MKDelboy

Hi Sixwheeledbeast, You were spot on about the wireless connectivity not being an issue. The installing company did a great job. The original wiring was sub standard and frigged with a junction box, above the ceiling over the panel location, in order to use two single six cores to connect multiple sensors down to the panel. Ended up with half wired and half wireless in a Pyronix hybrid system. Lots of stress but very pleased with the end result. Thank you again.

Hi Sixwheeledbeast, Many thanks for the advice. I am more comfortable now I can forget the Scantronic option. I do not intend to try a DIY installation. I do intend to have the cabling in place myself. I took your advice that there is no such thing as cannot. Rather than trying to use the original cables for the three daisy chained sensors, I looked at covering two of the rooms from alternative accessable points. By coming from the loft I can cut through the first floor in cuboards to lay two new sensor positons, leaving just one of the three sensors on the original 6 core. The issue with my semi engineering brickwork was not how to break through them, that's already done. The issue is they seem to be Wi-Fi unfriendly. Sky mesh was a disaster for me. I feel more comfortable now that I can install a wired system with options to Wi-Fi extend if the need arises. Thank you once again.

Hi Sixwheeledbeast, Thank you. I bought the 9448 shortly after Mafeking was relieved. Shame about the Telephone cable but may be able to use it to pull through new alarm cable. Wireless is an issue when your home is built in semi-engineering brick. High metal content is not good for Wi-Fi. L shaped house with sensors in other section to the control panel. Cutting through Karndean flooring to reach existing sensors takes the task outside of our pension scope. Trying to drill through engineering brick is a challenge and there is a 2 metre dead zone between house sections. The panel will be upgraded but would prefer not to use a 2 wire system. Scantronic 2 wire i-on 10 or Pyronix EURO76 seem to be front runners. Trouble is every supplier I contact has there own favourites and trashes other brands. Tried Which for guidance but they only favour wireless systems. Definitely do not want two detectors on one zone. Hence my question about using one + and - to drive two sensors on different zones. Probably seems a daft question if the + and - cables need to be involved in an activation situation? Many thank, Delboy

Hi, I need some advice please in order to select which product to favour and which installer to approach. I have had a scantronic 9448 for the last 30 years. Worked fine, give or take some party balloons and large spiders giving false alarms. My service company and I have just parted company because they sent an engineer for the annual service who was not trained to service Scantronics. The result was that he left me with a system that went into alarm if set, this after he factory defaulted the unit from the box. I managed to get the system working again by programming zone 3 into the E/E group. But the unit will not accept any further program changes. So now my wife and I have 10 seconds the get out of and back into the house. THE ADVICE PLEASE. I cannot find a local Scantronic maintainer so will need to replace the system, I do not want and cannot use a wireless system due to my house construction. The existing wiring is 6 cores to three of my sensors but the other three used two cores each and were daisy chained. Running new cables to each sensor is not an option. I have a dissused telephone cable run available. I could use this to link up one new terminal position that replaces one of the three links sensors. First question is can the installer use telephone twisted pair cable? Not best practice and risky for breaks I would suspect. But desperation times ..... This would leave me with two sensors and six wires. I am loath to consider two sensors on one zone, and am led to believe that you cannot mix two wire sensor zones with 4 or 6 wire zones. So second question is can the installer use the + and - wires from one zone to power a sensor on another zone? This would allow 4 wires, 2 shared power plus alarm / tamper per sensor. If this is the case then it increases the choice of replacement controller. Many thanks.