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...Digital controller xrcx operating manual rev b contents general warnings description regulation defrost fans front panel commands parameters installation and mounting electrical connections how to use the hot key alarm signaling technical data please read before using this is part of product should be kept near for easy quick reference shall not used purposes different from those described hereunder safety precautions check supply voltage correct connecting do expose water or moisture only within limits avoiding sudden temperature changes with high atmospheric humidity prevent formation condensation warning disconnect all any kind maintenance must opened format x mm microprocessor based suitable applications on medium low ventilated refrigerating units it has three relay outputs control compressor fan also ntc probes first one second located onto evaporator termination manage third optional connect terminals signal condenser display a performed according air probe positive differential...