Ease of installation and setup - Simple instructions
Application versatility & ease of adjustment - Push or pull side mounting units available
Operates as mechanical surface closer during close cycles or when door is opened manually or if power is turned off - Quiet operation, acceptable for fire-rated doors, spring force provides the feel of a normal manual door closer, door can be opened manually if desired
Power Size: Multi-Sized Door Closer Adjustable through the power range of sizes 3 through 6.
Separate and independent, latch, sweep and backcheck intensity valves
Sweep Speed: Allows adjustment of door speed from the door's full open position down to approximately 10from the closed position.
Latch Speed: Allows adjustment of door speed from approximately 10down to the door?s fully closed position.
Backcheck: Provides control of the door in the opening cycle, beginning at approximately 75of door opening. It slows/cushions the door opening, when the door is forcibly opened beyond its pre-adjusted opening speed limits.
Unit Activation Options - Wall switches, Motion sensor, Radio frequency device
End-User On/Off Switch
Hold Open options - 0-30 seconds (5 seconds minimum required for ADA and ANSI A156.19)
Obstruction Detection - Motor stops if door is obstructed during an opening, door closes under manual spring force.
"Push and Close" Allows the operator to skip the hold open time when it is not necessary or required Adjustable door sensitivity
Overload Safety Shut-Off After two minutes of receiving a door activation signal, the inverter will time out and close the door Prevents motor/inverter damage
Motor Start Delay for Locking Hardware 0-5 second delay to allow locking hardware to release first
2-year warranty (refer to current Nortonprice book for terms & conditions)
Model: Norton, 5710, 5730, 5740, 5710-RF1, 5730-RF1, 5740-RF1, 689, Aluminum