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Jandy
®
JXi
™
Gas-Fired Pool and Spa Heater | Installation & Operation Manual
To Maintain Pool or Spa Heat:
(Requires additional external relay and wiring and
must be setup in installer configuration)
POOL or SPA > MENU > MAINTAIN POOL HEAT
or MAINTAIN SPA HEAT (UP or DOWN for Pool or
Spa Mode) > MENU (display current temperature
setpoint) > UP or DOWN to change temperature
setpoint
NOTE: Five (5) seconds of inactivity will store the new
temperature setpoint.
MAINTAIN POOL HEAT
MAINTAIN SPA HEAT
SET: 80°F
If connected, the Maintain Heat mode monitors
the pool water temperature 24 hours a day by
turning the pool pump on and sampling the water
temperature. When the water temperature drops
below the programmed temperature set point, the
controller automatically starts heating the pool.
8.6 Performing Seasonal Shutdown
Complete shutdown instructions are as follows.
Refer to Figure 21. For winterization instructions, see
Section 9.3
• Set temperature thermostat controls to their
lowest setting and turn off the controller. Make
sure the display shows OFF.
• Turn off all electrical power to the heater at the
junction box.
• Remove the top panel of the heater.
• Turn the gas valve control switch to OFF.
• Shut off the external gas supply valve to the
heater.
• Replace the top panel.
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