Triassic Posted October 18, 2018 Share Posted October 18, 2018 I visited the trade plumbing exhibition in Manchester today, mainly to see the Sunamp stand and talk to ASHP and UVC and plumbing suppliers. One ASHP company we’re displaying a series of non-inverter heat pumps, mainly in sizes below 9kw. I asked why they’d gone down the direct drive route, they said that if connected to a suitable heat dump, such as a Sunamp or Water cylinder then an inverter wasn’t required. What do you think? Link to comment Share on other sites More sharing options...
Jeremy Harris Posted October 18, 2018 Share Posted October 18, 2018 I'm not convinced. The main advantage of having a variable speed ASHP is its ability to modulate down and avoid defrost cycling. Ours virtually never runs at its full rated power; more often than not it runs at around its minimum power, which significantly reduces the risk of frosting up. Link to comment Share on other sites More sharing options...
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