Use and Care Manual

74
INSTALLATION INSTRUCTIONS
Minimum Temperature Adjustment
by the Main Remote Control (UMC–
117, USC1–117, and USC2–117)
Residential water heater temperatures can be adjusted
down to 85°F (29°C), when required.
To change the temperature settings down to
85°F (29°C):
Turn on the remote control.
Turn off the gas and water to the water heater by closing
the shut-off valves.
Press the DOWN adjustment button repeatedly until
100°F (38°C) shows in the LED display.
NOTICE:
LED display only shows °F.
Press the DOWN adjustment button 3 times within 5
seconds. The display will show “85.”
Turn on the gas and water to the water heater by
opening the shut-off valves.
NOTICE:
The maximum flow rate at 85°F (29°C) is 1.3 gpm (5.0 L/m).
When the water heater is installed above 2000 ft. (610
m), the settings on the DIP switch located on the control
board need to be changed per vent length and altitude.
If these settings are not changed, the water heater may
not function properly.
NOTICE:
If the water is installed under 2000 ft. (610m) altitude, refer
to "Vent Lengths and DIP Switch Adjustments".
Verify the altitude that the water heater is installed.
Turn off the gas and water to the water heater by closing
the shut-off valves.
1
2
4
5
High-Altitude DIP Switch Adjustments
1
3
Start/Adjust
Setting the Water Temperature (cont.)