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Table of Contents
Troubleshooting
Summary of Contents for UNITED C5 Series
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Page 2: End User Disclaimer
End User Disclaimer: United systems have absolutely no end user serviceable parts. United does not authorize attempts by the spa owner/ user to install or repair/service any United products. Non-qualifi ed users should never open or remove covers, as this will expose dangerous voltage points and other serious risks. -
Page 3: Table Of Contents
Wiring Diagram ....... . 19 C5 Series Specs ....... . 21... -
Page 4: Electrical Installations
Electrical Installations 120V Installation (Cord and Plug Connected Units): Equipment Modules provided with a factory installed power cord are to be plugged into a grounding type, 120 volt, receptacle. The connection of the plug to a 240 volt service will cause the Equipment Module to operate improperly, create the potential for an electrical hazard, and will void the warranty. -
Page 5: 120V Permanently Connected
Electrical Installations 120V Installation (Permanently Connected Units): Units to be operated at 120 volt must have all electrical connections accomplished by a qualifi ed electrician in accordance with the National Electrical Code or the Canadian Electrical Code, and other electrical codes at the time of installation. -
Page 6: 240V Installation - 4-Wire
Electrical Installations 240V Installation (4 wire - Line 1, Line 2, Neutral, and Ground): Units to be operated at 240 volt must have all electrical connections accomplished by a qualifi ed electrician in accordance with the National Electrical Code or the Canadian Electrical Code, and other electrical codes at the time of installation. -
Page 7: 240V Installation - 3-Wire (No Neutral)
Electrical Installations 240V Installation (3 wire - Line 1, Line 2, and Ground): Units to be operated at 240 volt must have all electrical connections accomplished by a qualifi ed electrician in accordance with the National Electrical Code or the Canadian Electrical Code, and other electrical codes at the time of installation. -
Page 8: Control Box Installation
Control Box Installation Mounting and Plumbing Considerations The C5 control box is made for above ground portable hot tubs. As such it is an indoor unit, meant to be mounted inside of the portable hot tub’s enclosure. Water may fl ow through the heater in either direction, as long as the water is being pushed through it (plumbed up to the discharge of the pump). - Page 9 Control Box Installation The Pump-1 and Pump-2 receptacles are pre-wired for 240V. The Ozone, Place wire on Neutral to make Circulation Pump, Auxiliary, Audio, NEUTRAL receptacle 120V (on the C5-G) receptacles are all pre-wired for 120V. LINE-2 These receptacles are all dyed different colors, and have white wires striped with their respective receptacle’s color.
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Page 10: Finishing Installation
Control Box Installation For 3-wire 240V power installations NEUTRAL the incoming Line-1 and Line-2 wires will need to be connected to the correspondingly labeled power lugs on LINE-2 the circuit board. The incoming Line-2 will also need to be brought to the Neutral power lug. -
Page 11: Troubleshooting
You will need to set your multi-meter or voltmeter for AC Volts when testing voltages within the United Spas control system. You will only set your multi-meter or voltmeter to DC Volts when testing the IC Regulator Chip. -
Page 12: Incoming Voltage
Troubleshooting Incoming Voltage Checks Voltage Check for 120V Incoming Power: NEUTRAL NEUTRAL NEUTRAL LINE-2 LINE-2 LINE-2 LINE-1 LINE-1 LINE-1 Neutral and Line-1 Line-2 and Line-1 Line-1 and Ground 120VAC 120VAC 120VAC (108VAC-132VAC) (108VAC-132VAC) (108VAC-132VAC) 120VAC (Range of acceptability: 108VAC to 132VAC) should be read between;... - Page 13 Troubleshooting Voltage Check for 240V (4-Wire) Incoming Power NEUTRAL NEUTRAL LINE-2 LINE-2 LINE-1 LINE-1 Line-2 and Line-1 Neutral and Line-1 240VAC 120VAC (216VAC-264VAC) (108VAC-132VAC) 240VAC (Range of acceptability: 216VAC to 264VAC) should be read between Line-2 and Line-1. 120VAC (Range of acceptability: 108VAC to 132VAC) should be read between Neutral and Line-1.
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Page 14: Troubleshooting Test Points
Troubleshooting Troubleshooting Test Points The following test points will be used when troubleshooting the control box’s internal circuits: - Incoming Neutral 11 - Heater Line-1 - Incoming Line-2 12 - IC Regulator Chip - Incoming Line-1 13 - Pump-2 Hi-Speed Power - 20A Fuse (F1) 14 - 24Hr Circ &... -
Page 15: Transformer & 2A Glass Fuse
Troubleshooting Transformer Voltage Checks The transformers used in United Spas controls have 4 wires. There is a black and a brown wire (These two wires are blue and a white on the 120V transformers), and two yellow wires. It should be possible to slide the pins of your voltmeter/multi-meter into the top of the transformer plug (Which is plugged into Testing Point 8) where the wires enter the plug. -
Page 16: Low Voltage Circuit & Light Circuit
Troubleshooting Troubleshooting the Circuit Board’s Low Voltage Circuit If the control is non-operational, or the topside display is completely blank, but the incoming voltage, transformer, and glass fuse all test okay, the circuit board’s IC Regulator Chip should be tested. Checking the IC Regulator Chip Be sure your voltmeter/multi-meter is set to DC Volts to test this component. -
Page 17: Pumps/Blower/Ozone
Troubleshooting Troubleshooting the Pumps/Blower/Ozone If one or more of the pumps/blower/ozone are non-operational, re-check that the code settings have been programmed correctly for the equipment confi guration. If programmed correctly, the main fuses and output voltages should be checked. Checking the Main Fuses On the B7 board, the Circulation Pump, Pump-1, Audio, and ozone all use the F1 Fuse (Testing Point 4). -
Page 18: Heating Circuit
Troubleshooting Troubleshooting the Heating Circuit If the heater is non-operational or the unit is not heating properly, re-check that the code settings have been programmed correctly for the hot tub’s heating confi guration. If programmed correctly, the heating circuit should be tested. -
Page 19: Replacing Relays
Replacing Relays Replacing Relays Should a relay fail, it can be replaced by anyone qualifi ed to solder or work on electronics. Replacement relays should be available from anywhere United Spas products are sold. Relay Locations Temp Relay Light Relay... -
Page 20: Wiring Diagram
If the Component is 120V: Conne If the Component is 240V: Conne Ozone Ozone Light Light Light P-1 Hi P-1 Lo Cir Pump P-1 Lo Aux - P-2 Lo Circ - Audio Pump 1 P-1 Hi P-2 Hi AUX or P-2 Lo P-2 Hi Pump 2 Audio... - Page 21 NOTE: ct it's Common Line to the Neutral Lug To convert to 120V system, the 240V ct it's Common Line to the Line-2 Lug transformer will need to be swapped with its 120V equivalent. Neutral Ozone Line-2 Ground P-1 FUSE Line-1 P-2 FUSE ¤...
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Page 22: C5 Series Specs
C5 Series Specs Environmental Operational Temperature -0°F (-18°C) to 145°F (62°C) Storage Temperature -2°F (-19°C) to 175°F (79°C) Humidity Up to 80% RH, non condensing Mechanical Weight (without topside/cable) C5-B 7.50 lbs. (3.40 kg) C5-T 8.15 lbs. (3.70 kg) C5-L 8.00 lbs.