Page 35
ENGLISH
Installation and Operation Manual
|
Jandy
®
LXi
™
Model Pool and Spa Heater by Zodiac
®
7.6.1 Lighting the Heater
Lighting instructions are as follows:
1. Turn off all electrical power to the heater at the
main junction box.
2. Remove the heater door and turn the heater gas
valve to OFF.
3. Wait 5 minutes before trying to start the heater.
4. Turn the gas valve control knob counterclock-
wise to ON. See Figure 32.
5. Replace the heater door.
6. Turn on electrical power to the heater.
7. Turn on the filter pump.
8. Set the heater control to the "SPA" mode. If the
temperature of the water exceeds the thermostat
setting it is necessary to increase the thermostat
setting to exceed the water temperature. Adjust
the thermostat setting (desired temperature) to be
greater than the water temperature. The igniter
lights the burner when the thermostat calls for
heat.
9. Set the time clock, if one is installed.
7.6.2 Shutdown
Complete shutdown instructions are as follows:
1. Set both temperature controls to their lowest set-
ting.
2. Turn off the control. Make sure the display shows
that the heater is off.
3. Turn off all electrical power to the heater at the
junction box.
4. Open the heater door and turn the gas valve knob
clockwise to off.
5. Shut off the external gas supply valve to the
heater.
7.7
Adjusting the Water Pressure
Switch
CAUTION
The water pressure switch should be adjusted to
turn the heater off when the pump is off. Setting the
switch to close at too low of a flow can damage the
appliance. Adjust the switch to turn the heater off,
not on.
ATTENTION
Le manocontact de pression d’eau doit être réglé
de façon à ce que l’appareil cesse de fonctionner
si la pompe s’arrête. Si le manocontact est réglé
pour se fermer lorsque le débit d’eau est trop faible,
l’appareil risque de s’endommager. Réglez le mano-
contact pour qu’il arrête l’appareil, et non pour qu’il
le mette en marche.
The pressure switch is preset at the factory for
activation at 2 psi (14 kPa). Do not adjust the pressure
switch if the heater is installed more than 15 feet (4.57
m) below the pool surface. Consult your local Zodiac
representative for recommendations.
On some installations, the piping from the heater
to the pool is very short. The back pressure could be
too low to trigger the pressure switch. If this happens,
it may be necessary to install a directional fitting or
elbows where the return line enters the pool. This will
increase back pressure enough for the heater to operate
properly.
Make sure the pool filter is clean before mak-
ing any pressure switch adjustment. A dirty filter will
restrict the water flow and the pressure switch cannot
be adjusted properly.
To adjust the pressure switch, refer to Figure 33
and proceed as follows:
1. Set the heater control to the "OFF" mode.
2. Remove the side panel above the front header to
access the water pressure switch.
3. Start the filter pump and confirm by means of a
voltmeter that the pressure switch closes (if the
switch fails to close, replace it with a switch that
has a lower minimum setting).
4. Set the heater control to either
POOL
or
SPA
.
Heater should start.
5. With your fingers, turn the adjustment sprocket
very slowly clockwise until the heater goes off.
Figure 32. Gas Valve
