Fill It Up - Master Spas Trainer 12 Owner's Manual

SWIM SPA - CONTROLS: FILL IT UP
PREPARATION AND FILLING
Fill the swim spa to its correct operating level. Be sure to open all valves and jets in the
plumbing system before filling to allow as much air as possible to escape from the plumbing
and the control system during the filling process.
After turning the power on at the main power panel, the top-side panel display will go
through specific sequences. These sequences are normal and display a variety of information
regarding the configuration of the hot tub control.
PRIMING MODE
This mode will last for 4-5 minutes or you can manually exit the priming mode after the
pump(s) have primed.
Regardless of whether the priming mode ends automatically or you manually exit the priming
mode, the system will automatically return to normal heating and filtering at the end of the
priming mode. During the priming mode, the heater is disabled to allow the priming process
to be completed without the possibility of energizing the heater under low-flow or no-flow
conditions. Nothing comes on automatically, but the pump(s) can be energized by pushing
the "Jet" buttons.
If the swim spa has a Circ Pump, it can be activated by pressing the "Light" button during
Priming Mode.
PRIMING THE PUMPS
As soon as the above display appears on the panel, push the "Jet" button once to start Pump
1 in low-speed and then again to switch to high-speed. Also, push the Pump 2 or "Aux"
button, if you have a 2nd pump, to turn it on. The pumps will now be running in high-speed
to facilitate priming. If the pumps have not primed after 2 minutes, and water is not flow-
ing from the jets in the swim spa, do not allow the pumps to continue to run. Turn off the
pumps and repeat the process. Note: Turning the power off and back on again will initiate a
new pump priming session. Sometimes momentarily turning the pump off and on will help it
to prime. Do not do this more than 5 times. If the pump(s) will not prime, shut off the power
to the swim spa and refer to page 19.
Important: A pump should not be allowed to run without priming for more than 2 minutes.
Under NO circumstances should a pump be allowed to run without priming beyond the end
of the 4-5 minute priming mode. Doing so may cause damage to the pump and cause the
system to energize the heater and go into an overheat condition.
EXITING PRIMING MODE
You can manually exit Priming Mode by pressing a "Temp" button (Up or Down). Note that
if you do not manually exit the priming mode as described above, the priming mode will be
automatically terminated after 4-5 minutes. Be sure that the pump(s) have been primed by
this time.
Once the system has exited Priming Mode, the top-side panel will momentarily display the
set temperature but the display will not show the temperature yet, as shown below. This is
because the system requires approximately 1 minute of water flowing through the heater to
determine the water temperature and display it.
DO NOT DIVE.
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