Zodiac JXi 200 User manual

H0552400_REVC
WARNING
IF THESE INSTRUCTIONS ARE NOT FOLLOWED EXACTLY,
A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY
DAMAGE, PERSONAL INJURY, OR DEATH.
FOR YOUR SAFETY: This product must be installed and serviced by a contractor who is licensed and qualified in pool equipment by the jurisdiction in which
the product will be installed where such state or local requirements exists. In the event no such state or local requirement exists, the installer or maintainer
must be a professional with sufficient experience in pool equipment installation and maintenance so that all of the instructions in this manual can be followed
exactly. Before installing this product, read and follow all warning notices and instructions that accompany this product. Failure to follow warning notices and
instructions may result in property damage, personal injury, or death. Improper installation and/or operation can create carbon monoxide gas and flue gases
which can cause serious injury, property damage, or death. For indoor installations, as an additional measure of safety, Zodiac Group Australia Pty, Ltd.
strongly recommends installation of suitable carbon monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces. Improper
installation and/or operation will void the warranty.
• DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
• DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE
• DO NOT USE OR STORE FLAMMABLE MATERIALS NEAR THIS APPLIANCE
• DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION
WHAT TO DO IF YOU SMELL GAS
• Immediately switch off main gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
INSTALLATION AND
OPERATION MANUAL
Zodiac JXi™
Gas-Fired Pool and Spa Heater
Models 200, 370
®Rainbow Pool Products
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: [email protected]
Web: www.rainbowpoolproducts.com.au

Page 2 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Table of Contents
Section 1. General Information ....................... 3
1.1 Technical Assistance .......................................... 3
1.2 Warranty ............................................................. 3
1.3 Consumer Information and Safety...................... 3
1.4 General Operation Description........................... 3
 6SHFL¿FDWLRQV ..................................................... 4
1.6 Dimensions......................................................... 4
 &HUWL¿FDWLRQ&RGHVDQG6WDQGDUGV..................... 5
1.8 Heater Components ........................................... 5
Section 2. Getting Started................................ 6
2.1 Package Contents .............................................. 6
2.2 Required Equipment........................................... 7
Section 3. Location Requirements.................. 8
3.1 Clearances ......................................................... 8
3.2 Outdoor Installation ............................................ 9
3.3 Indoor and Outdoor Shelter Installation............ 10
Section 4. Gas Connections.......................... 13
4.1 Supply Gas Requirements ............................... 13
4.2 Inlet Gas Pressure Test .................................... 14
4.3 Gas Offset Pressure Test ................................. 15
4.4 Special Precautions for LP Gas........................ 16
Section 5. Water Connections....................... 17
5.1 Pump Sizing ..................................................... 18
5.2 Plumbing Connections ..................................... 19
5.3 Water Pressure Switch Adjustment. ................. 20
5.4 Check Valve Installation ................................... 21
5.5 Pressure Relief Valve Installation..................... 21
5.6 Auxiliary Components,
Chlorinators, Ozone Generators
and Sanitizing Chemicals ................................. 22
Section 6. Electrical Connections................. 22
6.1 Service Access ................................................. 22
6.2 Bonding ............................................................ 23
6.3 Input Voltage Conversion 120V AC .................. 23
Section 7. Optional Remote Controls........... 24
7.1 Connecting to a Remote
Pool-Off-Spa Selector (3-Wire Connection) ..... 24
7.2 Connecting to a Remote TSTAT
(2-Wire Connection) ......................................... 24
7.3 Connect to an AquaLink®
or “Smart” Communication via RS-485 ........... 25
Section 8. Final Installation Check ............... 26
8.1 Operating Instructions ...................................... 26
8.2 Important Safety Information ............................ 26
8.3 First-Time Start-Up Procedure ......................... 26
8.4 To Turn Off Gas To The Heater ........................ 27
8.5 Normal Operation ............................................. 27
8.6 Operating the Controller ................................... 29
8.7 Shutting Down the Heater ................................ 30
Section 9. Maintenance.................................. 31
9.1 Water Chemistry............................................... 31
9.2 Swimming Pool Energy Saving Tips................. 32
9.3 Winterizing........................................................ 32
9.4 Spring Start-up ................................................. 32
9.5 Inspection and Service ..................................... 33
Section 10. Troubleshooting ........................... 34
10.1 Common Problems........................................... 34
10.2 Service Diagnostic Messages .......................... 35
10.3 Ignition Control LED Service Codes................. 35
Section 11. Professional Service
and Maintenance .......................... 36
Section 12. Spare Parts.................................... 36
12.1 Major Components ........................................... 36
12.2 Cabinet Assembly Spare Parts List
and Exploded Parts Diagram ........................... 37
12.3 Heat System Spare Parts List
and Exploded Parts Diagrams.......................... 38
12.4 Water System Spare Parts List
and Exploded Parts Diagrams.......................... 40
12.5 Electrical System Spare Parts List
and Exploded Parts Diagrams ......................... 41

Page 3
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Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Section 1. General Information
This manual provides installation and operation
instructions for the Zodiac JXi pool and spa gas heater
product line.
Read the installation and operation instructions
completely before proceeding with the
installation.
1.1 Technical Assistance
Web: www.zodiac.com.au Phone: [phone]
1.2 Warranty
This heater is sold with a limited factory warranty.
Details are included with this heater or for full terms and
conditions please go to www.zodiac.com.au.
All warranty issues should be resolved with your
Zodiac dealer or place of purchase. Claims must
include the heater serial number and model (this
information can be found on the rating plate),
installation date, and name of the installer. Shipping
costs are not included in the warranty coverage.
The warranty does NOT cover damage caused by
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caused by improper water chemistry will NOT be
covered by the warranty.
NOTE: Keep this manual in a safe place for future reference when
inspecting or servicing the heater.
1.3 Consumer Information and Safety
The heater is designed and manufactured to provide
many years of safe and reliable service when
installed, operated, and maintained according to
the information in this manual and the installation
codes referred to throughout. Be sure to read
and comply with all warnings and cautions.
WARNING
Improper installation or maintenance can cause nausea or asphyxi-
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severe injury, or death. For indoor installations, as an additional
measure of safety, Zodiac Group Australia Pty, Ltd. strongly recom-
mends the installation of suitable Carbon Monoxide detectors in
the vicinity of this appliance and in any adjacent occupied spaces.
WARNING
The following “Safety Rules for Hot Tubs,” recommended by the
U.S. Consumer Product Safety Commission, should be observed
when using the spa. Consult heater operation and installation
instructions for water temperature guidelines before setting tem-
perature.
•Spa or hot tub water temperature should never exceed 40°C
(104°F). 38°C (100°F) is considered safe for a healthy adult. Spe-
cial caution is recommended for young children.
•The drinking of alcoholic beverages before or during spa or
hot tub use can cause drowsiness which could lead to uncon-
sciousness, and subsequently result in drowning.
•Pregnant women take note! Soaking in water above 38.5°C
)FDQFDXVHIHWDOGDPDJHGXULQJWKH¿UVWWKUHHPRQWKV
of pregnancy (which could result in the birth of a brain-damaged or
deformed child). If pregnant women are going to use a spa or hot
tub, they should make sure the water temperature is below 38°C
(100°F) maximum.
•The water temperature should always be checked with an ac-
curate thermometer before entering a spa or hot tub. Temperature
controls may vary by as much as 1C°/1F°.
•Persons with a medical history of heart disease, diabetes, cir-
culatory or blood pressure problems should consult their physician
before using a hot tub or spa.
•Persons taking any medication which induces drowsiness
(e.g., tranquilizers, antihistamines, or anticoagulants) should not
use spas or hot tubs.
•Prolonged immersion in hot water can induce hyperthermia.
•Hyperthermia occurs when the internal body temperature
reaches a level several degrees above the normal body tem-
perature of 37°C (98.6°F). Symptoms include dizziness, fainting,
drowsiness, lethargy, and an increase in the internal body tempera-
ture. The effects of hyperthermia include:
•Lack of awareness of impending hazard
•Failure to perceive heat
•Failure to recognize need to leave spa
•Physical inability to leave spa
•Fetal damage in pregnant women
•Unconsciousness resulting in a danger of drowning
1.4 General Operation Description
The blower draws air and fuel through specially designed
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located inside the sealed combustion chamber. Water
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EXUQHUWUDQVIHUULQJWKHKHDWWRWKHZDWHU([KDXVWJDVHV
are then directed through a duct where it is vented to the
atmosphere.

Page 4 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
1.5 6SHFL¿FDWLRQV
SUPPLY GAS APPLIANCE RATINGS
Please also refer to the appliance data plate
INSTALLATION LOCATION NATURAL GAS (NG) CERTIFIED INDOOR/OUTDOOR
LIQUID PROPANE (LP)* CERTIFIED INDOOR / OUTDOOR / COVERED SHELTER
GAS PIPE HEATER GAS VALVE
CONNECTION†
NATURAL GAS (NG) 20 mm (3/4”) NPT
LIQUID PROPANE (LP) 20 mm (3/4”) NPT
INLET GAS SUPPLY PRESSURE
Min Max
NATURAL GAS (NG) 1.13 kPa (4.5” WC) 2.6 kPa (10.5” WC)
LIQUID PROPANE (LP) 1.0 kPa (4.0” WC) 3.5 kPa (14.0” WC)
GAS VALVE OFFSET PRESSURE‡NATURAL GAS (NG) -.05 kPa (-.2” WC) -.05 kPa (-.2” WC)
LIQUID PROPANE (LP)
WATER PIPE/HEATER CONNECTION NATURAL GAS (NG) • PVC/CPVC 50mm (2”) unthreaded
• Zodiac threaded union
LIQUID PROPANE (LP)
WATER FLOW RATE
Min Max
NATURAL GAS (NG) 113 lpm
(30 gpm)
378 lpm
(100 gpm)
LIQUID PROPANE (LP)
WORKING WATER PRESSURE
Min Max
NATURAL GAS (NG) 13.8 kPa
(2 psi)
344.7 kPa
(50 psi)
LIQUID PROPANE (LP)
EXHAUST VENT CONNECTION SIZE§NATURAL GAS (NG) • Model 200: 150 mm (6”)
• Model 370: 150 mm (6”)
LIQUID PROPANE (LP)
ELECTRICAL SUPPLY NATURAL GAS (NG) • 230 VAC, 50Hz
(Optional: 120 VAC, 50/60 Hz. See Appendix A.)
LIQUID PROPANE (LP)
HIGH ALTITUDE
NATURAL GAS (NG) • The JXi heater has a special venturi-type combustion system which
self compensates for changes in barometric pressure up to 1372 m
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RYHUPƍDERYHVHDOHYHO
LIQUID PROPANE (LP)
* Indoor installation is not recommended for liquid propane heaters.
Review Special Precautions for liquid propane heaters (Section 4.4). $Q\FKDQJHVWRWKHKHDWHUJDVFRQWUROVDLURUL¿FHJDVRUL¿FHVZLULQJRU
improper installation may void the warranty. If change is required to any of
the above; contact your local Zodiac distributor visit www.zodiac.com.au
or call technical support at 1300 763 021.
†For gas pipe size requirements see Section 4
‡ All readings must be taken while the heater is operating
§ Use type B double-wall gas vent.
1.6 Dimensions
Figure 1. General Dimensions
Dimensions are identical
for all heater models
Versa Plumb Inlet
Inlet
13 cm
(5.1")
14 cm
(5.6")
26 cm
(10.13")
47 cm
(18.5")
56 cm (22.1")
40.6 cm
(16")
55 cm
(21.6")
90 cm (35.4")
63 cm
(24.9")
67 cm
(26.5")

Page 5
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Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
1.7 &HUWL¿FDWLRQ&RGHVDQG6WDQGDUGV
CERTIFIED IAPMO R&T Oceana
COMPLIANT Standard for ‘Gas Pool Heaters’, AS 4560
APPLICABLE NATIONAL INSTALLATION
AND COMMISSIONING CODE(S)
Standard for Gas Installations, AS/NZS 5601
Pay particular attention to the chapter addressing Venting of Equipment
All Zodiac Gas heaters must be installed in accordance with the local building and installation codes as per the utility or Authority Having
Jurisdiction (AHJ). In the absence of local codes, please refer to the latest edition of the national codes for installation:
JXi pool and spa heaters meet or exceed the requirements of energy conservation regulations such as those in regions that have disallowed the
use of continuously lit pilot type ignition sources.
1.8 Heater Components
Header
d
e
Front
Rear
a
j
Monitors temperature at the exhaust flue. If
excessive temperatures are detected,
combustion will stop and a fault will be displayed.
Flue Temperature Sensor
a
Indicates a safety control equipped to protect internal
components and extend the life of the heater.
bcfghi
Controls gas flow into the burner. Enables flow when the
temperature control calls for heat and all safety controls enable
operation. It also regulates gas pressure to -.05 kPa (-2” Water Column)
below the air pressure at the blower inlet. Necessary pressure regulation
cannot be accomplished with common (positive pressure) gas valves.
Gas Valve
g
When current is passed through the ceramic
material of the igniter it will achieve temperatures
great enough to initiate combustion of the air/fuel mixture.
Hot Surface Igniter
b
Provides energy for ignition, monitors flame quality
and controls the gas valve. Upon call for heat, the
blower is activated to purge the combustion chamber. Electrical power is
then applied to the hot surface igniter. When ignition temperature is
attained, the gas valve opens and ignition occurs. If stable flame is detected
the igniter will power down. If stable flame is not detected the control
system will close the valve to prevent further gas release. If a total of 3
ignition attempts fail an ignition fault is displayed.
Ignition Control
c
Rated at 43°C (109°F), 52°C (126°F) and
66°C (151°F) will prevent water of excessive
temperatures from being discharged from the heater. If the switch at the
header inlet, or if either switch at the heat exchanger outlet senses exces-
sive temperature, the gas valve will close and combustion will stop.
High Limit Switches
d
Senses water temperature by
means of a thermistor. Heater
will operate to attain and maintain the water temperature according to the
heater settings. Two separate thermostat settings are supported, typically
used to set pool and spa temperatures.
Pool/Spa Water Temperature Control
e
Senses whether or not water is available to
the heater by measuring back pressure at the
header inlet. If insufficient pressure is detected, the display will indicate a
“Check Flow” fault and combustion will stop.
Water Pressure Switch
f
Draws in air and fuel gas
creating an air/fuel mixture that
is passed through the burner for combustion. The fan will operate for
several seconds before flame initiation and after the flame is extinguished
to purge the combustion chamber for a clean burn and to expel any
residual exhaust gas.
Combustion Blower and Air Orifice
h
Monitors the vacuum (negative pressure) within
the blower housing. This switch verifies that air is
flowing through the combustion system by sensing pressure. If air flow is
inadequate, combustion will stop and a fault will be displayed.
Air Pressure Switch
i
The VersaFlo Integrated Bypass allows
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bypass assembly is moved to the bypass position, allowing the water flow
within the heater header to bypass the heat exchanger and return directly to
the pool.
VersaFlo™ Integrated Bypass
j

Page 6 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Section 2. Getting Started
Install the JXi in accordance with the procedures in this
manual, local codes and ordinances, and in accordance
with the latest edition of the appropriate national code.
See Section 1.7.
If the heater is to be operated in below freezing
conditions it should be installed in a protected outdoor
shelter. See Section 3.3
$OOJDV¿UHGSURGXFWVUHTXLUHFRUUHFWLQVWDOODWLRQWR
HQVXUHVDIHRSHUDWLRQ7KHUHTXLUHPHQWVIRUSRROKHDWHUV
include the following:
• )LHOGDVVHPEO\LIUHTXLUHG
• $SSURSULDWHVLWHORFDWLRQFOHDUDQFHVDQGÀRRULQJVHH
Section 3
• 6XI¿FLHQWFRPEXVWLRQDQGYHQWLODWLRQDLU
• Properly sized gas meter and piping
• Proper electrical wiring
• 6XI¿FLHQWZDWHUÀRZ
This manual provides the information needed to meet
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installation procedures before continuing the installation.
2.1 Package Contents
Before completely unpacking the unit please
inspect carton for damage. In addition please
check the carton label to ensure that you have the
FRUUHFWVSHFL¿FDWLRQVIRU\RXUDSSOLFDWLRQ
Item Description Qty.
1 JXi Heater 1
2 Versa Plumb™ Sweep Elbow 1
3 50 mm (2”) Universal Union Tailpiece 2
4 50 mm (2”) Universal Union Cap 1
5 50 mm (2”) Universal Union O-ring 3
6 50 mm (2”) Universal Union Nut 3
1
2
3
4
56
NOTE:
1 EA of item 4, item 5 and
item 6 will come pre-installed at
the horizontal manifold inlet.

Page 7
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Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
2.2 Required Equipment
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2.2.1 Tools
Safety Eye Wear Gloves Phillips
Screwdriver Flathead Screwdriver Pipe Wrench
Adjustable
Wrench 5 mm (3/16”)
Hex Key
Multi Grips Digital
Differential
Manometer
Voltage Meter PVC Pipe Cutter Power Drill Tape Measure
2.2.2 Materials Supplied by Installer
Please ensure that all materials used during the
installation are in accordance with local codes or the
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\RXKDYHDQ\TXHVWLRQVUHJDUGLQJWKHPDWHULDOVWKDW
need to be used during this installation please call the
Zodiac customer service center at 1300 763 021.
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YHQWLQJDQGH[KDXVWFRQYHUVLRQPDWHULDOV
which are outlined in detail in Section 3.3
NOTE: Required materials may differ from the materials listed. Be
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installation.
GAS SUPPLIES ELECTRICAL
SUPPLIES PLUMBING SUPPLIES
Appropriately sized
Gas Piping
230 VAC, 50 Hz PVC Piping
120 VAC, 50/60 Hz
Manual Gas Shut
Off Valve
*Conduit Elbow/
Conduit Connector.
PVC Cement
Gas Union *Flexible Conduit 7HÀRQ7DSH
Cap *Wire Nuts
Leak Solution
1.6 mm (1/16”)
Hose “T”
3.18 mm (1/8”) -
1.6 mm (1/16”)
Barbed Adapter
1.6 mm (1/16”)
Flexible Hose
*Electrical components only required when converting heater to 120 V input.

Page 8 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Section 3. Location Requirements
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YHQWFRQ¿JXUHGIRURXWGRRULQVWDOODWLRQ7KHKHDWHULV
GHVLJQHGDQGFHUWL¿HGSHU$6IRUERWKRXWGRRUDQG
indoor installation in Australia and for indoor and outdoor
installation of natural gas only heaters in New Zealand It
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only, and is intended for use with permanently installed,
swimming pools only. It should be installed on a level,
stationary, non-mobile location and should not be
subjected to intentional movement, vibration, etc. which
could negatively affect the plumbing, wiring, and venting
of the heater. For installation indoors, be sure to follow all
the instructions provided in this instruction manual. See
Section 3.3 for details.
Location of the heater below or above the pool water level
affects operation of its water pressure switch. See Section
5.3 for more information.
NOTE: If the heater is to be operated in below freezing conditions it
should be installed in a protected outdoor shelter.
CAUTION
When pool equipment is located below the pool surface, a leak from
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Group Australia Pty, Ltd., cannot be responsible for such water loss
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3.1 Clearances
The heater must be installed in a location that allows
clearances for maintenance and inspection. Minimum
distances from combustible surfaces must also be
maintained. All criteria given in the following sections
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standards. However, each installation must also be
evaluated, taking into account prevailing local conditions
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public access areas.
Service Clearance: 91 cm (36") from top of heater for
removal of top panel.
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Combustible Surfaces: (DFKKHDWHUIDFHUHTXLUHVD
cm (6") clearance from combustible surfaces. Although
QRWSUHIHUUHGWKHKHDWHULVGHVLJQFHUWL¿HGIRULQVWDOODWLRQ
on combustible surfaces for operation. However, do not
install the heater on carpet.
Figure 2. Clearances
Service clearance required
at front or rear main panel
*Clearance distance
from exhaust vent
required per AGA B149.1, section 4.14.2.
*See Figure 3 for details
Combustible
Surface
150 mm (6")
Service
Clearance
TOP: 915 mm (36")
FRONT: 610 mm (24")
NOTE:
Clearances are manufacturer’s
tested values. These are given as minimum
values. Where local and national codes
apply, and if the clearance values specified
in the applicable codes are different than
those listed in this manual, use the greater
value to ensure safest operation.

Page 9
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
3.2 Outdoor Installation
Locate the heater:
• On a level solid surface.
• P¶IURPLQQHUSRROHGJHXQOHVVVHSDUDWHGE\
a permanent solid barrier, i.e. a wall or fence.
• In an open area, not under a deck or other structure.
• Away from doors windows or louvres that connect
in any way to occupied or inhabited areas of the
building.
• Away from rainwater runoff.
• Away from potential sprinkler water intrusion.
• 6RWKDWWKHWRSRIWKHKHDWHULVDWOHDVWP¶EHORZ
any overhang.
• So that the top surface of the heater is at least 1 m
¶DERYHDQ\IRUFHGDLULQOHWZLWKLQP¶
WARNING
Do not install the heater with the top of the vent assembly within
1.22 m (4') horizontally, 1.22 m (4’) below or less than 300 mm (1')
above any opening into a building. Local codes and installation
requirements may vary.
Figure 3. Location Requirements
min. 3.5 m (12’)min. 3.5 m (12')
unless the heater is separated
from the pool by a solid fence, wall
or other permanent solid barrier.
Locate the heater on a level surface in an open,
unroofed area at least 1.0 m (3
' ) from gas meter, 500
mm (1.5 ' ) from an electrical meter or fuse box (prohibit-
ed area extends to the ground below meter or fuse
box), and 150 mm (6
" ) from any drain pipe or soil pipe.
Do not install the heater under a deck.
The heater must be installed on a level, solid, and firm surface or platform. This
heater is not intended for any mobile installations. Although it is always preferable to
install the heater on a non-combustible surface, the JXi-series has been certified by
IAPMO-R&T Oceana to applicable national standards for installation on solid, firm,
and level combustible surfaces. DO NOT INSTALL ON CARPET.
Do not locate the
heater below or adjacent
to any doors, windows,
louvres, grills, etc., which
connect in any way with
an inhabited area of a
building, even though
the access might be
through another struc-
ture (e.g., a garage or
utility room).
If the heater is installed close to a structure, protect it from rain
water runoff with rain gutters on the roof or other measures.
Be sure to divert rain water runoff away from heater
The area under an
overhang must be
open on three sides to
prevent combustion
gases from being
diverted into living
areas through doors,
windows, or gravity
inlets
Install the heater so that there is at least 500 mm (1.5
' ) of
clearance between the bottom of the overhang to the top of the
heater exhaust vent.
Install the heater so that the top of the vent is at least 1.5 m (5')
from any building opening including windows, doors, air inlets
including pool spa blowers or any other opening into the
building with the exception of sub-floor ventilation.
The top surface of the heater must be at least 1.0 m (3') above any
forced air inlet, or intake ducts located within 3.0 m (10') horizontally.
Required exhaust
distance:
•500 mm (1.5')
from any return
wall, building
surface or
external corner.
•150 mm (6")
from all other
combustible
surfaces.
Do not locate the heater near sprinkler
systems that could spray water on it.
Water from sprinklers can damage
controls and electronic components.

Page 10 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
3.3 Indoor and Outdoor Shelter Installation
=RGLDFGRHVQRWHQFRXUDJHLQVWDOODWLRQRI/3OLTXLG
propane) gas heaters indoors. Always consult with the
authority having jurisdiction (AHJ) along with all
applicable national and local codes before installing a LP
heater indoors. Please be sure to refer to Section 4.2.
7KHKHDWHULV&HUWL¿HGE\,$302572FHDQDIRU
indoor installations. Please keep in mind the clearances
from Section 3.1 when selecting an installation location.
You will also need to make considerations for intake
combustion air see Section 3.3.1DQGH[KDXVWYHQWLQJ
see Section 3.3.3,QDGGLWLRQZKHQSRROHTXLSPHQWLV
installed indoors, appropriate containment measures and
drains should be considered for the prevention of
SURSHUW\GDPDJHLQWKHHYHQWRIDQHTXLSPHQWOHDN
NOTE: An outdoor shelter is an unoccupied enclosure which does
not communicate directly with occupied areas.
Zodiac Group Australia Pty, Ltd., does not recommend outdoor
shelter installations that depend on internal air for combustion.
3.3.1 Combustion Intake Air Supply
Figure 4. Indoor and Outdoor Shelter Installation
Minimum pitch .635 cm (.25”) per 30.5 cm (1’) of pipe:
Horizontal Duct
4
2
1.5Screens or Metal Louvers
Wood Louvers
Multiply
opening by
if air
passes through:
Minimum Net
Free Open Area*
Combustion Openings
Gas appliance in
a room or
enclosure other
than a plant
room.
Direct
to outside** 600 cm2
1200 cm2
300 cm2
600 cm2
1110 cm2
2220 cm2
555 cm2
1110 cm2
Via an
adjacent room
MODEL
200 370
Gas appliance
in a plant room.
Direct
to outside
Via an
adjacent room
Single wall flue clearance to
combustible per AS/NZS 5601.
75 mm (3”) from unprotected
surfaces, 50 mm (2”) protected
combustible surfaces or ensure
that temp rise limit does not
exceed 50°C (122°F) above
ambient, typically 25°C (77°F).
For garage installation, heater base must be 46 cm (18”) above the floor and vent directly outside.
= “A” / 20
= “A” / 20
“A”
Listed Vent Cap
Use Approved Rook Jack
Storm Collar
End of flue shall be:
ƔAt least 500 mm (20”) from the nearest
part of the roof.
ƔPP´IURPWKHQHDUHVWSDUWRIDQ\
chimney.
ƔIf the roof is to be used for personal or
public use i.e. roof top patio/bar etc., flue
shall be adequately supported and At least 2
m (6.5’) above the roof level and 500 mm
(20”) above any surrounding parapet.
* AS5601 indicates two permanent openings, each with
the minimum free ventilation area indicated in the table.
** Direct to outside means any of the following options,
provided the ventilation path is unobstructed by building
material or insulation.
Ɣ'LUHFWO\WKURXJKDQRXWVLGHZDOOSUHIHUHGRSWLRQ
Ɣ7KURXJKDQRXWVLGHZDOOEXWRIIVHW
ƔLQWRDFDYLW\YHQWLODWHGWRRXWVLGH
ƔLQWRDQXQGHUIORRUYHQWVSDFHYHQWLODWHGWRRXWVLGH
Ɣ,QWRDURRIVSDFHYHQWLODWHGWRRXWVLGH
As outlined in the latest edition of ANSI
VWDQGDUG=1)3$WKHKHDWHU
location must be properly vented to provide
VXI¿FLHQWDLUVXSSO\IRUSURSHUFRPEXVWLRQ
Please also consult Australian standards,
$6DQG$61=6
When combustion air is supplied directly
through an outside wall, each opening
VKRXOGKDYHDPLQLPXPIUHHDUHDRI
PPVTXDUHLQ2) per 1.2 kW input of the
total input rating of all appliances in the
enclosed area. If combustion air must pass
through horizontal ducts, each opening
VKRXOGKDYHDPLQLPXPIUHHDUHDRI
PPVTXDUHLQ2) per 1.2 kW input of the
total input rating of all appliances in the
enclosed area. Details can be found in
Figure 4.
The “Minimum Net Free Open Area”
information from Figure 4 is not applicable
LQLQVWDOODWLRQVZKHUHH[KDXVWIDQV
or blowers of any type are used. Any
HTXLSPHQWZKLFKH[KDXVWVDLUIURPWKH
room where the heater is installed can
deplete the combustion air supply or reverse
the natural draft action of the venting
V\VWHP7KLVFRXOGFDXVHÀXHSURGXFWVWR
accumulate in the room. Additional air
must be supplied to compensate for such
H[KDXVW&RQVXOWDSURIHVVLRQDOHQJLQHHU
WRHQVXUHWKDWLQVWDOODWLRQVZKHUHH[KDXVW
fans or blowers are used are designed and
installed in accordance with all applicable
local and national installation codes.
In addition, the heater must be completely
isolated and protected from any source of
corrosive chemical fumes or corrosive
vapors (i.e chlorine or hydrochloric acid).
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.

Page 11
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
3.3.2 Direct Air Intake
In certain applications it may be necessary to supply
intake air directly to the heater. You will need to order
DQGLQVWDOOWKHGLUHFWDLUFRQYHUVLRQ5.LW5
A total
HTXLYDOHQW
length of
Pƍ
RIPP
Ǝ39&
tubing can
be used to
bring the intake air
directly to the blower input.
Please be aware that each
elbow used will account for
PƍRIOHQJWK
• For ease of access, remove the rear and top
panels.
a
/RRVHQWKHWZRVFUHZVVHFXULQJWKHDLURUL¿FHDQG
VFUHHQLQSODFH5HPRYHWKHDLUSUHVVXUHVZLWFKDQGJDV
YDOYHKRVHIURPWKHDLURUL¿FH
b
5HPRYHWKHDLURUL¿FHVHSDUDWHDQGGLVSRVHRI
WKHRUL¿FHVFUHHQ
c
Align the
RUL¿FHDGDSWHU
with the
RUL¿FHWDEV
and secure
with four
screws.
d
'U\¿WWKH
PPƎ
39&WXELQJ
LQWRWKHRUL¿FH
adapter. Mark
screw hole
locations with
a pen.
5HPRYHDQG
drill pilot
holes in the
39&)LWWKH39&LQWRWKHRUL¿FHDGDSWHUDOLJQWKHKROHVDQG
secure with four screws
e
5HLQVWDOOWKHDLURUL¿FHDQGDLUKRVHV
f,QVWDOOWKHQHZUHDUSDQHORYHUWKH39&DQGVHFXUHZLWK
four screws.
3.3.3 Exhaust Venting
When the JXi heater is installed indoors or in an outdoor
shelter the vent pipe sizing must be in accordance with
WKHVSHFL¿FDWLRQVOLVWHGLQTable 1.
CODES*
US National Fuel Gas code ANSI Z223.1 (NFPA 54)
AUS
IAPMO Oceana Standard for Gas Pool Heaters,
AS4560, AS5601 and/or Authority Having
Jursidiction (AHJ)
STATIC
PRESS. STACK TEMP. TERMINATION LOCATION
PIPE SIZING MATERIAL
MODEL PIPE
SIZE Aluminum
inner pipe.
Galvanized
outer pipe.
Negative High Roof
200 150
mm
370 150
mm
*Ensure that you are referencing the latest edition and pay special
attention to the chapter addressing “venting of equipment”
For each elbow installed, reduce the run length by 3.7 m (12’)
Table 1. Vent Pipe sizing Requirements
WARNING
Vent pipe materials, sizing, and installation must be as required
by the National Fuel Gas Code NFPA 54/ANSI Z223.1 or Australia
Standard for Gas Pool Heaters, AS4560, AS/NZS 5601 Gas Instal-
lations as applicable by local code. Undersized pipe can result in
inadequate venting and oversize pipe can result in vent condensa-
tion. Improper selection of vent pipe material, incorrect sizing of the
pipe, and incorrect installation of vent piping can result in release of
combustion products to the indoors. This can cause serious injury or
death by Carbon Monoxide poisoning or asphyxiation.
WARNING
Improper installation or maintenance can cause nausea or asphyxia-
WLRQIURPFDUERQPRQR[LGHLQÀXHJDVHVZKLFKFRXOGUHVXOWLQVHYHUH
injury or death. For indoor installations, as an added measure of
safety, Zodiac strongly recommends installation of suitable
carbon monoxide detectors in the vicinity of this appliance and in
any adjacent occupied spaces.
Incorrect design and installation of heater vents and ducts can result
in personal injury, damage to property, or death. To avoid such
KD]DUGVWKHKHDWHUPXVWEHLQVWDOOHGRQO\E\DTXDOL¿HGSURIHVVLRQDO
service technician.
• STATIC PRESSURE - NEGATIVE: Appliance
operates with a negative vent static pressure, a vent
JDVWHPSHUDWXUHWKDWDYRLGVH[FHVVLYHFRQGHQVDWH
production and will vent vertically terminating at the
roof. Termination must pass through a properly
installed and approved roof jack, a properly sized
storm collar and a listed vent cap. See Figure 4.
• Do not terminate heater vents near air conditioning or
DLUVXSSO\IDQVZKLFKFRXOGSLFNXSH[KDXVWÀXH
SURGXFWVVXFKDVFDUERQPRQR[LGHDQGRWKHU
KD]DUGRXVHIÀXHQWDQGUHWXUQWKHPLQVLGHWKH
building.
• 9HQWSLSHW\SHDQGPDWHULDOPXVWEHFDUHIXOO\
selected and depends on the type of installation.
• Do notORFDWHWKHYHQWWHUPLQDOZKHUHH[KDXVWÀXH
products could strike against building materials and
cause degradation.
Gas Valve
Hose Port
Air Pressure Switch
Hose Port
Air Orifice
Air Orifice Screen
ba
Air Orifice
Air Orifice
Adapter
75 mm
(3") PVC e
f
c
d
Marker

Page 12 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
• 9HQWRSHQLQJVKRXOGEHZHOODZD\IURPODQGVFDSLQJ
RURWKHUREVWUXFWLRQVWKDWZRXOGSUHYHQWIUHHDLUÀRZ
to and from vent terminal.
• Do not terminate vent under decks, stairs, or car ports.
• Do not use the appliance to support the vent pipe.
• 9HQWSLSLQJPXVWEHVXSSRUWHGZLWKQRORZVSRWVRU
sagging which could allow condensate to collect.
• ,QVWDOOWKHYHQWSLSHVRLWFDQH[SDQGDQGFRQWUDFW
freely with temperature changes.
• Do not run the heater vent into a common vent with
any other appliance.
• ,WLVUHFRPPHQGHGWKDWYHQWUXQVRYHUP¶
be insulated to reduce condensation and use a
condensate trap in the vent run close to the heater,
especially in cold climate installations.
• Do Not Do not install the heater in a sidewall
WHUPLQDWHGFRQ¿JXUDWLRQRUUXQH[KDXVWYHQWLQJLQ
DSULPDULO\KRUL]RQWDOFRQ¿JXUDWLRQ7KLVKHDWHULV
intended for vertical vented applications only.
• Do Not incorporate more than three elbows.
Horizontal runs of vent piping may be used but must
QRWH[FHHGPIWLQOHQJWKDQGPXVWDOZD\V
PDLQWDLQWKHPLQLPXPSLWFKVORSHIRUDQ\KRUL]RQWDO
UXQVDVVSHFL¿HGLQFigure 4.
3.3.4 Indoor and Outdoor Shelter Exhaust Conversion
WARNING
Improper installation or maintenance can cause nausea or asphyxiation
IURPFDUERQPRQR[LGHLQÀXHJDVHVZKLFKFRXOGUHVXOWLQVHYHUHLQMXU\
or death. For indoor installations, as an added measure of safety, Zodiac
strongly recommends installation of suitable
carbon monoxide detectors in the vicinity of this appliance and in any adja-
cent occupied spaces.
Incorrect design and installation of heater vents and ducts can result in
personal injury, damage to property, or death. To avoid such hazards, the
KHDWHUPXVWEHLQVWDOOHGRQO\E\DTXDOL¿HGSURIHVVLRQDOVHUYLFHWHFKQLFLDQ
7KHKHDWHUFDQEHIXOO\FRQYHUWHGWRLQGRRUH[KDXVWW\SH
In order to complete the conversion you will need to
RUGHUH[KDXVWFRQYHUVLRQ5.LW5
a
5HPRYHWZRVFUHZVVHFXULQJWKHH[KDXVWJULOOWRWKH
H[KDXVWJULOOEDFNSODWH
b
5HPRYHH[KDXVWJULOO
c
5HPRYHWKHWZRVFUHZVVHFXULQJWKHUDLQVKLHOG
WRWKHH[KDXVWEDFNSODWH
d
5HPRYHWKHUDLQVKLHOG
e
5HPRYHWKHUHPDLQLQJWZRVFUHZVVHFXULQJWKH
H[KDXVWEDFNSODWHWRWKHH[KDXVWRXWOHW
f5HPRYHWKHH[KDXVWEDFNSODWH.
g
Using two #10 thread cutting screws secure the vent
DGDSWHUIURP5.LW5WR
WKHH[KDXVWRXWOHW
h
If needed, install an
appropriate vent pipe increaser to
accommodate the correct pipe
size from Table 1. Secure to the
vent adapter using the screw
clamp.
Double check that there are no
possible leak paths between joints.
,IDOHDNSDWKLVLGHQWL¿HGRUVXVSHFWHGLWFDQEHVHDOHG
XVLQJUHG579&)UDWHGVLOLFRQHDGKHVLYH
When using parts or materials from other manufacturers
please be sure to follow the manufacturers instructions
completely to ensure harmonious function.
g
h
Vent Elbow
Increaser
Vent Adapter
Exhaust Outlet
a
a
e
b
f
c
d
Exhaust Grill
Exhaust Grill Backplate
Rain Shield
Exhaust Outlet

Page 13
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
3.3.5 Precautions Against Common Venting
6HHNWKHDVVLVWDQFHRID5HJLVWHUHG3URIHVVLRQDO(QJLQHHU
for proper design of a common venting system.
Zodiac does not recommend using a common vent to vent
multiple appliances through a common duct. However, if
no other option is deemed available by the installer, each
appliance must have its own vent temperature limit
switch. All vent limit switches must be wired in series so
DVWRSUHYHQWDQ\DSSOLDQFHIURP¿ULQJLQWKHHYHQWRID
blocked vent. An outside draft inducer must be installed
to pull and create negative pressure in the vent system.
5HIHUWR$16,=RU$XVWUDOLDQVWDQGDUGVDSSOLFDEOH
WR*DV3RRO+HDWHUV$6$61=6IRUPRUH
information on common venting multiple appliances.
Do not connect vent systems of different categories to the
same venting system.
3.3.6 Inspection and Replacement of Existing Vent System with New Components
:KHQUHSODFLQJDQH[LVWLQJSRROKHDWHUZLWKWKH-;LLWLV
recommended that a new appropriate venting system is
LQVWDOOHGZLWKWKHQHZKHDWHU+RZHYHULIWKHH[LVWLQJ
venting system must be used, be sure to carefully inspect
WKHH[LVWLQJV\VWHPWRHQVXUHWKDWLWLVLQJRRGFRQGLWLRQ
DQGDSSURSULDWHIRUWKH-;LKHDWHU5HSODFHDQ\SDUWVWKDW
are not in serviceable condition before completing the
installation.
Section 4. Gas Connections
Gas piping installation must be in accordance with the
latest edition of ANSI Z223.1 and the Australia standard
LQVWDOODWLRQV$61=6DORQJZLWKDOOORFDOFRGHV
• Pressure Testing : The heater must be isolated
from the gas supply piping system by closing the
individual manual shut off valve during any pressure
testing of the gas supply piping system at test
SUHVVXUHJUHDWHUWKDQRUHTXDOWRN3DSVL
CAUTION
Permanent damage to the gas valve will occur if the installation
procedures are not followed correctly.
WARNING
CONVERTING THIS HEATER FOR USE WITH ANY OTHER
FUEL TYPE IS NOT RECOMMENDED BUT, WHEN NECESSARY,
SHOULD ONLY BE PERFORMED BY A LICENSED AND QUALI-
FIED PROFESSIONAL, AND ONLY AFTER CONTACTING ZODIAC
GROUP AUSTRALIA FOR THE PROPER INSTRUCTIONS AND
CONVERSION KIT.
All questions should be directed to the Zodiac customer service
center at 1300 763 021
4.1 Supply Gas Requirements
• 5HIHUWR$61=6IRUFRUUHFWJDVLQOHWSLSLQJ
length from the gas meter to the heater.
• &RQ¿UPFRUUHFWVXSSO\SLSHVL]HDQGVXSSO\SUHVVXUH
before proceeding with the installation.
• Check the gas meter to make sure it will supply
enough gas to the heater and any other appliances
using the same gas supply. If unsure, contact your
ORFDOJDVXWLOLW\WRFRQ¿UP
• It is critical that the incoming gas supply pressure at
WKHKHDWHULVZLWKLQWKHPD[LPXPDQGPLQLPXP
SUHVVXUHUHTXLUHPHQWVDVRXWOLQHGLQTable 2. If the
range of acceptable supply pressure is not provided,
WKHJDVVXSSO\V\VWHPWRWKHKHDWHUPXVWEHPRGL¿HG
WRPHHWSUHVVXUHUHTXLUHPHQWV
• &RQVLGHUSLSH¿WWLQJVZKHQGHWHUPLQLQJJDVSLSH
VL]LQJ)RUHYHU\HOERZXVHGDGGPPƍWR
straight pipe length.
• Install a manual gas shutoff valve outside the heater
body for service and safety. Never install the shutoff
valve inside the body of the heater.
• :KHUHUHTXLUHGE\ORFDOFRGHLQVWDOODVHGLPHQWWUDS
condensate fall and gas union in accordance with
$XVWUDOLDVWDQGDUG6HHFigure 5
• Do not use a restrictive gas cock.
ATTENTION
'RQRWXVHÀH[LEOHDSSOLDQFHFRQQHFWRUVRQDQ\JDVFRQQHFWLRQV
unless the connector is AGA approved for outdoor installation, and is
marked with the BTUH capacity (which must be equal to or greater
than the heater rated input) and the type of gas (Natural or LP). Also,
DQ\ÀH[LEOHFRQQHFWRUVVXFKDV&667EXULHGXQGHUJURXQGPXVWEH
FHUWL¿HGIRUXQGHUJURXQGLQVWDOODWLRQDQGPHHWDOODSSOLFDEOHFRGHV
3OHDVHQRWHXVHRIÀH[LEOHFRQQHFWRUVWLOOUHTXLUHVWKHLQVWDOODWLRQRI
a sediment trap. See Figure 5.
NOTE: The gas line from the meter is usually larger than the
gas valve. Therefore, you will need to reduce connecting pipe as
necessary. Make this reduction as close to the heater as possible.
PIPE
NIPPLE
SEDIMENT TRAP
Image is for reference of a trap/fall
assembly, the specifics and location
of your trap/fall assembly may differ.
Please ensure that your installation
complies with local authorities and
Australian standard 5601.
Figure 5. Manual Shut-off Valve and Sediment Trap

Page 14 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
4.2 Inlet Gas Pressure Test
Before operating the heater it is necessary to test the
input gas pressure to ensure that it falls within the
UHTXLUHGUDQJHDVRXWOLQHGLQTable 2.
INLET GAS
PRESSURE
NG
(NATURAL GAS)
LP
(LIQUID PROPANE)
KPA INCHES
W.C. KPA INCHES W.C.
MAX 2.6 10.5 3.5 14
MIN 1.13 4.5 1.13 4.5
• All readings must be made while heater is operating.
• Relying on any reading taken while heater is off may result in
SRRUSHUIRUPDQFHDQGGLI¿FXOW\LQRSHUDWLRQ
Table 2. Supply Gas Input Pressure Requirements
• 9HULI\WKHPDQXDOJDVVKXWRIIYDOYHLVRSHQ
• 5HPRYHWKHKHDWHUUHDUSDQHOWRH[SRVHWKHJDVYDOYH
NOTE: The rear panel is the main body panel closest to the gas
inlet. This may appear to be the front panel if the user interface was
moved to accommodate a left side water connection. For instruc-
tions on moving the user interface see 5.2.1.
aLocate the inlet pressure tap on the gas valve.
b
8VLQJDVPDOOÀDWKHDGVFUHZGULYHULGHDOO\
width or smaller), turn the tap plug 2-3 turns counter
clockwise.
CAUTION
Do not back the tap screw entirely out of the inlet pressure tap. The
screw is small and easily lost. A lost screw needs to be replaced
before the heater can operated.
c
Connect positive manometer lead to the inlet
pressure tap.
• Inlet gas pressure must be taken while the heater, and
if possible, all other gas burning appliances supplied
by the same gas delivery system, are operating.
• ,IWKHJDVVXSSO\SUHVVXUHLVOHVVWKDQUHTXLUHGFKHFN
for an undersized pipe between the meter and the
KHDWHUDUHVWULFWLYH¿WWLQJRUDQXQGHUVL]HGJDV
meter. If needed contact the local gas utility company
for assistance.
• 2QFHSURSHULQOHWSUHVVXUHKDVEHHQFRQ¿UPHGVKXW
off gas supply.
• 5HPRYHPDQRPHWHU
• Tighten the tap plug securely. DO NOT
29(57,*+7(1
WARNING
Failure to secure or replace the pressure tap plugs will allow gas to
leak from the valve into the heater body which could result in prop-
erty damage, severe injury, or death.
• Before operating the heater, test the gas supply
system and all connections for leaks using a soap
solution. 'RQRWXVHDQRSHQÀDPHWRWHVWIRUOHDNV
ab
c
INLET ELBOWINLET ELBOW
OUTLET ELBOW
INLET PRESSURE TAP
MANOMETER HOSE
(FROM POSITIVE PORT)
INLET PRESSURE TAP
a

Page 15
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
4.3 Gas Offset Pressure Test
Before operating the heater it is necessary to test the
offset gas pressure to ensure that it falls within the
UHTXLUHGUDQJHRIN3$:&N3D
(0.1" WC). This reading must be taken with the heater
running using a digital differential manometer.
• 9HULI\WKHPDQXDOJDVVKXWRIIYDOYHLVRSHQ
• 5HPRYHWKHKHDWHUUHDUSDQHOWRH[SRVHWKHJDV
valve.
NOTE: The rear panel is the main body panel closest to the gas
inlet. This may appear to be the front panel if the user interface was
moved to accommodate a left side water connection. For instruc-
tions on moving the user interface see 5.2.1.
4.3.1 Connect the Digital Differential Manometer.
a
Connect a tee to the hose running from
the fan inlet port on the blower to the gas
valve air pressure connection.
b
Connect one leg of the tee to the gas
valve air pressure connection.
c
Connect the third leg of the tee to the
positive (high pressure) side of the digital
differential manometer.
dLocate the outlet pressure tap.
e
8VLQJDVPDOOÀDWKHDGVFUHZGULYHU
(ideally .100" width or smaller), turn the tap
plug 2-3 turns counter clockwise.
CAUTION
Do not back the tap screw entirely out of the inlet
pressure tap. The screw is small and easily lost. A
lost screw needs to be replaced before the heater
can operated.
a
fConnect a hose from the outlet pressure
tap to the negative (low pressure) side of the
digital differential manometer.
• Start the heater and record the gas offset
pressure.
• Measurement should be N3$
:&N3D:&
• If the offset pressure is incorrect an
adjustment can be made. See Section 4.3.2
for details
• ,IQRDGMXVWPHQWLVUHTXLUHGUHPRYH
manometer.
• 5HFRQQHFWWKHKRVHIURPWKHIDQLQOHWSRUWWRWKHJDV
valve air pressure connection.
• Tighten the tap plug securely. DO NOT
29(57,*+7(1
• Before operating the heater, test the gas supply
system and all connections for leaks using a soap
solution. 'RQRWXVHDQRSHQÀDPHWRWHVWIRUOHDNV
WARNING
Failure to secure or replace the pressure tap plugs will allow gas to
leak from the valve into the heater body which could result in prop-
erty damage, severe injury, or death.
ON
OFF
UNITS
ZERO
a
c
OUTLET PRESSURE TAP
FAN INLET PORT
f
NEGATIVE
(Low Pressure Port)
_
POSITIVE
(High Pressure Port)
+
DIGITAL
MANOMETER
“T” JOINER

Page 16 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
4.3.2 Gas Offset Pressure Adjustment
If the offset pressure is incorrect an adjustment can be
PDGHWREULQJWKHRIIVHWSUHVVXUHZLWKLQWKHUHTXLUHG
range. Prior to making any gas valve adjustments:
• Ensure that the inlet gas pressure from Section 4.2 is
ZLWKLQWKHVSHFL¿HGUDQJH
• Ensure that the manometer has been connected in
accordance to steps a-f in Section 4.3.1.
• (QVXUHWKDWDOOKRVHVEDUEHG¿WWLQJVSOXJVDQGFDSV
are securely in place and not leaking.
• With the heater running read and record the offset
pressure displayed on the manometer. If an
DGMXVWPHQWLVVWLOOUHTXLUHG
• 5HPRYHWKHRIIVHWDGMXVWPHQWVHDOLQJFDSXVLQJD
7WRU[GULYHUWRH[SRVHWKHWRU[DGMXVWPHQWVFUHZ
below.
• 8VLQJD77RU[GULYHUWXUQWKHSODVWLFDGMXVWPHQW
screw as follows:
To Increase Offset Pressure:
7XUQWKHDGMXVWPHQWVFUHZWXUQFORFNZLVH
To Decrease Offset Pressure:
7XUQWKHDGMXVWPHQWVFUHZWXUQFRXQWHUFORFNZLVH
• Once the proper gas offset pressure has been
achieved. Securely reinstall the cap.
• Shut down the heater at the user interface.
• 5HPRYHPDQRPHWHU
• Before operation, test the complete gas supply system
and all connections for leaks using a soap solution.
'RQRWXVHDQRSHQÀDPHWRWHVWIRUOHDNV
WARNING
Failure to secure or replace the pressure tap plugs will allow gas to
leak from the valve into the heater body which could result in prop-
erty damage, severe injury, or death.
CAUTION
Some leak test solutions (including soap and water) may cause
corrosion or stress cracking. Rinse the piping with water after testing.
b
de
f
INLET ELBOW
OUTLET ELBOW OUTLET PRESSURE TAP
OUTLET PRESSURE TAP
MANOMETER HOSE
(TO NEGATIVE PORT)
MANOMETER HOSE
(FROM POSITIVE PORT)
AIR PRESSURE
CONNECTION
OFFSET
SEALING
CAP
4.4 Special Precautions for LP Gas
This appliance is approved for use with LP (Propane) and
Natural Gas in Australia only. It is approved for use with
Natural gas only in New Zealand. Under the same
HQYLURQPHQWDOFRQGLWLRQVOLTXLGSURSDQH/3JDVLV
more dense or heavier than air and will more readily
FROOHFWRUSRROLQHQFORVHGDUHDVLIDGHTXDWHYHQWLODWLRQLV
not provided. It is not recommended to install LP gas
heaters in enclosed areas such as pits. Locate heaters a
VDIHGLVWDQFHIURP/3JDVF\OLQGHUVDQG¿OOLQJ
HTXLSPHQW&RQVXOWWKH$XVWUDOLDQ1HZ=HDODQG
6WDQGDUG$61=6DQGJDVLQVWDOODWLRQVWDQGDUG
$61=6DQGDQ\RWKHUORFDOFRGHVDQG¿UH
SURWHFWLRQDXWKRULWLHVDERXWVSHFL¿FLQVWDOODWLRQ
restrictions in your area.
For ALL installations the combustion air openings
requirements and AS/NZS 5601 MUST be followed
for safe and proper operation.

Page 17
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Section 5. Water Connections
Install pool system components with connections as
illustrated in Figure 6$Q\FRQ¿JXUDWLRQRWKHUWKDQDV
illustrated in Figure 6 can affect the operation of the
water pressure switch. Locating the heater above or
below the pool water surface can also affect operation of
the water pressure switch.
NOTE: When pool equipment is located below the pool surface,
=RGLDFLVQRWUHVSRQVLEOHIRUDQ\ODUJHVFDOHZDWHUORVVÀRRGLQJRU
damage caused by a leak.
CAUTION
The pool equipment must be protected from back-siphoning of wa-
ter. If there is any chance of back-siphoning, provide a check valve
EHWZHHQWKHSRRODQGWKH¿OWHUSXPSLQOHW
Figure 6. 7\SLFDO:DWHU3LSLQJ&RQ¿JXUDWLRQ
MAIN DRAINS*
(Suction Outlet)
MANUAL BYPASS VALVE
HEATER
FILTER
CHECK VALVE
(Always install a corrosion resistant check
valve when any sanitation equipment,
including erosion feeders and salt
chlorination systems are installed,
see section 5.4
for more details)
PUMP
POOL/SPA
3 WAY VALVE
SPA DRAIN*
(Suction Outlet)
SKIMMER
SPA RETURN
POOL
RETURN
a.
a.
MANUAL BY-PASS DETAIL:
USE WHEN FILTRATION RATE
EXCEEDS 379 lpm (100 gpm).
REFER TO THE MANUFACTURER’S
RECOMMENDATIONS IF USING A
DIFFERENT BRAND HEATER.
*All pool suction outlets and plumbing
must be properly installed in compliance
with applicable entrapment protection
standards such as AS2610.2
®Rainbow Pool Products
PO Box 2388, Mansfield Qld 4122
Telephone STD 61-7-3849 5385
Facsimile STD 61-7-3849 5384
Email: [email protected]
Web: www.rainbowpoolproducts.com.au

Page 18 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
5.1 Pump Sizing
7KHÀRZE\SDVVZLWKLQWKHKHDWHUPDQLIROGZLOO
DFFRPPRGDWHÀRZVUDWHVGHOLYHUHGWRWKHKHDWHUIURPD
PLQLPXPRI/LWUHVSHUPLQXWHOSPJSPWRD
PD[LPXPÀRZRIOSPJSP
CAUTION
The system water pump must be capable of providing no less than
OSPJSPRIÀRZWKURXJKWKHKHDWHU)ORZUDWHVDWOHVVWKDQ
114 lpm (30 gpm) may cause nuisance operation causing the heater
to turn off or damage to the heater.
MODEL MIN LPM (GPM) MAX LPM (GPM)
JXI 200 114 (30) 379 (100)
JXI 370 114 (30) 379 (100)
Table 3. Recommended Flow Rate Adjustment
Figure 7. Head Loss Chart
27.6
34.5
41.4
48.3
55.2
62.1
JXi 200 MJ Heater
JXi 370 MJ Heater
0.0
6.9
13.8
20.7
s
ign Pressure Drop (kPa)
De
s
Flow Rate
(lpm)
JXi VersaFlo™ Bypass*
* This heater comes equipped with the VersaFlo™
Integrated Bypass. For details please review the
ŝŶĐůƵĚĞĚŝŶƐƚĂůůĂƟŽŶĂŶĚŽƉĞƌĂƟŽŶŵĂŶƵĂů
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
Design Head Loss (meters head)
2
2.5
3
3.5
4
4.5
5
5.5
6
0.0
.5
1
1.5
5.1.1 Manual Bypass Valve
A manual bypass valve is to be installed in any system in
ZKLFKWKHSXPSÀRZH[FHHGVOSPJSP
Connect ball valve between water inlet and outlet. See
inset “a.” in Figure 6.
•$GMXVWWKHYDOYHWREULQJWKHÀRZUDWHZLWKLQWKH
acceptable range. See Table 3.
•5HPRYHWKHYDOYHKDQGOHWRDYRLGWDPSHULQJ
5.1.2 Pump Sizing for New Pool Construction:
When sizing a pump for the system, the head loss for all
system components must be added together when
GHWHUPLQLQJWKHGHVLJQÀRZUDWH&RPSRQHQW³+HDG/RVV
DW)ORZ´FXUYHVDUHDYDLODEOHIURPHTXLSPHQW
manufacturers.
NOTE: ,QRUGHUWRSURSHUO\HVWDEOLVKKHDGORVVDWÀRZIRUD¿OWHU
UHPHPEHUWKDWD³GLUW\´¿OWHUFDQW\SLFDOO\DGGN3DSVLRI
additional head loss, 7 extra meters (22 ‘) of head. This must be
considered when sizing a pump for a new pool system.
5.1.3 Pump Sizing for Replacement in an Existing Pool:
If the JXi heater replaces a different model of heater,
GHWHUPLQHLIWKHH[LVWLQJSXPSLVFDSDEOHRISURYLGLQJWKH
PLQLPXPÀRZRIOSPJSP-;LKHDWHUVDUHKLJK
HI¿FLHQF\KHDWHUV+HDWHUVW\SLFDORIWKLVFRQVWUXFWLRQ
may have higher head loss characteristics than the one
being replaced.
CAUTION
+HDWHUIDLOXUHGXHWRLQVXI¿FLHQWZDWHUÀRZLVQRWFRYHUHGXQGHUZDU-
ranty. See measurements in the Head Loss Chart. See Figure 7.

Page 19
ENGLISH
Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
5.2 Plumbing Connections
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5.2.1 Reversing Plumbing Connections
The JXi heater is shipped with the manifold on the right
side by default. If necessary the water connections can be
orientated to the left side by rotating the top panel of the
appliance.
NOTE: The electrical raceway, transformer, PIB, Ignition control
and voltage selector board are all accessed through the default front
panel. Special considerations should be made for service clearance,
see Figure 2EHIRUHD¿QDOORFDWLRQDQGRULHQWDWLRQIRUWKHDSSOLDQFH
is determined.
• Turn off all power to the heater at the breaker.
• Ensure that the pump is off and will remain off for
the duration of the procedure.
a
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top panel to the heater body.
b
Lift heater top panel. Be careful not to damage or
apply undue stress to the user interface wiring.
c
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• Place heater top panel securely on heater body.
• Secure with the four screws removed in step “a”.
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5.2.2 Water Inlet Piping
There are two options for water inlet connections on the
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rates as outlined in Section 5.1 and if necessary make
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installation of a manual bypass valve as outlined in
Section 5.1.1
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Figure 8.
The sweep elbow also provides the advantage of its
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sensor.
The side inlet is positioned at a 26 cm (10.13") center
height providing an ideal height for replacement or new
construction plumbing.
• Turn off all power to the heater at the breaker.
• Turn off main gas supply to heater.
• Ensure that the pump is off and will remain off for
the duration of the procedure.
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proper seating of the union tailpiece and o-ring.
Make adjustments to pipe length or positioning as
needed.
• Clean all adhesion surfaces with an appropriate NSF®
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• Slide the union nut onto the cut pipe length. or
sweep elbow. Ensure proper nut orientation with
threads directed towards the heater manifold. See
Figure 9.
• Use approved NSF adhesive to glue the tailpiece onto
the cut pipe, or sweep elbow.
NOTE: Zodiac recommends Weld-On® 724TM PVC to
CPVC Cement to glue Schedule 40 PVC.
Sweep
Elbow Inlet
Outlet
Check Valve
Filter
Pump
Heater
Sweep
Elbow
Figure 8. Versa Plumb Heater Inlet
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• Secure union nut over tailpiece hand tight only. Be
sure that the o-ring is properly seated. Do not
overtighten. Do not use pipe joint or tape.
b
a
c
1
8
0
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Page 20 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual
Sweep ElbowUnion Nut
Union Nut
Union Tailpiece
Union Tailpiece
Cut Pipe
Cut Pipe
O-Ring
O-Ring
O-Ring
Drain Cap
Top Inlet Manifold Orifice
Side Inlet Manifold Orifice
Manifold Outlet
Figure 9. Inlet Piping
• If using the sweep elbow. Use approved NSF
adhesive to glue the sweep elbow into the tailpiece
and onto the cut pipe.
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paying special care to ensure proper seating of the
union tailpiece o-ring.
• Install the union nut and drain cap with o-ring at the
unused inlet on the heater manifold. Be sure that the
o-ring is properly seated. Secure hand tight only. Do
not overtighten. Do not use pipe joint or tape.
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• Turn on pump and inspect carefully for leaks.
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WARNING
To avoid an electrical shock hazard, which can result in serious
injury or death, ensure that all electrical power to the system is
turned off before approaching, inspecting or troubleshooting any
leaking valves or plumbing that may have caused other electrical
devices in the surrounding area to get wet.
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attempt to assemble, disassemble or adjust the
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Starting the pump while there is any pressurized
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blown off, which can cause death, serious
personal injury or property damage.
5.3 Water Pressure Switch Adjustment.
The water pressure switch is located inside the heater
jacket on the water connection side
See Section 1.8, item “f”.
The switch is preset at the factory for activation at
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adjusted If the heater is installed:
• Below the surface level of the pool
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• Where the pressure is measured at 6.9 kPa (1 psi) or
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CAUTION
The water pressure switch should be adjusted to turn the heater off
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damage the appliance. Adjust the switch to turn the heater off, not on.
NOTE: It is recommended that a Pressure Release Valve (PRV) be
installed prior to taking any of the steps below.
Location of the heater above or below the pool water
surface can also affect the operation of the switch. The
factory installed switch can accommodate elevations of
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below pool water surface. If the heater water connections
are outside this range, consult your local Zodiac
representative for recommendations.
• Set the heater control to “OFF”.
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heater body.
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pressure switch. See Figure 10.
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Pressure
Switch
Rotate clockwise with fingers
until heater turns off. Then rotate
couterclockwise 1/4 turn to set.
Leads
Adjustment
Sprocket
Figure 10. Water Pressure Switch Adjustment
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voltmeter.
• If the switch does not close, check that all valves are
open to the heater and that there are no restrictions in
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your pump as outlined in Section 5.1.
• Once an operational and correctly sized pressure
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either POOL or SPA.
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slowly clockwise until the heater shuts off.
• Slowly turn the pressure switch adjustment sprocket
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come back on. See Figure 10.