Specifications

10.4.3.7 Igniter/Ignition Control Circuit
The igniter, power supply circuit board and some
terminals of the ignition control utilize 120V or
240V power and require appropriate servicing
precautions. Note that wires and terminals of
these components may be “hot” even when the
component is not operating.
WARNING
Le dispositif d’allumage, le circuit d’alimentation
électrique et certaines bornes de la commande
d’allumage utilisent une tension de 120 V ou de
240 V et exigent des précautions appropriées lors
du service d’entretien et de réparation. Notez que
les ls et les bornes de ces composants peuvent
être chauds même si le composant ne fonctionne
pas.
AVERTISSEMENT
With the igniter energized, there will be voltage of
102-132 VAC supplied by the ignition control, test point
13 and test point 10, if the heater is connected to a 120V
supply. If the heater is connected to a 240V supply, there
will be voltage of 102-132 VAC supplied 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 conrmed 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 nd if the short is from the igniter or the ame
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.
Page 40
ENGLISH
Jandy
®
Legacy™ Model LRZE Pool/Spa Heater by Zodiac
®
|
Installation and Operation Manual