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Dear All,
I have installed many Comfort Systems over the past three years and all have worked without a hitch. I always use similar components in my setups so as to learn from each installation.
Recently I decided to install a unit for myself at home and guess what it didn\'t work!! The Comfort is the latest Ultra II. My problem is that the Cequera bell box I have installed is not sounding when I do a siren test. Actually to correct myself the unit did work with just one siren test then never again!. I also brought another Cequera bell box from work, installed this and the same happened.
Any ideas?
rgs
Brian
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On Ultra II, the bellbox is connected to SRN- and SRN+, also check the polarity
Some bellboxes require a lot of current - make sure that a battery is connected so that it can temporarliy supply extra current if required for the siren
Can you check the voltage between SRN- and SRN+ when the siren is turned on? It should be 12V or more. Please check this when the siren is not connected and then when it is connected
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Finally I have had the time to check this out. In fact there is nothing connected to SRN+. I am using the truth table (as I always do) for the Cequra Bellbox. Here is what I have on the Comfort manual (which normally on other comforts works just fine):
Comfort TR 12VF COM SRN- STR-
Cequra Tamper +ve Hold Off -ve Hold Off Siren Strobe
I have checked the voltage and found this to be 13.55v. Do you think I should move the wire from the 12VF to the SRN+?
rgs
Brian
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Dear Mr Chiu,
I have now tested this throughly and have concluded that my comfort is defective. I have once again tested the voltage on the SRN- and SRN+ and found this to be 0v when the siren is meant to be off and just 0.05v when the siren is meant to be on. (this I tested by using the siren test option from the keypad). I also tried to select the reverse siren option on configurator and even then the highest volatge registered was 0.05v.
I have contacted Cequra directly and advised them of how the LEDs were flashing on the bell box and they told me that normally this indicates a power problem. I am told that either the transformer or the Comfort itself is defective.
Just my luck! - but at least this happened to me and no one of my clients.
At this point I\'d like to ask about RMA procedure
rgs
Brian
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I will give you instructions by private message. Siren driver faults are very rare though
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Dear All,
I would like to tell you that I have finally solved this problem! It was caused by two problems. One was that I was using a faulty resistor inside my bellbox and two the Cequra bellbox I am using has a small plastic washer and cover used to cover the bolt which is used to secure the bell box\'s outside cover. This was not inserted corrected does not allowing the tamper switch to close correctly.
This issue has been solved. Mr Chiu many thanks for your help on this!
rgs
Brian
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JUst trying to pick up on Cequra bellboxes.....I have one fitted (a long time ago, over 8 years), and purchased a new one to have 2 on property.
I can\'t remember fitting resistor on bellbox previously( may be wrong)..Have you found them needed and was it across hold off +ve to siren and hold off+ve to strobe.
Additionally is it best to fit two bellboxes in series or in parallel (Chiu)
thanks
Campbell
Comfort 1
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Cambell
If you have trwo bellboxes, they should be connected in parallel so that the same voltage is applied across them. If you connect them in series, then each would see about 1/2 the 12V supplies from Ciomfort and they probably would not work
