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HES Scheme training - boilers installed not to required standard
WEBVTT Kind: captions Language: en
00:00:03.320 [Music] 00:00:07.21000:00:07.220 hi I'm Colin Donnelly I work with Riga 00:00:10.49000:00:10.500 on behalf of the sustainable energy 00:00:12.23000:00:12.240 authority of Ireland on the home energy 00:00:14.62900:00:14.639 saving scheme today I'm going to be 00:00:16.46000:00:16.470 talking you through an example of two 00:00:18.23000:00:18.240 inspections that have boiler and heating 00:00:20.33000:00:20.340 control work carried out the first step 00:00:31.70000:00:31.710 is to go to the seven-day 24 hour time 00:00:34.10000:00:34.110 clock and turn on the hot water only 00:00:36.04900:00:36.059 setting this gives us a few minutes to 00:00:38.45000:00:38.460 look at the rest of the installation who 00:00:40.31000:00:40.320 are waiting for the hot water to heat up 00:00:41.88900:00:41.899 here we have a condensing oil boiler 00:00:44.63000:00:44.640 there are a number of points there at a 00:00:46.16000:00:46.170 glance we can see that aren't up to the 00:00:48.20000:00:48.210 standard of the scheme 00:00:51.22000:00:51.230 here we can see that the condensate pipe 00:00:53.83000:00:53.840 is not liked externally even though it 00:00:55.90000:00:55.910 falls immediately when it exits the 00:00:57.61000:00:57.620 boiler casing it is important to this as 00:01:00.10000:01:00.110 well insulation stopped at freezing 00:01:01.54000:01:01.550 during cold weather in this clip you 00:01:05.07900:01:05.089 will notice that the safety blow-off 00:01:06.37000:01:06.380 valve is terminating horizontally this 00:01:09.37000:01:09.380 is not to the standard of the home 00:01:10.69000:01:10.700 energy saving scheme this should be 00:01:12.91000:01:12.920 pointing down and terminating 100 00:01:14.95000:01:14.960 millimetres from the ground here we can 00:01:17.68000:01:17.690 see the wiring for the boiler under 00:01:19.48000:01:19.490 circulating pump coming out from the 00:01:21.24900:01:21.259 house this is not to the standard of the 00:01:23.35000:01:23.360 home energy saving scheme this should be 00:01:25.27000:01:25.280 in conduit and protected from the 00:01:26.68000:01:26.690 elements and possible damage the pipe 00:01:29.10900:01:29.119 work here is badly insulated the joints 00:01:31.24000:01:31.250 are poor and the pipe work is at severe 00:01:32.85900:01:32.869 risk of freezing this should ideally be 00:01:35.20000:01:35.210 insulated with particular attention paid 00:01:37.12000:01:37.130 around joints you will notice that the 00:01:39.91000:01:39.920 oil line coming into the boiler casing 00:01:41.68000:01:41.690 is not supported this is a possible risk 00:01:44.35000:01:44.360 of damage and a possible leak it should 00:01:46.48000:01:46.490 be cased and protected from potential 00:01:48.37000:01:48.380 damage here we can see the wrong type of 00:01:52.21000:01:52.220 fire valve is being used it should be 00:01:54.58000:01:54.590 the remote type terminating at least one 00:01:56.77000:01:56.780 meter away from the boiler with the 00:01:58.44900:01:58.459 sensor located over the burner 00:02:01.64900:02:01.659 in this shot we can see a circulating 00:02:04.26000:02:04.270 pump and some pipe work both sides of 00:02:06.60000:02:06.610 the circulating pump shall be crossed 00:02:08.21900:02:08.229 bounded with a 10 square earth wire all 00:02:10.97900:02:10.989 pipe work in the boiler casing should 00:02:12.66000:02:12.670 also be carefully insulated with all 00:02:14.46000:02:14.470 joints taped or glued looking at the 00:02:18.57000:02:18.580 boiler logbook we can see that has not 00:02:20.55000:02:20.560 been filled in the commissioning 00:02:22.50000:02:22.510 certificate shall be filled in giving 00:02:24.39000:02:24.400 all the contractor and boiler setup 00:02:26.16000:02:26.170 details by filling in the boiler logbook 00:02:28.97900:02:28.989 properly it helps to diagnose future 00:02:31.14000:02:31.150 problems and operational and maintenance 00:02:32.85000:02:32.860 errors now it is time to go around all 00:02:36.15000:02:36.160 the radiators in the house making sure 00:02:38.46000:02:38.470 that none of them are heating up on the 00:02:39.80900:02:39.819 hot water circuit why it's doing this we 00:02:42.57000:02:42.580 can check to see to their term estatic 00:02:44.37000:02:44.380 radiator valves fitted when checking 00:02:47.22000:02:47.230 these radiators it is important to keep 00:02:49.05000:02:49.060 a lookout for leaks or possible damage 00:02:51.30000:02:51.310 to might have occurred during the course 00:02:52.74000:02:52.750 of the installation upon confirming do 00:02:55.11000:02:55.120 none of the radiators are heating up on 00:02:56.97000:02:56.980 the hot water circuit it is now time to 00:02:58.94900:02:58.959 go to the hot press there are a number 00:03:02.10000:03:02.110 of items to check at the hot press here 00:03:04.83000:03:04.840 we can see a number of points that 00:03:07.05000:03:07.060 aren't up to the standard here we can 00:03:09.50900:03:09.519 see that there is no pipe insulation 00:03:11.16000:03:11.170 within 1 meter of the cylinder all pipe 00:03:14.06900:03:14.079 work within 1 meter of the cylinder must 00:03:16.22900:03:16.239 be insulated 00:03:20.61000:03:20.620 in this shot you noticed wiring is 00:03:23.22000:03:23.230 untidy and at risk of getting damaged or 00:03:25.32000:03:25.330 pulled out of connections by the 00:03:26.69900:03:26.709 homeowner using their hot press here we 00:03:30.42000:03:30.430 can see a junction box immersion switch 00:03:33.03000:03:33.040 and a wiring center in this installation 00:03:35.97000:03:35.980 the wiring is not up to standard as can 00:03:38.85000:03:38.860 be seen from the clips here we can see a 00:03:41.43000:03:41.440 junction box which strip connector is 00:03:43.17000:03:43.180 used this is not the standard note the 00:03:45.53900:03:45.549 damaged blue wire the emergence which 00:03:49.38000:03:49.390 should have an immersion timer this is 00:03:52.14000:03:52.150 not the case here this wiring Center 00:03:55.05000:03:55.060 should have all wires clipped neatly 00:03:56.69000:03:56.700 this earth wire is not to the standard 00:03:59.16000:03:59.170 of the scheme as it is not ten square or 00:04:02.13000:04:02.140 coming from the board or from an earth 00:04:03.80900:04:03.819 rod in all circumstances where this has 00:04:06.72000:04:06.730 come across it will have to be brought 00:04:08.28000:04:08.290 up to the current standard it is now 00:04:11.30900:04:11.319 time to see that the boiler interlock is 00:04:13.41000:04:13.420 working correctly we do this by turning 00:04:15.96000:04:15.970 the cylinder thermostat down to zero 00:04:19.09900:04:19.109 when we turn this thermostat down to 00:04:21.75000:04:21.760 zero we shall be able to hear or see the 00:04:24.18000:04:24.190 motorized valve closing it is now time 00:04:31.26000:04:31.270 to go and check that the boiler has 00:04:33.33000:04:33.340 turned off this will indicate that the 00:04:36.08900:04:36.099 hot water part of the boiler interlock 00:04:38.15900:04:38.169 is installed correctly now we're back at 00:04:41.19000:04:41.200 the boiler we can clearly see that the 00:04:43.35000:04:43.360 boiler has not turned off this indicates 00:04:45.69000:04:45.700 that the boiler interlock has not been 00:04:47.70000:04:47.710 installed correctly this is an 00:04:49.50000:04:49.510 electrical fault here we can see a 5 amp 00:04:53.52000:04:53.530 fuse was in the spur this should be 00:04:56.10000:04:56.110 removed and replaced with a 3 amp fuse 00:04:58.71000:04:58.720 to comply with the current et Cie 00:05:00.99000:05:01.000 regulations 00:05:03.42000:05:03.430 we continue with the last part of our 00:05:05.70000:05:05.710 inspection the next step is to test the 00:05:08.43000:05:08.440 space heating circuit to see that it is 00:05:10.74000:05:10.750 installed correctly we turn on the space 00:05:13.11000:05:13.120 heating circuit now and give it a few 00:05:15.21000:05:15.220 minutes to heat up when enough time has 00:05:17.99900:05:18.009 elapsed for the radiators to heat up we 00:05:20.90900:05:20.919 take a look around to make sure that 00:05:22.83000:05:22.840 they are all heating and that none of 00:05:24.42000:05:24.430 them are air locked are not working 00:05:25.86000:05:25.870 properly this will often give an 00:05:28.49900:05:28.509 indication if the system has been 00:05:30.33000:05:30.340 balanced correctly this system has not 00:05:32.99900:05:33.009 been balanced correctly this will lead 00:05:35.61000:05:35.620 to inefficiencies 00:05:36.81000:05:36.820 for example the boiler won't be in 00:05:39.06000:05:39.070 condensing mode the last step of the 00:05:41.46000:05:41.470 inspection is to go to the room 00:05:42.96000:05:42.970 thermostat and turn it to zero while 00:05:46.11000:05:46.120 snoring that this term estat is not in a 00:05:48.33000:05:48.340 good location it is located in a room 00:05:51.36000:05:51.370 with another source of heat an open fire 00:05:53.96900:05:53.979 if lit this fire could lead to 00:05:56.10000:05:56.110 determines that getting an inaccurate 00:05:58.08000:05:58.090 reading and shorting down the system via 00:06:00.65900:06:00.669 the boiler interlock when it should 00:06:02.58000:06:02.590 still be turned on when the room 00:06:05.40000:06:05.410 thermostat is set to zero we check to 00:06:07.86000:06:07.870 see that the boiler has switched off 00:06:09.33000:06:09.340 this indicates that the boiler interlock 00:06:12.15000:06:12.160 is working on the space heating circuit 00:06:14.25000:06:14.260 also the space heating side of the 00:06:16.98000:06:16.990 boiler interlock has been installed 00:06:18.68900:06:18.699 correctly as it turns off the boiler and 00:06:21.02900:06:21.039 closes motorized valve we then reset the 00:06:25.23000:06:25.240 room term stat and cylinder thermostat 00:06:27.36000:06:27.370 to their original settings
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