Troubleshooting Trine electrical strikes in .NET

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Troubleshooting Trine electrical strikes
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No matter how carefully units are tested and retested at the factory, problems can still arise. These troubleshooting procedures concern the unit after installation, and they can relate to any electrical strike unit in use.
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After installation, the strike hums but does not operate properly when the power is applied. Probable cause: ac voltage has been supplied but the rectifier has not
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been installed between the transformer and the strike. Correction: Install the rectifier per the wiring diagram in Fig. 19.30.
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After installation, the strike does not operate even if the power is left on for 1 minute (maximum time) and the strike is noticeably warm. Probable cause: (1) Static load-
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ing against the door is excessive due to weatherstripping, a warped door, wind loading on the door, or improper jamb preparation.
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Electrical Access and Exit Control Systems
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Corrections: (1a) Adjust the strike bolt relationship so that some slight gap exists in the locked position. (1b) Balance air conditioning pressures on opposite sides of the door. Probable cause: (2) Insufficient voltage is reaching the strike due to an inadequate supply wire size. Corrections: (2) Provide sufficient sized service wire (Fig. 19.29).
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The keeper moves to fully open on power application but does not return to the locked position when the door closes. Probable cause: If the deadbolt is extend-
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ed but does not pull the keeper to the fully locked position on door closure, the return spring may need adjusting. Correction: Deform the return spring slightly by forcing it toward the keeper.
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The keeper binds in the strike case on both opening and closing. Probable cause: The cutout in the jamb is too narrow and it is forcing the strike case walls inward toward the keeper. Correction: Increase the vertical dimension until the keeper operates freely.
Figure 19.27 Circuitry for multiple wiring of door openers.
(Trine Consumer Products Division, Square D Company)
Figure 19.28 Electrical ratings for intermittent use and constant operation for solenoid coil door openers. (Trine Consumer Products Division, Square D Company)
Nineteen
Distance in feet from power source for one strike
300 16 200 150 10 100 12 16 18 12 Vdc 24 Vdc Standard 48 Vdc 24 Vdc Fail safe 12 Vdc 16 18 14 18 18
Electrical strike voltage (fail secure)
Figure 19.29 Electrical strike voltage (fail-secure mode of operation). (Trine Consumer Products Division, Square D Company)
Figure 19.30 Circuitry installation of a rectifier to alleviate a strike hum. (Trine
Consumer Products Division, Square D Company)
Electric door openers for deadbolts
Electric door openers are also available and work extremely well for deadbolts. They can be used with just about any manufacturer s lockset. They include the following types:
Mortise locks with deadbolt. Mortise locks with deadlatch and guarded latch. Individual deadbolt lock. Panic exit devices. Maximum security deadbolts (3 4-inch throw). Release up to 1-inch throw deadbolts. With optional adapters, they may be used with cylindrical locks, alarm locks, or with Detex bolts.
Electrical Access and Exit Control Systems
These units will also allow the strike operation of mortise locks with both latchbolt and deadbolt release by the action of a single keeper. The keeper is held open after the door is opened if the deadbolt was in an extended position at the time of the door opening. The keeper automatically returns to the locked condition when the deadbolt reenters the strike. The door may also be closed with deadbolts extended. In strikes with options H, J, and K (Fig. 19.31), the keeper is forced open by the extending latchbolt and springs closed to the locked position to accommodate the returning latchbolt. Other options are also shown in Fig. 19.31. Figure 19.32 illustrates two Trine unit model (015 and 016) specifications. Along with the basic unit for installation, a heavy-duty transformer (Fig. 19.33) is necessary to convert the primary voltage to the operating voltage. Electrified Mortise Locks The electrified mortise lock provides many additional installation sales and servicing possibilities, especially when access security controls for your customer are concerned. The electrified mortise lock (Fig. 19.34) is another excellent, durable product that has minimal installation procedures yet offers long life and reliability to your customer. This lock unit has the standard rugged lock case construction of stainless steel, plus a normal mortise strike. The inside knob is always free, while the outside knob is rigid except when the 24-Vdc internal solenoid is energized, which releases the outside knob and allows the latchbolt to retract. Like any other standard mortise lock, it is reversible, allowing for different hands.
G lock adapter kit Dead locking lever Option G Spring clip with two mounting screws attaches to inside of strike case at either end. Used to depress dead locking lever of lock. Spring clip Dead locking lever kit Option K Adopter plate with two mounting screws and reverse wound bias spring. Fills in strike opening to ensure depression of auxiliary dead locking lever. Keeper is spring biased to locked position. Dead bolt barrier kit Option H Adapter plate with four mounting screws and reverse wound bias spring. Provides hotel lock-out function. Latch bolt is released but dead bolt is not. Keeper is spring biased to locked position. Note: lock set and handing must be specified Cylindrical lock kit Option J Adopter plate with four mounting screws and reverse wound bias spring closes down strike opening so that only latch bolt is accommodated. Keeper spring is biased to locked position
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