button keypad
Four-character LED display
Programming and status LEDs
Manual override/test mode
Power-failure settings protection
Six-foot temperature probe, extendable to
500 feet
Rain Sensor (optional)
Rugged enclosure (corrosion resistant,
water resistant, and fire retardant)
cCSAus approval
Two-year limited warranty
Electrical ratings
Input power
85 to 264 VAC, 50/60 Hz
Open/close/heat relays
15 A at 120/230 VAC, resistive load
1/2HP at 120 VAC, 1 HP at 230 VAC
Alarm relay
0.4 A at 125 VAC; 2 A at 30 VDC, resistive load
0.2 A at 125 VAC; 1 A at 30 VDC, inductive load
If you are connecting any equipment that exceeds the ratings of the relays, you must
install power contactors. For more information, read
Power contactors
on page 22.
