57A15.0 Transformer TestTo Test The Transformer:1.2.3.Leave the transformer connector J4 plugged into the circuit board.Set your voltmeter to the highest VAC range.Place the voltmeter probes directly into the backside (wire side) of the J4 connector and test asfollows:US/Canada 60HzJ-315, J-325 (120 VAC or 240 VAC Powered*)Connector J4 VoltageBlack to White 120 VAC*Yellow to Yellow 12-14 VACUS/Canada 60HzJ-335, J-345 (240 VAC Powered)Connector J4 VoltageBlack to Red 240 VACYellow to Yellow 12-14 VAC*Special Instructions For All 120 VAC/240 VAC Convertible Models (J-315, J-325)120 VAC Power Configuration: Convertible models include a factory installed 15 foot GFCI cordrated at 15A/120 VAC. To use the cord, the hot tub must be installed within 10 feet of a dedicated,grounded type electrical outlet. Do not use an extension cord of any type! If the hot tub is morethan 10 feet from such an outlet, it must be hard wired to a single pole 15A GFCI breaker. Refer topages 50-51 for your specific circuit board configuration.240 VAC Power Configuration: Convertible models can be hard wired for 4-wire 120/240 VAC pow-er. This confi guration powers the heater with 240 VAC while powering all other components with 120VAC. An external 30 or 50A dual pole GFCI breaker is required. Refer to pages 50-51 for your specifi ccircuit board configuration.120 VAC/240 VACJ-315, J-325 Model(Wire Side View)BWYY240 VACJ-335, J-345(Wire Side View)BRYY