Installation Manual Owner's manual
Commercial Models (see Figure 11):
1. Commercial models are supplied in the water heater carton with a Remote Main Control, which
will allow the outlet water temperature to be adjusted from 98-185°F. When additional Remote
Controls are installed, the temperature can only be adjusted on the remote control that has the
Priority Indicator Light glowing. The temperature displayed on the control in use will also be
displayed on all the other remote controls.
2. All hot water faucets must be off to get the full range of temperature adjustment. The control will
only allow an adjustment range of 98-110°F while hot water is in use to prevent scalds. If there
are other Remote Controls installed, press the “Priority” button on the control you want to change
the setting on and the yellow “Priority” indicator light will glow.
3. Press the “H” or “C” buttons until the desired temperature is shown on the display.
4. The water heater will automatically start heating water whenever a hot water faucet is opened.
The remote temperature control(s) will indicate hot water use with the green “IN USE” indicator.
5. All controls can also display diagnostic error codes, water flow rate through the unit (in gallons
per minute) and the outlet water temperature.
6. Pressing the “Priority Button” followed by the “H” button will display a sequence of up to 9 error
codes, if any, stored in memory that has been experienced. Any error codes will be displayed on
the digital monitor in sequence starting with the most recent code.
7. To display the water flow through the water heater with hot water in use, depress the “H” button
for 2 seconds and then simultaneously press the “P” button. (GPM = Display Readout X 0.1).
8. To display the outlet water temperature while in use, depress the “C” button for 2 seconds and
then simultaneously press the “P” button.
°F
Set Temperature
Main Controller
239-44509-00
In Use
Priority
endless hot water system
CAUTION: Hotter water increases the risk
of scald injury. Before changing temperature
setting, see instruction manual.
Control for Commercial Models (Fig 11)
32