Page 28
Jandy
®
Pro Series, JXi
™
Pool & Spa Heater
2. Air Orifice
The air orifice is specific for each BTU and for fuel type. Ensure you
have the correct air orifice for the BTU size and fuel type required
by checking the part number factory-molded on the air orifice and its
color against Air Orifice Color/Markings column, Table 2.
Replace the Gas Orifice
WARNING
It is critical to verify you are installing exactly the same gas orifice as you
are removing. Improper installation and/or operation can create carbon
monoxide gas and flue gases which can cause serious injury, property
damage, or death.
The gas orifice is stamped with the heater model
number and fuel type.
Refer to the rating plate on the heater (see Figure
1) to verify the BTU and fuel type then confirm you have ordered the
correct replacement kit for the BTU and fuel type (see Table 1).
1. Turn off the electrical power to the heater.
2. Turn off the main gas supply to the heater at the meter or the
manual gas cock outside the heater.
3. Make sure the filter pump is off and will remain off for the
duration of the installation procedure.
4. If the heater is below the surface level of the water in the pool or
spa, close all shut-off valves between the heater and the pool.
5. Disconnect the gas inlet line.
6. Remove four (4) screws to take off the heater top panel
(Figure 24). Take care not to damage or abrade any of the wiring.
