Honeywell Alpha/Delta 1000 System

This system was introduced in 1970. It had a card cage with processors, memory and PROM cards and for external communication a TTY card /Interface combination boards were used. The Delta was supplied with a power supply that supplied power for the 10 Delta channels. The power supply maintained up to 55 MA current on the channels by varying the voltage between 50 and 150 VDC. The delta then controlled the curent to 0 or 55 MA to send a one or zero down the channels. Each transmitted word was 16 bit with 13 data bits and 3 control bits. This was the first automation system and had an energy management System (EMS) and patrol tour programs in it besides the event initiated start/stop programs. To this day hundreds of these systems are still out there.

It could do all start/stop programming functions but did not have any DDC capability of its own except some of the DGP's did have DDC functionality. The Operating System was in the memory only and so was the database. Both were loaded via a tape/microdisc system. Later on they did introduce the PROM OS.

CITS has all information on this system and all of its documentation and other tools used to install, service and support this system. CITS can also reapiar all hardweare on this system and has stock for all of its patrs. CITS can provide all services for this system including training and reprogrammig it from scratch. This system was later ported to various PC interfaces like the DPC (Delta Professional Computer) and to this day there are still some of these systems out there. CITS can also support the PC front-ends that this system was ported to. The Delta was also ported to a Honeywell front end called the PCU (peripherals Control Unit).

CITS Advisory 1

All parts for this system are now obsolete and hence the current stock is not cheap. But CITS has in stock every item for this system. Parts available for this sytem are searcahable on this website. All items are available immediately. The prices are subject to change without notice for understandable reasons.

CITS Advisory 2

It may appear to that the cost of some tof these items is pretty expensive in some absolute sense but CITS advises that even at the curent prices the items are well worth it since otherwise you will be looking at repalcing the system or upgrading it or you will end up using a lot of time searching for the items. CITS recommends immediate attenstion to your system and offers repair/replacement for everry item in this system in short order. This way you can save tens of thousands of dollars. Please, remember that even migrating just one air handler can cost over 20 thousand dollars if not more. This is because all programs will have to rewritten and new hardwar/wiring installed and new front end used. Please call a CITS engineer to get more information and a recommended path for your migration. Pleae use a safe and economical approach for your site.

In the fianl analysis, use the cuurent system, reapair/service it as long as necessary and produce the money for the replacement for the long run.

Always use a safe and economical approach and not just what is technically available. Because the latter may be exciting but may not be justifiable for your business.

Thank you

RH