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

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

1.5 Specications ..................................................... 4

1.6 Dimensions......................................................... 4

1.7 CerticationCodesandStandards..................... 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

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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: 1300 763 021

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

improper assembly, installation, operation or eld

modication. Also, any damage to the heat exchanger

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-

ationfromcarbonmonoxideinuegaseswhichcouldresultin

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

(102°F)cancausefetaldamageduringtherstthree(3)months

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

orices, delivering a precise mixture to the burner,

located inside the sealed combustion chamber. Water

ows through the heat exchanger, which surrounds the

burner transferring the heat to the water. Exhaust gases

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 Speci cations

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

(4500′)abovesealevel.Atelevationsabove1372m(4500′),theheater

MJoutputcanbeexpectedtobereducedby4%forevery305m(1000′)

over1372m(4500′)abovesealevel.

LIQUID PROPANE (LP)

* Indoor installation is not recommended for liquid propane heaters.

Review Special Precautions for liquid propane heaters (Section 4.4). Anychangestotheheater,gascontrols,airorice,gasorices,wiring,or

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 Certi cation Codes and Standards

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

Front

Rear

Monitors temperature at the exhaust flue. If

excessive temperatures are detected,

combustion will stop and a fault will be displayed.

Flue Temperature Sensor

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

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

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

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

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

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

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

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

The VersaFlo Integrated Bypass allows

for increased hydraulic efﬁciency when

the heater is not ﬁring. When the JXi heater is not firing, a flow gate in the

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

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

All gas- red products require correct installation to

ensure safe operation. The requirements for pool heaters

include the following:

• Field assembly (if required)

• Appropriate site location, clearances and  ooring see

Section 3

• Suf cient combustion and ventilation air

• Properly sized gas meter and piping

• Proper electrical wiring

• Suf cient water  ow

This manual provides the information needed to meet

these requirements. Review all applications and

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

correct speci cations for your application.

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

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

Please ensure that the following equipment is available to the installer at the time of installation.

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

authority having jurisdiction (AHJ) requirements. If

you have any questions regarding the materials that

need to be used during this installation please call the

Zodiac customer service center at 1300 763 021.

Indoor installations will require additional

venting and exhaust conversion materials

which are outlined in detail in Section 3.3

NOTE: Required materials may differ from the materials listed. Be

suretoconrmwithalllocalandnationalcodesbeforebeginningthe

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 TeonTape

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

The JXi heater is shipped from the factory with an exhaust

vent congured for outdoor installation. The heater is

designed and certied, per AS 4560 for both outdoor and

indoor installation in Australia and for indoor and outdoor

installation of natural gas only heaters in New Zealand It

is shipped from the factory congured for outdoor use

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

anycomponentcancauselargescalewaterlossorooding.Zodiac

Group Australia Pty, Ltd., cannot be responsible for such water loss

oroodingorresultingdamage.

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

reect minimum clearances as stated in the national

standards. However, each installation must also be

evaluated, taking into account prevailing local conditions

such as wind speed and direction, proximity and height of

obstructions that may block ventilation, and proximity to

public access areas.

Service Clearance: 91 cm (36") from top of heater for

removal of top panel.

46 cm (18") from one of either the front or rear panels.

Combustible Surfaces: Each heater face requires a 15

cm (6") clearance from combustible surfaces. Although

not preferred, the heater is design certied for installation

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

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Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual

3.2 Outdoor Installation

Locate the heater:

• On a level solid surface.

• 3.5 m (12’) from inner pool edge unless separated by

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.

• So that the top of the heater is at least 1 m (3’) below

any overhang.

• So that the top surface of the heater is at least 1 m

(3’) above any forced air inlet within 3 m (10’).

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

Zodiac does not encourage installation of LP (liquid

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.

The heater is Certied by IAPMO-R&T Oceana for

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 and exhaust venting

see Section 3.3.3. In addition, when pool equipment is

installed indoors, appropriate containment measures and

drains should be considered for the prevention of

property damage in the event of an equipment leak.

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

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”

Listed Vent Cap

Use Approved Rook Jack

Storm Collar

End of flue shall be:

●At least 500 mm (20”) from the nearest

part of the roof.

● 300 mm (12”) from the nearest part of any

chimney.

● 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.

● Directly through an outside wall (prefered option).

● Through an outside wall but offset.

● into a cavity ventilated to outside.

● into an underfloor vent space ventilated to outside.

● Into a roof space ventilated to outside.

As outlined in the latest edition of ANSI

standard Z223.1 (NFPA 54), the heater

location must be properly vented to provide

sufcient air supply for proper combustion.

Please also consult Australian standards,

AS4560 and AS/NZS 5601.

When combustion air is supplied directly

through an outside wall, each opening

should have a minimum free area of 25.4

mm square (1 in2) 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

should have a minimum free area of 25.4

mm square (1 in2) 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

in installations where exhaust fans

or blowers of any type are used. Any

equipment which exhausts air from the

room where the heater is installed can

deplete the combustion air supply or reverse

the natural draft action of the venting

system. This could cause  ue products to

accumulate in the room. Additional air

must be supplied to compensate for such

exhaust. Consult a professional engineer

to ensure that installations where exhaust

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

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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

and install the direct air conversion R-Kit R0724600.

A total

equivalent

length of

15 m (50′)

of 75 mm

(3″) PVC

tubing can

be used to

bring the intake air

directly to the blower input.

Please be aware that each

elbow used will account for

3.6 m (12′) of length.

• For ease of access, remove the rear and top

panels.

Loosen the two screws securing the air orice and

screen in place. Remove the air pressure switch and gas

valve hose from the air orice.

Remove the air orice, separate and dispose of

the orice screen.

Align the

orice adapter

with the

orice tabs

and secure

with four

screws.

Dry t the

75 mm (3″)

PVC tubing

into the orice

adapter. Mark

screw hole

locations with

a pen.

Remove and

drill pilot

holes in the

PVC. Fit the PVC into the orice adapter, align the holes and

secure with four screws

Reinstall the air orice and air hoses.

Install the new rear panel over the PVC and secure with

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

the specications listed in 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

370 150

*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-

tionfromcarbonmonoxideinuegaseswhichcouldresultinsevere

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

hazards,theheatermustbeinstalledonlybyaqualiedprofessional

service technician.

• STATIC PRESSURE - NEGATIVE: Appliance

operates with a negative vent static pressure, a vent

gas temperature that avoids excessive condensate

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

air supply fans which could pick up exhaust ue

products, such as carbon monoxide and other

hazardous efuent, and return them inside the

building.

• Vent pipe type and material must be carefully

selected and depends on the type of installation.

• Do not locate the vent terminal where exhaust ue

products could strike against building materials and

cause degradation.

Gas Valve

Hose Port

Air Pressure Switch

Hose Port

Air Orifice

Air Orifice Screen

Air Orifice

Adapter

75 mm

(3") PVC e

Marker

Page 12 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual

• Vent opening should be well away from landscaping

or other obstructions that would prevent free air ow

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.

• Vent piping must be supported with no low spots or

sagging which could allow condensate to collect.

• Install the vent pipe so it can expand and contract

freely with temperature changes.

• Do not run the heater vent into a common vent with

any other appliance.

• It is recommended that vent runs over 5.5 m (18’)

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

terminated con guration or run exhaust venting in

a primarily horizontal con guration. This heater is

intended for vertical vented applications only.

• Do Not incorporate more than three elbows.

Horizontal runs of vent piping may be used but must

not exceed 4.9m (16 ft.) in length and must always

maintain the minimum pitch/slope for any horizontal

runs, as speci ed in Figure 4.

3.3.4 Indoor and Outdoor Shelter Exhaust Conversion

WARNING

Improper installation or maintenance can cause nausea or asphyxiation

fromcarbonmonoxideinuegaseswhichcouldresultinsevere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 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

heatermustbeinstalledonlybyaqualiedprofessionalservicetechnician.

The heater can be fully converted to indoor exhaust type.

In order to complete the conversion you will need to

order exhaust conversion R-Kit R0731100.

Remove two screws securing the exhaust grill to the

exhaust grill backplate.

Remove exhaust grill.

Remove the two screws securing the rain shield

to the exhaust backplate.

Remove the rain shield.

Remove the remaining two screws securing the

exhaust backplate to the exhaust outlet.

Remove the exhaust backplate.

Using two #10 thread cutting screws secure the vent

adapter from R-Kit R0731100 to

the exhaust outlet.

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.

If a leak path is identied or suspected it can be sealed

using red RTV 300° C (600°F) rated silicone adhesive.

When using parts or materials from other manufacturers

please be sure to follow the manufacturers instructions

completely to ensure harmonious function.

Vent Elbow

Increaser

Vent Adapter

Exhaust Outlet

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

Seek the assistance of a Registered Professional Engineer

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

as to prevent any appliance from ring in the event of a

blocked vent. An outside draft inducer must be installed

to pull and create negative pressure in the vent system.

Refer to ANSI Z223.1 or Australian standards applicable

to Gas Pool Heaters, AS4560, AS/NZS 5601 for more

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

When replacing an existing pool heater with the JXi, it is

recommended that a new appropriate venting system is

installed with the new heater. However, if the existing

venting system must be used, be sure to carefully inspect

the existing system to ensure that it is in good condition

and appropriate for the JXi heater. Replace any parts that

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

installations, AS/NZS 5601.1 along with all local codes.

• 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

pressure greater than or equal to 3.5 kPa (.5 psi).

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

• Refer to AS/NZS 5601.1 for correct gas inlet piping

length from the gas meter to the heater.

• Conrm correct supply pipe size and supply pressure

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

local gas utility to conrm.

• It is critical that the incoming gas supply pressure at

the heater is within the maximum and minimum

pressure requirements as outlined in Table 2. If the

range of acceptable supply pressure is not provided,

the gas supply system to the heater must be modied

to meet pressure requirements.

• Consider pipe ttings when determining gas pipe

sizing. For every elbow used add 900 mm (3′) to

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.

• Where required by local code, install a sediment trap/

condensate fall and gas union in accordance with

Australia standard 5601. See Figure 5

• Do not use a restrictive gas cock.

ATTENTION

Donotuseexibleapplianceconnectorsonanygasconnections

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,

anyexibleconnectors,suchasCSSTburiedundergroundmustbe

certiedforundergroundinstallationandmeetallapplicablecodes.

Pleasenote,useofexibleconnectorstillrequirestheinstallationof

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

required range as outlined in Table 2.

INLET GAS

PRESSURE

(NATURAL GAS)

(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

poorperformanceanddifcultyinoperation.

Table 2. Supply Gas Input Pressure Requirements

• Verify the manual gas shutoff valve is open.

• Remove the heater rear panel to expose the gas 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.

Locate the inlet pressure tap on the gas valve.

Using a small athead screwdriver (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.

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.

• If the gas supply pressure is less than required, check

for an undersized pipe between the meter and the

heater, a restrictive tting, or an undersized gas

meter. If needed contact the local gas utility company

for assistance.

• Once proper inlet pressure has been conrmed, shut

off gas supply.

• Remove manometer.

• Tighten the tap plug securely. DO NOT

OVERTIGHTEN.

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. Do not use an open ﬂame to test for leaks.

INLET ELBOWINLET ELBOW

OUTLET ELBOW

INLET PRESSURE TAP

MANOMETER HOSE

(FROM POSITIVE PORT)

INLET PRESSURE TAP

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

required range of -.05 kPA (-0.2" WC) +/- .025 kPa

(0.1" WC). This reading must be taken with the heater

running using a digital differential manometer.

• Verify the manual gas shutoff valve is open.

• Remove the heater rear panel to expose the gas

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.

Connect a tee to the hose running from

the fan inlet port on the blower to the gas

valve air pressure connection.

Connect one leg of the tee to the gas

valve air pressure connection.

Connect the third leg of the tee to the

positive (high pressure) side of the digital

differential manometer.

dLocate the outlet pressure tap.

Using a small athead screwdriver

(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.

Connect 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 -.05 kPA (-0.2"

WC) +/- .025 kPa (0.1" WC).

• If the offset pressure is incorrect an

adjustment can be made. See Section 4.3.2

for details

• If no adjustment is required, remove

manometer.

• Reconnect the hose from the fan inlet port to the gas

valve air pressure connection.

• Tighten the tap plug securely. DO NOT

OVERTIGHTEN.

• Before operating the heater, test the gas supply

system and all connections for leaks using a soap

solution. Do not use an open ﬂame to test for leaks.

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.

OFF

UNITS

ZERO

OUTLET PRESSURE TAP

FAN INLET PORT

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

made to bring the offset pressure within the required

range. Prior to making any gas valve adjustments:

• Ensure that the inlet gas pressure from Section 4.2 is

within the speci ed range.

• Ensure that the manometer has been connected in

accordance to steps a-f in Section 4.3.1.

• Ensure that all hoses, barbed ttings plugs and caps

are securely in place and not leaking.

• With the heater running read and record the offset

pressure displayed on the manometer. If an

adjustment is still required:

• Remove the offset adjustment sealing cap (using a

T40 torx driver) to expose the torx adjustment screw

below.

• Using a T40 Torx driver turn the plastic adjustment

screw as follows:

To Increase Offset Pressure:

Turn the adjustment screw 1/4 turn clockwise.

To Decrease Offset Pressure:

Turn the adjustment screw 1/4 turn counter clockwise.

• Once the proper gas offset pressure has been

achieved. Securely reinstall the cap.

• Shut down the heater at the user interface.

• Remove manometer.

• Before operation, test the complete gas supply system

and all connections for leaks using a soap solution.

Do not use an open ﬂame to test for leaks.

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.

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

environmental conditions, liquid propane (LP) gas is

more dense or heavier than air and will more readily

collect or pool in enclosed areas if adequate ventilation is

not provided. It is not recommended to install LP gas

heaters in enclosed areas such as pits. Locate heaters a

safe distance from LP gas cylinders and lling

equipment. Consult the Australian / New Zealand

Standard AS/NZS 1596 and gas installation standard

AS/NZS 5601, and any other local codes and re

protection authorities about specic installation

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 . Any conguration other than as

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,

Zodiacisnotresponsibleforanylargescalewaterloss,oodingor

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

betweenthepoolandthelterpumpinlet.

Figure 6. Typical Water Piping Con guration

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

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

Page 18 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual

5.1 Pump Sizing

The ow bypass within the heater manifold will

accommodate ows rates delivered to the heater from a

minimum of 114 Litres per minute (lpm) (30 gpm) to a

maximum ow of 379 lpm (100 gpm.)

CAUTION

The system water pump must be capable of providing no less than

114lpm(30gpm)ofowthroughtheheater.Flowratesatlessthan

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

ign Pressure Drop (kPa)De

Flow Rate (lpm)

JXi VersaFlo™ Bypass*

* This heater comes equipped with the VersaFlo™

Integrated Bypass. For details please review the

included installaon and operaon manual.

80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420

Design Head Loss (meters head)

2.5

3.5

4.5

5.5

0.0

1.5

5.1.1 Manual Bypass Valve

A manual bypass valve is to be installed in any system in

which the pump ow exceeds 378 lpm (100 gpm).

Connect ball valve between water inlet and outlet. See

inset “a.” in Figure 6.

• Adjust the valve to bring the ow rate within the

acceptable range. See Table 3.

• Remove the valve handle to avoid tampering.

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

determining the design ow rate. Component “Head Loss

at Flow” curves are available from equipment

manufacturers.

NOTE: Inordertoproperlyestablishheadlossatowforalter,

rememberthata“dirty”ltercantypicallyadd69kPa(10psi)of

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,

determine if the existing pump is capable of providing the

minimum ow of 114 lpm (30 gpm). JXi heaters are high

efciency heaters. Heaters typical of this construction

may have higher head loss characteristics than the one

being replaced.

CAUTION

Heaterfailureduetoinsufcientwaterowisnotcoveredunderwar-

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

The heater has a standard 50 mm (2") water manifold and

coupling design. With this feature, only nominal 50 mm

(2") PVC or CPVC may be connected to the heater. Zodiac

Australia Pty Ltd recommend the use of 50mm (2") pipe

with a minimum of 40mm (1.5") to be tted to the heater.

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,beforeanallocationandorientationfortheappliance

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.

Remove the four black screws securing the heater

top panel to the heater body.

Lift heater top panel. Be careful not to damage or

apply undue stress to the user interface wiring.

Rotate the heater top panel 180°.

• Place heater top panel securely on heater body.

• Secure with the four screws removed in step “a”.

• Restore power to the heater.

• Return heater to normal operation.

5.2.2 Water Inlet Piping

There are two options for water inlet connections on the

JXi. Both congurations use the same water outlet to

return heated water to the pool. Be sure to check ow

rates as outlined in Section 5.1 and if necessary make

provisions for and ensure sufcient space for the

installation of a manual bypass valve as outlined in

Section 5.1.1

The top inlet is intended for use with the Versa Plumb™

sweep elbow. Plumbing in this conguration can increase

hydraulic efciency particularly when used in a system

with other Versa Plumb compatible Equipment. See

Figure 8.

The sweep elbow also provides the advantage of its

exclusive interface with the AquaLink® RS temperature

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.

• Do a dry t test of cut pipe lengths in order to ensure

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®

approved all purpose cleaner/primer.

• 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

• Align tailpiece and manifold orice.

• 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.

Page 20 ENGLISH Zodiac®JXi™Gas-Fired Pool & Spa Heater |Installation & Operation Manual

Sweep ElbowUnion Nut

Union Nut

Union Tailpiece

Cut Pipe

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.

• Repeat the above steps for the manifold outlet. Again

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.

• Return all valves to their operating positions.

• Restore power to the heater at the breaker.

• Turn on pump and inspect carefully for leaks.

• Restore main gas supply.

• Start the system and check for proper ow.

• Return heater to normal operation.

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.

Followallltermanufacturer’sinstructions.Never

attempt to assemble, disassemble or adjust the

lterwhenthereispressurizedairinthesystem.

Starting the pump while there is any pressurized

airinthesystemcancausethelterlidtobe

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

14 kPa (2 psi). The pressure switch setting must be

adjusted If the heater is installed:

• Below the surface level of the pool

• More than 600 mm (2′) above the pool level

• Where the pressure is measured at 6.9 kPa (1 psi) or

greater with the lter pump off

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owcan

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

1.8 m (6′) above the pool water surface or 3.4 m (11′)

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”.

• Remove ve screws securing the side panel to the

heater body.

• Remove the side panel to gain access to the water

pressure switch. See Figure 10.

• Turn the lter pump on.

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

• Conrm that the pressure switch closes with a

voltmeter.

• If the switch does not close, check that all valves are

open to the heater and that there are no restrictions in

the line. You may also need to conrm ow rate from

your pump as outlined in Section 5.1.

• Once an operational and correctly sized pressure

switch has been conrmed, set the heater control to

either POOL or SPA.

• With your ngers, turn the adjustment sprocket very

slowly clockwise until the heater shuts off.

• Slowly turn the pressure switch adjustment sprocket

counterclockwise one-quarter turn. The heater should

come back on. See Figure 10.

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