page 3316.0 J-210/J-220 Convertible Circuit Diagram (60Hz)This wiring diagram is used for the J-20/J-220 US/Canada 20/240VAC (60Hz) convertible power models.OptionalOzonatorO3Standard 3-Wire 120 VAC Connection (60 Hz, 1 Phase, 15A Service)Use copper conductors ONLY. Wire size must be appropriate per NEC and/or local codes.WHTWHTWHTWHTWHTWHTBLKBLKBLKBLKBLKBLKBLKBLKREDREDRED*RED*RED*REDHeater1.0 kW @ 120 VAC (3-wire connection)4.0 kW @ 240 VAC (4-wire connection)Pressure SwitchHi-limit/Freeze SensorTemperature SensorJ2J3F120A250VSC-20 Main PumpSpa LightTransformer120 VACOptional 4-Wire 240/120 VAC Convertible Heater Connection1. Remove and discard the factory installed GFCI Cord.2. Move RED* wire from TB1 position #1 to TB1 position #3 as shown below.3. Permanently connect to the power supply. Use copper conductors ONLY.Wire size must be appropriate per NEC and/or local codes.4. If hot tub is to be operated on 30A service, make sure the jumper providedat location JP1 #1&2 on the circuit board is installed. If hot tub is to beoperated on 40A service, remove the jumper JP1 #1&2 on the circuit board.HILOJ1 Logic Jumper Settings (Factory Defaults Shown)JP -2 oN = 30A Logic (4-wire 20/240 VAC operation only)JP -2 oFF = 40A Logic (4-wire 20/240 VAC operation only)JP 7-8 oN = °C Temperature DisplayJP 7-8 oFF = °F Temperature DisplayThis device complies with Part 15 of theFCC rules. Operation is subject to thefollowing two conditions:1. This device may not cause harmfulinterference.2. This device must accept any inteferencereceived including interference that maycause undesired operation.J20J2J2J4J6JJ5J3J7 J7 J8 J9 J0J5J6 Heater IN Heater oUTFK5 K7 K8J1ControlPanelTHERMSWITCH75318642To circuit boardGRNTb1WHTBLK123123GROUNDGRNTb1WHTBLKGROUNDWARNINg, ELECTRICAL SHOCK HAZARD ExISTS! Always remove power to spa before wiringand/or configuring the circuit boardMoveWireHardWireOnlyPlug-inGFCICord (USModelsOnly) ORHardWire