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Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®
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Installation and Operation Manual
by the ignition control, test point 12 and test point 10,
with the igniter energized. This voltage will be applied
only during igniter heat up or trial for ignition. Even
if voltage has been confirmed at the end of the safety
circuit, the “trial for ignition” sequence is imposed
by the ignition control. This sequence consists of a
15 second period of pre-purge, a 40 second period for
heat-up of the igniter and a seven (7) second trial for
ignition. During this last 47 seconds there is voltage
between test point 13 and test point 10, or between test
point 12 and test point 10. If satisfactory ignition is
not achieved, the igniter is turned off and the system
waits for a 15 second inter-purge period. The system
may go through this cycle as many as three (3) times,
but thereafter it is “locked out” by the ignition control
for a one hour period. Additional attempts will be
made only if the call for heat is interrupted by turning
off electrical power or setting the control to “Off”
and then back to "Pool" or "Spa" or after the one hour
delay.
To trouble shoot the ignition control's igniter,
observe that the normal ignition sequence takes
place. After the 15 second pre-purge, note the voltage
between test points 13 and 10, or test points 12 and 10.
Then look for the glow of the igniter through the view
port on the right side of the combustion chamber. If
the correct voltage is detected between points 13 and
10, or points 12 and 10 during the trial for ignition but
the igniter does not glow, check the connections to the
igniter.
Check the igniter with the ohmmeter. Disconnect
the IGN120 or IGN240 terminals from the ignition
control and the connector at test point 10. Place one
lead of the meter on each wire to the igniter. The
resistance should read between 40 and 75 Ohms at
ambient air temperature. If the meter reads outside of
this range or shows an open or short circuit, replace
the igniter. If a short circuit is indicated, it is necessary
to investigate further to find if the short is from the
igniter or the flame sense circuit.
If voltage does not appear between points 13 and
10, or points 12 and 10 during the trial for ignition,
there may be a bad connection, faulty transformer, or
a short on the ignition control. Check all connections,
the transformer, and the ignition control for loose
or corroded connections or failure and replace as
necessary.
Section 11. Replacement Parts
11.1 ordering information
To order or purchase parts for the Legacy Model
LRZ electronic pool and spa heater, contact your
nearest Jandy dealer or distributor. See the Jandy web
site at www.jandy.com for the nearest service center.
If they cannot supply you with what you need, contact
Technical Support Department at (800) 822-7933.
note
To supply the correct part it is important that
you state the model number, serial number
and type of gas when applicable. This
information is on the rating plate inside the
heater.
Summary of Contents for LRZ Electronic
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