Door Closers Access Control Tutorial

Crucial ******** ****

******* ******* * *********** access *******: ***** **** be ****** ****** **** can ** ******.

****** ****** *** ** the ***** ** ******* every **** ****** ****, there ** ** ********* it ** ****** ****** these ******* *** ****.  Since ***** ****** ******* requires ******* ************ ****** out ** ***** **** do *** ******, ** open **** ****** ****** no ******** ** *** people ** ****** ******.

******: ******* *** ******** ** shut ***** ****** ***** user ** ********* *** automatically **** *****, ********** the **** ** ** open door ******** ****** **** access **** ** ****.

Illegal *** ** ********* *****

* ****** ***** ** classroom ********* ***** ******** for ***** * ***** sleeve **** **** **** the ******'* **** **** closed, ********** ******* ******* of *** **** **** the **** ** *****. These ******* **** ** installed **** *** **** closed, *** **** **** protect ******** ** ******** from ******* ** ******** when ******:

*******, ***** ******* *** ***** illegal ******* **** **** trapping ********* ****** ********** doors **** **** ***** be *******. **** ***** authorities **** ******* ***** that ******* ********* ****** is * ******, *********** action.

*** ***** **** *** most ** ***** ***** regulations ** ************* ******** **** (2018) ****.*.* **** ******:

"****** ** ************ ********* by **** ******* ****** doors ***** ** ******* openable **** *** ****** side ******* *** *** of * *** ** special ********* ** ******."

****** ****: *** ***** of ******** **** ******** must **** ********* ******, and ****** ********* ***** are ***** *** ********** ***** as **** ** ******* them ****. ** ******* closer ********* ***** ******* in ********* ****** **** ******* ****.

Other ******* *** ********** **** *******

*******, ******** ** *** the **** ******* ******* *******. They *** ***** ******** into * ******** *** other *******, *********:

• **** **********: ******* *** ******** balanced *** ********** ************ cost ******** ******* ***** sealed. ** ***** ************* like************* ****** **** ***** heated/cooled ** ** ******** warehouse *****, **** ******* are **** ** **** the ***** ********.
• ***** *********: ********, * ****** door ****** **** ***** isolation. ******* **** **** quiet ***** ***** ** keeping ***** ****.
• **** **********: **** ** **** emphasis ** '******** ********' of ***** ** *******************, ******* **************** ** * **** factor ** ******** *** firewall ** ****'****. *** ******** **** Door ******* ************* **** open********* ****** ** *********, ********* triggered ** *** **** alarm.

Hydraulic ******* *** **** *******

**** ****** ******* *** a '*********' (*** ******) box **** *** ******* mounted ** *** ******* side ** *** ****. In ***** ** ******* occupant ******, ******* **** 'stages' ***** ********* ****** and ******* ***** ** the **** ** ****.

** *** *** *****, a ********* ****** ******** the ***** ********* ****** of ******* ** *** fluid ********:

*** ********** ** ***** positions *** ***** *** explained ** *** ********* section.

Standard ******** *********

*** ***** ******* ****** are ***** ** *** top-view **** ***** *****:

1. **** *****:**** ***** ** ******* to ** '****-******' **** allows *** **** ** open *****, **** ****** 90 *******, ** **** wide ***** *** **** through. *** **** ***** phase ********* ****** *** closer ** * ********** disadvantage *** ******** **** directional ***** ** * leverage ************, ******* ******** the **** ** *** closer.
2. *****:**** ** *** '*******' phase ** *** ******, that ****** *** **** closed. * ******* ** closers******** ****, ****** ********* like **** ******* / ***** Direction *** **** ***** **** account.
3. *****:*** ****, **** ****** stage *** ** *** most *********: '********' ***** the ***** ****** **** and ***** *** ******** much **** ****** *** rigid ** *** ************ door ***** *** ***************. ******* ** * door ******** **** *** bouncing *** *** *****, the ***** ***** ** a ********** *****.

**** ** *** '*****' phase, ***** ****** ** adjusted ** *********** *** delayed ****** ** ****** times ** ******, *** while *** ******* ********* of * ***** *** take ** *******, *** 'latch' ***** ***** *** account *** * - * ******* despite **** ****** * few ******.

Timing ********** ******** *** ****** *******

*********** *** ****** *******, modern ********** ******* ********* have ******** ****** **** tweak ****** ** **** travel **** **** *** tightened ** ********. *** exact ******** *** ****** of ********** ****** ****, but **** ********* *** found ** *** ********* of *** **** *** can ** ******** **** small standard hex **** ** ***** ********:

* ****** ** ******** adjusted **** ***** ** no ******** *** ******** positive ******** ** *** companion *****. ******* ******** ten ** ******* ******* adjusting * ****** ***** three ** **** ***** of *** ** ******, but ** *** ** critical *** ******* *** door ** **** **** electronic ****** ******* ********.

Other ******** ****** *****

***** ********* ******* *** the **** ******, ***** are **** ********* ***** used ** * ****** of ************:

• *****************: **** ******** **** Door ******* (******* **** keep ***** ****), *******-********** devices *** ***** **** that ****************** **** **** ******* in ** *********** ****.
• **** *********/*********: ***** ************* ****** and ********** ******, ******* that *** ** ****** inside *****, ******, ** hinges/pivots *** ***** ****. Unlike ***** *****, ***** are ***** ******* *** installed ** *** ******* and *** *** ** field *********** ***************************.
• **********: ** ********* ** contaminate-sensitive ************, ********* ******* may *** ** *********. While ******** ** ********** openings, ***-******* ******* (***** with ************ ********** *****) are **** ** ********* the **** ** ***-***** units.

Sizes ***** ** ****** **** ****** *** **** *****

**** ****** **** **** not ******* ********** *** door *******, ******* ********* worn ** ****** **** may ** ****** ******. Additionally, ********** *** ******* on ***** ********** ***** to ** **** **** can ******* ** ****** in ********** *****.

*** ****** ********** ******** replacement ******** *****, ****** the ******* **** ** closer *** *** **** the **** ********* ** is ******** ******* *** right *********** *** ******** new *******. *** ***** basic ****** **** ******* are:

*** ***** **** ** use ** ********* ******* by **** ***** *** ** *** ********* appearance ** *** *******. In *******, ******* ** Top **** ***** *** used ****** *** *** their **** ******* *** considered *********.  ** **** case, ******** *** ***** are **** ** **** as *** **** ***** is *** **** **".

*** ******** ** *** closer ** ********** ** standard '****', **** ****** 'spring ****' ******* **** applying ** ***-******, ********** hydraulic *****. ** *******, the ******* *** '****' number, *** ******** *** physically ****** *** **** is **** ******* **** the *******:

***** ***** ********* *** their ***** *** ******, Parallel *** ******* *** often *** ************ **** to ***** ***** ***** than **", *** ***** action ***** **** **** mechanical ******** **** ** used.

Closer **** 

** **** *****, *******/*** Jamb ********** ********* ******* should ** ********* *** access *******, *** ***** types *** *** ********, too *********** ********, ** too ********** ** ** retrofitted ** ******** *****.

*** **** *** **** be ********* ** *** most ********, *** ********** them *** ** **** with ***** *****, *** units *** ** ******* for *** ******** *******, and *** **** ****** door ****** ***** #* or #* **** *****, pricing  **** **** $*** - $*** **** ******** distributors.  

*** **** *****, ******* sized #* - #*, the **** ** ~$***. For **** **** ** atypically ***** ********, ***** can ** ****** ~$*,*** or **** *** ********* training ** ******* *** adjust *** ** ********.

**** **********, **** ******, hinge ****, *** ******** uses *** **** *** **** a *** **** ** selecting *** ***** ****. Most ****** ************* ******* a ************* ***** ** help **** ** ** the *********** ****.

Quiz ********

**** *** *** ************ ******* *** ****** Control **** ***.

[******: **** ******** *** originally ********* ** **** and ************* ******* ** 2019]