WATTrouter ECO - user manual
www.solarcontrols.cz
How to fit and setup the device
Page 54 from 66
EXAMPLE NO. 3 – ALL 6 LOADS, CONTROL MODE - EACH PHASE INDEPENDENTLY
Loads specified in example No. 2 but more complex connection. Control mode is set for each phase
independently.
Connect the following to L1 phase:
- boiler has 1st priority (SSR 1 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:
- pump for heating has 1st priority (relay No. 2), requirements are the same as in example No. 2.
- one heating coil with 2nd priority (SSR 2).
Connect the following to L3 phase:
- auxiliary contact with 1st priority (SSR 3 operating as a relay), will also turn on the circulation pump connected
actually to phase L2 (here, a small amount of power may be drawn from the public grid at phase L2, but in
order to prevent it we would have to use two circulation pumps).
- 2nd heating coil with 2nd priority (SSR 4).
Unfortunately, in this "one-regulator" configuration setup, the 3rd heating coil cannot be connected. We would
have to make sure that the circulation heat pump will be turned on by one output only - using a time schedule,
or completely separately - outside of WATTrouter.
