Jandy Legacy LRZ Electronic Installation And Operation Manual
Installation and Operating Data
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by authorized
personnel, qualiÞ ed in pool/spa heater installation. Improper installation and/or
operation can create carbon monoxide gas and ß ue 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.
Installation and
Operation Manual
Legacy
™
Pool and Spa Heater
Model LRZ Electronic
Natural Gas and LP
NOTE: LP Gas for
Outdoor Use Only
This product is manufactured under the following
listed United States patent no.: 5,163,508.
WARNING
If these instructions are not followed exactly, a Þ re or explosion may result,
causing property damage, personal injury, or death.
Do not store or use gasoline or other ß ammable 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 Þ re department.
Installation and service must be performed by a qualiÞ ed installer, service
agency or the gas supplier.
H0299500C
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Table of Contents
Page 3
Section 1. General Information .................... 5
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 SpeciÞ cations ..........................................7
1.7.1 General SpeciÞ cations ...............7
1.7.2 Dimensions ................................8
Section 2. Installation Instructions .............. 9
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
Section 3. Venting.......................................... 12
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
Section 4. Gas Connections ......................... 14
4.1 Gas Supply and Piping ............................14
4.2 Manifold Pressure ...................................16
4.3 Special Precautions for LP Gas ..............16
Section 5. Water Connections ...................... 16
5.1 Water Piping ............................................16
5.2 Check Valve Installation ..........................16
5.3 Automatic Flow Control Valve .................16
5.4 Reversible Water Connections ................17
5.5 Connections at Heater .............................19
5.6 Pressure Relief Valve ..............................19
5.7 Auxiliary Components, Chlorinators,
Ozone Generators, and Sanitizing
Chemicals ................................................21
Section 6. Electrical....................................... 21
6.1 General Information .................................21
6.2 Main Power .............................................21
6.3 Bonding ...................................................23
6.4 Optional Remote Controls .......................23
6.4.1 Connection to a Remote
Pool-Off-Spa Selector
(3-Wire Connection) ...................23
6.4.1.1 Install the Remote Pool-Off-
Spa Selector ........................23
6.4.1.2 ConÞ gure the Control
Panel ...................................24
6.4.2 Connection to an AquaLink
®
RS
Control System or Remote
TSTAT (2-Wire Connection) .......24
6.4.2.1 Install the Remote TSTAT ....24
6.4.2.2 ConÞ gure the Control Panel 24
6.4.3 Connection to a Secondary User
Interface .....................................24
Page 4
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Table of Contents (Continued)
Section 7. Operating Instructions ................ 25
7.1 Normal Operation ....................................25
7.2 Start-Up ...................................................25
7.3 Operating the Controller ..........................26
7.3.1 Off Mode ....................................26
7.3.2 Pool Mode - (Normal Heat) ........26
7.3.3 Spa Mode - (Normal Heat) .........26
7.4 User Setup Options .................................27
7.4.1 Language Setup .........................27
7.4.2 Temperature Scale Setup ..........27
7.4.3 Spa Timer Setup ........................27
7.4.4 Display Light Setup ....................27
7.5 Set Point Lockout ....................................27
7.6 Lighting and Shutdown Procedures ........28
7.6.1 Lighting the Heater .....................28
7.6.2 Shutdown ...................................28
7.7 Adjusting the Water Pressure Switch ......28
7.8 Temperature Rise ....................................30
Section 8. Maintenance ................................. 31
8.1 Water Chemistry ......................................31
8.2 Seasonal Care .........................................32
8.2.1 Spring and Fall Operation ..........32
8.2.2 Winterizing .................................32
8.2.3 Spring Start-up ...........................32
8.3 Inspection and Service ............................32
8.3.1 Owner Inspection .......................33
8.3.2 Professional Inspection ..............33
Section 9. Troubleshooting .......................... 34
9.1 General Heater Troubleshooting .............34
9.2 Service Codes .........................................34
Section 10. Professional Maintenance and
Service ...................................... 37
10.1 General Information .................................37
10.2 Natural-Draft Combustion System ...........37
10.3 Heater Components and Their
Operation .................................................37
10.4 Electrical Troubleshooting .......................38
10.4.1 Electrical Power Supply ..............38
10.4.2 Controller ...................................38
10.4.3 Control Circuit Troubleshooting ..39
10.4.3.1 Transformer .........................39
10.4.3.2 Fuse ....................................39
10.4.3.3 Water Pressure Switch ........39
10.4.3.4 Fusible Link .........................39
10.4.3.5 Temperature Limit Switches
Circuit ..................................39
10.4.3.6 Gas Valve Voltage ...............40
10.4.3.7 Igniter/Ignition Control
Circuit ..................................40
Section 11. Replacement Parts .................... 41
11.1 Ordering Information ...............................41
11.2 Parts List .................................................44
11.3 General Exploded View ...........................45
11.4 Detailed Exploded View ..........................46
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Section 1. General Information
1.1 Introduction
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 speciÞ 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 speciÞ 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.
NOTE “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 ß ow rate is within
30-125 gpm (110-475 lpm).
1.2 Consumer Information and Safety
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 identiÞ ed by the "
comply with all of the warnings and cautions.
1.2.1 Spa/Hot Tub Safety Rules
The following “Safety Rules for Hot Tubs,” recommended 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.
" symbol. Be sure to read and
WARNING
AVERTISSEMENT
Page 5
WARNING
The U.S. Consumer Product Safety Commission
warns that elevated water temperature can be
hazardous. Consult heater operation and installation instructions for water temperature guidelines
before setting temperature.
AVERTISSEMENT
La U.S. Consumer Product Safety Commission 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 subsequently result in drowning.
3. Pregnant women take note! Soaking in water
above 102°F (38.5°C) can cause fetal damage
during the Þ 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
Legacy™ Model LRZE Pool/Spa Heater 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
1.2.2 Swimming Pool Energy Saving
Tips
Zodiac Pool Systems, Inc., offers the following
recommendations to help conserve fuel and minimize
the cost of operating your pool heater without
sacriÞ 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 4F° (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 Þ lter systems.
1.3 Warranty
The Legacy Model LRZ electronic heater is sold
with a limited factory warranty. Details are speciÞ ed
on the back cover of this manual.
Make all warranty claims to an authorized Jandy
representative or directly to the Zodiac Pool Products,
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 Þ eld
modiÞ 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.
NOTE Keep this manual in a safe place for future
reference when inspecting or servicing the heater.
1.4 Codes and Standards
The Legacy Model LRZ electronic pool and
spa heaters are design certiÞ 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. All local
codes take precedence over national codes.
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.
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
oriÞ 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.
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 7
1.5 Technical Assistance
Consult Zodiac Pool Systems, Inc. or your local
Jandy distributor with any questions or problems
involving the speciÞ 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 Service
Department at (800) 822-7933.
1.6 Materials Installer Must Provide
1.6.1 Materials for All Applications
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.
1.6.2 Materials for Special
Applications
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.
1.7 SpeciÞ cations
1.7.1 General SpeciÞ cations
1. Installation Location:
CertiÞ 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
*
4. Supply Gas Type:
CertiÞ ed for use with:
Natural Gas and LiqueÞ ed Petroleum (LP Gas
5. Inlet Gas Supply Pressure:
Minimum Maximum
Natural Gas: 5.5 "WC 10.0 "WC
LP Gas: 10.0 "WC 14.0 "WC
For diameter of gas line from meter to heater see Table 5 in
Section 4.1.
or Propane Gas).
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.
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. ModiÞ 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 conÞ guration.
Page 8
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
When requested, the heaters can be conÞ gured
and shipped for higher altitudes. For Þ eld
conversions to change altitude conÞ gurations,
manifold kits for mid altitudes and high altitudes
are available from your Jandy pool products
dealer or by contacting the Zodiac Customer
Service 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 deÞ 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.
1.7.2 Dimensions
See Figure 1 for a diagram showing the heater's
exterior dimensions and dimensions to critical
connections on the heater.
Table 1. Altitude Designations For The
Legacy Model LRZ Heater
NATURAL GAS
ALTITUDE
DESIGNATION
UNITED
STATES
CANADA
LOW ALTITUDE 0-3000 FT 0-2000 FT
(0-610 m)
MID ALTITUDE
(H)
HIGH ALTITUDE
(J)
3001-6000 FT 2001-4500 FT
(611-1370 m)
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
A
41"
39 3/8"
Heater Width
Model
125 15ǩ 38 6 15 18 46 24ǩ 61 125,000 32
175 18ǩ 40 6 15 18 46 24ǩ 61 175,000 44
250 22¾ 58 7 18 18¼ 47 25¼ 64 250,000 63
325 26Ǭ 68 8 20 18Ǭ 48 26½ 67 325,000 82
400 32Ǫ 82 9 23 21½ 55 27½ 70 399,000 101
Dim "A"
in. cm in. cm in. cm in. cm BTU/HR kcal/HR
Vent Diameter
7 5/8"
13 1/8"
2 3/4"
Venting Dimensions
U.S. Outdoor
Dimension "H"
16"
5"
U.S. Indoor or
CAN Outdoor Shelter
Dimension "H"
10 3/8"
H
8"
28 1/2"
Firing Rate
Figure 1. General ConÞ guration
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 9
Section 2. Installation Instructions
2.1 Introduction
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide
in ß ue gases which could result in severe injury,
or death. For indoor installations, as an additional measure of safety, Zodiac Pool Systems,
Inc. strongly recommends installation of suitable
Carbon Monoxide detectors in the vicinity of this
appliance and in any adjacent occupied spaces.
AVERTISSEMENT
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 intérieures, 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-Þ 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
ß ooring
3. SufÞ cient combustion and ventilation air
4. Properly sized gas meter and piping
5. Proper electrical wiring (if required)
6. Adequate water ß ow
This manual provides the information needed to
meet these requirements. Review all application and
installation procedures completely before continuing
the installation.
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.
2.3 Location Requirements
2.3.1 Introduction
CAUTION
When pool equipment is located below the pool
surface, a leak from any component can cause
large scale water loss or ß ooding. Zodiac Pool
Systems, Inc., cannot be responsible for such water
loss or ß ooding or resulting damage.
ATTENTION
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 later
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 ß ow around the heater.
All criteria given in the following sections
reß ect minimum clearances as stated in the national
standards. However, each installation must also be
evaluated, taking into account the prevailing local
conditions such as wind speed and direction, proximity
and height of walls that may block ventilation, and
proximity to public access areas.
2.2 Field Assembly
The Legacy Model LRZ electronic heater is
shipped from the factory with the top assembly in
the low-proÞ le conÞ guration for outdoor installation.
The Legacy Model LRZ electronic heater is design
certiÞ ed for indoor installation when equipped
with a draft hood, which must be installed without
modiÞ cation.
The Legacy Model LRZ electronic heater is
also certiÞ ed for installation in an outdoor shelter in
Canada when equipped with a draft hood. An outdoor
2.3.2 Clearances
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.
If the heater is to be installed in a garage, or
similar structure, all burners and burner ignition
Page 10
Table 2. Minimum Heater Clearances From Combustible Surfaces
Table 2. Dégagements Minimaux à Assurer Entre les Parois de
SIDE OF
HEATER
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*
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
L'appareil et les Constructions Combustibles
INDOOR (OUTDOOR
SHELTER) INSTALLATION
INCHES CENTIMETERS INCHES CENTIMETERS
OUTDOOR INSTALLTION
devices must have a minimum 18" (457mm) clearance
above the ß 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.
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)
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.
2.3.3 Flooring
The heater must be installed on a level surface
of noncombustible construction or on Þ re-resistant
slabs or arches. Noncombustible ß ooring is deÞ ned
as ß ooring material and surface Þ 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 ß oor without placing a noncombustible platform
between the ß oor and the heater.
The heater can be installed on a combustible
ß 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 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 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
Sheet Metal Min.
Thickness 24 Ga
Hollow Concrete Block
Platform (In Canada - Two
continuous courses of
90mm (4 in.) thick hollow
masonry units.)
Notes:
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 unrestricted 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.
Figure 2. Noncombustible Platform
carpeted alcove, the entire ß oor of the alcove must be
covered by a noncombustible panel.
2.3.4 Outdoor Installation
The Legacy Model LRZ electronic heater can be
installed in the low-proÞ le conÞ 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). In the United States the vent system shall
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 11
terminate at least 4.0 ft (1.2 m) below, 4.0 ft (1.2 m)
horizontally from, or 1.0 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).
WARNING
United States
Do not install the heater with the top of the vent
assembly within 4 feet (1.22 m) horizontally, 4 feet
(1.22 m) below or less than 1 ft (300 mm) above of
any opening into a building.
Canada
Do not install the heater with the top of the vent
assembly within 10 feet (3.05 m) of any opening
into a building.
AVERTISSEMENT
Lorsque vous installez l’appareil de chauffage, assurez-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
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 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 deß ection off nearby
structures might cause downdraft conditions. Where
downdraft conditions exist, locate the heater at least
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 a size
1/4" x 1-1/2" long stainless steel Tapcon
®
type
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.
Tapcon is a register trademark of Illinois Tool Works, Inc.
2.3.5 Indoor and Outdoor Shelter
Installations
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 modiÞ cation and in accordance with the
instructions provided by the manufacturer.
Figure 3. Outdoor Heater Installation
Figure 4. Anchor Heater To Equipment Pad
Page 12
Legacy™ Model LRZE Pool/Spa Heater 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 modiÞ 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
efÞ cient operation of the heater (See Section 3).
Section 3. Venting
3.1 Combustion Air Supply
The heater location must provide sufÞ 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) or in Canada,
CAN/CSA-B149.1, and any local codes that may be
applicable.
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 ß oor. All indoor installations
must have openings to outside air for combustion,
ventilation, and dilution of ß 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. 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 ß ow area for each 2000 BTU/h (0.6 kW). These
requirements are summarized in Table 3. Note that
the areas speciÞ 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).
Note In Canada, follow Canadian Standard, CAN/
CSA-B149.1 or local codes.
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 ß 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
qualiÞ ed engineers.
The heater must be completely isolated and
protected from any source of corrosive chemical fumes
such as those emitted by trichlorethylene, perchloroethylene, chlorine, etc.
WARNING
Do not store any chemicals, cleaners, or other
corrosive material near combustion air openings
or in the room. Avoid locating appliance vents in
the vicinity of combustion air openings. Failure
to prevent corrosive materials from mixing with
combustion air can result in reduced heater life and
unsafe heater operation.
AVERTISSEMENT
Ne pas entreposer ni utiliser d'essence ni d'autres
vapeurs ou liquides inß ammables à proximité de cet
appareil ou de tout autre appareil.
Table 3. Air Openings to Outside
Required Net Free Open Area*
for Combustion Air Openings
Model
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)
*Area indicated is for one of two openings; one at ß oor level and
one at the ceiling, so the total net free area would be double the
Þ gures indicated. For special conditions, refer to NFPA54 ANSI
Z223.1. In Canada refer to the National Standard CAN/CSA-
B149.1 which differs from this table.
Note: If using screens and/or metal louvers, compensate by adding
50% additional area to each opening. If using wood louvers each open-
ing must be at least four times the area indicated in the table above.
Direct from outside Duct from outside
2
in
(cm2) in
2
(cm2)
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Notes:
1. Use approved
roof jack.
Figure 5. Indoor Installation Venting (USA), or Outdoor Shelter (Canada)
Page 13
3)
3.2 Vent Pipe Sizing and General
Installation
3.2.1 Outdoor Installations
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.
3.2.2 Indoor and Outdoor Shelter
Installations
WARNING
Vent pipe diameter must be as required by the
National fuel Gas Code Z223.1 or the Canadian
Installation Codes for Gas Appliances CAN/CSAB149.1. Undersized pipe can result in inadequate
venting and oversize pipe can result in vent condensation. 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.
AVERTISSEMENT
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 modiÞ 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.
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 ß ow.
Avoid terminating heater vents near air
conditioning or air supply fans. The fans can pick up
exhaust ß ue products from the heater and return them
inside the building, creating a possible health hazard.
Do not locate the vent terminal where ß 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 ß ow
Page 14
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
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 ß ue products (see Figure 5).
The top of the vent cap must be at least Þ 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 speciÞ ed in the latest edition of the
National Fuel Gas Code ANSI Z223.1 or in Canada
CAN/CSA-B149.1
IMPORTANT NOTE: 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
Þ 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.
3.2.3 Inspection and Replacement of
Existing Vent System with New
Components
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.
Section 4. Gas Connections
4.1 Gas Supply and Piping
Review the following general instructions before
continuing the installation.
Important: Do not install LP gas units indoors.
WARNING
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. DO NOT ATTEMPT TO CONVERT
THIS HEATER FOR USE WITH ANY OTHER
TYPE OF FUEL.
AVERTISSEMENT
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 liquéÞ é (GPL).
VériÞ 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. NE
PAS ESSAYER DE CONVERTIR CET APPAREIL
À UN AUTRE TYPE DE GAZ.
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 certiÞ ed to operate
within the altitude range indicated on the rating
plate. If a Þ 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 Þ ll out the altitude conversion
label, included in the kit. Apply the label next to
the original rating plate.
CAUTION
Permanent damage to the gas valve will occur if the
following procedures are not followed.
ATTENTION
Vous endommagerez la soupape de gaz si vous ne
respectez pas les procédures suivantes.
Legacy™ Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 15
3. Use the Þ 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.
Table 4. Supply Gas Pipe Size Requirements*
Distance from Gas Meter
Heater
Size
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
Notes:
*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. For LP gas, reduce
pipe diameter by one size, but maintain a minimum
3/4" diameter.
2. Check supply pressure and local code requirements before
proceeding with work.
3. Pipe Þ ttings must be considered when determining gas
pipe sizing.
0-50 feet
(0-15 m)
in. mm in. mm in. mm
50-100 feet
(15-30 m)
100-200 feet
(30-60 m)
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 ß ow to the heater.
Table 5. Gas Supply Pressure Requirements*
Supply Pressure Minimum Maximum
Natural Gas 5.5 inches W.C.
(1.4 kPa)
LP Gas 10.0 inches W.C.
(2.5 kPa)
Manifold Pressure Nominal
Natural Gas 4.0 inches W.C. (1.0 kPa)
LP Gas 9.0 inches W.C. (2.2 kPa)
10.0 inches W.C.
(2.5 kPa)
14.0 inches W.C.
(3.5 kPa)
NOTE The maximum inlet gas pressure must not
exceed the speciÞ 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 ß ame.
CAUTION
Some leak test solutions (including soap and water)
may cause corrosion or stress cracking. Rinse the
piping with water after testing.
ATTENTION
Certaines solutions d’essai d’étanchéité (y compris
l’eau et le savon) peuvent causer de la corrosion
ou de la Þ ssuration. Rincez les tuyaux à l’eau après
l’essai d’étanchéité.
APPROVED
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 Þ tting, or an undersized
gas meter. Gas supply pressures to the heater are
listed in Table 5.
Figure 6. Proper Design for a Sediment Trap/Drip Leg
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