Balboa Water Group BP 50Hz - Manual (Page 40)

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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.
5/02/13
Removing the Heater Assembly from a BP Spa System
Note: Be careful when removing a heater assembly from
a spa plumbing system. Water may splash out under
pressure.
Water under pressure in the plumbing may splash out, and onto
the system’s electronic board. Do not remove the system door
until the water has been drained from the heater assembly
housed in the system.
Turn off the main power. 1.
Close off the 2. slice valves (or, ball valves) adjacent to the
heater assembly.
Once the valves are closed, slowly crack the heater 3.
assembly end tubes until water flows out. If the connectors
are on too tight, it may be necessary to loosen the Phillips
screws that hold the connectors together. Once the water
has been drained, continue.
Remove the system door cover. 4.
Remove the nuts securing the 5. heater wires to the heater
assembly’s terminal connectors. Be sure to use a
supporting end wrench on the lower nut. (Upper nut is
3/8"; lower nut is 1/4".) If a lower end wrench is not used
to hold the terminal in a fixed position when removing or
installing the upper nut, excessive torque will transfer
to the terminal connector. The result will most likely be a
damaged terminal.
Remove both 3/8" nuts that secure the element in place. 6.
Remove the 7. heating assembly sensor wires and replace if
necessary.
Remove the heater assembly. 8.
Reverse the procedure to 9. reinstall the heater assembly.
Note:
UÊ Loctite should be applied to heater terminal threads
UÊ Heater terminal nuts require 30 - 35 in/lbs torque.
UÊ Heater element retainer nuts are also tightened to 30 - 35
in/lbs torque.
Remove both nuts that secure the element in place.
Locking nuts are in same location on BP models
30 - 35 in/lbs. torque when reinstalling.
Avoid damaging the post. Reinforce the post, especially
when reinstalling the upper nut on a new heater.
Apply Loctite when reinstalling.