LAARS IGI-180C - Installation Manual - Manual (Page 53)

53
Commercial Models (See figure 49):
1. Commercial models have the control mounted on the front of water heater, which will allow the
outlet water temperature to be adjusted from 96-185
°F. If a remotely located control is desired,
install and wire a second control according to the instructions in the previous section,
“Temperature Control Installation”.
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.
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 control (s) will indicate hot water use with the green “IN USE” indicator.
5. The control(s) 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.
CAUTION
Check local codes for the maximum water temperature setting allowed when used in nursing homes,
schools, day care centers, and all other public use applications.
NOTICE
The default temperature setting displayed for commercial controls that will appear when the water
heater is first connected to the electrical supply or in the event of a power interruption is 140°F.
Main Control for Commercial Models
°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.
Figure 49