WARNING Installation and Operation Manual
®
®
WARNING
FOR YOUR SAFETY - This product must be installed and serviced by a contractor who
is licensed and qualified in pool equipment by the jurisdiction in which the product will
be installed where such state or local requirements exists. In the event no such state or
local requirement exists, the installer or maintainer must be a professional with sufficient
experience in pool equipment installation and maintenance so that all of the instructions
in this manual can be followed exactly. Before installing this product, read and follow all
warning notices and instructions that accompany this product. Failure to follow warning notices and instructions may result in property damage, personal injury, or death.
Improper installation and/or operation can create carbon monoxide gas and flue gases
which can cause serious injury, property damage, or death. For indoor installations, as
an additional measure of safety, Zodiac Pool Systems, Inc. strongly recommends installation of suitable Carbon Monoxide detectors in the vicinity of this appliance and in any
adjacent occupied spaces. Improper installation and/or operation will void the warranty.
Installation and
Operation Manual
Legacy™
Pool and Spa Heater
Model WLRZ Electronic
Natural Gas or LP Gas
WARNING
Read this manual in its entirety. If these instructions are not followed exactly, a
fire or explosion may result, causing property damage, personal injury, or death.
This gas appliance must be installed in compliance with all applicable installation
requirements such as the Standard for Gas Installations (AS 5601). Additionally,
all requirements of the local authority — local gas fitting regulations, municipal
building codes, electrical wiring regulations, and any other relevant statutory
regulations must also be adhered to.
H0338200 Rev E
This heater is certified as complying with the requirements of the Australian
Standard for Gas Pool Heaters (AS 4560) for use only as a swimming pool or spa
heater. The heater must not be used for any other purpose and must be installed
and serviced by a qualified professional. The heater must be operated strictly
in accordance with the user's instructions and applicable laws. If the heater is
installed in a room, adequate air supply and ventilation must be provided and
maintained.
Do not store or use gasoline (petrol) or other flammable vapors and liquids in the
vicinity of this or any other appliance.
DO NOT PLACE ARTICLES ON OR AGAINST THIS APPLIANCE.
DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN
OPERATION.
Legacy™ Model WLRZ 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..........................................6
1.6 Materials Installer Must Provide......................... 6
1.6.1 Materials for All Applications....................... 6
1.6.2 Materials for Special Applications............... 7
1.7 Specifications.....................................................7
1.7.1 General Specifications................................ 7
1.7.2 Performance Specifications........................ 7
1.7.3 Dimensions.................................................7
Section 2. Installation Instructions.............. 7
2.1 Introduction........................................................7
2.2. Statutory Information.........................................8
2.3 General Installation Requirements.................... 9
2.4 Field Assembly .................................................9
2.5 Location Requirements...................................... 9
2.5.1 Introduction.................................................9
2.5.2 Clearances................................................10
2.5.3 Flooring.....................................................10
2.5.4 Outdoor Installation................................... 10
2.5.5 Indoor Installation...................................... 11
Section 3. Venting........................................ 11
3.1 Combustion Air Supply.................................... 11
3.2 Flue System (Indoor).......................................12
3.3 Vent Pipe Sizing and General Installation ...... 12
3.3.1 Outdoor Installations................................. 12
3.3.2 Indoor Installations ................................... 12
3.3.3 Inspection and Replacement of Existing
Vent System with New Components ........ 13
Section 4. Gas Connections....................... 13
4.1
4.2
4.3
Gas Supply and Piping....................................13
Manifold Pressure............................................14
Special Precautions for LPG............................ 14
Section 5. Water Connections.................... 14
5.1
5.2
5.3
5.4
5.5
5.6
Water Piping....................................................14
Hydraulic Head Loss........................................14
Check Valve Installation................................... 15
Automatic Flow Control Valve.......................... 15
Reversible Water Connections........................ 16
Connections at Heater.....................................18
5.7
5.8
Pressure Relief Valve......................................18
Auxiliary Components, Chlorinators, Ozone
Generators, and Sanitizing Chemicals............ 19
Section 6. Electrical..................................... 19
6.1 General Information.........................................19
6.2 Main Power......................................................19
6.3 Earth Bonding..................................................20
6.4 Optional Remote Controls............................... 20
6.4.1 Connection to a Remote Pool-Off-Spa
Selector (3-Wire Connection).................... 21
6.4.1.1 Install the Remote Pool-Off-Spa
Selector...............................................21
6.4.1.2 Configure the Control Panel............... 21
6.4.2 Connection to an AquaLink® RS Control
System or Remote TSTAT (2-Wire
Connection)...............................................21
6.4.2.1 Install the Remote TSTAT................... 21
6.4.2.2 Configure the Control Panel............... 21
6.4.3 Connection to a Secondary
User Interface...........................................22
6.5 Functional Test.................................................22
Section 7. Operating Instructions.............. 22
7.1 Normal Operation............................................22
7.2 Start-Up...........................................................22
7.3 Operating the Controller.................................. 23
7.3.1 Off Mode...................................................23
7.3.2 Pool Mode - (Normal Heat)....................... 23
7.3.3 Spa Mode - (Normal Heat)........................ 23
7.4 User Setup Options.........................................23
7.4.1 Language Setup........................................23
7.4.2 Temperature Scale Setup......................... 24
7.4.3 Spa Timer Setup.......................................24
7.4.4 Display Light Setup................................... 24
7.5 Set Point Lockout.............................................24
7.6 Power Supply Interruption............................... 24
7.7 Lighting and Shutdown Procedures................. 24
7.7.1 Lighting the Heater.................................... 24
7.7.2 Shutdown..................................................26
Section 8. Maintenance............................... 26
8.1 Water Chemistry..............................................26
8.2 Seasonal Care.................................................26
8.2.1 Spring and Fall Operation......................... 26
8.2.2 Winterizing................................................26
8.2.3 Spring Start-up..........................................27
8.3 Inspection and Service....................................27
8.3.1 Owner Inspection......................................27
8.3.2 Professional Inspection............................. 28
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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Table of Contents (Continued)
Section 9. Troubleshooting......................... 28
9.1
9.2
General Heater Troubleshooting...................... 28
Service Codes.................................................28
Section 10. Professional Maintenance and
Service........................................ 31
10.1 General Information.........................................31
10.2 Natural-Draft Combustion System................... 31
10.3 Heater Components and Their Operation........ 31
10.4 Electrical Troubleshooting................................ 32
10.4.1 Electrical Power Supply.............................. 32
10.4.3 Control Circuit Troubleshooting................. 32
10.4.3.1 Transformer........................................32
10.4.3.2 Fuse....................................................33
10.4.3.3 Water Pressure Switch....................... 33
10.4.3.4 Roll-out Switch (Fusible Link)............. 33
10.4.3.5 Temperature Limit Switches Circuit.... 33
10.4.3.6 Gas Valve Voltage..............................34
10.4.3.7 Igniter/Ignition Control Circuit............. 34
10.5 Adjusting the Water Pressure Switch............... 35
10.6 Temperature Rise............................................35
Section 11. Replacement Parts.................... 37
11.1
11.2
11.3
11.4
Ordering Information........................................37
Parts List..........................................................39
General Exploded View................................... 40
Detailed Exploded View...................................41
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 5
®
Section 1. General Information
1.1
NOTE “Fresh water swimming pools and spas”
include systems that utilize saltwater chlorine
generator units, such as the Zodiac TRi
Chlorine Generator. Please ensure that the
salt content of the pool/spa does not exceed
4500 ppm and water flow rate is within
110-470 lpm.
3.
Pregnant women take note! Soaking in water
above 38.5°C (102°F) can cause fetal damage
during the first three (3) 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 38°C (100°F)
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 1°C (1°F).
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.
This appliance is not intended for use by persons
(including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
8.
Prolonged immersion in hot water can induce
hyperthermia.
Consumer Information and Safety
The Legacy Model WLRZ 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
Elevated water temperature can be hazardous.
Consult heater operation and installation instructions for water temperature guidelines before setting
temperature.
1.
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.
Introduction
This manual provides installation and operation
instructions for the Legacy Model WLRZ electronic
pool and spa heaters. Read these installation and
operation instructions completely before proceeding
with the installation. Consult the Zodiac Pool Systems,
Inc. ("Zodiac") factory, or local factory representative,
with any questions regarding this equipment.
The Legacy Model WLRZ electronic heater gets
electrical power from an external 220-240VAC, 50
Hz source and provides a dual electronic thermostat
control system for pool/spa combinations or preheat
convenience.
The Legacy Model WLRZ 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 21°C (70°F). Do not use it as a
heating boiler or general service water heater or to
heat salt water. Consult your dealer for the appropriate
Zodiac products for these applications.
1.2
2.
Spa or hot tub water temperature should never
exceed 40°C (104°F). Thirty-eight degrees
celsius (38°C [100°F]) is considered safe for a
healthy adult. Special caution is recommended
for young children.
Hyperthermia occurs when the internal body
temperature reaches a level several degrees above the
normal body temperature of 37°C (98.6°F). 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
•
Failure to perceive heat
•
Failure to recognize need to leave spa
•
Physical inability to leave spa
•
Fetal damage in pregnant women
•
Unconsciousness resulting in a danger of
drowning
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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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.
As a general pool safety practice, Zodiac recommends a maximum water temperature of 25°C
(78°F). Use an accurate pool thermometer. A
difference of 2°C (4°F) , between 26°C and 28°C
(78°F and 82°F), 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.
6.
If the pool is only going to be used on weekends,
reduce the heater temperature control setting by
4 to 5°C (8 or 10°F) during the week. Reset it to
the 25°C (78°F) level a day or so before you plan
to use the pool.
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.
1.3
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.
NOTE Keep this manual in a safe place for future
reference when inspecting or servicing the heater.
1.4
Codes and Standards
1.5
Technical Assistance
1.6
Materials Installer Must Provide
The Legacy Model WLRZ electronic heater has
been tested and certified by IAPMO R&T OCEANA
as complying with the applicable requirements of the
Australian Standard for Gas Pool Heaters (AS 4560).
All Zodiac heaters must be installed in
accordance with the local building and installation
codes as per the utility or authorities having
jurisdiction.
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.
Consult your local Zodiac distributor with any
questions or problems involving the specifications,
installation, and operation of your Zodiac equipment.
1.6.1 Materials for All Applications
The following items are needed and are to be
supplied by the installer for all Legacy Model WLRZ
electronic heater installations:
1.
The correct size gas pipe to supply gas from the
meter to the heater. See Section 4.1.
2.
A manually operated gas cock to be installed in
the gas line outside of the heater jacket.
3.
Plumbing items needed to provide a sediment
trap (drip leg) in the gas line between the manual
gas cock and the heater. See Section 4.1.
4.
A 220-240VAC, 50 Hz power supply. A junction
box is not needed at the heater; connections are
made inside of the heater jacket.
Warranty
The Legacy Model WLRZ electronic heater
is sold with a limited factory warranty. Details are
specified in warranty included with this appliance.
Make all warranty claims to an authorized
Zodiac representative or directly to the factory. Claims
must include the heater serial number and model
(this information can be found on the rating plate),
installation date, and name of the installer. Shipping
costs are not included in the warranty coverage.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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2.
1.6.2 Materials for Special
Applications
1.7.2 Performance Specifications
In addition to the items listed above, the
following items are needed for special applications:
1.
The Legacy Model WLRZ electronic heater
performance specifications are shown in Table 3.
A factory authorized draft hood and any vent
pipe needed for indoor installations. See Section
3.2. Draft hoods are available from any Zodiac
distributor.
2.
1.7.3 Dimensions
See Figure 1 for a diagram showing the heater's
exterior dimensions and dimensions to critical
connections on the heater.
Primer and cement suitable for cementing PVC
pipe to the Zodiac CPVC unions supplied with
the heater.
3.
Section 2. Installation Instructions
A noncombustible platform for installation
on combustible surfaces. See Section 2.5.3.
Noncombustible bases are available from your
Zodiac distributor.
4.
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 strongly recommends
installation of suitable Carbon Monoxide detectors
in the vicinity of this appliance and in any adjacent
occupied spaces. The heater may only be installed
in a room which complies with the appropriate
ventilation requirements and which is separate from
living areas.
A factory approved vent cap for all outdoor
installations where wind conditions may cause
downdrafting. Approved vent caps are available
from your Zodiac distributor. See Section 11.2,
"Parts List", of this manual for the correct part
number.
1.7
Minimum Clearance From Combustible Material:
See Table 4.
Specifications
1.7.1 General Specifications
1. Installation Location:
Certified for use:
Natural Gas: Indoor and Outdoor
LPG:
Indoor and Outdoor
See Section 4.3
Refer to Table 1.
Table 1. General Specifications
WLRZ
125
175
250
325
400
Water Capacity (L)
0,81
0,95
1,16
1,35
1,57
Minimum Water Flow (l/min)
75,7
75,7
94,6
113,6
113,6
Maximum Static Head (bar)
5,1
5,1
5,1
5,1
5,1
Maximum Outlet Temp (C)
52
52
52
52
52
Dry Weight (kg)
60
67
78
88
100
Gas Connection
3/4 in Bsp
(Rc 3/4)
3/4 in Bsp
(Rc 3/4)
3/4 in Bsp
(Rc 3/4)
3/4 in Bsp
(Rc 3/4)
3/4 in Bsp
(Rc 3/4)
Water Inlet Connection
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
Water Outlet Connection
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
50 mm unthreaded
PVC or CPVC
220-240VAC, 50 Hz,
5 Amps Max
220-240VAC, 50 Hz,
5 Amps Max
220-240VAC, 50 Hz,
5 Amps Max
220-240VAC, 50 Hz,
5 Amps Max
220-240VAC, 50 Hz,
5 Amps Max
Electrical Supply
Inlet Pressure (kPa):
Natural Gas
LPG
IP Rating
Vent Type:
Outdoor Flueless
Outdoor with Vent Cap
Indoor Natural Draft
1,13 minimum, 2,5 maximum
2,5 minimum, 3,5 maximum
IPX4
Not to be installed with a balance flue.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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Install the Legacy Model WLRZ 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
2.2. Statutory Information
It is required that all gas appliances are to be
installed only by competent persons who have been
properly authorized by the local jurisdiction in which
the appliance is being installed. This gas appliance
must be installed in compliance with all applicable
installation requirements such as the Standard for
Gas Installations (AS 5601/AG 601). Additionally,
all requirements of the local authority – local gas
fitting regulations, municipal building codes, electrical
wiring regulations, and any other relevant statutory
regulations must also be adhered to.
The Legacy heater, as supplied, has been tested
and certified by IAPMO R&T OCEANA as complying
with the applicable requirements of the Australian
Standard for Gas Pool Heaters (AS 4560) for use
with natural and LPG gases. Legacy heaters are only
permitted to be installed in the open air or in a room
which is separated from living areas and provided with
appropriate ventilation directly to the outside.
This manual provides the information needed to
meet these requirements. Review all application and
installation procedures completely before continuing
the installation.
H
A
194 mm
406 mm
1041 mm
264 mm
127 mm
1000 mm
203 mm
724 mm
333 mm
Outdoor Flueless Heater Configuration
95 mm
Model
Indoor Open Flue Configuration with Draft Hood
Outdoor Flue Configuration with Vent Cap
Venting Dimensions
Heater Width
Dim "A"
Vent Diameter
Outdoor
Dimension "H"
Indoor
Dimension "H"
mm
mm
mm
mm
125
384
125
441
413
175
460
150
457
613
250
578
175
464
641
325
683
200
479
673
400
822
230
546
699
Figure 1. General Configuration
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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Table 2. WLRZ Performance Specifications
WLRZ Size
Model Number
125
175
250
325
400
Nat.
Gas
LPG
Nat.
Gas
LPG
Nat.
Gas
LPG
Nat.
Gas
LPG
Nat.
Gas
LPG
Heat Input Gross (mJ/hr)
132
132
185
185
264
264
343
343
422
422
Heat Output (kW)
28,4
28,4
40,9
40,9
59,2
59,2
76,3
76,3
90,9
90,9
Burner Pressure (kPa)
0,75
2,20
0,75
2,20
0,75
2,20
0,75
2,20
0,70
2,20
Gas Rate (m3/h) Nat. Gas
3,5
--
4,9
--
7
--
9,1
--
11,2
--
--
1,05
--
1,48
--
2,3
--
2,99
--
3,47
32,1
--
44,9
--
64,1
--
83,9
--
102,8
--
Gas Type
Gas Rate (m /h) LP Gas
3
Flue Gas Volume
4.5% CO2, 120C (l/sec)
Flue Gas Volume
4.5% CO2, 120C (l/sec)
G30
Injector Diameter (mm and
marking)
--
32,3
--
45,3
--
70,3
--
91,4
--
106,4
(2,46)
Marked
41
(1,51)
Marked
53
(2,46)
Marked
41
(1,51)
Marked
53
(2,46)
Marked
41
(1,51)
Marked
53
(2,46)
Marked
41
(1,51)
Marked
53
(2,49)
Marked
40
(1,51)
Marked
53
WARNING
The Legacy heater is certified to applicable Australian requirements for use only as a swimming pool
or spa heater. The Legacy heater must not be used
for any other purpose and must be installed and
serviced by a qualified professional. The Legacy
heater must be operated strictly in accordance with
the manufacturer's instructions. If the Legacy heater
is installed in a room, adequate air supply and
ventilation must be provided and maintained. Never
store any materials within the area of the heater or
ventilation openings.
It is important that no external control devices
(e.g., flue dampers, economizers, etc.) be directly
connected to the Legacy heater unless covered
by these installation and servicing instructions or
otherwise recommended in writing by Zodiac. If in
doubt please ask. Any direct connection of a control
device not approved by Zodiac, could invalidate the
regulatory certification status, the normal Legacy
heater warranty, and could also violate applicable gas
safety regulations.
2.3 General Installation Requirements
It is required that all gas appliances are to be
installed only by competent persons who have been
properly authorized by the local jurisdiction in which
the appliance is being installed. This Gas appliance
must be installed in compliance with all applicable
installation requirements such as the Standard for Gas
Installations (AS 5601 / AG 601). Additionally, all
requirements of the local authority – local gas fitting
regulations, municipal building codes, electrical
wiring regulations, and any other relevant statutory
regulations must also be adhered to.
2.4
Field Assembly
2.5
Location Requirements
The Legacy Model WLRZ electronic heater is
shipped from the factory with the top assembly in
the low-profile configuration for outdoor installation.
The Legacy Model WLRZ electronic heater is design
certified for indoor installation when equipped
with a draft hood, which must be installed without
modification.
Check the rating plate on the heater or the Parts
List (Section 11) of this manual for the correct Zodiac
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.
2.5.1 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 cannot
be responsible for such water loss or flooding or
resulting damage.
The Legacy Model WLRZ electronic heater may
be installed indoors or outdoors as outlined in later
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
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.
2.5.2 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 3.
At least 450 mm 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
devices must have a minimum 450 mm clearance
above the floor.
This heater must be installed at least 3,5 m 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.
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, 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 Zodiac noncombustible
base plate, the heater may be placed on a combustible
surface when there is a platform under the heater made
of hollow masonry no less than 100 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 150 mm in all directions. The masonry must be
laid with ends unsealed, and joints matched to provide
free circulation of air from side to side through the
masonry, see Figure 2. If the heater is installed in a
carpeted alcove, the entire floor of the alcove must be
covered by a noncombustible panel.
2.5.4 Outdoor Installation
The Legacy Model WLRZ 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
2.5.3 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,
Sheet Metal Min.
Thickness 24 Ga
Table 3. Minimum Heater Clearances
From Combustible Surfaces
SIDE OF HEATER
MINIMUM CLEARANCE
BLANK SIDE
200
REAR
150
Millimeters
PIPING SIDE
350
TOP
1100
FRONT
450
Note: Clearances listed in Table 3 are manufacturer's tested
values. These are given as minimum values. Where local
codes apply, and values are different than those listed in
Table 3, use the greater value to ensure safe operation.
Hollow Concrete Block
Platform
153mm
153mm
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 150mm
beyond the heater jacket on all sides.
Figure 2. Noncombustible Platform
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 11
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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). The vent system shall terminate at least
2 m below, 2 m horizontally from, any door, operable
window, or gravity inlet into any building. See
Figure 3.
The top surface of the heater must be at least
0.91 m above any forced air inlet, or intake ducts
located within 3.0 m horizontally.
If the heater is installed under an overhang, there
must be a minimum clearance of 1.5 m above the top
of the heater and the structure should not overhang the
heater more than 0.30 m. The area under the overhang
must be open on three (3) sides. This prevents
combustion gases from being diverted into living
areas through doors, windows, or gravity inlets.
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 0.91 m from vertical surfaces (e.g., nearby
buildings and walls).
2.5.5 Indoor Installation
2m
Figure 3.
Outdoor Heater Installation
These codes, standards and Zodiac, 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.
3.1
Combustion Air Supply
WARNING
To avoid risk of carbon monoxide gas which can
result in serious injury, property damage, or death,
this heater is NOT suitable for use with a balanced
flue. Additionally, only use vent piping which is
certified/approved for the specific application.
The heater location must provide sufficient air
supply for proper combustion and ventilation of the
surrounding area.
In general, the room in which a heater is installed
should be provided with two (2) permanent air supply
openings; one (1) within 300 mm of the ceiling,
the other within 300 mm of the floor. All indoor
installations must have uninterrupted openings to
outside air for combustion, ventilation, and dilution
of flue gases from inside the building, see Figure
4 and Table 4. Zodiac does not recommend indoor
installations that do not provide combustion air from
outside the building.
Minimum free ventilation area for each opening
shall be calculated using the following formula:
Table 4. Free Ventilation Area
The Legacy heater can be installed indoors
using the draft diverter available from Zodiac, and
a flue system complying with the national and local
applicable standards in addition to the Building
Regulations. See Section 2.
2m
Section 3. Venting
2m
A= 3 x T
A= the minimum free ventilation area (cm^2)
T= the total gas consumption of all appliances (MJ/h)
It is recommended that if the ventilation openings
are louvered or screened that openings size are
increased by 50 percent.
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 4 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.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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3.1 m
VENT TERMINATED
AT LEAST 600 mm
ABOVE ANY OBJECT
WITHIN 3.1 m
Notes:
1. Use approved
roof jack.
LISTED FLUE TERMINAL
20 mm
minimum pitch
per meter
of horizontal
pipe
AT LEAST
600 mm OF
VERTICAL
FLUE ABOVE
THE DRAFT
HOOD
BENDS
SHOULD NOT
EXCEED 45°
DRAFT HOOD
4)
NON-COMBUSTIBLE
BASE
Figure 4.
3.2
Indoor Installation Venting or Outdoor Shelter Venting
Flue System (Indoor)
WARNING
To avoid risk of carbon monoxide gas which can
result in serious injury, property damage, or death,
this heater is not intended to be installed with,
and has not been qualified for installation with a
side-wall venting system.
This heater is a natural draft appliance that must
be installed with a draft diverter. This heater is not
suitable for use with a balanced flue. Connect the draft
diverter to a flue system of at least the same diameter,
and end at least 0.6 meters above the highest point
of the roof or other object that is within 3.1 m of the
vent. Install a certified terminal which allows a full
equivalent opening for flue products, see Figure 4.
There must be at least 600 mm of vertical flue above
the draft hood. Bends in the flue should not exceed 45°
to the vertical.
To make sure the heater operates safely
and satisfactorily, the flue system must be able to
completely remove combustion products at all times.
The number of bends and lengths of horizontal flue
pipe used should be kept to a minimum in order to
reduce gas flow resistance.
Compliance with all national and local applicable
installation codes and regulations should be strictly
observed.
The flue design should avoid the formation of
excessive quantities of condensate. For this reason, it
is recommended that all flues be insulated and lined.
For brick or similar structures, a stainless steel rigid
or flexible flue liner (Grade 304/316) may be used in
conjunction with a 50 mm (minimum) thick layer or
vermiculite or perlite granules between the liner and
the inner skin of the chimney body.
Liners should be sealed at both top and bottom.
Drainage points should be provided at the bottom of
all vertical flue sections. Drain pipes should be:
1.
2.
No less than 25 mm inside diameter.
Made from acid condensate resistant material
(e.g., stainless steel).
Positioned so that pipe runs and discharge points
are not subject to the effects of frost and flue
gases cannot leak into the boiler room.
3.
3.3
Vent Pipe Sizing and General
Installation
3.3.1 Outdoor Installations
For outdoor installations, exhaust venting
considerations will determine the placement of
the heater, see Section 2.5.4. If the heater cannot
be placed so as to meet the requirements stated in
Section 2.5.4, 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 Zodiac distributor.
3.3.2 Indoor Installations WARNING
Vent pipe diameter must be as required by applicable local gas appliance installation codes such
as AS 5601 / AG 601. Undersized pipe can result in
inadequate venting and oversize pipe can result in
vent condensation. In either case the result can be
the release of combustion products to the indoors.
This can cause serious injury or death by carbon
monoxide poisoning or asphyxiation.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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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.
Avoid long horizontal runs of the vent pipe, and
90° elbows, reductions and restrictions. Horizontal
runs should have at least a 20 mm rise 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
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 0.6 m above the highest point of the
roof or other object that is within 3.1 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 4. The top of the vent cap must be
at least 1.5 m in vertical height above the draft hood
outlet.
Type “B” double wall or equivalent vent pipe is
recommended.
IMPORTANT NOTE: Do not use sheet metal screws at
the snap lock joints.
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 national
and local installation codes for more information on
multiple venting.
is in good condition and continues to be appropriate
for the Legacy Model WLRZ 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
WARNING
The Legacy Model WLRZ pool and spa heaters are
built at the factory for use with ONLY ONE type of
gas - either Natural or LPG. DO NOT ATTEMPT TO
CONVERT THIS HEATER FOR USE WITH ANY
OTHER TYPE OF FUEL WITHOUT THE PROPER
R-KIT AVAILABLE FROM ZODIAC.
CAUTION
Permanent damage to the gas valve will occur if the
following procedures are not followed.
1.
2.
3.
4.
Gas piping installation must be in accordance
with all applicable local rules and regulations
such as Gas Installations (AS 5601 / AG 601).
Use rigid piping only for connection to this
heater.
Check the gas supply to be sure that it is the same
as the gas indicated on the heater's rating plate.
If there is any doubt regarding the capacity of
any existing service pipes or the size required
for new service pipes then the advice of the
gas supplier should be requested. Installation
pipework should be fitted and tested for gas
soundness. Zodiac recommends the gas inlet pipe
sizes listed in Table 5.
Use the figures in Table 5 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. Pipe Size Requirements
Distance from Gas Meter
Heater
Size
0-15 m
15-30 m
30-60 m
mm
mm
mm
125
20
25
25
175
25
25
32
250
25
32
32
325
32
32
40
400
32
40
40
3.3.3 Inspection and Replacement of
Existing Vent System with New
Components If the Legacy Model WLRZ 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
Gas Supply and Piping
Review the following general instructions before
continuing the installation.
5.
Before operating the heater, test for gas
soundness. Do not use a naked flame.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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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 2. Also check the pressure with
the heater off.
Gas Cock
4.3
Manifold Pressure
Test Point
Figure 5.
6.
4.2
Fitting a Gas Service Cock
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 1.
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 inlet
pressures to the heater, when it is operating, are listed
in Table 1.
CAUTION
Manifold gas pressure for the Legacy Model WLRZ
should be set at the values listed in Table 2.
The manifold pressure may be checked by
connecting a manometer to the pressure port on the
manifold. Refer to Figure 5. The pressure will be zero
when the heater is not running. When the heater is
operating the manifold gas pressure should be set to
the values listed in Table 2.
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 test point 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
Special Precautions for LPG
LPG 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 LPG. Locate heaters
a safe distance from LPG cylinders and filling
equipment. Consult local codes and fire protection
authorities about specific restrictions in your area.
Section 5. Water Connections
5.1
Water Piping
5.2
Hydraulic Head Loss
Figure 6 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 recommends the installation of a pressure relief
valve on the heater. See Section 5.7.
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 1.8 m below the pool
water surface and no more than 4.5 m 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 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 consult your local Zodiac dealer.
To verify that the minimum flows required for the
heater are met, a hydraulic head loss curve is shown
in Figure 7. This should be checked when installing
this heater into a new or existing piping system. This
should also be consulted when installing a new pump.
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 15
®
AQUAPURE
MANUAL BY-PASS DETAIL
MANUAL BY-PASS IS USED
WHEN FILTRATION RATE
EXCEEDS 475 LPM
Figure 6.
Typical Piping Installation
LRZ Pressure Drop vs Flow
5
4.5
LRZ400
Pressure Drop (m H2O)
4
LRZ325
LRZ175
3.5
LRZ250
LRZ125
3
2.5
2
1.5
1
0.5
0
0
100
200
300
400
500
Water Flow (LPM)
Figure 7.
5.3
Hydraulic Head Loss Curve
Check Valve Installation
WARNING
A check valve can interfere with the proper operation
of certain Suction Vacuum Release System (SVRS)
products. To avoid possible entrapment hazard,
serious injury, or death, make sure to review the
operation/owners manual of your particular SVRS
product before installing the check valve.
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 5.8. 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.
5.4
Automatic Flow Control Valve
The inlet/outlet header of the Legacy Model
WLRZ electronic heater comes equipped with an
automatic flow control valve. The automatic flow
control valve maintains the proper flow through the
heater at rates up to approximately 475 lpm. If the
filter system flow rate is higher than approximately
475 lpm, install a manual bypass valve, as shown in
Figure 6, 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.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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5.5
Reversible Water Connections
IMPORTANT NOTE Reversing the header requires
a longer syphon tube, order part number
R0483601.
The Legacy Model WLRZ 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. For an existing installation, drain the heater by
removing the two (2) drain plugs on the inlet/
outlet header and the drain plug on the return
header.
2. Remove the heater front panel (door).
3. Remove the I/O header side cover plates, top and
bottom. See Figure 10.
4. Remove the return header side cover plates, top
and bottom. See Figure 10.
5. Disconnect the blue "HiLimit" two-pin connector
from the Power Interface board on the raceway.
Clip any wire ties attached to the harness. Feed
the "HiLimit" two-pin connector and wiring back
through the way it is routed to the header so that
the harness hangs free from the header, outside of
the cabinet.
6. Disconnect the water pressure switch tubing.
7. 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.
8. 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.
Figure 8.
Water Connections as Shipped
®
NOTE: When reversal
is complete the water
temperature sensor
wires and the syphon
loop tube will exit the
inlet/outlet header at
the back of the heater
and the drain plugs are
facing down.
Figure 9.
Bypass
Assembly
Water Connections Reversed
VENT TOP
RETURN HEADER SIDE
COVER PLATES
TOP AND BOTTOM
TOP PANEL
REAR PANEL
LEFT SIDE PANEL
CONTROL PANEL
BASE
FRONT PANEL
(DOOR)
IN/OUT HEADER
SIDE COVER PLATES
TOP AND BOTTOM
RIGHT SIDE PANEL
Figure 10. Legacy Model WLRZ Panel Identification
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 17
®
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.
9.
For an existing installation, remove the coupling
nuts from the header and disconnect the water
supply from the heater.
10. Remove the 10 bolts and washers from the inlet/
outlet header and remove the header from the
tube assembly.
11. Remove the 10 bolts and washers from the return
header and remove the header from the tube
assembly.
12. 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.
WARNING
To avoid product failure which can cause property
damage, serious personal injury or death, install
the inlet/outlet header with the high limit devices
on the bottom.
13.
Place the inlet/outlet header over the bolts
and gasketed tubes on the left side of the tube
assembly. Make sure the high limit devices are on
the bottom. Refer to Figure 9. Align the bolt and
tube holes in the header with the bolts and tubes in
the header bar and slide the assembly together.
14. Thread on the 10 bolts and washers and hand
tighten.
15. 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.
16. Thread on the 10 bolts and washers and hand
tighten. See Figure 11.
17. Use a torque wrench to tighten the bolts on each
header to 5.4 Nm (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.
18. Remove the 19 mm (3/4 inch) button plug
located in the left side panel below the inlet/
outlet header and replace with the 19 mm (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 19 mm (3/4 inch)
plug in the opening where the 19 mm (3/4 inch)
wire grommet was removed.
19. 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.
20. 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.
21. Install a new longer water pressure switch
(siphon loop) tubing. The kit is available from
your Zodiac distributor. Refer to the parts list in
section 11.2.
22. 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.
23. 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.
7
8
3
4
2
1
6
5
10
9
Figure 11. Header Bolt Tightening Sequence
24. Install the return header side cover plate on the
right side of the unit.
25. Install the I/O header side cover plates, top and
bottom on the left side of the unit.
26. Replace the front panel (door).
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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5.6
Connections at Heater
The Legacy Model WLRZ electronic heater
has a header and coupling design. The couplings can
accommodate a 50 mm pipe or 65 mm pipe. The
pipe material must be PVC or CPVC. However, by
installing the appropriate pipe adapters (supplied by
the installer), any size existing pipe may be fitted to
the heater.
To connect a section of PVC or CPVC pipe
to the heater, 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, see Figure 12. 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.
5.7
3.
Open the hole by reaming it with a 9.5 mm (3/8
inch) drill bit.
4.
Open the hole again by reaming it with a 12.7
mm (1/2 inch) drill bit.
CAUTION
Initially drilling a 12.7 mm (1/2 inch) hole without
reaming may cause the bit to "grab" on the plastic.
This may cause personal injury or damage the
plastic header.
5.
Remove the brass adapter and clean the cuttings
out of the hole.
6.
Install the rubber washer at the bottom of the
hole. See Figure 14.
7.
Thread the adapter into the hole and tighten so
that it seals against the rubber washer.
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 WLRZ 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 5.1 bar. Any pressure relief valve installed
must comply with AS 1271 or an equivalent standard.
Follow these steps to install a pressure relief valve:
1.
To protect the threads while drilling, screw the
brass adapter (included with the Zodiac PRV
kit) into the blind threaded hole on the top of the
inlet/outlet header.
2.
Using the countersink in the center of the blind
hole as a guide, drill a 6.4 mm (1/4 inch) hole
through the plastic. See Figure 13.
START WITH A 1/4" BIT
THEN OPEN HOLE WITH
A 3/8" BIT THEN OPEN
HOLE WITH A 1/2" BIT
TEMPORARILY INSTALL
BRASS ADAPTER TO
PROTECT PLASTIC
THREADS
Figure 13. Drill Hole for Pressure Relief Valve
PRESSURE RELIEF
VALVE HAND
TIGHTEN ONLY
RUBBER WASHER
BRASS ADAPTER
PVC OR CPVC PIPE
O-RING
COUPLING
COUPLING
NUT
Figure 12. Piping to Heater
Figure 14. Pressure Relief Valve Installation
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 19
®
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.
11. Install the adapter on the PRV and tighten using
two (2) 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. 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.
CAUTION
In order to prevent property damage, do not overtighten. Overtightening may crack the header.
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 WLRZ electronic heater is 5.1 bar.
5.8
Auxiliary Components,
Chlorinators, Ozone Generators,
and Sanitizing Chemicals
The Legacy Model WLRZ 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 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 46 cm 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
Installation must be carried out by a competent
person (e.g. electrician). This gas appliance must
be installed in compliance with all applicable installation requirements such as the Standard for Gas
Installations (AS 5601). Additionally, all requirements
of the local authority — local gas fitting regulations,
municipal building codes, electrical wiring regulations, and any other relevant statutory regulations
must also be adhered to.
WARNING
ELECTRICAL SHOCK HAZARD. This heater
contains wiring that carries high voltage. Contact
with these wires may result in severe injury or death.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
6.1
General Information
6.2
Main Power
Wiring connections must be made exactly as
shown in the wiring diagram found on the inside of the
heater door, see Figure 15. The heater must include a
definite means of grounding. There is an earth bonding
lug on the right side of the heater, where a bond wire
must be attached.
Electrical wiring must be in accordance with
the latest edition of all applicable national and local
installation codes and regulations. The method of
connection to the electricity supply must facilitate
complete electrical isolation of the appliance.
Connection may be via a fused pole isolator with a
contact separation of at least 3 mm in all poles
The heater comes factory-wired intended for
use with 220-240 Volt, 50 Hz AC field electrical
supply.
This unit is fitted with a flexible electric cord and
3-pin plug for connection to a 220-240V 10 ampere
(A) power outlet. The power outlet must be effectively
earthed.
Page 20
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
R
24
VAC
FC+/-
IGN
240
IGNITER /
IGNITION CONTROL CIRCUIT
L1
L2
IGN
FS
W/R W/BK
GY
W
Y/BK
BK
VAL
BR
GND
BL
BL
BR
G/Y
HOT SURFACE IGNITER
W/R
W/BK
GAS VALVE
FLAME SENSE
BL
BR
BK
6
12
R
BK
5
2
11
BK
R
G/Y
FUSE
8
1
7
G/Y
220-240 VAC
HEATER
POWER
SUPPLY
BL
BL
TRANSFORMER
WATER
TEMP
SENSOR
BK
BK
BR
BL
WATER
TEMP
PUMP
BK O BL R
HIPRESS
HILIMIT
BK
LOPRESS
FUSELINK
BK BL
O GY
42°C
LIMIT
SWITCH
R
BL
Factory Wired 24V
Factory Wired 220-240V
BK - BLACK
BL - BLUE
BR - BROWN
G/Y - GREEN WITH YELLOW TRACE
GY - GRAY
O - ORANGE
R - RED
V - VIOLET
W/BK - WHITE WITH BLACK TRACE
W/R - WHITE WITH RED TRACE
Y/BK - YELLOW WITH BLACK TRACE
V
BL
52°C
LIMIT
SWITCH
TO PUMP STARTER
CONTACTS (IF USED)
REMOTE
SPA POOL COM
WATER
PRESS
BK O BL R
POWER INTERFACE
UNIVERSAL
CONTROLLER
USER INTERFACE
Y/BK
COMP/IGN
24 VAC
GAS
VALVE
USER
INTERFACE
TO COMBUSTION
AIR LOUVER STARTER
(IF USED)
FAN/LOUVER
UNIVERSAL
CONTROLLER
POWER INTERFACE
152°C
ROLL-OUT
SWITCH
(FUSIBLE LINK)
WATER PRESSURE
SWITCH
240°C
VENT TEMPERATURE
LIMIT
H0335000 Rev E
Figure 15. Legacy Model WLRZ Electronic Connections/Schematic Wiring Diagram
6.3
Earth Bonding
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 (10 mm2).
Zodiac requires that the appliance be connected
to an "earth bonding loop" that includes all electrical
equipment in the system and on the equipment pad.
Earth bonding lugs must be connected with a solid
copper wire not smaller than 8 AWG (10 mm2).
Failure to do so will void warranty.
Additionally, all metallic components of a pool
structure, including reinforcing steel, metal fittings
and above ground components be bonded together
(forming an “earth bonding grid”) with a solid copper
conductor not smaller than a 8 AWG (10 mm2).
The equipment and/or appliances associated
with the pool water circulating system, including, but
not limited to, pump motors and heaters must also be
bonded together as part of the equipotential bonding
grid. Zodiac provides a special labeled earth bonding
lug on the right side of the heater to accommodate this
requirement. Consult your local applicable installation
codes/regulations for additional requirements that may
apply.
6.4
Optional Remote Controls
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.
Electrical wiring must be in accordance with
the latest editions of all applicable national and local
installation codes and regulations.
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 21
®
6.4.1 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 16.
5.
Restore power to the heater and the pool/spa
control system.
4.
Connect the wiring from the pool/spa control
system to the heater remote control terminal. See
Figure 17.
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.
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 button and then the POOL and SPA
buttons for 5 seconds.
NOTE The display will revert back to OFF after
1 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 HILO-COM, press the MENU button to select the
remote. Press POOL or SPA to exit the Service
Setup mode.
Figure 16. Remote Pool-Off-Spa Connection (3-Wire
Connection)
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.
Figure 17. AquaLink RS or Remote TSTAT Connection
(2-Wire Connection)
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
2.
To enter the Service Setup mode, press and hold
the MENU button and then the 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 40°C (104°F).
6.4.3 Connection to a Secondary
User Interface
The Legacy Model WLRZ electronic pool/spa
heater can also be controlled remotely by installing
a second wall mountable User Interface. Please
order part number R0467500. This kit contains the
second User Interface, wall mounting backplate, and
necessary hardware.
6.5
Functional Test
After the installation is complete, the installer
must test the appliance to ensure it operates properly.
Refer to Section 7, Operating Instructions.
Section 7. Operating Instructions
7.1
Normal Operation
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.
The Legacy Model WLRZ electronic ignition 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
220-240 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 then tries the ignition two (2) more times
and finally locks out. 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.
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.
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.
CAUTION
Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to the
heater.
CAUTION
Do not attempt repairs on the gas controls or
appliance. Tampering is dangerous and voids all
warranties.
CAUTION
Keep all objects off the top of the heater. Blocking
air flow could damage the heater, and may void the
warranty.
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 clean the water
completely. This will remove any installation residue
from the water. Clean the filter at the end of this
operation before starting the heater.
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 23
®
Start the heater in accordance with the Operating
Instructions section of this manual, with particular
attention to the lighting 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 (3) attempts, see Section 9.2, "Service Codes".
To reset the Legacy Model WLRZ 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.
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
Your new Legacy Model WLRZ 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 18.
7.3.1 Off Mode
When the control panel is turned off, the screen
displays GAS HEATER is OFF pRESS Pool or
Spa.
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 26°C (80°F).
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 38°C (102°F).
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.
7.4
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
GAS HEATER IS OFF
PRESS POOL OR SPA
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.
Figure 18. Main Control Panel
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
Page 24
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
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.
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 Temperature Scale 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 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 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.
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.
7.4.4 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
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.
7.6
Power Supply Interruption
7.7
Lighting and Shutdown Procedures
In the event of a power supply interruption,
the heater will shut down. Once the power has been
restored to the appliance the unit will return to the
operating state when the power was interrupted. For
example, if the unit was firing when the power was
interrupted, the unit will return to the firing mode once
the power is reinstated. A power interruption will not
affect any of the controls programming or set points.
The controls utilize non volatile memory.
WARNING
Do not attempt to light the heater with the door off.
Doing so may cause severe bodily injury.
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 or refer to Figure 19 of
this manual.
7.7.1 Lighting the Heater
Lighting instructions are as follows:
1. Turn off all electrical power to the heater at the
main junction box.
Page 25
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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WARNING
LP Gas Models: To avoid possible injury, fire and
explosion, read and follow these precautions and
all instructions on this appliance before starting the
heater. LP (propane) gas is heavier than air and
will remain at ground level if there is a leak. Before
lighting, sniff at ground level. If you smell gas, follow
these rules:
1. DO NOT light matches. DO NOT turn electric
lights or switches on or off in area. DO NOT use
an electric fan to remove the gas from area.
2. Shut off gas at LP tank.
3. Telephone gas company and fire department
for instructions. Give your name, address and
phone number.
If your LP tank runs out of fuel, turn off gas at the
appliance. After the tank is refilled, the appliance
must be re-started according to the instructions
located on the inside of the door.
WARNING
Natural Gas Models: To avoid possible injury, fire
and explosion, read and follow these precautions
and all instructions on this heater before lighting the
pilot. If you smell gas, follow these rules:
1. DO NOT light matches. DO NOT turn electric
lights or switches on or off in area. DO NOT use
an electric fan to remove the gas from area.
2. Shut off gas at gas service cock.
3. Telephone gas company and fire department
for instructions. Give your name, address and
phone number.
DO NOT attempt repairs on the gas control or
heater. Tampering is dangerous and voids all warranties. 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.
CAUTION: Keep all objects off the top of the heater, and do
not obstruct louver vents or openings in the heater rear panel.
Blocking ventilation airflow may damage the heater and void the
warranty.
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. 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 on 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. Turn on (open) external gas supply valve to the heater.
6. Turn on the filter pump.
7.* Set thermostat to desired settings for "Pool and Spa" and switch the
controller mode from OFF to either POOL or SPA.
8. 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. Shut off the external gas supply valve to the heater.
*See manual for details of operation of thermostat control.
H0320500 Rev B
Figure 19. Lighting and Shutdown Instructions
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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2.
Turn on the filter pump.
3.
Turn on the external gas supply to the heater.
4.
Turn on electrical power to the heater.
5.
6.
Turn on the filter pump.
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
the thermostat setting (desired temperature) to be
greater than the water temperature. The igniter
lights the burner when the thermostat calls for
heat.
7. Set the time clock, if one is installed.
7.7.2 Shutdown
1.
2.
3.
4.
Complete shutdown instructions are as follows:
Set both temperature controls to their lowest
setting.
Turn off the control. Make sure the display
shows that the heater is OFF.
Turn off all electrical power to the heater at the
junction box.
Shut off the external gas supply valve to the
heater.
Section 8. Maintenance
8.1
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 6. Zodiac 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 6. Optimal Water Chemistry Ranges*
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
10 to 50 ppm
Total Dissolved Solids (TDS)
1000 to 2000 ppm (Excluding dissolved NaCl from a Salt Chlorine
Generator)
* Concentration levels taken from "Basic Pool and Spa
Technology" published by APSP (Association of Pool and Spa
Professionals).
8.2
Seasonal Care
CAUTION
Do not operate this heater outdoors at temperatures
below -7°C (20°F).
8.2.1 Spring and Fall Operation
During periods when the pool is only going to
be used occasionally, set the pool and spa control
temperatures to 21°C (70°F) 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
19.
8.2.2 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 19.
4.
Remove the drain plugs from the inlet/outlet
header as shown in Figure 20, and completely
drain the heater before the first frost.
5.
After all water has drained from the heater, check
for mineral buildup in the openings.
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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 21.
8.3
Zodiac 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.
8.2.3 Spring Start-up
WARNING
Improper installation or maintenance can cause
nausea or asphyxiation from carbon monoxide in
flue gases which could result in severe injury, or
death.
To restart the heater in the spring, have a
qualified professional technician reassemble the heater
as follows:
1.
Inspection and Service
Attach the copper tubing to the pressure switch.
See Figure 21.
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 five (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 19 of this manual.
8.3.1 Owner Inspection
Zodiac 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.
CAUTION
Do not store or use gasoline or other flammable
vapors, liquids or chemicals in the vicinity of this
or any other appliance.
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.
O-RING
DRAIN PLUG
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.
4.
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.
Figure 20. Draining the Heater
COPPER
TUBING
Figure 21. Pressure Switch Copper Tubing
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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. Roll-out switch (fusible link).
g.Control circuit fuse.
f. Vent temperature limit.
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.
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.
Inspect the internal surfaces of the heat
exchanger for scale buildup. Inspection is done
by removing one of the heat exchanger headers
and inspecting the internal surfaces of the tubes
with a flashlight. If any scale build up is found,
it will have to be removed using the descaling
procedures in Section 10.6.
7.
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.
8.
Conduct a normal operating cycle and observe
that the sequence proceeds as intended.
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.
9.
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. Twenty-five mm to 100 mm above burner
surface. See Figure 22.
10. Perform a temperature rise test in accordance
with Section 7.8.
FLAME
BURNER
Figure 22. Main Burner Flame
Section 9. Troubleshooting
9.1
General Heater Troubleshooting
9.2
Service Codes
Table 7 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.
In the event that the heater cannot be adjusted
to perform safely and correctly, please shut down
the heater. Turn off the gas supply using the manual
shutoff valve located just outside the heater jacket.
After disabling the heater contact Zodiac Pool
Systems.
The Legacy Model WLRZ electronic controller
monitors several functions of the heater. In the event
of a malfunction, the Legacy controller will display
a FAULT message. Table 8 lists the Legacy Model
WLRZ electronic Heater Service Codes along with
potential causes and remedies.
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Table 7. Legacy Model WLRZ Electronic Troubleshooting Guide
#
Symptom
Cause
Remedy
1.
No Water Flow
A. B.
C.
D.
E.
F.
No power.
Pump defective.
Incorrectly wired.
Pump relay defective.
Time clock settings not synchronized with
actual time.
Controller Defective.
F. Replace controller.*
2.
Flame roll-out on
start-up
A.
B.
C.
D.
E.
F.
G.
Blocked flue on start-up.
Igniter out of position (delayed ignition).
Blocked heat exchanger.
Refractory blanket out of place.
Altered draft hood.
Downdraft conditions.
Low gas pressure.
A.
B.
C.
D.
E.
F. G. Remove blockage.*
Correct igniter position.*
Clean and correct as necessary.*
Correct or replace blanket as necessary.*
Install factory-provided draft hood.*
Install vent cap.*
Adjust manifold or supply pressure.*
3.
Spillage at vent cap
A.
Cold chimney.
B.
C.
D.
E.
Vent pipe pitches down to chimney.
Blocked chimney.
Draft hood altered.
.
Prefabricated chimney with incorrect cap.
A.
B.
C.
D.
E.
Allow heater to operate five (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 Zodiac approved vent cap.*
Low primary air.
Incorrect manifold pressure.
4.
Flame has lazy yellow
tip
A.
B.
5.
Not enough heat
A. Inadequate gas supply.
B. Low manifold gas pressure.
C.
D.
Heater size inadequate.
Temperature rise set incorrectly.
A. B. C. D.
E. Check circuit breakers and power source.
Replace.*
Recheck wiring.*
Replace pump relay.*
Check time clock setting and current time.
A. Check for internal burner obstructions.*
B. Adjust manifold pressure according to rating plate.
Clean burner ports if dirty.*
A.
B. C.
D. Gas meter too small. Gas line from meter to heater
too small.*
Gas pressure on heater manifold, should be adjusted
to values listed in Table 2.*
Replace with heater of higher input.*
Adjust temperature rise according to Section 10.6 of
this manual.*
6.
Heater pounding or
knocking
A. Low water flow through heater.
A. Check temperature rise between inlet and outlet
heater piping. See Section 7.8 for recommended
range of temperature 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.
B.
Heater plumbed backwards.
A. B. Flue product moisture will condense at the start-up
until the pool 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. Turn knob to “on” position.
B. Cycle ignition sequence until air is out of the gas line.*
C. Replace gas valve.*
8.
Igniter lights but main
burners will not come
on
* Must be performed by a qualified professional pool technician.
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Table 8. Legacy Model WLRZ 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.
FAULTFUSELINK/FIELD
1. Roll-out switch (fusible link).
2. Vent temperature limit fault.
FAULTCHECK IGN CONTROL
1. Air flow restricted at intake or discharge.
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.
REMEDY
1.
2.
3.
This is a normal display when the pump is OFF. No
Service Required.
Clean filter or clear blockage, check position of valve
in plumbing system.
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.
2a.Identify and correct loose connections or replace switches.
Refer to qualified service personnel.
2b.Reset the manual reset high limit by pushing the red button
located on the high limit. After resetting high limit, the cause
of this over temperature condition needs to be thoroughly
investigated. Refer to qualified service personnel.
1.
2.
Identify and correct loose connections or replace
roll-out switch (fusible link). Check for and correct any down
draft condition. Refer to qualified service personnel.
Identify and correct loose connections or replace vent
temperature limit. Refer to qualified service personnel.
1.
2. 3.
4.
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.
Clean filter or identify and repair cause of pump oscillation.
Identify and repair incorrect supply pipe size or pipe line
blockage.
Identify and correct loose wiring connections, or problems
with igniter, flame sensor, gas valve, or ignition control.
Refer to qualified service personnel.
1.
2.
Inspect sensor wiring. Ensure sensor is connected into
Power Interface Board.
Replace temperature sensor. Refer to qualified service
personnel.
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Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
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Section 10. Professional Maintenance and Service
WARNING
SERVICING SAFETY
Some of the servicing procedures for the Legacy
Model WLRZ 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 WLRZ electronic heater incorporates unique design features. Incorrect service of
this heater can result in property damage, serious
personal injury or death. To avoid such hazards, the
heater must be serviced only by a qualified professional service technician.
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 Heater Components and Their
Operation
1.
2.
10.1 General Information
A qualified professional technician must service
the Legacy Model WLRZ electronic pool heater
using Zodiac'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 WLRZ electronic pool and
spa heater has an atmospheric combustion system.
This system is illustrated in Figure 23.
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 flow through the burner ports it is
ignited in the combustion chamber. Hot combustion
products then rise through a highly efficient heat
3.
4.
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.
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 (2)
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.
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.
VENT TOP
FLUE COLLECTOR
HEAT EXCHANGER
COMBUSTION CHAMBER
BURNER
BURNER TRAY SHELF
Figure 23. Atmospheric Combustion System
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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, 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 (2) limit switches prevent
excessive water temperature - one (1) at the heat
exchanger outlet and one (1) 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. Roll-Out Switch (Fusible Link) - This is a
single-use switch which detects abnormal temperature in the component compartment of the
heater. The roll-out (fusible link) 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.
9. Vent Temperature Limit - This is a single-use
switch which detects abnormal temperature in the
vent system. It is mounted to the flue collector
assembly. Excessive temperatures will cause the
switch to open. Excessive temperatures can be
caused by inadequate water flow or a damaged
heat exchanger. The vent temperature limit will
open the safety circuit which shuts off the gas
valve and shuts down the heater.
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 26 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
WLRZ electronic pool heaters are designed to operate
with supply voltage ranging from 204V to 264V at
50 Hz if connected to a nominal 220-240 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 an electric
utility company problem. Arrange for correction of
the voltage as appropriate. The controller must be
operational in order to check the control circuits of the
heater.
10.4.3 Control Circuit Troubleshooting
The heater controls are arranged in several 24V
50Hz 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 26. 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
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(common). This is test point 1 on Figure 26. 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 inch long x
1/4 inch diameter, quick acting, glass tube type fuse.
10.4.3.3 Water Pressure Switch
Start by checking the voltage at the two (2)
legs of this circuit on the controller, see test points
4 and 5 in Figure 26. 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 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 Roll-out Switch (Fusible Link)
To check the roll-out switch (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
roll-out switch (fusible link) or vent temperature limit
has opened, or the wire harness is faulty.
If no voltage is detected at test point 7, the
roll-out switch (fusible link) or vent temperature
limit has failed. This indicates higher than normal
temperatures in the component compartment
(vestibule). The normal component compartment
temperature is well below 300°F (148.9°C). The
roll-out switch (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 roll-out switch (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 roll-out switch (fusible
link). The vent temperature limit will fail due to
abnormal temperatures in the vent system. Excessive
temperatures will cause the switch to open. The vent
temperature limit is designed to open at temperatures
above 464°F (240°C). Excessive temperatures can be
caused by inadequate water flow or a damaged heat
exchanger. Thoroughly investigate the causes for
roll-out switch (fusible link) opening and correct the
problem when replacing the vent temperature limit.
10.4.3.5 Temperature Limit Switches
Circuit
Since the limit switches are not easily accessible,
the voltage can be checked at the two (2) legs of the
circuit at the controller. See test points 8 and 9 in
Figure 26.
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 (1) of the two (2) 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 42°C (108°F) 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 (1) of the limit switches
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.
Page 34
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
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 52°C (126°F) switch is located on
the water outlet side of the heater. This switch is an
automatic reset switch and it does not have a red
button located between the electrical terminals. The
42°C (108°F) switch has a red button located between
the electrical terminals. This switch is located on the
water inlet side of the header.
Move the red meter lead to the terminal
connection on the 52°C (126°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 52°C
(126°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 42°C (108°F) manual reset 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
(2) limits is making a good connection. Now move
the lead to the other connection terminal on the 42°C
(108°F) limit. No voltage at this point indicates that
the limit switch has opened. This switch has a red
manual reset button. Push the button in and recheck
the voltage at the second connection terminal. No
voltage again means a failed switch. Replace the
switch. If there is still no voltage at test point 9 then
the wire harness is faulty and needs replacement.
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
approximately 35 seconds. If the gas valve does not
operate under these conditions, check the voltage
going to the gas valve. Place one (1) voltmeter lead on
the connector on the ignition control where the yellow
wire is connected (test point 15). 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 14 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 220-240V power
and require appropriate servicing precautions. Note
that wires and terminals of these components may
be “hot” even when the component is not operating.
With the igniter energized, there will be voltage
of 105-130 VAC supplied by the ignition control, test
point 13 and test point 12, 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 11 and
test point 10, or between test point 12 and test point
13. 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 (3) times, but thereafter it is
“locked out” by the ignition control for a one (1) 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 (1) hour delay.
To trouble shoot the ignition control's igniter
circuit, connect the voltmeter leads at test points 10
and 11, and set the control to call for heat. Observe
that the normal ignition sequence takes place. After
the 15 second pre-purge, note the voltage between
test points 10 and 11, or test points 13 and 12. Then
look for the glow of the igniter by looking upwards
through the burner tray opening. If the correct voltage
is detected between points 10 and 11, or points 13 and
12 during the trial for ignition but the igniter does not
glow, check igniter as follows:
Check the igniter with the ohmmeter. Disconnect
the igniter terminals from the igniter at test points 10
and 11. Place one (1) 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 12 and
13, or points 10 and 11 during the trial for ignition,
there may be a bad connection, faulty transformer, or
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
Page 35
®
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.
10.5 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 too close at too low of a flow can damage the
appliance. Adjust the switch to turn the heater off,
not on.
The pressure switch is preset at the factory for
activation at 14 kPa. Do not adjust the pressure switch
if the heater is installed more than 4.57 m below the
pool surface. Consult your local Zodiac 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
be adjusted properly.
To adjust the pressure switch, see Figure 24 and
proceed as follows:
1.
Set the heater control to OFF.
2.
It may be necessary to 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, either replace it with a
SLOWLY TURN ADJUSTMENT
SPROCKET CLOCKWISE
UNTIL HEATER GOES OFF.
Figure 24. Adjustment of Pressure Switch
switch that has a lower minimum setting or add
additional back pressure by reducing the eye ball
fittings in the pool).
4.
Set the heater to either POOL or SPA. Heater
should start.
5. With your fingers, turn the adjustment sprocket
very slowly clockwise until the heater goes off.
6. Slowly turn the pressure switch adjustment
sprocket counterclockwise one-quarter turn. The
heater should come back on.
7. 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.
8.
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.
10.6 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 475 lpm, 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 25. 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 Zodiac distributor. See
Section 11 of this manual for the correct kit number.
Page 36
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
BYPASS
ADJUSTMENT
SCREW
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.
Table 9. Water Temperature Rise and Flow Rates
(Measured at Return Header)
THERMOMETER WITH
PETE'S PLUG®
Figure 25. Temperature Rise Measurement
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 9, 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.
3. Start the filter pump.
4. After three (3) 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 (5) 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 9.
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 25. 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
9. 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 7.9 lpm. 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 9 is achieved.
Model
Minimum
Temp Rise,
°F (°C)
Maximum
Temp Rise,
°F (°C)
Minimum
System Flow
lpm (GPM)
125
7 (4)
10 (5)
110 (30)
175
10 (6)
13 (7)
110 (30)
250
16 (9)
20 (11)
110 (30)
325
20 (11)
26 (14)
110 (30)
400
23 (13)
29 (16)
110 (30)
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
heater internal bypass assembly also affects measured
temperature rise.
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
Section 11. Replacement Parts
11.1 Ordering Information
To order or purchase parts for the Legacy Model
WLRZ electronic pool and spa heater, contact your
nearest Zodiac dealer or distributor. See the Zodiac
web site at www.zodiac.com.au for the nearest service
center. If they cannot supply you with what you
need, contact Customer Service at Zodiac, Telephone
1800-688-552.
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.
Page 37
Page 38
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
R
24
VAC
FC+/IGNITER /
IGNITION CONTROL CIRCUIT
13
12
IGN
240
IGN
FS
GY
L1
L2
W/R W/BK
14
W
BK
Y/BK
VAL
BR
15
GND
BL
BR
11
10
W/R
BL
HOT SURFACE IGNITER
BL
G/Y
GAS VALVE
FLAME SENSE
W/BK
BL
BR
G/Y
6
BK
5
2
R
1
BK
BK
2
12
R
11
BK
FUSE
8
7
1
G/Y
220-240 VAC
HEATER
POWER
SUPPLY
WATER
TEMP
SENSOR
BK
BL
WATER
TEMP
FAN/LOUVER
UNIVERSAL
CONTROLLER
POWER INTERFACE
BR
BL
PUMP
COMP/IGN
24 VAC 3
GAS
VALVE
USER
INTERFACE
9
BK O BL R
HIPRESS
HILIMIT
GY
8
GY
7
LOPRESS
FUSELINK
6
BL O
TO COMBUSTION
AIR LOUVER STARTER
(IF USED)
5
WATER
PRESS
GY
4
TO PUMP STARTER
CONTACTS (IF USED)
Y/BK
R
BL
REMOTE
SPA POOL COM
V
BK O BL R
POWER INTERFACE
UNIVERSAL
CONTROLLER
USER INTERFACE
52°C
LIMIT
SWITCH
42°C
LIMIT
SWITCH
Figure 26. Test Point Identification Diagram
BL
152°C
ROLL-OUT
SWITCH
(FUSIBLE LINK)
WATER PRESSURE
SWITCH
240°C
VENT TEMPERATURE
LIMIT
Factory Wired 24V
Factory Wired 220-240V
BK - BLACK
BL - BLUE
BR - BROWN
G/Y - GREEN WITH YELLOW TRACE
GY - GRAY
O - ORANGE
R - RED
V - VIOLET
W/BK - WHITE WITH BLACK TRACE
W/R - WHITE WITH RED TRACE
Y/BK - YELLOW WITH BLACK TRACE
Page 39
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
11.2 Parts List
Model No.
Order
Part No.
Key
No.
Description
Burner Tray Assy, Natural
125-400
R0523601-05
48
Bypass Spring, Adjustable, Polymer
All
R0453901
1
Burner Tray Assy, LP
125-400
R0524601-05
49
Tailpiece w/ Union Nut (Set of 2), 2"
All
R0449000
2
Burner Tray, Shelf Only
125-400
R0469101-05
50
Header Gasket Assembly (Set of 16)
All
R0454300
3
Gas Valve, Natural
All
R0523100
51*
Bypass Hardware, Gaskets
All
R0453800
3
Gas Valve, LP
All
R0524400
52
Heat Exchanger Tube Assy, Copper
125-400
R0490101-05
4
Anti-Rotation Bracket
All
R0469700
53
Plug, Sensor
All
R0456800
5
Hot Surface Igniter
All
R0457501
6
Flame Sensor Rod
All
R0458601
54
Combustion Chamber Panels
125-400
R0494901-05
R0469800
55
Igniter Box Assy
125-400
R0484000
Key
No.
Description
1
Burner, Main
All
Order
Part No.
Water System (Continued)
Main Gas Assembly
7
Model No.
Firebox Components
Jacket Components
8
Burner Manifold
125-400
R0485801-05
9
Manifold Assy, Natural Gas
125-400
R0523201-05
56
Door with Latch
125-400
R0470901-05
9
Manifold Assy, LP
125-400
R0524501-05
57
Latch Assembly
All
R0334900
10*
Gas Conversion, Natural to LPG
All
R0523300
58
Grommet, Sealing, 2"
All
R0460300
11*
Orifice Set (41), Natural
125-325
R0523400
59
Button Plug, 7/8"
All
R0491100
11*
Orifice Set (40), Natural
400
R0528200
60
Rear Panel Assy
125-400
R0482301-05
11*
Orifice Set LP (53), LPG
All
R0469500
61
Side Panel, Right
All
R0482400
62
In/Out Cover Panel, Top
All
R0482500
Electrical System
12
Universal Controller w/ Bezel
All
R0515200
63
In/Out Cover Panel, Bottom
All
R0482600
13
Universal Control User Interface
All
R3008800
64
Side Panel, Left
All
R0482700
14
Universal Control Power Interface
All
R0470200
65
Return Side Cover, Top
All
R0482800
15
Transformer
All
R0486100
66
Return Side Cover, Bottom
All
R0482900
16
Temperature Sensor
All
R0456500
67
Heat Shield
125-400
R0483101-05
17
Gasket, Temperature Sensor
All
R0456600
68
Heat Deflector Guard, Front
125-400
R0483201-05
18
Nut, Sensor Retainer
All
R0523900
69
Rear Partition
125-400
R0483401-05
19
Pressure Switch Assembly (2 PSI)
All
R0455400
70
Heat Deflector Guard, Rear
125-400
R0483501-05
20
Pressure Switch, 2 PSI
All
R0013200
71
Controller Mounting Panel
125-400
R0483901-05
21*
Pressure Switch, 1-10 PSI
All
R0015500
72
Weather Stripping
All
R0491000
22
Water Pressure Switch Tubing
All
R0483600
73
Grommet 7/8"
All
R0492800
22*
Water Pressure Switch Tubing, Long
All
R0483601
Optional Components
23
High-Limit Switch Assembly
All
R0514000
74*
Noncombustible Base
125-400
R0471001-05
24*
High-Limit Switch Set
All
R0514100
75*
Press Relief Valve Kit,75 PSI, Polymer
All
R0336100
25
High-Limit Switch, 42°C (Manual Reset)
All
R0514200
76*
Temp Rise Measurement Kit
All
R0336000
R0514300
NOTES:
1. All hardware sets contain all pieces necessary for assembly, including
gaskets.
26
High-Limit Switch, 52°C
All
27
Ignition Control
All
R0486200
28
Roll-Out (Fusible Link) Assembly, 152°C
All
R0012200
29
Roll-Out (Fusible Link) Bracket
All
R0337200
30*
Australia Wire Harnesses Set
All
R0513500
31
Top Enclosure
125-400
R0470301-05
Vent System
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
125-400
R0491601-05
36
Indoor Draft Hood
125-400
R0499601-05
37
Adapter Plate
125-400
R0478301-05
38*
Clip
All
R0500200
39
Vent Temp Limit Assembly
All
R0534800
40
Vent Temp Limit Switch, 240°C
All
R0524300
R0470800
Water System
41
Inlet/Outlet Header Assy, Polymer
125-400
42
Return Header Assy, Polymer
All
R0454201
43*
Header Hardware Set, Polymer
All
R0454500
44
Heat Exchanger Assembly, Complete
125-400
R0514401-05
45
Heat Exchanger Drain Plugs (2), Polymer
All
R0446000
46
3" Coupling Nut Kit w/ O-ring
All
R0454000
47
Bypass Assembly, Polymer
125-400
R0453701
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 40
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
11.3 General Exploded View
32
35
36
31
37
33
34
66
65
64
42
40
20
44
59
39
19
61
22
54
41
54
59
54
29
28
69
70
55
57
71
70
67
4
13
12
1
72
62
56
68
63
73
61
Page 41
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
11.4 Detailed Exploded View
27
15
13
14
7
9
3
2
55
5
8
45
6
52
47
50
48
17
41
46
49
45
18
16
25
26
24
53
Page 42
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
Legacy™ Model WLRZ Pool/Spa Heater Installation and Operation Manual
®
Page 43
®
®
ZODIAC CUSTOMER SERVICE CENTRE
Zodiac Group Australia
219 Woodpark Rd, Smithfield,
NSW 2164 Australia
Tel: 1800 688 552
Fax: 1300 781 688
Email: [email protected]
www.zodiac.com.au
H0338200 Rev E
Due to constant developments and improvements,
specifications may change without notice.
Improper use could affect performance and void warranty.
© 2012 Copyright Zodiac Pool Systems, Inc.
Zodiac® is a registered trademark of Zodiac International, S.A.S.U., used under license. All other trademarks used
herein are the property of their respective owners.
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