Jandy Zodiac LRZ Electronic Mode d'emploi

Jandy
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

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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
LP
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"
H
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
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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.
3)

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andlocalcoderequirementsbefore
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.
46
5
10
1
8
732
9


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

Jandy
Marque
Jandy
Modèle
Zodiac LRZ Electronic
Catégorie
Accessoires de piscine hors terre
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Mode d'emploi
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