Note: The unit will work at lower supply voltages but the following changeswill apply:
Maximum output | 15kW at 220V | 22.5kW at 220V |
| 13kW at 208V | 20kW at 208V |
Temperature control range | 87°F to 116°F at 220V | 87°F to 116°F at 220V |
| 82°F to 108°F at 208V | 82°F to 108°F at 208V |
Maximum flow rate | 84% of maximum at 220V | 84% of maximum at 220V |
(refer to Graph 1, Page 8) | 75% of maximum at 208V | 75% of maximum at 208V |
WARNING
Always switch off the electricity supply to the unit before you remove the cover.
If you have a problem...
Service should only be performed by qualified personnel
| Symptom | Cause |
| What to do | |
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| Electricity not on or one of the |
| Check electricity supply. | |
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| supplies has failed. |
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| The water supply is connected |
| Reconnect the water supply to the inlet | |
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| to the outlet of the unit. |
| of the unit (marked blue). | |
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| Turn off the power, open the unit and | |
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| One or more of the heater |
| reset by pushing the button(s) on the | |
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| module |
| top of the heater module(s). Establish | |
| Cold water only– |
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| and fix the cause of the overheating. | |
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| Test by turning cold water supply off to | ||
| neon light off. |
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| heater, then open hot water faucet(s). | |
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| Plumbing crossover. |
| No pressurized water flow should be | |
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| evident. If it is evident, then that | ||
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| plumbing crossover needs to be | |
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| corrected for the heater to operate. | |
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| Turn off the power, open the unit and | |
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| The flow transducer is not |
| observe if the flow transducer “spins” | |
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| working. |
| when the water is turned on. If not, | |
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| contact BBT toll free at | |
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| Water flow is too high. |
| Adjust the water flow (see Graph 1 |
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| on Page 8). |
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| One of the power supplies is not |
| Check the supply voltages to the |
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| on. |
| heater and rectify if necessary. |
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| This is likely an issue with the power |
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| Water too cold– | The power supply voltage has |
| supply. Compensate for this by |
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| dropped. |
| increasing the temperature setting |
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| neon light on |
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| (turn dial clockwise). |
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| Temperature dial is turned too |
| Turn the temperature control dial |
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| low. |
| clockwise. |
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| The inlet water temperature has |
| Turn temperature knob up or reduce |
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| the flow rate according to Graph 1 |
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| dropped. |
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| on Page 8. |
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