Priming The Pumps - Balboa Water Group TP500 User Manual

Fill it up!
Preparation and Filling
Fill the 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 starts
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 "Jets"
or "Aux" buttons.
If the 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 "Jets" button once to start Pump 1 in low-speed and then again to switch to
high-speed. Also, push the "Jets 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 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 spa and call for service.
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 the "Warm" or "Cool" button. 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
water 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.
Manufactured under one or more of these patents. U.S. Patents: 5332944, 5361215, 5550753, 5559720, 5,883,459, 6253227, 6282370, 6590188, 6976052,
6965815, 7030343, 7,417,834 b2, Canadian Patent: 2342614, Australian patent: 2373248 other patents both foreign and domestic applied for and pending. All
material copyright of Balboa Water Group.
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42355 rev A 06/05/20