WATTrouter Mx - user manual
How to fit and setup the device
Page 59 from 82
EXAMPLE NO. 4 – 5 LOADS, CONTROL MODE = EACH PHASE INDEPENDENTLY
Boiler and pool filtering system specified in example No. 2 plus 2 resistive electric heaters and a heating pump
used to heat the swimming pool. Everything in more complex connection plus control mode set for each phase
separately.
Each electric heater draws 2 kW and should be powered only with the PV-surplus energy, independently of the
house hold primary heating system. These heaters must be deactivated at summer time - either through built
in thermostats, by deactivating fuse switches for respective outputs or by deactivating them in the software.
The heating pump draws power of 1.3 kW and it is powered only with the PV-surplus energy, or manually,
independently of the WATTrouter device.
Connect the following to L1 phase:
- boiler has 1st priority (SSR No. 1).Requirements are the same as in example No. 1.
- pool filtering pump has 2nd priority (relay No. 1).Requirements are the same as in example No. 2.
Connect the following to L2 phase:
- 1st electric heater with 1st priority (SSR No. 2).
- heating pump with 2nd priority (relay No. 2).
Connect the following to L3 phase:
- 2nd electric heater with 1st priority (SSR 3).
You may activate the ”Prepend before SSR” function for relay outputs, in order to better use the PV-surplus
energy at L2, when the heating pump and electric heater operate at the same time.