Jandy Legacy LRZM Installation And Operation Manual
Installation and Operation Data
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by a contractor who is licensed
and qualifi ed 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 suffi cient 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 fl 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 Millivolt
Natural Gas and LP
NOTE: LP Gas for
Outdoor Use only
WARNING
If these instructions are not followed exactly, a fi re or explosion may result,
causing property damage, personal injury, or death.
Do not store or use gasoline or other fl 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 fi re department.
Installation and service must be performed by a qualifi ed installer, service
agency or the gas supplier.
H0299600D
Legacy™ Model LRZM 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 ...............................6
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 Specifi cations ..........................................7
1.7.1 General Specifi cations ...............7
1.7.2 Dimensions ................................8
Section 2. Installation Instructions ........ 8
2.1 Introduction ..............................................8
2.2 Field Assembly .......................................8
2.3 Location Requirements ...........................8
2.3.1 Introduction ................................8
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 5. Water Connections ................ 16
5.1 Water Piping ............................................16
5.2 Check Valve Installation ..........................17
5.3 Automatic Flow Control Valve .................17
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 ................................................20
Section 6. Electrical................................. 21
6.1 Main Power .............................................21
6.2 Bonding ...................................................21
6.3 Auxiliary Time Clock Wiring .....................21
Section 7. Operating Instructions .......... 23
7.1 Normal Operation ....................................23
7.2 Start-Up ...................................................23
7.3 Lighting and Shutdown Procedures ........24
7.4 Turning the Heater On/Off and
Setting the Temperature Control .............24
7.5 Adjusting the Water Pressure Switch ......26
7.6 Temperature Rise ....................................27
Section 8. Maintenance ........................... 28
8.1 Water Chemistry ......................................28
8.2 Seasonal Care .........................................28
8.2.1 Spring and Fall Operation ..........28
8.2.2 Winterizing .................................28
8.2.3 Spring Start-up ...........................29
8.3 Inspection and Service ............................29
8.3.1 Owner Inspection .......................29
8.3.2 Professional Inspection ..............30
Section 9. Troubleshooting .................... 31
9.1 General Heater Troubleshooting .............31
Section 4. Gas Connections ................... 14
4.1 Gas Supply and Piping ............................14
4.2 Manifold Pressure ...................................15
4.3 Special Precautions for LP Gas ..............16
Page 4
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
Table of Contents (Continued)
Section 10. Professional Maintenance
and Service ........................... 33
10.1 General Information .................................33
10.2 Natural-Draft Combustion System ...........33
10.3 Heater Components and Their
Operation .................................................33
10.4 Electrical Troubleshooting .......................34
10.4.1 Gas Valve ...................................34
10.4.2 Pilot Generator ...........................36
10.4.3 Fusible Link ................................36
10.4.4 Fireman Switch and External
Interlocks ....................................36
10.4.5 Limit Switches ............................36
10.4.6 Water Pressure Switch...............37
10.4.7 Temperature Control Circuit .......37
10.4.7.1 ON/OFF Toggle Switch ........37
10.4.7.2 Variable Temperature
Control ................................37
10.4.7.3 Temperature Sensor ............38
10.4.7.4 Temperature Control Circuit
Board ................................... 38
Section 11. Replacement Parts .............. 38
11.1 Ordering Information ...............................38
11.2 Parts List .................................................39
11.3 General Exploded View ...........................41
11.4 Detailed Exploded View ..........................42
Legacy™ Model LRZM 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 millivolt pool
and spa heater. Read these installation and operation instructions completely before proceeding with
the installation. Consult Zodiac Pool Systems, Inc., or
local factory representative, with any questions regarding this equipment.
Certain sections of this manual are specifi c to
either United States or Canadian installations, and are
labeled as such.
The Legacy model LRZ millivolt heater is a self
contained standing pilot unit and requires no external
power.
The Legacy heater is specifi 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.
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 fl ow rate is within
30-125 gpm (110-475 lpm).
1.2 Consumer Information and Safety
The Legacy 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 identifi ed by
the "
of the warnings and cautions.
" symbol. Be sure to read and comply with all
1.2.1 Spa/Hot Tub Safety Rules
WARNING
The following “Safety Rules for Hot Tubs,” recommended by the U.S. Consumer Product Safety
Commission, should be observed when using the
spa.
AVERTISSEMENT
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.
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 fi 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 LRZM 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 sacrifi 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 temper-
ature control and use the TEMP-LOK 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.
1.3 Warranty
The Legacy heater is sold with a limited factory
warranty. Details are specifi ed on the back cover of
this manual.
Make all warranty claims to a Jandy dealer or
directly to the factory. Claims must include the heater
serial number and model (this information can be
found on the rating plate), installation date, and name
of the installer. Shipping costs are not included in the
warranty coverage.
The warranty does NOT cover damage caused
by improper assembly, installation, operation or fi eld
modifi 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 pool and spa heaters are design
certifi 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:
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
desired temperature level a day or so before you
plan to use the pool.
6. During the winter or when on vacation for longer
than a week, shut down the heater by following
the shutdown instructions found on the inside of
the heater.
7. Where possible, shelter the pool from prevailing winds with well-trimmed hedges or other
landscaping, cabanas, or fencing.
8. Always use a pool cover when practical. Besides
providing a valuable safety feature, a pool cover
will reduce heat loss, conserve chemicals, and
reduce the load on fi lter systems.
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.
Any changes to the heater, gas controls, gas
orifi 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.
1.5 Technical Assistance
Consult Zodiac Pool Systems, Inc. or your local
Jandy distributor with any questions or problems
involving the specifi cations, installation, and opera-
tion 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.
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
Page 7
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 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).
1.6.2 Materials for Special
Applications
In addition to the items listed above, the follow-
ing items are needed for special applications:
1. A factory authorized draft hood and vent pipe
for indoor installations in the USA and outdoor
shelter installations in Canada (see Section
3.2.2). Draft hoods are available from your 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. Vent caps are available from your
Jandy distributor.
1.7 Specifi cations
1.7.1 General Specifi cations
1. Installation Location:
Certifi ed for use:
In the USA:
Natural Gas: Indoor and Outdoor
LP: Indoor and Outdoor
In Canada:
Natural Gas : Outdoor and Outdoor
Shelter
LP: Outdoor and Outdoor
Shelter
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:
Certifi ed for use with:
Natural Gas or Liquefi ed Petroleum Gas (LP
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
*
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
10. Electrical Supply: None (the Legacy LRZ milli-
For diameter of gas line from meter to heater see Table 4 in
Section 4.1.
Gas or Propane Gas).
Other size pipes may be used. See Section 5.5 for details
Section 1.7.2, "Dimensions".
volt heater is a millivolt heater with a standing
pilot ignition).
11. Modifi cation of Heater for High Altitude:
The Legacy model LRZ millivolt heater is
normally shipped from the factory in the low
altitude (sea level) operational confi guration.
When requested, the heaters can be confi gured
and shipped for higher altitudes. For fi eld conver-
sions to change altitude confi gurations, manifold
kits for mid altitudes and high altitudes are avail-
Page 8
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
able from your Jandy dealer or by contacting the
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 defi 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.
Table 1. Altitude Designations For The Legacy Heater
NATURAL GAS
ALTITUDE
DESIGNATION
LOW ALTITUDE 0-3000 FT 0-2000 FT
MID ALTITUDE 3001-6000 FT 2001-4500 FT
HIGH ALTITUDE 6001-10,000 FT NOT
LOW ALTITUDE 0-5000 FT 0-4500 FT
HIGH ALTITUDE 5001-10,000 FT NOT
UNITED
STATES
LP
CANADA
(0-610 m)
(611-1370 M)
APPLICABLE
(0-1370 M)
APPLICABLE
1.7.2 Dimensions
See Figure 1 for a diagram showing the heater's
exterior dimensions and dimensions to critical connections on the heater.
Section 2. Installation Instructions
2.1 Introduction
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in
fl 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 heaters, vent caps and drafthoods 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-fi 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 fl oor-
ing
3. Suffi cient combustion and ventilation air
4. Properly sized gas meter and piping
5. Proper electrical wiring (if required)
6. Adequate water fl ow
This manual provides the information needed to
meet these requirements. Review all application and
installation procedures completely before continuing
the installation.
2.2 Field Assembly
The Legacy heater is shipped from the factory
with the top assembly in the low-profi le confi guration
for outdoor installation. The Legacy heater is design
certifi ed for indoor installation (U.S. only) when
equipped with a draft hood, which must be installed
without modifi cation.
The Legacy heater is also certifi ed for installa-
tion 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.
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 fl ooding. Zodiac Pool Systems,
Inc., cannot be responsible for such water loss or
fl 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.
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
Page 9
A
41"
39 3/8"
Heater Width
Model
125 15⅛ 38 6 15184624⅛ 61 125,000 32
175 18⅛ 40 6 15184624⅛ 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
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 Confi guration
The Legacy 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 fl ow around the heater.
All criteria given in the following sections
refl 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.
2.3.2 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 inches (457mm) access must be available in front of the heater for burner removal.
If the heater is to be installed in a garage, or
similar structure, all burners and burner ignition devices must have a minimum 18 inches (457mm) clearance
above the fl 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.
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 8 20
REAR 6 15 6 15
PIPING 14 35.6 14 35.6
TOP 44 112 OPEN UNROOFED AREA
FRONT 18* 45.7* 18* 45.7*
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
L'appareil et les Constructions Combustibles
INDOOR (OUTDOOR
SHELTER) INSTALLATION
INCHES CENTIMETERS INCHES CENTIMETERS
OUTDOOR INSTALLATION
2.3.3 Flooring
The heater must be installed on a level surface
of noncombustible construction or on fi re-resistant
slabs or arches. Noncombustible fl ooring is defi ned
as fl ooring material and surface fi 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 fl oor without placing a noncombustible platform
between the fl oor and the heater.
The heater can be installed on a combustible
fl 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 fl oor of the
alcove must be covered by a noncombustible panel.
2.3.4 Outdoor Installation
Legacy heaters can be installed in the low-profi le
top confi guration as received from the factory, or with
an optional high wind vent cap.
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 build-
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)
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
ing, even though the access might be through another
structure (e.g., a garage or utility room). In the United
States there must be a minimum of four (4) feet (1.22
m) horizontally or four (4) feet (1.22 m) vertically
between the heater exhaust point and any door, glass
opening, or gravity inlet to a building. In Canada, the
heater must be installed so that the exhaust point of the
heater is at least ten (10) feet (3.0 m) from any building opening (see Figure 3).
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
Page 11
WARNING
United States
Do not install the heater with the top of the vent assembly within 4 feet (1.22 m) horizontally and 4 feet
(1.22 m) vertically 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
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 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 5 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 defl 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). The addition of a vent cap may
be necessary.
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.
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
vent collar. The vent collar must be installed without
modifi cation and in accordance with the instructions
provided by the manufacturer.
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 modifi 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
Figure 3. Outdoor Heater Installation
Figure 4. Anchor Heater To Equipment Pad
Page 12
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
and combustion air are essential for the safe and
effi cient operation of the heater (See Section 3). An
approved draft hood may be purchased from your local
Jandy distributor. See Section 11 (Parts List) of this
manual for the correct part number for your model and
size heater.
Section 3. Venting
3.1 Combustion Air Supply
The heater location must provide suffi cient
air supply for proper combustion and ventilation of
the surrounding area as outlined in the latest edition
of ANSI standard Z223.1 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
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 fl oor level and
one at the ceiling, so the total net free area would be double the
fi 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
cm
2
2
in
cm
2
with two permanent air supply openings; one within
12 inches (305mm) of the ceiling, the other within
12 inches (305mm) of the fl oor. All indoor installa-
tions must have openings to outside air for combustion, ventilation, and dilution of fl 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 fl ow
area for each 2000 BTU/h (0.6 kW). These requirements are summarized in Table 3. Note that the areas
specifi ed are net free areas and should be increased by
50 percent when the openings are covered by screens,
louvers, grills or other protective covers (see Figure 5
and Table 3).
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 fl ue products to accumulate in the
Notes:
1. Use approved
roof jack.
Figure 5. Indoor Installation Venting (USA), or Outdoor Shelter (Canada)
3)
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
Page 13
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 qualifi ed engineers.
If a blower or fan is used to supply air to the
room, the installer should make sure it does not create
drafts which could cause nuisance shutdowns of the
pilot.
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 dryer 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
N’entreposer aucun produit chimique, produit nettoyant ou produit corrosif à proximité des bouches
d’air de combustion ou dans la pièce. Éviter de
placer des tuyaux de ventilation pour sécheuse à
proximité des bouches d’air de combustion. Le fait
de laisser des matières corrosives se mélanger à
l’air de combustion risque de réduire le cycle de vie
de l’appareil de chauffage et de compromettre son
fonctionnement.
3.2 Vent Pipe Sizing and General
Installation
3.2.2 Indoor and Outdoor Shelter
Installations
WARNING
Vent pipe diameter must be as required by the National fuel Gas Code ANSI Z223.1 or the Canadian
Installation Codes for Gas Appliances CAN/CSAB149.1. Undersize 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 ANSI
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 the addition of a factory approved
draft hood. The draft hood must be installed without
modifi cation.
All vent installations must be made in accordance
with all local, state or provincial codes and with:
1. Chapter covering "Venting of Equipment" of
the national Fuel Gas Code, ANSI 223.1 latest
edition , or the applicable provisions of the local
building codes.
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.
2. In Canada, CAN/CSA-B149.1.
Avoid long horizontal runs of the vent pipe, and
90° elbows, reductions and restrictions. Horizontal
runs must have at least a 1/4 inch rise per foot (20mm
per meter) in the direction of fl ow.
Avoid terminating heater vents near air conditioning or air supply fans. The fans can pick up
exhaust fl ue products from the heater and return them
inside the building, creating a possible health hazard.
Do not locate the vent terminal where fl 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 fl 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
Page 14
Legacy™ Model LRZM Pool/Spa Heater Installation and Operation Manual
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 (0.61 m) above the highest point
of the roof or other object that is within 10 feet (3.05
m) of the vent termination. The vent pipe must have a
listed vent cap which allows a full equivalent opening
for fl ue products (see Figure 5). The top of the vent
cap must be at least fi 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 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 it’s own vent
temperature limit switch. All vent limit switches must
be wired in series so as to prevent any appliance from
fi 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 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 heater. Replace any parts
that are not in good and serviceable condition with
new parts before completing the pool heater installa-
tion.
Section 4. Gas Connections
4.1 Gas Supply and Piping
Review the following general instructions before
continuing the installation.
Important:
The Legacy 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.
Do not install LP gas units indoors.
WARNING
AVERTISSEMENT
Les appareils de chauffage à faibles émissions
Legacy pour piscines et cuves thermales sont
conçus pour être utilisés avec du gaz naturel ou du
gaz de pétrole liquéfi é (GPL). Vérifi ez l’information
inscrite sur la plaque signalétique 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 heaters, as shipped from the
factory, are certifi ed to operate within the altitude
range indicated on the rating plate. If a fi 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 fi 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.
3. Use the fi 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.
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 fl ow to the heater.
Loading...