Jandy Zodiac LRZ Electronic Mode d'emploi

Marque: Jandy

Modèle: Zodiac LRZ Electronic

Catégorie: Accessoires de piscine hors terre

Taper: Mode d'emploi



















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

• 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.

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

causing property damage, personal injury, or death.

H0299500 Rev J

Page 3

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®



1.1 Introduction........................................................5

1.2 ConsumerInformationandSafety.....................5

1.2.1 Spa/HotTubSafetyRules...........................5

1.2.2 SwimmingPoolEnergySavingTips...........6

1.3 Warranty............................................................6

1.4 CodesandStandards........................................6

1.5 TechnicalAssistance..........................................7

1.6 MaterialsInstallerMustProvide.........................7

1.6.1 MaterialsforAllApplications.......................7

1.6.2 MaterialsforSpecialApplications...............7

1.7 Specifications.....................................................7

1.7.1 GeneralSpecifications................................7

1.7.2 Dimensions.................................................8



2.1 Introduction........................................................9

2.2 FieldAssembly..................................................9

2.3 LocationRequirements......................................9

2.3.1 Introduction.................................................9

2.3.2 Clearances..................................................9

2.3.3 Flooring.....................................................10

2.3.4 OutdoorInstallation...................................10

2.3.5 IndoorandOutdoorShelter

Installations...............................................11



3.1 CombustionAirSupply....................................12

3.2 VentPipeSizingandGeneralInstallation.......13

3.2.1 OutdoorInstallations.................................13

3.2.2 IndoorandOutdoorShelterInstallations..13

3.2.3 InspectionandReplacementofExisting

VentSystemwithNewComponents........14



4.1 GasSupplyandPiping....................................14

4.2 ManifoldPressure............................................16

4.3 SpecialPrecautionsforLPGas.......................16



5.1 WaterPiping....................................................16

5.2 CheckValveInstallation...................................16

5.3 AutomaticFlowControlValve..........................17

5.4 ReversibleWaterConnections........................17

5.5 ConnectionsatHeater.....................................19

5.6 PressureReliefValveandTemperature

ReliefValve......................................................20

5.7 AuxiliaryComponents,Chlorinators,Ozone

Generators,andSanitizingChemicals............21



6.1 GeneralInformation.........................................22

6.2 MainPower......................................................22

6.3 Bonding............................................................24

6.4 OptionalRemoteControls...............................24

6.4.1 ConnectiontoaRemotePool-Off-Spa

Selector(3-WireConnection)....................24

6.4.1.1 InstalltheRemotePool-Off-Spa

Selector...............................................24

6.4.1.2 ConfiguretheControlPanel...............25

6.4.2 ConnectiontoanAquaLink®RS,PDA,

RemoteTSTAT(2-WireConnection)or

Fireman'sSwitch.......................................25

6.4.2.1 InstalltheRemoteTSTAT...................25

6.4.2.2 ConfiguretheControlPanel...............25

6.4.3 ConnectiontoaSecondary

UserInterface...........................................25



7.1 NormalOperation............................................26

7.2 Start-Up...........................................................26

7.3 OperatingtheController..................................27

7.3.1 OffMode...................................................27

7.3.2 PoolMode-(NormalHeat).......................27

7.3.3 SpaMode-(NormalHeat)........................27

7.4 UserSetupOptions.........................................28

7.4.1 LanguageSetup........................................28

7.4.2 TemperatureScaleSetup.........................28

7.4.3 SpaTimerSetup.......................................28

7.4.4 DisplayLightSetup...................................28

7.5 SetPointLockout.............................................28

7.6 LightingandShutdownProcedures.................29

7.6.1 LightingtheHeater....................................29

7.6.2 Shutdown..................................................29

7.7 AdjustingtheWaterPressureSwitch...............29

7.8 TemperatureRise............................................31

 

8.1 WaterChemistry..............................................32

8.2 SeasonalCare.................................................33

8.2.1 SpringandFallOperation.........................33

8.2.2 Winterizing................................................33

8.2.3 SpringStart-up..........................................33

8.3 InspectionandService....................................33

8.3.1 OwnerInspection......................................34

8.3.2 ProfessionalInspection.............................34



Page 4 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual



9.1 GeneralHeaterTroubleshooting......................35

9.2 ServiceCodes.................................................35



 

10.1 GeneralInformation.........................................38

10.2 Natural-DraftCombustionSystem...................38

10.3 HeaterComponentsandTheirOperation........38

10.4 ElectricalTroubleshooting................................39

10.4.1 ElectricalPowerSupply............................39

10.4.2 Controller.................................................40

10.4.3 ControlCircuitTroubleshooting.................40

10.4.3.1 Transformer.......................................40

10.4.3.2 Fuse...................................................40

10.4.3.3 WaterPressureSwitch......................40

10.4.3.4 Roll-OutSwitch(FusibleLink)...........40

10.4.3.5 TemperatureLimitSwitchesCircuit....41

10.4.3.6 GasValveVoltage..............................41

10.4.3.7 Igniter/IgnitionControlCircuit............41



11.1 OrderingInformation........................................42

11.2 PartsList..........................................................44

11.3 GeneralExplodedView...................................45

11.4 DetailedExplodedView...................................46



Page 5

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®



 

This manual provides installation and operation

instructions for the Legacy Model LRZ electronic

pool and spa heaters. Read these installation and

operation instructions completely before proceeding

with the installation. Consult the factory, or local

factory representative, with any questions regarding

this equipment.

Certain sections of this manual are specic to

either United States or Canadian installations, and are

labeled as such.

The Legacy Model LRZ electronic heater gets

electrical power from an external 120VAC or 240VAC

source and provides a dual electronic thermostat

control system for pool/spa combinations or preheat

convenience.

The Legacy Model LRZ electronic heater

is specically designed for heating fresh water

swimming pools and spas, and with proper installation

and care, they will provide years of reliable service.

Do not use the heater to maintain pool or spa water

temperature below 70°F (21°C). Do not use it as a

heating boiler or general service water heater or to

heat salt water. Consult your dealer for the appropriate

Jandy products for these applications.

 “Freshwaterswimmingpoolsandspas”

includesystemsthatutilizesaltwaterchlorine

generatorunits,suchastheJandyAquaPure®

ElectronicChlorineGenerator.Pleaseensure

thatthesaltcontentofthepool/spadoes not

exceed4000ppmandwaterowrateiswithin

30-125gpm(110-475lpm).

 

The Legacy Model LRZ electronic 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 in later sections.

Throughout the manual safety warnings and cautions

are identied by the " " symbol. Be sure to read and

comply with all of the warnings and cautions.

 



Thefollowing“SafetyRulesforHotTubs,”recom-

mendedbytheU.S.ConsumerProductSafety

Commission,shouldbeobservedwhenusingthe

spa.



LesRèglementssuivantspourCuvesThermales,

telquerecommandésparlaCommissionU.S.de

SécuritédesProduitspourlesConsommateurs,

devraientêtrerespectéslorsdel’utilisationduspa.



TheU.S.ConsumerProductSafetyCommission

warnsthatelevatedwatertemperaturecanbe

hazardous.Consultheateroperationandinstalla-

tioninstructionsforwatertemperatureguidelines

beforesettingtemperature.



LaU.S.ConsumerProductSafetyCommis-

sionindiquequedestempératuresdel'eau

élevéespeuventêtredangereuses.Voirlanotice

d'installationetdefonctionnementpourleréglage

delatempérature.

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.

2. The drinking of alcoholic beverages before or

during spa or hot tub use can cause drowsiness

which could lead to unconsciousness, and subse-

quently 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 months of pregnancy (which

could result in the birth of a brain-damaged or

deformed child). If pregnant women are going

to use a spa or hot tub, they should make sure

the water temperature is below 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:

• Lack of awareness of impending hazard

Page 6 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

• 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

 



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 (25°C).

Use an accurate pool thermometer. A difference

of 4°F (2°C) , between 78°F and 82°F (26°C and

28°C), will use as much as 40% more gas.

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 tem-

perature 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 land-

scaping, 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.

 

The Legacy Model LRZ electronic heater is sold

with a limited factory warranty. Details are specied

on the back cover of this manual.

Make all warranty claims to an authorized Jandy

representative or directly to the Zodiac Pool Systems,

Inc. 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.

See Section 8.1 for maintaining proper pool water

chemistry.

Keepthismanualinasafeplaceforfuture

referencewheninspectingorservicingtheheater.

 

The Legacy Model LRZ electronic pool and

spa heaters are design certied by CSA (Canadian

Standards Association) as complying with the latest

edition of the "Standard for Gas Fired Pool Heaters",

ANSI Z21.56 in the USA and CAN-4.7 in Canada.

All Jandy heaters must be installed in accordance

with the local building and installation codes as per the

utility or authorities having jurisdiction.

In the absence of local codes, refer to the latest

edition of the following national codes for installation:

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. However,

for minimum combustion air requirements,

table 3 of this manual MUST be followed for

proper and safe operation. The Jandy LRZ

electronic heater may not operate properly when

installed with the only the minimum combustion

air openings allowed in CAN/CSA-B149.1.

The Legacy Model LRZ electronic pool and spa

heaters meets or exceeds the requirements of energy

conservation regulations such as those in California,

Hawaii, New York, Oregon and other states which

require that a pool heater have intermittent ignition.

Any changes to the heater, gas controls, gas

orices, wiring, draft hood, vent cap, or improper

installation may void the warranty. If change is

required to any of the above, consult the factory.

Page 7

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®

 

Consult Zodiac Pool Systems, Inc. or your local

Jandy distributor with any questions or problems

involving the specications, installation, and operation

of your Jandy equipment. An experienced technical

support staff is ready to assist you in assuring the

proper performance and application of Jandy products.

For technical support, call the Technical Support

Department at (800) 822-7933.

 

 

The following items are needed and are to be

supplied by the installer for all Legacy Model LRZ

electronic heater installations:

1. The correct size gas pipe to supply gas from the

meter to the heater. See Section 4.1.

2. A manually operated gas valve to be installed in

the gas line outside of the heater jacket.

3. A suitable gas union joint to connect the heater to

the gas line outside of the heater.

4. Plumbing items needed to provide a sediment

trap (drip leg) in the gas line between the manual

gas valve and the heater. See Section 4.1.

5. A 120VAC or 240VAC power supply. A junction

box is not needed at the heater; connections are

made inside of the heater jacket.

 



In addition to the items listed above, the

following items are needed for special applications:

1. A factory authorized draft hood and any vent

pipe needed for indoor installations in the USA

and outdoor shelter installations in Canada, see

Section 3.2.2. Draft hoods are available from any

Jandy distributor.

2. Primer and cement suitable for cementing CPVC

pipe to PVC pipe and an appropriate coupling

for connecting the factory supplied CPVC pipe

nipples to PVC pool plumbing.

3. A noncombustible platform for installation

on combustible surfaces, see Section 2.3.3.

Noncombustible bases are available from your

Jandy distributor.

4. A factory approved vent cap for all outdoor

installations where wind conditions may cause

downdrafting. Approved vent caps are available

from your Jandy distributor. See Section 11.2,

"Parts List", of this manual for the correct part

number.

 

 

1. Installation Location:

Certied for use:

In the USA:

Natural Gas: Indoor and Outdoor

LP: Outdoor Only

In Canada:

Natural Gas : Outdoor and Outdoor

Shelter

LP Gas: Outdoor Only

2. Minimum Clearance From Combustible Material:

See Table 2 in Section 2.3.2

3. *Gas Pipe/Heater Gas Valve Connection:

Natural Gas: 3/4" NPT

LP: 3/4" NPT

*For diameter of gas line from meter to heater see Table 5 in

Section 4.1.

4. Supply Gas Type:

Certied for use with:

Natural Gas and Liqueed Petroleum (LP Gas

or Propane Gas).

5. Inlet Gas Supply Pressure:

Minimum Maximum

Natural Gas: 5.5 "WC 10.0 "WC

LP Gas: 10.0 "WC 14.0 "WC

6. Water Pipe/Heater Connection:

*2" Unthreaded PVC or CPVC

*Other size pipes may be used. See Section 5.5 for details

7. Water Flow Rate:

Maximum: 125 gpm (475 lpm)

Minimum: 30 gpm (110 lpm)

8. Working Water Pressure:

Maximum: 75 psi

9. Exhaust Vent Connection Size:

See Figure 1 in Section 1.7.2

10. Electrical Supply:

Either 120 Volts AC or 240 Volts AC.

11. Modication of Heater for High Altitude: The

Jandy Legacy model LRZ electronic heater is

normally shipped from the factory in the low

altitude (sea level) operational conguration.

Page 8 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

Model

HeaterWidth

Dim"A"

VentingDimensions

FiringRate

VentDiameter U.S.Outdoor

Dimension"H"

U.S.Indooror

CANOutdoorShelter

Dimension"H"

in. cm in. cm in. cm in. cm BTU/HR kcal/HR

125 15⅛ 38 6 15 18 46 24⅛ 61 125,000 32

175 18⅛ 40 6 15 18 46 24⅛ 61 175,000 44

250 22¾ 58 7 18 18¼ 47 25¼ 64 250,000 63

325 26⅞ 68 8 20 18⅞ 48 26½ 67 325,000 82

400 32⅜ 82 9 23 21½ 55 27½ 70 399,000 101

When requested, the heaters can be congured

and shipped for higher altitudes. For eld

conversions to change altitude congurations,

manifold kits for mid altitudes and high altitudes

are available from your Jandy pool products

dealer or by contacting the Zodiac Technical

Support Department at (800) 822-7933. See

Section 11, “Parts List”, of this manual for the

correct kit number for the manifold assembly

needed for your altitude. Table 1 denes the

altitude designations as described by the

“Standard for Gas Fired Pool Heaters”, ANSI

Z21.56 in the United States and "Gas Fired

Appliances For Use At High Altitudes", CAN

1-2.17 in Canada.

 

See Figure 1 for a diagram showing the heater's

exterior dimensions and dimensions to critical

connections on the heater.







NATURALGAS

ALTITUDE

DESIGNATION

UNITED

STATES

CANADA

LOWALTITUDE 0-3000FT 0-2000FT

(0-610m)

MIDALTITUDE

(H)

3001-6000FT 2001-4500FT

(611-1370m)

HIGHALTITUDE

(J)

6001-10,000FT NOT

APPLICABLE

LOWALTITUDE 0-5000FT 0-4500FT

(0-1370m)

HIGHALTITUDE

(H)

5001-10,000FT NOT

APPLICABLE

A7 5/8"

39 3/8"

2 3/4"

10 3/8"

16"

5" 8"

28 1/2"

13 1/8"

41"

Page 9

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®



 



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addi-

tional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.



Uneinstallationouunentretieninadéquatpeut

causerlanauséeoul’asphyxieenraisondu

monoxydedecarboneprésentdanslesgazde

combustionetmêmeentraînerdesblessures

gravesoulamort.Pourlesinstallationsinté-

rieures,commemesuredesécuritéadditionnelle,

ZodiacPoolSystems,Inc.recommandefortement

l’installationdedétecteursdemonoxydede

carboneprèsdecetappareilainsiquedansles

espacesadjacentsoccupés.

Install the Legacy Model LRZ electronic heater,

vent caps and draft hoods 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 1.4 "Codes and

Standards".

All gas-red products require correct installation

to assure safe operation. The requirements for pool

heaters include the following:

1. Field assembly (if required)

2. Appropriate site location (clearances) and

ooring

3. Sufcient combustion and ventilation air

4. Properly sized gas meter and piping

5. Proper electrical wiring (if required)

6. Adequate water ow

This manual provides the information needed to

meet these requirements. Review all application and

installation procedures completely before continuing

the installation.

 

The Legacy Model LRZ electronic heater is

shipped from the factory with the top assembly in

the low-prole conguration for outdoor installation.

The Legacy Model LRZ electronic heater is design

certied for indoor installation when equipped

with a draft hood, which must be installed without

modication.

The Legacy Model LRZ electronic heater is

also certied for installation in an outdoor shelter in

Canada when equipped with a draft hood. An outdoor

shelter is an enclosure not normally occupied which

does not communicate directly with occupied areas.

Check the rating plate on the heater or the Parts

List (Section 11) of this manual for the correct Jandy

draft hood or vent cap part number. See instructions

supplied with the draft hood or vent cap for installation

and attachment. When the draft hood is used, locate

the heater so as to be in the same atmospheric pressure

zone as the combustion air inlet to the heater.

 

 



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.



Lorsquel’équipementd’unepiscineestsituésous

lasurfacedel’eau,unefuiteprovenantden’importe

quelélémentpeutcauseruneperted’eauimportante

ouuneinondation.ZodiacPoolSystems,Inc. n’est

pasresponsabledespertesd’eau,desinondations

oudesavariescauséesparuneinstallationouun

entretieninadéquat.

The Legacy Model LRZ electronic heater may

be installed indoors or outdoors as outlined in lat.er

sections. 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 about this.

Avoid placing the heater in locations where it can

cause damage by water or condensate leakage. If this

is not possible, provide a suitable drain pan to catch

and divert any leakage. The pan must not restrict the

air ow around the heater.

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.

 

The heater must be placed to provide clearances

on all sides for maintenance and inspection. There

must also be minimum distances maintained from

combustible surfaces, see Table 2.

At least 18" (457mm) access must be available in

front of the heater for burner removal and access to the

igniter.

Page 10 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

If the heater is to be installed in a garage, or

similar structure, all burners and burner ignition

devices must have a minimum 18" (457mm) clearance

above the oor.

This heater must be installed at least 5 feet

(1.52m) 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.

Ce chauffe-piscine doit être installé au moins 5

pieds (1.52m) de la paroi interne de la piscine à moins

d'être isolé de la piscine par une clôture, un mur ou

autre barrière permanente.

 

The heater must be installed on a level surface

of noncombustible construction or on re-resistant

slabs or arches. Noncombustible ooring is dened

as ooring material and surface nish not capable of

being ignited and burning and with no combustible

materials against the underside. Acceptable materials

are those consisting entirely of a combination of steel,

iron, brick, tile, concrete, slate, glass or plaster. Do not

install the heater directly on a combustible wood or

carpet oor without placing a noncombustible platform

between the oor and the heater.

The heater can be installed on a combustible

oor if a noncombustible base assembly, available

from Zodiac Pool Systems, Inc, is used. See the

heater rating plate or the Parts List (Section 11) of this

manual for the appropriate base part number. Heaters

must never be installed directly on carpeting.

As an alternative to the Jandy noncombustible

base plate, in the United States, the National Fuel Gas

Code (NFPA 54 / ANSI Z223.1), and in Canada, the

Natural Gas and Propane Installation Code (CAN/

CSA-B149.1), allow a heater to be placed on a

combustible surface when there is a platform under

the heater made of hollow masonry no less than four

(4) inches (102 millimeters [mm]) thick, covered with

sheet metal at least 24 gauge thick and extending

beyond the full width and depth of the heater by at

least six (6) inches (153 mm) in all directions. The

masonry must be laid with ends unsealed, and joints

matched to provide free circulation of air from side to

side through the masonry, see Figure 2. If the heater

is installed in a carpeted alcove, the entire oor of the

alcove must be covered by a noncombustible panel.

 

The Legacy Model LRZ electronic heater can be

installed in the low-prole conguration as received

from the factory, or with an optional factory approved

vent cap for high wind applications..

Locate the heater in an open, unroofed area. 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).







NOTE: Clearances listed in Table 2 are

manufacturer's tested values. These are

given as minimum values. Where local

and national codes apply, and values

are different than those listed in Table

2, use the greater value to ensure safe

operation.

* In Canada - 24 in (61cm)





1. Blocksmustprovideasolidbaseandbebracedsothey

cannotslipoutofplace.

2. Airopeningsinblocksmustbearrangedtoprovideunre-

strictedopeningthroughentirewidthorlengthofbase.

3.Sheetmetalmustbeatleast24ga.andextend6"beyond

theheaterjacketonallsides.

SIDEOF

HEATER

INDOOR(OUTDOOR

SHELTER)INSTALLATION

OUTDOORINSTALLTION

INCHES CENTIMETERS INCHES CENTIMETERS

BLANK 8 20.3 8 20.3

REAR 6 15.2 6 15.2

PIPING 14 35.6 14 35.6

TOP 44 111.8 OPENUNROOFEDAREA

FRONT 18* 45.7* 18* 45.7*

SheetMetalMin.

Thickness24Ga

HollowConcreteBlock

Platform(InCanada-Two

continuouscoursesof

90mm(4in.)thickhollow

masonryunits.)

Page 11

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®

In the United States the vent system shall

terminate at least four (4) ft (1.2 m) below, four (4)

ft (1.2 m) horizontally from, or one (1) ft (300 mm)

above any door, operable window, or gravity inlet into

any building. In Canada, the heater must be installed

so that the exhaust point of the heater is at least 10.0

feet (3.0 m) from any building opening. See Figure 3.





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.



Donotinstalltheheaterwiththetopofthevent

assemblywithin10feet(3.05m)ofanyopening

intoabuilding.

 

Lorsquevousinstallezl’appareildechauffage,as-

surez-vousquel’ouvertured’aérationsetrouveàun

minimumde10pieds(3.05m)detouteouverture

d’unbâtiment.

The top surface of the heater must be at least

three (3) feet above any forced air inlet, or intake ducts

located within 10 feet horizontally.

If the heater is installed under an overhang, there

must be a minimum clearance of ve (5) feet (1.5 m)

above the top of the heater and the structure should not

overhang the heater more than 12 inches (0.30 m). The

area under the overhang must be open on three sides.

This prevents combustion gases from being diverted

into living areas through doors, windows, or gravity

inlets.



Ne pas installer ce chauffe-piscine sous une

saillie mesurant moins de 3 pi de hauteur. La partie

sous la saillie doit être ouverte sur 3 côtés.

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 may cause damage to

controls and electronic components.

Avoid locations where wind deection off nearby

structures might cause downdraft conditions. Where

downdraft conditions exist, locate the heater at least

three (3) feet (0.91 m) from vertical surfaces (e.g.,

nearby buildings and walls).

In Florida, it is required that the heater be

securely fastened to the equipment pad. Use size

1/4" x 2-1/4" long galvanized or plated concrete

screws and washers at each of the four tabs located

at the base of the heater. Mounting the appliance in

this manner meets the applicable requirements of the

Florida Building Code.

Mounting screws are not provided with this

heater. After placing the heater on the equipment pad,

drill a hole in the concrete at each of the four tabs

on the feet of the heater. (The correct size drill bit

is usually provided with the concrete screws when

purchased). Place a screw in each of the holes and

fasten the heater to the equipment pad. See Figure 4.

Do not over-torque the screws.

 



An outdoor shelter (Canada only) is an

unoccupied enclosure which does not communicate

directly with occupied areas. All indoor installations

and outdoor shelter installations require a factory

approved draft hood. The draft hood must be installed

without modication and in accordance with the

instructions provided by the manufacturer.

1/4” X 2-1/4”

GALVANIZED OR PLATED

CONCRETE SCREWS



Page 12 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

Une remise extérieure (au Canada seulement)

est un endroit inoccupé qui ne communique pas

directement avec les endroits occupés. Toutes

les installations intérieures et remises extérieures

exigent l’addition d’une cheminée approuvée par le

manufacturier. La cheminée doit être installée sans

aucune modication et selon les exigences fournies

par le manufacturier.

These codes, standards and Zodiac Pool Systems,

Inc., require that the heater be properly vented as

outlined in this manual. Proper ventilation of exhaust

and combustion air are essential for the safe and

efcient operation of the heater. See Section 3.



 

The heater location must provide sufcient air

supply for proper combustion and ventilation of the

surrounding area as outlined in the latest edition of

ANSI standard Z223.1 (NFPA 54). The minimum

allowable combustion air opening in the Canadian

Natural Gas and Propane Installation Code (CAN/

CSA B149.1) are not sufcient for safe and proper

operation of the Legacy Model LRZ electronic heaters.

Combustion air openings must be followed per the

requirements of ANSI Z223.1 (NFPA 54) and Table 3.

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, the other 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, see Figure

5 and Table 3. Zodiac Pool Systems, Inc., does not

recommend indoor installations that do not provide

combustion air from outside the building.

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. For combustion air supply openings,

however, the requirements of Table 3 MUST

be followed for safe and proper operation. The

minimum combustion air openings allowed in CAN/

CSA B149.1 are NOT sufcient for the model LRZ

electronic heaters.

Zodiac Pool Systems, Inc., does not recommend

outdoor shelter installations that depend on internal air

for combustion. Combustion air should be ducted to

the heater from outside the structure.

Outside Air Supply: When combustion air

is supplied directly through an outside wall, each

opening should have a minimum free area of one

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 one square inch

of ow area for each 2000 BTU/h (0.6 kW). These

requirements are summarized in Table 3. Note that

the areas specied are net free areas and should be

increased when the openings are covered by screens,

louvers, grills or other protective covers. See Figure 5

and Table 3 notes.

Exceptforthecombustionairopenings

requirements,inCanada,followCanadian

Standard,CAN/CSA-B149.1orlocalcodes.

FollowtherequirementsofTable3forthe

minimumcombustionairopeningsrequired.

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 3 is not applicable in

installations where exhaust fans or blowers of any

type are used. Such installations must be designed by

qualied engineers.

The heater must be completely isolated and

protected from any source of corrosive chemical fumes

such as those emitted by trichlorethylene, perchloro-

ethylene, chlorine, etc.

 

RequiredNetFreeOpenArea*

forCombustionAirOpenings

*Areaindicatedisforoneoftwoopenings;oneatoorleveland

oneattheceiling,sothetotalnetfreeareawouldbedoublethe

guresindicated.Forspecialconditions,refertoNFPA54ANSI

Z223.1.



The

minimumallowablecombustionairopeningsintheCanadian

NationalStandardsCAN/CSAB149.1arenotadequatefor

properoperationoftheLRZelectronicheaters.

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

Model Directfromoutside Ductfromoutside

in2(cm2) in2(cm2)

125 32 (206) 64 (413)

175 44 (284) 88 (568)

250 63 (406) 126 (813)

325 82 (429) 164 (1058)

400 100 (645) 200 (1290)

Page 13

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®

 





Ventpipediametermustbeasrequiredbythe

NationalfuelGasCode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con-

densation.Ineithercasetheresultcanberelease

ofcombustionproductstotheindoors.Thiscan

causeseriousinjuryordeathbycarbonmonoxide

poisoningorasphyxiation.



Lediamètredestuyauxdeventilationdoitrépondre

auxexigencesduNational Fuel Gas Code Z223.1

ouducodecanadiendesinstallationsdesappareils

àgazCAN/CSAB149.1.Destuyauxtroppetits

risquentd’entraîneruneventilationinadéquateet

destuyauxtropgrosrisquentdeprovoquerune

condensationdanslestuyaux.Dansuncascomme

dansl’autre,desproduitsdecombustionrisquent

des’échapperdanslebâtimentetcauserdes

blessuresgravesoul’asphyxieparlemonoxydede

carbone.

All indoor installations and outdoor shelter

installations require a factory approved draft hood. The

draft hood must be installed without modication. All

vent installations must be made in accordance with all

local, state or provincial codes and with:

1. The 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.



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.

 

Nepasentreposerniutiliserd'essencenid'autres

vapeursouliquidesinammablesàproximitéde

cetappareiloudetoutautreappareil.

 



 

For outdoor installations, exhaust venting

considerations will determine the placement of the

heater, see Section 2.3.4. If the heater cannot be

placed so as to meet the requirements stated in Section

2.3.4, a vent pipe and cap may be added to the heater

to move the exhaust vent opening to a position that

complies with the requirements.

When the heater is installed in areas of high

wind or when unavoidably installed near a vertical

obstruction where downdrafting may occur, it may be

desirable to add a vent cap directly to the top of the

heater.

In all cases, vent pipes and caps must be of the

same diameter as the exhaust outlet of the heater.

Approved vent caps may be obtained through your

Jandy distributor.



1. Use approved

roofjack.



Page 14 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

2. In Canada, CAN/CSA B149.1.

Avoid long horizontal runs of the vent pipe, and

90° elbows, reductions and restrictions. Horizontal

runs should have at least a 1/4 inch rise per foot

(20mm per meter) in the direction of ow.

Avoid terminating heater vents near air

conditioning or air supply fans. The fans can pick up

exhaust ue products from the heater and return them

inside the building, creating a possible health hazard.

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.

Be sure to support all venting so that connections

will not separate and so that the weight of the vent pipe

does not rest on the heater draft hood. All connections

should be made with rustproof sheet metal screws.

Do not weld or fasten the vent pipe to the heater draft

hood. The draft hood and heater top must be easily

removable for normal heater service and inspection.

The draft hood outlet is to be connected to

an unobstructed vent pipe of the same diameter,

terminating outside the building. The vent must

terminate at least two (2) feet (0.6 m) above the

highest point of the roof or other object that is within

ten (10) feet (3.0 m) of the vent termination. The vent

pipe must have a listed vent cap which allows a full

equivalent opening for ue products, see Figure 5. The

top of the vent cap must be at least ve feet in vertical

height above the draft hood outlet.

Type “B” double wall or equivalent vent pipe is

recommended for the entire venting system. However,

single wall metal vent pipe may be used within

the structure as specied in the latest edition of the

National Fuel Gas Code ANSI Z223.1 or in Canada

CAN/CSA-B149.1

:Donotusesheetmetalscrewsat

thesnaplockjointsofTypeBgasvents.

When venting multiple appliances through one

common duct, 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. Refer to ANSI

Z223.1 or, in Canada, to CAN/CSA B149.1 for more

information on multiple venting.

 





If the Legacy Model LRZ electronic is being

installed to replace an existing pool heater, it is

recommended that a new appropriate venting system

be installed with the new heater.

However, if an existing venting system must

be used, be sure to carefully inspect the venting

system to ensure that it is in good condition and

continues to be appropriate for the Legacy Model LRZ

electronic heater. Replace any parts that are not in

good and serviceable condition with new parts before

completing the pool heater installation.



 

Review the following general instructions before

continuing the installation.

DonotinstallLPgasunitsindoors.



TheLegacyModelLRZpoolandspaheatersare

designedforusewitheithernaturalgasorLPgas.

Checktheratingplateontheinnerpaneltobesure

thattheheaterisdesignedtousethetypeofgas

beingsupplied.





 

Lesappareilsdechauffageàfaiblesémissions

LegacyModelLRZpourpiscinesetcuves

thermalessontconçuspourêtreutilisésavecdu

gaznatureloudugazdepétroleliquéé(GPL).

Vériezl’informationinscritesurlaplaquesignalé-

tiquedupanneauintérieurpourvousassurerque

l’appareilestconçupourletypedegazfourni.





1. 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.

2. Check the gas supply to be sure that it is the

same as the gas indicated on the heater’s rating

plate. Legacy Model LRZ electronic heaters, as

shipped from the factory, are certied to operate

within the altitude range indicated on the rating

plate. If a eld conversion to a different altitude

range should be necessary, manifold kits are

available for changing the altitude range of the

heater. See Table 1 in section 1.7.1 of this manual

to determine the correct altitude designation for

your heater. Refer to Section 11 “Parts List” to

order the correct part number of the manifold kit

needed. When changing the altitude range of the

heater, be sure to ll out the altitude conversion

label, included in the kit. Apply the label next to

the original rating plate.

Page 15

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®



SupplyPressure Minimum Maximum

NaturalGas 5.5inchesW.C.

(1.4kPa)

10.0inchesW.C.

(2.5kPa)

LPGas 10.0inchesW.C.

(2.5kPa)

14.0inchesW.C.

(3.5kPa)

ManifoldPressure Nominal

NaturalGas 4.0inchesW.C.(1.0kPa)

LPGas 9.0inchesW.C.(2.2kPa)

Themaximuminletgaspressuremustnot

exceedthespeciedvalue.Theminimum

valuelistedisforthepurposeofinput

adjustment.RefertoTable5.

8. 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.



Someleaktestsolutions(includingsoapandwater)

maycausecorrosionorstresscracking.Rinsethe

pipingwithwateraftertesting.



Certainessolutionsd’essaid’étanchéité(ycompris

l’eauetlesavon)peuventcauserdelacorrosion

oudelassuration.Rincezlestuyauxàl’eauaprès

l’essaid’étanchéité.



Permanentdamagetothegasvalvewilloccurifthe

followingproceduresarenotfollowed.



Vousendommagerezlasoupapedegazsivousne

respectezpaslesprocéduressuivantes.

3. Use the gures in Table 4 to size the gas inlet

piping from the gas meter to the heater. Check all

local codes for compliance before installing the

heater.



DistancefromGasMeter

Heater

Size

0-50feet

(0-15m)

50-100feet

(15-30m)

100-200feet

(30-60m)

in. mm in. mm in. mm

125 3/4 19 1 25 1 25

175 1 25 1 25 1-1/4 32

250 1 25 1-1/4 32 1-1/4 32

325 1-1/4 32 1-1/4 32 1-1/2 38

400 1-1/4 32 1-1/2 38 1-1/2 38



*1.Thesenumbers arefornaturalgas(0.65 Sp.Gr.)and

arebasedon1/2inch(3.45kPa)watercolumnpressure

drop.Checksupplypressurewithamanometer,andlocal

coderequirementsforvariations.





2. Checksupplypressureandlocalcoderequirementsbefore

proceedingwithwork.

3. Pipettingsmustbeconsideredwhendetermininggas

pipesizing.

4. Install a sediment trap (drip leg) ahead of the gas

controls, see Figure 6. Fit the trap with a threaded

cap which can be removed for cleaning.

5. Install a manual gas shutoff valve for service

and safety. Do not use a restrictive gas cock.

DO NOT USE FLEXIBLE GAS PIPING, it will

restrict the gas ow to the heater.

6. Disconnect the heater and its individual shutoff

valve from the gas supply system during pressure

testing of the system at pressures higher than 1/2

pounds per square inch (psi) (3.45 kilopascals

[kPa]). If the test pressure is equal to or less than

1/2 psi (3.45 kPa), close the manual shutoff valve

on the heater during the piping pressure test.

7. If the gas supply pressure is less than required,

check for undersized pipe between the meter and

the heater, a restrictive tting, or an undersized

gas meter. Gas supply pressures to the heater are

listed in Table 5.

 

APPROVED

Page 16 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

 

Conrm that gas supply pressure is correct. If

the gas supply pressure is less than required, check

for undersized pipe between the meter and the heater,

a restrictive tting, or an undersized gas meter. Gas

supply pressures to the heater, when it is operating, are

listed in Table 5.



ManifoldgaspressurefortheLegacyModel

LRZnaturalgasheatersshouldbesetat4"WC.

Propaneheatersshouldbesetto9"WC.

 

Lapressionducollecteurdepressionpourles

systèmesdechauffageaugaznatureldevraitêtre

de4'’WC.Pourlessytèmesdechauffageaugaz

propanedevraitêtrede9'’WC.

The manifold pressure may be checked by

connecting a manometer to the pressure port on the

outlet side of the valve. The pressure will be zero when

the heater is not running. When the heater is operating

the manifold gas pressure should be 4" WC for natural

gas heaters and 9.0" WC for LP gas heaters.

If the manifold pressure indicated above is not

correct, check the gas train for possible problems.

Check the meter, gas line, gas ttings, and gas shut

off for under sizing. Check the gas valve inlet for

excess pipe dope, if all is correct, then it may be

necessary to adjust the gas valve regulator. To adjust

the manifold gas pressure, rst remove the slotted cap

next to the inlet pressure port on the inlet side of the

gas valve. Under the slotted cap is a slotted plastic

screw which increases the manifold pressure when

turned clockwise and decreases the manifold pressure

when turned counterclockwise. After measurements,

and adjustments if necessary, have been made, make

sure to replace the 1/8" NPT gas valve plugs on the

inlet and manifold pressure ports, and the cap on the

manifold pressure adjustment screw. It is extremely

important to replace these parts before leaving the

installation. Failure to do so can result in damage to

property or injury or death. With the heater ring, the

pressure must be within the range shown in Table 5.

Also check the pressure with the heater off.

 

LP Gas is heavier than air and can therefore more

readily collect or “pool” in enclosed areas if provision

for proper ventilation is not made. Installation of

pool heaters in enclosed areas such as pits is not

recommended. Consult the National Fuel Gas Code

(NFPA 54 / ANSI 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 of Table 3 and NFPA54

/ ANSI Z223.1 MUST be followed for safe and

proper operation.



 

Figure 7 illustrates typical piping for pool

equipment in pool/spa combination pools.

For normal installations, do not install a shutoff

valve or any kind of variable restriction in the water

piping between the heater outlet and the pool/spa. In

special installations where a shut-off valve, diverter

valve or other variable restriction is required in the

plumbing between the heater outlet and the pool,

Zodiac Pool Systems, Inc. recommends the installation

of a pressure relief valve on the heater. See Section

5.6.

Arrangement of pool system components other

than as illustrated in these diagrams can affect the

operation of the heater’s water pressure switch.

Location of the heater above or below the pool

water surface can also affect operation of the switch.

In general, the pressure switch can be adjusted

to accommodate this effect if the heater water

connections are no more than six feet below the pool

water surface and no more than 15 feet above it. See

instructions for pressure switch adjustment (Section

7.7) in the heater start-up section of this manual for

more information about this.

Note that when pool equipment is located below

the pool surface a leak can result in large scale water

loss or ooding. Zodiac Pool Systems, Inc. cannot

be responsible for such water loss or ooding or the

damage caused by either occurrence.

For special installations such as water

connections below the water level of the pool, or for

other questions contact the Zodiac Pool Systems, Inc.

Technical Support Department at (800) 822-7933.

 



Acheckvalvecaninterferewiththeproper

operationofcertainSuctionVacuumRelease

System(SVRS)products.Toavoidpossibleentrap-

menthazard,seriousinjury,ordeath,makesureto

reviewtheoperation/ownersmanualofyourparticu-

larSVRSproductbeforeinstallingthecheckvalve.

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.

Page 17

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®

When an automatic chemical feeder is installed

in the plumbing, it must be installed downstream of the

heater, see Section 5.7. A check valve must be installed

between the heater and the chemical feeder to prevent

back-siphoning of chemically saturated water into the

heater where it will damage the components.

 

The inlet/outlet header of the Legacy Model LRZ

electronic heater comes equipped with an automatic

ow control valve. The automatic ow control valve

maintains the proper ow through the heater at rates

up to approximately 125 Gallons Per Minute (GPM)

(475 liters per minute [LPM]). If the lter system

ow rate is higher than approximately 125 GPM (475

LPM), install a manual bypass valve, see Figure 7,

then perform a temperature rise test, see Section 7.8

and adjust the ow using the bypass valve until the

proper temperature rise is obtained.

 

 Reversingtheheaderrequiresalonger

syphontube,orderpartnumberR0483601.

The Legacy Model LRZ electronic heater is

shipped with water connections on the right side,

but can be modied in the eld to provide left-side

water connections. This procedure involves removing

the heat exchanger headers and reinstalling them

on opposite ends of the tube assembly. Some of the

heater wiring must be disconnected and re-routed, so

this procedure must be done only by a trained service

technician. Heat exchanger reversals are generally

done before the installation of power and water to the

heater. If you need to reverse the heat exchanger on

a previously installed heater be sure that all electrical

power, the gas supply and water supply have been

turned off before starting the procedure. These

instructions have been written to include the steps

needed when reversing the water connections on an

existing installation. If you are reversing the headers

on a new installation, some steps will be ignored.

Water connection reversal is illustrated in Figures 8

and 9.

AQUAPURE

MANUAL BY-PASS DETAIL

MANUAL BY-PASS IS USED

WHEN FILTRATION RATE

EXCEEDS 125 GPM



 

 

NOTE: When reversal

is complete the water

temperature sensor

wires and the syphon

loop tube will exit the

inlet/outlet header at

the back of the heater

and the drain plugs are

facing down. Bypass

Assembly

Page 18 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

11. For an existing installation, remove the tube

gaskets and clean the header's mating surface of

any corrosion or debris. Replace the tube gaskets

with new ones. Do not use any metal tools on the

header surface. Scratches may compromise the

seal integrity.

12. Place the inlet/outlet header over the bolts

and gasketed tubes on the left side of the tube

assembly. Align the bolt and tube holes in the

header with the bolts and tubes in the header bar

and slide the assembly together. Refer to Figure 9.

 Donotreversethepositionofthebypass.

13. Thread on the 10 bolts and washers and hand

tighten.

14. Place the return header over the bolts and

gasketed tubes on the right side of the tube

assembly. Align the bolt and tube holes in the

header with the bolts and tubes in the header bar

and slide the assembly together.

15. Thread on the 10 bolts and washers and hand

tighten.

Proceed as follows:

1. For an existing installation, drain the heater by

removing the two drain plugs on the inlet/outlet

header and the drain plug on the return header.

2. Remove the heater front panel (door).

3. Remove the I/O header side cover plates, top and

bottom. See Figure 10.

4. Remove the return header side cover plates, top

and bottom. See Figure 10.

5. Disconnect the blue "HiLimit" two-pin connector

from the Power Interface board on the raceway.

Clip any wire ties attached to the harness. Feed

the "HiLimit" two-pin connector and wiring back

through the way it is routed to the header so that

the harness hangs free from the header, outside of

the cabinet.

6. Disconnect the two "WATER TEMP" tempera-

ture sensor leads from the Power Interface board

on the raceway. Clip any wire ties attached to the

harness. Pull the wires out of the cabinet so that

they hang free from the header, outside of the

cabinet.

7. Disconnect the yellow "Water Press" two-pin

connector from the Power Interface board on

the raceway. Clip any wire ties attached to

the harness. Feed the "Water Press" two-pin

connector and wiring back through the way it

is routed to the water pressure switch so that

the harness hangs free from the water pressure

switch, outside of the cabinet.



Inordertopreventpropertydamageorinjury,

ensurethatthewiringishandledandrouted

carefullysoasnottocauseanydamagetoit.Ad-

ditionally,becarefulnottocreateanykinksinthe

waterpressureswitchcoppertubingwhenhandling

theheader.



And'empêcherdesdégâtsmatérielsoudes

blessures,assurez-vousquelecâblageest

manipuléetinstallésoigneusementdemanièreà

nepasl’endommager.Deplus,vousdevezfaire

attentionànecréeraucuneimperfectiondansla

conduiteencuivredel’interrupteurdepression

d'eauenmanipulantlatête.

8. For an existing installation, remove the coupling

nuts from the header and disconnect the water

supply from the heater.

9. Remove the 10 bolts and washers from the inlet/

outlet header and remove the header from the

tube assembly.

10. Remove the 10 bolts and washers from the return

header and remove the header from the tube

assembly.

RIGHT SIDE PANEL

IN/OUT HEADER

SIDE COVER PLATES

TOP AND BOTTOM

FRONT PANEL

(DOOR)

LEFT SIDE PANEL

CONTROL PANEL

RETURN HEADER SIDE

COVER PLATES

TOP AND BOTTOM

VENT TOP

TOP PANEL

REAR PANEL

BASE



Page 19

ENGLISH

Installation and Operation Manual | Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac®

16. Use a torque wrench to tighten the bolts on each

header to 4 ft-lbs. The bolts must be tightened in

the sequence indicated in Figure 11.



Siletuyaucollecteurn’estpasserréconformément

auxdirectivesdesl'étape16,ilrisqued’avoirdes

fuitesoudes’endommagerdefaçonpermanente.



Failuretotightentheheaderasindicatedinstep16

maycausetheheadertoleakorbecomeperma-

nentlydamagedfromwarping.

17. Remove the 3/4 inch button plug located in the

left side panel below the inlet/outlet header and

replace with the 3/4 inch wire grommet from

the right side panel below the return header.

The high limit leads were routed through this

grommet prior to removal in step 5. Install the

3/4 inch plug in the opening where the 3/4 inch

wire grommet was removed.

18. Route the blue two-pin connector attached

to the high limit switches back to the Power

Interface board in the raceway. Reconnect the

blue "HiLimit" two-pin connector to the blue

"HiLimit" connector on the Power Interface

board.

19. Route the wires that attach to the temperature

sensor back to the Power Interface board in the

raceway. Reconnect the wires to the "WATER

TEMP" terminals on the Power Interface board.

20. Install the longer syphon loop tube (part number

R0483601) to the pressure switch and locate

the the pressure switch in the front area of the

cabinet.

21. Route the yellow two-pin connector that connects

to the water pressure switch back to the Power

Interface board in the raceway. Reconnect the

yellow two-pin connector to the yellow "Water

Press" connector on the Power Interface board.

22. Use plastic wire ties to refasten the temperature

sensor, high limit switch and water pressure

switch wires to each other. Bundle the wires near

the control panel and fasten them with a wire tie.



And'empêcherdesdégâtsmatérielsoudes

blessures,assurez-vousqu'aucundeslsn'est

encontactavecunbordtranchantouunesurface

chaude.



Inordertopreventpropertydamageorinjury,be

surethatnoneofthewiresareincontactwitha

sharpedgeorahotsurface.

23. Install the return header side cover plate on the

right side of the unit.

24. Install the I/O header side cover plates, top and

bottom on the left side of the unit.

25. Replace the front panel (door).

 

The Legacy Model LRZ electronic heater has

a standard two (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

short pieces of two inch plastic pipe (supplied by the

installer), any size existing pipe may be tted to the

heater.

To connect a section of 2” PVC or CPVC pipe

to the heater, rst slip a coupling nut onto the pipe.

Then prepare the end of the pipe with the proper PVC/

CPVC primer and glue. Follow the manufacturer’s

instructions provided with the primer and glue for

preparation procedures and curing times. Apply the

slip-t side of the coupling to the end of the pipe.

Allow the glue to cure completely. Set the o-ring

into the groove on the face of the coupling. Slide the

coupling nut up to the coupling and tighten it to the

threaded connection on the header. See Figure 12.

732





O-RING

TAILPIECE

UNIONNUT

PVCORCPVCPIPE

Page 20 ENGLISH Jandy® Legacy™ Model LRZE Pool/Spa Heater by Zodiac® | Installation and Operation Manual

 



A pressure relief valve (PRV) is recommended in

all installations, and is mandatory in any installation

in which the water  ow can be shut off between the

heater outlet and the pool/spa.

Some local codes may also require installation of a

temperature relief valve. Check with your local codes for

requirements in your area. The valve setting should be

in accordance with local codes. The U.S. Product Safety

Commission recommends that the water in the pool

does not exceed 104°F. All temperature and/or pressure

relief valves must be listed by a Nationally Recognized

Testing Lab (NRTL) such as ASME, CSA, UL, or ETL.

A pressure relief valve is not supplied with the

Legacy Model LRZ electronic 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.

See Section 11.2 (Parts List) of this manual for the

appropriate kit part number.

The pressure rating of the valve should be at or

below the lowest working pressure of any component

in the system. The maximum working pressure of this

heater is 75 psi. Any pressure relief valve installed

must comply with provisions of the standard described

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

Canada.

Follow these steps to install a pressure relief valve.

1. To protect the threads while drilling, screw the

brass adapter (included with the Jandy PRV kit)

into the blind threaded hole on the top of the

inlet/outlet header.

2. Using the countersink in the center of the blind

hole as a guide, drill a 1/4 inch hole through the

plastic. See Figure 13.

3. Open the hole by reaming it with a 3/8 inch drill

bit.

4. Open the hole again by reaming it with a 1/2 inch

drill bit.



Sivouscommencezàpercerletroude½"sans

alésagepréalable,lamècherisquede«mordre»

dansleplastique.Vousrisquezdevousblesserou

d’endommagerletuyaucollecteurdeplastique.



Initiallydrillinga1/2"holewithoutreamingmay

causethebitto"grab"ontheplastic.Thismay

causepersonalinjuryordamagetheplasticheader.

5. Remove the brass adapter and clean the cuttings

out of the hole.

6. Install the rubber washer at the bottom of the

hole. See Figure 14.

7. Thread the adapter into the hole and tighten so

that it seals against the rubber washer.

8. With a permanent marker, place a mark on the

adapter so that the mark faces the same direction

as the water connections on the header.

9. Remove the adapter from the hole.

10. Coat the threads of the pressure relief valve

(PRV) with an appropriate metal to metal thread

sealant.



TEMPORARILYINSTALL

BRASSADAPTERTO

PROTECTPLASTIC

THREADS

STARTWITHA1/4"BIT

THENOPENHOLEWITH

A3/8"BITTHENOPEN

HOLEWITHA1/2"BIT



RUBBERWASHER

BRASSADAPTER

PRESSURERELIEF

VALVEHAND

TIGHTENONLY

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Jandy Zodiac LRZ Electronic Mode d'emploi

Marque: Jandy

Modèle: Zodiac LRZ Electronic

Catégorie: Accessoires de piscine hors terre

Taper: Mode d'emploi

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