Jandy Legacy Pool Heater Installation and Operating Instructions

Jandy Legacy Pool Heater Installation and Operating Instructions
Installation and Operating Data
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by authorized
personnel, qualified in pool/spa heater installation. Improper installation and/or
operation can create carbon monoxide gas and flue gases which can cause serious
injury, property damage, or death. For indoor installations, as an additional measure
of safety, Zodiac Pool Systems, Inc. strongly recommends installation of suitable
Carbon Monoxide detectors in the vicinity of this appliance and in any adjacent
occupied spaces. Improper installation and/or operation will void the warranty.
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 fire or explosion may result,
causing property damage, personal injury, or death.
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
H0299500B
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 3
Table of Contents
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 Specifications ..........................................7
1.7.1 General Specifications ...............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-OffSpa Selector ........................23
6.4.1.2 Configure 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 Configure 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
Page 5
Section 1. General Information
1.1
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 specific 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 specifically 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 flow rate is within
30-125 gpm (110-475 lpm).
1.2
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.
Introduction
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 first 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.
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 identified by the " " symbol. Be sure to read and
comply with all of the warnings and cautions.
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.
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
1.3
•
Failure to recognize need to leave spa
•
Physical inability to leave spa
•
Fetal damage in pregnant women
•
Unconsciousness resulting in a danger of
drowning
The Legacy Model LRZ electronic heater is sold
with a limited factory warranty. Details are specified
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 field
modification. 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.
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
sacrificing 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 temperature control and use the Set Point Lockout
feature to discourage further adjustments.
4.
Set the pump time clock to start the pump no
earlier than 6:00 AM during the pool heating
season. This is the time when nightly heat loss
balances.
5.
If the pool is only going to be used on weekends,
reduce the heater temperature control setting by
8 or 10 degrees during the week. Reset it to the
78°F (25°C) level a day or so before you plan to
use the pool.
6.
During the winter or when on vacation for longer
than a week, shut down the heater by following
the shutdown instructions found on the inside of
the heater.
7.
Where possible, shelter the pool from prevailing
winds with well-trimmed hedges or other landscaping, cabanas, or fencing.
8.
Always use a pool cover when practical. Besides
providing a valuable safety feature, a pool cover
will reduce heat loss, conserve chemicals, and
reduce the load on filter systems.
Warranty
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 certified 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
orifices, wiring, draft hood, vent cap, or improper
installation may void the warranty. If change is
required to any of the above, consult the factory.
Page 7
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
1.5
Technical Assistance
Consult Zodiac Pool Systems, Inc. or your local
Jandy distributor with any questions or problems
involving the specifications, 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
4.
1.7
1.
The following items are needed and are to be
supplied by the installer for all Legacy Model LRZ
electronic heater installations:
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
1.
2.
3.
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.
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.
A noncombustible platform for installation
on combustible surfaces (see Section 2.3.3).
Noncombustible bases are available from your
Jandy distributor.
General Specifications
Installation Location:
Certified for use:
In the USA:
Natural Gas:
LP:
In Canada:
Natural Gas :
LP Gas:
Indoor and Outdoor
Outdoor Only
Outdoor and Outdoor
Shelter
Outdoor Only
2.
Minimum Clearance From Combustible Material:
See Table 2 in Section 2.3.2
3.
*Gas Pipe/Heater Gas Valve Connection:
Natural Gas:
3/4" NPT
LP:
3/4" NPT
*For diameter of gas line from meter to heater see Table 5 in
Section 4.1.
4.
Supply Gas Type:
Certified for use with:
Natural Gas and Liquefied Petroleum (LP Gas
or Propane Gas).
5.
Inlet Gas Supply Pressure:
Minimum
Natural Gas: 5.5 "WC
LP Gas:
10.0 "WC
Maximum
10.0 "WC
14.0 "WC
6.
Water Pipe/Heater Connection:
*2" Unthreaded PVC or CPVC
*Other size pipes may be used. See Section
5.5 for details
Materials for Special
Applications
In addition to the items listed above, the
following items are needed for special applications:
Specifications
1.7.1
Materials for All Applications
1.
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.
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. Modification 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 configuration.
Page 8
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
When requested, the heaters can be configured
and shipped for higher altitudes. For field
conversions to change altitude configurations,
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 defines 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
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)
3001-6000 FT
2001-4500 FT
(611-1370 m)
HIGH ALTITUDE
(J)
6001-10,000 FT
NOT
APPLICABLE
LP
Dimensions
See Figure 1 for a diagram showing the heater's
exterior dimensions and dimensions to critical
connections on the heater.
LOW ALTITUDE
0-5000 FT
0-4500 FT
(0-1370 m)
HIGH ALTITUDE
(H)
5001-10,000 FT
NOT
APPLICABLE
H
A
7 5/8"
16"
41"
10 3/8"
8"
5"
39 3/8"
28 1/2"
13 1/8"
2 3/4"
Venting Dimensions
Model
125
Heater Width
Dim "A"
Vent Diameter
in.
cm
in.
cm
in.
cm
in.
cm
BTU/HR
kcal/HR
15⅛
38
6
15
18
46
24⅛
61
125,000
32
U.S. Outdoor
Dimension "H"
U.S. Indoor or
CAN Outdoor Shelter
Dimension "H"
Firing Rate
175
18⅛
40
6
15
18
46
24⅛
61
175,000
44
250
22¾
58
7
18
18¼
47
25¼
64
250,000
63
325
26⅞
68
8
20
18⅞
48
26½
67
325,000
82
400
32⅜
82
9
23
21½
55
27½
70
399,000
101
Figure 1. General Configuration
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Section 2. Installation Instructions
2.1
Introduction
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide
in flue 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-fired 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
flooring
3. Sufficient combustion and ventilation air
4. Properly sized gas meter and piping
5. Proper electrical wiring (if required)
6. Adequate water flow
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 Model LRZ electronic heater is
shipped from the factory with the top assembly in
the low-profile configuration for outdoor installation.
The Legacy Model LRZ electronic heater is design
certified for indoor installation when equipped
with a draft hood, which must be installed without
modification.
The Legacy Model LRZ electronic heater is
also certified for installation in an outdoor shelter in
Canada when equipped with a draft hood. An outdoor
Page 9
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 flooding. Zodiac Pool
Systems, Inc., cannot be responsible for such water
loss or flooding 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 flow around the heater.
All criteria given in the following sections
reflect 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" (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
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Table 2. Minimum Heater Clearances From Combustible Surfaces
Table 2. Dégagements Minimaux à Assurer Entre les Parois de
L'appareil et les Constructions Combustibles
SIDE OF
HEATER
BLANK
INDOOR (OUTDOOR
SHELTER) INSTALLATION
OUTDOOR INSTALLTION
INCHES
CENTIMETERS
INCHES
CENTIMETERS
8
20.3
8
20.3
REAR
6
15.2
6
15.2
PIPING
14
35.6
14
35.6
TOP
44
111.8
FRONT
18*
45.7*
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.
OPEN UNROOFED AREA
18*
45.7*
* In Canada - 24 in (61cm)
devices must have a minimum 18" (457mm) clearance
above the floor.
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.
2.3.3
Sheet Metal Min.
Thickness 24 Ga
Flooring
The heater must be installed on a level surface
of noncombustible construction or on fire-resistant
slabs or arches. Noncombustible flooring is defined
as flooring material and surface finish 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 floor without placing a noncombustible platform
between the floor and the heater.
The heater can be installed on a combustible
floor 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
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 floor 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-profile configuration 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
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.
Figure 3. Outdoor Heater Installation
Page 11
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 deflection 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 modification and in accordance with the
instructions provided by the manufacturer.
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 modification 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
efficient operation of the heater (See Section 3).
Section 3. Venting
3.1
Combustion Air Supply
The heater location must provide sufficient
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 floor. All indoor installations
must have openings to outside air for combustion,
ventilation, and dilution of flue 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 flow area for each 2000 BTU/h (0.6 kW). These
requirements are summarized in Table 3. Note that
the areas specified 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 flue 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
qualified 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 inflammables 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
Direct from outside
Duct from outside
2
(cm )
in2
(cm2)
125
32
(206)
64
(413)
175
44
(284)
88
(568)
250
63
(406)
126
(813)
325
82
(429)
164
(1058)
400
100
(645)
200
(1290)
in
2
*Area indicated is for one of two openings; one at floor level and
one at the ceiling, so the total net free area would be double the
figures indicated. For special conditions, refer to NFPA54 ANSI
Z223.1. In Canada refer to the National Standard CAN/CSAB149.1 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 opening must be at least four times the area indicated in the table above.
Page 13
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Notes:
1. Use approved
roof jack.
3)
Figure 5. Indoor Installation Venting (USA), or Outdoor Shelter (Canada)
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
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 modification. 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.
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.
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 flow.
Avoid terminating heater vents near air
conditioning or air supply fans. The fans can pick up
exhaust flue products from the heater and return them
inside the building, creating a possible health hazard.
Do not locate the vent terminal where flue
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 flow
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 flue products (see Figure 5).
The top of the vent cap must be at least five 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 specified 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
firing 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 liquéfié (GPL).
Vérifiez 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 Model LRZ electronic heaters, as
shipped from the factory, are certified to operate
within the altitude range indicated on the rating
plate. If a field 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 fill 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.
Page 15
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
3.
Use the figures 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 5. Gas Supply Pressure Requirements*
Supply Pressure
Minimum
Maximum
Table 4. Supply Gas Pipe Size Requirements*
Natural Gas
5.5 inches W.C.
(1.4 kPa)
10.0 inches W.C.
(2.5 kPa)
LP Gas
10.0 inches W.C.
(2.5 kPa)
14.0 inches W.C.
(3.5 kPa)
Distance from Gas Meter
Heater
Size
0-50 feet
(0-15 m)
50-100 feet
(15-30 m)
100-200 feet
(30-60 m)
in.
mm
in.
mm
in.
mm
125
3/4
19
1
25
1
25
175
1
25
1
25
1-1/4
32
250
1
25
1-1/4
32
1-1/4
32
325
1-1/4
32
1-1/4
32
1-1/2
38
400
1-1/4
32
1-1/2
38
1-1/2
38
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 fittings must be considered when determining gas
pipe sizing.
4.
Install a sediment trap (drip leg) ahead of the
gas controls (see Figure 6). Fit the trap with a
threaded cap which can be removed for cleaning.
5.
Install a manual gas shutoff valve for service
and safety. Do not use a restrictive gas cock.
DO NOT USE FLEXIBLE GAS PIPING, it will
restrict the gas flow to the heater.
6.
Disconnect the heater and its individual shutoff
valve from the gas supply system during pressure
testing of the system at pressures higher than 1/2
pounds per square inch (psi) (3.45 kilopascals
[kPa]). If the test pressure is equal to or less than
1/2 psi (3.45 kPa), close the manual shutoff valve
on the heater during the piping pressure test.
7.
If the gas supply pressure is less than required,
check for undersized pipe between the meter and
the heater, a restrictive fitting, or an undersized
gas meter. Gas supply pressures to the heater are
listed in Table 5.
Manifold Pressure
Nominal
Natural Gas
4.0 inches W.C. (1.0 kPa)
LP Gas
9.0 inches W.C. (2.2 kPa)
NOTE The maximum inlet gas pressure must not
exceed the specified 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 flame.
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 fissuration. Rincez les tuyaux à l’eau après
l’essai d’étanchéité.
APPROVED
Figure 6. Proper Design for a Sediment Trap/Drip Leg
Page 16
4.2
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Manifold Pressure
Confirm that gas supply pressure is correct. If
the gas supply pressure is less than required, check
for undersized pipe between the meter and the heater,
a restrictive fitting, or an undersized gas meter. Gas
supply pressures to the heater, when it is operating, are
listed in Table 5.
CAUTION
Manifold gas pressure for the Legacy Model
LRZ natural gas heaters should be set at 4" WC.
Propane heaters should be set to 9" WC.
ATTENTION
La pression du collecteur de pression pour les
systèmes de chauffage au gaz naturel devrait être
de 4'’ WC. Pour les sytèmes de chauffage au gaz
propane devrait être de 9'’ WC.
The manifold pressure may be checked by
connecting a manometer to the pressure port on the
outlet side of the valve. The pressure will be zero when
the heater is not running. When the heater is operating
the manifold gas pressure should be 4" WC for natural
gas heaters and 9.0" WC for LP gas heaters.
If the manifold pressure indicated above is not
correct, check the gas train for possible problems.
Check the meter, gas line, gas fittings, and gas shut
off for under sizing. Check the gas valve inlet for
excess pipe dope, if all is correct, then it may be
necessary to adjust the gas valve regulator. To adjust
the manifold gas pressure, first remove the slotted cap
next to the inlet pressure port on the inlet side of the
gas valve. Under the slotted cap is a slotted plastic
screw which increases the manifold pressure when
turned clockwise and decreases the manifold pressure
when turned counterclockwise. After measurements,
and adjustments if necessary, have been made, make
sure to replace the 1/8" NPT gas valve plugs on the
inlet and manifold pressure ports, and the cap on the
manifold pressure adjustment screw. It is extremely
important to replace these parts before leaving the
installation. Failure to do so can result in damage to
property or injury or death. With the heater firing, the
pressure must be within the range shown in Table 5.
Also check the pressure with the heater off.
4.3
Special Precautions for LP Gas
LP Gas is heavier than air and can therefore more
readily collect or “pool” in enclosed areas if provision
for proper ventilation is not made. Installation of
pool heaters in enclosed areas such as pits is not
recommended. However, if such an installation is
required be sure to pay special attention to proper
ventilation requirements for LP gas. Locate heaters
a safe distance from LP gas cylinders and filling
equipment. Consult the National Fuel Gas Code
(NFPA 54 / ANSI Z223.1, latest edition), the Natural
Gas and Propane Installation Code in Canada (CAN/
CSA B149.1, latest edition), and any other local
codes and fire protection authorities about specific
installation restrictions in your area.
Section 5. Water Connections
5.1
Water Piping
Figure 7 illustrates typical piping for pool
equipment in pool/spa combination pools.
For normal installations, do not install a shutoff
valve or any kind of variable restriction in the water
piping between the heater outlet and the pool/spa. In
special installations where a shut-off valve, diverter
valve or other variable restriction is required in the
plumbing between the heater outlet and the pool,
Zodiac Pool Systems, Inc. recommends the installation
of a pressure relief valve on the heater (see Section
5.6).
Arrangement of pool system components other
than as illustrated in these diagrams can affect the
operation of the heater’s water pressure switch.
Location of the heater above or below the pool
water surface can also affect operation of the switch.
In general, the pressure switch can be adjusted
to accommodate this effect if the heater water
connections are no more than six feet below the pool
water surface and no more than 15 feet above it. See
instructions for pressure switch adjustment (Section
7.7) in the heater start-up section of this manual for
more information about this.
Note that when pool equipment is located below
the pool surface a leak can result in large scale water
loss or flooding. Zodiac Pool Systems, Inc. cannot
be responsible for such water loss or flooding or the
damage caused by either occurrence.
For special installations such as water
connections below the water level of the pool, or for
other questions contact the Zodiac Pool Systems, Inc.
Technical Service department at (800) 822-7933.
5.2
Check Valve Installation
The heater must be protected from backsiphoning of water, which can result in dry starts. If
there is any chance of back-siphoning, provide a check
valve between the pool and the filter pump inlet.
When an automatic chemical feeder is installed
in the plumbing, it must be installed downstream of
the heater (see Section 5.7). A check valve must be
installed between the heater and the chemical feeder to
prevent back-siphoning of chemically saturated water
into the heater where it will damage the components.
5.3
Automatic Flow Control Valve
The inlet/outlet header of the Legacy Model LRZ
electronic heater comes equipped with an automatic
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 17
AQUAPURE
Figure 7. Typical Piping Installation
flow control valve. The automatic flow control valve
maintains the proper flow through the heater at rates
up to approximately 125 Gallons Per Minute (GPM)
(475 liters per minute [LPM]). If the filter system
flow rate is higher than approximately 125 GPM (475
LPM), install a manual bypass valve (see Figure 7),
then perform a temperature rise test (see Section 7.8)
and adjust the flow using the bypass valve until the
proper temperature rise is obtained.
5.4
Remove the heater front panel (door).
3.
Remove the I/O header side cover plates, top and
bottom. See Figure 10.
Reversible Water Connections
The Legacy Model LRZ electronic heater is
shipped with water connections on the right side,
but can be modified in the field to provide left-side
water connections. This procedure involves removing
the heat exchanger headers and reinstalling them
on opposite ends of the tube assembly. Some of the
heater wiring must be disconnected and re-routed, so
this procedure must be done only by a trained service
technician. Heat exchanger reversals are generally
done before the installation of power and water to the
heater. If you need to reverse the heat exchanger on
a previously installed heater be sure that all electrical
power, the gas supply and water supply have been
turned off before starting the procedure. These
instructions have been written to include the steps
needed when reversing the water connections on an
existing installation. If you are reversing the headers
on a new installation, some steps will be ignored.
Water connection reversal is illustrated in Figures 8
and 9. Proceed as follows:
1.
2.
For an existing installation, drain the heater by
removing the two drain plugs on the inlet/outlet
header and the drain plug on the return header.
Figure 8. Water Connections as Shipped
Figure 9. Water Connections Reversed
Page 18
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
VENT TOP
LEFT SIDE PANEL
REAR PANEL
IN/OUT HEADER
SIDE COVER PLATES
TOP AND BOTTOM
CONTROL PANEL
BASE
RIGHT SIDE PANEL
Figure 10. Legacy Model LRZ Panel Identification
4.
Remove the return header side cover plates, top
and bottom. See Figure 10.
5.
Disconnect the blue "HiLimit" two-pin connector
from the Power Interface board on the raceway.
Clip any wire ties attached to the harness. Feed
the "HiLimit" two-pin connector and wiring back
through the way it is routed to the header so that
the harness hangs free from the header, outside of
the cabinet.
6.
7.
For an existing installation, remove the coupling
nuts from the header and disconnect the water
supply from the heater.
9.
Remove the ten (10) bolts and washers from the
inlet/outlet header and remove the header from
the tube assembly.
TOP PANEL
RETURN HEADER SIDE
COVER PLATES
TOP AND BOTTOM
FRONT PANEL
(DOOR)
8.
Disconnect the two "WATER TEMP" temperature sensor leads from the Power Interface board
on the raceway. Clip any wire ties attached to the
harness. Pull the wires out of the cabinet so that
they hang free from the header, outside of the
cabinet.
Disconnect the yellow "Water Press" two-pin
connector from the Power Interface board on
the raceway. Clip any wire ties attached to
the harness. Feed the "Water Press" two-pin
connector and wiring back through the way it
is routed to the water pressure switch so that
the harness hangs free from the water pressure
switch, outside of the cabinet.
CAUTION
In order to prevent property damage or injury,
ensure that the wiring is handled and routed
carefully so as not to cause any damage to it. Additionally, be careful not to create any kinks in the
water pressure switch copper tubing when handling
the header.
ATTENTION
Afin d'empêcher des dégâts matériels ou des
blessures, assurez-vous que le câblage est
manipulé et installé soigneusement de manière à
ne pas l’endommager. De plus, vous devez faire
attention à ne créer aucune imperfection dans la
conduite en cuivre de l’interrupteur de pression
d'eau en manipulant la tête.
10. Remove the ten (10) bolts and washers from the
return header and remove the header from the
tube assembly.
11. For an existing installation, remove the tube
gaskets and clean the header's mating surface of
any corrosion or debris. Replace the tube gaskets
with new ones. Do not use any metal tools on the
header surface. Scratches may compromise the
seal integrity.
12. Place the inlet/outlet header over the bolts
and gasketed tubes on the left side of the tube
assembly. Align the bolt and tube holes in the
header with the bolts and tubes in the header bar
and slide the assembly together.
13. Thread on the ten (10) bolts and washers and
hand tighten.
14. Place the return header over the bolts and
gasketed tubes on the right side of the tube
assembly. Align the bolt and tube holes in the
header with the bolts and tubes in the header bar
and slide the assembly together.
15. Thread on the ten (10) bolts and washers and
hand tighten.
16. Use a torque wrench to tighten the bolts on each
header to 4 ft-lbs. The bolts must be tightened in
the sequence indicated in Figure 11.
CAUTION
Failure to tighten the header as indicated in step 16
may cause the header to leak or become permanently damaged from warping.
ATTENTION
Si le tuyau collecteur n’est pas serré conformément
aux directives des l'étape 16, il risque d’avoir des
fuites ou de s’endommager de façon permanente.
17. Remove the 3/4 inch button plug located in the
left side panel below the inlet/outlet header and
replace with the 3/4 inch wire grommet from
the right side panel below the return header.
The high limit leads were routed through this
grommet prior to removal in step 5. Install the
3/4 inch plug in the opening where the 3/4 inch
wire grommet was removed.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
5.5
7
8
3
4
2
1
6
5
10
9
Figure 11 Header Bolt Tightening Sequence
18. Route the blue two-pin connector attached
to the high limit switches back to the Power
Interface board in the raceway. Reconnect the
blue "HiLimit" two-pin connector to the blue
"HiLimit" connector on the Power Interface
board.
19. Route the wires that attach to the temperature
sensor back to the Power Interface board in the
raceway. Reconnect the wires to the "WATER
TEMP" terminals on the Power Interface board.
20. Route the yellow two-pin connector that connects
to the water pressure switch back to the Power
Interface board in the raceway. Reconnect the
yellow two-pin connector to the yellow "Water
Press" connector on the Power Interface board.
21. Use plastic wire ties to refasten the temperature
sensor, high limit switch and water pressure
switch wires to each other. Bundle the wires near
the control panel and fasten them with a wire tie.
CAUTION
In order to prevent property damage or injury, be
sure that none of the wires are in contact with a
sharp edge or a hot surface.
ATTENTION
Afin d'empêcher des dégâts matériels ou des
blessures, assurez-vous qu'aucun des fils n'est
en contact avec un bord tranchant ou une surface
chaude.
Connections at Heater
The Legacy Model LRZ electronic heater has
a standard two (2) inch water header and coupling
design. With this feature, only nominal two inch PVC
or CPVC may be connected to the heater. However,
by installing the appropriate pipe adapters and two
short pieces of two inch plastic pipe (supplied by the
installer), any size existing pipe may be fitted to the
heater.
To connect a section of 2” PVC or CPVC pipe
to the heater, first slip a coupling nut onto the pipe.
Then prepare the end of the pipe with the proper PVC/
CPVC primer and glue. Follow the manufacturer’s
instructions provided with the primer and glue for
preparation procedures and curing times. Apply the
slip-fit side of the coupling to the end of the pipe.
Allow the glue to cure completely. Set the o-ring
into the groove on the face of the coupling. Slide the
coupling nut up to the coupling and tighten it to the
threaded connection on the header (see Figure 12).
5.6
Pressure Relief Valve
A pressure relief valve (PRV) is recommended in
all installations, and is mandatory in any installation
in which the water flow can be shut off between the
heater outlet and the pool/spa.
A pressure relief valve is not supplied with the
Legacy Model LRZ electronic heater. However, it is
recommended that a pressure relief valve be installed
and may even be required by local codes. Be sure to
check any applicable installation codes in your area to
determine whether a pressure relief valve is required.
See Section 11.2 (Parts List) of this manual for the
appropriate kit part number.
The pressure rating of the valve should be at or
below the lowest working pressure of any component
in the system. The maximum working pressure of this
heater is 75 psi. Any pressure relief valve installed
must comply with provisions of the standard described
in ANSI Z21.22 for the United Sates or CSA 4.4 in
Canada.
Follow these steps to install a pressure relief valve.
1.
To protect the threads while drilling, screw the
brass adapter (included with the Jandy PRV kit)
into the blind threaded hole on the top of the
inlet/outlet header.
PVC OR CPVC PIPE
O-RING
22. Install the return header side cover plate on the
right side of the unit.
23. Install the I/O header side cover plates, top and
bottom on the left side of the unit.
24. Replace the front panel (door).
Page 19
COUPLING
COUPLING
NUT
Figure 12. Piping to Heater
Page 20
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
TEMPORARILY INSTALL
BRASS ADAPTER TO
PROTECT PLASTIC
THREADS
START WITH A 1/4" BIT
THEN OPEN HOLE WITH
A 3/8" BIT THEN OPEN
HOLE WITH A 1/2" BIT
5.
Remove the brass adapter and clean the cuttings
out of the hole.
6.
Install the rubber washer at the bottom of the
hole (see Figure 14).
7.
Thread the adapter into the hole and tighten so
that it seals against the rubber washer.
8.
With a permanent marker, place a mark on the
adapter so that the mark faces the same direction
as the water connections on the header.
9.
Remove the adapter from the hole.
10. Coat the threads of the pressure relief valve
(PRV) with an appropriate metal to metal thread
sealant.
Figure 13. Drill Hole for Pressure Relief Valve
PRESSURE RELIEF
VALVE HAND
TIGHTEN ONLY
11. Install the adapter on the PRV and tighten using
two wrenches. Use the mark made earlier on the
adapter to orient the PRV to the desired direction
in relation to the water connections on the header.
12. Wrap the threads of the adapter with a suitable
teflon thread tape.
BRASS ADAPTER
RUBBER WASHER
13. Reinstall the adapter, with the PRV, into the
plastic threaded hole and tighten it until the mark
on the adapter is once again facing the same
direction as the water connections on the header.
CAUTION
Do not use any pipe compound or pipe dope on
the threads of the adapter or any part that comes in
contact with the plastic headers. These compounds
may damage the header over a period of time.
Figure 14. Pressure Relief Valve Installation
2.
3.
4.
Using the countersink in the center of the blind
hole as a guide, drill a 1/4 inch hole through the
plastic (see Figure 13).
Open the hole by reaming it with a 3/8 inch drill
bit.
Open the hole again by reaming it with a 1/2 inch
drill bit.
CAUTION
Initially drilling a 1/2" hole without reaming may
cause the bit to "grab" on the plastic. This may
cause personal injury or damage the plastic header.
ATTENTION
Si vous commencez à percer le trou de ½" sans
alésage préalable, la mèche risque de « mordre »
dans le plastique. Vous risquez de vous blesser ou
d’endommager le tuyau collecteur de plastique.
ATTENTION
N’utilisez ni pâte à joint ni pâte lubrifiante sur le
filetage du raccord intermédiaire ou sur toute pièce
qui entre en contact avec le tuyau collecteur. Ces
produits risquent d’endommager le tuyau après un
certain temps.
CAUTION
In order to prevent property damage, do not overtighten. Overtightening may crack the header.
ATTENTION
Afin d'empêcher des dégâts matériels, ne serrez
pas trop. Le serrage excessif peut provoquer des
fissures dans la tête
DO NOT TIGHTEN WITH A WRENCH.
Overtightening may crack the header. Route the
discharge piping so that discharge from the pipe does
not endanger anyone near the heater. Refer to your
local installation codes for more detailed information.
The valve setting should be at or below the maximum
working pressure of any component in the filter
system. The maximum working pressure of the Legacy
Model LRZ electronic heater is 75 psig.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
5.7
Auxiliary Components,
Chlorinators, Ozone Generators,
and Sanitizing Chemicals
The Legacy Model LRZ electronic heater is
manufactured with materials that are not compatible
with high concentrations of ozone, chlorine, bromine,
or other sanitizing chemicals. Heater damage caused
by excessive chemicals or improper ozonization is not
covered by the Zodiac Pool Systems, Inc., warranty.
Be sure to adhere to the following:
•
When ozone is injected upstream of the heater,
install an offgas mixing chamber, or an ozone
bypass system between the heater and the ozone
injector to prevent ozone and air from entering
the heater.
•
When chemical feeders are used, plumb the
feeder downstream of the heater and install an
in-line check valve between the heater and the
feeder (a minimum of 18" is required between
the heater and the check valve).
•
Wire any electrical chemical feeder so that it
cannot operate unless the filter pump is running.
If the feeder has an independent clock control,
synchronize it with the filter clock.
•
Never deposit chemicals directly in the pool
skimmer.
Section 6. Electrical
WARNING
ELECTRICAL SHOCK HAZARD. This heater
contains wiring that carries high voltage. Contact
with these wires may result in severe injury or
death.
AVERTISSEMENT
POSSIBILITÉ DE CHOCS ÉLECTRIQUES. Ce
système de chauffage contient du filage de haut
voltage. Un contact avec ces fils peut résulter en
des blessures sérieuses ou la mort.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
the right side of the heater, where a bond wire must be
attached.
6.2
Main Power
Electrical wiring must be in accordance with the
latest edition of the National Electric Code (NEC),
ANSI/National Fire Protection Association (NFPA)
70, unless local code requirements indicate otherwise.
In Canada, the Canadian Electrical Code (CEC, CSA
C22.1 No 1) must be followed.
The heater comes factory-wired intended for
use with 240 Volt, 60 Hz AC field electrical supply.
To use 120 Volt, 60 Hz AC requires rewiring of the
heater. This must be done by a certified electrician
only, as with all wiring. To wire the heater for 120V,
60 Hz AC, follow the alternate 120V wiring method
depicted in Figure 16. Additionally, the ignition
control module must be rewired. The wire from the
terminal marked IGN/240 must be removed and placed
on the terminal marked IGN/120.
To wire the Legacy Model LRZ electronic heater
to a 120V or 240V /60 Hertz (Hz) electrical source:
1.
Remove the door of the heater.
2.
Connect the wires from the power source to the
leads on the right side of the heater in the space
behind the raceway. See Figure 15.
3.
Connect a bonding wire (8ga copper) to the
bonding lug on the right side of the heater.
CONNECT WIRES
INSIDE HEATER
WIRES AS
SHIPPED
CONDUIT
ELBOW
ATTENTION
Au moment de l'entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des
erreurs de câblage peuvent entraîner un fonctionnement inadéquat et dangereux.
6.1
General Information
Wiring connections must be made exactly as
shown in the wiring diagram found on the inside of the
heater door (see Figure 16). The heater must include a
definite means of grounding. There is a bonding lug on
Page 21
Figure 15. Field Wiring Connections
Page 22
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
R
24
VAC
FUSE
TRANSFORMER
R
BK
240 VAC
HEATER
POWER
SUPPLY
FV+ FV-
IGNITION CONTROL
BK
W/BK
W/R
R
24 VAC
IGN
240
Y
R
IGN
120 L1
BK
IGN
L2 FS
BK
VAL GND
Y
BR
W
Y/BK
BR
Y
GAS VALVE
G
BK
FLAME SENSE
W
W
HOT SURFACE
IGNITER
WATER
TEMP
SENSOR
BK
BK
WATER
TEMP
JVA
RETURN
JVA
INTAKE
UNIVERSAL CONTROLLER
POWER INTERFACE
FAN/
LOUVER
COIL/AIR
TEMP
BR
Y
COMP/
IGN
GAS
VALVE
24VAC
Y/BK
R
Y
REV
VALVE
HIPRESS/ LOPRESS/
FUSELINK
HILIMIT
USER INTERFACE1
BK O BL R
BK
BK BL
O
WATER
PRESS
GR
REMOTE
SPA POOL COM
V
WATER PRESS
SWITCH
UNIVERSAL CONTROLLER
USER INTERFACE
POWER INTERFACE
130F LIMIT
SWITCH
150F LIMIT
SWITCH
ROLL-OUT
SWITCH
BK O BL R
F1
F2
TRANSFORMER
Factory Wired 24V
Factory Wired 120V/240V
Optional 120V Wiring
BK - BLACK
BL - BLUE
BR - BROWN
G - GREEN
O - ORANGE
R - RED
V - VIOLET
W - WHITE
W/BK - WHITE WITH BLACK TRACE
W/R - WHITE WITH RED TRACE
Y - YELLOW
Y/BK - YELLOW WITH BLACK TRACE
120 VAC
HEATER
POWER
SUPPLY
BK
R
BK
W/BK
W/R
R
R
Ignition Control
24 VAC
IGN
240
Y
IGN
120 L1
W
BK
G
W
W
HOT SURFACE
IGNITER
ALTERNATE 120 VAC WIRING
H03028000C
Figure 16. Legacy Model LRZ electronic Connections/Schematic Wiring Diagram
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
6.3
Bonding
6.4.1
CAUTION
To prevent premature failure of the appliance
resulting from stray voltages and voltage differentials, the heater must be bonded to other equipment
which is part of the pool plumbing system with a
solid copper wire not smaller in diameter than 8
AWG, 6 AWG in Canada.
ATTENTION
Pour éviter le bris prématuré de l'appareil dû à
des tensions vagabondes et à des différences
de tension, le chauffe-piscine doit être scellé à
l'équipement faisant partie de la plomberie de la
piscine à l'aide d'un fil de cuivre massif dont le
diamètre n'est pas inférieur à un calibre 8, et un
calibre 6 pour le Canada.
Zodiac Pool Systems, Inc. requires that the
appliance be connected to a "bonding loop" that
includes all electrical equipment in the system and on
the equipment pad. Bonding lugs must be connected
with a solid copper wire not smaller than 8 AWG (6
AWG in Canada). Failure to do so will void warranty.
Additionally, in the United States the National
Electrical Code and in Canada the Canadian Electrical
Code, require that all metallic components of a pool
structure, including reinforcing steel, metal fittings
and above ground components be bonded together
(forming a “bonding grid”) with a solid copper
conductor not smaller than a 8 AWG (6 AWG in
Canada).
The NEC and the CEC also require that the
equipment and/or appliances associated with the pool
water circulating system, including, but not limited to,
pump motors and heaters be bonded together as part
of the equipotential bonding grid. Zodiac provides a
special labeled bonding lug on the right side of the
heater to accommodate this requirement.
6.4
Optional Remote Controls
Page 23
Connection to a Remote
Pool-Off-Spa Selector (3-Wire
Connection)
6.4.1.1 Install the Remote Pool-Off-Spa
Selector
1.
Turn off the power to both the pool/spa control
system and the heater unit.
2.
Remove the front panel door from the front of the
heater to access the raceway.
3.
Run the wires from the pool/spa control system
through the opening, located on the lower right or
left hand side of the heater.
4.
Connect the wiring from the pool/spa control
system to the heater remote control terminal (see
Figure 17).
Figure 17. Remote Pool-Off-Spa Connection (3-Wire
Connection)
WARNING
RISK OF ELECTRIC SHOCK WHICH CAN
RESULT IN SERIOUS INJURY OR DEATH. Before
attempting installation or service, ensure that all
power to the device is disconnected/turned off at the
circuit breaker.
AVERTISSEMENT
RISQUE DE CHOC ÉLECTRIQUE POUVANT
CAUSER DES BLESSURES GRAVES OU LA
MORT. Avant de tenter l’installation ou d’utiliser le
service, assurez-vous que l’alimentation allant vers
le dispositif soit débranchée/éteinte au niveau du
disjoncteur du circuit. Branchez seulement à un
circuit protégé par un disjoncteur de mise à la terre.
Electrical wiring must be in accordance with the
latest edition of the National Electric Code (NEC),
ANSI/National Fire Protection Association (NFPA) 70,
unless local code requirements indicate otherwise. In
Canada use C22.1 Canadian Electrical Code Part 1.
Figure 18. AquaLink® RS or Remote TSTAT Connection
(2-Wire Connection)
Page 24
5.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Restore power to the heater and the pool/spa
control system.
6.4.1.2 Configure the Control Panel
1.
Make sure the control is in the OFF mode.
2.
To enter the Service Setup mode, press and
hold the MENU, POOL, and SPA buttons for 5
seconds.
NOTE The display will revert back to OFF after one
minute since the last key press.
3.
Press the Up or Down button to display
REMOTE. Press the MENU button.The
SELECT REMOTE OFF (default remote)
appears. Use the Up or Down button to scroll
through the Remote options. When you reach
HI-LO-COM, press the MENU button to select
the remote. Press POOL or SPA to exit the
Service Setup mode.
6.4.2
Connection to an AquaLink®
RS Control System or Remote
TSTAT (2-Wire Connection)
6.4.2.1 Install the Remote TSTAT
1.
Turn off the power to both the pool/spa control
system and the heater unit.
2.
Remove the front panel door from the front of the
heater to access the raceway.
3.
Run the wires from the pool/spa control system
through the opening, located on the lower right or
left hand side of the heater.
4.
Connect the wiring from the pool/spa control
system to the heater remote control terminal (see
Figure 18).
5.
Restore power to the heater and the pool/spa
control system.
NOTE If you install a time clock to control the filter
pump operation, it is recommended that
the time clock have its own low voltage
(Fireman’s) switch to turn off the heater before
turning off the pump. The switch should shut
off the heater about 15 minutes before the
filter pump shuts off. This will allow for a more
efficient operation by removing any residual
heat contained in the heat exchanger back to
the pool.
6.4.2.2 Configure the Control Panel
1.
Make sure the control is in the OFF mode.
2.
To enter the Service Setup mode, press and
hold the MENU, POOL, and SPA buttons for 5
seconds.
NOTE The display will revert back to OFF after one
minute since the last key press.
3.
Press the Up or Down button to display
REMOTE. The SELECT REMOTE OFF
(default remote) appears. Use the Up or Down
button to scroll through the Remote options.
When you reach REMOTE TSTAT, press the
MENU button to select the remote. Press POOL
or SPA to exit the Service Setup mode.
4.
Press SPA. Adjust the setpoint to the maximum
setting of 104 °F.
6.4.3
Connection to a Secondary
User Interface
The Legacy Model LRZ electronic pool/spa
heater can also be controlled remotely by installing a
second wall mountable User Interface. Please order
Zodiac part number R0467500. This kit contains the
second User Interface, wall mounting backplate, and
necessary hardware.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Section 7. Operating Instructions
7.1
Normal Operation
The Legacy Model LRZ electronic heater is
capable of automatic operation based on a call for
heat at a preset temperature. The heater has an internal
safety system which allows operation in a variety
of conditions and prevents operation when certain
adverse conditions are encountered. The heater is
capable of diagnosing problems within the safety
control scheme, enabling faster service and less down
time in the event of a failure.
When the heater's transformer is provided with
a 120 VAC or 240 VAC supply, it in turn provides a
24 VAC signal to the safety circuit. When water is
flowing through the heater, and the temperature of
the water entering the heater is below the temperature
control setting, an operating cycle is initiated by the
automatic control. The control circuit is closed, the
igniter is energized. After a 40 second igniter heat-up,
the gas valve is opened. Gas flows through the burners,
is mixed with air in the combustion chamber, and
is ignited by the hot surface igniter. Operation will
continue until the temperature of the water entering the
heater reaches the temperature control setting.
If ignition is unsuccessful, or if the flame fails
during normal operation, the ignition control shuts off
the gas valve. To reset the Legacy heater to provide
three (3) additional attempts without waiting an hour,
turn the control off and return it to either pool or spa.
The ignition control will automatically reset itself and
restart the ignition after one hour.
7.2
Start-Up
WARNING
For your safety, when starting the heater, keep your
head and face well away from the burner area to
prevent any risk of personal injury.
AVERTISSEMENT
Pour votre sécurité personnelle lorsque vous mettez
l’appareil en marche, tenez votre tête et votre
visage loin du brûleur pour éviter tout risque de
blessure.
WARNING
Vent pipes, and heater tops get hot! These surfaces
can cause serious burns. Do not touch these
surfaces while the heater is in operation.
AVERTISSEMENT
Les tuyaux d’aération et le dessus de l’appareil
deviennent chauds! Ils peuvent causer de graves
brûlures. Ne touchez pas à ces surfaces lorsque
l’appareil est en marche.
Page 25
CAUTION
Do not use this heater if any part has been under
water. Immediately call a qualified service technician to inspect the heater and replace any part of
the control system and any gas control which has
been under water.
ATTENTION
N'utilisez pas cet appareil s'il a été plongé dans
l'eau, même partiellement. Faites inspecter
l'appareil par un technicien qualifié et remplacez
toute partie du système de contrôle et toute
commande qui ont été plongés dans l'eau.
CAUTION
Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to the
heater.
ATTENTION
En cas de surchauffe ou si l'alimentation en gaz ne
s'arrête pas, fermez manuellement le robinet d'arrêt
de l'admission de gaz.
CAUTION
Do not attempt repairs on the gas controls or
appliance. Tampering is dangerous and voids all
warranties.
ATTENTION
Ne tentez pas d’effectuer des réparations au
système de régulation du débit du gaz ou à
l’appareil. Toute modification non autorisée est
dangereuse et entraîne l’annulation de toutes les
garanties.
CAUTION
Keep all objects off the top of the heater. Blocking
air flow could damage the heater, and may void the
warranty.
ATTENTION
Ne posez aucun objet sur le dessus de l’appareil.
Il pourrait empêcher la circulation de l’air, ce qui
risquerait d’endommager l’appareil et d’annuler la
garantie.
Be sure that there is water in the pool and that the
surface level is above the skimmer or other inlet of the
pool's filter system.
Confirm that pool water is flowing normally
through the pool system and equipment. With any
new pool or spa installation, operate the filter pump
with the heater off long enough to completely clean
the water. This will remove any installation residue
from the water. Clean the filter at the end of this
operation before starting the heater. Start the heater
in accordance with the Operating Instructions section
of this manual, with particular attention to the lighting
Page 26
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
and shutdown instructions and temperature control
operation.
The heater may not start on the first try. Air in
the gas line or other start-up situations may cause it
to cycle. It will lock out if ignition is not achieved
in three attempts (see Section 9.2, "Service Codes").
To reset the Legacy Model LRZ electronic heater
to provide three (3) additional attempts, turn off the
control and then put it back in either the Pool or Spa
mode.
When the heater starts, immediately feel the
outlet header of the heater to confirm that there is
adequate water flow. The header should not be hot.
Normally, water temperature will rise only a few
degrees as it passes through the heater, and a "hot"
header or pipe indicates low water flow.
WARNING
When the heater is fired for the first time, the combustion chamber refractory binder material is driven
out by the heat of the flame. White smoke and/or
sharp odors may be emitted from the vent during
this period. Do not inhale combustion product fumes
at any time, and especially when these fumes are
being emitted. This "burn-in" period will last only a
few minutes.
AVERTISSEMENT
Lorsque l’appareil est mis en marche pour la
première fois, le matériau liant réfractaire de la
chambre de combustion est expulsé par la chaleur
de la flamme. De la fumée blanche et de fortes
odeurs peuvent se dégager du tuyau d’aération à
ce moment-là. N’inhalez les fumées de combustion
à aucun moment, surtout au moment où elles sont
émises. Cette période de combustion ne durera que
quelques minutes.
7.3.2
Pool Mode - (Normal Heat)
To enable the pool mode, press POOL. The
associated left green LED indicator will light and the
unit will display SET:XXX°.
NOTE
XXX represents the current temperature
setting on the control. The default setting for
pool temperature is 80°F (26°C).
You can change the temperature set point by
pressing the Up or Down button. Repeatedly press
the Up or Down button until you reach the desired
temperature set point. After 5 seconds of inactivity, the
new set point is stored in memory.
When the water temperature falls to 1 degree
below the temperature setting, the control will start the
heater and the associated right LED will light RED.
7.3.3
Spa Mode - (Normal Heat)
To enable the spa mode, press SPA. The
associated left green LED indicator will light and the
unit will display SET:XXX°.
NOTE
XXX represents the current temperature
setting on the control. The default setting for
spa temperature is 102°F (38°C).
You can change the temperature set point by
pressing the Up or Down button. Repeatedly press
the Up or Down button until you reach the desired
temperature set point. After 5 seconds of inactivity, the
new set point is stored in memory.
When the water temperature falls to 1 degree
below the temperature setting, the control will start the
heater and the associated right LED will light RED.
When raising the temperature of a cold pool,
program the time clock to turn the pump off 23 hours
after the start time (e.g., If the start time is 2:00 PM,
then set the stop time at 1:00 PM.). This lets the
filter system and heater operate continuously until
the water reaches the temperature setting on the
temperature control. When that happens, the heater
will automatically shut off, but the filter pump will
keep running.
7.3
Operating the Controller
GAS HEATER IS OFF
PRESS POOL OR SPA
Your new Legacy Model LRZ electronic Pool
Heater is controlled by an advanced microprocessor
based controller that provides a sophisticated yet
simple interface to operate your heater for maximum
efficiency and enjoyment of your pool. To locate the
control buttons, see Figure 19.
7.3.1
Off Mode
When the control panel is turned off, the screen
displays GAS HEATER IS OFF PRESS POOL OR
SPA.
Figure 19. Main Control Panel
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
7.4
To select the length of time for the spa to run,
use the Up or Down button to scroll to display
SELECT SPA TIMER TIME SELECTION.
Press the MENU button to select. The display
SELECT SPA TIME 01:00 HRS: (default time
setting) is displayed. Use the Up or Down button
to select the length of time for the spa to run
(between 00:15 to 23:00 hours incremented by
00:15 minutes). Press the MENU button to select
how long the spa will run. Press POOL or SPA
to exit the User Setup mode.
User Setup Options
The User Setup options allow the user to select
specific Languages, Temperature Scale, Spa Timer,
and Display Light options.
7.4.1
Language Setup
1.
Make sure the control is in the OFF mode.
2.
To enter the User Setup mode, press and hold the
MENU button for 5 seconds.
NOTE The display will revert back to OFF after one
minute since the last key press.
3.
To select a language, use the Up or Down
button to display SELECT USER SETUP
LANGUAGE. Press the MENU button. The
SELECT LANGUAGE ENGLISH (default
language) appears, use the Up or Down button
to scroll through the language options. When
you reach the desired language, press the MENU
button to select the language. Press POOL or
SPA to exit the User Setup mode.
7.4.2
Make sure the control is in the OFF mode.
2.
To enter the User Setup mode, press and hold the
MENU button for 5 seconds.
3.
To select temperature scale, use the Up or Down
button to scroll through to display SELECT
USER SETUP TEMPERATURE SCALE. Press
the MENU button. The SELECT TEMP SCALE
°F: (default temperature scale) appears, use the
Up or Down button to scroll to display SELECT
TEMP SCALE °C:. When you reach the desired
temp scale, press the MENU button to select.
Press POOL or SPA to exit the User Setup mode.
7.4.3
7.4.4
Spa Timer Setup
1.
Make sure the control is in the OFF mode.
2.
To enter the User Setup mode, press and hold the
MENU button for 5 seconds.
3.
To select spa timer, use the Up or Down button
to scroll through to display SELECT USER
SETUP SPA TIMER. Press the MENU button.
The SELECT SPA TIMER CONTINUOUS:
(default spa timer setting) is displayed. To turn
the spa on or off indefinitely, press the MENU
button to select.
Display Light Setup
1.
Make sure the control is in the OFF mode.
2.
To enter the User Setup mode, press and hold the
MENU button for 5 seconds.
3.
To select display light setup, use the Up or Down
button to scroll through to display SELECT
USER SETUP DISPLAY LIGHT. Press the
MENU button. The SELECT DISPLAY LIGHT 2
MIN TIMEOUT: (default display light setting) is
displayed. This option allows the display light to
turn off after 2 minutes. Press the MENU button
to select. Use the Up or Down button to scroll
to display SELECT DISPLAY LIGHT LIGHT
OFF:, this option allows the display light to turn
off, press the MENU button to select. Use the
Up or Down button to scroll to display SELECT
DISPLAY LIGHT LIGHT ON:, this option allows
the display light to turn on, press the MENU
button to select. Press POOL or SPA to exit the
User Setup mode.
Temperature Scale Setup
1.
Page 27
7.5
Set Point Lockout
Make sure the control is in the ON mode (POOL
or SPA), press and hold the Up and Down buttons for
5 seconds. The set point will be locked and the control
will operate in the mode it was in when the Set Point
Lockout occurred. If an attempt to change the set point
is made while the control is in Set Point Lockout,
the control will display SET POINT LOCKED. To
unlock the Set Point Lockout, press and hold the Up
and Down buttons for 5 seconds. The unit will display
SET POINT UNLOCKED.
Page 28
7.6
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
WARNING
Do not attempt to light the heater with the door off.
Doing so may cause severe bodily injury.
AVERTISSEMENT
Ne tentez pas d’allumer l’appareil sans que la
porte soit en place. Vous pourriez être victime de
blessures corporelles graves.
9.
Set the time clock, if one is installed.
7.6.2
Shutdown
Complete shutdown instructions are as follows:
1.
Set both temperature controls to their lowest
setting.
2.
Turn off the control. Make sure the display
shows that the heater is off.
3.
Turn off all electrical power to the heater at the
junction box.
4.
Open the heater door and turn the gas valve knob
clockwise to off.
Lighting instructions are as follows:
5.
Turn off all electrical power to the heater at the
main junction box.
Shut off the external gas supply valve to the
heater.
7.7
Before starting your heater, be sure that all of the
functions and limits of the Legacy controller have been
set according to the previous sections of this manual.
Once the control is set to your preferences, follow the
instructions outlined below. Read and follow all safety
instructions first. A more detailed set of lighting and
shutdown instructions are listed on the label located on
the inside of the heater door and in Figure 21.
7.6.1
1.
the thermostat setting (desired temperature) to be
greater than the water temperature. The igniter
lights the burner when the thermostat calls for
heat.
Lighting and Shutdown Procedures
Lighting the Heater
2.
Remove the heater door and turn the heater gas
valve to off.
3.
Wait 5 minutes before trying to start the heater.
4.
Turn the gas valve control knob counterclockwise to ON (see Figure 20.)
5.
Replace the heater door.
6.
Turn on electrical power to the heater.
7.
Turn on the filter pump.
8.
Set the heater control to the "SPA" mode. If the
temperature of the water exceeds the thermostat
setting it is necessary to increase the thermostat
setting to exceed the water temperature. Adjust
Figure 20. Gas Valve
Adjusting the Water Pressure
Switch
CAUTION
The water pressure switch should be adjusted to
turn the heater off when the pump is off. Setting the
switch to close at too low of a flow can damage the
appliance. Adjust the switch to turn the heater off,
not on.
ATTENTION
Le manocontact de pression d’eau doit être réglé
de façon à ce que l’appareil cesse de fonctionner
si la pompe s’arrête. Si le manocontact est réglé
pour se fermer lorsque le débit d’eau est trop faible,
l’appareil risque de s’endommager. Réglez le manocontact pour qu’il arrête l’appareil, et non pour qu’il
le mette en marche.
The pressure switch is preset at the factory for
activation at 2 psi (14 kPa). Do not adjust the pressure
switch if the heater is installed more than 15 feet (4.57
m) below the pool surface. Consult your local Jandy
representative for recommendations.
On some installations, the piping from the heater
to the pool is very short. The back pressure could be
too low to trigger the pressure switch. If this happens,
it may be necessary to install a directional fitting or
elbows where the return line enters the pool. This will
increase back pressure enough for the heater to operate
properly.
Make sure the pool filter is clean before making
any pressure switch adjustment. A dirty filter will
restrict the water flow and the pressure switch cannot
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
FOR YOUR SAFETY READ
BEFORE OPERATING
WARNING: If you do not follow these instructions exactly, a
fire or explosion may result, causing property damage, personal
injury or loss of life.
A. This appliance does not have a pilot light. It is equipped with an ignition device
which automatically lights the heater. Do NOT try to light the burners by hand.
B. BEFORE OPERATING, smell all around the appliance area for gas. Be sure to
smell next to the floor because some gas is heavier than air and will settle on the
floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance
• Do not touch any electric switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If
the knob will not push in or turn by hand, don't try to repair it, call a qualified
service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of
the control system and any gas control which has been under water.
OPERATING INSTRUCTIONS
1. STOP! Read the safety information above on this label.
2.* Set the thermostat for POOL and SPA to 70°F(21°C), or the lowest possible
setting and switch the controller mode to OFF.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which automatically lights the
heater. Do not try to light the burners by hand.
5. Remove the heater door.
6. Turn gas control knob clockwise
to OFF.
7. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the
floor. If you smell gas, STOP! Follow "B" in the safety information above on this
label. If you don't smell gas, go to next step.
8. Turn gas control knob counterclockwise
to ON.
9. Replace control access panel
10. Turn on all electric power to appliance.
11.* Set thermostat to desired settings for "Pool and Spa" and switch the controller
mode from OFF to either POOL or SPA.
12. If the appliance will not operate, check that the filter pump is on, the filter is clean
and water is flowing to the pool. Otherwise, follow the instructions "To Turn Off
Gas To Appliance" and call your service technician or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1.* Set the thermostat for POOL and SPA to 70°F(21°C) or the lowest possible setting
and switch the controller mode to OFF.
2. Turn off all electric power to the appliance if service is to be performed.
3. Turn gas control knob clockwise
to OFF.
4. Replace control access panel.
H0324900*See manual for details of operation of thermostat control.
Figure 21. Lighting and Shutdown Instructions
Page 29
PRÉCAUTIONS À LIRE
AVANT D’UTILISER
AVERTISSEMENT:Si vous ne suivez pas ces instructions
à la lettre, il y a risque d’incendie ou d’explosion, pouvant entraîner
des dégâts matériels et des blessures graves voire mortelles.
A. Cet appareil ne possède pas de veilleuse. Il est équipé d’un dispositif qui allume
automatiquement le chauffe-eau. Ne PAS essayer d’allumer les brûleurs à la main.
B. AVANT DE METTRE EN MARCHE, humer pour s’assurer de l’absence de gaz autour
de l’appareil. Sentir à proximité du sol car certains gaz sont plus lourds que l’air et
ne s’élèvent pas.
MARCHE À SUIVRE EN CAS D’ODEUR DE GAZ
• Ne pas tenter d’allumer aucun appareil.
• Ne toucher à aucun interrupteur ; ne pas utiliser le téléphone dans le bâtiment.
• Appeler immédiatement la compagnie de gaz en utilisant le téléphone d’un voisin.
Suivre les instructions données par celle-ci.
• Si l’on n’arrive pas à joindre la compagnie de gaz, appeler les pompiers.
C. Enfoncer et tourner le bouton de commande du gaz à la main uniquement. Ne
pas utiliser d’outil. Si le bouton résiste, ne pas essayer de le réparer ; appeler un
réparateur qualifié. Une réparation forcée ou mal faite peut causer un incendie ou
une explosion.
D. Ne pas utiliser cet appareil si une de ses pièces a été sous l’eau. Appeler immédiatement un réparateur qualifié pour inspecter l’appareil et remplacer toute partie du
circuit de commande et toute commande de gaz qui aurait subi des dégâts d’eau.
MODE D’EMPLOI
1. ARRÊT! Lire les informations de sécurité fournies ci-dessus.
2.* Régler le thermostat pour PISCINE et SPA à 70°F (21°C), ou le plus bas arrangement, et commutez le contrôleur à ARRÊT.
3. Couper toute arrivée de courant de l’appareil.
4. Cet appareil est équipé d’un dispositif qui allume automatiquement le
chauffe-eau. Ne pas essayer d’allumer les brûleurs à la main.
5. Retirer la porte du chauffe-eau.
6. Tourner le bouton de commande du gaz dans le sens horaire
jusqu’à ARRÊT.
7. Attendre cinq (5) minutes que le gaz se soit dissipé. Puis humer pour s’assurer de
l’absence de gaz, en particulier au niveau du sol. Si cela sent le gaz,
ARRÊTER tout de suite ! Suivre les précautions de la partie “B” ci-dessus. S’il n’y
a pas d’odeur de gaz, passer à l’étape suivante.
8. Tourner le bouton de commande du gaz dans le sens anti-horaire
jusqu’à
ON.
9. Remettre le panneau d’accès aux commandes.
10. Remettre l’appareil électrique sous tension.
11.* Régler le thermostat aux règlages désirés pour PISCINE et SPA et commutez le
contrôleur de ARRÊT, à soit PISCINE ou SPA.
12. Si l’appareil électrique ne fonctionne pas, s’assurer que la pompe à filtre est
allumée, que le filtre est propre et que la piscine est alimentée en eau. Sinon,
suivre les instructions de “Coupure de l’arrivée de gaz de l’appareil” et appeler le
réparateur ou la compagnie de gaz.
COUPURE DE L’ARRIVÉE DE GAZ DE
L’APPAREIL
1.* Régler le thermostat pour PISCINE et SPA à 70°F (21°C), ou le plus bas
arrangement, et commutez le contrôleur à ARRÊT.
2. Couper toute arrivée de courant de l’appareil s’il doit subir une réparation.
3. Tourner le bouton de commande du gaz dans le sens horaire
jusqu’à OFF.
4. Remettre le panneau d’accès aux commandes.
*Voir le manuel pour les détails concernant l'opération du contrôle de thermostat.
Page 30
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
be adjusted properly.
To adjust the pressure switch, proceed as follows
(see Figure 22).
1.
Set the heater control to the "OFF" mode.
2.
Remove the side panel above the front header to
access the water pressure switch.
3.
Start the filter pump and confirm by means of a
voltmeter that the pressure switch closes (if the
switch fails to close, replace it with a switch that
has a lower minimum setting).
4.
Set the heater control to either "POOL" or "SPA".
Heater should start.
5.
Pry out the top cap on the pressure switch.
6.
Use a 7/32 inch Allen wrench to turn the adjustment screw very slowly clockwise until the
heater goes off.
7.
Slowly turn the pressure switch adjustment screw
counterclockwise one-quarter turn. The heater
should come back on.
8.
Check the adjustment by turning the filter pump
OFF. The burners should shut off immediately.
If they do not, restart the filter pump and repeat
Steps 6 and 7. Check the adjustment again.
9.
Return the pool temperature control to the
desired temperature.
It may be necessary to repeat these steps to get
a proper setting. The switch must be set so that the
heater will not fire unless the pump is running. If a
proper setting cannot be reached, contact the factory
service department.
7.8
Temperature Rise
The Legacy pool and spa heaters have an
internal bypass which accommodates a wide range of
water flow. The bypass is easily adjustable to change
the temperature rise for optimum performance and
length of heater life. The bypass assures constant heat
exchanger flow even though flow through the filter
system will vary depending on how dirty the filter is.
For most installations, an external bypass valve
is not needed in the heater water piping. This is due to
the large size of the heater's internal bypass valve. If
the pump flow rate is known to exceed 125 gpm (7.9
l/s), an external bypass may be needed to assure proper
heater operation.
Water flow should be confirmed upon start-up of
the heater and in most servicing situations. If the flow
is not normal, corrections must be made to the pool
system. Flow is evaluated by determining the water
temperature rise through the heat exchanger.
Before checking the temperature rise, make sure
that the pool filter is clean and that gas supply and
manifold pressures are correct. If necessary, clean
all components of the filter system. Temperature rise
is measured in the return header of the Legacy. To
measure the temperature rise, turn off the filter pump
and remove the plastic plug protruding through the
cabinet on the return header side of the heater. See
Figure 23. With the plug removed, install the special
thread adapter and Pete’s Plug®* fitting and insert a
pocket thermometer. A temperature rise measurement
kit is available through your Jandy distributor. See
Section 11 of this manual for the correct kit number.
The internal bypass can be adjusted by means of
a screw on the right-hand side of the header. To adjust
the temperature rise to within the ranges specified in
Table 6, proceed as follows:
1.
If the piping system has an external bypass valve,
close it.
2.
Set the heater's control panel to the "OFF"
position.
* Pete's Plug is a registered trademark of the Peterson Equipment Co.
BYPASS
ADJUSTMENT
SCREW
THERMOMETER WITH
PETE'S PLUG®
Figure 22. Adjustment of Pressure Switch
Figure 23. Temperature Rise Measurement
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
3.
Start the filter pump.
4.
After three minutes, note and record the thermometer reading. This is the pool water temperature.
5.
Start the heater by setting the control panel to
either "POOL" or "SPA". Allow the heater to
operate for five minutes or more. Note and record
the thermometer reading. Subtract pool water
temperature from this reading. This difference
is the temperature rise. Refer to Table 6. If your
measured temperature rise is within the range
designated for your heater, skip steps 6 through
8.
6.
Locate the bypass adjustment screw on the righthand side of the header (see Figure 23). Loosen
the nut so that the screw can be adjusted. A slight
water leak past the nut may be expected. Turn the
screw counterclockwise to decrease the temperature rise, and clockwise to increase the temperature rise as needed to achieve the ranges in Table
6. After the adjustment, tighten the nut so that no
leaks occur.
7.
If the temperature rise is too low and cannot
be raised by means of the adjustment screw,
the flow is in excess of 125 GPM (7.9 lps). An
external bypass will need to be installed, or if one
already exists, open the external bypass valve
gradually until the temperature range in Table 6
is achieved.
8.
If it was necessary to adjust the external bypass
as outlined in step 6, scribe a line on the bypass
shaft and case to mark the correct adjustment
position. Wire or remove the valve handle to
prevent tampering.
heater internal bypass assembly also affects measured
temperature rise.
Section 8. Maintenance
8.1
Minimum
Temp Rise,
°F (°C)
Maximum
Temp Rise,
°F (°C)
Minimum
System Flow
GPM (lps)
125
3 (2)
7 (4)
30 (1.9)
175
5 (3)
10 (6)
30 (1.9)
250
7 (4)
15 (8)
30 (1.9)
325
9 (5)
17 (9)
30 (1.9)
400
11 (6)
20 (11)
30 (1.9)
In a system without external bypass, it may be
necessary to make changes. If temperature rise is too
low, a manual bypass must be installed. If temperature
rise is too high, there is inadequate flow, possibly
requiring a change to the piping system or a larger
pump. Before proceeding with either remedy, verify
proper heater operation. Low gas input results in low
temperature rise and vice-versa. A problem with the
Water Chemistry
The mineral content of swimming pool water
increases daily due to natural evaporation and the
addition of sanitizing chemicals. If the mineral
concentration in the pool gets too high, the excess
minerals will deposit on the walls of the pool, in the
filter system, and in the heater tubes.
The proper chemical balance in spa water is more
critical than in a swimming pool heater operation. Due
to the spa's size, high water temperature and heavy
usage, chemical values in a spa can vary greatly. This
chemical imbalance can result in unsanitary water
conditions, and affect the life of the heater.
Proper chemical balances are necessary for
sanitary bathing conditions as well as ensuring your
heater's long life. Kits are available from your local
pool supply dealer for making the various tests for
mineral content. One of these kits will detect copper in
the system. This is usually a warning that corrosion is
taking place, possibly due to a low pH value combined
with other chemistry problems. The condition can
be corrected by changing the spa water and closely
monitoring the pH factor and chemical properties of
the water. Be sure to keep your chemical levels within
the values indicated in Table 7. Zodiac Pool Systems,
Inc. does not warrant heat exchangers damaged by
corrosive chemical levels or excess dissolved solids
in pool or spa water.
For spas, it is also necessary to perform water
changes in addition to chemical treatment. It is
recommended to change the spa water every 60 days
for light usage and every 30 days if usage is heavy.
Table 7. Optimal Water Chemistry Ranges*
Table 6. Water Temperature Rise and Flow Rates
(Measured at Return Header)
Model
Page 31
Test
Recommended Level
Free Chlorine
1.0 to 3.0 ppm
Bromine
2.0 to 4.0 ppm
pH
7.4 to 7.6
Total Alkalinity (TA)
80 to 120 ppm
Calcium Hardness (CH)
175 to 400 ppm
Cyanuric Acid
50 to 75 ppm
Total Dissolved Solids (TDS)
1000 to 2000 ppm (Excluding dissolved NaCl from a Salt Chlorine
Generator)
Copper
0 ppm
* Concentration levels taken from "Basic Pool and Spa
Technology" published by APSP (Association of Pool and Spa
Professionals).
Page 32
8.2
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Seasonal Care
CAUTION
Do not operate this heater outdoors at temperatures
below 20 degrees Fahrenheit (°F) (-7 degrees
Celsius [°C]).
ATTENTION
Ne faites pas fonctionner cet appareil à l’extérieur à
des températures inférieures à 20 degrés Fahrenheit (oF) (-7 degrés Celsius [oC]).
8.2.1
After all water has drained from the heater, check
for mineral buildup in the openings.
6.
Use compressed air to blow out any standing
water remaining in the heat exchanger.
7.
Inspect the gaskets on the drain plugs and
reinstall plugs, but do not tighten.
8.
Disconnect the pressure switch from the copper
tubing. See Figure 25.
8.2.3
Spring and Fall Operation
During periods when the pool is only going to
be used occasionally, set the pool and spa control
temperatures to 70°F (21°C) on the Legacy. (See
Section 7.3.2. This prevents the pool water from
becoming chilled, and minimizes the time required
to raise the pool water back up to the desired
temperature.
If the heater is not going to be used for a long
period of time, shut it down completely. Follow the
instructions found on the inside of the heater, or Figure
21.
8.2.2
5.
Winterizing
In areas where freezing temperatures occur in
winter and the pool or spa will not be used, have your
service technician perform the following steps:
1.
Turn off the main gas valve to the heater, outside
the heater jacket.
2.
Remove heater door.
3.
Shut down the heater following the shutdown
instructions found on the inside of the heater or
refer to Figure 21.
4.
Remove the drain plugs from the inlet/outlet
header (see Figure 24), and completely drain the
heater before the first frost.
Spring Start-up
To restart the heater in the spring, have a
qualified professional technician reassemble the heater
as follows:
1.
Attach the copper tubing to the pressure switch
(see Figure 25).
2.
Tighten the drain plug.
3.
Make sure that power is supplied to the pump.
Turn on the filter pump and circulate water
through the heater for 5 minutes. Check for leaks
while circulating.
4.
Turn on the main gas supply to the heater at the
gas cock outside the heater jacket.
5.
Turn on the heater following the lighting instructions found on the inside of the heater, or
Figure 21 of this manual.
8.3
Inspection and Service
Zodiac Pool Systems, Inc. designs and constructs
the heater to provide long performance life when
installed and operated properly under normal
conditions. Periodic inspections, especially at spring
start-up, are important to keep your heater running
safely and efficiently through the years. Improper
maintenance can result in conditions where nausea
or asphyxiation from carbon monoxide or flue gases
could cause severe injury, property damage or death.
COPPER
TUBING
O-RING
DRAIN PLUG
Figure 24. Draining the Heater
Figure 25. Pressure Switch Copper Tubing
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in
flue gases which could result in severe injury, or
death.
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.
8.3.1
Owner Inspection
Zodiac Pool Systems, Inc. recommends that you
inspect the heater on a continual basis and especially
after abnormal weather conditions. The following
basic guidelines are suggested for your inspection:
1.
Keep the top and surrounding area of the heater
clear of all debris.
2.
Keep the area around and beneath the heater
clean and free of all combustible materials such
as paper, leaves, etc.
4.
WARNING
Do not use this heater if any part has been under
water. Immediately call a qualified service technician to inspect the heater and replace any part of
the control system and any gas control which has
been under water.
AVERTISSEMENT
N'utilisez pas cet appareil s'il a été plongé dans
l'eau, même partiellement. Faites inspecter
l'appareil par un technicien qualifié et remplacez
toute partie du système de contrôle et toute
commande qui ont été plongés dans l'eau.
3.
If the heater is equipped with a pressure relief
valve, check for corrosion in and around the
valve. Twice a year, with the filter pump on, lift
the release lever on the top of the valve to make
sure that water runs freely through it. If corrosion
is found, replace the pressure relief valve. When
replacing the valve, be sure that the pump is off.
Install the valve so that the discharge is directed
away from any area that may be damaged by
water.
Be sure all combustion air and ventilation
openings are not blocked. Check for spider webs
and other debris inside the heater, in the vents on
all sides of the heater jacket and in the exhaust
outlet– especially after a long period of nonuse.
8.3.2
Professional Inspection
Inspections performed at least once a year by
a qualified technician are required to maintain your
heater's safe and efficient operation. The following
basic safety checks must be performed.
1.
Inspect the venting system for blockage, leakage,
and corrosion.
2.
Check for spider webs or other obstructions in
the main burner orifices – especially at spring
start-up. Clean with wire brush if necessary.
3.
Check for loose or broken wires and terminal
connections.
4.
Inspect the electrical controls, specifically the
following:
a. High limit controls.
b. Water pressure switch.
c. Power interface/Temperature control.
d. Ignition control.
e. Automatic gas valve.
f. Fusible link.
g. Control circuit fuse.
5.
Inspect the external surfaces of the heat
exchanger tubes for black carbon soot buildup by
placing a mirror between and under the burners
when the heater is firing. Remove any soot that
has collected on the tubes, and correct the cause.
CAUTION
Do not store or use gasoline or other flammable
vapors, liquids or chemicals in the vicinity of this or
any other appliance.
ATTENTION
Ne pas entreposer ni utiliser d'essence ni d'autres
vapeurs ou liquides inflammables à proximité de cet
appareil ou de tout autre appareil.
Page 33
NOTE: After installation and first start-up, check the
heat exchanger for black carbon soot buildup
after the following periods of operation: 24
hours, 7 days, 30 days, 90 days, and once
every 6 months thereafter.
6.
Make sure that the pressure switch operates
properly by shutting the filter pump off and on
a few times. The burner should go off immediately after the pump stops. An ignition sequence
should start shortly after the pump is turned back
on.
7.
Conduct a normal operating cycle and observe
that the sequence proceeds as intended.
Page 34
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Section 9. Troubleshooting
CAUTION
For your safety, when starting the heater, keep your
head and face away from the burner area opening
to prevent any risk of personal injury.
ATTENTION
Pour votre sécurité personnelle, lorsque vous
mettez l’appareil en marche, tenez votre tête et
votre visage loin du brûleur pour éviter tout risque
de blessure.
8.
Make a visual check of the main burner flame.
The flame can be seen in a mirror arrangement
held beneath the burners. The flame should be:
a. Blue in color.
b. 1 to 4 inches (25mm to 102mm) above burner
surface (see Figure 26).
9.
Perform a temperature rise test in accordance
with Section 7.8.
FLAME
BURNER
Figure 26. Main Burner Flame
9.1
General Heater Troubleshooting
Table 8 lists some of the more common
problems, causes and solutions encountered when
running the heater. Most problems occur when
the heater is being started for the first time after
installation or at spring start-up. Careful installation
and maintenance will help ensure years of trouble free
use from your Legacy heater.
9.2
Service Codes
The Legacy Model LRZ electronic controller
monitors several functions of the heater. In the event
of a malfunction, the Legacy controller will display a
FAULT message. Table 9 lists the Legacy Model LRZ
electronic Heater Service Codes along with potential
causes and remedies.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 35
Table 8. Legacy Model LRZ electronic Troubleshooting Guide
#
Symptom
1.
Pump not operating
2.
Flame roll-out on
start-up
3.
Spillage at vent cap
Cause
A.
B.
C.
D.
E.
Remedy
A.
B.
C.
D.
E.
Check circuit breakers and power source.
Replace.
Recheck wiring.
Replace pump relay.
Check time clock setting and current time.
F.
No power
Pump defective
Incorrectly wired
Pump relay defective
Time clock settings not synchronized with
actual time
Controller defective
F.
Replaced controller
A.
B.
C.
D.
Blocked flue on start-up
Igniter out of position (delayed ignition)
Blocked heat exchanger
Refractory tile out of place
E.
F.
Altered draft hood
Downdraft conditions
A.
B.
C.
D.
E.
F.
Remove blockage.
Correct igniter position.
Clean and correct as necessary.
Correct or replace tile as necessary.
Install factory-provided draft hood.
Install vent cap.
A.
Cold chimney
A.
B.
C.
D.
E.
Vent pipe pitches down to chimney
Blocked chimney
Draft hood altered
.
Prefabricated chimney with incorrect cap
B.
C.
D.
E.
Allow heater to operate 5 minutes to create
draft action.
Reinstall vent pipe to pitch up from heater to chimney.
Remove blockage.
Install factory-provided draft hood.
Install a Nationally Recognized Testing Lab (NRTL)
listed vent cap.
4.
Flame has lazy yellow
tip
A.
Low primary air
A.
Correct manifold pressure according to rating plate.
Correct lazy yellow tip orifice size if necessary (see
parts list). Clean burner ports if dirty.
5.
Not enough heat
A.
Inadequate gas supply
A.
B.
Low manifold gas pressure
B.
C.
D.
Heater size inadequate
Temperature rise set incorrectly
C.
D.
Gas meter too small. Gas line from meter to heater
too small.
Gas pressure on heater manifold, should be adjusted
to 4.0" W.C. (Natural), 9.0" W.C. (Propane).
Replace with heater of higher input.
Adjust temperature rise according to Section 7.8 of
this manual.
6.
Heater pounding or
knocking
A.
Inadequate water flow through heater
A.
Check temperature rise between inlet and outlet
heater piping. See Section 7.8 for recommended
range of terperature rise. If temperature rise is above
the maximum recommended, adjust the bypass.
Check for closed valve in system.
7.
Heater condensing
A.
Low water temperature
A.
B.
Heater plumbed backwards
B.
Flue product moisture will condense at the start-up
until the heater water temperature reaches the normal
operating conditions.
Correct Plumbing.
A.
B.
C.
Gas valve not at “on” position
Air in gas line
Gas valve failed
A.
B.
C.
Turn knob to “on” position.
Cycle ignition sequence until air is out of the gas line.
Replace gas valve.
8.
Igniter lights but main
burners wil not come
on
Page 36
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Table 9. Legacy Model LRZ Electronic Heater Service Diagnostic Guide
DISPLAY FAULT
Display shows
NO FLOW
CAUSE
1. Pump is not running.
2. Low pump pressure.
3. Pressure switch fault.
FAULTHIGH LIMIT
1. Water temperature in heater exceeds the
internal limit.
2. Limit switch fault.
REMEDY
1. This is a normal display when the pump is OFF. No
Service Required.
2. Clean filter or clear blockage, check position of valve
in plumbing system.
3. Adjust or replace pressure switch. Refer to qualified
service personnel.
1. Verify function of high limit switches. Perform temperature
rise test. Identify and correct cause of overheating. Refer to
qualified service personnel.
2. Identify and correct loose connections or replace switches.
Refer to qualified service personnel.
FAULTFUSELINK/FIELD
1. Fusible link fault.
1. Identify and correct loose connections or replace
fusable link. Refer to qualified service personnel.
FAULTCHECK IGN CONTROL
1. Air flow restricted at intake or discharge.
1. Check for proper clearances around heater and for
adequate room ventilation if enclosed. Inspect for
blockage or restriction at discharge of flue. Refer to
qualified service personnel.
2. Clean filter or identify and repair cause of pump oscillation.
3. Identify and repair incorrect supply pipe size or pipe line
blockage.
4. Identify and correct loose wiring connections, or problems
with igniter, flame sensor, gas valve, or ignition control.
Refer to qualified service personnel.
2. Oscillating pump pressure.
3. Low gas supply pressure.
4. No flame at burners.
FAULTSHORTED H2O SENSOR
or
FAULTOPEN WATER SENSOR
1. Faulty wiring or connection.
2. Failed sensor.
1. Inspect sensor wiring. Ensure sensor is connected into
Power Interface Board.
2. Replace temperature sensor. Refer to qualified service
personnel.
Page 37
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Section 10. Professional
Maintenance and Service
WARNING
SERVICING SAFETY
Some of the servicing procedures for the Legacy
Model LRZ electronic heater are hazardous
because they involve fuel gas, electricity, moving
parts and procedures which require testing or
temporary bypass of safety controls. For this
reason, the heater must be serviced only by a
qualified professional service technician.
IMPROPER SERVICE HAZARD
The Legacy Model LRZ electronic heater incorporates unique design features. Incorrect service of
this heater can result in personal injury or damage
to property. To avoid such hazards, the heater must
be serviced only by a qualified professional service
technician.
AVERTISSEMENT
PRÉCAUTIONS LORS DES RÉPARATIONS ET
DE L’ENTRETIEN
Certaines procédures d’entretien et de réparation
des appareils de chauffage à faibles émissions
Legacy et Legacy présentent des dangers, car
elles mettent en jeu des gaz combustibles, des
composants électriques, des pièces mobiles et des
procédures qui nécessitent des mises à l’essai ou la
dérivation temporaire des commandes de sécurité.
Pour cette raison, l’appareil de chauffage doit être
entretenu et réparé uniquement par un technicien
professionnel qualifié.
DANGERS D’UN ENTRETIEN INADÉQUAT
Les appareils de chauffage à faibles émissions
comportent des caractéristiques techniques
uniques. Une réparation ou un entretien inadéquat
peut entraîner des blessures corporelles ou des
dommages à la propriété. Pour cette raison,
l’appareil de chauffage doit être entretenu et réparé
uniquement par un technicien professionnel qualifié.
10.1
General Information
A qualified professional technician must service
the Legacy Model LRZ electronic pool heater using
Zodiac Pool Systems, Inc.'s service procedures. Before
calling for service, however, the owner should check
for obvious problems. The other components in the
pool system, including pump, filters and strainers,
water valves, gas supply, electrical power and time
clocks, have an affect on heater operation.
Confirm that the heater control is set to either
POOL or SPA and that the corresponding temperature
set point is set high enough to make the heater
operate. Make sure the pump is operating, that the
filter and strainers are not clogged, that there are no
mispositioned water valves, that the gas or electric
power supplies are not shut off and that time clocks
are properly adjusted. Also be sure that there is no
blockage of the exhaust vent grill or rear louvers,
which supply combustion air to the burners.
10.2
Natural-Draft Combustion System
The Legacy Model LRZ electronic pool and spa
heater has an atmospheric combustion system. This
system is illustrated in Figure 27.
As the heated exhaust gases rise out of the
combustion chamber, flow is created through the
system and fresh combustion air is drawn into the
heater through the louvers cut into the front and sides
of the heater. Gas is forced through an orifice into
the open end of a burner. When the gas flows into the
burner, a “negative” pressure is created at the opening
of the burner. This negative pressure pulls air into the
burner with the gas and mixes the two together. As
the gas/air mixture flows through the burner ports it is
ignited in the combustion chamber. Hot combustion
products then rise through a highly efficient heat
exchanger. Combustion products then enter a flue
collector and are directed to the outdoors through the
top of the heater or a vent pipe and cap.
10.3
1.
Heater Components and Their
Operation
Gas Valve / Regulator - The gas valve controls
gas flow into the manifold. It provides flow only
when the temperature control requires heat and
only if all safety controls enable operation. It
is also a positive pressure regulator. It regulates
the gas pressure in the manifold to specifications addressed earlier in this manual. This is
necessary for proper operation of the burner
system.
VENT TOP
FLUE COLLECTOR
HEAT EXCHANGER
COMBUSTION CHAMBER
BURNER
BURNER TRAY SHELF
Figure 27. Atmospheric Combustion System
Page 38
2.
3.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Temperature Control - The Legacy Models are
equipped with an electronic control which senses
water temperature by means of a thermistor and
controls heater operation to bring the water to
the temperature selected. It has an option for two
separate thermostat settings which are typically
used to set pool and spa temperatures.
Ignition Control - The ignition control provides
energy for ignition of the air/gas mixture,
monitors the flame and controls the gas valve.
Then it applies electrical power to a "hot surface"
igniter. When the igniter is hot enough, the
ignition control opens the gas valve. It has
sophisticated means to sense ignition and flame
condition so that unburned gas will not escape.
Once the ignition control has sensed flame, it deenergizes the igniter. After the burner is shut off,
the ignition control provides a post-purge period.
4.
Igniter - The hot surface igniter is a ceramic
element which becomes very hot when electrical power is applied to it. The hot surface igniter
directly ignites the air/gas mixture in the combustion chamber.
5.
Flame Sensor - The flame sensor is the electrode
through which the ignition control detects "rectification" of current passed through the flame. Inadequate rectification indicates an unsatisfactory
flame condition. The rectification signal can be
measured by attaching the leads of a DC ammeter
to the two (2) pins on the connector of the
ignition control labeled "FC". A wire harness,
available from Zodiac Pool Systems, Inc., makes
it easier to attach the voltmeter leads. The flame
current should not be less than 1.5 micro-amps.
If the flame signal is less than 1.5 micro-amps,
verify correct gas supply and manifold pressures.
6.
Limit Switches - Two limit switches prevent
excessive water temperature - one at the heat
exchanger outlet and one for water leaving the
heater. If either senses excessive temperature,
burner operation is interrupted.
7.
Water Pressure Switch - This control senses
whether or not water is available to the heater
by measuring back pressure inside of the heat
exchanger. If the pool water pump fails or the
water filter is blocked, the pressure switch
prevents operation of the burner.
8.
Fusible Link - This is a single-use switch which
detects abnormal temperature in the component
compartment of the heater. It is a fusible link
which is held to the combustion chamber just
above the burner tray by a sheet metal bracket.
Excessive temperature in the component compartment, possibly due to a blocked flue or flame
roll-out, will cause the link to fail. This opens
the safety circuit which shuts off the gas valve
and shuts the heater down.
10.4
Electrical Troubleshooting
This section describes procedures for checking
the electrical power and control components of the
heater one at a time and in the order they appear in the
control circuit. It is important to follow the sequence
of this troubleshooting guide because the safety circuit
is connected in series.
NOTE Pump must be running during the
troubleshooting procedure.
These procedures require a Volt-Ohm meter
with a minimum 0-250VAC voltage range, and
1-1000 Ohm resistance range. Figure 28 shows
the power and control circuits and where to take
measurements. Location numbers in circles have
been added, and will be referenced in the following
sections.
Where test points are shown at circuit board
connectors, the probe of the meter can be carefully
pushed into the connector along side of the wire at the
connection to be measured.
The electrical power supply can be checked with
the heater not set to fire. All other procedures need to
be checked with power correctly supplied to the heater,
all external devices set so that the heater is allowed to
fire and the heater's thermostat set so that there is a call
for heat.
As stated at the beginning of the manual, some
of these procedures are hazardous. Only a qualified
service technician should service the heater.
10.4.1 Electrical Power Supply
The electrical components of the Legacy Model
LRZ electronic pool heaters are designed to operate
with supply voltage ranging from 102V to 132V at 60
Hz if connected to a nominal 120 Volt power supply,
or 204V to 264V at 60 Hz if connected to a nominal
240 Volt power supply. Measure supply voltage at
the power supply leads where they enter the heater to
verify that the correct voltage is supplied to the heater.
If no voltage is present, correct this external
power supply problem to the heater. Circuit breakers,
time clock settings or similar devices may be the
problem. Voltage outside of the above ranges may
be due to poor wiring, poor connections, other loads
such as air conditioning compressors or to an electric
utility company problem. Arrange for correction of the
voltage as appropriate.
10.4.2 Controller
The controller must be operational in order to
check the control circuits of the heater.
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
10.4.3 Control Circuit Troubleshooting
The heater controls are arranged in several 24V
60Hz circuits with some operating and safety controls
arranged in series circuits.
Troubleshooting is done by probing for voltage
between the common and various points in the circuit
to determine which component is preventing operation.
Check points are indicated on Figure 28. The black
lead of the meter should be attached to the common
tap on the secondary side of the transformer and may
be left there throughout most of the procedure.
The recommended procedure steps through each
circuit in a sequential way, and each section assumes
that components from all previous sections have been
tested and are operational. However, verifying voltage
at any of the numbered points in that circuit confirms
that all prior components of the circuit are operational.
10.4.3.1 Transformer
Attach the black lead of the voltmeter to the
terminal on the secondary side of the transformer
of the transformer with a yellow wire attached to it
(common). This is test point 1 on Figure 28. Touch
the free red lead of the voltmeter to the terminal on
the secondary side of the transformer with a red wire
attached to it (24V tap), test point 2. The voltmeter
should read between 20-28 Volts AC. If the voltage
does not fall within the limits mentioned above,
replace the transformer.
10.4.3.2 Fuse
Leave the black voltmeter lead in place at test
point 1. Touch the free lead of the voltmeter to test
point 3, which is on the Power Interface Board where
the red wire from the transformer enters the end of the
connector. You will need to push the voltmeter lead
into the back of the connector along side of the wire
pin. The meter should read 20-28 Volts AC. If there
is no voltage, the fuse has failed. Inspect the rest of
the wiring, especially the safety circuit, to be sure that
there is no “short” such as contact of a terminal with
the heater chassis or another terminal which may have
caused the fuse to fail. Correct any such condition and
replace the fuse. Use only a 2 amp, 1 1/4" long x 1/4"
diameter, quick acting, glass tube type fuse.
10.4.3.3 Water Pressure Switch
Start by checking the voltage at the two legs of
this circuit on the controller, (see test points 4 and 5 in
Figure 28). Check the voltage at test point 4, where the
violet wire from the pressure switch enters the two-pin
connector on the controller. If there is not 20-28 Volts
AC nominal at this point, either the controller or the
two-pin wire harness is faulty and must be replaced. If
20-28 Volts AC nominal is detected at test point 4, then
move the red lead of the meter to test point 5 where the
gray wire from the Pressure Switch enters the two-pin
Page 39
connector. If 20-28 Volts AC nominal is detected at
this point, the devices in this circuit are closed and the
circuit is working properly.
If there is no voltage the pressure switch contacts
are open. This is almost always due to a water flow
deficiency, the most common one being a blocked
water filter or defective pump. However, sometimes
it is due to blockage of the copper siphon loop tube or
mis-adjustment of the switch. Investigate thoroughly,
referring to Section 7.7 on “Adjusting the Water
Pressure Switch”. If there is no problem with the pool
system or pressure switch adjustment, replace the
pressure switch.
10.4.3.4 Fusible Link
To check the fusible link/air louver/field interlock
circuit, place the red lead at test point 6. If there is not
20-28 Volts AC nominal, either the controller or the
two-pin wire harness is faulty, or the water pressure
switch is open. If 20-28 Volts AC nominal is detected
at test point 6, then move the red lead of the meter to
test point 7. If 28 Volts AC nominal is detected, the
circuit is closed and working correctly. If the proper
voltage is not detected, the fusible link has opened, or
the wire harness is faulty.
If no voltage is detected at test point 7, the
fusible link has failed. This indicates higher than
normal temperatures in the component compartment
(vestibule). Normal component compartment
temperature is well below 300°F (148.9°C). The
fusible link is designed to fail at temperatures above
305°F (151.7°C). Excessive temperature might be
due to a blocked flue or heat exchanger. Clean the
heat exchanger and clear the flue and vent of any
restrictions. Sometimes the fusible link fails due
to flame roll-out. Flame roll-out may be caused by
delayed ignition or downdrafting in windy areas.
Thoroughly investigate the causes for flame roll-out
and correct the problem when replacing the fusible
link.
10.4.3.5 Temperature Limit Switches
Circuit
Since the limit switches are not easily accessible,
the voltage can be checked at the two legs of the
circuit at the controller (see test points 8 and 9 in
Figure 28).
Check the voltage at test point 8. If there is
not 20-28 Volts AC nominal at this point, either the
controller or the two-pin wire harness is faulty, or one
of the two safeties (water pressure and fuselink) before
it are open. If 20-28 Volts AC nominal is detected at
this point, then move the red lead of the meter to test
point 9 where the black wire from the 130° limit enters
the two-pin connector. If 20-28 Volts AC nominal is
detected at this point, the devices in this circuit are
closed and the circuit is working properly.
If there is no voltage, one of the limit switches
Page 40
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
is open. This is normally due to excessive water
temperature, which should be thoroughly investigated
before replacement of limit switches. Excessive water
temperature may be caused by low water flow. Water
flow deficiency may be due to obvious problems
such as a defective pump or blocked water filter.
Alternatively, excessive water temperature may be due
to over-firing, or to a problem with the water piping or
the heater's internal bypass control. Over-firing might
be a result of an incorrect gas orifice or supply of
propane gas to a heater intended for natural gas.
If there are no such fundamental problems,
identify which of the switches is open. Limit switch
access is through the limit switch plugs on the side of
the heater to which water pipes are connected. Remove
the limit switch plugs from the bottom of the header
and gently remove the switches from the wells.
Note that the limit switches have different
trip points, and it is important that replacements are
correct. The 150°F switch has a red dot on the top of
the switch, and is closest to the heater jacket, must be
installed in the lower well in the header. The 130°F
switch has no dot, and is farthest from the heater
jacket. must be installed in the upper well in the outlet
of the header.
Move the red meter lead to the terminal
connection on the 150°F switch that is connected back
to the controller. The voltmeter should read 20-28
Volts AC nominal. No voltage here means that the
two-pin wire harness is bad and should be replaced. If
voltage is detected at this point move the lead to the
other terminal of the switch. If the voltmeter does not
show voltage then the 150°F limit is bad and should be
replaced. If the meter reads 20-28 Volts AC nominal,
move the lead to the terminal of the 130°F limit that
is connected to the wire that jumps between the two
limit switches. No voltage here means that the wire
assembly is bad and needs to be replaced. 20-28 Volts
AC nominal shows that the wire between the two
limits is making a good connection. Now move the
lead to the other connection terminal on the 130°F
limit. No voltage at this point indicates that the limit
switch has failed and needs to be replaced. Voltage
here would show that the limit is good and that the
two-pin wire harness may have a bad connection.
Replace the wire harness if necessary.
10.4.3.6 Gas Valve Voltage
The gas valve will operate only when there is a
call for heat, all safety circuits have been satisfied and
the hot surface igniter has had power for appoximately
35 seconds. If the gas valve does not operate under
these conditions, check the voltage going to the gas
valve. Place one voltmeter lead on the connector on
the ignition control where the yellow wire is connected
(test point 14). Touch the free lead of the meter to the
gas valve terminal where the brown wire is attached at
the gas valve. This test point will have voltage present
only during a trial for ignition or during normal
operation. The meter should read 20-28 Volts AC.
If there is no voltage, then there is a bad connection
between the gas valve and the ignition control.
Replace the wire harness.
Listen closely to the gas valve when it is first
energized (24V first appears at test point 13 during
the trial for ignition). There should an audible "click"
when the valve opens.
If there is voltage at the gas valve terminal where
the brown wire is attached, but the gas valve does not
open, replace the valve.
10.4.3.7 Igniter/Ignition Control Circuit
WARNING
The igniter, power supply circuit board and some
terminals of the ignition control utilize 120V or 240V
power and require appropriate servicing precautions. Note that wires and terminals of these components may be “hot” even when the component is not
operating.
AVERTISSEMENT
Le dispositif d’allumage, le circuit d’alimentation
électrique et certaines bornes de la commande
d’allumage utilisent une tension de 120 V ou de 240
V et exigent des précautions appropriées lors du
service d’entretien et de réparation. Notez que les
fils et les bornes de ces composants peuvent être
chauds même si le composant ne fonctionne pas.
With the igniter energized, there will be voltage
of 102-132 VAC supplied by the ignition control, test
point J and test point I, if the heater is connected to
a 120V supply. If the heater is connected to a 240V
supply, there will be voltage of 102-132 VAC supplied
by the ignition control, test point L and test point I,
with the igniter energized. This voltage will be applied
only during igniter heat up or trial for ignition. Even
if voltage has been confirmed at the end of the safety
circuit, the “trial for ignition” sequence is imposed
by the ignition control. This sequence consists of a
15 second period of pre-purge, a 40 second period for
heat-up of the igniter and a 7 second trial for ignition.
During this last 47 seconds there is voltage between
test point J and test point I, or between test point L
and test point I. If satisfactory ignition is not achieved,
the igniter is turned off and the system waits for a 15
second inter-purge period. The system may go through
this cycle as many as three times, but thereafter it is
“locked out” by the ignition control for a one hour
period. Additional attempts will be made only if the
call for heat is interrupted by turning off electrical
power or setting the control to “Off” and then back to
"Pool" or "Spa" or after the one hour delay.
To trouble shoot the ignition control's igniter,
observe that the normal ignition sequence takes
place. After the 15 second pre-purge, note the voltage
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
between test points J and I, or test points L and I. Then
look for the glow of the igniter through the view port
on the right side of the combustion chamber. If the
correct voltage is detected between points J and I,
or points L and I during the trial for ignition but the
igniter does not glow, check the connections to the
igniter.
Check the igniter with the ohmmeter. Disconnect
the IGN120 or IGN240 terminals from the ignition
control and the connector at test point I. Place one lead
of the meter on each wire to the igniter. The resistance
should read between 40 and 75 Ohms at ambient air
temperature. If the meter reads outside of this range or
shows an open or short circuit, replace the igniter. If a
short circuit is indicated, it is necessary to investigate
further to find if the short is from the igniter or the
flame sense circuit.
If voltage does not appear between points J and
I, or points L and I during the trial for ignition, there
may be a bad connection, faulty transformer, or a
short on the ignition control. Check all connections,
the transformer, and the ignition control for loose
or corroded connections or failure and replace as
necessary.
Page 41
Section 11. Replacement Parts
11.1
Ordering Information
To order or purchase parts for the Legacy Model
LRZ electronic pool and spa heater, contact your
nearest Jandy dealer or distributor. See the Jandy web
site at www.jandy.com for the nearest service center.
If they cannot supply you with what you need, contact
Customer Service at Zodiac Pool Systems, Inc.,
Telephone (800) 822-7933.
NOTE To supply the correct part it is important that you
state the model number, serial number and
type of gas when applicable. This information
is on the rating plate inside the heater.
Figure 28. Test Point Identification Diagram (1 of 2)
WATER
TEMP
SENSOR
240 VAC
HEATER
POWER
SUPPLY
G
R
BK
Y
BR
BK
BK
BK O BL R
USER INTERFACE1
GAS
VALVE
COIL/AIR
TEMP
WATER
TEMP
W/BK
W/R
R
BK
1
24 VAC
2
W
I
9
BK
7
BK BL
8
O
6
HIPRESS/ LOPRESS/
HILIMIT
FUSELINK
R
24
VAC
BK
4
W
REMOTE
SPA POOL COM
REV
VALVE
24VAC
3
COMP/
IGN
FAN/
LOUVER
JVA
RETURN
JVA
INTAKE
HOT SURFACE
IGNITER
V
K
IGN
L2 FS
BK
FLAME SENSE
J
IGN
120 L1
BK
L
H
FV+ FV-
Y
W
Y/BK
13
14
BR
WATER PRESS
SWITCH
VAL GND
Y
BR
Y/BK
R
IGNITION CONTROL
IGN
240
WATER
PRESS
GR
5
UNIVERSAL CONTROLLER
POWER INTERFACE
Y
R
TRANSFORMER
FUSE
Y
GAS VALVE
Page 42
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Figure 28. Test Point Identification Diagram (2 of 2)
BK - BLACK
BL - BLUE
BR - BROWN
G - GREEN
O - ORANGE
R - RED
V - VIOLET
W - WHITE
W/BK - WHITE WITH BLACK TRACE
W/R - WHITE WITH RED TRACE
Y - YELLOW
Y/BK - YELLOW WITH BLACK TRACE
Factory Wired 24V
Factory Wired 120V/240V
Optional 120V Wiring
BK O BL R
POWER INTERFACE
UNIVERSAL CONTROLLER
USER INTERFACE
120 VAC
HEATER
POWER
SUPPLY
G
R
BK
130F LIMIT
SWITCH
BK
W/BK
W/R
R
Y
R
TRANSFORMER
ROLL-OUT
SWITCH
ALTERNATE 120 VAC WIRING
150F LIMIT
SWITCH
24 VAC
W
F2
W
BK
IGN
120 L1
HOT SURFACE
IGNITER
IGN
240
Ignition Control
F1
W
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Page 43
Page 44
11.2
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Parts List
Key
No.
Description
Model
No.
Order
Part No.
Key
No.
Description
1
Burner Tray Assy, Natural
125-400
R0468901-05
44
3" Coupling Nut Kit w/ O-ring
All
R0454000
1
Burner Tray Assy, LP
125-400
R0469001-05
45
Bypass Assembly, Polymer
125-400
R0453700
2
Burner Tray, Shelf Only
125-400
R0469101-05
46
Bypass Spring, Adjustable, Polymer
All
R0453900
3
Gas Valve, NAT
All
R0494500
47
Tailpiece w/ Union Nut (Set of 2), Polymer
All
R0449000
3
Gas Valve, LPG
All
R0494600
4
Anti-Rotation Bracket
All
R0469700
48
Inlet/Outlet Header Assy, Bronze, 2"
125-400
R0476601-05
5
Hot Surface Igniter
All
R0457501
49
All
R0476700
6
Flame Sensor Rod
All
R0458600
Return Header Assy, Bronze (includes set
of 9 gaskets)
7
Burner, Main
All
R0469800
50
Bypass Assembly, Bronze
125-400
R0476801-05
51
Bypass Spring, Bronze
125-400
R0476901-05
52
Bypass Gasket, Bronze
All
R0011400
53
Heat Exchange Hardware Kit, Bronze
All
R0477200
54
Temp Sensor Mounting Bracket, Bronze
All
R0477400
55
Water Pressure Switch Tubing, Bronze
All
R0477501
Model
No.
Order
Part No.
Water System-Polymer (Continued)
Main Gas Assembly
8
Burner Manifold
125-400
R0469901-05
9*
Orifice Set, Natural Gas, 0-3K ft.
All
R0469200
9*
Orifice Set, Natural Gas, 3-6K ft.
All
R0469300
9*
Orifice Set, Natural Gas, 6-10K ft. (US
only)
All
R0469400
Water System-Bronze
9*
Orifice Set, L.P. Gas, 0-5K ft.
All
R0469500
56
Flange & Gasket Kit, Bronze
All
R0461500
9*
Orifice Set, L.P. Gas, 5-10K ft. (US only)
All
R0469600
57
Flange Bolts, Bronze
All
R0477800
10
Manifold Assy, Natural Gas,
All
R0495601-05
58
3/4 NPT Plug, Bronze
All
R0477900
10
Manifold Assy, Natural Gas, 3-6K ft.
All
R0495701-05
59
Header, Drain Plug, Bronze
All
R0478000
10
Manifold Assy, Natural Gas, 6-10K ft. (US
only)
All
R0495801-05
60
Heat Exchanger Assy, Complete, Copper
All
R0470701-05
60
Heat Exchanger Assy, Complete, CuNi
All
R0500801-05
10
Manifold Assy, L.P. Gas, 0-5K ft.
All
R0495901-05
10
Manifold Assy, L.P. Gas, 5-10K ft. (US only) All
R0496001-05
Electrical System
Water System-All
61
Header Gasket Assembly (Set of 16)
All
R0454300
62*
Bypass Hardware, Gaskets
All
R0453800
11
Universal Control User Interface
All
R3008800
63
Heat Exchanger Tube Assy, Copper
125-400
R0490101-05
12
Universal Control w/ Bezel
All
R0496700
64
Heat Exchanger Tube Assy, CuNi
125-400
R0490301-05
13
Universal Control Power Interface
All
R0470200
65*
Baffles, Heat Exchanger
125-250
R0500001-03
14
Transformer
All
R0061100
15
Temperature Sensor (Regular)
All
R0456500
66
Combustion Chamber Panels
125-400
R0494901-05
16
Temperature Sensor (Salt)
All
R0477300
67
Igniter Bracket w/ Shield
125-400
R0484000
17
Gasket, Temperature Sensor
All
R0456600
18
Mtg Plug, Temperature Sensor
All
R0456800
68
Door with Latch
125-400
R0470901-05
19
Cap Sensor/Press Switch w/ O-Ring
All
R0455400
69
Latch Assembly
All
R0334900
20
Pressure Switch, 2 PSI
All
R0013200
70
Grommet, Sealing, 2"
All
R0460300
21*
Pressure Switch, 1-10 PSI
All
R0015500
71
Button Plug, 7/8"
All
R0491100
22
Water Pressure Switch Tubing
All
R0483600
72
Rear Panel Assy
125-400
R0482301-05
23
High-Limit Switch Assembly
All
R0457400
73
Side Panel, Right
All
R0482400
24
High-Limit Set (130°F & 150°F)
All
R0457200
74
In/Out Cover Panel, Top
All
R0482500
25
High-Limit Switch, 130°F
All
R0457300
26
High-Limit Switch, 150°F
All
R0023000
75
In/Out Cover Panel, Bottom
All
R0482600
27
Ignition Control
All
R0491300
76
Side Panel, Left
All
R0482700
28
Fusible Link Assembly
All
R0012200
77
Return Side Cover, Top
All
R0482800
29
Fusible Link Bracket
All
R0337200
78
Return Side Cover, Bottom
All
R0482900
30*
Wire Harnesses, Set
All
R0470000
79
Heat Shield
125-400
R0483101-05
80
Heat Deflector Guard, Front
125-400
R0483201-05
81
Rear Partition
125-400
R0483401-05
82
Heat Deflector Guard, Rear
125-400
R0483501-05
83
Controller Mounting Panel
125-400
R0483901-05
84
Weather Stripping
All
R0491000
85
Grommet, 7/8"
All
R0492800
Vent System
31
Top Enclosure
125-400
R0470301-05
32
Vent Cover
125-400
R0470401-05
33
Rainshield (Partition)
125-400
R0478201-05
34
Flue Collector Assembly
125-400
R0470501-05
35
Outdoor Vent Cap (U.S.)
125-400
R0491601-05
36
Indoor Drafthood (U.S.)
125-400
R0499601-05
37
Adapter Plate
125-400
R0478301-05
38*
Clip
All
R0500200
Water System-Polymer
39
Inlet/Outlet Header Assy, Polymer
125-400
R0470800
40
Return Header Assy, Polymer
All
R0454200
41*
Header Hardware Set, Polymer
All
R0454500
42
Heat Exchanger Assembly, Complete, Copper 125-400
42
Heat Exchanger Assembly, Complete, CuNi
125-400
R0500701-05
43
Heat Exchanger Drain Plugs (2), Polymer
All
R0446000
R0470601-05
Firebox Components
Jacket Components
Optional Components
86*
Noncombustible Base
125-400
R0471001-05
87*
Press Relief Valve Kit, 75 PSI, Bronze
All
R0040400
88*
Press Relief Valve Kit, 75 PSI, Polymer
All
R0336100
89*
Touch-up Spray Paint, Pewter
All
R0335800
90*
Temp Rise Measurement Kit
All
R0336000
NOTES:
1. All hardware sets contain all pieces necessary for assembly, including gaskets.
2. Gaskets and hardware are included in all kits that involve the removal of a
gasket as part of the procedure to replace a part.
* PARTS NOT SHOWN ON KEY VIEW
** MANIFOLD KIT INCLUDES INSTALLED ORIFICES BUT DOES NOT
INCLUDE GAS VALVE
Page 45
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
11.3
General Exploded View
32
35
36
31
37
33
34
78
77
76
72
40
20
22
42
71
66
39
66
70
79
66
29
28
81
74
67
69
82
4
80
75
83
85
1
12
73
84
68
Page 46
11.4
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
Detailed Exploded View
27
14
11
13
7
10
3
2
67
5
8
43
6
63,64
45
61
46
17
44
43
18
15,16
47
24
19
25
26
23
Page 47
Legacy Model LRZE Pool/Spa Heater Installation and Operation Manual
48
60
50
57
55
20
58
61
63,64
49
56
53
61
25
52
59
51
50
23
26 15,16
54
59
LIMITED WARRANTY
Thank you for purchasing Jandy pool and spa products. Zodiac Pool Systems, Inc. warrants all parts to be
free from manufacturing defects in materials and workmanship for a period of one (1) year from the date of
retail purchase, with the following exceptions:
®
• AquaLink® RS units installed with Jandy® Surge Protection Kits will be covered for two (2) years.
• Never Lube® valves are warranted for the life of the pool and/or spa on which they were originally installed.
• AquaPure® Electronic Chlorine Generator Electrolytic Cells carry a five (5) year limited warranty on a prorated basis.
• Heat pumps are covered for two (2) years. There is a lifetime warranty on titanium tubing.
• The heat pump compressor is covered for five (5) years.
• The DuoClear® Electrolytic Cells carry a three (3) year limited warranty on a prorated basis.
• The DuoClear® Vessels carry a three (3) year limited warranty.
This warranty is limited to the first retail purchaser, is not transferable, and does not apply to products that
have been moved from their original installation sites. The liability of Zodiac Pool Systems, Inc. shall not
exceed the repair or replacement of defective parts and does not include any costs for labor to remove
and reinstall the defective part, transportation to or from the factory, or any other materials required to make
the repair. Refrigerant or other expendables are not covered by the warranty. This warranty does not cover
failures or malfunctions resulting from the following:
1. Failure to properly install, operate, or maintain the product(s) in accordance with our published Installation,
Operation, and Maintenance Manuals, which are provided with the product(s).
2. The workmanship of any installer of the product(s).
3. Not maintaining a proper chemical balance in your pool and/or spa [pH levels between 7.2 and 7.8, with
ideal ranges being between 7.4 and 7.6, Total Alkalinity (TA) between 80 to 120 ppm,
Total Dissolved Solids (TDS) less than 2000, not including salt ppm].
4. Abuse, alteration, accident, fire, flood, lightning, rodents, insects, negligence, or acts of God.
5. Scaling, freezing, or other conditions causing inadequate water circulation.
6. Operating the product(s) at water flow rates outside the published minimum and maximum specifications.
7. Use of non-factory authorized parts or accessories in conjunction with the product(s).
8. Chemical contamination of combustion air or improper use of sanitizing chemicals, such as introducing
sanitizing chemicals upstream of the heater and cleaner hose or through the skimmer.
9. Overheating; incorrect wire runs; improper electrical supply; collateral damage caused by failure of O-rings,
DE grids, or cartridge elements; or damage caused by running the pump with insufficient quantities of water.
LIMITATION OF LIABILITY:
This is the only warranty given by Zodiac Pool Systems, Inc. No one is authorized to make any other warranties
on behalf of Zodiac Pool Systems, Inc. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF FITNESS
FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. ZODIAC POOL SYSTEMS, INC. EXPRESSLY
DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, INDIRECT, OR
PUNITIVE DAMAGES FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY. This warranty
gives you specific legal rights. You may also have other rights that vary by state or province.
H0299500B
WARRANTY CLAIMS:
For prompt warranty consideration, contact your dealer and provide the following information: proof of purchase,
model number, serial number, and date of installation. The installer will contact the factory to obtain instructions
regarding the claim and to determine the location of the nearest designated service center. If the dealer is not
available, you can locate a service center in your area by visiting www.jandy.com or by calling our technical
support department at 1.800.822.7933 in the United States or 1.888.647.4004 in Canada. All returned parts must
have a Returned Material Authorization number to be evaluated under the terms of this warranty.
6000 Condor Drive, Moorpark, CA, USA 93021
•
Zodiac Pool Systems, Inc.
800.822.7933 FAX 877.827.1403
Litho in U.S.A. © 2009 Zodiac Pool Systems, Inc. 0905
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising