T
tomallen
I have just installed a 30kW 3-phase array and one of the draws from it is 4.5kW heat pump for a swimming pool. I want to wire up the heat pump so that it only draws when there is excess power. I've looked at an Immersun 2 unit, which looks as though it may do the job, but am unsure, and also wouldn't have a clue how to install it, so have a number of queries.
Is it a good idea to connect a heat pump to an Immersun unit? Max load per outlet for the Immersun is 3.2kW, but it looks like you could do so through the Multifunction relay terminal, that I presume you could connect to a relay that operates the pump. There are time delays and minimum thresholds built into the Immersun settings so that it wouldn't flick on and off every time the sun came out, that could damage the heat pump, I presume. Also, I understand heat pumps create a surge when they first come on. Can an Immersun handle that?
How do you connect it remotely? My supply meter is 60m from the pool. I don't think even the wireless unit will reach that far. I have a CAT5e connection between supply meter and pool shed - can the relay signal travel down that? Perhaps I should connect the sensor through the CAT5e?
Is an Immersun the best option at all? The heat pump is just about the only item connected to that phase, so all I really need is a switch that will turn on when it's sunny enough. But the only light-sensitive switches I can find are dusk till dawn ones that switch on when it's dark (the reverse of what I need) and none would be suitable for the power draw and time delay, etc, needed for a heat pump.
Is it a good idea to connect a heat pump to an Immersun unit? Max load per outlet for the Immersun is 3.2kW, but it looks like you could do so through the Multifunction relay terminal, that I presume you could connect to a relay that operates the pump. There are time delays and minimum thresholds built into the Immersun settings so that it wouldn't flick on and off every time the sun came out, that could damage the heat pump, I presume. Also, I understand heat pumps create a surge when they first come on. Can an Immersun handle that?
How do you connect it remotely? My supply meter is 60m from the pool. I don't think even the wireless unit will reach that far. I have a CAT5e connection between supply meter and pool shed - can the relay signal travel down that? Perhaps I should connect the sensor through the CAT5e?
Is an Immersun the best option at all? The heat pump is just about the only item connected to that phase, so all I really need is a switch that will turn on when it's sunny enough. But the only light-sensitive switches I can find are dusk till dawn ones that switch on when it's dark (the reverse of what I need) and none would be suitable for the power draw and time delay, etc, needed for a heat pump.