Page 14
Jandy
®
JXi
™
Gas-Fired Pool and Spa Heater | Installation & Operation Manual
WARNING
Do not store any chemicals, cleaners, or other corrosive material near combustion air openings or in the room. Avoid locating appliance vents in
the vicinity of combustion air openings. Failure to prevent corrosive materials from mixing with combustion air can result in reduced heater life and
unsafe heater operation.
3.3.2 Direct Venting
If you plan to supply the intake air directly to the heater, refer to Sections 3.3.3 and 3.3.4.
Align the orifi ce adapter with the orifi ce tabs and
secure with four screws.
Air Orifice
Air Orifice
Adapter
75 mm
(3") PVC
Not Included
e
f
c
d
Marker
For indoor installations the exhaust must
also be converted. Order part number
R0731100 and follow the instructions in
The JXi Installation and Operation
Manual H0574300, section 3.3 “Indoor
and Outdoor Shelter Exhaust
Conversion”.
Dry fi t the 3 in (75 mm) PVC tubing into the orifi ce
adapter. Mark screw hole locations with a pen.
Remove and drill pilot holes in the PVC. Fit the PVC
into the orifi ce adapter, align the holes and secure
with four screws. In the case of the JXI400 (399,000
BTU models), up to a 6 in (152 mm) length of 3 in
(75 mm) PVC can be used before increasing it to 6 in
(152 mm) diameter PVC pipe.
Reinstall the air orifi ce and air hoses.
Install the new rear panel over the PVC and
secure with four screws.
3.3.4 Exterior Venting and Air Intake
The JXi must be vented to the outdoors. It must not
be vented in common with any other appliance, even
if that appliance is of the condensing type. Common
venting can result in severe corrosion of the JXi or
of the other appliances or their venting, or escape of
combustion product gases through such appliances
or vents. Do not vent the JXi to a fi replace chimney
or building chase.
Combustion air ducting, when provided, must not be
shared with any other appliance or with another JXi.
Doing so may result in fl ow of air through the other
appliances instead of directly from the outdoors.
The combustion air intake and vent outlet must
be located exterior to the building and in the
same pressure zone - i.e. both through the roof or
both through a side wall. The vent terminal must
be located in accordance with local codes, as
applicable, and in accordance with the following:
3.3.3 Direct Air Intake
In certain applications it may be necessary to supply
intake air directly to the heater. You will need to
order and install the direct air conversion R-Kit
R0724600.
A total equivalent length of 65 ft (20 m) of 3 in (75
mm) PVC tubing can be used on the JXI200 and JXI
260 models. A total equivalent length of 65 ft (20
m) of 6 in (152 mm) PVC tubing can be used on the
JXI400 models. Please be aware that each elbow
used will account for 12 ft (3.6 m) of length.
Gas Valve
Hose Port
Air Pressure
Switch
Hose Port
Air Orifice
Air Orifice
Screen
b
a
For ease of access, remove the rear and top panels.
Loosen the two screws securing the air orifi ce
and screen in place. Remove the air pressure switch
and gas valve hose from the air orifi ce.
Remove the air orifi ce, separate and dispose of
the orifi ce screen.
TIP: When removing the air hoses
form the air orifi ce, mark the hoses
with tape or a marker to help with
reassembly.
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