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...Rel del ir smart irchbe electronic controller for normal and low temperature ventilated refrigeration units bn t c or temp refrigera with heater defrost timed range tion by two evaporators control connection diagram compressor r n l direct mode power supply ntc ptc di no signal cables together read carefully in the text rd v a b set point ma max probe probes vac switching inputs room relay management of to sensors outputs simple intuitive installation con guration evaporator fan pre loaded gurations most common applications name type description default value hp haccp reports st real time clock ctl differential hysteresis dl interval between defrosts hours...