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Need a couple of Nest Hello Installation details
This thread has 6 replies. Displaying all posts.
Post 1 made on Thursday April 26, 2018 at 18:34
Ernie Gilman
Yes, That Ernie!
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I'm installing a couple of Nest Hellos for a client. The FAQs that I see neatly answer just about everything except for these questions:

*I'm installing it. Do I have to get the client's phone and use it for setup for him to be able to use its functions?

*Is it a problem to use one power transformer to run two Hellos?

That ties into the other question:
*The instructions say the Hello is meant to be installed where there's already a chime. They go on to say that's because the transformer powers the Hello. (This client's house has neither chime nor transformer, but I just bought a chime transformer to power the unit.) Is it necessary to also get an actual chime to be part of the circuitry? Or might some load resistor be needed?

Thanks for any help.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 2 made on Thursday April 26, 2018 at 18:52
Daniel Tonks
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Most doorbell transformers are like 15VA which isn’t really enough for even one unit with a functional chime (not sure about standalone). What’s the capacity of the one you have? Note that 14.5V (38-40VA) transformers sold for security systems are a viable option.
OP | Post 3 made on Friday April 27, 2018 at 00:30
Ernie Gilman
Yes, That Ernie!
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I bought two transformers just in case and I'm using one for each Hello.

I had some questions and spent an eternity chatting via cell phone with some people from semi-tech services.

Puzzling: They don't recommend that I set up the Hello with my cell phone and then transfer control to the client's phone. Of course, they don't find it at all difficult for a customer to buy a new phone and change from one kind of phone to another. This encourages DIY installation and discourages pro installation.

They recommend that I go out and buy a chime for this house that has not chime, wants no chime, and is too large for a chime to be heard in more than a quarter of it... and that's if I spend the client's money putting it in a central location. In the conversation, the first "tech" I spoke with said the chime is only there to complete the circuit. So I said, oh, then I can just twist the wires together. He said yes, then a minute later said they don't recommend it. They basically don't understand the device.

When I got his lead tech on the line, she said pretty much the same thing, saying a chime MUST be used. They don't understand the device but a chime won't blow it up.

I forgot to ask how many people could answer the doorbell. In this particular home, at least five people should be able to answer the door. Is that possible?
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 4 made on Friday April 27, 2018 at 08:57
bricor
Advanced Member
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It just needs 16-24 volts.
A chime or no chime should have no effect on the operation.
There is even an option in the app to have it not ring the chime.
You have to create an account which is why it's easier to just use clients phone. Or use yours and whatever credentials they want to set up the account then they can just login from their phone.
Doorbell rings in the app for whoever is logged in with the app. I haven't got up to 5 but 3 works. I haven't tried 2 people anwersing and talking at the same time though.
OP | Post 5 made on Saturday April 28, 2018 at 22:28
Ernie Gilman
Yes, That Ernie!
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On April 27, 2018 at 08:57, bricor said...
It just needs 16-24 volts.
A chime or no chime should have no effect on the operation.

The Tech Team has no idea that this is the case.
There is even an option in the app to have it not ring the chime.

That's what made me think no chime was necessary, but the drones on the phones insist that having a chime in the circuit is "recommended" and warranties may be voided if anything else is done.

In short, they state on the box that professional installation is preferred, but they only have amateur answers, answers that state what they prefer and show zero understanding of how their product actually works.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 6 made on Sunday April 29, 2018 at 00:00
tomciara
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On April 26, 2018 at 18:52, Daniel Tonks said...
Most doorbell transformers are like 15VA which isn’t really enough for even one unit with a functional chime (not sure about standalone). What’s the capacity of the one you have? Note that 14.5V (38-40VA) transformers sold for security systems are a viable option.

This is worth noting. I have not done this brand, but I did set up one Ring for a client, and his doorbell transformer gave me 16 V open circuit, but did not have enough current to keep the doorbell charged.
There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions.
OP | Post 7 made on Sunday April 29, 2018 at 01:03
Ernie Gilman
Yes, That Ernie!
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Not enough current to keep the doorbell charged? That's an odd circumstance. If the doorbell is drawing as much current as the transformer can supply, this makes sense, but I can't imagine that's the way the doorbell should be working!

Instead, just a small amount of current should be charging the batteries. They can then supply a lot of current for the short amount of time that the doorbell is active.

Or does this doorbell stream video, or something, that uses a lot of current?
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw


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