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Nortek EC Series Installation Manual

Nortek EC Series
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13
NO
COM
NC
FAIL SECURE WIRING WITH A DC DOOR STRIKE
DOOR LOCK RELAY
ENERGIZES
WHEN
ACCESS IS GRANTED
POWER SUPPLY DC POWERED DOOR STRIKE
DIODE 1N4933
OR EQUIVALENT
DOOR UNLOCKS
WHEN STRIKE
IS ENERGIZED
DC POWER FROM
STAND-ALONE
SUPPLY OR PDM
WITHOUT CONTROLLER POWER DOOR STRIKE IS LOCKED
DOOR LOCK RELAY TERMINALS
NO
COM
NC
FAIL SAFE WIRING WITH A DC DOOR STRIKE
DOOR LOCK RELAY
DE-ENERGIZES WHEN
ACCESS IS GRANTED
POWER SUPPLY DC POWEREDDOOR STRIKE
DIODE 1N4933
OR EQUIVALENT
DOOR UNLOCKS
WHEN STRIKE
IS ENERGIZED
DC POWER FROM
STAND-ALONE
SUPPLY OR PDM
WITHOUT CONTROLLER POWER DOOR STRIKE IS UNLOCKED
DOOR LOCK RELAY TERMINALS
NO
COM
NC
FAIL SECURE WIRING WITH AN AC DOOR STRIKE
DOOR LOCK RELAY
ENERGIZES WHEN
ACCESS IS GRANTED
POWER SUPPLY AC POWERED DOOR STRIKE
MOV SNR-D56K2
OR EQUIVALENT
DOOR UNLOCKS
WHEN STRIKE
IS ENERGIZED
AC POWER FROM
STAND-ALONE
SUPPLY
WITHOUT CONTROLLER POWER DOOR STRIKE IS LOCKED
DOOR LOCK RELAY TERMINAL
TRANSORB SA48C -
INSTALL ON ALL LOCKS
TRANSORB SA48C -
INSTALL ON ALL LOCKS
TRANSORB SA48C -
INSTALL ON ALL LOCKS
Door Strike
1. Install a low voltage electric door strike as a locking device for the door or pedestrian gate.
2. Install the power supply or transformer for the locking device. DO NOT POWER THE UNIT FROM THIS POWER SUPPLY.
3. Connect one wire from the power supply to one wire from the locking device.
4. Route two wires between the locking device and the unit. Connect one wire to the remaining wire of the locking device. Connect the other wire
to the remaining wire of the power supply.
5. Install a protection diode (for DC door strikes) or MOV (for AC door strikes) across the strike to protect the door relay contacts.
6. Connect the wires to the unit’s DOOR LOCK RELAY COM & NO terminals for fail secure operation or DOOR LOCK RELAY COM & NC
terminals for fail safe operation.

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Nortek EC Series Specifications

General IconGeneral
BrandNortek
ModelEC Series
CategoryIntercom System
LanguageEnglish

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