Hi

I am new to grade 3 alarm systems only ever worked on domestic grade 2 systems.

Firstly in a commercial building is there a regulation requiring dual techs with anti masking or will just dual techs do?

When installing a texecom premier 48 panel is this ok for ARC monitering?

When wiring the DT7450 SENSORS. Which way is required.

If I make each dual tech and each door contact its own zone do I need to wire with 4 cores or 6?

the connectionS is the DT 7450 ARE T T C EOL NC NEG POS Where would I put the EOL resistors??

Any help would be much appreciated

Hi

I am new to grade 3 alarm systems only ever worked on domestic grade 2 systems.

Firstly in a commercial building is there a regulation requiring dual techs with anti masking or will just dual techs do?

When installing a texecom premier 48 panel is this ok for ARC monitering?

When wiring the DT7450 SENSORS. Which way is required.

If I make each dual tech and each door contact its own zone do I need to wire with 4 cores or 6?

the connectionS is the DT 7450 ARE T T C EOL NC NEG POS Where would I put the EOL resistors??

Any help would be much appreciated

Which signalling option are you planning?

Edited September 21, 200817 yr by anguscanplay

DT7450 i think is not a grade 3 detector

Which signalling option are you planning?

a redcare with an external STU for fire aswell as intruder.

Im setting the system up on the floor as a trial at home at the moment. Im an apprentice al engineer, year 2 but never done grade 3 before. Working for a new company dont want to look like I dont know what I am doing if they send me out alone.

Im an apprentice al engineer, year 2 but never done grade 3 before. Working for a new company dont want to look like I dont know what I am doing if they send me out alone.

right - well fire shouldnt be connected to the alarm stu`s anymore, the sensors (all of them) need mask detection but you only need 4 cores per device.

you need more training before you even attempt to install this kit

Edited September 21, 200817 yr by anguscanplay

right - well fire shouldnt be connected to the alarm stu`s anymore, the sensors (all of them) need mask detection but you only need 4 cores per device.

you need more training before you even attempt to install this kit

Thats why im asking advice

Are the connectrions in the DT7450 THE SAME AS IN THE DT7550??

Isnt there a stu that could do this?

Does intruder alarm and fire alarm now have to be on independant STUS??

Thats why im asking advice

Are the connectrions in the DT7450 THE SAME AS IN THE DT7550??

Isnt there a stu that could do this?

well obviously not - there`s a mask relay for a start.

Like I said this is something you NEED to go through with your employer if you want to know THAT level of detail.

SO DOES THE THE DT7550 NEED 6 CORES?

right - well fire shouldnt be connected to the alarm stu`s anymore, the sensors (all of them) need mask detection but you only need 4 cores per device.

you need more training before you even attempt to install this kit

SO DOES THE THE DT7550 NEED 6 CORES?

lifes too short to be training other firms engineers - i`ll leave it for now, go cut my lawns, walk the dog or something

.

Edited September 21, 200817 yr by anguscanplay

SO DOES THE THE DT7550 NEED 6 CORES?

No, you can just fit an extra resistor across the Mask/Fault terminals in the detector and program the zone with the mask attribute (not familiar with the Premier panels to be honest)

You really need to have a word with your employer, you should'nt be expected to install a system like this without any training. You say you don't want to look like you don't know what you are doing, but would it not be worse if you got to site and fitted it all wrong and they have to send someone out to put it right?