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 | |
|
|
|
|
|
|
|
| Electricity not on or one of the |
| Check electricity supply. | |
|
| supplies has failed. |
| ||
|
|
|
|
| |
|
| The water supply is connected |
| Reconnect the water supply to the inlet | |
|
| to the outlet of the unit. |
| of the unit (marked blue). | |
|
|
|
| Turn off the power, open the unit and | |
|
| One or more of the heater |
| reset by pushing the button(s) on the | |
|
| module |
| top of the heater module(s). Establish | |
| Cold water only– |
|
| and fix the cause of the overheating. | |
|
|
| Test by turning cold water supply off to | ||
| neon light off. |
|
| heater, then open hot water faucet(s). | |
|
| Plumbing crossover. |
| No pressurized water flow should be | |
|
|
| evident. If it is evident, then that | ||
|
|
|
| ||
|
|
|
| plumbing crossover needs to be | |
|
|
|
| corrected for the heater to operate. | |
|
|
|
| Turn off the power, open the unit and | |
|
| The flow transducer is not |
| observe if the flow transducer “spins” | |
|
| working. |
| when the water is turned on. If not, | |
|
|
|
| contact BBT toll free at | |
|
|
|
|
|
|
|
| Water flow is too high. |
| Adjust the water flow (see Graph 1 |
|
|
|
| on Page 8). |
| |
|
|
|
|
| |
|
| One of the power supplies is not |
| Check the supply voltages to the |
|
|
| on. |
| heater and rectify if necessary. |
|
|
|
|
| This is likely an issue with the power |
|
| Water too cold– | The power supply voltage has |
| supply. Compensate for this by |
|
| dropped. |
| increasing the temperature setting |
| |
| neon light on |
|
| ||
|
|
| (turn dial clockwise). |
| |
|
|
|
|
| |
|
| Temperature dial is turned too |
| Turn the temperature control dial |
|
|
| low. |
| clockwise. |
|
|
| The inlet water temperature has |
| Turn temperature knob up or reduce |
|
|
|
| the flow rate according to Graph 1 |
| |
|
| dropped. |
|
| |
|
|
| on Page 8. |
| |
|
|
|
|
| |
10
