Install Instructions

Mascot ST Tankless Water Heater
Page 27
4.12 Gas High Altitude Setting
(no adjustment is needed below 2000 feet)
The Mascot ST has been set up at the factory for
altitudes of less than 2,000 ft, but it may be installed at
elevations up to 10,000 ft for use with Natural Gas or
Propane. If the installation is at an altitude of greater than
2,000 ft, then altitude settings need to be adjusted in the
Installer Mode as describe below.
NOTE: Above 2,000 ft (610 m), the water heater will
de-rate by 2-4% for each 1,000 ft (305 m) of altitude gain.
9:HA
Choose the correct value from the
following four options.
0 - 2
0 ~ 1,999 ft (0 - 609 m)
2 - 5
2,000 ~ 4,999 ft (610 - 1,523 m)
5 - 8
5,000 ~ 7,999 ft (1,524 - 2,438 m)
8 - 10
8,000 ~ 10,000 ft (2,439 - 3,048 m)
High Altitude settings (2,000 ~ 10,000 ft)
1. With the Power
turned OFF, press the 'Modes button' for 5 seconds to get into the Installer
Parameters Mode.
2. Turn the dial (E) until ‘9:HA’ appears.
3. Press the dial (E).
4. Set the high altitude value by turning the dial.
Refer to table.
5. Press the dial again (E) to save the setting.
6. Press the ‘Modes button’
for one second, to Save the number and to go back to initial status.
E