Menu - Pentair MT125 Installation And User Manual

Menu

POOL MAX (65°F-104°F):
SPA MAX (65°F-104°F):
Select F (Fahrenheit) or C (Celsius) to display change the display of the heat settings. Select US or Metric units.
UNITS:
Use Up/Down button to scroll through the last five heater errors.
HISTORY:
Number of heater on/off cycles.
CYCLES:
Total number of hours the heater has spent heating the water.
RUNTIME:
Displays the current Stack Flue Sensor temperature.
SFS TEMP:
Displays the current flame sensor status (Normal or Low).
FLAME:
BACKLITE: Time-Out Enabled/Disabled:
The LCD backlight will turn off after two minutes of no control panel key pad activity. After three
Time-Out Enabled:
minutes of no key pad activity the LCD will turn off. When the LCD and/or the Backlight are off, any button press will
turn the LCD and backlight back on. After that, the control panel buttons are in normal operating mode.
Time-Out Disabled:
Set the heater address (1-16) for automation control.
HTR ADDR:
BP-VALVE (By-pass Valve): Enabled/Disabled
By-pass Valve Description
The purpose of the automatic BPVALVE (bypass valve) feature is to by-pass the flow of water from the heater
inlet to the heater outlet when the heater is not firing. There is a minimal amount of water flow through the
heater when the heater is not firing, and a maximum water flow through the heater when the heater is firing.
For more information about Manual By-Pass and Automatic By-Pass valves, see page 14-15.
By-Pass Enabled
When the BYPASS VALVE feature is enabled and there is a call for heat, the by-pass valve closes to allow
water to flow through the heater. It takes 30 seconds for the bypass valve to rotate to the closed position. This allows
the valve to complete rotation so there is sufficient water flow and pressure to prevent the water pressure switch from
trigging an error. When the call for heat ends, the water flow continues through the heat exchanger for a cool down
period of one minute. After the cool down period, the by-pass valve will rotate so that water no longer flows through
the heater.
By-Pass Disabled
When the BYPASS VALVE feature is disabled, there is no automatic switching of the by-pass valve when the heater
starts a heating cycle. The valve stays in the position and water always flows through the heater.
English, Spanish or French
LANGUAGE:
View the current heater firmware version.
VERSION:
460906 Rev. D 8/2020
The maximum heater operating temperature for the pool.
The maximum heater operating temperature for the spa.
The LCD and backlight will stay on continuously and will not timeout.
MASTERTEMP 125 Pool and Spa Heater Installation and User's Guide
Section 2. Operations
47