Jandy 200, 260, 330, 400, Pro JXi 200 Installation And Operation Manual

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INSTALLATION AND

OPERATION MANUAL

Jandy Pro Series

JXi™ Gas-Fired Pool and Spa Heater

Models 200, 260, 330, 400

If these instructions are not followed exactly, a fire or explosion may

WARNING

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 Pool Systems, Inc. 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.

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.

result, causing property damage, personal injury, or death.

H0404700 Rev D

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Table of Contents

Section 1. General Information ....................... 3

1.1 Introduction ......................................................... 3

1.2 Technical Assistance .......................................... 3

1.3 Consumer Information and Safety ...................... 3

1.4 Warranty ............................................................. 4

1.5 CerticationCodesandStandards ..................... 4

1.6 General Operation Description ........................... 4

1.7 Safety Controls ................................................... 4

Section 2. Installation Requirements .............. 5

2.1 Introduction ......................................................... 5

2.2 Materials Installer Must Provide ......................... 5

2.3 Specications ..................................................... 5

2.4 Heater Components ........................................... 6

2.5 Dimensions ......................................................... 7

2.6 Clearances ......................................................... 7

2.7 Field Assembly ................................................... 8

2.8 Location Requirements ..................................... 8

Section 3. Venting ..10

3.1 Combustion Air Supply ..................................... 10

3.2 Exhaust Venting ................................................11

3.3 Vent Pipe Sizing and Installation ......................11

Section 7. Operating Instructions ................. 27

7.1 First-Time Start-Up Procedure ......................... 27

7.2 Starting the Heater ........................................... 27

7.3 Normal Operation ............................................. 28

7.4 Operating the Controller ................................... 28

7.5 Setting up Heater Options ................................ 29

7.6 Operating the Heater ........................................ 29

7.7 Temperature Set Point Lock ............................. 30

7.8 Shutting Down the Heater ............................... 30

Section 8. Maintenance .................................. 32

8.1 Winterizing ........................................................ 32

8.2 Spring Start-up ................................................. 32

8.3 Inspection and Service ..................................... 32

Section 9. Troubleshooting ........................... 33

9.1 Common Problems ........................................... 33

9.2 Service Diagnostic Messages .......................... 35

9.3 Ignition Control LED Service Codes ................. 35

Section 10. Professional Service

and Maintenance .......................... 36

10.1 Gas Pressure Offset Test ................................. 36

Section 4. Gas Connections .......................... 15

4.1 Install Piping and Check Gas Supply ............... 15

4.2 Special Precautions for LP Gas........................ 16

Section 5. Water Connections ....................... 16

5.1 Water Piping Connections ................................ 16

5.2 Pump Sizing ..................................................... 17

5.3 Plumbing Connections ..................................... 18

5.4 Water Pressure Switch Adjustment .................. 19

5.5 Check Valve Installation ................................... 20

5.6 Reversing the Water Connections ................... 20

5.7 Pressure Relief Valve Installation ..................... 20

5.8 Auxiliary Components, Chlorinators, Ozone Generators,

and Sanitizing Chemicals ................................. 21

Section 6. Electrical Connections ................. 21

6.1 General Information .......................................... 21

6.2 Service Access ................................................. 23

6.3 Main Power ...................................................... 23

6.4 Bonding ............................................................ 24

6.5 Optional Remote Controls ................................ 24

Section 11. Spare Parts ................................... 36

11.1 Ordering Information ........................................ 36

11.2 JXi Major Components ..................................... 37

11.3 Cabinet Assembly Spare Parts List

and Exploded Parts Diagram ........................... 38

11.4 Heat System Spare Parts List and

Exploded Parts Diagrams ................................. 39

11.5 Water System Spare Parts List and

Exploded Parts Diagrams ................................. 42

11.6 Electrical System Spare Parts List and

Exploded Parts Diagrams ................................. 43

Section 12. Water Chemistry .......................... 45

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Section 1. General Information

1.1 Introduction

This manual provides installation and operation instructions for the Jandy Pro Series JXi pool and spa gas heater product line.

Read the installation and operation instructions completely before proceeding with the installation.

1.2 Technical Assistance

For technical support or questions, contact your local Zodiac

800.822.7933 (in Canada: 888.647.4004).

distributor or Zodiac Pool Systems, Inc. at

1.3 Consumer Information and Safety

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 additional measure of safety, Zodiac Pool Systems, Inc. strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent occupied spaces.

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.

2. The drinking of alcoholic beverages before or during spa or hot tub use can cause drowsiness which could lead to unconsciousness, and subsequently result in drowning.

3. Pregnant women take note! Soaking in water above 102°F (38.5°C) can cause fetal damage

during the rst three (3) months of pregnancy

(which could result in the birth of a braindamaged or deformed child). If pregnant women are going to use a spa or hot tub, they should make sure the water temperature is below 100°F (38°C) maximum.

4. The water temperature should always be checked with an accurate thermometer before entering a spa or hot tub. Temperature controls may vary by as much as 1F° (1C°).

5. Persons with a medical history of heart disease, diabetes, circulatory or blood pressure problems should consult their physician before using a hot tub or spa.

6. Persons taking any medication which induces drowsiness (e.g., tranquilizers, antihistamines, or anticoagulants) should not use spas or hot tubs.

7. Prolonged immersion in hot water can induce hyperthermia.

Hyperthermia occurs when the internal body temperature reaches a level several degrees above the normal body temperature of 98.6°F (37°C). Symptoms include dizziness, fainting, drowsiness, lethargy, and an increase in the internal body temperature. The effects of hyperthermia include:

1.3.1 Spa/Hot Tub Safety Rules

WARNING

The following “Safety Rules for Hot Tubs,” recommended by the U.S. Consumer Product Safety Commission, should be observed when using the spa.

WARNING

The U.S. Consumer Product Safety Commission warns that elevated water temperature can be hazardous. Consult heater operation and installation instructions for water temperature guidelines before setting temperature.

1. Spa or hot tub water temperature should never exceed 104°F (40°C). One hundred degrees Fahrenheit (100°F [38°C]) is considered safe for a healthy adult. Special caution is recommended for young children.

• 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

1.3.2 Swimming Pool Energy Saving Tips

Zodiac Pool Systems, Inc., offers the following recommendations to help conserve fuel and minimize

the cost of operating your pool heater without sacricing

comfort.

1. The American Red Cross

recommends a maximum water temperature of 78°F (26°C). Use an accurate pool thermometer. A difference of 4F° (2°C), between 78°F and 82°F (26°C and 28°C), will use as much as 40% more gas.

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2. Carefully monitor the water temperature of your pool in the summertime. You can reduce heater usage due to warmer air temperatures.

3. Find the proper setting on the pool heater temperature control and use the Set Point Lockout feature to discourage further adjustments.

4. Set the pump time clock to start the pump no earlier than 6:00 AM during the pool heating season. This is the time when nightly heat loss balances.

5. If the pool is only going to be used on weekends, reduce the heater temperature control setting by 8 or 10 degrees during the week. Reset it to the 78°F (25°C) level a day or so before you plan to use the pool.

6. During the winter or when on vacation for longer than a week, shut down the heater by following the shutdown instructions found on the inside of the heater.

7. Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other landscaping, cabanas, or fencing.

8. Always use a pool cover when practical. Besides providing a valuable safety feature, a pool cover will reduce heat loss, conserve chemicals, and

reduce the load on lter systems.

1.4 Warranty

This heater is sold with a limited factory warranty. Details are included with this heater.

Make all warranty claims to a Zodiac

dealer or directly to the factory. 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, damage to the heat exchanger by

corrosive water is NOT covered by the warranty.

NOTE Keep this manual in a safe place for future reference when inspecting or servicing the heater.

1.5 CerticationCodesandStandards

The heater is design-certied by CSA (Canadian

Standards Association) compliant with the latest edition of the Standard for Gas Fired Pool Heaters, ANSI in the USA and CSA 4.7 in Canada.

All Jandy Pro Series 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, refer to the latest edition of the following national codes for installation:

Z21.56

1. In the United States, the National Fuel Gas Code,

NFPA

54/ANSI Z223.1. Pay particular attention

to the chapter addressing Venting of Equipment.

2. In Canada, the Natural Gas and Propane

Installation Code, CAN/CSA-B149.1. Minimum combustion air requirements MUST be followed for proper and safe operation. The

Jandy Pro Series JXi heater may not operate properly when installed with only the minimum combustion air openings allowed in CAN/ CSA-B149.1.

The JXi pool and spa heaters meet or exceed the requirements of energy conservation regulations, such as those in California, Hawaii, New York, Oregon and other states that have disallowed the use of continuously lit pilot type ignition sources. In addition, the natural gas models of this heater comply with the California South Coast Air Quality Management District's (SCAQMD) Rule 1146.2 for Nitrogen Oxide (NOx) emissions.

Any changes to the heater, gas controls, air orice, gas orices, wiring, draft diverter, or improper installation

may void the warranty. If change is required to any of the above, consult the factory.

1.6 General Operation Description

In the JXi heater, the blower draws air and fuel through

specially designed orices for both air and gas, then

delivers the precise mixture to the burner located inside the combustion chamber. The combustion chamber is completely sealed and contains the heat exchanger, which surrounds the burner. Once combustion gases pass

through the heat exchanger, the ow is directed through

an exhaust duct located on the side of the combustion chamber, where it vents to the atmosphere.

1.7 Safety Controls

The JXi heater is equipped with the following safety controls to protect internal components and prolong the life of the heater.

Air Flow Switch

The air ow switch monitors the vacuum (negative pressure) within the blower housing. The air ow switch

is factory set and the ignition module will not operate unless the air pressure switch and all safety switches are

satised.

Water Pressure Switch

Operating the heater without sufcient water ow may severely damage the heater. If water ow to the heater is

restricted, the water pressure switch prevents the burner

from ring. The control panel will display an error message to indicate water ow is insufcient.

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NOTE: If the heater is installed below the level of the pool,(or

more than two feet above the pool level), the pressure switch setting must be adjusted. See Section 5.4 Adjusting the Water Pressure Switch for guidelines.

Water Temperature Control

All heater models are equipped with an electronic control which senses water temperature by means of a thermistor and controls heater operation to bring the water to the temperature selected. It has an option for two (2) separate thermostat settings which are typically used to set pool and

spa temperatures.

Ignition Control

The ignition control provides energy for ignition of the air/

gas mixture, monitors the ame and controls the gas valve.

When the temperature control calls for heat, the ignition

control initiates the start-up process by rst purging the

combustion chamber gases. The ignition control will then energize the igniter and open the gas valve when

the igniter surface is sufciently hot. During the start-up

process and after ignition, the ignition control system is

continually monitoring the ame condition. If the control senses an unstable ame it will close the gas valve as a

safety precaution.

2.2 Materials Installer Must Provide

For ALL Installations

• The correct size gas pipe to supply gas from gas meter to heater (see Section 4.1).

• Gas shut-off valve to be installed in gas line outside of the heater jacket.

• Manual gas shut off valve must be installed in an accessible location, within 6’ upstream of heater.

• A suitable gas union joint to connect heater to gas line outside of heater.

• Plumbing materials for providing sediment trap (drip leg) in gas line between the manual gas valve and heater (see Section 4.1).

• 120 VAC or 240 VAC power supply. (A junction box is not needed at the heater; connections are made inside of the heater jacket.)

For Special Installations

• INDOOR INSTALLATIONS: Factory authorized vent pipe or elbows sized for indoor installations (US) and/or outdoor shelter installations (Canada).

• PVC PIPE CONNECTIONS: Primer and cement suitable for cementing CPVC pipe to PVC pipe. Coupling for connecting factory-supplied CPVC pipe unions to PVC pool plumbing

Section 2. Installation

Requirements

2.1 Introduction

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 1.5 for certication codes and standards.

All gas-red products require correct installation to assure

safe operation. The requirements for pool heaters include the following:

• Field assembly (if required)

• Appropriate site location (clearances) and ooring (see Section 2.6)

• Sufcient combustion and ventilation air

• Properly sized gas meter and piping

• Proper electrical wiring (if required)

• Adequate water ow

This manual provides the information needed to meet these requirements. Review all applications and installation procedures before continuing the installation. See Section 2.7 for NOTE on operating the heater in areas with below freezing conditions.

2.3 Specications

Installation Location

• Natural Gas (USA) -

Certiedforindoorandoutdoor

• Natural Gas (CANADA) -

Certiedforoutdoorandcoveredshelterinstallations

• Liquid Propane (USA) -

Certiedforindoorandoutdoorinstallations

• Liquid Propane (CANADA) - Certiedforoutdoorandcoveredshelterinstallations NOTE: Indoor installation is not recommended for liquid propane heaters. Review information in Special Precautions for liquid propane heaters (Section 4.1).

Minimum Clearance from Combustible Material

• 6 inch (15 cm) minimum clearance distance from all surfaces See Section 2.6 for more information.

Gas Pipe/Heater Gas Valve Connection

• Natural Gas: 3/4" NPT

• Liquid Propane: 3/4” NPT

• For gas pipe sizing requirements, see Table 4.

Supply Gas Type

• Natural Gas

• Liquid Propane

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Inlet Gas Supply Pressure

• Natural Gas: Minimum 4.0" WC Maximum 10.5” WC

• Liquid Propane: Minimum 4.0” WC Maximum 14.0” WC

Gas Valve Offset Pressure

• Natural Gas: - 0.2" WC (when heater is running)

• Liquid Propane: - 0.2" WC

*NOTE: All readings must be taken while the heater is

operating.

Water Pipe/Heater Connection

• 2" unthreaded slip PVC or CPVC pipe

• Jandy Pro Series union

Water Flow Rate

• Minimum: 30 gpm (76 lpm)

• Maximum: 120 gpm (454 lpm)

Working Water Pressure

• Maximum: 50 psi

• Minimum: 2 psi

Exhaust Vent Connection Size (Category I)

Use type B double-wall gas vent, per table 13.1(a) NFPA 54

• Model 200: 6 "

• Model 260: 7 "

• Model 330: 8 "

• Model 400: 8 "

Exhaust Vent Connection Size (Category III)

See Section 3.0 for information.

Electrical Supply

• 120 VAC

• 240 VAC (factory setting)

High Altitude

• Appliances are normally de-rated when installed at high elevation. This is not necessary with the JXi heater because it has a special venturi-type combustion system which self-compensates for changes in barometric

pressure.Airowthroughtheblowerinletpullsthe correctowofgasintotheburnerregardlessofair density.Propercombustionandhighefciencyare

assured without special adjustment or changes to the heater.

2.4 Heater Components

1. Gas Valve - The gas valve controls gas ow into the burner. It enables ow only when the

temperature control requires heat and only if all safety controls enable operation. It is also a negative pressure regulator, where it maintains a gas pressure of 0.2” WC below the the air pressure at the blower inlet. It regulates the gas pressure to

0.2” WC less than the air pressure at the blower inlet. This is necessary for proper operation of the burner system and cannot be accomplished with common (positive pressure) gas valves.

2. Combustion Blower and Air Orice – The blower pulls air and fuel gas in through their

respective orices and mixes the two gases before

forcing the fuel/air mixture through the burner for combustion. During normal operation the fan

will turn on before ame initiation to ensure that

the combustion chamber is clear before the igniter is energized. Additionally, the fan will run after

the ame is extinguished in order to clear the

combustion chamber of exhaust gas.

3. Pool/Spa Water Temperature Control - The JXi heater models are equipped with an electronic control, which senses water temperature by means of a thermistor and controls heater operation to attain and maintain the water according to the temperature selected. It has an option for two (2) separate thermostat settings, which are typically used to set pool and spa temperatures.

4. Ignition Control - The ignition control provides energy for ignition of the air/gas mixture, monitors

the ame and controls the gas valve. When the

temperature control calls for heat, the ignition control provides a pre-purge of the combustion chamber. Once the pre-purge is complete the ignition control then applies electrical power to a hot surface igniter. When the igniter attains

sufcient temperature, the ignition control opens

the gas valve. Immediately after ignition, the control system will look for characteristics of a

stable ame and de-energize the igniter. If ame

is not detected shortly after opening the gas valve the control system will close the valve to prevent further gas release. The ignition control will attempt to start 2 more times before an ignition fault is displayed.

5. Igniter - The hot-surface igniter is constructed of a ceramic material that attains a temperature great enough to ignite the air/fuel mixture, when an electric current is applied.

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6. High Limit Switches - Two (2) limit switches -

one at the heat exchanger rst pass (135°F/57°C)

and one at the heat exchanger outlet (150°F/65°C)

-- prevent water of excessive temperatures from being discharged from the heater. If either switch senses excessive temperature, the gas valve will close and combustion will stop.

7. Water Pressure Switch - Operating the heater

without sufcient water ow may severely

damage the heater. This control senses whether or not water is available to the heater by measuring back pressure at the header inlet. If the pool

water pump fails or the water lter is blocked, the

pressure switch prevents operation of the burner.

The display will indicate a no ow fault to alert you that water pressure is insufcient.

NOTE: If the heater is installed below the surface level of the

pool,(or more than two feet above the pool level), the pressure switch setting must be adjusted. See section

5.4 Adjusting the Water Pressure Switch.

8. Vent Temperature Limit (240°C/464°F)- This

is a single use switch, which detects abnormal temperatures in the vent system. It is mounted to the exhaust duct. Excessive temperatures will cause the switch to open. Excessive temperatures can be caused by inadequate water

ow or a compromised heat exchanger. The vent

temperature limit switch will open the safety circuit which shuts off the gas valve and shuts down the heater. If this limit is activated/tripped,

the heater cannot be safely operated without rst

determining the cause and without replacing the limit switch with an exact replacement.

9. Air Pressure Switch - The air pressure switch monitors the vacuum (negative pressure) within

the blower housing. This switch veries that air

is owing through the combustion system by sensing pressure. It shuts off the heater if air ow

is inadequate.

2.5 Dimensions

See Figure 1 for exterior dimensions and dimensions to critical connections.

2.6 Clearances

In both indoor installations (US) and outdoor shelter installations (Canada), the heater must be placed to

provide clearances on all sides for maintenance and inspection, as well as maintain minimum distances from combustible surfaces.

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 that those listed in this manual, use the greater value to ensure safest operation.

2.6.1 Combustible Surfaces

The following minimum clearances must be maintained from combustible surfaces during operation. See Section

2.6.2 for clearances required for service and inspection.

TOP: 6 inches (15 cm)

EXHAUST SIDE: 6 inches (15 cm) from

surface of the exhaust vent

HEADER SIDE: 6 inches (15 cm)

DOOR PANELS: 6 inches (15 cm)

The dimensions shown in Figure 1 are certied by CSA

for USA and Canada (outdoor shelter). In Canada, 24 inches (60 cm) clearance is required per CSA B149.1, section 4.14.2.

26.5" (67 cm)

16.0" (40.6 cm)

Figure1. GeneralConguration

EXHAUST SIDE

21.0

22.1" (56 cm)

25.2" (64 cm)

6.3"

(16 cm) (58 cm)

FRONT

36.5" (93 cm)

22.9"

*VersaPlumb® Sweep Elbow Inlet

*Optional Inlet

18.5" (47 cm)

10.13"

(25.7cm)

5.6"

(14.2 cm)

Outlet

*Union nut, cap, and O-ring provided for unused inlet. Sweep

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2.6.2 Service Clearance

Heater must be installed at least 5 feet (1.5 m) from the inside wall of a pool unless the heater is separated from the pool by a solid fence, wall or other permanent solid barrier. For US installations, at least 18 inches (22.5 cm) access must be available from at least one door panel for service, inspection, and repair (see Figure 2). In Canada, at least 24 inches (30 cm) is required for service, inspection, and repair (see Figure 2).

If removing the header panel for maintenance, allow at least 4 feet (1.2 m) access clearance.

If installing in a garage, consult the applicable National Building Code for proper placement of protective bollards or posts to prevent the heater from damage.

Min.

vertical

clearance:

36ʺ(45cm).

Min. clearance to at least

one door

panel:

18ʺ(22.5cm)US

24ʺ(30cm)Canada

Min. distance to inside wall of pool (unless separated by a solid wall):

5 feet (1.5 m)

Min. service

clearance

from header

4 feet (1.2 m)

2.8 Location Requirements

CAUTION

When pool equipment is located below the pool surface, a leak from any component can cause large

scalewaterlossorooding.ZodiacPoolSystems,

Inc., cannot be responsible for such water loss or

oodingorresultingdamage.

Location of the heater below or above the pool water level affects operation of its water pressure switch. See sections on water piping and heater start-up for more information.

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 the prevailing local conditions such as wind speed and direction, proximity and height of walls that may block ventilation, and proximity to public access areas.

2.8.1 Flooring

The heater must be installed on a level, solid, and rm

surface or platform. Although it is always advisable to install the heater on a non-combustible surface, the JXi-

series has been CSA-certied for installation on solid, rm, and level combustible surfaces.

2.8.2 Outdoor Installation

The heater is factory congured for outdoor installation.

Figure 2. Service Clearance Requirements

2.7 Field Assembly

The JXi heater is shipped from the factory with an exhaust

vent congured for outdoor installation.

The heater is also design-certied for indoor installations

in the United States and outdoor shelter installations

in Canada. The heater has a ue collar for indoor

installations (see Section 3.3.1 for detailed instructions).

Check specications in Section 2.3 for appropriate vent

connection size (Category I).

Water connections are provided on the right side of the heater but can be changed to the left side by rotating the heater 180 degrees, so the water manifold is on the left, then rotating the top panel so that the control panel faces the operator.

NOTE: If the heater is to be operated in below freezing

conditions it should be installed in a protected outdoor shelter (see Section 2.8.3).

WARNING

United States

Do not install the heater with the top of the vent assembly within 4 feet (1.22 m) horizontally, 4 feet (1.22 m) below or less than 1 ft (300 mm) above of any opening into a building. Local codes and installation requirements may vary.

Canada

Do not install the heater with the top of the vent asembly within 10 feet (3.05 m) of any opening into a building. Local codes and installation requirements may vary.

• Locate the heater on a level surface in an open, unroofed area. If the heater is to be installed inside a

contained area, refer to venting requirements, Section

2.8.3.

• Do not install the heater under a deck.

• Do not locate the heater below or adjacent to any doors, glass openings, louvers, grills, etc., which connect in any way with an inhabited area of a building, even though the access might be through another structure (e.g., a garage or utility room).

• In Canada, install the heater so that the top of the vent is at least 10 feet (3.0 m) from any building opening. See Figure 3.

Distance from heater to door, window or other opening: A - USA 4 ft (1.2m) minimum; Canada 10 ft (3 m) minimum

Distance from heater to forced air inlet or other vented opening: B - USA and Canada If C is greater than 3 ft (0.9m), any distance OK;

If C is less than 3 ft (0.9m), B must be at least 10 ft (3 m)

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

• The top surface of the heater must be at least 3 feet (0.9 m) above any forced air inlet, or intake ducts located within 10 feet (3.0 m) horizontally.

• 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.

• In the United States install the heater so that there is at least a three (3) foot (1 m) clearance between the bottom of the overhang to the top of the heater exhaust vent.

• If the heater is installed close to a structure, protect it from rain water runoff with rain gutters on the roof or other measures.

• Do not locate the heater near irrigation sprinkler systems that could spray water on it. Water from sprinklers can damage controls and electronic components.

• Be sure to divert rain water runoff away from heater

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1/4” X 2-1/4” GALVANIZED OR PLATED CONCRETE SCREWS (4)

WASHER

“L” BRACKET

HOLE

Figure 4. Anchor Heater To Equipment Pad

NOTE: Other jurisdictions may have similar requirements for

extreme weather. Check your local codes for relevant

details.

2.8.3 Indoor Installations (and Outdoor Shelter, Canada)

Figure 3. Outdoor Heater Installation

Outdoor Installations in Florida:

Due to the high risk of extreme weather conditions in Florida, the heater is required to be securely fastened to the equipment pad (see Figure 4) to meet the applicable requirements of the Florida Building Code.

NOTE: Mounting screws are not provided with this heater. Use

size 1/4" x 2-1/4" long galvanized or plated concrete screws and washers.

1. Place the heater on the equipment pad.

2. Drill a hole in the concrete at each of the brackets on each corner of the heater. (The correct size drill bit is usually provided with the concrete screws when purchased).

3. Place a screw in each of the holes and fasten the heater to the concrete pad. Do not over-torque the screws.

WARNING

United States

Do not install the heater with the top of the vent assembly within 4 feet (1.22 m) horizontally, 4 feet (1.22 m) below or less than 1 ft (300 mm) above of any opening into a building. Be sure to consult local codes and installation requirements as some jurisdications may have varying and more stringent requirements.

Canada

Do not install the heater with the top of the vent asembly within 10 feet (3 m) of any opening into a building. Be sure to consult local codes and installation requirements as some jurisdications may have varying and more stringent requirements.

The heater is CSA design-certied for indoor installations

in the US and for outdoor shelter installations in Canada. To install for outdoor shelter area, you will need to remove the vent housing and the exhaust grate.

When pool equipment is installed indoors, appropriate containment and drain should be provided to prevent property damage in the event of equipment leaks.

NOTE: An outdoor shelter is an unoccupied enclosure which

does not communicate directly with occupied areas.

All outdoor shelter installations (Canada only) must have uninterrupted openings to outside air for combustion and ventilation. The installation must be in accordance with the latest edition of CAN/CSA B149.1.

Zodiac Pool Systems, Inc., does not recommend outdoor

Page 10

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shelter installations that depend on internal air for combustion (see Table 1).

Due to the higher risks and hazards of Liquid Propane (LP) gas, Zodiac does not encourage installation of LP gas heaters indoors. Please be sure to refer to section 4.2 for additional precautions that must be considered for LP gas.

Section 3. Venting

3.1 Combustion Air Supply

As outlined in the latest edition of ANSI® standard Z223.1 (NFPA

to provide sufcient air supply for proper combustion and

ventilation of the surrounding area.

In general, these requirements specify that the room in which a heater is installed should be provided with two permanent air supply openings:

• one within 12 inches (305 mm) of the ceiling

• one within 12 inches (305 mm) of the oor

All indoor installations must have openings to outside

air for combustion, ventilation, and dilution of ue

gases from inside the building. Do not, under any circumstances, install this product in an indoor location which does not provide combustion air to the appliance from outside the building.

In addition, the heater must be completely isolated and protected from any source of corrosive chemical fumes such as those emitted by trichlorethylene, perchloroethylene, chlorine, etc.

54), the heater location must be properly vented

Model

200

260

330

400

Table 1. Air Openings to Outside

NOTE: If using screens and/or metal louvers, compensate by

Direct from outside Duct from outside

50 323 100 645

65 419 130 839

83 535 165 1065

100 645 200 1291

adding 50% additional area to each opening. If using wood louvers, each opening must be at least four times the area indicated in the table above.

For special conditions, refer to Section 9.3.3.1 NFPA 54 ANSI Z223.

The information in Table 1 is not applicable in installations where exhaust fans or blowers of any type are used. Consult a Professional Engineer (P.E.) 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.

Outside Air Supply: When combustion air is supplied directly through an outside wall, each opening should have a minimum free area of 1 square inch per 4,000 BTU/h (1.2kW) input of the total input rating of all appliances in the enclosed area.

If air is provided through horizontal ducts, each opening

and duct must provide 1 square inch of ow area for

each 2000 BTU/h (0.6 kW). These requirements are summarized in Table 1.

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.

Minimum Net Free Open Area* for Combustion Openings (square inches/centimeters)

*Area indicated is for one of two openings:

one12inchesfromoorlevel,one12inchesfromceilinglevel.

Exhaust Fans or Vents: 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.

The information in Table 1 is not applicable in installations where exhaust fans or blowers of any type are used. Such installations must be designed by a Professional Engineer (P.E.).

3.2 Exhaust Venting

When converted to indoor and outdoor shelter venting

conguration, the JXi has a ue collar for attachment to

the venting for category I vertical venting and category

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III vertical and horizontal venting. The only correct procedure for vent pipe sizing is to do so in accordance with Table 2 (Section 3.3.2 of this manual) and the applicable installation code as stated in the following warning and Table 13.1(a) and 13.1 (b) per NFPA 54 for category I and Table 3 for Category III.

WARNING

Vent pipe materials, sizing, and installation must be as required by the National Fuel Gas Code NFPA 54/ ANSI Z223.1 or the Canadian Installation Codes for Gas Appliances CAN/CSA-B149.1. Undersized pipe can result in inadequate venting and oversize pipe can result in vent condensation. Improper selection of vent pipe material, incorrect sizing of the pipe, and misinstallation 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.

Note that with horizontal Category III type vent installations, the venting diameter is four (4) inches and AL29-4C vent pipe and elbows. See Section 3.3.1 for procedure to connect vent pipe and elbows.

stainless steel. The JXi ue collar ts 4-inch

resistant and suitable for the specic installation being

considered

• Do not locate the vent terminal where ue products could strike against building materials and cause degradation.

• Vent opening should be well away from trees or other

obstructions that would prevent free air ow to and

from vent terminal.

• Do not terminate the vent under decks, stairways, or car ports.

3.3.1 Vent Pipe or Elbow Increaser Installation

(Category I and Category III)

1. Remove the exhaust body.

2. Remove the exhaust rain shield (see Figure 5).

Exhaust Vent

Rain Shield

3.3 Vent Pipe Sizing and Installation

The JXi may be installed with venting as a Category I or Category III appliance.

• Category I: A Category I appliance is a vented

appliance that operates with a non-positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent. Category I installations are vented vertically and terminate at the roof.

• Category III: A Category III appliance is a vented

appliance that operates with a positive vent static pressure and with a vent gas temperature that avoids excessive condensate production in the vent. Category III installations can be vented via a side wall.

In all installations (Category I and Category III):

• Avoid terminating heater vents near air conditioning

or air supply fans. Fans can pick up exhaust ue

products from the heater and return them inside the building, creating a possible carbon monoxide or other health hazard.

• Selection of vent pipe type and material must be carefully considered depending on the type of installation. Zodiac strongly recommends using high quality vent pipe materials, which are corrosion

Figure 5. Remove Exhaust Body and Rain Shield

3. Category I: Install a 4 inch double-wall appliance adapter and an increaser to meet the vent size requirements per Table 2. (See Figure 6.)

Category III:

Install vent connector or elbow to the ue collar according to the specic installation instructions

from the vent connector or elbow component manufacturer.

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4 inch double-wall appliance adapter

Increaser

Figure6. CategoryIInstallationConguration

4. Wipe the socket of the vent body with rubbing alcohol using a clean cloth or paper towel, then. dry with a different clean cloth.

5. Connect the 4 inch double-wall appliance adapter for category I or vent connector for category III to

the ue collar and fasten with three (3) sheet metal

screws, as shown in Figure 7).

NOTE: It is important to position the three screws so the seal

in the flue collar is not compromised. Begin with first screw at 3 o’clock position from top of the flue collar seam. Install screws 2 and 3 in positions 120 degrees apart (as shown in Figure 7).

Fasten three screws, positioned at 120° intervals from top seam in vent collar

screw (3)

120°

screw (2)

Start with screw (1) at 3 o’clock position

seam

120°

screw (1)

Apply RTV at seal after connecting. Use minimum 600°F (315°C) temperature rated RTV.

Figure 8. Seal Connection with RTV

3.3.2 Vertical Venting (Category I)

All indoor installations and outdoor shelter installations require an approved 4 inch double-wall appliance adapter

and increaser to be connected to the JXi 4-inch ue collar

for Type B installations. Increasers are available in steps up to a maximum of four sizes larger. 4 inch doublewall appliance adapters and increasers can be obtained

from manufacturers such as Amerivent or Duravent

(see Section 2.3 for detailed specications). All vent

installations must be made in accordance with local, state, or provincial codes and with:

• National Fuel Gas Code ANSI

Z223.1 (NFPA® 54), latest edition; pay particular attention to the chapter addressing “Venting of Equipment.” Applicable provisions of additional applicable local building codes may also need to be followed.

• Canada CAN/CSA B149.1.

Vent the JXi heater vertically in a negative pressure (nonpositive draft) system in accordance with the National Fuel Gas Code NFPA 54 / ANSI Z223.1 or the Canadian Natural Gas and Propane Installation Code, CAN/ CSA-B149.1. A type B double-wall vent connector is required. The heater must not be used to support the vent pipe.

Figure 7. Correct positioning of screws

on vent collar

6. Apply high temperature silicone RTV at the connection to seal, as shown in Figure 8.

NOTE: Use a minimum 600°F (315°C) temperature rated RTV.

Note that the tables for fan-assisted appliances include

both maximum and minimum vent loading gures in the

NFPFA 54. The primary purpose of the maximum ratings are to ensure that the vent operates with negative pressure throughout its length. The minimum rating refers to the

ring rate.

1. Determine the correct vent size for your heater according to Table 2.

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Notes:

1. Use approved roof jack.

ADEQUATE AIR SUPPLY TO ROOM TOP AND BOTTOM

Figure 9. Indoor Installation Venting (USA) or Outdoor Shelter (Canada) for Category I

Figure 10. Side Wall Vent Terminals for Category III (US installations). Refer to CSA B149 for

requirementsspecictoCanadianinstallations.Checklocalinstallationcodeswhichmay

require greater minimum distances from windows and doors to be maintained.

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Heater Size Vent Size

200 6" (15cm) 260 7" (18cm) 330 8" (20cm) 400 8" (20cm)

Table 2. Category I Vent Pipe Sizing Table

2. Install a 4 inch double-wall appliance adapter and an increaser (see Section 3.3.1).

3. Following the vent connector’s manufacturer instructions attach the vent pipe to the increaser and further secure them with sheet metal screws. Before connecting, wet a clean cloth or paper towel with rubbing alcohol and wipe the socket of the vent body. Dry with a different clean cloth. Vent piping must be adequately supported with no low spots or sagging that could allow condensate to collect. The heater must not be used to support the vent pipe. Horizontal runs must be sloped upwards away from the heater to a vent terminal at a minimum of 1/4 " per horizontal foot (2 cm/m).

4. Install the vent pipe so it can expand and contract freely with temperature changes.

Note: Do not run the heater vent into a common

vent with any other appliance.

3.3.3 Vertical or Horizontal Venting (Category III)

When the installation requires horizontal venting in excess of what is allowed for Category I installations or calls for horizontal discharge, the JXi may be installed with a Category III venting system.

Vent the heater either vertically or horizontally

using Al29-4C manufacturers such as Z-Flex

stainless steel components. Consult

or Heat Fab® to obtain

approved components. Venting materials must comply

with UL

1738 for Category III, Special Gas Vent. In Canada, the venting materials must be ULC S636 compliant. Vent piping must be adequately supported with no low spots or sagging that could allow condensate to collect.

The heater must not be used to support the vent pipe. Horizontal runs must be sloped upwards away from the heater to a vent terminal at a minimum of 1/4 inch per horizontal foot (2 cm/m).

Heater

Size

200 4" (10cm) TBD (m)

260 4" (10cm) 50ʹ(15m)

330 4" (10cm) TBD (m)

400 4" (10cm) 50ʹ(15m)

Table 3. Category III Vent Pipe Sizing Table

Vent Size

Special Gas Vent

Length (vertical or horizontal)

in feet (metres)

Side wall vents must be installed and located in

accordance with the National Fuel Gas Code NFPA

54 / ANSI

Z223.1 or the Canadian Natural Gas and Propane Installation Code CAN/CSA-B149.1. In addition, always consult your local installation codes. Some local installation codes may have requirements that exceed those of the the national codes. The product must be installed in accordance with the codes being enforced by the local Authority Having Jurisdiction (AHJ). See Figure 9 for side wall vent terminations.

IMPORTANT NOTE In the Commonwealth of

Massachusetts, additional requirements, covered in document CMR 248 5.00, which supersede some of the requirements of ANSI Z223.1 (NFPA 54) apply to Side Wall Horizontally Vented appliances. If installing this product using an approved side-wall horizontal vent system in the Commonwealth of Massachusetts, be sure to adhere to these additional requirements. These requirements include verbiage that says that the property owner is to ensure that Carbon Monoxide Detectors are installed in the vicinity of the appliance and also on all levels of the dwelling in which the appliance is installed. For further instructions, contact Zodiac Pool Systems, Inc., Technical Support Department at 800.822.7933

(in Canada: 888.647.4004)

1. Install the vent connector or elbow (see Section 3.3.1).

2. Install the vent pipe so it can expand and contract freely with temperature changes. Before connecting, wet a clean cloth or paper towel with rubbing alcohol and wipe the socket of the vent body.

3. Follow installation instructions from the manufacturer of the special gas vent components.

It is recommended that vent runs over 18 feet be insulated to reduce condensation and/or use a condensate trap in the vent run close to the heater, especially in certain cold climate installations.

See Table 3 for recommended vent size and run lengths without elbows. For each elbow installed, reduce the run length by 12 feet (3.7m)

WARNING

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.

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Precautions Against Common Venting:

Seek the assistance of a Registered Professional Engineer for proper design of a common venting system.

Zodiac Pool Systems, Inc. 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 in Canada CAN/CSA B149.1 for more information on common venting multiple appliances. Do not connect vent systems of different categories to the same venting system.

WARNING

Improper installation or maintenance can cause nausea

orasphyxiationfromcarbonmonoxideinuegases

3.3.4 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

4.1 Install Piping and Check Gas Supply

Gas piping installation must be in accordance with the latest edition of ANSI Z223.1 and all local codes. In Canada, the installation must be in accordance with CAN/ CSA B149.1 and all local codes that apply.

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 equal to or less than 1/2 psi (3.5kPa).

The heater and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in

excess of 1/2 psi (3.5 kPa).

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WARNING

The JXi pool and spa heaters are designed for use with either natural gas or LP gas. Check the rating plate on the front of the combustion chamber to be sure that the heater is designed to use the type of gas being supplied. DO NOT ATTEMPT TO CONVERT

THIS HEATER FOR USE WITH ANY OTHER TYPE OF FUEL OTHER THAN THE FUEL TYPE FOR WHICH IT WAS CONFIGURED AT THE FACTORY AND WHICH IS MARKED ON THE NAMEPLATE.

CAUTION

Permanent damage to the gas valve will occur if the installation procedures are not followed correctly.

1. Refer to Table 4 for correct gas inlet piping length from the gas meter to the heater. When sizing gas lines, calculate three (3) additional feet of straight pipe for every elbow used.

Distance from Gas Meter

Heater

Size

200

260

330

400

Notes:

• Numbers are for natural gas (0.65 Sp. Gr.) based on 1/2 inch (3.45 kPa) water column pressure drop. Check supply pressure with a manometer, and local code requirements for variations. For LP gas, reduce pipe diameter by one

size, but maintain a minimum 3/4 inch diameter.

• Check supply pressure and local code requirements before proceeding with installation.

• Considerpipettingswhendetermininggaspipesizing.

• Table shows the minimum supply gas pipe size required. Larger pipe size can be used if required by local code or if desired.

• It is critical that the incoming gas supply pressure at the heater is within the maximum and minimum pressure requirements. 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.

Table 4. Supply Gas Pipe Size Requirements*

0-50 feet

(0-15 m)

in. mm in. mm in. mm

1 25 1-1/4 32 1-1/4 32

1-1/4 32 1-1/4 32 1-1/4 32

1-1/4 32 1-1/4 32 1-1/2 38

1-1/4 32 1-1/2 38 1-1/2 38

2. Check the gas meter to make sure it will supply enough gas to the heater and any other appliances using the same heater.

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.

3. Install a manual gas shutoff valve for service and safety.

50-100 feet

(15-30 m)

100-200 feet

(30-60 m)

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4. Install a sediment trap and union ahead of the gas controls and outside the heater panels, as shown in Figure 11. Do not use a restrictive gas cock. DO NOT USE FLEXIBLE GAS PIPING, it will

restrict the gas ow to the heater.

PIPE

UNION

SEDIMENT TRAP

Figure 11. Manual Shut-off Valve and Sediment Trap

NOTE: Close shutoff valve and disconnect the heater to

isolate the heater before pressure testing the gas supply system.

5. Connect a manometer to the supply pressure port on the gas valve. While the heater, and when possible, while all other gas burning appliances supplied by the common gas delivery system,

are operating, conrm the gas supply pressure is

correct according to Table 5.

8. Test gas offset pressure. See Section 10. Professional Service and Maintenance.

WARNING

Failure to replace the 1/8 inch NPT gas valve plugs on inlet, gas offset pressure ports, and cap on the manifold pressure adjustment screw, can result in property damage, severe injury, or death.

4.2 Special Precautions for LP Gas

Under the same environmental conditions, liquid propane (LP) gas is more dense than air and will more readily collect in enclosed areas if there is not adequate ventilation. 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 National Fuel Gas Code (NFPA

Z223.1, latest edition), the Liqueed Petroleum Gas Code

(NFPA 58, latest edition), the Natural Gas and Propane Installation Code in Canada (CAN/CSA B149.1, latest

edition), 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 NFPA54 / ANSI Z223.1 MUST be followed for safe and proper operation.

Section 5. Water Connections

54/ANSI®

Gas Pressure Natural Propane

Inches W.C.

Maximum inlet 10.5 14

Minimum inlet 4 4

Gas Offset – 0.2 – 0.2

Notes:

• All readings must be taken while the heater is operating.

• Any adjustments or readings made while the heater is off will result in poor performance and problems.

Table 5. Gas Supply Pressure Requirements

6. If the gas supply pressure is less than required, check for undersized pipe between the meter and

the heaters, a restrictive tting, or an undersized

gas meter.

7. Before operating the heater, test the complete gas supply system and all connections for leaks using a soap solution. Do not use an open ame to test

for leaks.

CAUTION

Some leak test solutions (including soap and water) may cause corrosion or stress cracking. Rinse the piping with water after testing.

5.1 Water Piping Connections

Install pool system components with connections as illustrated in Figure 12.

Pool

main drain

3-way valve

Spa

valve

Pump

Filter

3-way valve

Figure12. TypicalWaterPipingConguration

Chlorinator

Heater

check valve

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Any conguration other than as illustrated in Figure 12

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 switch.

NOTE: When pool equipment is located below the pool

surface, Zodiac Pool Systems, Inc. is not responsible for any large scale water loss, flooding or damage caused by a leak.

The heater must be protected from back-siphoning of water, which can result in dry starts. If there is any chance of back-siphoning, provide a check valve between the

pool and the lter pump inlet.

5.2 Pump Sizing

The internal ow bypass within the heater manifold will accommodate ows delivered to the heater from a

minimum of 30 gallons per minute (gpm) to a maximum

ow of 120 gpm, depending on the heater model. A

manual bypass valve should be installed when the pump

ow exceeds 120 gpm.

To install a manual bypass valve:

1. Connect ball valve valve between water inlet and outlet (Figure 13).

Model Min gpm (lpm) Max gpm (lpm)

200 30 (114) 120 (454)

260 30 (114) 120 (454)

330 30 (114) 120 (454)

400 30 (114) 120 (454)

Table 6. Recommended Flow Rate Adjustment

3. Remove the valve handle to avoid tampering.

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 flow for a

filter, remember that a “dirty” filter can typically add 10 psi of additional head loss (23 extra feet of head). This must be considered when sizing a pump for a new pool system.

Pump Sizing for Replacement in an Existing Pool:

Heater

IN OUT

Handle

Ball Valve

Figure 13. Install Manual Bypass Valve

IMPORTANT

The system water pump must be capable of providing no less than 30 gpm of flow through the heater. Flow rates at less than 30 gpm may cause nuisance operation causing the heater to turn off or damage to the heater.

2. Adjust the valve to bring the ow rate within the

acceptable range (see Table 6).

If the JXi heater replaces a different model of heater, determine if the existing pump is capable of providing the

minimum ow of no less than 30 gpm indicated in Table 6 for the specic model. JXi heaters are high efciency

heaters. Heaters typical of this construction may have higher head loss characteristics than the one being replaced.

IMPORTANT

Heater failure due to insufficient water flow is not covered under warranty. See measurements in the Head Loss Chart, Figure 14.

Page 18

Head Loss - JXi Heaters

 

Design Pressure Drop (psi)

Design Head Loss

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 

(ft head)

             

NOTE: Head Loss

Data for Models 200 and 330:

TBD

Flow Rate (gpm)

Figure 14. Head Loss Chart

5.3 Plumbing Connections

The heater has a standard 2 inch water header and coupling design. With this feature, only nominal two inch PVC or CPVC may be connected to the heater. However, by installing the appropriate pipe adapters and two (2) short pieces of two-inch plastic pipe (supplied by the installer),

any size existing pipe may be tted to the heater.

Optional Water Inlet Piping

The water inlet can be piped in one of two possible

congurations. The heater comes with a Zodiac

Sweep Elbow for increased hydraulic performance and

efciency. The sweep elbow also provides the advantage

of its exclusive interface with the Zodiac AquaLink temperature sensor. The sweep elbow may be installed in the top inlet connection, and the cap and plug with O-ring installed to close off the unused side port (see Figure 15).

This conguration may be preferred for Versa Plumb

piping to mating components

SWEEP ELBOW (provided)

SWEEP ELBOW

Figure 15. Top Inlet Piping Using the Versa Plumb

Sweep Elbow

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Optionally, the top inlet opening may be capped with the union nut and cap, and plug with O-ring provided, then the water inlet port on the side directly above the outlet port may be used. (See Figure 16.)

(union nut, cap and O-ring provided)

OUT

Figure 16. Optional Side Inlet Piping

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.

WARNING

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.

2. After the glue is cured, close the pressure relief

valve on top of the lter.

3. Return all valves to their operating positions.

4. Turn on power to the heater.

5. Turn on the pump to check for water leaks.

6. Restore the gas supply to the heater.

7. Start the system and check for proper water ow.

5.4 Water Pressure Switch Adjustment

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.

The pressure switch is preset at the factory for activation at 2 psi (14 kPa). If the heater is installed below the surface level of the pool, more than two feet above the pool level, or any time the pressure is measured at 1 psi or greater with the system pump off the pressure switch setting must be adjusted.

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 not exceeding 6 feet above the pool water surface or 11 feet below pool water surface. If the heater water connections are outside this range Consult your local Zodiac representative for recommendations.

Make sure the pool lter is clean before making any pressure switch adjustment. A dirty lter will restrict the water ow and the pressure switch cannot be adjusted

properly.

To adjust the water pressure switch:

NOTE: It is recommended that a Pressure Release Valve

(PRV) be installed prior to taking any of the steps below. See section 5.7

To install the Sweep Elbow:

1. Clean the cut ends of the pipe and both ends of the sweep elbow(s) with an appropriate NSF approved All Purpose cleaner/primer. Glue the sweep elbow(s) onto the cut pipe ends using an appropriate All Purpose NSF approved adhesive/ glue.

NOTE Zodiac Pool Systems, Inc. recommends Weld-On

724TM PVC to CPVC Cement to glue Schedule 40 PVC.

1. Set the heater control to the “OFF” mode.

2. Remove the header side panel to access the water

pressure switch.

3. Start the lter pump and conrm by means of a

voltmeter that the pressure switch closes (if the switch fails to close, replace it with a switch that has a lower minimum setting).

4. Set the heater control to either POOL or SPA.

Heater should start.

5. With your ngers, turn the adjustment sprocket

very slowly clockwise until the heater goes off. (See Figure 17.)

Page 20

Slowly turn adjustment sprocket clockwise until heater goes off

Figure 17. Adjust Pressure Switch

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

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6. Slowly turn the pressure switch adjustment sprocket counterclockwise one-quarter turn. The heater should come back on.

7. Check the adjustment by turning the lter pump

OFF. The burners should shut off immediately.

If they do not, restart the lter pump and repeat

Steps 6 and 7. Check the adjustment again.

8. Return the pool temperature control to the desired temperature.

It may be necessary to repeat these steps to get a proper setting. The switch must be set so that the heater will not

re unless the pump is running. If a proper setting cannot

be reached, contact the factory service department.

5.5 Check Valve Installation

When any equipment is located below the surface of the pool or spa, back-siphoning can occur, which is when the pump stops and a pressure-suction differential is created. Check valves should be installed in the piping system to isolate the equipment from the pool or spa if there is any chance of back-siphoning. Always install a check valve if there is a chemical feeder installed in the system (see Section 5.8).

outlet line is downstream of the heater and a positive seal noncorrosive check valve is installed between the feeder and the heater.

5.6 Reversing the Water Connections

The JXi heater is shipped with water connections on the right side, but the top panel can be rotated to adapt to leftside water connections. This procedure involves turning the heater and then removing and rotating the top panel of the heater. The heater wiring procedure must be done only by a trained service technician.

5.7 Pressure Relief Valve Installation

A pressure relief valve (PRV) is recommended in all installations, and is mandatory in any installation in which

the water ow can be restricted between the heater outlet

and the pool/spa.

A pressure relief valve is not supplied with the JXi heater. However, it is recommended that a pressure relief valve be installed and may even be required by local codes. Be sure to check any applicable installation codes in your area to determine whether a pressure relief valve is required.

The maximum working pressure of this heater is 50 psi. Be sure to take into consideration the maximum allowable pressure of the other components in the system when selecting a PRV. Any pressure relief valve installed must comply with provisions of the standard described in

ANSI

To install a pressure relief valve:

Z21.22 for the United Sates or CSA 4.4 in Canada.

1. Locate the threaded boss on the outlet port of the in/out header (beside the “out” arrow). See Figure

18.

2. Note the dimple at the center of the blind bottom of the boss. Using the dimple to center the drill bit, drill a 1/4" diameter hole through the bottom of the boss, taking care not to damage he surrounding plastic threads. (TIP: Drilling a

1/8" diameter hole rst will help prevent thread

damage.)

WARNING

A check valve can interfere with the proper operation of certain Suction Vacuum Release System (SVRS) products. To avoid possible entrapment hazard, serious injury, or death, make sure to review the operation/owners manual of your particular SVRS product before installing the check valve.

Do not install any shutoff valve in the piping between the heater outlet and the pool, unless it is being used as a diverter valve. Always use care when installing chemical feeders so that there is no back-siphoning of chemical

into the heater, lters, or pump. Make sure the feeder

WARNING

Drilling through plastic can often cause the drill bit to ‘grab’, causing the drill motor to twist in your hand.

Holddrillrmlytoavoidpotentialinjury.

NOTE: The fittings must be installed immediately after the

outlet with no valves or other components inbetween. The pressure relief valve must be installed at the outlet port. Do not install at either of the header inlet ports.

3. Install a brass 3/8 NPT x 3/8 NPT x 3" long pipe

nipple into the boss, using 5 to 6 wraps of Teon

tape on the threaded end. Do not overtighten. See Figure 18.

Jandy

Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

CAUTION

UseTeon® tape only on the threads of the pipe nipple

attachment to the plastic header. Do not use any pipe compound or pipe dope on the threads or any part that comes into contact with the plastic headers. These compounds may damage the header over a period of time.

3/4-inch NPT PRV

Heater Water Out

2-inch Tee

3/8-inch NPT nipple

3/8-inch NPT

3/4-inch NPT to 3/8-inch NPT reducer

ENGLISH

NOTE: To ensure the continued proper operation of the

pressure relief valve, the valve should be tested once a year. To test, lift the lever with the circulation system running to ensure that water will pass through. When the lever is down, there should be no leaks from the outlet.

Page 21

5.8 Auxiliary Components, Chlorinators, Ozone Generators, and Sanitizing Chemicals

The JXi heater is manufactured with materials that are not compatible with high concentrations of ozone, chlorine, bromine, or other sanitizing chemicals. Heater damage caused by excessive chemicals or improper ozonization is not covered by the Zodiac Pool Systems, Inc., warranty. Be sure to adhere to the following:

• When ozone is injected upstream of the heater, install an offgas mixing chamber, or an ozone bypass system between the heater and the ozone injector to prevent ozone and air from entering the heater.

• When chemical feeders are used, plumb the feeder downstream of the heater and install an in-line check valve between the heater and the feeder (a minimum of 18 inch is required between the heater and the check valve).

• Wire any electrical chemical feeder so that it cannot

operate unless the lter pump is running. If the feeder

has an independent clock control, synchronize it with

the lter clock.

Figure 18. Pressure Relief Valve Installation

4. Wrap 5 or 6 turns of Teon tape on the end of

the pipe nipple and install a 3/8 NPT brass elbow while holding the pipe nipple from rotating. Orient the elbow to point straight up. See Figure 18.

5. Install a brass 3/4 NPT female to a 3/8 NPT male

pipe adapter to the elbow using 5-6 turns of Teon

tape on the male end of the adapter. See Figure 18.

6. Install the pressure relief valve on the elbow.

Use 5-6 turns of Teon tape on the male end of

the valve. Install the pressure relief valve so it is vertical. See Figure 18.

7. Install a drain pipe from the pressure relief valve outlet to a safe area. This is a precaution to prevent the possibility of personal injury or property damage in the event scalding water is discharged from the pressure relief valve. Install the drain pipe so that there is no trapped or standing water in the piping. Drain piping must be facing down, terminating with a threadless nipple,

no less than 6” from oor. It must be open with no

reducers or shut-off valves or other restrictions.

• Never deposit chemicals directly in the pool skimmer.

Section 6. Electrical

Connections

WARNING

ELECTRICAL SHOCK HAZARD. This heater contains

wiring that carries high voltage. Contact with these wires may result in severe injury or death.

CAUTION

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

6.1 General Information

Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the heater door.

The heater must include a denite means of grounding.

There is a bonding lug on the right side of the heater,

where a bond wire must be attached. For specic wiring

connections, see Figure 19.

Page 22

die line, does not print

H0402900 Rev D

6.25 x 7.0

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

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OPTIONAL

BYPASS

Alternate 120V Wiring*

120 VAC

NEUTRAL

240 VAC HEATER POWER SUPPLY

HOT

R BK G

WATER

TEMP

COIL/AIR TEMP

GAS

VALVE

USER INTERFACE1

BK O BL

HEATER POWER SUPPLY

Voltage Selector Card Must Be Rotated.

WATER TEMP SENSOR

UNIVERSAL CONTROLLER USER INTERFACE

POWER INTERFACE

BK O BL R

ACN1

ACH1

UNIVERSAL CONTROLLER POWER INTERFACE

W BK BL

BK R Y BL W

HIPRESS/ HILIMIT

W WWBL

LIMIT

SWITCH

57˚C

(135˚F)

LOPRESS/ FUSELINK

O VGY

TRANSFORMER

WATER PRESS

LIMIT

SWITCH

66˚C

(150˚F)

24 VAC

BLOWER MOTOR

REMOTE

SPA POOL COM

FUSE

FAN/ LOUVER

PUMP

COMP/ IGN

24VAC

REV VALVE

BK/Y

Y/BK

J3 CONNECTOR

VENT

TEMPERATURE

LIMIT

240˚C

(464˚F)

R Y

IGNITION CONTROL

IGN

L1 L2

120

GY BK

HOT SURFACE IGNITER

TO COMBUSTION

LOUVER STARTER

AIR

USED)

(IF TO PUMP STARTER

CONTACTS (IF USED)

R 24

VAC

IGN FS

FV+

FV-

PSW

Y/BK

Factory Wired 24V Factory Wired 120V/240V

BK - BLACK BK/Y - BLACK WITH YELLOW TRACE BL - BLUE BR - BROWN G - GREEN

WATER PRESS SWITCH

GY - GRAY O - ORANGE R - RED V - VIOLET W - WHITE Y - YELLOW Y/BK - YELLOW WITH BLACK TRACE

BR Y

Y/BK

GNDVAL

AIR FLOW SWITCH

BK/Y

BR Y GAS VALVE

CIRCUIT BOARD FOR OPTIONAL BYPASS

BL/W

BYPASS

CONTROLLER

BK/Y

SWITCH

ACTUATOR

Figure 19. JXi Connections/ Schematic Wiring Diagram

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

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Page 23

6.2 Service Access

The electrical component panel may be rotated up and away from the heater body for easier access to the electrical system. With the front panel removed, press the tab in the raceway (as shown in Figure 20) , then rotate the panel upward. The latch should hold in place.

Press Tab To Release

Lift Up To Latch

Figure 20. Electrical System Service Access

Press to Release and Return to Down Position

WIRES AS SHIPPED

CONNECT WIRES INSIDE HEATER

Figure 21. Field Wiring Connections

CONDUIT ELBOW

6.3 Main Power

Electrical wiring must be in accordance with the latest edition of the National Electric Code National Fire Protection Association in Canada, the Canadian Electrical Code (CSA unless local code requirements indicate otherwise.

The heater comes factory-wired intended for use with 240

Volt, 60 Hz AC eld electrical supply. To use 120 Volt,

60 Hz AC requires changing the position of the voltage selector board on the power distribution board. This must

be done by a certied electrician only, as with all wiring.

Be sure that the power source to the heater is turned off or disconnected before servicing.

NOTE If the heater is converted to accept 120V, the “Hot”

wire of the 120V power supply has to be connected to the black wire (ACH1) on the power distribution board and the “Neutral” wire of the 120V power supply has to be connected to the red wire (ACN1) of the power distribution board.

To wire the heater to 120V or 240V/60 Hertz (Hz):

1. Remove the front door panel of the heater.

2. Connect the wires from the power source to the leads on the heater (Figure 21).

(NEC®), ANSI®/

(NFPA®) 70, or

C22.1)

6.3.1 Converting the Heater for a 120V Power Source

WARNING

ELECTRICAL SHOCK HAZARD. 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 plumbing that may have caused electrical devices in the surrounding area to get wet.

The heater is congured at the factory to operate at 240

VAC, 60 Hz; to convert.the heater to 120 Volt, 60 Hz AC, reverse the voltage selector board on the power distribution board before the heater is connected to a power source:

To convert the heater to 120V 60 Hertz (Hz):

1. Identify the power distribution board on the heater to the right of the ignition control on the raceway (Figure 22).

NOTE No external junction box is required.

Page 24

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Jandy

do so will void the Zodiac Pool Systems, Inc. warranty.

Additionally, in the United States the National Electrical

(NEC®) and in Canada the Canadian Electrical

Code Code (CEC), require that all metallic components of a

pool structure, including reinforcing steel, metal ttings

and above ground components be bonded together (forming an “equipotential bonding grid”) with a solid copper conductor not smaller than an 8 AWG (6 AWG in Canada).

Ignition Control

Power Distribution Board

Figure 22. Power Distribution Board

2. Cut the plastic wire tie fastening the voltage selector board in place and discard it. Be careful not to abrade or damage any wiring or other components. Unplug the voltage selector board from the receptacle. See Figure 23.

POWER

DISTRIBUTION

BOARD

WIRE TIE

VOLTAGE

SELECTOR

BOARD

Figure 23. Power Distribution Board With Voltage

Selector Board Installed for 240 VAC

3. Rotate the voltage selector board 180° and reinsert it into the receptacle so that the hole in the board is not visible. Be sure that the board is securely seated in the receptacle.

NOTE The voltage selector board is keyed so that it will fit in

only one (1) direction for either selected voltage (either side of the board).

The NEC and CEC also require that the equipment and/ or appliances associated with the pool water circulating system, including, but not limited to, pump motors and heaters, be bonded together as part of the equipotential bonding grid. Zodiac Pool Systems, Inc. provides a special labeled bonding lug on the right side of the heater to accommodate this requirement.

6.5 Optional Remote Controls

The JXi pool/spa heater controls can be wired for remote operation. All Zodiac permit the heater to be operated by remote control.

If you are setting up a new pool or spa system, call your local Jandy Pro Series distributor or Zodiac Pool Systems, Inc., 800.822.7933, for information on the correct Control System to meet your needs.

AquaLink® Control Systems will

WARNING

RISK OF ELECTRIC SHOCK WHICH CAN RESULT IN SERIOUS INJURY OR DEATH. Before attempting installation or service, ensure that all power to the device is disconnected/turned off at the circuit breaker.

Electrical wiring must be in accordance with the latest edition of the National Electric Code (NEC), ANSI National Fire Protection Association (NFPA local code requirements indicate otherwise.

Refer to Figure 19 for electrical connections and wiring schematic.

) 70, unless

6.4 Bonding

CAUTION

To prevent premature failure of the appliance resulting from stray voltages and voltage differentials, the heater must be bonded to other equipment which is part of the pool plumbing system with a solid copper wire not smaller in diameter than 8 AWG (6 AWG in Canada).

Zodiac Pool Systems, Inc., requires that the appliance be connected to a “bonding loop” that includes all electrical equipment in the system and on the equipment pad. Bonding lugs must be connected with a solid copper wire not smaller than 8 AWG (6 AWG in Canada). Failure to

6.5.1 Connecting to a Remote Pool-Off-Spa Selector (3-Wire Connection)

Install the Remote Pool-Off-Spa Selector:

1. Turn off the power to both the pool/spa control system and the heater unit.

2. Remove the front panel door.

3. Run the wires from the pool/spa control system through the opening located on the lower right or left hand side of the heater.

4. Connect the wiring from the pool/spa control system to the heater remote control terminal.

5. Connect the three wires to Spa, Pool & Common terminals of the J6 terminal bar.

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

ENGLISH

Page 25

6. Reinstall door panel.

7. Restore power to the heater and the pool/spa control system.

ConguretheControlPanel:

1. Make sure the control is OFF.

2. Press and hold MENU, then the POOL and SPA buttons for 7 seconds to access Service Setup mode.

NOTE The display will revert back to OFF after 1 minute

since the last key press.

Press Up or Down to display REMOTE.

4. Press MENU, REMOTE OFF (default remote) is displayed.

5. Use Up or Down to scroll through the Remote options until

HI-LO-COM is displayed, then press

MENU to select..

6. Press POOL or SPA to exit Service Setup mode.

6.5.2 Connecting to an AquaLink® Control System or Remote TSTAT (2-Wire Connection)

An interrupt (on/off-type) remote can be connected as a Remote TSTAT to turn the heater on or off but not perform any other function. When using this type of connection, remember to set the heater control to “SPA” and set the thermostat control to maximum.

Consult with the Zodiac Pool Systems, Inc. Technical Support Department, 800.822.7933 (in Canada:

888.647.4004), for questions about installing non-Zodiac

remote controls.

Install the Remote TSTAT:

1. Turn off the power to both the pool/spa control system and the heater unit.

2. Remove the front panel door.

3. Run the wires from the pool/spa control system through the opening located on the lower right or left hand side of the heater.

4. Connect the wiring from the pool/spa control system to the heater remote control terminal.

5. Connect the two wires to Pool and Common (not Spa) on the J6 terminal bar.

6. Reinstall door panel.

7. Restore power to the heater and the pool/spa control system.

NOTE If you install a time clock to control the filter pump

operation, it is recommended that the time clock have its own low voltage (Fireman’s) switch to turn off the heater before turning off the pump. The switch should shut off the heater about 15 minutes before the filter pump shuts off. This will allow for a more efficient operation by removing any residual heat contained in the heat exchanger back to the pool.

CAUTION

To avoid damage to the heater, do not connect the power supply of the heater to the output side of the clock if your time clock simply interrupts the high

voltage power supply or has a high voltage output. Doing so will prevent the blower from purging the residual heat from the heater when the heater turns off. The blower must be allowed to run for 45 seconds after the heater shuts off.

ConguretheControlPanel:

1. Make sure the control is OFF.

2. Press and hold MENU, then the POOL and SPA buttons for 5 seconds to access Service Setup mode.

NOTE The display will revert back to OFF after 1 minute

since the last key press.

3. Press MENU, REMOTE OFF (default remote) is displayed.

4. Use Up or Down to scroll through the Remote options until press MENU to select.

5. Press POOL or SPA to exit Service Setup mode.

6. Press SPA to adjust the setpoint to the maximum 40°C (104°F).

6.5.3 “Smart” Communication via RS-485

To provide “smart” communication between the JXi and a power center board (PCB) (AquaLink RS, AquaLink PDA, and AquaLink Z4) through a red four-pin RS485

connector, your PCB must have the appropriate rmware. To determine the REV of the AquaLink RS PCB rmware

in your system, refer to Table 7.

Components

RS485

Connectors

JVA Sockets

24 VAC

Relay Sockets

24 VDC

Table 7. AquaLink RS Power Center Board

Identifying Features

REMOTE TSTAT is displayed, then

REV MMM

or lower

One (1) set of

four (4)

Located on top of

board

10 total sockets.

Eight (8) located on

bottom, two (2) on

top of board

REV N

or higher

Two (2) sets of

four (4)

Located on bottom

of board

11 total sockets.

All located on

bottom of board.

Page 26

Filter Pump

Solar Pump

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

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Do not connect more than two (2) wires to any of the terminals in the Control System when connecting peripheral devices. If connecting the heater to the control system creates this situation, then a Multiplex PCB kit must be used. Call your distributor or Zodiac Pool Systems, Inc., to order the kit.

Indoor Controller

654321

109876 54321

4321

To Sensors, etc.

To Remote

To Controller

(green terminal bar)

(brown terminal bar)

(red terminal bar)

RS6 & RS8 ONLY

RS8 ONLY

RESET

AUTO

SERVICE

TIME OUT

POOL MODE

SPA MODE

AUX 6

AUX 3

AUX 7

AUX 2

AUX 5

AUX 4

AUX 1

FILTER PUMP

SPA DRAIN

SOLAR

HEATER

Power

SPA FILL

Center

Bezel

Connection to

Controller:

RS485 Connectors

4321

RESET

AUTO

SERVICE

TIME OUT

Aux 2

Aux 1

Relay Sockets

24 VDC

4321

FILTER PUMP

Aux 3

Aux 4

AUX 1

Aux 6

Aux 5

Spa

Side

Switch

654321

AUX 3

AUX 2

Aux 7

Sensors

and

Heater

10 9876 54321

RS6 & RS8 ONLY

RS8 ONLY

AUX 6

AUX 7

AUX 4

AUX 5

Intake

Return

JVA Sockets

24 VAC

HEATER

Solar

Cleaner

POOL MODE

SPA MODE

SPA DRAIN

SOLAR

SPA FILL

Spare

Elect. Htr.

Relay Sockets

24 VDC

Figure26. PCBwithrmwareREVNorhigher

Power Center

RS Control

System

4 Conductor

JXi Control

LXi Control

4 3 2 1

GR Y BK R

Figure 24. Wiring the JXi to a Zodiac® Remote

Return

HEATER

Solar

Cleaner

SOLAR

Relay Sockets

24 VDC

Elect Htr

Solar Pump

POOL MODE

SPA MODE

SPA DRAIN

SPA FILL

Connection to

Controller:

RS485

Connectors

4321

Spa Side

Switch

654321

RESET

AUTO

SERVICE

TIME OUT

Sensors and

Heater

10 9876 54321

AUX 3

AUX 2

AUX 1

FILTER PUMP

JVA Sockets

24 VAC

Intake

RS6 & RS8 ONLY

RS8 ONLY

AUX 6

AUX 7

AUX 4

AUX 5

22 Gauge

Wire

If your PCB rmware is REV MMM or lower, connect

via a 2-wire connection. See Section 6.5.2.

IfyourPCBrmwareisREVNorhigher:

1. Turn off the power to both the heater and the controller.

2 Open the power center enclosure and remove the

front dead panel.

NOTE Only an AquaLink

"N", or higher, will support the heater interface. Refer to Table 7 and Figures 25 and 26 to determine the REV of your system's firmware. If it is "N" or higher, continue with these procedures. If it is MMM or lower, follow the procedures in Section 6.5.2.

NOTE Only a PDA System with firmware revision 4.1, or

higher, will support the heater interface.

RS System with firmware revision

3. Use 22 gauge 4-conductor wire to run between the heater and the RS control and match the wire color order (Figure 24).

4. The wires coming from the heater can be “doubled up” on the red terminal bar with the four (4) wires from the indoor controller.

Aux 4

Aux 1

Aux 2

Relay Sockets

24 VDC

Aux 3

Aux 5

Relay Sockets

24 VDC

Figure25. PCBwithrmwareREVMMMorlower

Aux 6

Aux 7

NOTE If you need to install more than two (2) wires in each

terminal, order a Zodiac

Multiplex PCB Kit, which includes the Multiplex Board (Zodiac part # 6584). Never put more than two (2)wires into each of the pins of the terminal bar.

5. Check all wiring, then apply power to both the heater and the control system. Verify operation in either Service or Auto mode. Refer to your Control System manual for operating instructions.

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

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Page 27

When the heater is connected to an external controller, all functionality of the heater control panel is disabled, therefore heater functions can be controlled only from the controller.

To restore heater control panel functionality after connecting to an external controller:

1. Turn power to the heater ON. The heater display shows:

MENU TO DISABLE

JANDY REMOTE ONLINE PUSH

2. Press MENU to remove message and restore functionality to the heater control panel.

To return functionality to RS:

1. Turn power to the heater OFF then back ON.

2. Press MENU for 5 seconds to access Setup Mode.

3. Choose JANDY REMOTE.

Section 7. Operating Instructions

7.1 First-Time Start-Up Procedure

WARNING

Vent pipes and heater tops get hot! These surfaces can cause serious burns. Do not touch these surfaces while the heater is in operation.

Do not use this heater if any part has been under

water.Immediatelycallaqualiedservicetechnicianto

inspect the heater and replace any part of the control system and any gas control which has been under water.

Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the heater.

Do not attempt repairs on the gas controls or appliance. Tampering is dangerous and voids all warranties.

1. Conrm that pool water is owing normally

through the pool system and equipment.

2. If it is a new pool or spa installation, operate the

lter pump with the heater off long enough to

completely clean the water. This will remove any installation residue from the water.

3. Clean the lter before starting the heater.

4. Start the heater in either Pool or Spa mode (see section 7.6, Operating the Heater).

5. Start the heater (see section 7.2, Lighting the Burner).

6. When the heater starts, conrm there is adequate

water ow by touching the outlet header. The

header should not be hot. Normally, water temperature will rise only a few degrees as it passes through the heater, and a “hot” header or

pipe indicates low water ow.

If ignition is unsuccessful:

If ignition is unsuccessful, or the ame fails during normal

operation, the ignition control shuts off the gas valve. The heater will then go through a post purge process and attempt to establish stable combustion two additional times. If ignition is unsuccessful after three attempts, the system shuts down and will automatically attempt to restart after one hour.

To reset the heater to provide three (3) attempts to start:

1. Turn OFF the control then turn it back ON.

2. Access either the Pool or Spa mode.

7.2 Starting the Heater

Follow the instructions outlined below to start the heater. Refer to the Lighting and Shutdown Instructions label on the inside lid panel of the heater (Figure 29).

WARNING

If you do not follow the instructions below exactly, a

reorexplosionmayresult,causingpropertydamage,

personal injury or loss of life.

IMPORTANT SAFETY INFORMATION

Read Before You Start:

(A) This appliance does not have a pilot light. It

is equipped with an ignition device, which automatically lights the heater. Do NOT try to light the burners by hand.

(B) BEFORE OPERATING, smell all around the

appliance for gas. Be sure to smell next to the

oor because some gas is heavier than air and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS

- Do not try to light any appliance.

- Do not touch any electric 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.

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control switch. Never use tools. If the switch appears broken or will not move, don’t try to

repair it, call a qualied service technician. Force or attempted repair may result in re or

explosion.

(D) Do not use this appliance if any part has been

under water. Immediately call a qualied service

technician to inspect the appliance and to replace any part of the control system which has been under water.

OPERATING INSTRUCTIONS

Refer to the Lighting and Shutdown Instructions (Figure

29) label located on the heater on the inside of the top panel.

1. STOP! Read IMPORTANT SAFETY INFORMATION in previous section.

2. Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows GAS HEATER IS OFF.

3. Turn off all electrical power to the heater at the junction box.

NOTE: This appliance is equipped with an ignition

device which automatically lights the heater. Do NOT try to light the burners by hand.

4. Remove the heater door panel.

5. Toggle gas control switch to OFF position. (See Figure 27).

GAS CONTROL ON/OFF SWITCH

7. If no gas is detected, toggle gas control switch to ON position.

8. Replace the door panel.

9. Turn on electrical power to the heater.

10. Turn the controller ON by pressing POOL or SPA and set the temperatures as necessary.

NOTE: If the heater does not start, check that the filter pump

is ON, the filter is clean and that water is flowing to the pool. If the heater still does not operate, follow the procedure below (Shut Down) to turn off gas supply to

the heater.

WARNING

Whentheheaterisredforthersttime,the

combustion chamber refractory binder material is

drivenoutbytheheatoftheame.Whitesmokeand/

or sharp odors may be emitted from the vent during this period. Do not inhale combustion product fumes at any time, and especially when these fumes are being emitted. This “burn-in” period will last only a few minutes.

TO TURN OFF GAS TO THE HEATER

1. Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows GAS HEATER IS OFF.

2. Turn off all electrical power to the heater at the junction box.

3. Remove the heater door.

4. Turn the gas valve control switch to OFF.

5. Shut off the external gas supply valve to the heater.

6. Replace the door panel.

Figure 27. Gas Valve

6. Wait ve (5) minutes to clear out any gas, then smell for gas, including near the oor. IF YOU

SMELL GAS, STOP! Follow instructions in section (B) WHAT TO DO IF YOU SMELL GAS in IMPORTANT SAFETY INFORMATION section.

7.3 Normal Operation

During normal operation, the control system measures

the temperature of the water owing through the heater

and will begin the start-up process if the temperature is below the set point. If the blower pressure switch senses

adequate airow when the blower starts, the ignition

sequence begins. Following a pre purge, the igniter is

energized, then the gas valve opens. As long as a ame

is sensed at the burner, operation continues until the temperature of the water entering the heater reaches the temperature control setting.

7.4 Operating the Controller

Unless the heater is connected to a remote controller, all operations are set up and programmed through the control panel on the top of the heater (Figure 28).

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GAS HEATER IS OFF PRESS POOL OR SPA

POOL

Figure 28. Main Control Panel

NOTE

The display reverts to OFF after one minute of

inactivity since the last key was pressed.

SPA

7.5 Setting up Heater Options

Before using the heater for the rst time, set up the

following options:

• Languages: Set a default display language

• Temperature Scale: Set temperatures to be displayed in either Celsius or Fahrenheit scale

• Display Light Timeout:

Set the display light to turn off after a specic interval

of inactivity

To Program the Display Language:

1. Make sure the control is OFF.

2. Press and hold MENU for 5 seconds to access

Setup.

3. Press Up or Down to display:

SETUP LANGUAGE

4. Press

MENU.

SELECT LANGUAGE ENGLISH (default

language) is displayed.

5. Press Up or Down to scroll through available languages.

6. Press

7. Press

To Program the Temperature Scale (F or C):

MENU to select a language.

POOL or SPA to exit the User Setup mode.

1. Make sure the control is OFF.

2. Press and hold MENU for 5 seconds to access Setup.

3. Press Up or Down to display:

SETUP TEMPERATURE SCALE

4. Press

MENU.

SELECT TEMP SCALE °F: (default scale) is

displayed.

SELECT USER

5. Press Up or Down to toggle between

6. Press

7. Press

To Program Display Light to Turn Off Automatically:

MENU to select scale.

POOL or SPA to exit the User Setup mode.

°F and °C.

1. Make sure the control is OFF.

2. Press and hold MENU for 5 seconds to access

Setup.

3. Press Up or Down to display:

SETUP DISPLAY LIGHT

4. Press

MENU.

SELECT USER

SELECT DISPLAY LIGHT 2 MIN TIMEOUT

(default display turn off time setting) is displayed.

5. Press Up or Down to choose:

DISPLAY LIGHT 2 MIN TIMEOUT, DISPLAY LIGHT LIGHT OFF

or DISPLAY LIGHT ON.

6. Press POOL or SPA to exit the User Setup mode.

7.6 Operating the Heater

To Turn on Pool Heat:

1. Press

2. The control unit displays

NOTE: The default setting for pool temperature is

3. Press Up or Down to change temperature set

NOTE: After 5 seconds of inactivity, the new

4. When the water temperature falls to 1° below the

To Maintain Pool Heat (optional Relay and Wiring

If connected, the Maintain Heat mode monitors the pool water temperature 24 hours a day by turning the pool pump on and sampling the water temperature. When the water temperature drops below the programmed temperature set point, the controller automatically starts heating the pool.

1. Press POOL.

2. Press MENU.

3. Press Down to display:

POOL.

SET: ° with the current

temperature setting.

80°F (26°C).

point.

temperature will be stored as the set point.

temperature setting, the controller starts the heater. The LED is red to indicate the pool is currently heating

Required)

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MAINTAIN POOL HEAT

Press MENU.

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Green LED lights and the control unit displays

SET: ° with the current temperature setting.

5. Press Up or Down to change temperature set point.

NOTE: After 5 seconds of inactivity, the new temperature will

be stored as the set point.

To Turn on Spa Heat:

1. Press SPA.

2. The control unit displays

SET: ° with the current

temperature setting.

NOTE: The default setting for spa temperature is

102°F (38°C).

3. Press Up or Down to change temperature set point.

GAS HEATER IS OFF PRESS POOL OR SPA.

7.7 Temperature Set Point Lock

Once you have programmed pool temperature and spa temperature set points, you can lock them so that they may not be changed inadvertently.

To Lock Temperature Set Point:

1. Press POOL to lock pool temperature set point.

SPA to lock spa temperature set point.

Press

2. Press and hold Up and Down at the same time for 5 seconds. The unit displays:

To Unlock Temperature Set Point:

1. Press POOL or SPA to unlock either set point.

2. Press and hold Up and Down at the same time for 5 seconds. The unit displays:

SET POINT LOCKED.

SET POINT UNLOCKED.

NOTE: After 5 seconds of inactivity, the new

temperature will be stored as the set point.

4. When the water temperature falls to 1° below the temperature setting, the controller starts the heater. The LED is red to indicate the spa is currently heating

To Maintain Spa Heat (optional):

1. Press SPA.

2. Press MENU.

3. Press Down to display:

MAINTAIN SPA HEAT

Press MENU.

Green LED lights and the control unit displays

SET: ° with the current temperature setting.

5. Press Up or Down to change temperature set point.

NOTE: After 5 seconds of inactivity, the new

temperature will be stored as the set point.

7.8 Shutting Down the Heater

Refer to the Lighting and Shutdown Instructions label on the inside lid panel of the heater (Figure 29).

Complete shutdown instructions are as follows:

1. Set temperature thermostat controls to their lowest setting and turn off the controller. Make sure the display shows OFF.

2. Turn off all electrical power to the heater at the junction box.

3. Remove the top panel of the heater.

4. Turn the gas valve control switch to OFF.

5. Shut off the external gas supply valve to the heater.

6. Replace the top panel.

To Turn the Heater Off:

When the control panel is OFF, the screen displays:

die line does not print

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FOR YOUR SAFETY READ BEFORE OPERATING

WARNING

(A) This appliance does not have a pilot light. It is equipped with an ignition device which automatically lights the heater. Do NOT try to light the burners by hand. (B) BEFORE OPERATING, smell all around the appliance for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

- Do not try to light any appliance.

- Do not touch any electric 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.

(C) Use only your hand to activate the gas control switch. Never use tools. If the switch will not move by hand, do not try to repair it. Call a qualified service technician. Force or attempted repair may result in fire or explosion. (D) Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system which has been under water.

OPERATING INSTRUCTIONS

1. STOP! Read the safety information above on this label.

2.* Set the thermostat to lowest setting and turn appliance switch to OFF.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition device which automatically lights the heater. Do not try to light the burners by hand.

5. Remove the top panel.

6. Turn gas control switch to OFF position

7. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to next step.

8. Turn gas control switch to ON position.

POUR VOTRE PROPRE SÉCURITÉ LISEZ CECI AVANT D’UTILISER LE CHAUFFE-EAU

AVERTISSEMENT

(A) Cet appareil n’est pas muni d’une veilleuse. Il est muni d’un appareil d’allumage qui déclenche le chauffe-eau automatiquement. Ne pas esssayer d’allumer les brûleurs à la main. (B) AVANT DE METTRE EN MARCHE, assurez-vous qu’il n’y a aucune odeur de gaz autour de l’appareil. Assurez-vous qu’il n’y a aucune odeur de gaz près du plancher, car certains gaz sont plus lourds que l’air et on pour effet de s’accumuler au plancher.

- Ne pas essayer de mettre en marche quelque appareil que ce soit.

- Ne touchez à aucun interrrupteur électrique. Ne pas faire usage d’un appareil téléphonique dan votre édifice.

- Contactez immediatement à partir du téléphone d’un voisin votre fournisseur de gaz. Suivez ses directives

- Si vous ne pouvez pas joindre avec votre fournisseur de gaz, appelez le service des incendies.

(C) Utilisez seulement votre main pour opérer le bouton de la commande de gaz. Ne jamais utiliser un outil. S’il est impossible d’opérer le bouton à la main, n’essayez pas de le réparer. Appelez un technicien de service qualifié. L’utilisation d’une force quelconque peut avoir pour résultat un feu ou une explosion. (D) Ne pas utiliser cet appareil si une pièce quelconque a ete submergé. Contactez immediatement un technicien qualifié afin de faire examiner l’appareil et faire remplacer toute piece du système de contrôle ainsi que toute commande de gaz qui aurait été submergé.

1. ARRÊTEZ ! Lisez les directives de sécurité ci-dessus sur cette étiquette.

2.* Réglez le thermostat au plus bas et mettez la commande de l’appareil à la position OFF .

3. Éteignez toute alimentation électrique de l’appareil.

4. Cet appareil est muni d’un dispositif d’allumage qui met le chauffe-eau en marche automatiquement. Ne pas essayer d’allumer les brûleurs à la main.

5. Enlevez le panneau supérieure.

6. Tournez l’interrupteur de commande de gaz jusqu’à la position ON.

7. Attendez pendant cinq (5) minutes afin que le gaz se dissipe.

8. Tournez le l’interrupteur de commande de gaz jusqu’a la position OFF.

9. Replacez le panneau supérieure.

10. Mettez l’appareil sous tension.

Assurez-vous qu’il n’y a aucune odeur de g du plancher. S’il y a une odeur de gaz ARRÊTEZ-VOUS ! Suivez l’étape « B » ci-dessus. S’il n’y a pas d’odeur de gaz, procédez à la prochaine étape.

If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury, or death.

WHAT TO DO IF YOU SMELL GAS

TO TURN

9. Replace the top panel.

10. Turn on all electric power to appliance.

11.* Set thermostat to desired setting and switch appliance from OFF to either POOL or SPA.

12. If the appliance will not operate, check that the filter pump is on, the filter is clean and water is flowing to the pool. Otherwise, follow the instructions "To Turn Gas Off” and call your service technician or gas supplier.

GAS CONTROL SWITCH IN “OFF” POSITION

Si vous ne suivez pas ce directives à la lettre, un incendie ou explosion peut en être le resultat. Ceci causera des dommages aux biens des blessures personnelles ou la mort.

QUOI FAIRE S’IL Y A UNE ODEUR DE GAZ

MODE D’EMPLOI

11.* Réglez le thermostat comme désiré et tournez le bouton de commande de la position OFF à la position POOL ou SPA .

12. Si l’appareil ne se met pas en marche, assurez-vous que la pompe du filtre fonctionne, que le filtre soit propre et qu’il y a

débit d’eau vers la piscine. Autrement suivez les direc-

un tives.

COMMANDE DE GAZ À LA

az, même au niveau

POSITION “OFF”

GAS OFF

(1) * Set the thermostat to lowest setting and switch appliance to OFF.

(2) Turn off all electrical power to the appliance if service is to be performed.

(3) Turn gas control switch to OFF positition.

(4) Replace top panel.

* See manual for details of

operation and thermostat control.

INTERRUPTION DE

L’ALIMENTATION

EN GAZ

(1) * Règlez le thermostat au plus bas et mettre le bouton de commande à OFF.

(2) Interrompez toute alimentation électrique a l’appareil si on doit faire de l’entretien ou réparation.

(3) Tournez l’interrupteur de commande de gaz jusqu’à la position OFF.

(4) Remplacez le panneau supérieure.

* Voir le manuel pour les détails concernant l’opération du contrôle de thermostat.

Page 31

H0415400 REV C

Figure 29. Lighting and Shutdown Instructions Label on Top Panel

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Section 8. Maintenance

WARNING

Do not try to operate the heater if the water temperature is below 40 °F (4°C)

If the heater is not going to be used for an exended period of time and in colder climates, shut it down completely (see Section 7.8, Shutting Down the Heater and refer to the Lighting and Shutdown label inside the top panel of the heater).

8.1 Winterizing

In areas where freezing temperatures occur in winter and the pool or spa will not be used, the pool should be

winterized by a qualied pool service technician:

To Winterize Your Heater:

1. Turn off the electrical supply and the main gas supply to the heater.

2. Remove the heater access panel.

3. Turn off gas supply to the heater following the shut-down instructions. (See Section 7.8 in this manual and/or shut-down instructions inside the top of the heater).

4. Remove the drain plug from the inlet/outlet header

and completely drain the heater before the rst

frost.

5. After all water has drained from the heater, check for mineral buildup in the openings.

6. Inspect the gasket on the drain plug. Store the drain plug in a safe place for winter.

7. Cover the vent grill with plastic so that snow will not accumulate and freeze in the combustion chamber.

8. Remove and drain the pressure switch tubing.

COPPER TUBING

To Start Up Your Heater:

1. Reinstall the drain plug.

2. Uncover the vent grill.

3. Make sure power is supplied to the pump.

4. Turn on the lter pump and circulate water

through the heater for 5 minutes. Check for leaks while circulating.

5. Turn on the main gas supply to the heater at the gas cock outside the heater jacket.

6. Turn on the heater according to the instructions in Section 7.2 or refer to the label inside the top panel of the heater (see Figure 29).

8.3 Inspection and Service

WARNING

Improper installation or maintenance can cause

nauseaorasphyxiationfromcarbonmonoxideinue

gases which could result in severe injury, or death.

The heater is designed and constructed to provide long performance life when installed and operated properly under normal conditions. Periodic inspections, especially at spring start-up, are important to keep your heater

running safely and efciently through the years. Zodiac

Pool Systems, Inc. recommends that the homeowner inspect the heater on a regular basis (especially after abnormal weather conditions), and arrange to have a

professional inspection at least once a year by a qualied

service technician.

WARNING

For your safety, when starting the heater, keep your head and face away from the exhaust grill opening and blower inlet grill to prevent any risk of personal injury. Make sure all doors/panels are securely in place and stand back from the heater.

Figure 30. Pressure Switch Copper Tubing

8.2 Spring Start-up

When winterized, the heater should be reassembled by a

qualied professional technician in the Spring.

Guidelines for Homeowner Inspection:

WARNING

Donotstoreorusegasolineorotherammable

vapors, liquids or chemicals in the vicinity of this or any other appliance.

WARNING

Do not use this heater if any part has been under

water.Immediatelycallaqualiedservicetechnicianto

inspect the heater and replace any part of the control system and any gas control which has been under water.

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1. Keep the top of the heater, under the heater, and surrounding area clear of all debris and combustible materials such as paper, leaves, etc.

If there is a pressure relief valve, check for corrosion in and around the valve. If there is

corrosion, turn off the lter pump and replace the

pressure relief valve.

3. Once a year check that water is running freely through the pressure relief valve. To check, turn on

the lter pump and lift the release lever on the top

of the valve.

4. Be sure combustion air and ventilation openings are not blocked.

Guidelines for Professional Inspection:

1. Check for loose or broken wires and terminal connections.

2. Check the water pressure switch by turning the

lter pump off and on several times. The burner

should go off immediately after the pump stops. The fan will continue to run for 45 seconds after the burner shuts down. An ignition sequence should start shortly after the pump is turned back on.

3. Conduct an inspection of the TRV once a year.

4. Inspect the electrical controls, specically:

a. High limit switches. b. Water pressure switch. c. Automatic gas valve. d. Power interface/Temperature control. e. Vent temperature limit switch. f. Control circuit fuse. g. Ignition control. h. Air pressure switch.

5. Inspect the inlet grill at the blower for blockage, leakage, and corrosion.

6. Inspect the combustion blower for damage.

7. Conduct a normal operating cycle and observe that the sequence proceeds as intended.

8. If the heater is equipped with a pressure relief valve, clean any accumulated corrosion and make sure that water runs freely when lever is lifted.

9. Inspect the outside of the combustion chamber and blower for corrosion and indication of improper operation.

10. Regularly inspect electrical controls for deterioration. Repair and replace as necessary.

11. Visually check the main burner ame. To obtain a

good line of sight, remove the user interface from the top panel of the heater (see Figure 30).

NOTE: If heater top panel has been reversed with water

connections to the left of the user interface control panel, remove heater top to view sight glass.

View Port

Flame

Figure 31. Remove User Interface to View Flame

Section 9. Troubleshooting

9.1 Common Problems

Zodiac Pool Systems, Inc. strongly recommends that you

call a qualied service technician to perform all service and repairs on the heater. To locate a licensed or qualied

technician or independent service company, check your local yellow pages or visit:

com, and click on Dealer Locator.

www.zodiacpoolsystems.

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The following table lists some of the most common problems when running the heater. Most problems occur when the

heater is started for the rst time after installation or at spring start-up.

Symptom Possible Cause Remedy

Pump not operating • No power.

• Pump defective.

• Incorrectly wired.

• Time clock settings not synchronized with

actual time.

Unstable combustion-

(1) heater turns off and on

(2) heater ignites slowly

(3)ameliftsandgoesout

(4)shortyellowstreakedame

Not enough heat

(1) heater is slow to heat up

(2) heater not maintaining set

temperature

Heater pounding or knocking • Waterowthroughheatertoolow.

Low temperature rise • Low water temperature.

• Wrong gas.

• Lean fuel/air mixture— low supply

pressure.

• Lean fuel/air mixture— too much

combustion air.

• Rich fuel/air mixture— high manifold

pressure.

• Rich fuel/air mixture— too little combustion

air.

• Incorrect gas valve offset pressure.

• Heater size inadequate.

• Filter pump not running long enough.

• Failed Thermal Regulating Valve (TRV).

• Heater plumbed backwards.

• Check circuit breakers and power source.

• Replace the pump.

• Recheck wiring.

• Check time clock setting.

• Make sure the gas supply matches the gas type

indicated on the rating plate.

• Correct gas supply pressure to 4.0 “ W.C.

• Increase offset gas pressure. Rotate adjustment

screw clockwise.

• Correct gas supply pressure to 4.0 “ W.C.

• Decrease offset gas pressure. Rotate adjustment

screw counter-clockwise.

• Check offset pressure is set to —0.2” W.C. If this is

set properly, connect manometer to blower throat and

gas valve port to obtain differential. Make sure the

differentialvaluefallswithinthespeciedrangefor

the heater size (see Table TBD).

• Gas meter too small.

• Gas line from meter to heater too small.

• Correct gas supply pressure to 4.0 “ W.C.

• Replace with heater of higher input.

• Check blower inlet grill for obstruction.

• Look for obstruction or closed valve in system.

• Check for damaged internal bypass.

• Variable speed pump set too low

• Dirtylterorbaskets

• Heater is condensing. Flue product moisture will

condense at the start-up until the heater water

temperature reaches the normal operating conditions.

Igniterlightsbutdoesnotre • Gas valve is not ON.

• Air in gas line.

• Gas valve failed.

• No power to gas valve.

• Low gas pressure.

• High burner throat pressure.

• Faulty or broken Thermal Flow Regulator.

• Correct the plumbing.

• TRV failure.

• Flip the switch to “on” position.

• Cycle ignition sequence until air is out of the gas line.

• Replace gas valve.

• Check controls for proper operation.

• Check supply pressure.

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9.2 Service Diagnostic Messages

The controller monitors several functions of the heater. In the event of a malfunction, the controller will display a FAULT message. The following table lists the Heater Service Messages along with potential causes and remedies.

Fault Message Possible Cause Remedy

FAULTPUMP

NO FLOW

FAULTHIGH LIMIT

FAULTFUSELINK/FIELD

FAULTCHECK IGNITION STEPS

FAULTSHORTED H2O SENSOR

FAULTOPEN WATER SENSOR

• Statusmessageindicatingthelter pump is currently turned OFF when the heater system programmed in Maintain Temp mode.

• Pump is not running.

• Low pump pressure.

• Pressure switch fault.

• Variable speed pump set too low.

• Water temperature in heater exceeds the internal limit.

• Limit switch fault.

• Temperature control thermostat failure

• Vent temp limit fault (240°C- Marked with red paint)

• Broken, split, pinched or disconnected air pressure switch.

• Fan not operating.

• Fan running slow or premature fan failure.

• Airowrestrictedatintakeordischarge.

• Broken igniter.

• Low gas supply pressure.

• Noameatburners.

• Faulty wiring or connection.

• Failed water temperature sensor.

• No Service Required. This is normal when the control is in a Maintain Temp mode.

• Check breakers and power source, recheck wiring, set time clock and current time.

• Cleanlterorclearblockage,checkpositionofvalvein plumbing system.

• Adjust or replace pressure switch.

• Adjust variable speed pump.

• Refertoqualiedservicepersonnel.

• Identify and correct loose connections

• Replace switches.

• Refertoqualiedservicepersonnel.

• Identify and correct loose connections.

• Replace vent temperature limit switch.

• Refertoqualiedservicepersonnel.

• Check tubing and replace if necessary.

• Correct fault or replace fan.

• Replace igniter.

• Verify proper wiring for 120 VAC or 240 VAC.

• Check for proper clearances around heater and for adequate room ventilation if enclosed. Inspect for

blockageorrestrictionatdischargeofue.

• Cleanlter.

• Check the circuit.

• Check ignition control LED codes (see Section 9.3, Ignition Control LED Service Codes).

• Identify and repair incorrect supply pipe size or pipe line blockage.

• Identify and correct loose wiring connections, or problems with igniter, gas valve, or ignition control.

• Refertoqualiedservicepersonnel.

• Inspect water temperature sensor wiring.

• Ensure sensor is connected correctly into the PCB.

• Replace water temperature sensor.

• Refertoqualiedservicepersonnel.

9.3 Ignition Control LED Service Codes

In addition to service diagnostic messages, the ignition controller has an LED light that ashes to indicate various

ignition control faults. The table below lists the LED codes and the corresponding fault description. To diagnose possible cause and remedy, refer to Section 9.2, Service Diagnostic Messages.

LED Code Fault Description

The LED light is on continuously.

LED single flash. Air flow fault.

LED double flash. Flame exists when there is

LED triple flash. Ignition lockout (heater has

Ignition Control Fault. Refer to qualified service personnel.

NO call for heat. Refer to qualified service personnel.

cycled three (3) times and has locked out after the third try).

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Section 10.

Professional Service and Maintenance

WARNING

SERVICING SAFETY

Service procedures can be hazardous because they involve fuel gas, electricity, moving parts and procedures which require testing or temporary bypass of safety controls. For this reason, the heater must

beservicedonlybyaqualiedprofessionalservice

technician.

IMPROPER SERVICE HAZARD

The heater incorporates unique design features. Incorrect service of this heater can result in personal injury or damage to property. To avoid such hazards, theheatermustbeservicedonlybyaqualiedprofessional service technician.

6. Connect a hose between the third part of the tee to the negative side of the manometer.

7. Start the heater and record the gas offset pressure

with the heater running and the sealing cap rmly

in place.

8. If the offset is incorrect, adjust the gas valve until the correct pressure is obtained, see Table 5.

9. Remove the tees and replace the hoses to the vent port at the gas valve and the other hose to the gas manifold port at the gas valve.

IMPORTANT MAINTENANCE NOTE

We recommend that before each pool session, the

Thermal Regulator Valve (TRV) be inspected for

proper operation and replaced if there are signs of

scaling or corrosion.

The TRV ensures the heater operates at it’s optimal

efciencyandifproperlymaintainedwillextendthelife

of the heater.

Section 11. Spare Parts

Zodiac Pool Systems, Inc. strongly recommends that you

call a qualied service technician to perform all service and repairs on the heater. To locate a licensed or qualied

technician or independent service company in your area, contact Zodiac Technical Support at: 1-800-822-7933 (USA) 1-888-647-4004 (Canada), or www.zodiacpoolsystems.com -Dealer Locator tab

Before servicing the heater:

• Conrm that the heater control is set to either

POOL or SPA

• Conrm the temperature set point for either Pool or Spa is set high enough to make the heater operate given the current water temperature.

10.1 Gas Pressure Offset Test

1. Connect a tee to the hose from the fan inlet to the

gas valve vent port.

2. Connect a shorter hose to the opposite side of the

tee to the gas valve vent port.

3. Connect the third part of the tee with a hose to the

positive side of the manometer.

4. Connect a second tee to the gas manifold pressure

port.

5. Connect a short hose to the opposite side of the tee

to the gas manifold pressure port.

11.1 Ordering Information

To order replacement parts for the JXi pool and spa heater, contact Zodiac Techical Support at: 1-800-822-7933 (USA) 1-888-647-4004 (Canada), or www.zodiacpoolsystems.com

NOTE To identify the correct part, you will need to know the

model number, serial number and type of gas when applicable. This information can be found on the rating plate sticker, which is located inside the heater on the outside of the combustion chamber.

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

11.2 JXi Major Components

Cabinet

See Section 11.3

ENGLISH

Page 37

Water System

See Section 11.5

Heat System

See Section 11.4

Electrical System

See Section 11.6

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11.3 Cabinet Assembly Spare Parts List and Exploded Parts Diagram

11.3.1 Cabinet Assembly Spare Parts List

Key No* Description model 200 model 260 model 330 model 400

1 Heater Jacket Top Kit (no User

Interface)

2 Corner Post Kit, Left/Right (set of 2) R0592500 R0592500 R0592500 R0592500

3 Heater Base Kit R0592600 R0592600 R0592600 R0592600

4 Front or Back Panel Kit R0592700 R0592700 R0592700 R0592700

5 Side Panel Kit (set of 2) Kit R0592900 R0592900 R0592900 R0592900

6 Vent Terminal Housing Kit R0593100 R0593100 R0593100 R0593100

7 Jacket Hardware Kit

(speed nuts, screws, jacket clips)

8 Anchor Brackets Kit (set of 4) R0593400 R0593400 R0593400 R0593400

* Key No refers to Section 11.3.2 Cabinet Assembly Exploded Parts Diagram

R0592400 R0592400 R0592400 R0592400

R0593300 R0593300 R0593300 R0593300

11.3.2 Cabinet Assembly Exploded Parts Diagram

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11.4 Heat System Spare Parts List and Exploded Parts Diagrams

11.4.1 Combustion Chamber Assembly Spare Parts List

Key No* Description model 200 model 260 model 330 model 400

1 Exhaust Elbow Assembly Kit R0590200 R0590200 R0590200 R0590200

2 Band Clamp Kit R0590400 R0590400 R0590400 R0590400

3 Refractory Kit, Internal R0590500 R0590500 R0590500 R0590500

4 Combustion Chamber Kit R0590600 R0590600 R0590600 R0590600

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5 Combustion Chamber Shelf

(set of 3: Models 200, 260, 330)

6 Combustion Chamber Lid Kit R0590800 R0590800 R0590800 R0590800

7 Gasket Kit R0590900 R0590900 R0590900 R0590900

8 Sight Glass Kit R0305400 R0305400 R0305400 R0305400

9 Ignitor Kit R0457502 R0457502 R0457502 R0457502

10 Insulation Kit, External R0591000 R0591000 R0591000 R0591000

11 Isolator Kit (Thermal) R0593200 R0593200 R0593200 R0593200

12 Heat Exchange Assembly R0589402 R0589403 R0589404 R0589405

R0590700 R0590700 R0590700 R0590700

* Key No refers to Section 11.4.2 Combustion Chamber Assembly Exploded Parts Diagram

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11.4.2 Combustion Chamber Assembly Exploded Parts Diagram

200

260

330

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11.4.3 Burner Assembly Spare Parts List

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Key

No*

1 Blower Assembly Kit

2 Air Intake Grate Kit

3 BlowerIntakeOriceKit

4 FuelOriceKit

5 Gas Valve

6 Burner Kit

7 Capacitor Kit

* Key No refers to Section 11.4.4 Burner Assembly Exploded Parts Diagram

Description model 200 model 260 model 330 model 400

**N **LP N LP N LP N LP

R0591100 R0591100 R0591100 R0591100 R0591100 R0591100 R0591100 R0591100

R0591200 R0591200 R0591200 R0591200 R0591200 R0591200 R0591200 R0591200

R0591302 R0591312 R0591303 R0591313 R0591304 R0591314 R0591305 R0591315

R0591601 R0591605 R0591602 R0591606 R0591603 R0591607 R0591604 R0591608

R0591400 R0591400 R0591400 R0591400 R0591400 R0591400 R0591400 R0591400

R0591702 R0591702 R0591703 R0591703 R0591704 R0591704 R0591705 R0591705

R0614500 R0614500 R0614500 R0614500 R0614500 R0614500 R0614500 R0614500

** N - Natural Gas; LP - Liquid Propane

11.4.4 Burner Assembly Exploded Parts Diagram

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11.5 Water System Spare Parts List and Exploded Parts Diagrams

11.5.1 Manifold Assembly Spare Parts List

Key No* Description model 200 model 260 model 330 model 400

1 Access Door Kit

(with O-Ring Seal and Screws)

2 Thermal Regulator Valve Kit R0589700 R0589700 R0589700 R0589700

3 Bypass Kit R0589800 R0589800 R0589800 R0589800

4 Drain Plug Kit R0446600 R0446600 R0446600 R0446600

5 Gasket and Seals Kit R0589500 R0589500 R0589500 R0589500

6 Manifold Backplate Kit R0590002 R0590003 R0590004 R0590005

7 Manifold, 3 Port

(no backplate included; must order separately)

8 Water Pressure Switch Kit R0457001 R0457001 R0457001 R0457001

R0589600 R0589600 R0589600 R0589600

R0590100 R0590100 R0590100 R0590100

* Key No refers to Section 11.5.4 Manifold Assembly Exploded Parts Diagram.

11.5.2 Manifold Assembly Exploded Parts Diagram

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11.6 Electrical System Spare Parts List and Exploded Parts Diagrams

11.6.1 Electrical System Spare Parts List

Key No* Description model 200 model 260 model 300 model 400

1 Ignition Control Kit R0456900 R0456900 R0456900 R0456900

2 Transformer Kit R0456300 R0456300 R0456300 R0456300

3 User Interface Kit R0591900 R0591900 R0591900 R0591900

4 User Interface Lid Kit R0592000 R0592000 R0592000 R0592000

5 Wiring Harness Kit R0592100 R0592100 R0592100 R0592100

6 Air Pressure Switch Kit R0456400 R0456400 R0456400 R0456400

7 Vent Limit Switch Kit R0524300 R0524300 R0524300 R0524300

8 Water Pressure Switch Kit R0013200 R0013200 R0013200 R0013200

9 Universal Controller PCB Kit R0458100 R0458100 R0458100 R0458100

10 Power Distribution PCB Kit R0458200 R0458200 R0458200 R0458200

11 Temperature Sensor Kit R0456500 R0456500 R0456500 R0456500

12 High Limit Temperature Sensors Kit R0592300 R0592300 R0592300 R0592300

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13 Igniter Kit R0457502 R0457502 R0457502 R0457502

* Key No refers to Section 11.6.2 Electrical System Exploded Parts Diagram

11.6.2 Electrical System Exploded Parts Diagram

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Section 12. Water Chemistry

Proper Water Balance is the key to the enjoyment of your pool or spa experience and to the long life of your heater.

The pH of your pool or spa’s water is one of the factors that has the most impact on indicating how properly balanced the water is. The other factors are: temperature, total alkalinity, calcium hardness and total dissolved solids. Cold water is typically more acidic (corrosive), while hot water that is not properly balanced could lead to a scale forming (basic) condition. While the heater is in operation, if the PH is allowed to rise above 7.8 and the calcium hardness and total alkalinity are not properly maintained; calcium in the water could lose solubility, coating the copper tubes inside the heat exchanger.

This will restrict the ow of water resulting in reduced efciency and possible damage to the heater.

If the pH is allowed to drop below 7.2, and the alkalinity is not properly maintained, the water will become more acidic. Acidic water has a tendency to dissolve metal components in the pool plumbing with the copper heat exchanger in the heater being a prime target.

PH, Total Alkalinity (TA), temperature, Calcium Hardness and Total Dissolved Solids (TDS) play a role in whether the water is either corrosive or scale forming. These factors are combined in the Langelier Saturation Index, which is a method for determining whether or not water is properly balanced. See Table 7 below.

Table 7. Water Saturation Index

NOTE Acceptable “saturation Index” is between +0.5 and

-0.5. When dealing with a cosmetic surface the index should be maintained between +0.3 and -0.3. A positive value is more acceptable than a negative value.

The practice of putting tablet-based sanitizers in the skimmer basket can produce heavily chlorinated water with very low pH in contact with metal parts of the heater that can cause serious damage. Practices like this should

be discontinued and the use of oating sanitizer dispensers and check valves as backow preventers with inline

erosion-style feeders should be encouraged.

If acidic conditions are present, there could be signs of metal in the pool water that could cause staining on the

oor of your pool. This might manifest itself in the form of brown stains on the nish of your pool bottom or pool

water discoloration. Your local pool dealer can test for metals in your water or can provide you with a test kit.

Every effort should be made to maintain the water balance of your pool or spa in the proper range. Ignoring this very important component of your pool’s water chemistry can make the water less enjoyable to bathe in and result in permanent damage to your heater and/or complete failure of individual components.

Zodiac Pool Systems does not warrant heat exchangers damaged by corrosive water issues or from the build-up of calcium in the heater’s heat exchanger. Any questions regarding proper water balance can be directed to our product support line at Zodiac or to your local pool dealer.

Saturation Index = pH + AF + CF + TF -12.1

A-Factor=(AF), C-Factor=(CF), T-Factor=(TF)

Total Alkalinity Calcium Hardness Temperature

A-Factor C-Factor T-Factor

PPM

5 = 0.7 5 = 0.9 32 = 0.0

25 = 1.4 25 = 1.0 37 = 0.1

50 = 1.7 50 = 1.3 46 = 0.2

75 = 1.9 75 = 1.5 53 = 0.3

100 = 2.0 100 = 1.6 60 = 0.4

150 = 2.2 150 = 1.8 66 = 0.5

200 = 2.3 200 = 1.9 76 = 0.6

300 = 2.5 300 = 2.1 84 = 0.7

400 = 2.6 400 = 2.2 94 = 0.8

800 = 2.9 800 = 2.5 105 = 0.9

1000 = 3.0 1000 = 2.6 128 = 1.0

A saturation index of 0 is perfectly balanced

A negative saturation index has corrosive tendencies

A positive saturation index has scaling tendencies

A saturation index of +0.3 or -0.3 should be used for visible, cosmetic pool surfaces.

Factor Value

PPM

Factor Value

°F

Factor Value

NOTE: The Thermal Regulator Valve (TRV) is an indicator of

how well the water chemistry is being maintained. The TRV Should be inspected before each pool season to ensure it is clean and operating properly. If you see signs of calcium buildup or corrosion the TRV should be replaced and your water balanced.

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Pro Series, JXi™ Gas-Fired Pool & Spa Heater | Installation & Operation Manual

NOTES

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NOTES

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NOTES

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Zodiac Pool Systems, Inc.

2620 Commerce Way, Vista, CA 92081

1.800.822.7933 | www.ZodiacPoolSystems.com

ZODIAC® is a registered trademark of Zodiac International, S.A.S.U., used under license. All trademarks referenced herein are the property of their respective owners.

Jandy 200, 260, 330, 400, Pro JXi 200 Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual