Balanced operation of two parallel Aquarea split heat pumps (load balancing)

[DanieleB7]

Hi everyone,

We are considering implementing a system with two aquarea split heat pumps heating a single DHW tank in parallel.

Each heat pump will work independently for space heating, with separate buffer tanks to heat two separate apartments.

Using a separate heishamon controller for each heat pump and a centralised nodered/home assistant controller, what we would like to know is the following.

1. is it possible to control the two heat pumps to modulate/work synchronously such that each pump equally heats the hot water tank? Since the DHW tank is shared between two neighbours it is important that each pump heats the water equally.

2. Is it possible for both DHW and space heating to modulate the heat pumps to track solar production ie can you directly control the % of modulation of the heatpump at any one time or can this only be done indirectly by changing the temperature setpoint.

any help from someone with direct experience would be much appreciated

thank you

Daniele