14MMW-AP___1CHQE18-3619. External wiring diagramOutput signal function wiringConnect the following output signals from the Hot Water Module.NOTEAuxiliary relays (locally procured) must be connected to output signal function wirings to allow connection to the HotWater Module output signal functions. The maximum current output signal, from each of the output signal functionwirings, is 16 mA. Please ensure the rated current of the relay coil is less than 16 mA to avoid damage to the HotWater Module P.C. board.▼Output function wireCAUTIONOutput signal functions are separated from primary basic insulation.• To prevent noise trouble, use 2-core shield wire.• Determine the wire length between the hot water module output signal function terminal block and the relay up to2 m.• Locally procure and install protective devices such as the heater and pump.Terminalblock No. Function CommentsCOM DC12 V (COM) Common for connector S2 ~ S5S1 Defrosting output (COM-S1) DC12 VRelay coil is less than 16 mA.S2 Line heater output (COM-S2) DC12 VRelay coil is less than 16 mA.S3 - -S4 Heating thermostat ON output (COM-S4) DC12 VRelay coil is less than 16 mA.S5 Pump output (COM-S5) DC12 VRelay coil is less than 16 mA.COMS1S2S3S4S5ExternalactuatorOutput function wireHot Water Moduleoutput signalfunction terminalblock (CN60)Locally procuredRelay