257 iSolar Plus

Description:
Differential temperature controller for solar heating systems with 2 relay outputs.
Complete with 4 input sensors and power cord.

Power supply:  115V
Power Consumption:  2A
Rating of relay contacts:  2A
ΔTadjustment range:  2 -40°Ra

Features:
– Graphical display with system-monitoring
– 4 temperature input sensors
– 2 electronic relays for pump speed control
– 9 selectable system arrangements
– 2 ΔT functions
– 2 tank priority logic
– Real time clock for timer function
– Energy use meter
– Freeze protection
– Adjustable min collector temperature
– Adjustable max storage tank temperature
– Cooling function
– Emergency shutdown function
– V Bus connection for optional data logging interface
– Monitor and control of system by optional Service Center Software