31
Three Heater Wiring
By making use of the Multifunction Relay it is possible to connect 3
heaters. One heater is wired to the Heater 1 output, the Heater 2 output
is wired to the Common of the relay, the other two heaters are then
connected to the Normally Open and Normally Closed contacts.
The heaters are heated sequential, i.e. Heater 1 is heated with surplus
power until the thermostat opens, the immerSUN will then display
HOT
.
After a few seconds, (provided export power is still available), Heater 2
will start to be heated. If Heater 2 reaches maximum temperature, the
display will show
HOT
and the immerSUN will switch the relay over so
that Heater 3 can be heated.
During heating of a lower priority heater, the immerSUN will switch to
the higher priority heater periodically to check if it can take more heat.
The heating priority can be set in the Main Menu
(Set Priority)
. Also the
period of time between heater 'checks' can be set in the Advanced
Settings Menu
(Priority Check) .
Important!
●
Maximum load: 3.2KW (each heater)
●
Minimum load: 150W (each heater)
●
Recommended cable size: 2.5mm²
●
Must be a simple resistive load without electronic controls
Settings
Heater 1 Type:
Set to match the load
Heater 2 Type:
Set to match the load
Heater 3 Type:
Set to match the load
Relay Function:
Third Heater
External Boost:
Not used
Tips & Ideas
●
Smaller loads can be connected in parallel as long the maximum
load is not exceeded.
●
The immerSUN has built-in timers that can replace any timers that
have been removed.
●
The
External Boost
input is free to use if an auxiliary device needs to
have some control over the immerSUN.
Summary of Contents for automatic power controller
Page 1: ...1 ENGLISH Installation User Guide V1 2...
Page 11: ...11 Advanced options...
Page 24: ...Setup...
Page 25: ...25 Wiring diagrams...
Page 36: ...36 Wiring Dual Tariff Single Meter...
Page 44: ...44 4eco Ltd Church View Business Park Binbrook Lincolnshire LN8 6BY England 44 0 1472 398838...
