Online contact management system for building services

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Oh [Music] you hello very good morning to everybody I hope you can hear me this is a bit weird for me this is the first webinar I've ever done so I could just be sitting in my dining room talking to myself for all I know and hopefully I'm not looking down the list I'm pretty sure first people know who I am anyway there's no strangers in here but just in case you don't my name is Andy kam self I am a trainer within the building services industry I do training for the BC ia I'm for Sante but this course is my work this is not in any way endorsed by the be CIA or by sláinte so if you have complaints about it you need to send them directly to me I yes I should point out I thought let's see I've done this course so many times I'm actually quite nervous about this so please bear with me hopefully everything will go okay I just want to introduce the topics that we'll be covering we've got to be looking at an overview of building services so just a very quick look at what we mean by building services can I quickly touch on a brief history of Building Control what is a building management system a look at DDC controllers direct digital control and what that actually means a very brief look at controller networks head end supervisors typical beams applications example beams and control monitoring application and then at the end as I say we'll have an opportunity for questions if you've got any now I do see there's some people from Sante in here this course I originally did for the sales team at Sante so some of this content you will have seen before Phil the towards the end though I've put in a practical example of Benz control and monitoring application so that is new so if you want to have a keep until the end this course is aimed at non-technical people this is a very simplistic overview of Benz it originally stemmed the the concept I had when I came up with this was my kids have no clue what I do I'm like Chandler off of friends I go to work every day they have no clue what it is I do so I have to think in very simple terms right what is it that we do what is Ben's so if you are a Ben's professional you're gonna understand most of this stuff it's gonna seem very simplistic so we dive into this so the learning objectives for this course the idea is to just give a basic introduction to Ben's it's about the terminology and the basic principles that were using within modern building automation and what they mean like I say originally this course was intended for the santé sales team so you've got a whole bunch of people who are selling sensors and peripherals etc and they didn't quite know how it gelled together into the wider system so that was what this course work was intended for as I said realized they had some broader appeal because if you come across Ben's maybe you're a mechanical contractor if you're you know admin staff you're ordering all these bits you you see part numbers but you don't really have any context for that so you don't really know what it is where the where they fit into the wider system um first section is an overview of building services and this is slightly necessary you need to understand what it is we're controlling before you can understand how we go about controlling it now it's not an exhaustive list at all you know this whole course is designed to last for about an hour to an hour and a half if you want to be a building services engineer fully qualified then obviously you're going to need full afternoon for that I did anyway seriously though these are very brief look at at each topic so in a building we have to have services in order for that building to function it's fairly obvious when you think about it but we don't often step back and take an objective view of that those services common examples we need an electrical distribution system we need water and sanitary services life safety systems fire alarms as the example of given here and we need security systems as well to prevent unauthorized access not just areas of the building but to the entire building itself and the one that we concern ourselves with is the heating ventilation and air conditioning plant which is commonly referred to as HVAC and any building any dwelling will have heating ventilation and air conditioning a simple domestic dwellings a house you have ventilation by opening your doors and windows you have a heating system which is controlled usually by a quite simple thermostat system but of course if you've got a larger building a commercial building you need a more complex solution to do that it's no good just having one thermostat in reception if you've got a 25 story building you're going to need something far more complex to provide your control within that space and you're also going to obviously want to maximize the energy efficiency of the plant within that building you don't want it running wild the whole time so it's used to maintain environmental conditions that's the primary reason that we have our HVAC HVAC sorry but we do that for different reasons often it's for the comfort of the building occupants but sometimes its regulated depending on the task that's going in there though a lot of you will have worked with data centers there's very few people in the data center but it's extremely important that we have to regulate the temperature in a data center to prevent overheating of the equipment so it's not always just about the comfort of occupants and we regulate the environment by changing the temperature we also look at relative humidity in the spaces or I'm not going to go into depth about relative humidity in this in this course but it's the amount of moisture in the air and we also need to think about the ventilation rates how much ventilation we have coming into a building going back to the building or HVAC for comfort of building occupants you need an amount of fresh air coming into that building and modern commercial buildings don't have opening windows so we have to have plant to mechanically ventilate that space in an appropriate manner the heating in our buildings is typically provided by pumping low temperature water around the building LT h w is what call that is also called LP HW for low pressure hot water and that is water which is 90 degrees C or less pumped around your building there are other systems but that's a very typical way of distributing our hot water that goes to radiators or maybe it goes to coils in fan context the convector 's Frankl units etc the cooling is often provided in a similar way now there's a lot different ways you can provide cooling to a building and but a very common way is to have chillers chilling water which is then pumped around the building and use the chilled water in the same way that you would use the hot water the obvious difference being that the chilled water absorbs the heat whereas the the heater obviously puts heat into the space excuse me I do have this like cough we play a great game in our house now plague or pollen I suffer from hay fever so I'm rather hoping it's pollen cooling is also used in the control of humidity levels the reason that we use the cooling in a building for this is that obviously as things get cold condensation forms on them you've no doubt seen this on windows of cars particularly on cold mornings you get a lot of condensation is formed because humidity has an effect on comfort and it also has an effect as well Ian in data centers for a different reason we need to be able to control the moisture levels in our environment and by cooling the air we cause moisture to condense out of the air and to drain off onto the cooling coils so cooling has a secondary function in that respect if you go on and do it the further learning you will discover the some cooling is actually a very energy-intensive process and dehumidification particularly removing moisture from the air is incredibly energy intensive so it's very important to understand what happens when we're cooling the air down as I said earlier modern commercial buildings rarely have opening windows so in order to get the fresh air that we need into the space we have to have mechanical ventilation and in order for these services to operate correctly we need to be able to control them we can't just switch them or we could just switch them on but it wouldn't be very energy-efficient if you just had a switch on the wall and the fan ran and it heated flat out and then when you were warm enough we turned it off again it wouldn't be energy-efficient it wouldn't be practical and of course as most of you will be aware the thing we use for this is a microprocessor control based system which we refer to as a building energy management system or Benz now we also often call this a BMS building management system particularly here in the UK but adding that ii-in to give it the energy management system is actually it's quite an important lesson we need to understand that if we use these building management systems correctly then we can regulate the amount of energy that we're using or assist with regulating the amount of energy we're using and that obviously saves clients money as well as helping them to meet their environmental commitments