Fill It Up; Priming The Pumps - Master Spas Trainer 12 Owner's Manual

Fill it up!

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 24 hour 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 flowing 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 follow the
instructions shown for removing air locks in the installation instructions section of this manual.
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.
DO NOT DIVE.
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