There are relatively few things I’d do differently “next time” but in a few cases new products have come onto the market which address some of the problems with the solutions selected.<\/p>\n\n\n\n
The stainless steel, heat pump compatible hot water storage cylinder made by Gledhill is a high-quality product but the insulation could be better. With no hot water draw-off the cylinder will typically lose 5 degrees overnight (60C @ 18:00 down to 55C at 08:00) even though the Plant Room tends to be hot (25C ambient – due to the passive solar gain (though there are no windows), the losses from the cylinder and the heating effect of the solar PV inverter and other electrical equipment).<\/p>\n\n\n\n
An alternative to consider is one of the phase change “heat batteries” such as those from Sunamp<\/a>. These are physically smaller than a comparable cylinder and are very well insulated. Losses from stored heat are much lower.<\/p>\n\n\n\n I really ought to measure exactly how much this is an issue but the DALI-controlled LED dimmers are always warm to the touch and must be drawing a few watts 24×7 even when the lights are “off”.<\/p>\n\n\n\n The newer versions of the MDT DALI Control IP64 Gateway include support for:<\/p>\n\n\n\n Energy saving function for switching off the ECGs in the 16 DALI groups (via additional KNX switch actuator)<\/p>https:\/\/www.mdt.de\/EN_Dali_Gateway.html<\/cite><\/blockquote>\n\n\n\n In other words, if the mains supply to the LED dimmer is wired via a KNX switch actuator channel, the DALI gateway can be configured to automatically switch off the mains supply to that dimmer (Electronic Control Gear; ECG) whenever the dimming value is set to 0%.<\/p>\n","protected":false},"excerpt":{"rendered":" There are relatively few things I’d do differently “next time” but in a few cases new products have come onto the market which address some of the problems with the solutions selected. Hot Water Storage The stainless steel, heat pump … Continue reading Lighting Dimmer Standby Power Usage<\/h2>\n\n\n\n