Details
The iSolar™ BX is a multi-functional temperature differential controller with
add-on system functions for use in a wide variety of solar thermal heating
applications. iSolar™ BX is equipped with four relay outputs; three triac
pump speed control relays and one standard relay. These outputs include
two pulse width modulation (PWM) outputs that enable energy conservation
measures for high-effi ciency direct current (DC) pumps. The controller
is equipped with fi ve Pt1000 sensor inputs, two analog Grundfos sensor
inputs, and one impulse fl ow meter input. Twenty six system confi guration
options are predefi ned for control of a standard solar water heating system,
drainback systems, supplemental space heating, multiple storage tanks,
heat dump and storage tank booster heating.
Inputs: (5) Pt1000 temperature sensors.
Outputs: (3) triac and (1) standard relays.
Triac relays capacities: 1A / 115 V.
Standard relay capacity: 2A / 115 V.
Power supply: 100—240 V - 50/60 Hz.
Data interface: V-Bus.
ΔT adjustment range: 2—40ºFΔ.
Min. temperature differential 2ºFΔ.
Hysteresis: 2ºFΔ, ± 1ºFΔ.
Max. tank temperature range: 35—205°F.
Max. collector temperature range: 210—375°F.
Emergency shut down of the collector: 230—395°F.
Min. collector temperature range: 50—195ºF.
Antifreeze temperature option: 15—50°F.
kWh (BTU) fl ow input: 0—26 gpm.