Re: Garage Door Opener keypad recommendations

[tourman <robercampbell@xxxxxxxxx>]

On Nov 17, 6:21=A0am, JoeRaisin <joeraisin2...@xxxxxxxxx> wrote:
> On 11/16/2010 7:57 PM, Christopher Glaeser wrote:
>
>
>
> >> One of my trades is (was) overhead door installation.
>
> > Fair enough. I called the company that installed the garage doors in ou=
r
> > neighborhood. They are among the major garage door compainies in
> > northern california. I told him about my experience with a broken
> > spring, and asked him if the motor should be able to open the door with
> > a broken spring. He said no way. He went on to explain that some
> > contractors use 1/3 HP for the heavy doublewides because the spring doe=
s
> > all the heavy lifting, but they don't recommend the smaller motors for
> > the heavy doors. However, he said that even the 3/4 HP motors can't ope=
n
> > a heavy doublewide with a broken spring.
>
> >> Now in addition to a power failure, a battery failure, and a stormy
> >> night when
> >> you come home.... You're going to throw in a broken spring at that exa=
ct
> >> moment.? Talk about entropy. Hell, if all that goes wrong then that's
> >> some
> >> kind of mojo warning you not to go in.
>
> > I'm not sure you understand the scenario I'm describing. I'm talking
> > about a single point of failure. I know many people (myself included)
> > who do not carry any house keys. The only way for them to gain entry to
> > their house (without a break in), is through the garage door. If the
> > garage spring breaks while they are outside the house, and they have a
> > heavy garage door, then gaining entry to the house may present a challe=
nge.
>
> > Best,
> > Christopher
>
> Are you saying that you leave the door from the garage to the house
> unlocked?

RHC: Good question ! This is a very poor idea and an ongoing source of
false alarms. If the door doesn't close properly and isn't locked,
high winds outside can cause enough of a vacuum inside the garage to
pull or push the door open just enough to trigger the zone (especially
with magnetic contacts versus roller balls behind the door) . This is
a common cause of false alarms that I routinely warn my clients about.