Pluto said:
[SIZE=11pt]Thanks for your responses. After further consideration & reading I am rethinking how I should proceed for the smoke/ fire / co on this project. Let me recap:[/SIZE]
[SIZE=11pt]Existing house wired with 5 separate 8 fire wire circuits to the alarm panel. I am in the process of upgrading from a 17 year old controller to the Elk M1 gold. [/SIZE]
[SIZE=11pt]I can daisy chain all 5 into one circuit by connecting at the panel & at the end of the existing 5 circuits to create one instead of 5 zones. [/SIZE]
[SIZE=11pt]I have computed the load to be about 1.3 amps with the current bits using the Elk calculator. This is beyond the capacity of the ELK M1. So I will use an Altronix auxiliary power supply AL600ACMCB to power the smokes & motion sensors. There are 8 power out connections in this Altronix. The motion will be on another separate power out from the Altronix. [/SIZE]
[SIZE=11pt]I plan to replace my existing Napco FW4 smoke only ( no sounders) with a combination of System Sensor COSMO 4W (outside bedrooms), and several System Sensor 4WTA-B in bedrooms - connected to COSMOD 4W module. If it could work together- would like to use 3 thermal only units -any recommendations? Two of the existing heat sensors I have are on separate home runs to the panel, and could be set as an additional zone if they would play well with the other sensors. [/SIZE]
[SIZE=11pt]As per your suggestion - [/SIZE]
[SIZE=11pt]Use M1-SAUX to Elk 912 relay & use NO out from the 912 to the Altronix AL600ACMCB using the NO. This will allow the Elk to disconnect power to Altronix > COSMOD module to reset the Sensors following an alarm. The COSMOD will allow all sensors to sound when a Smoke or Co Alarm is triggered. [/SIZE]
[SIZE=11pt]Use Elor-1 & resistor on the last sensor for supervision. Because my loop for the sensors returns to the panel I plan to install the ELOR-1 & 3.9k resistor there as it will be convenient and function the same as on the actual last sensor in the chain. [/SIZE]
[SIZE=11pt] If I understand the COSMOD 4W can transmit a 3 tone temporal for Smoke & 4 tone [/SIZE]
[SIZE=11pt] for CO and will sound at all the sensors. This seems like a worthwhile upgrade.[/SIZE]
[SIZE=11pt]If I understand correctly the COSMOD- SMOKE OUT - can connect to any zone input -like #15. The COSMOD - Smoke Trigger out - should (“ bell out “ on COSMOD) to POWER OUT on the M1 to #3 or #7 with rules -”when fire alarm turns on > then turn output 3 on”. Further - “whenever fire alarm turns off > “ then turn output 3 off ”. [/SIZE]
[SIZE=11pt]The COSMOD 4W -CO OUT would connect to another zone like #14. The CO trigger ( not clear here ) to Elk M1 POWER OUT #7 ( or another) also with rule like[/SIZE]
[SIZE=11pt]In 6. Above. [/SIZE]
[SIZE=11pt]So the the configuration : Elk M1 SAUX > Elk 912 > Altronix power supply > COSMOD 4W > System Sensors Cosmo 4W & 4WTA-B.[/SIZE]
[SIZE=11pt]A few questions : Is the above correct? [/SIZE]
[SIZE=11pt]Will the temporal signals work for the Sensors with this configuration. Have I missed anything with this configuration?[/SIZE]
[SIZE=11pt] Would you suggest any changes? It seems this would allow reset, trigger for the Elk , and the sounding sensors to work in unison for smoke/heat & smoke/co. [/SIZE]
[SIZE=11pt] [/SIZE]
The System Sensor COSMO detectors are good stuff. The COSMO-2W and -4W have some differences that you may or may not care about. Whichever type you choose, the both types of COSMODxW module connect to the panel as if you have 4-wire smoke detectors.
In general, I would choose the 2W over the 4W. The wiring is a bit simpler: you'll have fewer wiring connection points (3 vs 5 per detector) that can become potential points of failure; no EOLR is required - one less thing to go wrong. The COSMOD2W provides a maintenance required signal that can be connected to an additional zone input to provide a heads up for problems.
If you want to have heat detectors, I would put them on their own zone. With simple 4-wire smoke detectors, you can put a heat detector on the same loop. But I don't think you can do that with the COSMOD4W since I believe it uses special signalling between the COSMOD and the detector to indicate fire vs CO conditions.
Usually, you don't see heat detectors in the same locations as smoke detectors. Heat detectors are better in kitchens, utility/furnace rooms, garages, etc, where smoke detectors are prone to false alarms.
Comments on your numbered items:
5. If I follow what you are saying correctly, I think you've got it right. Yes, the COSMOD module will take care of the temporal signalling.
6. I'm having more trouble following what you are describing here. The smoke zone outputs of the COSMOD can connect to any zone input on the M1. The smoke trigger input on the COSMOD is used to get all the smokes to sound in a synchronized fashion. Similarly, the CO trigger input is used to cause a temporal 4 sounding across all the smokes. To trigger these, use M1 output under the control of rules. You should be ok using a voltage output (e.g Output7) for this. Otherwise, use an Elk 912 relay connected to a M1 voltage output.
7. The CO output on the COSMOD connects to any other zone. Similar to the smoke trigger, you would use another voltage output to the CO trigger input. And you would have another set of rules to activate the output when the M1 sounds a CO Alarm.
If you use a M1 voltage output to drive the trigger inputs on the COSMOD and the COSMOD is powered by the Altronix, you will need to have the Altronix GND and M1 NEG terminals connected together.
If you drive any relays from the M1, don't forget to include their coil load current to your M1power calcs.
You mentioned that you have a AL600ULACMCB power supply. The ACM series has a bunch of relays meant for use with access control systems that you won't need. But you can wire it up as a basic unswitched, multiple output power supply. Just takes some studying of the directions for a while.
